Updates to scripts/Readme.md (related to thirdparty dependencies.

stb_truetype will be removed sometime in the future as there is a good ttf parser available in a fork.

.github/workflows/linux_build.yaml

@@ -70,7 +70,7 @@ jobs:
       run: ls -R ./build || echo "build directory not found"
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: linux-build
         path: ./build/

.github/workflows/macos_build.yaml

@@ -35,7 +35,11 @@ jobs:
         brew install harfbuzz
         brew install odin
 
-        make -C "/opt/homebrew/Cellar/odin/2024-12/libexec/vendor/stb/src"
+        # Get the latest Odin directory dynamically
+        ODIN_VER_DIR=$(ls /opt/homebrew/Cellar/odin/ | sort -r | head -n1)
+        echo "ODIN_VER_DIR=$ODIN_VER_DIR" >> $GITHUB_ENV
+                
+        make -C "/opt/homebrew/Cellar/odin/$ODIN_VER_DIR/libexec/vendor/stb/src"
 
     - name: Run build script
       run: |
@@ -55,7 +59,7 @@ jobs:
       run: ls -R ./build || echo "build directory not found"
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: macos-build
         path: ./build/

.gitignore

@@ -1,7 +1,6 @@
 .vscode
 ols.json
 build
-thirdparty/freetype
-thirdparty/harfbuzz
-thirdparty/sokol
-thirdparty/sokol-tools
+# thirdparty/harfbuzz
+# thirdparty/sokol
+# thirdparty/sokol-tools

Readme.md

@@ -38,10 +38,12 @@ Upcoming:
 * Better support for tuning glyph render sampling
   * Support for sub-pixel AA
   * Ability to decide AA method & degree on a per-font basis
+* Support for Hamza shaper
+  * C-library with ability to set allocator.
 * Multi-threading supported job queue
   * Lift heavy-lifting portion of the library's context into a thread context
   * Synchronize threads by merging their generated layered draw list into a finished draw list for processing on the user's render thread
-  * User defines how thread contexts are distributed for drawing (a basic quadrant-based selector procedure will be provided)
+  * User defines how thread contexts are distributed for drawing.
 
 ## Documentation
 
@@ -57,10 +59,10 @@ See [scripts/Readme.md](scripts/Readme.md) for building examples or utilizing th
 
 Currently, the scripts provided & the library itself were developed & tested on Windows. There are bash scripts for building on Linux (they build on WSL but need additional testing).
 
-The library depends on harfbuzz & stb_truetype to build.  
+The library depends on harfbuzz & stb_truetype to build (a custom stb_truetype package is provided in [thirdparty](./thirdparty/stb/)).  
 Note: harfbuzz could technically be removed if the user removes their definitions, however this hasn't been made into a conditional compilation option yet.
 
-**NOTICE: All library dependency packages are in the "thirdparty" collection of this repository. For their codebase, the user soley has to modify that collection specification for where they would like to put these external vendor package not provided by the offical Odin vendor collections.**
+**NOTICE: All library dependency packages are in the "thirdparty" collection of this repository. For their codebase, the user soley has to modify that collection specification for where they would like to put these packages.**
 
 ## Gallery
 

backend/sokol/backend_sokol.odin

@@ -60,8 +60,8 @@ setup_gfx_objects :: proc( ctx : ^Context, ve_ctx : ^ve.Context, vert_cap, index
 	app_env := glue.environment()
 
 	ctx.glyph_shader  = gfx.make_shader(render_glyph_shader_desc(backend) )
-	ctx.atlas_shader  = gfx.make_shader(ve_blit_atlas_shader_desc(backend) )
-	ctx.screen_shader = gfx.make_shader(ve_draw_text_shader_desc(backend) )
+	ctx.atlas_shader  = gfx.make_shader(blit_atlas_shader_desc(backend) )
+	ctx.screen_shader = gfx.make_shader(draw_text_shader_desc(backend) )
 
 	ctx.draw_list_vbuf = gfx.make_buffer( Buffer_Desciption {
 		size  = cast(uint)(size_of([4]f32) * vert_cap),
@@ -218,12 +218,12 @@ setup_gfx_objects :: proc( ctx : ^Context, ve_ctx : ^ve.Context, vert_cap, index
 	{
 		vs_layout : Vertex_Layout_State
 		{
-			vs_layout.attrs[ATTR_ve_blit_atlas_v_position] = Vertex_Attribute_State {
+			vs_layout.attrs[ATTR_blit_atlas_v_position] = Vertex_Attribute_State {
 				format       = Vertex_Format.FLOAT2,
 				offset       = 0,
 				buffer_index = 0,
 			}
-			vs_layout.attrs[ATTR_ve_blit_atlas_v_texture] = Vertex_Attribute_State {
+			vs_layout.attrs[ATTR_blit_atlas_v_texture] = Vertex_Attribute_State {
 				format       = Vertex_Format.FLOAT2,
 				offset       = size_of(ve.Vec2),
 				buffer_index = 0,
@@ -354,12 +354,12 @@ setup_gfx_objects :: proc( ctx : ^Context, ve_ctx : ^ve.Context, vert_cap, index
 	{
 		vs_layout : Vertex_Layout_State
 		{
-			vs_layout.attrs[ATTR_ve_draw_text_v_position] = Vertex_Attribute_State {
+			vs_layout.attrs[ATTR_draw_text_v_position] = Vertex_Attribute_State {
 				format       = Vertex_Format.FLOAT2,
 				offset       = 0,
 				buffer_index = 0,
 			}
-			vs_layout.attrs[ATTR_ve_draw_text_v_texture] = Vertex_Attribute_State {
+			vs_layout.attrs[ATTR_draw_text_v_texture] = Vertex_Attribute_State {
 				format       = Vertex_Format.FLOAT2,
 				offset       = size_of(ve.Vec2),
 				buffer_index = 0,
@@ -528,12 +528,12 @@ render_text_layer :: proc( screen_extent : ve.Vec2, ve_ctx : ^ve.Context, ctx :
 
 				gfx.apply_pipeline( ctx.atlas_pipeline )
 
-				fs_uniform := Ve_Blit_Atlas_Fs_Params {
+				fs_uniform := Blit_Atlas_Fs_Params {
 					glyph_buffer_size = ve.vec2(ve_ctx.glyph_buffer.size),
 					over_sample       = ve_ctx.glyph_buffer.over_sample.x,
 					region            = cast(i32) draw_call.region,
 				}
-				gfx.apply_uniforms( UB_ve_blit_atlas_fs_params, Range { & fs_uniform, size_of(Ve_Blit_Atlas_Fs_Params) })
+				gfx.apply_uniforms( UB_blit_atlas_fs_params, Range { & fs_uniform, size_of(Blit_Atlas_Fs_Params) })
 
 				gfx.apply_bindings(Bindings {
 					vertex_buffers = {
@@ -544,8 +544,8 @@ render_text_layer :: proc( screen_extent : ve.Vec2, ve_ctx : ^ve.Context, ctx :
 					},
 					index_buffer        = ctx.draw_list_ibuf,
 					index_buffer_offset = 0,
-					images              = { IMG_ve_blit_atlas_src_texture = ctx.glyph_rt_color,   },
-					samplers            = { SMP_ve_blit_atlas_src_sampler = ctx.glyph_rt_sampler, },
+					images              = { IMG_blit_atlas_src_texture = ctx.glyph_rt_color,   },
+					samplers            = { SMP_blit_atlas_src_sampler = ctx.glyph_rt_sampler, },
 				})
 
 			// 3. Use the atlas (.Target) or the glyph buffer (.Target_Unchached) to then render the text.
@@ -568,7 +568,7 @@ render_text_layer :: proc( screen_extent : ve.Vec2, ve_ctx : ^ve.Context, ctx :
 				src_rt      := ctx.atlas_rt_color
 				src_sampler := ctx.atlas_rt_sampler
 
-				fs_target_uniform := Ve_Draw_Text_Fs_Params {
+				fs_target_uniform := Draw_Text_Fs_Params {
 					// glyph_buffer_size = glyph_buf_size,
 					over_sample       = ve_ctx.glyph_buffer.over_sample.x,
 					colour            = draw_call.colour,
@@ -579,7 +579,7 @@ render_text_layer :: proc( screen_extent : ve.Vec2, ve_ctx : ^ve.Context, ctx :
 					src_rt      = ctx.glyph_rt_color
 					src_sampler = ctx.glyph_rt_sampler
 				}
-				gfx.apply_uniforms( UB_ve_draw_text_fs_params, Range { & fs_target_uniform, size_of(Ve_Draw_Text_Fs_Params) })
+				gfx.apply_uniforms( UB_draw_text_fs_params, Range { & fs_target_uniform, size_of(Draw_Text_Fs_Params) })
 
 				gfx.apply_bindings(Bindings {
 					vertex_buffers = {
@@ -590,8 +590,8 @@ render_text_layer :: proc( screen_extent : ve.Vec2, ve_ctx : ^ve.Context, ctx :
 					},
 					index_buffer        = ctx.draw_list_ibuf,
 					index_buffer_offset = 0,
-					images              = { IMG_ve_draw_text_src_texture = src_rt, },
-					samplers            = { SMP_ve_draw_text_src_sampler = src_sampler, },
+					images              = { IMG_draw_text_src_texture = src_rt, },
+					samplers            = { SMP_draw_text_src_sampler = src_sampler, },
 				})
 		}
 

backend/sokol/blit_atlas.shdc.glsl

@@ -1,20 +1,21 @@
-@module ve_blit_atlas
+// module naming rules are currently dumb with shdc rn...
+// @module ve_blit_atlas 
 
 @header package ve_sokol
 @header import sg "thirdparty:sokol/gfx"
 
-@vs ve_blit_atlas_vs
+@vs blit_atlas_vs
 @include ./source_shared.shdc.glsl
 @end
 
-@fs ve_blit_atlas_fs
+@fs blit_atlas_fs
 in  vec2 uv;
 out vec4 frag_color;
 
-layout(binding = 0) uniform texture2D ve_blit_atlas_src_texture;
-layout(binding = 0) uniform sampler   ve_blit_atlas_src_sampler;
+layout(binding = 0) uniform texture2D blit_atlas_src_texture;
+layout(binding = 0) uniform sampler   blit_atlas_src_sampler;
 
-layout(binding = 0) uniform ve_blit_atlas_fs_params {
+layout(binding = 0) uniform blit_atlas_fs_params {
 	vec2  glyph_buffer_size;
 	float over_sample;
 	int   region;
@@ -25,10 +26,10 @@ float down_sample_to_texture( vec2 uv, vec2 texture_size )
 	float down_sample = 1.0f / over_sample;
 
 	float value =
-		texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 0.0f, 0.0f ) * texture_size ).x * down_sample
-	+	texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 0.0f, 1.0f ) * texture_size ).x * down_sample
-	+	texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 1.0f, 0.0f ) * texture_size ).x * down_sample
-	+	texture(sampler2D( ve_blit_atlas_src_texture, ve_blit_atlas_src_sampler ), uv + vec2( 1.0f, 1.0f ) * texture_size ).x * down_sample;
+		texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 0.0f, 0.0f ) * texture_size ).x * down_sample
+	+	texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 0.0f, 1.0f ) * texture_size ).x * down_sample
+	+	texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 1.0f, 0.0f ) * texture_size ).x * down_sample
+	+	texture(sampler2D( blit_atlas_src_texture, blit_atlas_src_sampler ), uv + vec2( 1.0f, 1.0f ) * texture_size ).x * down_sample;
 
 	return value;
 }
@@ -54,4 +55,4 @@ void main()
 }
 @end
 
-@program ve_blit_atlas ve_blit_atlas_vs ve_blit_atlas_fs
+@program blit_atlas blit_atlas_vs blit_atlas_fs

backend/sokol/draw_text.shdc.glsl

@@ -1,9 +1,10 @@
-@module ve_draw_text
+// module naming rules are currently dumb with shdc rn...
+// @module ve_draw_text
 
 @header package ve_sokol
 @header import sg "thirdparty:sokol/gfx"
 
-@vs ve_draw_text_vs
+@vs draw_text_vs
 in  vec2 v_position;
 in  vec2 v_texture;
 out vec2 uv;
@@ -19,14 +20,14 @@ void main()
 }
 @end
 
-@fs ve_draw_text_fs
+@fs draw_text_fs
 in  vec2 uv;
 out vec4 frag_color;
 
-layout(binding = 0) uniform texture2D ve_draw_text_src_texture;
-layout(binding = 0) uniform sampler   ve_draw_text_src_sampler;
+layout(binding = 0) uniform texture2D draw_text_src_texture;
+layout(binding = 0) uniform sampler   draw_text_src_sampler;
 
-layout(binding = 0) uniform ve_draw_text_fs_params {
+layout(binding = 0) uniform draw_text_fs_params {
 	vec2  glyph_buffer_size;
 	float over_sample;
 	vec4  colour;
@@ -34,18 +35,18 @@ layout(binding = 0) uniform ve_draw_text_fs_params {
 
 void main()
 {
-	float alpha = texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler ), uv ).x;
+	float alpha = texture(sampler2D( draw_text_src_texture, draw_text_src_sampler ), uv ).x;
 
 	const vec2  texture_size = glyph_buffer_size;
 	const float down_sample  = 1.0f / over_sample;
 
 	alpha =
-		(texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( -0.5f, -0.5f) * texture_size ).x * down_sample)
-	+	(texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2( -0.5f,  0.5f) * texture_size ).x * down_sample)
-	+	(texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2(  0.5f, -0.5f) * texture_size ).x * down_sample)
-	+	(texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler), uv + vec2(  0.5f,  0.5f) * texture_size ).x * down_sample);
+		(texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( -0.5f, -0.5f) * texture_size ).x * down_sample)
+	+	(texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2( -0.5f,  0.5f) * texture_size ).x * down_sample)
+	+	(texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2(  0.5f, -0.5f) * texture_size ).x * down_sample)
+	+	(texture(sampler2D( draw_text_src_texture, draw_text_src_sampler), uv + vec2(  0.5f,  0.5f) * texture_size ).x * down_sample);
 	frag_color = vec4( colour.xyz, colour.a * alpha );
 }
 @end
 
-@program ve_draw_text ve_draw_text_vs ve_draw_text_fs
+@program draw_text draw_text_vs draw_text_fs

backend/sokol/render_glyph.odin

@@ -6,7 +6,7 @@ import sg "thirdparty:sokol/gfx"
     Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
 
     Cmdline:
-        sokol-shdc --input C:\projects\VEFontCache-Odin\backend\sokol\render_glyph.shdc.glsl --output C:\projects\VEFontCache-Odin\backend\sokol\render_glyph.odin --slang glsl410:glsl300es:hlsl4:metal_macos:wgsl --format=sokol_odin --module =render_glyph
+        sokol-shdc --input C:\Projects\VEFontCache-Odin\backend\sokol\render_glyph.shdc.glsl --output C:\Projects\VEFontCache-Odin\backend\sokol\render_glyph.odin --slang glsl410:glsl300es:hlsl4:metal_macos:wgsl --format=sokol_odin
 
     Overview:
     =========
@@ -518,14 +518,18 @@ render_glyph_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
         desc.vertex_func.entry = "main"
         desc.fragment_func.source = transmute(cstring)&render_glyph_fs_source_glsl410
         desc.fragment_func.entry = "main"
+        desc.attrs[0].base_type = .FLOAT
         desc.attrs[0].glsl_name = "v_position"
+        desc.attrs[1].base_type = .FLOAT
         desc.attrs[1].glsl_name = "v_texture"
     case .GLES3:
         desc.vertex_func.source = transmute(cstring)&render_glyph_vs_source_glsl300es
         desc.vertex_func.entry = "main"
         desc.fragment_func.source = transmute(cstring)&render_glyph_fs_source_glsl300es
         desc.fragment_func.entry = "main"
+        desc.attrs[0].base_type = .FLOAT
         desc.attrs[0].glsl_name = "v_position"
+        desc.attrs[1].base_type = .FLOAT
         desc.attrs[1].glsl_name = "v_texture"
     case .D3D11:
         desc.vertex_func.source = transmute(cstring)&render_glyph_vs_source_hlsl4
@@ -534,8 +538,10 @@ render_glyph_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
         desc.fragment_func.source = transmute(cstring)&render_glyph_fs_source_hlsl4
         desc.fragment_func.d3d11_target = "ps_4_0"
         desc.fragment_func.entry = "main"
+        desc.attrs[0].base_type = .FLOAT
         desc.attrs[0].hlsl_sem_name = "TEXCOORD"
         desc.attrs[0].hlsl_sem_index = 0
+        desc.attrs[1].base_type = .FLOAT
         desc.attrs[1].hlsl_sem_name = "TEXCOORD"
         desc.attrs[1].hlsl_sem_index = 1
     case .METAL_MACOS:
@@ -543,11 +549,15 @@ render_glyph_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
         desc.vertex_func.entry = "main0"
         desc.fragment_func.source = transmute(cstring)&render_glyph_fs_source_metal_macos
         desc.fragment_func.entry = "main0"
+        desc.attrs[0].base_type = .FLOAT
+        desc.attrs[1].base_type = .FLOAT
     case .WGPU:
         desc.vertex_func.source = transmute(cstring)&render_glyph_vs_source_wgsl
         desc.vertex_func.entry = "main"
         desc.fragment_func.source = transmute(cstring)&render_glyph_fs_source_wgsl
         desc.fragment_func.entry = "main"
+        desc.attrs[0].base_type = .FLOAT
+        desc.attrs[1].base_type = .FLOAT
     }
     return desc
 }

backend/sokol/render_glyph.shdc.glsl

@@ -1,4 +1,5 @@
-@module render_glyph
+// module naming rules are currently dumb with shdc rn...
+// @module render_glyph
 
 @header package ve_sokol
 @header import sg "thirdparty:sokol/gfx"

docs/Readme.md

@@ -62,7 +62,7 @@ There a total of six procedures, 3 for shapes, 3 for text:
 * `draw_text_view_space`
 * `draw_text`
 
-The normalized space procedures are the `baseline` interface draw procedures. They expec the position, and scale provided to operate with an unsigned normalized space where the bottom left is 0.0, 0.0 and the top right is 1.0, 1.0.
+The normalized space procedures are the `baseline` interface draw procedures. They expect the position, and scale provided to operate with an unsigned normalized space where the bottom left is 0.0, 0.0 and the top right is 1.0, 1.0.
 
 The view space will normalize the position and scale for the user based on the provided view and zoom. The coordinate system is still unsigned just scaled to the view's size.
 
@@ -105,9 +105,13 @@ Provides a Vec2 the width and height occupied by the provided text string. The y
 
 A wrapper for `parser_get_font_vertical_metrics`. Will provide the ascent, descent, and line_gap for a font entry.
 
+Stuff used by the draw list generation interface or just getters and setters.
+
 ## Miscellaneous
 
-Stuff used by the draw list generation interface or just getters and setters.
+### get_font_entry
+
+Provides the backend Entry for for the given `Font_ID` (passed immutably). If the user desires a mutable reference, just resolve it manually.
 
 ### get_cursor_pos
 
@@ -136,6 +140,23 @@ Does nothing when zoom is 1.0
 
 Uses `resolve_draw_px_size` to constrain which font size is used for the zoom.
 
+## resolve_px_scalar_size
+
+Get the target pixel, font_scale, and scale for the given font pixel size, and scalar multiple to apply. (Normalized space with norm_scale)
+To derived norm_scale use:  get_normalized_position_scale or just do (scale * (1 / view))
+
+This is used within:
+
+* draw_shape_view_space
+* draw_text_view_space
+* draw_shape
+* draw_text
+
+### snap_normalized_position_to_view
+
+Will snap the given position to the nearest pixel via ceil of the given view.  
+Does nothing if view is 1 or 0
+
 ### set_alpha_scalar
 
 This is an artifact feature of the current shader, it *may* be removed in the future... Increasing the alpha of the colour draw with above 1.0 increases the edge contrast of the glyph shape.

docs/guide_architecture.md

@@ -29,7 +29,7 @@ All caching uses [LRU.odin](../vefontcache/LRU.odin)
 
 The library lifetime is straightforward: you have a startup procedure that should be called during your usual app initialization. From there you may either choose to manually shut it down or let the OS clean it up.
 
-If hot-reload is desired, you just need to call hot_reload with the context's backing allocator to refresh the procedure references. After the DLL has been reloaded, these should be the only aspects that have been scrambled.  
+If hot-reload is desired, you just need to call `hot_reload` with the context's backing allocator to refresh the procedure references. After the DLL has been reloaded, these should be the only aspects that have been scrambled.  
 Usually when hot-reloading the library for tuning or major changes, you'd also want to clear the caches. Simply call `clear_atlas_region_caches` & `clear_shape_cache` right after.
 
 Ideally, there should be zero dynamic allocation on a per-frame basis as long as the reserves for the dynamic containers are never exceeded. It's acceptable if they do exceed as their memory locality is so large their distance in the pages to load into CPU cache won't matter - it just needs to be a low incidence.
@@ -76,7 +76,7 @@ Shaped_Text :: struct #packed {
 }
 ```
 
-The result of the shaping process is the glyphs and their positions for the the shape; historically resembling whats known as a *Slug* of prepared text for printing. The end position of where the user's "cursor" would be is also recorded which provided the end position of the shape. The size of the shape is also resolved here, which if using px_scalar must be downscaled. `measure_shape_size` does the downscaling for the user.
+The result of the shaping process is the glyphs and their positions for the the shape; historically resembling whats known as a *Slug* of prepared text for printing. The end position of where the user's "cursor" would be is recorded which is provided at the end position of the shape. The size of the shape is resolved here as well. If using px_scalar, the shape.size must be downscaled. `measure_shape_size` does the downscaling for the user.
 
 `visible` tracks which of the glyphs will actually be relevant for the draw_list pass. This is to avoid a conditional jump during the draw list gen pass. When accessing glyph or position during the draw_list gen, they will use visible's relative index.
 
@@ -203,7 +203,7 @@ For `to_cached`:
 
 ### On Layering
 
-The base draw list generation pippline provided by the library allows the user to batch whatever they want into a single "layer".
+The base draw list generation pipeline provided by the library allows the user to batch whatever they want into a single "layer".
 However, the user most likely would want take into consideration: font instances, font size, colors; these are things that may benefit from having shared locality during a layer batch. Overlaping text benefits from the user to handle the ordering via layers.
 
 Layers (so far) are just a set of offssets tracked by the library's `Context.draw_layer` struct. When `flush_draw_list_layer` is called, the offsets are set to the current length of the draw list. This allows the rendering backend to retrieve the latest set of vertices, indices, and calls to render on a per-layer basis with: `get_draw_list_layer`.
@@ -231,4 +231,4 @@ Draw_List_Layer :: struct {
 ```
 
 Eventually the library may provide this since adding that feature is relatively cheap and and a low line-count addition to the interface.
-There should be little to no perfomrance loss from doing so as the iteration size is two large of a surface area to matter (so its just pipeline ergonomics)
+There should be little to no perfomrance loss from doing so as the iteration size is two large of a surface area to matter (so its just pipeline ergonomics).

docs/guide_backend.md

@@ -23,7 +23,7 @@ There are four passes that need to be handled when rendering a draw list:
 * Target: Blitting from the atlas image to the target image
 * Target_Uncached: Blitting from the glyph buffer image to the target image
 
-The Target & Target_Uncached passes can technically be handled in the same case. The user just needs to swap between using the atlas image and the glyph buffer image. This is how the backend_soko.odin's `render_text_layer` has these passes set up.
+The Target & Target_Uncached passes can technically be handled in the same case. The user just needs to swap between using the atlas image and the glyph buffer image. This is how the backend_sokol.odin's `render_text_layer` has these passes set up.
 
 ## Vertex Buffer Layout
 

examples/sokol_demo/sokol_demo.odin

@@ -227,7 +227,8 @@ init :: proc "c" ()
 	}
 
 	glyph_draw_opts := ve.Init_Glyph_Draw_Params_Default
-	glyph_draw_opts.snap_glyph_height = true
+	glyph_draw_opts.snap_glyph_width  = false
+	glyph_draw_opts.snap_glyph_height = false
 
 	shaper_opts := ve.Init_Shaper_Params_Default
 	shaper_opts.snap_glyph_position = true
@@ -235,8 +236,8 @@ init :: proc "c" ()
 	ve.startup( & demo_ctx.ve_ctx, .STB_TrueType, allocator = context.allocator, 
 		glyph_draw_params = glyph_draw_opts,
 		shaper_params     = shaper_opts,
-		px_scalar         = 1.6,
-		alpha_sharpen     = 0.35,
+		px_scalar         = 1.4,
+		alpha_sharpen     = 0.1,
 	)
 	ve_sokol.setup_gfx_objects( & demo_ctx.render_ctx, & demo_ctx.ve_ctx, vert_cap = 256 * 1024, index_cap = 512 * 1024 )
 

scripts/Readme.md

@@ -14,13 +14,12 @@ Its assumed the user has Odin installed and exposed to the OS enviornment's PATH
 
 A custom version of the vendor:stb/truetype is maintained by this library:
 
-* Added ability to set the stb_truetype allocator for STBTT_MALLOC and STBTT_FREE.
+* Added ability to set the stb_truetype allocator for `STBTT_MALLOC` and `STBTT_FREE`.
 * Changed procedure signatures to pass the font_info struct by immutable ptr (#by_ptr) when the C equivalent has their parameter as `const*`.
 
-All other dependencies are cloned directly into a created thirdparty directory.
+All other dependencies are provided directly into the thirdparty directory. However they can be cloned from their corresponding github repos:
 
 [harfbuzz](https://github.com/Ed94/odin_harfbuzz) is configured to pull & build the C++ library, it will use the MSVC toolchain (you can change it to use meson instead of preferred).  
-[freetype](https://github.com/Ed94/odin-freetype) package has pre-built .lib files for windows (debug/release).  
 [sokol](https://github.com/floooh/sokol) built using `build_sokol_library.ps1`.  
 [sokol-tools](https://github.com/floooh/sokol-tools) used by `compile_sokol_shaders.ps1` to compile the glsl files into odin files for the sokol backend.
 
@@ -46,7 +45,6 @@ Will run `Launch-VsDevShell.ps1` for the user to populate the shell with its env
 
 A few helper functions to utilize powerhsell & github repos as package management.
 
-
 ### odin_compiler_defs.ps1
 
 Just variable declarations based on flags used with the odin compiler's CLI.
@@ -55,16 +53,17 @@ Just variable declarations based on flags used with the odin compiler's CLI.
 
 Essentially equivalent scripts from the PS scripts used on windows were ported to bash. Tested in WSL ubuntu image for Linux, and a github action workflow for MacOS.
 
+Build sokol manually if not using a fresh clone.
+
 #### Note on dependency packages
 
-Some dependencies are cloned directly into a created thirdparty directory.
+All other dependencies are provided directly into the thirdparty directory. However they can be cloned from their corresponding github repos:
 
 [harfbuzz](https://github.com/Ed94/odin_harfbuzz) is configured to pull & build the C++ library, it will use the gcc toolchain (you can change it to use meson instead of preferred).  
 
 * On MacOS, harbuzz imports through system:harfbuzz instead as there is an issue with importing via relative directories.
   * Use for example `brew install harfbuzz`
 
-[freetype](https://github.com/Ed94/odin-freetype) package does not come with binaries (uses "system:" instead)  
 [sokol](https://github.com/floooh/sokol) built using `build_sokol_library.sh`.  
 [sokol-tools](https://github.com/floooh/sokol-tools) used by `compile_sokol_shaders.sh` to compile the glsl files into odin files for the sokol backend.
 

scripts/build_sokol_demo.ps1

@@ -32,19 +32,18 @@ elseif ( $IsWindows ) {
 write-host "Core Count - Physical: $CoreCount_Physical Logical: $CoreCount_Logical"
 #endregion CPU_Info
 
-$url_freetype       = 'https://github.com/Ed94/odin-freetype.git'
+# $url_freetype       = 'https://github.com/Ed94/odin-freetype.git'
 $url_harfbuzz       = 'https://github.com/Ed94/harfbuzz-odin.git'
 $url_sokol          = 'https://github.com/floooh/sokol-odin.git'
 $url_sokol_tools    = 'https://github.com/floooh/sokol-tools-bin.git'
 
-$path_freetype      = join-path $path_thirdparty 'freetype'
+# $path_freetype      = join-path $path_thirdparty 'freetype'
 $path_harfbuzz      = join-path $path_thirdparty 'harfbuzz'
 $path_sokol         = join-path $path_thirdparty 'sokol'
 $path_sokol_tools   = join-path $path_thirdparty 'sokol-tools'
 
 $sokol_build_clibs_command = join-path $path_scripts 'build_sokol_library.ps1'
 
-clone-gitrepo $path_freetype    $url_freetype
 clone-gitrepo $path_sokol_tools $url_sokol_tools
 
 Update-GitRepo -path $path_sokol    -url $url_sokol     -build_command $sokol_build_clibs_command
@@ -103,11 +102,11 @@ function build-SokolBackendDemo
 	# $build_args += $flag_micro_architecture_native
 	$build_args += $flag_use_separate_modules
 	$build_args += $flag_thread_count + $CoreCount_Physical
-	# $build_args += $flag_optimize_none
+	$build_args += $flag_optimize_none
 	# $build_args += $flag_optimize_minimal
-	$build_args += $flag_optimize_speed
+	# $build_args += $flag_optimize_speed
 	# $build_args += $falg_optimize_aggressive
-	# $build_args += $flag_debug
+	$build_args += $flag_debug
 	$build_args += $flag_pdb_name + $pdb
 	$build_args += $flag_subsystem + 'windows'
 	# $build_args += ($flag_extra_linker_flags + $linker_args )

scripts/build_sokol_demo.sh

@@ -42,20 +42,20 @@ else
 fi
 echo "Core Count - Physical: $CoreCount_Physical Logical: $CoreCount_Logical"
 
-url_freetype='https://github.com/Ed94/odin-freetype.git'
+# url_freetype='https://github.com/Ed94/odin-freetype.git'
 url_harfbuzz='https://github.com/Ed94/harfbuzz-odin.git'
 url_sokol='https://github.com/floooh/sokol-odin.git'
 url_sokol_tools='https://github.com/floooh/sokol-tools-bin.git'
 
-path_freetype="$path_thirdparty/freetype"
+# path_freetype="$path_thirdparty/freetype"
 path_harfbuzz="$path_thirdparty/harfbuzz"
 path_sokol="$path_thirdparty/sokol"
 path_sokol_tools="$path_thirdparty/sokol-tools"
 
 sokol_build_clibs_command="$path_scripts/build_sokol_library.sh"
 
-clone_gitrepo "$path_freetype" "$url_freetype"
-clone_gitrepo "$path_sokol_tools" "$url_sokol_tools"
+# clone_git_repo "$path_freetype" "$url_freetype"
+clone_git_repo "$path_sokol_tools" "$url_sokol_tools"
 
 update_git_repo "$path_sokol" "$url_sokol" "$sokol_build_clibs_command"
 update_git_repo "$path_harfbuzz" "$url_harfbuzz" "./scripts/build.sh"

scripts/compile_sokol_shaders.ps1

@@ -24,7 +24,7 @@ $flag_format_odin = '--format=sokol_odin'
 $flag_module      = '--module'
 
 push-location $path_backend_sokol
-& $sokol_shdc --input $shadersrc_blit_atlas   --output $shaderout_blit_atlas   --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin $flag_module='blit_atlas'
-& $sokol_shdc --input $shadersrc_render_glyph --output $shaderout_render_glyph --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin $flag_module='render_glyph'
-& $sokol_shdc --input $shadersrc_draw_text    --output $shaderout_draw_text    --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin $flag_module='draw_text'
+& $sokol_shdc --input $shadersrc_blit_atlas   --output $shaderout_blit_atlas   --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin
+& $sokol_shdc --input $shadersrc_render_glyph --output $shaderout_render_glyph --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin
+& $sokol_shdc --input $shadersrc_draw_text    --output $shaderout_draw_text    --slang 'glsl410:glsl300es:hlsl4:metal_macos:wgsl' $flag_format_odin
 pop-location

scripts/helpers/misc.ps1

@@ -65,6 +65,10 @@ function Update-GitRepo
 		write-host
 		return
 	}
+	
+	if ( -not(test-path -Path (join-path $path '.git'))) {
+		return # Assume the user doesn't want to use git grab packages automatically.
+	}
 
 	git -C $path fetch
 	$latest_commit_hash = git -C $path rev-parse '@{u}'

scripts/helpers/misc.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-clone_gitrepo() {
+clone_git_repo() {
     local path="$1"
     local url="$2"
 
@@ -77,6 +77,10 @@ update_git_repo() {
         return
     fi
 
+    if [ ! -d "$path/.git" ]; then
+        return # Assume the user doesn't want to use git grab packages automatically.
+    fi
+
     git -C "$path" fetch
     local latest_commit_hash=$(git -C "$path" rev-parse '@{u}')
     local last_built_hash=""

scripts/helpers/odin_compiler_defs.sh

@@ -63,3 +63,4 @@ flag_vet_using_stmt='-vet-using-stmt'
 
 # Assuming to be in default path, change if otherwise
 odin_compiler='odin'
+# odin_compiler='/mnt/c/projects/SectrPrototype/toolchain/Odin/odin'

thirdparty/harfbuzz/README.md

@@ -0,0 +1,10 @@
+# harfbuzz-odin
+
+Harbuzz bindings for odin.  
+
+Its not the full amount, just enough to utilize its base shaping functionality.
+
+## scripts/build.ps1
+
+I only have support for building on Windows & Linux. However, Mac and Linux technically can just reference the library from their respective package managers.
+Will pull the latest source from the harfbuzz repository and build requisite libraries. Adjust the code as needed, by default a custom unity build is done (see `Build-RepoWithoutMeson`).

thirdparty/harfbuzz/harfbuzz.odin

@@ -0,0 +1,345 @@
+/*
+NOTE(Ed): These bindings are currently partial for usage in a VE Font Cache port.
+*/
+package harfbuzz
+
+import "core:c"
+
+when ODIN_OS == .Windows {
+	// @(extra_linker_flags="/NODEFAULTLIB:msvcrt")
+	// foreign import harfbuzz "./lib/win64/libharfbuzz-0.dll"
+	foreign import harfbuzz "./lib/win64/harfbuzz.lib"
+	// foreign import harfbuzz "./lib/win64/libharfbuzz.a"
+}
+else when ODIN_OS == .Linux {
+	// foreign import harfbuzz "./lib/linux64/libharfbuzz.so"
+	foreign import harfbuzz "system:harfbuzz"
+}
+else when ODIN_OS == .Darwin {
+	// foreign import harfbuzz { "./lib/osx/libharfbuzz.so" }
+	foreign import harfbuzz "system:harfbuzz"
+}
+
+Buffer        :: distinct rawptr     // hb_buffer_t*
+Blob          :: distinct rawptr     // hb_blob_t*
+Codepoint     :: distinct c.uint32_t // hb_codepoint_t
+Face          :: distinct rawptr     // hb_face_t*
+Font          :: distinct rawptr     // hb_font_t*
+Language      :: distinct rawptr     // hb_language_t*
+Mask          :: distinct c.uint32_t // hb_mask_t
+Position      :: distinct c.uint32_t // hb_position_t
+Tag           :: distinct c.uint32_t // hb_tag_t
+Unicode_Funcs :: distinct rawptr     // hb_unicode_funcs_t*
+
+hb_var_int_t :: struct #raw_union {
+	u32 : c.uint32_t,
+	i32 : c.int32_t,
+	u16 : [2]c.uint16_t,
+	i16 : [2]c.int16_t,
+	u8  : [4]c.uint8_t,
+	i8  : [4]c.int8_t,
+}
+
+Feature :: struct {
+	tag   : Tag,
+	value : c.uint32_t,
+	start : c.uint,
+	end   : c.uint,
+}
+
+Glyph_Info :: struct {
+	codepoint : Codepoint,
+	 /*< private >*/
+	mask      : Mask,
+	/*< public >*/
+	cluster   : c.uint32_t,
+
+	/*< private >*/
+	var1 : hb_var_int_t,
+	var2 : hb_var_int_t,
+}
+
+Glyph_Position :: struct {
+	x_advance : Position,
+	y_advance : Position,
+	x_offset  : Position,
+	y_offset  : Position,
+
+	/*< private >*/
+	var : hb_var_int_t,
+}
+
+Segment_Properties :: struct {
+	direction : Direction,
+	script    : Script,
+	language  : Language,
+	reserved1 : rawptr,
+	reserved2 : rawptr,
+}
+
+Buffer_Content_Type :: enum c.uint {
+	INVALID = 0,
+  UNICODE,
+  GLYPHS
+}
+
+Direction :: enum c.uint {
+	INVALID = 0,
+	LGR     = 4,
+	RTL,
+	TTB,
+	BTT,
+}
+
+Script :: enum u32 {
+	// ID = ((hb_tag_t)((((uint32_t)(c1)&0xFF)<<24)|(((uint32_t)(c2)&0xFF)<<16)|(((uint32_t)(c3)&0xFF)<<8)|((uint32_t)(c4)&0xFF))),
+
+	// 1.1
+	COMMON    = ( u32('Z') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('y') & 0xFF ) << 8 | ( u32('y') & 0xFF ),
+	INHERITED = ( u32('Z') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+
+	// 5.0
+	UNKNOWN = ( u32('Z') & 0xFF ) << 24 | ( u32('z') & 0xFF ) << 16 | ( u32('z') & 0xFF ) << 8 | ( u32('z') & 0xFF ),
+
+	// 1.1
+	ARABIC     = ( u32('A') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	ARMENIAN   = ( u32('A') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('n') & 0xFF ),
+	BENGALI    = ( u32('B') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	CYRILLIC   = ( u32('C') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('l') & 0xFF ),
+	DEVANAGARI = ( u32('D') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('v') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	GEORGIAN   = ( u32('G') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	GREEK      = ( u32('G') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('e') & 0xFF ) << 8 | ( u32('k') & 0xFF ),
+	GUJARATI   = ( u32('G') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('j') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	GURMUKHI   = ( u32('G') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('u') & 0xFF ),
+	HANGUL     = ( u32('H') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	HAN        = ( u32('H') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	HEBREW     = ( u32('H') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('b') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	HIRAGANA   = ( u32('H') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	KANNADA    = ( u32('K') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('d') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	KATAKANA   = ( u32('K') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	LAO        = ( u32('L') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	LATIN      = ( u32('L') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('n') & 0xFF ),
+	MALAYALAN  = ( u32('M') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('y') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	ORIYA      = ( u32('O') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('y') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	TAMIL      = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('l') & 0xFF ),
+	TELUGU     = ( u32('T') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('u') & 0xFF ),
+	THAI       = ( u32('T') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+
+	// 2.0
+	TIBETAN = ( u32('T') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('b') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+
+	// 3.0
+	BOPOMOFO           = ( u32('B') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('p') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	BRAILLE            = ( u32('B') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	CANADIAN_SYLLABICS = ( u32('C') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('s') & 0xFF ),
+	CHEROKEE           = ( u32('C') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('e') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	ETHIOPIC           = ( u32('E') & 0xFF ) << 24 | ( u32('t') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	KHMER              = ( u32('K') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	MONGOLIAN          = ( u32('M') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	MYANMAR            = ( u32('M') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	OGHAM              = ( u32('O') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('n') & 0xFF ),
+	RUNIC              = ( u32('R') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	SINHALA            = ( u32('S') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+	SYRIAC             = ( u32('S') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('c') & 0xFF ),
+	THAANA             = ( u32('T') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	YI                 = ( u32('Y') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('i') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+
+	// 3.1
+	DESERET    = ( u32('D') & 0xFF ) << 24 | ( u32('s') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	GOTHIC     = ( u32('G') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+	OLD_ITALIC = ( u32('I') & 0xFF ) << 24 | ( u32('t') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('l') & 0xFF ),
+
+	// 3.2
+	BUHID    = ( u32('B') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	HANUNOO  = ( u32('H') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	TAGALOG  = ( u32('T') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	TAGBANWA = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+
+	// 4.0
+	CYPRIOT  = ( u32('C') & 0xFF ) << 24 | ( u32('p') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	LIMBU    = ( u32('L') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	LINEAR_B = ( u32('L') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('i') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	OSMANYA  = ( u32('O') & 0xFF ) << 24 | ( u32('m') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	SHAVIAN  = ( u32('S') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('w') & 0xFF ),
+	TAI_LE   = ( u32('T') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('e') & 0xFF ),
+	UGARITIC = ( u32('U') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+
+	// 4.1
+	BUGINESE     = ( u32('B') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	COPTIC       = ( u32('C') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('p') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	GLAGOLITIC   = ( u32('G') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	KHAROSHTHI   = ( u32('K') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	NEW_TAI_LUE  = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('u') & 0xFF ),
+	OLD_PERSIAN  = ( u32('X') & 0xFF ) << 24 | ( u32('p') & 0xFF ) << 16 | ( u32('e') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	SYLOTI_NAGRI = ( u32('S') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	TIFINAGH     = ( u32('T') & 0xFF ) << 24 | ( u32('f') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+
+	// 5.0
+	BALINESE   = ( u32('B') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	CUNEIFORM  = ( u32('X') & 0xFF ) << 24 | ( u32('s') & 0xFF ) << 16 | ( u32('u') & 0xFF ) << 8 | ( u32('x') & 0xFF ),
+	NKO        = ( u32('N') & 0xFF ) << 24 | ( u32('k') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	PHAGS_PA   = ( u32('P') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	PHOENICIAN = ( u32('P') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('x') & 0xFF ),
+
+	// 5.1
+	CARIAN     = ( u32('C') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	CHAM       = ( u32('C') & 0xFF ) << 24 | ( u32('j') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	KAYAH_LI   = ( u32('K') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	LEPCHA     = ( u32('L') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('p') & 0xFF ) << 8 | ( u32('c') & 0xFF ),
+	LYCIAN     = ( u32('L') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('c') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	LYDIAN     = ( u32('L') & 0xFF ) << 24 | ( u32('y') & 0xFF ) << 16 | ( u32('d') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	OL_CHIKI   = ( u32('O') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('c') & 0xFF ) << 8 | ( u32('k') & 0xFF ),
+	REJANG     = ( u32('R') & 0xFF ) << 24 | ( u32('n') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	SAURASHTRA = ( u32('S') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('u') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	SUNDANESE  = ( u32('S') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	VAI        = ( u32('V') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('i') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+
+	// 5.2
+	AVESTAN                 = ( u32('A') & 0xFF ) << 24 | ( u32('v') & 0xFF ) << 16 | ( u32('s') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	BAMUM                   = ( u32('B') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('u') & 0xFF ),
+	EGYPTIAN_HIEROGLYPHS    = ( u32('E') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('y') & 0xFF ) << 8 | ( u32('p') & 0xFF ),
+	IMPERIAL_ARAMAIC        = ( u32('A') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	INSCRIPTIONAL_PAHLAVI   = ( u32('P') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	INSCRIPTIONAL_PARTHAIAN = ( u32('P') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	JAVANESE                = ( u32('J') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('v') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	KAITHI                  = ( u32('K') & 0xFF ) << 24 | ( u32('t') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	LISU                    = ( u32('L') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('s') & 0xFF ) << 8 | ( u32('u') & 0xFF ),
+	MEETEI_MAYEK            = ( u32('M') & 0xFF ) << 24 | ( u32('t') & 0xFF ) << 16 | ( u32('e') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	OLD_SOUTH_ARABIAN       = ( u32('S') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	OLD_TURKIC              = ( u32('O') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('k') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+	SAMARITAN               = ( u32('S') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('m') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	TAI_THAM                = ( u32('L') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	TAI_VIET                = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('v') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+
+	// 6.0
+	BATAK   = ( u32('B') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('k') & 0xFF ),
+	BRAHMI  = ( u32('B') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+	MANDAIC = ( u32('M') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+
+	// 6.1
+	CHAKMA               = ( u32('C') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('k') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	MEROITIC_CURSIVE     = ( u32('M') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('c') & 0xFF ),
+	MEROITIC_HIEROGLYPHS = ( u32('M') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	MIAO                 = ( u32('P') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	SHARADA              = ( u32('S') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	SORA_SOMPENG         = ( u32('S') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	TAKRI                = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('k') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+
+	// 0.9.30
+	// 7.0
+	BASSA_VAH          = ( u32('B') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('s') & 0xFF ) << 8 | ( u32('s') & 0xFF ),
+	CAUCASIAN_ALBANIAN = ( u32('A') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	DUPLOYAN           = ( u32('D') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('p') & 0xFF ) << 8 | ( u32('l') & 0xFF ),
+	ELBASAN            = ( u32('E') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('b') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	GRANTHA            = ( u32('G') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('n') & 0xFF ),
+	KHOJKI             = ( u32('K') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('j') & 0xFF ),
+	KHUDAWADI          = ( u32('S') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	LINEAR_A           = ( u32('L') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	MAHAJANI           = ( u32('M') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('j') & 0xFF ),
+	MANICHAEAN         = ( u32('M') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	MENDE_KIKAKUI      = ( u32('M') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	MODI               = ( u32('M') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('d') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+	MRO                = ( u32('M') & 0xFF ) << 24 | ( u32('r') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	NABATAEAN          = ( u32('N') & 0xFF ) << 24 | ( u32('b') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	OLD_NORTH_ARABIAN  = ( u32('N') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('b') & 0xFF ),
+	OLD_PERMIC         = ( u32('P') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	PAHAWH_HMONG       = ( u32('H') & 0xFF ) << 24 | ( u32('m') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	PALMYRENE          = ( u32('P') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	PAU_CIN_HAU        = ( u32('P') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('u') & 0xFF ) << 8 | ( u32('c') & 0xFF ),
+	PSALTER_PAHLAVI    = ( u32('P') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('p') & 0xFF ),
+	SIDDHAM            = ( u32('S') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('d') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	TIRHUNTA           = ( u32('T') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('h') & 0xFF ),
+	WARANG_CITI        = ( u32('W') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+
+	// 8.0
+	AHOM                  = ( u32('A') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('o') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	ANATOLIAN_HIEROGLYPHS = ( u32('H') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('u') & 0xFF ) << 8 | ( u32('w') & 0xFF ),
+	HATRAN                = ( u32('H') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	MULTANI               = ( u32('M') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('t') & 0xFF ),
+	OLD_HUNGARIAN         = ( u32('H') & 0xFF ) << 24 | ( u32('u') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	SIGNWRITING           = ( u32('S') & 0xFF ) << 24 | ( u32('g') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('w') & 0xFF ),
+
+	// 1.3.0
+	// 9.0
+	ADLAM     = ( u32('A') & 0xFF ) << 24 | ( u32('d') & 0xFF ) << 16 | ( u32('l') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	BHAIKSUKI = ( u32('B') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('k') & 0xFF ) << 8 | ( u32('s') & 0xFF ),
+	MARCHEN   = ( u32('M') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('c') & 0xFF ),
+	OSAGE     = ( u32('O') & 0xFF ) << 24 | ( u32('s') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('e') & 0xFF ),
+	TANGUT    = ( u32('T') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	NEWA      = ( u32('N') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('w') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+
+	// 1.6.0
+	// 10.0
+	MASARAM_GONDI    = ( u32('D') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	NUSHU            = ( u32('D') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	SOYOMBO          = ( u32('D') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	ZANABAZAR_SQUARE = ( u32('D') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+
+	// 1.8.0
+	// 11.0
+	DOGRA           = ( u32('D') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('r') & 0xFF ),
+	GUNJALA_GONDI   = ( u32('G') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	HANIFI_ROHINGYA = ( u32('R') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('g') & 0xFF ),
+	MAKASAR         = ( u32('M') & 0xFF ) << 24 | ( u32('k') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('a') & 0xFF ),
+	MEDEFAIDRIN     = ( u32('M') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('d') & 0xFF ) << 8 | ( u32('f') & 0xFF ),
+	OLD_SOGDIAN     = ( u32('S') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+	SOGDIAN         = ( u32('S') & 0xFF ) << 24 | ( u32('o') & 0xFF ) << 16 | ( u32('g') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+
+	// 2.4.0
+	// 12.0
+	ELYMAIC                = ( u32('E') & 0xFF ) << 24 | ( u32('l') & 0xFF ) << 16 | ( u32('y') & 0xFF ) << 8 | ( u32('m') & 0xFF ),
+	NANDINAGARI            = ( u32('N') & 0xFF ) << 24 | ( u32('a') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('d') & 0xFF ),
+	NYIAKENG_PUACHUE_HMONG = ( u32('H') & 0xFF ) << 24 | ( u32('m') & 0xFF ) << 16 | ( u32('n') & 0xFF ) << 8 | ( u32('p') & 0xFF ),
+	WANCHO                 = ( u32('W') & 0xFF ) << 24 | ( u32('c') & 0xFF ) << 16 | ( u32('h') & 0xFF ) << 8 | ( u32('o') & 0xFF ),
+
+	// 2.6.7
+	// 13.0
+	CHRASMIAN           = ( u32('C') & 0xFF ) << 24 | ( u32('h') & 0xFF ) << 16 | ( u32('r') & 0xFF ) << 8 | ( u32('s') & 0xFF ),
+	DIVES_AKURU         = ( u32('D') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('a') & 0xFF ) << 8 | ( u32('k') & 0xFF ),
+	KHITAN_SMALL_SCRIPT = ( u32('K') & 0xFF ) << 24 | ( u32('i') & 0xFF ) << 16 | ( u32('t') & 0xFF ) << 8 | ( u32('s') & 0xFF ),
+	YEZIDI              = ( u32('Y') & 0xFF ) << 24 | ( u32('e') & 0xFF ) << 16 | ( u32('z') & 0xFF ) << 8 | ( u32('i') & 0xFF ),
+
+	INVALID= 0,
+}
+
+Memory_Mode :: enum c.int {
+	DUPLICATE,
+	READONLY,
+	WRITABLE,
+	READONLY_MAY_MAKE_WRITABLE,
+}
+
+Destroy_Func :: proc "c" ( user_data : rawptr )
+
+@(default_calling_convention="c", link_prefix="hb_")
+foreign harfbuzz
+{
+	blob_create  :: proc( data : [^]u8, length : c.uint, memory_mode : Memory_Mode, user_data : rawptr, destroy : Destroy_Func ) -> Blob ---
+	blob_destroy :: proc( blob : Blob ) ---
+
+	buffer_create              :: proc() -> Buffer ---
+	buffer_destroy             :: proc( buffer : Buffer ) ---
+	buffer_add                 :: proc( buffer : Buffer, codepoint : Codepoint, cluster : c.uint ) ---
+	buffer_clear_contents      :: proc( buffer : Buffer ) ---
+	buffer_get_glyph_infos     :: proc( buffer : Buffer, length       : ^c.uint ) -> [^]Glyph_Info ---
+	buffer_get_glyph_positions :: proc( buffer : Buffer, length       : ^c.uint ) -> [^]Glyph_Position ---
+	buffer_set_direction       :: proc( buffer : Buffer, direction    : Direction ) ---
+	buffer_set_language        :: proc( buffer : Buffer, language     : Language ) ---
+	buffer_set_script          :: proc( buffer : Buffer, script       : Script ) ---
+	buffer_set_content_type    :: proc( buffer : Buffer, content_type : Buffer_Content_Type ) ---
+
+	face_create  :: proc( blob : Blob, index : c.uint ) -> Face ---
+	face_destroy :: proc( face : Face ) ---
+
+	font_create  :: proc( face : Face ) -> Font ---
+	font_destroy :: proc( font : Font ) ---
+
+	language_get_default :: proc() -> Language ---
+
+	script_get_horizontal_direction :: proc( script : Script ) -> Direction ---
+
+	shape :: proc( font : Font, buffer : Buffer, features : [^]Feature, num_features : c.uint ) ---
+
+	unicode_funcs_get_default :: proc() -> Unicode_Funcs ---
+	unicode_script            :: proc( ufuncs : Unicode_Funcs, unicode : Codepoint ) -> Script ---
+}

thirdparty/harfbuzz/scripts/build.ps1

@@ -0,0 +1,305 @@
+$misc = join-path $PSScriptRoot 'helpers/misc.ps1'
+. $misc
+
+$path_root  = git rev-parse --show-toplevel
+$path_lib   = join-path $path_root 'lib'
+$path_win64 = join-path $path_lib  'win64'
+
+$url_harfbuzz  = 'https://github.com/harfbuzz/harfbuzz.git'
+$path_harfbuzz = join-path $path_root 'harfbuzz'
+
+function build-repo {
+	verify-path $script:path_lib
+	verify-path $path_win64
+
+	clone-gitrepo $path_harfbuzz $url_harfbuzz
+
+	push-location $path_harfbuzz
+
+    $library_type = "shared"
+    $build_type   = "release"
+
+    # Meson configure and build
+    $mesonArgs = @(
+        "build",
+        "--default-library=$library_type",
+        "--buildtype=$build_type",
+        "--wrap-mode=forcefallback",
+        "-Dglib=disabled",
+        "-Dgobject=disabled",
+        "-Dcairo=disabled",
+        "-Dicu=disabled",
+        "-Dgraphite=disabled",
+        "-Dfreetype=disabled",
+        "-Ddirectwrite=disabled",
+        "-Dcoretext=disabled"
+    )
+    & meson $mesonArgs
+	& meson compile -C build
+
+	pop-location
+
+	$path_build      = join-path $path_harfbuzz 'build'
+	$path_src        = join-path $path_build    'src'
+	$path_dll        = join-path $path_src      'harfbuzz.dll'
+	$path_lib        = join-path $path_src      'harfbuzz.lib'
+	$path_lib_static = join-path $path_src      'libharfbuzz.a'
+	$path_pdb        = join-path $path_src      'harfbuzz.pdb'
+
+	# Copy files based on build type and library type
+	if ($build_type -eq "debug") {
+		copy-item -Path $path_pdb -Destination $path_win64 -Force
+	}
+
+	if ($library_type -eq "static") {
+		copy-item -Path $path_lib_static -Destination (join-path $path_win64 'harfbuzz.lib') -Force
+	}
+	else {
+		copy-item -Path $path_lib -Destination $path_win64 -Force
+		copy-item -Path $path_dll -Destination $path_win64 -Force
+	}
+
+	write-host "Build completed and files copied to $path_win64"
+}
+# build-repo
+
+function Build-RepoWithoutMeson {
+    $devshell = join-path $PSScriptRoot 'helpers/devshell.ps1'
+    & $devshell -arch amd64
+
+    verify-path $script:path_lib
+    verify-path $path_win64
+
+    clone-gitrepo $path_harfbuzz $url_harfbuzz
+
+    $path_harfbuzz_build = join-path $path_harfbuzz 'build'
+    verify-path $path_harfbuzz_build
+
+    $library_type = "shared"
+    $build_type   = "release"
+
+    push-location $path_harfbuzz
+
+    $compiler_args = @(
+        "/nologo",
+        "/W3",
+        "/D_CRT_SECURE_NO_WARNINGS",
+        "/DHAVE_FALLBACK=1",
+        "/DHAVE_OT=1",
+        "/DHAVE_SUBSET=1",
+        "/DHB_USE_INTERNAL_PARSER",
+        "/DHB_NO_COLOR",
+        "/DHB_NO_DRAW",
+        "/DHB_NO_PARSE",
+        "/DHB_NO_MT",
+        "/DHB_NO_GRAPHITE2",
+        "/DHB_NO_ICU",
+        "/DHB_NO_DIRECTWRITE",
+        "/I$path_harfbuzz\src",
+        "/I$path_harfbuzz"
+    )
+
+    if ( $library_type -eq "shared" ) {
+        $compiler_args += "/DHAVE_DECLSPEC"
+        $compiler_args += "/DHARFBUZZ_EXPORTS"
+    }
+
+    if ($build_type -eq "debug") {
+        $compiler_args += "/MDd", "/Od", "/Zi"
+    } else {
+        $compiler_args += "/MD", "/O2"
+    }
+
+    $compiler_args = $compiler_args -join " "
+
+    $config_h_content = @"
+#define HB_VERSION_MAJOR 9
+#define HB_VERSION_MINOR 0
+#define HB_VERSION_MICRO 0
+#define HB_VERSION_STRING "9.0.0"
+#define HAVE_ROUND 1
+#define HB_NO_BITMAP 1
+#define HB_NO_CFF 1
+#define HB_NO_OT_FONT_CFF 1
+#define HB_NO_SUBSET_CFF 1
+#define HB_HAVE_SUBSET 0
+#define HB_HAVE_OT 0
+#define HB_USER_DATA_KEY_DEFINE1(_name) extern HB_EXTERN hb_user_data_key_t _name
+"@
+    set-content -Path (join-path $path_harfbuzz "config.h") -Value $config_h_content
+
+    $unity_content = @"
+#define HB_EXTERN __declspec(dllexport)
+
+// base
+#include "config.h"
+#include "hb-aat-layout.cc"
+#include "hb-aat-map.cc"
+#include "hb-blob.cc"
+#include "hb-buffer-serialize.cc"
+#include "hb-buffer-verify.cc"
+#include "hb-buffer.cc"
+#include "hb-common.cc"
+
+//#include "hb-draw.cc"
+//#include "hb-paint.cc"
+//#include "hb-paint-extents.cc"
+
+#include "hb-face.cc"
+#include "hb-face-builder.cc"
+#include "hb-fallback-shape.cc"
+#include "hb-font.cc"
+#include "hb-map.cc"
+#include "hb-number.cc"
+#include "hb-ot-cff1-table.cc"
+#include "hb-ot-cff2-table.cc"
+#include "hb-ot-color.cc"
+#include "hb-ot-face.cc"
+#include "hb-ot-font.cc"
+
+#include "hb-outline.cc"
+#include "OT/Var/VARC/VARC.cc"
+
+#include "hb-ot-layout.cc"
+#include "hb-ot-map.cc"
+#include "hb-ot-math.cc"
+#include "hb-ot-meta.cc"
+#include "hb-ot-metrics.cc"
+#include "hb-ot-name.cc"
+
+#include "hb-ot-shaper-arabic.cc"
+#include "hb-ot-shaper-default.cc"
+#include "hb-ot-shaper-hangul.cc"
+#include "hb-ot-shaper-hebrew.cc"
+#include "hb-ot-shaper-indic-table.cc"
+#include "hb-ot-shaper-indic.cc"
+#include "hb-ot-shaper-khmer.cc"
+#include "hb-ot-shaper-myanmar.cc"
+#include "hb-ot-shaper-syllabic.cc"
+#include "hb-ot-shaper-thai.cc"
+#include "hb-ot-shaper-use.cc"
+#include "hb-ot-shaper-vowel-constraints.cc"
+
+#include "hb-ot-shape-fallback.cc"
+#include "hb-ot-shape-normalize.cc"
+#include "hb-ot-shape.cc"
+#include "hb-ot-tag.cc"
+#include "hb-ot-var.cc"
+
+#include "hb-set.cc"
+#include "hb-shape-plan.cc"
+#include "hb-shape.cc"
+#include "hb-shaper.cc"
+#include "hb-static.cc"
+#include "hb-style.cc"
+#include "hb-ucd.cc"
+#include "hb-unicode.cc"
+
+// libharfbuzz-subset
+//#include "hb-subset-input.cc"
+//#include "hb-subset-cff-common.cc"
+//#include "hb-subset-cff1.cc"
+//#include "hb-subset-cff2.cc"
+//#include "hb-subset-instancer-iup.cc"
+//#include "hb-subset-instancer-solver.cc"
+//#include "hb-subset-plan.cc"
+//#include "hb-subset-repacker.cc"
+
+//#include "graph/gsubgpos-context.cc"
+
+//#include "hb-subset.cc"
+"@
+    $unity_file = join-path $path_harfbuzz_build "harfbuzz_unity.cc"
+    set-content -Path $unity_file -Value $unity_content
+
+    # Compile unity file
+    $obj_file = "harfbuzz_unity.obj"
+    $command  = "cl.exe $compiler_args /c $unity_file /Fo$path_harfbuzz_build\$obj_file"
+
+    write-host "Compiling: $command"
+    invoke-expression $command
+
+    if ($LASTEXITCODE -ne 0) {
+        write-error "Compilation failed for unity build"
+        pop-location
+        return
+    }
+
+    push-location $path_harfbuzz_build
+
+    # Create library
+    if ($library_type -eq "static")
+    {
+        $lib_command = "lib.exe /OUT:harfbuzz.lib $obj_file"
+
+        write-host "Creating static library: $lib_command"
+        invoke-expression $lib_command
+
+        if ($LASTEXITCODE -ne 0) {
+            Write-Error "Static library creation failed"
+            pop-location
+            pop-location
+            return
+        }
+        $output_file = "harfbuzz.lib"
+    }
+    else
+    {
+        $linker_args = "/DLL", "/OUT:harfbuzz.dll"
+
+        if ($build_type -eq "debug") {
+            $linker_args += "/DEBUG"
+        }
+
+        $link_command = "link.exe $($linker_args -join ' ') $obj_file"
+
+        write-host "Creating shared library: $link_command"
+        invoke-expression $link_command
+
+        if ($LASTEXITCODE -ne 0) {
+            write-error "Shared library creation failed"
+            pop-location
+            pop-location
+            return
+        }
+        $output_file = "harfbuzz.dll"
+    }
+
+    pop-location # path_harfbuzz_build
+    pop-location # path_harfbuzz
+
+    # Copy files
+    $path_output = join-path $path_harfbuzz_build $output_file
+
+    if (test-path $path_output) {
+        copy-item -Path $path_output -Destination $path_win64 -Force
+        if ($library_type -eq "shared") {
+            $path_lib = join-path $path_harfbuzz_build "harfbuzz.lib"
+            if (test-path $path_lib) {
+                copy-item -Path $path_lib -Destination $path_win64 -Force
+            }
+        }
+    } else {
+        write-warning "Output file not found: $path_output"
+    }
+
+    write-host "Build completed and files copied to $path_win64"
+}
+Build-RepoWithoutMeson
+
+function grab-binaries {
+	verify-path $script:path_lib
+	verify-path $path_win64
+
+	$url_harfbuzz_8_5_0_win64 = 'https://github.com/harfbuzz/harfbuzz/releases/latest/download/harfbuzz-win64-8.5.0.zip'
+	$path_harfbuzz_win64_zip  = join-path $path_win64 'harfbuzz-win64-8.5.0.zip'
+	$path_harfbuzz_win64      = join-path $path_win64 'harfbuzz-win64'
+
+	grab-zip $url_harfbuzz_8_5_0_win64 $path_harfbuzz_win64_zip $path_win64
+	get-childitem -path $path_harfbuzz_win64 | move-item -destination $path_win64 -force
+
+	# Clean up the ZIP file and the now empty harfbuzz-win64 directory
+	remove-item $path_harfbuzz_win64_zip -force
+	remove-item $path_harfbuzz_win64 -recurse -force
+}
+# grab-binaries

thirdparty/harfbuzz/scripts/build.sh

@@ -0,0 +1,284 @@
+#!/bin/bash
+
+# Source the misc.sh script
+misc_script="$(dirname "$0")/helpers/misc.sh"
+chmod +x "$misc_script"
+source "$misc_script"
+
+path_root=$(git rev-parse --show-toplevel)
+path_lib="$path_root/lib"
+path_osx="$path_lib/osx"
+path_linux64="$path_lib/linux64"
+
+OS=$(uname -s)
+
+# Set the appropriate output directory and file extension
+case "$OS" in
+    Darwin*)
+        path_output="$path_osx"
+        shared_lib_extension="dylib"
+        ;;
+    Linux*)
+        path_output="$path_linux64"
+        shared_lib_extension="so"
+        ;;
+    *)
+        echo "Unsupported operating system: $OS"
+        exit 1
+        ;;
+esac
+
+url_harfbuzz='https://github.com/harfbuzz/harfbuzz.git'
+path_harfbuzz="$path_root/harfbuzz"
+
+build_repo() {
+    verify_path "$path_lib"
+    verify_path "$path_output"
+
+    # grab the actual repo
+    clone_gitrepo "$path_harfbuzz" "$url_harfbuzz"
+
+    pushd "$path_harfbuzz" > /dev/null
+
+    library_type="shared"
+    build_type="release"
+
+    # Check if meson is installed
+    if ! command -v meson &> /dev/null; then
+        echo "Meson is not installed. Please install it and try again."
+        exit 1
+    fi
+
+    # Meson configure and build
+    meson_args=(
+        "build"
+        "--default-library=$library_type"
+        "--buildtype=$build_type"
+        "--wrap-mode=forcefallback"
+        "-Dglib=disabled"
+        "-Dgobject=disabled"
+        "-Dcairo=disabled"
+        "-Dicu=disabled"
+        "-Dgraphite=disabled"
+        "-Dfreetype=disabled"
+        "-Ddirectwrite=disabled"
+        "-Dcoretext=disabled"
+    )
+    meson "${meson_args[@]}"
+    ninja -C build
+
+    popd > /dev/null
+
+    path_build="$path_harfbuzz/build"
+    path_src="$path_build/src"
+    path_so="$path_src/libharfbuzz.so"
+    path_a="$path_src/libharfbuzz.a"
+
+    # Copy files based on build type and library type
+    if [ "$build_type" = "debug" ]; then
+        # Debug symbols are typically embedded in the .so file on Linux
+        # If there's a separate debug file, you would copy it here
+        :
+    fi
+
+    if [ "$library_type" = "static" ]; then
+        cp "$path_a" "$path_linux64/libharfbuzz.a"
+    else
+        cp "$path_so" "$path_linux64/libharfbuzz.so"
+    fi
+
+    echo "Build completed and files copied to $path_linux64"
+}
+
+build_repo_without_meson() {
+    # Detect the operating system
+    OS=$(uname -s)
+
+    echo $url_harfbuzz
+    echo $path_harfbuzz
+    echo $path_lib
+    echo $path_linux64
+    verify_path "$path_lib"
+    verify_path "$path_linux64"
+
+    path_harfbuzz_build="$path_harfbuzz/build"
+    echo $path_harfbuzz_build
+
+    # grab the actual repo
+    clone_gitrepo "$path_harfbuzz" "$url_harfbuzz"
+
+    verify_path "$path_harfbuzz_build"
+  
+    library_type="shared"
+    build_type="release"
+
+    pushd "$path_harfbuzz" > /dev/null
+
+    # Determine the latest C++ standard supported by the compiler
+    latest_cpp_standard=$(clang++ -dM -E - < /dev/null | grep __cplusplus | awk '{print $3}')
+    case $latest_cpp_standard in
+        201703L) cpp_flag="-std=c++17" ;;
+        202002L) cpp_flag="-std=c++20" ;;
+        202302L) cpp_flag="-std=c++23" ;;
+        *) cpp_flag="-std=c++14" ;; # Default to C++14 if unable to determine
+    esac
+    echo "Using C++ standard: $cpp_flag"
+
+    compiler_args=(
+        "$cpp_flag"
+        "-Wall"
+        "-Wextra"
+        "-D_REENTRANT"
+        "-DHAVE_FALLBACK=1"
+        "-DHAVE_OT=1"
+        "-DHAVE_SUBSET=1"
+        "-DHB_USE_INTERNAL_PARSER"
+        "-DHB_NO_COLOR"
+        "-DHB_NO_DRAW"
+        "-DHB_NO_PARSE"
+        "-DHB_NO_MT"
+        "-DHB_NO_GRAPHITE2"
+        "-DHB_NO_ICU"
+        "-DHB_NO_DIRECTWRITE"
+        "-I$path_harfbuzz/src"
+        "-I$path_harfbuzz"
+    )
+
+    if [ "$library_type" = "shared" ]; then
+        compiler_args+=("-fPIC")
+        compiler_args+=("-DHAVE_DECLSPEC")
+        compiler_args+=("-DHARFBUZZ_EXPORTS")
+    fi
+
+    if [ "$build_type" = "debug" ]; then
+        compiler_args+=("-g" "-O0")
+    else
+        compiler_args+=("-O2")
+    fi
+
+    compiler_args_str="${compiler_args[*]}"
+
+    # Create config.h
+    cat > "$path_harfbuzz/config.h" << EOL
+#define HB_VERSION_MAJOR 9
+#define HB_VERSION_MINOR 0
+#define HB_VERSION_MICRO 0
+#define HB_VERSION_STRING "9.0.0"
+#define HAVE_ROUND 1
+#define HB_NO_BITMAP 1
+#define HB_NO_CFF 1
+#define HB_NO_OT_FONT_CFF 1
+#define HB_NO_SUBSET_CFF 1
+#define HB_HAVE_SUBSET 0
+#define HB_HAVE_OT 0
+#define HB_USER_DATA_KEY_DEFINE1(_name) extern HB_EXTERN hb_user_data_key_t _name
+EOL
+
+    # Create unity build file
+    cat > "$path_harfbuzz_build/harfbuzz_unity.cc" << EOL
+#define HB_EXTERN __attribute__((visibility("default")))
+
+// base
+#include "config.h"
+#include "hb-aat-layout.cc"
+#include "hb-aat-map.cc"
+#include "hb-blob.cc"
+#include "hb-buffer-serialize.cc"
+#include "hb-buffer-verify.cc"
+#include "hb-buffer.cc"
+#include "hb-common.cc"
+#include "hb-face.cc"
+#include "hb-face-builder.cc"
+#include "hb-fallback-shape.cc"
+#include "hb-font.cc"
+#include "hb-map.cc"
+#include "hb-number.cc"
+#include "hb-ot-cff1-table.cc"
+#include "hb-ot-cff2-table.cc"
+#include "hb-ot-color.cc"
+#include "hb-ot-face.cc"
+#include "hb-ot-font.cc"
+#include "hb-outline.cc"
+#include "OT/Var/VARC/VARC.cc"
+#include "hb-ot-layout.cc"
+#include "hb-ot-map.cc"
+#include "hb-ot-math.cc"
+#include "hb-ot-meta.cc"
+#include "hb-ot-metrics.cc"
+#include "hb-ot-name.cc"
+#include "hb-ot-shaper-arabic.cc"
+#include "hb-ot-shaper-default.cc"
+#include "hb-ot-shaper-hangul.cc"
+#include "hb-ot-shaper-hebrew.cc"
+#include "hb-ot-shaper-indic-table.cc"
+#include "hb-ot-shaper-indic.cc"
+#include "hb-ot-shaper-khmer.cc"
+#include "hb-ot-shaper-myanmar.cc"
+#include "hb-ot-shaper-syllabic.cc"
+#include "hb-ot-shaper-thai.cc"
+#include "hb-ot-shaper-use.cc"
+#include "hb-ot-shaper-vowel-constraints.cc"
+#include "hb-ot-shape-fallback.cc"
+#include "hb-ot-shape-normalize.cc"
+#include "hb-ot-shape.cc"
+#include "hb-ot-tag.cc"
+#include "hb-ot-var.cc"
+#include "hb-set.cc"
+#include "hb-shape-plan.cc"
+#include "hb-shape.cc"
+#include "hb-shaper.cc"
+#include "hb-static.cc"
+#include "hb-style.cc"
+#include "hb-ucd.cc"
+#include "hb-unicode.cc"
+EOL
+
+    # Compile unity file
+    pushd "$path_harfbuzz_build" > /dev/null
+    g++ $compiler_args_str -c harfbuzz_unity.cc -o harfbuzz_unity.o
+
+    if [ $? -ne 0 ]; then
+        echo "Compilation failed for unity build"
+        popd > /dev/null
+        popd > /dev/null
+        return 1
+    fi
+
+    # Create library
+    if [ "$library_type" = "static" ]; then
+        ar rcs libharfbuzz.a harfbuzz_unity.o
+        if [ $? -ne 0 ]; then
+            echo "Static library creation failed"
+            popd > /dev/null
+            popd > /dev/null
+            return 1
+        fi
+        output_file="libharfbuzz.a"
+    else
+        g++ -shared -o libharfbuzz.so harfbuzz_unity.o
+        if [ $? -ne 0 ]; then
+            echo "Shared library creation failed"
+            popd > /dev/null
+            popd > /dev/null
+            return 1
+        fi
+        output_file="libharfbuzz.so"
+    fi
+
+    popd > /dev/null  # path_harfbuzz_build
+    popd > /dev/null  # path_harfbuzz
+
+    # Copy files
+    cp "$path_harfbuzz_build/$output_file" "$path_linux64/"
+    if [ "$library_type" = "shared" ]; then
+        if [ -f "$path_harfbuzz_build/libharfbuzz.so" ]; then
+            cp "$path_harfbuzz_build/libharfbuzz.so" "$path_linux64/"
+        fi
+    fi
+
+    echo "Build completed and files copied to $path_linux64"
+}
+
+# Uncomment the function you want to use
+# build_repo
+build_repo_without_meson

thirdparty/harfbuzz/scripts/helpers/devshell.ps1

@@ -0,0 +1,28 @@
+if ($env:VCINSTALLDIR) {
+    return
+}
+
+$ErrorActionPreference = "Stop"
+
+# Use vswhere to find the latest Visual Studio installation
+$vswhere_out = & "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" -latest -property installationPath
+if ($null -eq $vswhere_out) {
+    Write-Host "ERROR: Visual Studio installation not found"
+    exit 1
+}
+
+# Find Launch-VsDevShell.ps1 in the Visual Studio installation
+$vs_path     = $vswhere_out
+$vs_devshell = Join-Path $vs_path "\Common7\Tools\Launch-VsDevShell.ps1"
+
+if ( -not (Test-Path $vs_devshell) ) {
+    Write-Host "ERROR: Launch-VsDevShell.ps1 not found in Visual Studio installation"
+    Write-Host Tested path: $vs_devshell
+    exit 1
+}
+
+# Launch the Visual Studio Developer Shell
+Push-Location
+write-host @args
+& $vs_devshell @args
+Pop-Location

thirdparty/harfbuzz/scripts/helpers/misc.ps1

@@ -0,0 +1,72 @@
+function Clone-Gitrepo { param( [string] $path, [string] $url )
+	if (test-path $path) {
+		# git -C $path pull
+	}
+	else {
+		Write-Host "Cloning $url ..."
+		git clone $url $path
+	}
+}
+
+function Grab-Zip { param( $url, $path_file, $path_dst )
+	Invoke-WebRequest -Uri  $url       -OutFile         $path_file
+	Expand-Archive    -Path $path_file -DestinationPath $path_dst -Force
+}
+
+function Update-GitRepo
+{
+	param( [string] $path, [string] $url, [string] $build_command )
+
+	if ( $build_command -eq $null ) {
+		write-host "Attempted to call Update-GitRepo without build_command specified"
+		return
+	}
+
+	$repo_name = $url.Split('/')[-1].Replace('.git', '')
+
+	$last_built_commit = join-path $path_build "last_built_commit_$repo_name.txt"
+	if ( -not(test-path -Path $path))
+	{
+		write-host "Cloining repo from $url to $path"
+		git clone $url $path
+
+		write-host "Building $url"
+		push-location $path
+		& "$build_command"
+		pop-location
+
+		git -C $path rev-parse HEAD | out-file $last_built_commit
+		$script:binaries_dirty = $true
+		write-host
+		return
+	}
+
+	git -C $path fetch
+	$latest_commit_hash = git -C $path rev-parse '@{u}'
+	$last_built_hash    = if (Test-Path $last_built_commit) { Get-Content $last_built_commit } else { "" }
+
+	if ( $latest_commit_hash -eq $last_built_hash ) {
+		write-host
+		return
+	}
+
+	write-host "Build out of date for: $path, updating"
+	write-host 'Pulling...'
+	git -C $path pull
+
+	write-host "Building $url"
+	push-location $path
+	& $build_command
+	pop-location
+
+	$latest_commit_hash | out-file $last_built_commit
+	$script:binaries_dirty = $true
+	write-host
+}
+
+function Verify-Path { param( $path )
+	if (test-path $path) {return $true}
+
+	new-item -ItemType Directory -Path $path
+	return $false
+}

thirdparty/harfbuzz/scripts/helpers/misc.sh

@@ -0,0 +1,111 @@
+#!/bin/bash
+
+clone_gitrepo() {
+    local path="$1"
+    local url="$2"
+
+    if [ -d "$path" ]; then
+        # git -C "$path" pull
+        :
+    else
+        echo "Cloning $url ..."
+        git clone "$url" "$path"
+    fi
+}
+
+get_ini_content() {
+    local path_file="$1"
+    declare -A ini
+
+    local current_section=""
+    while IFS= read -r line; do
+        if [[ $line =~ ^\[(.+)\]$ ]]; then
+            current_section="${BASH_REMATCH[1]}"
+            ini["$current_section"]=""
+        elif [[ $line =~ ^([^=]+)=(.*)$ ]]; then
+            local key="${BASH_REMATCH[1]}"
+            local value="${BASH_REMATCH[2]}"
+            if [ -n "$current_section" ]; then
+                ini["$current_section,$key"]="$value"
+            fi
+        fi
+    done < "$path_file"
+
+    # To use this function, you would need to pass the result by reference
+    # and then access it in the calling function
+}
+
+invoke_with_color_coded_output() {
+    local command="$1"
+    eval "$command" 2>&1 | while IFS= read -r line; do
+        if [[ "$line" =~ [Ee]rror ]]; then
+            echo -e "\033[0;31m\t$line\033[0m"  # Red for errors
+        elif [[ "$line" =~ [Ww]arning ]]; then
+            echo -e "\033[0;33m\t$line\033[0m"  # Yellow for warnings
+        else
+            echo -e "\033[0;37m\t$line\033[0m"  # White for other output
+        fi
+    done
+}
+
+update_git_repo() {
+    local path="$1"
+    local url="$2"
+    local build_command="$3"
+
+    if [ -z "$build_command" ]; then
+        echo "Attempted to call update_git_repo without build_command specified"
+        return
+    fi
+
+    local repo_name=$(basename "$url" .git)
+
+    local last_built_commit="$path_build/last_built_commit_$repo_name.txt"
+    if [ ! -d "$path" ]; then
+        echo "Cloning repo from $url to $path"
+        git clone "$url" "$path"
+
+        echo "Building $url"
+        pushd "$path" > /dev/null
+        eval "$build_command"
+        popd > /dev/null
+
+        git -C "$path" rev-parse HEAD > "$last_built_commit"
+        binaries_dirty=true
+        echo
+        return
+    fi
+
+    git -C "$path" fetch
+    local latest_commit_hash=$(git -C "$path" rev-parse '@{u}')
+    local last_built_hash=""
+    [ -f "$last_built_commit" ] && last_built_hash=$(cat "$last_built_commit")
+
+    if [ "$latest_commit_hash" = "$last_built_hash" ]; then
+        echo
+        return
+    fi
+
+    echo "Build out of date for: $path, updating"
+    echo 'Pulling...'
+    git -C "$path" pull
+
+    echo "Building $url"
+    pushd "$path" > /dev/null
+    eval "$build_command"
+    popd > /dev/null
+
+    echo "$latest_commit_hash" > "$last_built_commit"
+    binaries_dirty=true
+    echo
+}
+
+verify_path() {
+    local path="$1"
+    if [ -d "$path" ]; then
+        return 0
+    fi
+
+    mkdir -p "$path"
+    return 1
+}

thirdparty/sokol-tools/.gitignore

@@ -0,0 +1,4 @@
+.vscode/
+.zig-cache/
+zig-out/
+*.pyc

thirdparty/sokol-tools/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Andre Weissflog
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

thirdparty/sokol-tools/README.md

@@ -0,0 +1,2 @@
+# sokol-tools-bin
+Binaries and fips integration for https://github.com/floooh/sokol-tools

thirdparty/sokol-tools/bin/linux/readme.txt

@@ -0,0 +1,2 @@
+Precompiled binaries for Linux go here (64-bit statically linked).
+

thirdparty/sokol-tools/bin/osx/readme.txt

@@ -0,0 +1,2 @@
+Precompiled binaries for macOS go here.
+

thirdparty/sokol-tools/bin/win32/readme.txt

@@ -0,0 +1,2 @@
+Precompiled binaries for Windows (64-bit) go here.
+

thirdparty/sokol-tools/build.zig

@@ -0,0 +1,143 @@
+//! Helper code to invoke sokol-shdc from the Zig build system.
+//! See https://github.com/floooh/sokol-zig for an example
+//! of how to use sokol-tools-bin as a lazy dependency and
+//! compile shaders (search for `shdc.compile` in the sokol-zig build.zig)
+const std = @import("std");
+const builtin = @import("builtin");
+const Allocator = std.mem.Allocator;
+const Build = std.Build;
+
+pub const Options = struct {
+    dep_shdc: *Build.Dependency,
+    input: Build.LazyPath,
+    output: Build.LazyPath,
+    slang: Slang,
+    format: Format = .sokol_zig,
+    tmp_dir: ?Build.LazyPath = null,
+    defines: ?[][]const u8 = null,
+    module: ?[]const u8 = null,
+    reflection: bool = false,
+    bytecode: bool = false,
+    dump: bool = false,
+    genver: ?[]const u8 = null,
+    ifdef: bool = false,
+    noifdef: bool = false,
+    save_intermediate_spirv: bool = false,
+    no_log_cmdline: bool = true,
+};
+
+pub fn compile(b: *Build, opts: Options) !*Build.Step.Run {
+    const shdc_path = try getShdcLazyPath(opts.dep_shdc);
+    const args = try optsToArgs(opts, b, shdc_path);
+    var step = b.addSystemCommand(args);
+    step.addFileArg(opts.input);
+    return step;
+}
+
+/// target shader languages
+/// NOTE: make sure that field names match the cmdline arg string
+pub const Slang = packed struct(u10) {
+    glsl410: bool = false,
+    glsl430: bool = false,
+    glsl300es: bool = false,
+    glsl310es: bool = false,
+    hlsl4: bool = false,
+    hlsl5: bool = false,
+    metal_macos: bool = false,
+    metal_ios: bool = false,
+    metal_sim: bool = false,
+    wgsl: bool = false,
+};
+
+fn slangToString(slang: Slang, a: Allocator) ![]const u8 {
+    var strings: [16][]const u8 = undefined;
+    var num_strings: usize = 0;
+    inline for (std.meta.fields(Slang)) |field| {
+        if (@field(slang, field.name)) {
+            strings[num_strings] = field.name;
+            num_strings += 1;
+        }
+    }
+    return std.mem.join(a, ":", strings[0..num_strings]);
+}
+
+/// the code-generation target language
+/// NOTE: make sure that the item names match the cmdline arg string
+pub const Format = enum {
+    sokol,
+    sokol_impl,
+    sokol_zig,
+    sokol_nim,
+    sokol_odin,
+    sokol_rust,
+    sokol_d,
+    sokol_jai,
+};
+
+fn formatToString(f: Format) []const u8 {
+    return @tagName(f);
+}
+
+fn getShdcLazyPath(dep_shdc: *Build.Dependency) !Build.LazyPath {
+    const intel = builtin.cpu.arch.isX86();
+    const opt_sub_path: ?[]const u8 = switch (builtin.os.tag) {
+        .windows => "bin/win32/sokol-shdc.exe",
+        .linux => if (intel) "bin/linux/sokol-shdc" else "bin/linux_arm64/sokol-shdc",
+        .macos => if (intel) "bin/osx/sokol-shdc" else "bin/osx_arm64/sokol-shdc",
+        else => null,
+    };
+    if (opt_sub_path) |sub_path| {
+        return dep_shdc.path(sub_path);
+    } else {
+        return error.ShdcUnsupportedPlatform;
+    }
+}
+
+fn optsToArgs(opts: Options, b: *Build, tool_path: Build.LazyPath) ![]const []const u8 {
+    const a = b.allocator;
+    var arr: std.ArrayListUnmanaged([]const u8) = .empty;
+    try arr.append(a, tool_path.getPath(b));
+    try arr.appendSlice(a, &.{ "-o", opts.output.getPath(b) });
+    try arr.appendSlice(a, &.{ "-l", try slangToString(opts.slang, a) });
+    try arr.appendSlice(a, &.{ "-f", formatToString(opts.format) });
+    if (opts.tmp_dir) |tmp_dir| {
+        try arr.appendSlice(a, &.{ "--tmpdir", tmp_dir.getPath(b) });
+    }
+    if (opts.defines) |defines| {
+        try arr.appendSlice(a, &.{ "--defines", try std.mem.join(a, ":", defines) });
+    }
+    if (opts.module) |module| {
+        try arr.appendSlice(a, &.{ "--module", b.dupe(module) });
+    }
+    if (opts.reflection) {
+        try arr.append(a, "--reflection");
+    }
+    if (opts.bytecode) {
+        try arr.append(a, "--bytecode");
+    }
+    if (opts.dump) {
+        try arr.append(a, "--dump");
+    }
+    if (opts.genver) |genver| {
+        try arr.appendSlice(a, &.{ "--genver", b.dupe(genver) });
+    }
+    if (opts.ifdef) {
+        try arr.append(a, "--ifdef");
+    }
+    if (opts.noifdef) {
+        try arr.append(a, "--noifdef");
+    }
+    if (opts.save_intermediate_spirv) {
+        try arr.append(a, "--save-intermediate-spirv");
+    }
+    if (opts.no_log_cmdline) {
+        try arr.append(a, "--no-log-cmdline");
+    }
+    // important: keep this last
+    try arr.append(a, "-i");
+    return arr.toOwnedSlice(a);
+}
+
+pub fn build(b: *Build) void {
+    _ = b;
+}

thirdparty/sokol-tools/build.zig.zon

@@ -0,0 +1,7 @@
+.{
+    .name = .sokolshdc,
+    .fingerprint = 0xe0596dde0e9962af,
+    .version = "0.1.0",
+    .minimum_zig_version = "0.14.0",
+    .paths = .{ "bin", "build.zig", "build.zig.zon" },
+}

thirdparty/sokol-tools/fips-files/generators/SokolShader.py

@@ -0,0 +1,62 @@
+#-------------------------------------------------------------------------------
+#   SokolShader.py
+#
+#   Fips code-generator script for invoking sokol-shdc during the build.
+#
+#   Use the cmake macro 'sokol_shader([glsl-file] [shader-dialects])' inside a
+#   fips target (fips_begin_* / fips_end_*) to hook the code-generation
+#   build job into the build process.
+#-------------------------------------------------------------------------------
+
+Version = 5
+
+import os, platform, subprocess
+import genutil as util
+from mod import log
+
+#-------------------------------------------------------------------------------
+def find_shdc():
+    shdc_path = os.path.dirname(os.path.abspath(__file__))
+    shdc_path += '/../../bin/'
+    if platform.system() == 'Windows':
+        shdc_path += 'win32/'
+    elif platform.system() == 'Darwin':
+        if platform.machine() == 'arm64':
+            shdc_path += 'osx_arm64/'
+        else:
+            shdc_path += 'osx/'
+    elif platform.system() == 'Linux':
+        if platform.machine() in ['aarch64', 'arm64']:
+            shdc_path += 'linux_arm64/'
+        else:
+            shdc_path += 'linux/'
+    else:
+        log.error('Unknown host system {}'.format(platform.system()))
+    return shdc_path + 'sokol-shdc'
+
+#-------------------------------------------------------------------------------
+def generate(input, out_src, out_hdr, args):
+    errfmt = 'msvc' if args['compiler']=='MSVC' else 'gcc'
+    if util.isDirty(Version, [input], [out_hdr]):
+        print('## sokol-shdc: {} {} {}'.format(input, out_hdr, str(args)))
+        cmd = [find_shdc(),
+                '--input', input,
+                '--output', out_hdr,
+                '--slang', args['slang'],
+                '--genver', str(Version),
+                '--errfmt', errfmt,
+                '--format', 'sokol']
+        if 'defines' in args:
+            cmd.extend(['--defines', args['defines']])
+        if 'module' in args:
+            cmd.extend(['--module', args['module']])
+        if 'reflection' in args:
+            if args['reflection']:
+                cmd.extend(['--reflection'])
+        if 'debuggable' in args and args['debuggable']:
+            pass
+        else:
+            cmd.extend(['--bytecode'])
+        res = subprocess.call(cmd)
+        if res != 0:
+            log.error('sokol-shdc returned with error code {}'.format(res))

thirdparty/sokol-tools/fips-files/include.cmake

@@ -0,0 +1,25 @@
+macro(sokol_shader shd slang)
+    set(args "{slang: '${slang}', compiler: '${CMAKE_C_COMPILER_ID}' }")
+    fips_generate(TYPE SokolShader FROM ${shd} HEADER ${shd}.h OUT_OF_SOURCE ARGS ${args})
+endmacro()
+
+# special version which doesn't generate binary output, this allows shaders to be debugged
+macro(sokol_shader_debuggable shd slang)
+    set(args "{slang: '${slang}', compiler: '${CMAKE_C_COMPILER_ID}', debuggable: true }")
+    fips_generate(TYPE SokolShader FROM ${shd} HEADER ${shd}.h OUT_OF_SOURCE ARGS ${args})
+endmacro()
+
+macro(sokol_shader_variant shd slang module defines)
+    set(args "{slang: '${slang}', compiler: '${CMAKE_C_COMPILER_ID}', defines: '${defines}', module: '${module}' }")
+    fips_generate(TYPE SokolShader FROM ${shd} HEADER ${shd}.${module}.h OUT_OF_SOURCE ARGS ${args})
+endmacro()
+
+macro(sokol_shader_with_reflection shd slang)
+    set(args "{slang: '${slang}', compiler: '${CMAKE_C_COMPILER_ID}', reflection: true }")
+    fips_generate(TYPE SokolShader FROM ${shd} HEADER ${shd}.h OUT_OF_SOURCE ARGS ${args})
+endmacro()
+
+macro(sokol_shader_variant_with_reflection shd slang module defines)
+    set(args "{slang: '${slang}', compiler: '${CMAKE_C_COMPILER_ID}', defines: '${defines}', module: '${module}', reflection: true }")
+    fips_generate(TYPE SokolShader FROM ${shd} HEADER ${shd}.${module}.h OUT_OF_SOURCE ARGS ${args})
+endmacro()

thirdparty/sokol/.gitignore

@@ -0,0 +1,3 @@
+.vscode/
+build/
+ols.json

thirdparty/sokol/CHANGELOG.md

@@ -0,0 +1,12 @@
+## CHANGELOG
+
+> NOTE: this changelog is only for changes to the sokol-odin 'scaffolding'.
+For actual Sokol header changes, see the
+[sokol changelog](https://github.com/floooh/sokol/blob/master/CHANGELOG.md).
+
+### 13-Apr-2024
+
+Merged PR https://github.com/floooh/sokol-odin/pull/11, this changes the
+directory structure of the bindings repository, adds support to build
+the Windows bindings as a DLL and a couple of smaller things
+detailed here: https://github.com/floooh/sokol/pull/1023

thirdparty/sokol/LICENSE

@@ -0,0 +1,22 @@
+zlib/libpng license
+
+Copyright (c) 2022 Andre Weissflog
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the
+use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software in a
+    product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not
+    be misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.

thirdparty/sokol/README.md

@@ -0,0 +1,81 @@
+[![Odin](https://github.com/floooh/sokol-odin/actions/workflows/main.yml/badge.svg)](https://github.com/floooh/sokol-odin/actions/workflows/main.yml)
+
+Auto-generated [Odin](https://github.com/odin-lang/odin) bindings for the [sokol headers](https://github.com/floooh/sokol).
+
+To include sokol in your project you can copy the [sokol](sokol/) directory.
+
+## BUILD
+
+Supported platforms are: Windows, macOS, Linux (with X11)
+
+On Linux install the following packages: libglu1-mesa-dev, mesa-common-dev, xorg-dev, libasound-dev
+(or generally: the dev packages required for X11, GL and ALSA development)
+
+1. First build the required static link libraries:
+
+    ```
+    cd sokol
+    # on macOS:
+    ./build_clibs_macos.sh
+    # on Linux:
+    ./build_clibs_linux.sh
+    # on Windows with MSVC (from a 'Visual Studio Developer Command Prompt')
+    build_clibs_windows.cmd
+    cd ..
+    ```
+
+2. Create a build directory and cd into it:
+    ```
+    mkdir build
+    cd build
+    ```
+
+3. Build and run the samples:
+    ```
+    odin run ../examples/clear -debug
+    odin run ../examples/triangle -debug
+    odin run ../examples/quad -debug
+    odin run ../examples/bufferoffsets -debug
+    odin run ../examples/cube -debug
+    odin run ../examples/noninterleaved -debug
+    odin run ../examples/texcube -debug
+    odin run ../examples/shapes -debug
+    odin run ../examples/offscreen -debug
+    odin run ../examples/instancing -debug
+    odin run ../examples/mrt -debug
+    odin run ../examples/blend -debug
+    odin run ../examples/debugtext -debug
+    odin run ../examples/debugtext-print -debug
+    odin run ../examples/debugtext-userfont -debug
+    odin run ../examples/saudio -debug
+    odin run ../examples/sgl -debug
+    odin run ../examples/sgl-points -debug
+    odin run ../examples/sgl-context -debug
+    odin run ../examples/vertexpull -debug
+    ```
+
+    By default, the backend 3D API will be selected based on the target platform:
+
+    - macOS: Metal
+    - Windows: D3D11
+    - Linux: GL
+
+    To force the GL backend on macOS or Windows, build with ```-define:SOKOL_USE_GL=true```:
+
+    ```
+    odin run ../examples/clear -debug -define:SOKOL_USE_GL=true
+    ```
+
+    The ```clear``` sample prints the selected backend to the terminal:
+
+    ```
+    odin run ../examples/clear -debug -define:SOKOL_USE_GL=true
+    >> using GL backend
+    ```
+
+    On Windows, you can get rid of the automatically opened terminal window
+    by building with the ```-subsystem:windows``` option:
+
+    ```
+    odin build ../examples/clear -subsystem:windows
+    ```

thirdparty/sokol/audio/audio.odin

@@ -0,0 +1,649 @@
+// machine generated, do not edit
+
+package sokol_audio
+
+/*
+
+    sokol_audio.h -- cross-platform audio-streaming API
+
+    Project URL: https://github.com/floooh/sokol
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_AUDIO_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    Optionally provide the following defines with your own implementations:
+
+    SOKOL_DUMMY_BACKEND - use a dummy backend
+    SOKOL_ASSERT(c)     - your own assert macro (default: assert(c))
+    SOKOL_AUDIO_API_DECL- public function declaration prefix (default: extern)
+    SOKOL_API_DECL      - same as SOKOL_AUDIO_API_DECL
+    SOKOL_API_IMPL      - public function implementation prefix (default: -)
+
+    SAUDIO_RING_MAX_SLOTS           - max number of slots in the push-audio ring buffer (default 1024)
+    SAUDIO_OSX_USE_SYSTEM_HEADERS   - define this to force inclusion of system headers on
+                                      macOS instead of using embedded CoreAudio declarations
+
+    If sokol_audio.h is compiled as a DLL, define the following before
+    including the declaration or implementation:
+
+    SOKOL_DLL
+
+    On Windows, SOKOL_DLL will define SOKOL_AUDIO_API_DECL as __declspec(dllexport)
+    or __declspec(dllimport) as needed.
+
+    Link with the following libraries:
+
+    - on macOS: AudioToolbox
+    - on iOS: AudioToolbox, AVFoundation
+    - on FreeBSD: asound
+    - on Linux: asound
+    - on Android: aaudio
+    - on Windows with MSVC or Clang toolchain: no action needed, libs are defined in-source via pragma-comment-lib
+    - on Windows with MINGW/MSYS2 gcc: compile with '-mwin32' and link with -lole32
+
+    FEATURE OVERVIEW
+    ================
+    You provide a mono- or stereo-stream of 32-bit float samples, which
+    Sokol Audio feeds into platform-specific audio backends:
+
+    - Windows: WASAPI
+    - Linux: ALSA
+    - FreeBSD: ALSA
+    - macOS: CoreAudio
+    - iOS: CoreAudio+AVAudioSession
+    - emscripten: WebAudio with ScriptProcessorNode
+    - Android: AAudio
+
+    Sokol Audio will not do any buffer mixing or volume control, if you have
+    multiple independent input streams of sample data you need to perform the
+    mixing yourself before forwarding the data to Sokol Audio.
+
+    There are two mutually exclusive ways to provide the sample data:
+
+    1. Callback model: You provide a callback function, which will be called
+       when Sokol Audio needs new samples. On all platforms except emscripten,
+       this function is called from a separate thread.
+    2. Push model: Your code pushes small blocks of sample data from your
+       main loop or a thread you created. The pushed data is stored in
+       a ring buffer where it is pulled by the backend code when
+       needed.
+
+    The callback model is preferred because it is the most direct way to
+    feed sample data into the audio backends and also has less moving parts
+    (there is no ring buffer between your code and the audio backend).
+
+    Sometimes it is not possible to generate the audio stream directly in a
+    callback function running in a separate thread, for such cases Sokol Audio
+    provides the push-model as a convenience.
+
+    SOKOL AUDIO, SOLOUD AND MINIAUDIO
+    =================================
+    The WASAPI, ALSA and CoreAudio backend code has been taken from the
+    SoLoud library (with some modifications, so any bugs in there are most
+    likely my fault). If you need a more fully-featured audio solution, check
+    out SoLoud, it's excellent:
+
+        https://github.com/jarikomppa/soloud
+
+    Another alternative which feature-wise is somewhere inbetween SoLoud and
+    sokol-audio might be MiniAudio:
+
+        https://github.com/mackron/miniaudio
+
+    GLOSSARY
+    ========
+    - stream buffer:
+        The internal audio data buffer, usually provided by the backend API. The
+        size of the stream buffer defines the base latency, smaller buffers have
+        lower latency but may cause audio glitches. Bigger buffers reduce or
+        eliminate glitches, but have a higher base latency.
+
+    - stream callback:
+        Optional callback function which is called by Sokol Audio when it
+        needs new samples. On Windows, macOS/iOS and Linux, this is called in
+        a separate thread, on WebAudio, this is called per-frame in the
+        browser thread.
+
+    - channel:
+        A discrete track of audio data, currently 1-channel (mono) and
+        2-channel (stereo) is supported and tested.
+
+    - sample:
+        The magnitude of an audio signal on one channel at a given time. In
+        Sokol Audio, samples are 32-bit float numbers in the range -1.0 to
+        +1.0.
+
+    - frame:
+        The tightly packed set of samples for all channels at a given time.
+        For mono 1 frame is 1 sample. For stereo, 1 frame is 2 samples.
+
+    - packet:
+        In Sokol Audio, a small chunk of audio data that is moved from the
+        main thread to the audio streaming thread in order to decouple the
+        rate at which the main thread provides new audio data, and the
+        streaming thread consuming audio data.
+
+    WORKING WITH SOKOL AUDIO
+    ========================
+    First call saudio_setup() with your preferred audio playback options.
+    In most cases you can stick with the default values, these provide
+    a good balance between low-latency and glitch-free playback
+    on all audio backends.
+
+    You should always provide a logging callback to be aware of any
+    warnings and errors. The easiest way is to use sokol_log.h for this:
+
+        #include "sokol_log.h"
+        // ...
+        saudio_setup(&(saudio_desc){
+            .logger = {
+                .func = slog_func,
+            }
+        });
+
+    If you want to use the callback-model, you need to provide a stream
+    callback function either in saudio_desc.stream_cb or saudio_desc.stream_userdata_cb,
+    otherwise keep both function pointers zero-initialized.
+
+    Use push model and default playback parameters:
+
+        saudio_setup(&(saudio_desc){ .logger.func = slog_func });
+
+    Use stream callback model and default playback parameters:
+
+        saudio_setup(&(saudio_desc){
+            .stream_cb = my_stream_callback
+            .logger.func = slog_func,
+        });
+
+    The standard stream callback doesn't have a user data argument, if you want
+    that, use the alternative stream_userdata_cb and also set the user_data pointer:
+
+        saudio_setup(&(saudio_desc){
+            .stream_userdata_cb = my_stream_callback,
+            .user_data = &my_data
+            .logger.func = slog_func,
+        });
+
+    The following playback parameters can be provided through the
+    saudio_desc struct:
+
+    General parameters (both for stream-callback and push-model):
+
+        int sample_rate     -- the sample rate in Hz, default: 44100
+        int num_channels    -- number of channels, default: 1 (mono)
+        int buffer_frames   -- number of frames in streaming buffer, default: 2048
+
+    The stream callback prototype (either with or without userdata):
+
+        void (*stream_cb)(float* buffer, int num_frames, int num_channels)
+        void (*stream_userdata_cb)(float* buffer, int num_frames, int num_channels, void* user_data)
+            Function pointer to the user-provide stream callback.
+
+    Push-model parameters:
+
+        int packet_frames   -- number of frames in a packet, default: 128
+        int num_packets     -- number of packets in ring buffer, default: 64
+
+    The sample_rate and num_channels parameters are only hints for the audio
+    backend, it isn't guaranteed that those are the values used for actual
+    playback.
+
+    To get the actual parameters, call the following functions after
+    saudio_setup():
+
+        int saudio_sample_rate(void)
+        int saudio_channels(void);
+
+    It's unlikely that the number of channels will be different than requested,
+    but a different sample rate isn't uncommon.
+
+    (NOTE: there's an yet unsolved issue when an audio backend might switch
+    to a different sample rate when switching output devices, for instance
+    plugging in a bluetooth headset, this case is currently not handled in
+    Sokol Audio).
+
+    You can check if audio initialization was successful with
+    saudio_isvalid(). If backend initialization failed for some reason
+    (for instance when there's no audio device in the machine), this
+    will return false. Not checking for success won't do any harm, all
+    Sokol Audio function will silently fail when called after initialization
+    has failed, so apart from missing audio output, nothing bad will happen.
+
+    Before your application exits, you should call
+
+        saudio_shutdown();
+
+    This stops the audio thread (on Linux, Windows and macOS/iOS) and
+    properly shuts down the audio backend.
+
+    THE STREAM CALLBACK MODEL
+    =========================
+    To use Sokol Audio in stream-callback-mode, provide a callback function
+    like this in the saudio_desc struct when calling saudio_setup():
+
+    void stream_cb(float* buffer, int num_frames, int num_channels) {
+        ...
+    }
+
+    Or the alternative version with a user-data argument:
+
+    void stream_userdata_cb(float* buffer, int num_frames, int num_channels, void* user_data) {
+        my_data_t* my_data = (my_data_t*) user_data;
+        ...
+    }
+
+    The job of the callback function is to fill the *buffer* with 32-bit
+    float sample values.
+
+    To output silence, fill the buffer with zeros:
+
+        void stream_cb(float* buffer, int num_frames, int num_channels) {
+            const int num_samples = num_frames * num_channels;
+            for (int i = 0; i < num_samples; i++) {
+                buffer[i] = 0.0f;
+            }
+        }
+
+    For stereo output (num_channels == 2), the samples for the left
+    and right channel are interleaved:
+
+        void stream_cb(float* buffer, int num_frames, int num_channels) {
+            assert(2 == num_channels);
+            for (int i = 0; i < num_frames; i++) {
+                buffer[2*i + 0] = ...;  // left channel
+                buffer[2*i + 1] = ...;  // right channel
+            }
+        }
+
+    Please keep in mind that the stream callback function is running in a
+    separate thread, if you need to share data with the main thread you need
+    to take care yourself to make the access to the shared data thread-safe!
+
+    THE PUSH MODEL
+    ==============
+    To use the push-model for providing audio data, simply don't set (keep
+    zero-initialized) the stream_cb field in the saudio_desc struct when
+    calling saudio_setup().
+
+    To provide sample data with the push model, call the saudio_push()
+    function at regular intervals (for instance once per frame). You can
+    call the saudio_expect() function to ask Sokol Audio how much room is
+    in the ring buffer, but if you provide a continuous stream of data
+    at the right sample rate, saudio_expect() isn't required (it's a simple
+    way to sync/throttle your sample generation code with the playback
+    rate though).
+
+    With saudio_push() you may need to maintain your own intermediate sample
+    buffer, since pushing individual sample values isn't very efficient.
+    The following example is from the MOD player sample in
+    sokol-samples (https://github.com/floooh/sokol-samples):
+
+        const int num_frames = saudio_expect();
+        if (num_frames > 0) {
+            const int num_samples = num_frames * saudio_channels();
+            read_samples(flt_buf, num_samples);
+            saudio_push(flt_buf, num_frames);
+        }
+
+    Another option is to ignore saudio_expect(), and just push samples as they
+    are generated in small batches. In this case you *need* to generate the
+    samples at the right sample rate:
+
+    The following example is taken from the Tiny Emulators project
+    (https://github.com/floooh/chips-test), this is for mono playback,
+    so (num_samples == num_frames):
+
+        // tick the sound generator
+        if (ay38910_tick(&sys->psg)) {
+            // new sample is ready
+            sys->sample_buffer[sys->sample_pos++] = sys->psg.sample;
+            if (sys->sample_pos == sys->num_samples) {
+                // new sample packet is ready
+                saudio_push(sys->sample_buffer, sys->num_samples);
+                sys->sample_pos = 0;
+            }
+        }
+
+    THE WEBAUDIO BACKEND
+    ====================
+    The WebAudio backend is currently using a ScriptProcessorNode callback to
+    feed the sample data into WebAudio. ScriptProcessorNode has been
+    deprecated for a while because it is running from the main thread, with
+    the default initialization parameters it works 'pretty well' though.
+    Ultimately Sokol Audio will use Audio Worklets, but this requires a few
+    more things to fall into place (Audio Worklets implemented everywhere,
+    SharedArrayBuffers enabled again, and I need to figure out a 'low-cost'
+    solution in terms of implementation effort, since Audio Worklets are
+    a lot more complex than ScriptProcessorNode if the audio data needs to come
+    from the main thread).
+
+    The WebAudio backend is automatically selected when compiling for
+    emscripten (__EMSCRIPTEN__ define exists).
+
+    https://developers.google.com/web/updates/2017/12/audio-worklet
+    https://developers.google.com/web/updates/2018/06/audio-worklet-design-pattern
+
+    "Blob URLs": https://www.html5rocks.com/en/tutorials/workers/basics/
+
+    Also see: https://blog.paul.cx/post/a-wait-free-spsc-ringbuffer-for-the-web/
+
+    THE COREAUDIO BACKEND
+    =====================
+    The CoreAudio backend is selected on macOS and iOS (__APPLE__ is defined).
+    Since the CoreAudio API is implemented in C (not Objective-C) on macOS the
+    implementation part of Sokol Audio can be included into a C source file.
+
+    However on iOS, Sokol Audio must be compiled as Objective-C due to it's
+    reliance on the AVAudioSession object. The iOS code path support both
+    being compiled with or without ARC (Automatic Reference Counting).
+
+    For thread synchronisation, the CoreAudio backend will use the
+    pthread_mutex_* functions.
+
+    The incoming floating point samples will be directly forwarded to
+    CoreAudio without further conversion.
+
+    macOS and iOS applications that use Sokol Audio need to link with
+    the AudioToolbox framework.
+
+    THE WASAPI BACKEND
+    ==================
+    The WASAPI backend is automatically selected when compiling on Windows
+    (_WIN32 is defined).
+
+    For thread synchronisation a Win32 critical section is used.
+
+    WASAPI may use a different size for its own streaming buffer then requested,
+    so the base latency may be slightly bigger. The current backend implementation
+    converts the incoming floating point sample values to signed 16-bit
+    integers.
+
+    The required Windows system DLLs are linked with #pragma comment(lib, ...),
+    so you shouldn't need to add additional linker libs in the build process
+    (otherwise this is a bug which should be fixed in sokol_audio.h).
+
+    THE ALSA BACKEND
+    ================
+    The ALSA backend is automatically selected when compiling on Linux
+    ('linux' is defined).
+
+    For thread synchronisation, the pthread_mutex_* functions are used.
+
+    Samples are directly forwarded to ALSA in 32-bit float format, no
+    further conversion is taking place.
+
+    You need to link with the 'asound' library, and the <alsa/asoundlib.h>
+    header must be present (usually both are installed with some sort
+    of ALSA development package).
+
+
+    MEMORY ALLOCATION OVERRIDE
+    ==========================
+    You can override the memory allocation functions at initialization time
+    like this:
+
+        void* my_alloc(size_t size, void* user_data) {
+            return malloc(size);
+        }
+
+        void my_free(void* ptr, void* user_data) {
+            free(ptr);
+        }
+
+        ...
+            saudio_setup(&(saudio_desc){
+                // ...
+                .allocator = {
+                    .alloc_fn = my_alloc,
+                    .free_fn = my_free,
+                    .user_data = ...,
+                }
+            });
+        ...
+
+    If no overrides are provided, malloc and free will be used.
+
+    This only affects memory allocation calls done by sokol_audio.h
+    itself though, not any allocations in OS libraries.
+
+    Memory allocation will only happen on the same thread where saudio_setup()
+    was called, so you don't need to worry about thread-safety.
+
+
+    ERROR REPORTING AND LOGGING
+    ===========================
+    To get any logging information at all you need to provide a logging callback in the setup call
+    the easiest way is to use sokol_log.h:
+
+        #include "sokol_log.h"
+
+        saudio_setup(&(saudio_desc){ .logger.func = slog_func });
+
+    To override logging with your own callback, first write a logging function like this:
+
+        void my_log(const char* tag,                // e.g. 'saudio'
+                    uint32_t log_level,             // 0=panic, 1=error, 2=warn, 3=info
+                    uint32_t log_item_id,           // SAUDIO_LOGITEM_*
+                    const char* message_or_null,    // a message string, may be nullptr in release mode
+                    uint32_t line_nr,               // line number in sokol_audio.h
+                    const char* filename_or_null,   // source filename, may be nullptr in release mode
+                    void* user_data)
+        {
+            ...
+        }
+
+    ...and then setup sokol-audio like this:
+
+        saudio_setup(&(saudio_desc){
+            .logger = {
+                .func = my_log,
+                .user_data = my_user_data,
+            }
+        });
+
+    The provided logging function must be reentrant (e.g. be callable from
+    different threads).
+
+    If you don't want to provide your own custom logger it is highly recommended to use
+    the standard logger in sokol_log.h instead, otherwise you won't see any warnings or
+    errors.
+
+
+    LICENSE
+    =======
+
+    zlib/libpng license
+
+    Copyright (c) 2018 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+
+*/
+
+import "core:c"
+
+_ :: c
+
+SOKOL_DEBUG :: #config(SOKOL_DEBUG, ODIN_DEBUG)
+
+DEBUG :: #config(SOKOL_AUDIO_DEBUG, SOKOL_DEBUG)
+USE_GL :: #config(SOKOL_USE_GL, false)
+USE_DLL :: #config(SOKOL_DLL, false)
+
+when ODIN_OS == .Windows {
+    when USE_DLL {
+        when USE_GL {
+            when DEBUG { foreign import sokol_audio_clib { "../sokol_dll_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_audio_clib { "../sokol_dll_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_audio_clib { "../sokol_dll_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_audio_clib { "../sokol_dll_windows_x64_d3d11_release.lib" } }
+        }
+    } else {
+        when USE_GL {
+            when DEBUG { foreign import sokol_audio_clib { "sokol_audio_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_audio_clib { "sokol_audio_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_audio_clib { "sokol_audio_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_audio_clib { "sokol_audio_windows_x64_d3d11_release.lib" } }
+        }
+    }
+} else when ODIN_OS == .Darwin {
+    when USE_DLL {
+             when  USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_arm64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_arm64_gl_release.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_x64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_x64_gl_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_arm64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_arm64_metal_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_x64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_audio_clib { "../dylib/sokol_dylib_macos_x64_metal_release.dylib" } }
+    } else {
+        when USE_GL {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_audio_clib { "sokol_audio_macos_arm64_gl_debug.a", "system:AudioToolbox.framework" } }
+                else       { foreign import sokol_audio_clib { "sokol_audio_macos_arm64_gl_release.a", "system:AudioToolbox.framework" } }
+            } else {
+                when DEBUG { foreign import sokol_audio_clib { "sokol_audio_macos_x64_gl_debug.a", "system:AudioToolbox.framework" } }
+                else       { foreign import sokol_audio_clib { "sokol_audio_macos_x64_gl_release.a", "system:AudioToolbox.framework" } }
+            }
+        } else {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_audio_clib { "sokol_audio_macos_arm64_metal_debug.a", "system:AudioToolbox.framework" } }
+                else       { foreign import sokol_audio_clib { "sokol_audio_macos_arm64_metal_release.a", "system:AudioToolbox.framework" } }
+            } else {
+                when DEBUG { foreign import sokol_audio_clib { "sokol_audio_macos_x64_metal_debug.a", "system:AudioToolbox.framework" } }
+                else       { foreign import sokol_audio_clib { "sokol_audio_macos_x64_metal_release.a", "system:AudioToolbox.framework" } }
+            }
+        }
+    }
+} else when ODIN_OS == .Linux {
+    when USE_DLL {
+        when DEBUG { foreign import sokol_audio_clib { "sokol_audio_linux_x64_gl_debug.so", "system:asound", "system:dl", "system:pthread" } }
+        else       { foreign import sokol_audio_clib { "sokol_audio_linux_x64_gl_release.so", "system:asound", "system:dl", "system:pthread" } }
+    } else {
+        when DEBUG { foreign import sokol_audio_clib { "sokol_audio_linux_x64_gl_debug.a", "system:asound", "system:dl", "system:pthread" } }
+        else       { foreign import sokol_audio_clib { "sokol_audio_linux_x64_gl_release.a", "system:asound", "system:dl", "system:pthread" } }
+    }
+} else when ODIN_ARCH == .wasm32 || ODIN_ARCH == .wasm64p32 {
+    // Feed sokol_audio_wasm_gl_debug.a or sokol_audio_wasm_gl_release.a into emscripten compiler.
+    foreign import sokol_audio_clib { "env.o" }
+} else {
+    #panic("This OS is currently not supported")
+}
+
+@(default_calling_convention="c", link_prefix="saudio_")
+foreign sokol_audio_clib {
+    // setup sokol-audio
+    setup :: proc(#by_ptr desc: Desc)  ---
+    // shutdown sokol-audio
+    shutdown :: proc()  ---
+    // true after setup if audio backend was successfully initialized
+    isvalid :: proc() -> bool ---
+    // return the saudio_desc.user_data pointer
+    userdata :: proc() -> rawptr ---
+    // return a copy of the original saudio_desc struct
+    query_desc :: proc() -> Desc ---
+    // actual sample rate
+    sample_rate :: proc() -> c.int ---
+    // return actual backend buffer size in number of frames
+    buffer_frames :: proc() -> c.int ---
+    // actual number of channels
+    channels :: proc() -> c.int ---
+    // return true if audio context is currently suspended (only in WebAudio backend, all other backends return false)
+    suspended :: proc() -> bool ---
+    // get current number of frames to fill packet queue
+    expect :: proc() -> c.int ---
+    // push sample frames from main thread, returns number of frames actually pushed
+    push :: proc(frames: ^f32, #any_int num_frames: c.int) -> c.int ---
+}
+
+Log_Item :: enum i32 {
+    OK,
+    MALLOC_FAILED,
+    ALSA_SND_PCM_OPEN_FAILED,
+    ALSA_FLOAT_SAMPLES_NOT_SUPPORTED,
+    ALSA_REQUESTED_BUFFER_SIZE_NOT_SUPPORTED,
+    ALSA_REQUESTED_CHANNEL_COUNT_NOT_SUPPORTED,
+    ALSA_SND_PCM_HW_PARAMS_SET_RATE_NEAR_FAILED,
+    ALSA_SND_PCM_HW_PARAMS_FAILED,
+    ALSA_PTHREAD_CREATE_FAILED,
+    WASAPI_CREATE_EVENT_FAILED,
+    WASAPI_CREATE_DEVICE_ENUMERATOR_FAILED,
+    WASAPI_GET_DEFAULT_AUDIO_ENDPOINT_FAILED,
+    WASAPI_DEVICE_ACTIVATE_FAILED,
+    WASAPI_AUDIO_CLIENT_INITIALIZE_FAILED,
+    WASAPI_AUDIO_CLIENT_GET_BUFFER_SIZE_FAILED,
+    WASAPI_AUDIO_CLIENT_GET_SERVICE_FAILED,
+    WASAPI_AUDIO_CLIENT_SET_EVENT_HANDLE_FAILED,
+    WASAPI_CREATE_THREAD_FAILED,
+    AAUDIO_STREAMBUILDER_OPEN_STREAM_FAILED,
+    AAUDIO_PTHREAD_CREATE_FAILED,
+    AAUDIO_RESTARTING_STREAM_AFTER_ERROR,
+    USING_AAUDIO_BACKEND,
+    AAUDIO_CREATE_STREAMBUILDER_FAILED,
+    COREAUDIO_NEW_OUTPUT_FAILED,
+    COREAUDIO_ALLOCATE_BUFFER_FAILED,
+    COREAUDIO_START_FAILED,
+    BACKEND_BUFFER_SIZE_ISNT_MULTIPLE_OF_PACKET_SIZE,
+}
+
+/*
+    saudio_logger
+
+    Used in saudio_desc to provide a custom logging and error reporting
+    callback to sokol-audio.
+*/
+Logger :: struct {
+    func : proc "c" (a0: cstring, a1: u32, a2: u32, a3: cstring, a4: u32, a5: cstring, a6: rawptr),
+    user_data : rawptr,
+}
+
+/*
+    saudio_allocator
+
+    Used in saudio_desc to provide custom memory-alloc and -free functions
+    to sokol_audio.h. If memory management should be overridden, both the
+    alloc_fn and free_fn function must be provided (e.g. it's not valid to
+    override one function but not the other).
+*/
+Allocator :: struct {
+    alloc_fn : proc "c" (a0: c.size_t, a1: rawptr) -> rawptr,
+    free_fn : proc "c" (a0: rawptr, a1: rawptr),
+    user_data : rawptr,
+}
+
+Desc :: struct {
+    sample_rate : c.int,
+    num_channels : c.int,
+    buffer_frames : c.int,
+    packet_frames : c.int,
+    num_packets : c.int,
+    stream_cb : proc "c" (a0: ^f32, a1: c.int, a2: c.int),
+    stream_userdata_cb : proc "c" (a0: ^f32, a1: c.int, a2: c.int, a3: rawptr),
+    user_data : rawptr,
+    allocator : Allocator,
+    logger : Logger,
+}
+

thirdparty/sokol/build_clibs_linux.sh

@@ -0,0 +1,49 @@
+set -e
+
+build_lib_x64_release() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    # static
+    cc -pthread -c -O2 -DNDEBUG -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+    # shared
+    cc -pthread -shared -O2 -fPIC -DNDEBUG -DIMPL -D$backend -o $dst.so c/$src.c
+}
+
+build_lib_x64_debug() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    # static
+    cc -pthread -c -g -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+    # shared
+    cc -pthread -shared -g -fPIC -DIMPL -D$backend -o $dst.so c/$src.c
+}
+
+# x64 + GL + Release
+build_lib_x64_release sokol_log         log/sokol_log_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_gfx         gfx/sokol_gfx_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_app         app/sokol_app_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_glue        glue/sokol_glue_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_time        time/sokol_time_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_audio       audio/sokol_audio_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_debugtext   debugtext/sokol_debugtext_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_shape       shape/sokol_shape_linux_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_gl          gl/sokol_gl_linux_x64_gl_release SOKOL_GLCORE
+
+# x64 + GL + Debug
+build_lib_x64_debug sokol_log           log/sokol_log_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_gfx           gfx/sokol_gfx_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_app           app/sokol_app_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_glue          glue/sokol_glue_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_time          time/sokol_time_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_audio         audio/sokol_audio_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_debugtext     debugtext/sokol_debugtext_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_shape         shape/sokol_shape_linux_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_gl            gl/sokol_gl_linux_x64_gl_debug SOKOL_GLCORE
+
+rm *.o

thirdparty/sokol/build_clibs_macos.sh

@@ -0,0 +1,127 @@
+set -e
+
+build_lib_arm64_release() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -O2 -x objective-c -arch arm64 -DNDEBUG -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+}
+
+build_lib_arm64_debug() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -g -x objective-c -arch arm64 -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+}
+
+build_lib_x64_release() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -O2 -x objective-c -arch x86_64 -DNDEBUG -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+}
+
+build_lib_x64_debug() {
+    src=$1
+    dst=$2
+    backend=$3
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -g -x objective-c -arch x86_64 -DIMPL -D$backend c/$src.c
+    ar rcs $dst.a $src.o
+}
+
+# ARM + Metal + Release
+build_lib_arm64_release sokol_log         log/sokol_log_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_gfx         gfx/sokol_gfx_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_app         app/sokol_app_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_glue        glue/sokol_glue_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_time        time/sokol_time_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_audio       audio/sokol_audio_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_debugtext   debugtext/sokol_debugtext_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_shape       shape/sokol_shape_macos_arm64_metal_release SOKOL_METAL
+build_lib_arm64_release sokol_gl          gl/sokol_gl_macos_arm64_metal_release SOKOL_METAL
+
+# ARM + Metal + Debug
+build_lib_arm64_debug sokol_log           log/sokol_log_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_gfx           gfx/sokol_gfx_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_app           app/sokol_app_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_glue          glue/sokol_glue_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_time          time/sokol_time_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_audio         audio/sokol_audio_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_debugtext     debugtext/sokol_debugtext_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_shape         shape/sokol_shape_macos_arm64_metal_debug SOKOL_METAL
+build_lib_arm64_debug sokol_gl            gl/sokol_gl_macos_arm64_metal_debug SOKOL_METAL
+
+# x64 + Metal + Release
+build_lib_x64_release sokol_log         log/sokol_log_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_gfx         gfx/sokol_gfx_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_app         app/sokol_app_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_glue        glue/sokol_glue_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_time        time/sokol_time_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_audio       audio/sokol_audio_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_debugtext   debugtext/sokol_debugtext_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_shape       shape/sokol_shape_macos_x64_metal_release SOKOL_METAL
+build_lib_x64_release sokol_gl          gl/sokol_gl_macos_x64_metal_release SOKOL_METAL
+
+# x64 + Metal + Debug
+build_lib_x64_debug sokol_log           log/sokol_log_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_gfx           gfx/sokol_gfx_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_app           app/sokol_app_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_glue          glue/sokol_glue_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_time          time/sokol_time_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_audio         audio/sokol_audio_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_debugtext     debugtext/sokol_debugtext_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_shape         shape/sokol_shape_macos_x64_metal_debug SOKOL_METAL
+build_lib_x64_debug sokol_gl            gl/sokol_gl_macos_x64_metal_debug SOKOL_METAL
+
+# ARM + GL + Release
+build_lib_arm64_release sokol_log         log/sokol_log_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_gfx         gfx/sokol_gfx_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_app         app/sokol_app_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_glue        glue/sokol_glue_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_time        time/sokol_time_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_audio       audio/sokol_audio_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_debugtext   debugtext/sokol_debugtext_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_shape       shape/sokol_shape_macos_arm64_gl_release SOKOL_GLCORE
+build_lib_arm64_release sokol_gl          gl/sokol_gl_macos_arm64_gl_release SOKOL_GLCORE
+
+# ARM + GL + Debug
+build_lib_arm64_debug sokol_log           log/sokol_log_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_gfx           gfx/sokol_gfx_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_app           app/sokol_app_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_glue          glue/sokol_glue_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_time          time/sokol_time_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_audio         audio/sokol_audio_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_debugtext     debugtext/sokol_debugtext_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_shape         shape/sokol_shape_macos_arm64_gl_debug SOKOL_GLCORE
+build_lib_arm64_debug sokol_gl            gl/sokol_gl_macos_arm64_gl_debug SOKOL_GLCORE
+
+# x64 + GL + Release
+build_lib_x64_release sokol_log         log/sokol_log_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_gfx         gfx/sokol_gfx_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_app         app/sokol_app_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_glue        glue/sokol_glue_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_time        time/sokol_time_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_audio       audio/sokol_audio_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_debugtext   debugtext/sokol_debugtext_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_shape       shape/sokol_shape_macos_x64_gl_release SOKOL_GLCORE
+build_lib_x64_release sokol_gl          gl/sokol_gl_macos_x64_gl_release SOKOL_GLCORE
+
+# x64 + GL + Debug
+build_lib_x64_debug sokol_log           log/sokol_log_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_gfx           gfx/sokol_gfx_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_app           app/sokol_app_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_glue          glue/sokol_glue_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_time          time/sokol_time_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_audio         audio/sokol_audio_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_debugtext     debugtext/sokol_debugtext_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_shape         shape/sokol_shape_macos_x64_gl_debug SOKOL_GLCORE
+build_lib_x64_debug sokol_gl            gl/sokol_gl_macos_x64_gl_debug SOKOL_GLCORE
+
+rm *.o

thirdparty/sokol/build_clibs_macos_dylib.sh

@@ -0,0 +1,50 @@
+set -e
+
+FRAMEWORKS_METAL="-framework Metal -framework MetalKit"
+FRAMEWORKS_OPENGL="-framework OpenGL"
+FRAMEWORKS_CORE="-framework Foundation -framework CoreGraphics -framework Cocoa -framework QuartzCore -framework CoreAudio -framework AudioToolbox"
+
+build_lib_release() {
+    src=$1
+    dst=$2
+    backend=$3
+    arch=$4
+    frameworks=""
+    if [ $backend = "SOKOL_METAL" ]; then
+        frameworks="${frameworks} ${FRAMEWORKS_METAL}"
+    else
+        frameworks="${frameworks} ${FRAMEWORKS_OPENGL}"
+    fi
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -O2 -x objective-c -arch $arch -DNDEBUG -DIMPL -D$backend c/$src.c
+    clang -dynamiclib -arch $arch $FRAMEWORKS_CORE $frameworks -o $dst.dylib $src.o $dep
+}
+
+build_lib_debug() {
+    src=$1
+    dst=$2
+    backend=$3
+    arch=$4
+    frameworks=""
+    if [ $backend = "SOKOL_METAL" ]; then
+        frameworks="${frameworks} ${FRAMEWORKS_METAL}"
+    else
+        frameworks="${frameworks} ${FRAMEWORKS_OPENGL}"
+    fi
+    echo $dst
+    MACOSX_DEPLOYMENT_TARGET=10.13 clang -c -g -x objective-c -arch $arch -DIMPL -D$backend c/$src.c
+    clang -dynamiclib -arch $arch $FRAMEWORKS_CORE $frameworks -o $dst.dylib $src.o $dep
+}
+
+mkdir -p dylib
+
+build_lib_release sokol dylib/sokol_dylib_macos_arm64_metal_release SOKOL_METAL    arm64
+build_lib_debug   sokol dylib/sokol_dylib_macos_arm64_metal_debug   SOKOL_METAL    arm64
+build_lib_release sokol dylib/sokol_dylib_macos_x64_metal_release   SOKOL_METAL    x86_64
+build_lib_debug   sokol dylib/sokol_dylib_macos_x64_metal_debug     SOKOL_METAL    x86_64
+build_lib_release sokol dylib/sokol_dylib_macos_arm64_gl_release    SOKOL_GLCORE arm64
+build_lib_debug   sokol dylib/sokol_dylib_macos_arm64_gl_debug      SOKOL_GLCORE arm64
+build_lib_release sokol dylib/sokol_dylib_macos_x64_gl_release      SOKOL_GLCORE x86_64
+build_lib_debug   sokol dylib/sokol_dylib_macos_x64_gl_debug        SOKOL_GLCORE x86_64
+
+rm *.o

thirdparty/sokol/build_clibs_wasm.bat

@@ -0,0 +1,19 @@
+@echo off
+
+set sources=log app gfx glue time audio debugtext shape gl
+
+REM Debug
+for %%s in (%sources%) do (
+    echo %%s\sokol_%%s_wasm_gl_debug.a
+    call emcc -c -g -DIMPL -DSOKOL_GLES3 c\sokol_%%s.c
+    call emar rcs %%s\sokol_%%s_wasm_gl_debug.a sokol_%%s.o
+    del sokol_%%s.o
+)
+
+REM Release
+for %%s in (%sources%) do (
+    echo %%s\sokol_%%s_wasm_gl_release.a
+    call emcc -c -O2 -DNDEBUG -DIMPL -DSOKOL_GLES3 c\sokol_%%s.c
+    call emar rcs %%s\sokol_%%s_wasm_gl_release.a sokol_%%s.o
+    del sokol_%%s.o
+)

thirdparty/sokol/build_clibs_wasm.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+declare -a libs=("log" "gfx" "app" "glue" "time" "audio" "debugtext" "shape" "gl")
+
+for l in "${libs[@]}"
+do
+    echo "${l}/sokol_${l}_wasm_gl_debug.a"
+    emcc -c -g -DIMPL -DSOKOL_GLES3 c/sokol_$l.c
+    emar rcs $l/sokol_${l}_wasm_gl_debug.a sokol_$l.o
+    rm sokol_$l.o
+done
+
+for l in "${libs[@]}"
+do
+    echo "${l}/sokol_${l}_wasm_gl_release.a"
+    emcc -c -O2 -DNDEBUG -DIMPL -DSOKOL_GLES3 c/sokol_$l.c
+    emar rcs $l/sokol_${l}_wasm_gl_release.a sokol_$l.o
+    rm sokol_$l.o
+done

thirdparty/sokol/build_clibs_windows.cmd

@@ -0,0 +1,45 @@
+@echo off
+
+set sources=log app gfx glue time audio debugtext shape gl
+
+REM D3D11 Debug
+for %%s in (%sources%) do (
+    cl /c /D_DEBUG /DIMPL /DSOKOL_D3D11 c\sokol_%%s.c /Z7
+    lib /OUT:%%s\sokol_%%s_windows_x64_d3d11_debug.lib sokol_%%s.obj
+    del sokol_%%s.obj
+)
+
+REM D3D11 Release
+for %%s in (%sources%) do (
+    cl /c /O2 /DNDEBUG /DIMPL /DSOKOL_D3D11 c\sokol_%%s.c
+    lib /OUT:%%s\sokol_%%s_windows_x64_d3d11_release.lib sokol_%%s.obj
+    del sokol_%%s.obj
+)
+
+REM GL Debug
+for %%s in (%sources%) do (
+    cl /c /D_DEBUG /DIMPL /DSOKOL_GLCORE c\sokol_%%s.c /Z7
+    lib /OUT:%%s\sokol_%%s_windows_x64_gl_debug.lib sokol_%%s.obj
+    del sokol_%%s.obj
+)
+
+REM GL Release
+for %%s in (%sources%) do (
+    cl /c /O2 /DNDEBUG /DIMPL /DSOKOL_GLCORE c\sokol_%%s.c
+    lib /OUT:%%s\sokol_%%s_windows_x64_gl_release.lib sokol_%%s.obj
+    del sokol_%%s.obj
+)
+
+REM D3D11 Debug DLL
+cl /D_DEBUG /DIMPL /DSOKOL_DLL /DSOKOL_D3D11 c\sokol.c /Z7 /LDd /MDd /DLL /Fe:sokol_dll_windows_x64_d3d11_debug.dll /link /INCREMENTAL:NO
+
+REM D3D11 Release DLL
+cl /D_DEBUG /DIMPL /DSOKOL_DLL /DSOKOL_D3D11 c\sokol.c /LD /MD /DLL /Fe:sokol_dll_windows_x64_d3d11_release.dll /link /INCREMENTAL:NO
+
+REM GL Debug DLL
+cl /D_DEBUG /DIMPL /DSOKOL_DLL /DSOKOL_GLCORE c\sokol.c /Z7 /LDd /MDd /DLL /Fe:sokol_dll_windows_x64_gl_debug.dll /link /INCREMENTAL:NO
+
+REM GL Release DLL
+cl /D_DEBUG /DIMPL /DSOKOL_DLL /DSOKOL_GLCORE c\sokol.c /LD /MD /DLL /Fe:sokol_dll_windows_x64_gl_release.dll /link /INCREMENTAL:NO
+
+del sokol.obj

thirdparty/sokol/build_shaders_macos.sh

@@ -0,0 +1,30 @@
+set -e
+
+sokol_tools_root=../sokol-tools-bin
+
+build_shader() {
+    name=$1
+    dir=examples/$name
+    if [[ $(arch) =~ "arm64" ]]
+    then
+        shdc=$sokol_tools_root/bin/osx_arm64/sokol-shdc
+    else
+        shdc=$sokol_tools_root/bin/osx/sokol-shdc
+    fi
+    echo $dir
+    $shdc -i $dir/shader.glsl -o $dir/shader.odin -l glsl430:metal_macos:hlsl5 -f sokol_odin
+}
+
+build_shader blend
+build_shader bufferoffsets
+build_shader cube
+build_shader instancing
+build_shader instancing-compute
+build_shader mrt
+build_shader noninterleaved
+build_shader offscreen
+build_shader quad
+build_shader shapes
+build_shader texcube
+build_shader triangle
+build_shader vertexpull

thirdparty/sokol/c/sokol.c

@@ -0,0 +1,16 @@
+#if defined(IMPL)
+#define SOKOL_IMPL
+#endif
+
+#include "sokol_defines.h"
+
+#include "sokol_audio.h"
+#include "sokol_app.h"
+#include "sokol_gfx.h"
+#include "sokol_log.h"
+#include "sokol_time.h"
+#include "sokol_glue.h"
+
+#include "sokol_gl.h"
+#include "sokol_shape.h"
+#include "sokol_debugtext.h"

thirdparty/sokol/c/sokol_app.c

@@ -0,0 +1,5 @@
+#if defined(IMPL)
+#define SOKOL_APP_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_app.h"

thirdparty/sokol/c/sokol_audio.c

@@ -0,0 +1,6 @@
+#if defined(IMPL)
+#define SOKOL_AUDIO_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_audio.h"
+

thirdparty/sokol/c/sokol_debugtext.c

@@ -0,0 +1,7 @@
+#if defined(IMPL)
+#define SOKOL_DEBUGTEXT_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_gfx.h"
+#include "sokol_debugtext.h"
+

thirdparty/sokol/c/sokol_defines.h

@@ -0,0 +1,8 @@
+#define SOKOL_NO_ENTRY
+#if defined(_WIN32)
+    #define SOKOL_WIN32_FORCE_MAIN
+#endif
+// FIXME: macOS Zig HACK without this, some C stdlib headers throw errors
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif

thirdparty/sokol/c/sokol_gfx.c

@@ -0,0 +1,5 @@
+#if defined(IMPL)
+#define SOKOL_GFX_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_gfx.h"

thirdparty/sokol/c/sokol_gl.c

@@ -0,0 +1,6 @@
+#if defined(IMPL)
+#define SOKOL_GL_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_gfx.h"
+#include "sokol_gl.h"

thirdparty/sokol/c/sokol_glue.c

@@ -0,0 +1,7 @@
+#if defined(IMPL)
+#define SOKOL_GLUE_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_app.h"
+#include "sokol_gfx.h"
+#include "sokol_glue.h"

thirdparty/sokol/c/sokol_glue.h

@@ -0,0 +1,162 @@
+#if defined(SOKOL_IMPL) && !defined(SOKOL_GLUE_IMPL)
+#define SOKOL_GLUE_IMPL
+#endif
+#ifndef SOKOL_GLUE_INCLUDED
+/*
+    sokol_glue.h -- glue helper functions for sokol headers
+
+    Project URL: https://github.com/floooh/sokol
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_GLUE_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    ...optionally provide the following macros to override defaults:
+
+    SOKOL_ASSERT(c)     - your own assert macro (default: assert(c))
+    SOKOL_GLUE_API_DECL - public function declaration prefix (default: extern)
+    SOKOL_API_DECL      - same as SOKOL_GLUE_API_DECL
+    SOKOL_API_IMPL      - public function implementation prefix (default: -)
+
+    If sokol_glue.h is compiled as a DLL, define the following before
+    including the declaration or implementation:
+
+    SOKOL_DLL
+
+    On Windows, SOKOL_DLL will define SOKOL_GLUE_API_DECL as __declspec(dllexport)
+    or __declspec(dllimport) as needed.
+
+    OVERVIEW
+    ========
+    sokol_glue.h provides glue helper functions between sokol_gfx.h and sokol_app.h,
+    so that sokol_gfx.h doesn't need to depend on sokol_app.h but can be
+    used with different window system glue libraries.
+
+    PROVIDED FUNCTIONS
+    ==================
+
+    sg_environment sglue_environment(void)
+
+        Returns an sg_environment struct initialized by calling sokol_app.h
+        functions. Use this in the sg_setup() call like this:
+
+        sg_setup(&(sg_desc){
+            .environment = sglue_environment(),
+            ...
+        });
+
+    sg_swapchain sglue_swapchain(void)
+
+        Returns an sg_swapchain struct initialized by calling sokol_app.h
+        functions. Use this in sg_begin_pass() for a 'swapchain pass' like
+        this:
+
+        sg_begin_pass(&(sg_pass){ .swapchain = sglue_swapchain(), ... });
+
+    LICENSE
+    =======
+    zlib/libpng license
+
+    Copyright (c) 2018 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+*/
+#define SOKOL_GLUE_INCLUDED
+
+#if defined(SOKOL_API_DECL) && !defined(SOKOL_GLUE_API_DECL)
+#define SOKOL_GLUE_API_DECL SOKOL_API_DECL
+#endif
+#ifndef SOKOL_GLUE_API_DECL
+#if defined(_WIN32) && defined(SOKOL_DLL) && defined(SOKOL_GLUE_IMPL)
+#define SOKOL_GLUE_API_DECL __declspec(dllexport)
+#elif defined(_WIN32) && defined(SOKOL_DLL)
+#define SOKOL_GLUE_API_DECL __declspec(dllimport)
+#else
+#define SOKOL_GLUE_API_DECL extern
+#endif
+#endif
+
+#ifndef SOKOL_GFX_INCLUDED
+#error "Please include sokol_gfx.h before sokol_glue.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SOKOL_GLUE_API_DECL sg_environment sglue_environment(void);
+SOKOL_GLUE_API_DECL sg_swapchain sglue_swapchain(void);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+#endif /* SOKOL_GLUE_INCLUDED */
+
+/*-- IMPLEMENTATION ----------------------------------------------------------*/
+#ifdef SOKOL_GLUE_IMPL
+#define SOKOL_GLUE_IMPL_INCLUDED (1)
+#include <string.h> /* memset */
+
+#ifndef SOKOL_APP_INCLUDED
+#error "Please include sokol_app.h before the sokol_glue.h implementation"
+#endif
+
+#ifndef SOKOL_API_IMPL
+#define SOKOL_API_IMPL
+#endif
+
+
+SOKOL_API_IMPL sg_environment sglue_environment(void) {
+    sg_environment env;
+    memset(&env, 0, sizeof(env));
+    env.defaults.color_format = (sg_pixel_format) sapp_color_format();
+    env.defaults.depth_format = (sg_pixel_format) sapp_depth_format();
+    env.defaults.sample_count = sapp_sample_count();
+    env.metal.device = sapp_metal_get_device();
+    env.d3d11.device = sapp_d3d11_get_device();
+    env.d3d11.device_context = sapp_d3d11_get_device_context();
+    env.wgpu.device = sapp_wgpu_get_device();
+    return env;
+}
+
+SOKOL_API_IMPL sg_swapchain sglue_swapchain(void) {
+    sg_swapchain swapchain;
+    memset(&swapchain, 0, sizeof(swapchain));
+    swapchain.width = sapp_width();
+    swapchain.height = sapp_height();
+    swapchain.sample_count = sapp_sample_count();
+    swapchain.color_format = (sg_pixel_format)sapp_color_format();
+    swapchain.depth_format = (sg_pixel_format)sapp_depth_format();
+    swapchain.metal.current_drawable = sapp_metal_get_current_drawable();
+    swapchain.metal.depth_stencil_texture = sapp_metal_get_depth_stencil_texture();
+    swapchain.metal.msaa_color_texture = sapp_metal_get_msaa_color_texture();
+    swapchain.d3d11.render_view = sapp_d3d11_get_render_view();
+    swapchain.d3d11.resolve_view = sapp_d3d11_get_resolve_view();
+    swapchain.d3d11.depth_stencil_view = sapp_d3d11_get_depth_stencil_view();
+    swapchain.wgpu.render_view = sapp_wgpu_get_render_view();
+    swapchain.wgpu.resolve_view = sapp_wgpu_get_resolve_view();
+    swapchain.wgpu.depth_stencil_view = sapp_wgpu_get_depth_stencil_view();
+    swapchain.gl.framebuffer = sapp_gl_get_framebuffer();
+    return swapchain;
+}
+
+#endif /* SOKOL_GLUE_IMPL */

thirdparty/sokol/c/sokol_log.c

@@ -0,0 +1,5 @@
+#if defined(IMPL)
+#define SOKOL_LOG_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_log.h"

thirdparty/sokol/c/sokol_log.h

@@ -0,0 +1,334 @@
+#if defined(SOKOL_IMPL) && !defined(SOKOL_LOG_IMPL)
+#define SOKOL_LOG_IMPL
+#endif
+#ifndef SOKOL_LOG_INCLUDED
+/*
+    sokol_log.h -- common logging callback for sokol headers
+
+    Project URL: https://github.com/floooh/sokol
+
+    Example code: https://github.com/floooh/sokol-samples
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_LOG_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    Optionally provide the following defines when building the implementation:
+
+    SOKOL_ASSERT(c)             - your own assert macro (default: assert(c))
+    SOKOL_UNREACHABLE()         - a guard macro for unreachable code (default: assert(false))
+    SOKOL_LOG_API_DECL          - public function declaration prefix (default: extern)
+    SOKOL_API_DECL              - same as SOKOL_GFX_API_DECL
+    SOKOL_API_IMPL              - public function implementation prefix (default: -)
+
+    Optionally define the following for verbose output:
+
+    SOKOL_DEBUG         - by default this is defined if _DEBUG is defined
+
+
+    OVERVIEW
+    ========
+    sokol_log.h provides a default logging callback for other sokol headers.
+
+    To use the default log callback, just include sokol_log.h and provide
+    a function pointer to the 'slog_func' function when setting up the
+    sokol library:
+
+    For instance with sokol_audio.h:
+
+        #include "sokol_log.h"
+        ...
+        saudio_setup(&(saudio_desc){ .logger.func = slog_func });
+
+    Logging output goes to stderr and/or a platform specific logging subsystem
+    (which means that in some scenarios you might see logging messages duplicated):
+
+        - Windows: stderr + OutputDebugStringA()
+        - macOS/iOS/Linux: stderr + syslog()
+        - Emscripten: console.info()/warn()/error()
+        - Android: __android_log_write()
+
+    On Windows with sokol_app.h also note the runtime config items to make
+    stdout/stderr output visible on the console for WinMain() applications
+    via sapp_desc.win32_console_attach or sapp_desc.win32_console_create,
+    however when running in a debugger on Windows, the logging output should
+    show up on the debug output UI panel.
+
+    In debug mode, a log message might look like this:
+
+        [sspine][error][id:12] /Users/floh/projects/sokol/util/sokol_spine.h:3472:0:
+            SKELETON_DESC_NO_ATLAS: no atlas object provided in sspine_skeleton_desc.atlas
+
+    The source path and line number is formatted like compiler errors, in some IDEs (like VSCode)
+    such error messages are clickable.
+
+    In release mode, logging is less verbose as to not bloat the executable with string data, but you still get
+    enough information to identify the type and location of an error:
+
+        [sspine][error][id:12][line:3472]
+
+    RULES FOR WRITING YOUR OWN LOGGING FUNCTION
+    ===========================================
+    - must be re-entrant because it might be called from different threads
+    - must treat **all** provided string pointers as optional (can be null)
+    - don't store the string pointers, copy the string data instead
+    - must not return for log level panic
+
+    LICENSE
+    =======
+    zlib/libpng license
+
+    Copyright (c) 2023 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+*/
+#define SOKOL_LOG_INCLUDED (1)
+#include <stdint.h>
+
+#if defined(SOKOL_API_DECL) && !defined(SOKOL_LOG_API_DECL)
+#define SOKOL_LOG_API_DECL SOKOL_API_DECL
+#endif
+#ifndef SOKOL_LOG_API_DECL
+#if defined(_WIN32) && defined(SOKOL_DLL) && defined(SOKOL_LOG_IMPL)
+#define SOKOL_LOG_API_DECL __declspec(dllexport)
+#elif defined(_WIN32) && defined(SOKOL_DLL)
+#define SOKOL_LOG_API_DECL __declspec(dllimport)
+#else
+#define SOKOL_LOG_API_DECL extern
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+    Plug this function into the 'logger.func' struct item when initializing any of the sokol
+    headers. For instance for sokol_audio.h it would look like this:
+
+    saudio_setup(&(saudio_desc){
+        .logger = {
+            .func = slog_func
+        }
+    });
+*/
+SOKOL_LOG_API_DECL void slog_func(const char* tag, uint32_t log_level, uint32_t log_item, const char* message, uint32_t line_nr, const char* filename, void* user_data);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+#endif // SOKOL_LOG_INCLUDED
+
+// ██ ███    ███ ██████  ██      ███████ ███    ███ ███████ ███    ██ ████████  █████  ████████ ██  ██████  ███    ██
+// ██ ████  ████ ██   ██ ██      ██      ████  ████ ██      ████   ██    ██    ██   ██    ██    ██ ██    ██ ████   ██
+// ██ ██ ████ ██ ██████  ██      █████   ██ ████ ██ █████   ██ ██  ██    ██    ███████    ██    ██ ██    ██ ██ ██  ██
+// ██ ██  ██  ██ ██      ██      ██      ██  ██  ██ ██      ██  ██ ██    ██    ██   ██    ██    ██ ██    ██ ██  ██ ██
+// ██ ██      ██ ██      ███████ ███████ ██      ██ ███████ ██   ████    ██    ██   ██    ██    ██  ██████  ██   ████
+//
+// >>implementation
+#ifdef SOKOL_LOG_IMPL
+#define SOKOL_LOG_IMPL_INCLUDED (1)
+
+#ifndef SOKOL_API_IMPL
+    #define SOKOL_API_IMPL
+#endif
+#ifndef SOKOL_DEBUG
+    #ifndef NDEBUG
+        #define SOKOL_DEBUG
+    #endif
+#endif
+#ifndef SOKOL_ASSERT
+    #include <assert.h>
+    #define SOKOL_ASSERT(c) assert(c)
+#endif
+
+#ifndef _SOKOL_PRIVATE
+    #if defined(__GNUC__) || defined(__clang__)
+        #define _SOKOL_PRIVATE __attribute__((unused)) static
+    #else
+        #define _SOKOL_PRIVATE static
+    #endif
+#endif
+
+#ifndef _SOKOL_UNUSED
+    #define _SOKOL_UNUSED(x) (void)(x)
+#endif
+
+// platform detection
+#if defined(__APPLE__)
+    #define _SLOG_APPLE (1)
+#elif defined(__EMSCRIPTEN__)
+    #define _SLOG_EMSCRIPTEN (1)
+#elif defined(_WIN32)
+    #define _SLOG_WINDOWS (1)
+#elif defined(__ANDROID__)
+    #define _SLOG_ANDROID (1)
+#elif defined(__linux__) || defined(__unix__)
+    #define _SLOG_LINUX (1)
+#else
+#error "sokol_log.h: unknown platform"
+#endif
+
+#include <stdlib.h> // abort
+#include <stdio.h>  // fputs
+#include <stddef.h> // size_t
+
+#if defined(_SLOG_EMSCRIPTEN)
+#include <emscripten/emscripten.h>
+#elif defined(_SLOG_WINDOWS)
+#ifndef WIN32_LEAN_AND_MEAN
+    #define WIN32_LEAN_AND_MEAN
+#endif
+#ifndef NOMINMAX
+    #define NOMINMAX
+#endif
+#include <windows.h>
+#elif defined(_SLOG_ANDROID)
+#include <android/log.h>
+#elif defined(_SLOG_LINUX) || defined(_SLOG_APPLE)
+#include <syslog.h>
+#endif
+
+// size of line buffer (on stack!) in bytes including terminating zero
+#define _SLOG_LINE_LENGTH (512)
+
+_SOKOL_PRIVATE char* _slog_append(const char* str, char* dst, char* end) {
+    if (str) {
+        char c;
+        while (((c = *str++) != 0) && (dst < (end - 1))) {
+            *dst++ = c;
+        }
+    }
+    *dst = 0;
+    return dst;
+}
+
+_SOKOL_PRIVATE char* _slog_itoa(uint32_t x, char* buf, size_t buf_size) {
+    const size_t max_digits_and_null = 11;
+    if (buf_size < max_digits_and_null) {
+        return 0;
+    }
+    char* p = buf + max_digits_and_null;
+    *--p = 0;
+    do {
+        *--p = '0' + (x % 10);
+        x /= 10;
+    } while (x != 0);
+    return p;
+}
+
+#if defined(_SLOG_EMSCRIPTEN)
+EM_JS(void, slog_js_log, (uint32_t level, const char* c_str), {
+    const str = UTF8ToString(c_str);
+    switch (level) {
+        case 0: console.error(str); break;
+        case 1: console.error(str); break;
+        case 2: console.warn(str); break;
+        default: console.info(str); break;
+    }
+})
+#endif
+
+SOKOL_API_IMPL void slog_func(const char* tag, uint32_t log_level, uint32_t log_item, const char* message, uint32_t line_nr, const char* filename, void* user_data) {
+    _SOKOL_UNUSED(user_data);
+
+    const char* log_level_str;
+    switch (log_level) {
+        case 0: log_level_str = "panic"; break;
+        case 1: log_level_str = "error"; break;
+        case 2: log_level_str = "warning"; break;
+        default: log_level_str = "info"; break;
+    }
+
+    // build log output line
+    char line_buf[_SLOG_LINE_LENGTH];
+    char* str = line_buf;
+    char* end = line_buf + sizeof(line_buf);
+    char num_buf[32];
+    if (tag) {
+        str = _slog_append("[", str, end);
+        str = _slog_append(tag, str, end);
+        str = _slog_append("]", str, end);
+    }
+    str = _slog_append("[", str, end);
+    str = _slog_append(log_level_str, str, end);
+    str = _slog_append("]", str, end);
+    str = _slog_append("[id:", str, end);
+    str = _slog_append(_slog_itoa(log_item, num_buf, sizeof(num_buf)), str, end);
+    str = _slog_append("]", str, end);
+    // if a filename is provided, build a clickable log message that's compatible with compiler error messages
+    if (filename) {
+        str = _slog_append(" ", str, end);
+        #if defined(_MSC_VER)
+            // MSVC compiler error format
+            str = _slog_append(filename, str, end);
+            str = _slog_append("(", str, end);
+            str = _slog_append(_slog_itoa(line_nr, num_buf, sizeof(num_buf)), str, end);
+            str = _slog_append("): ", str, end);
+        #else
+            // gcc/clang compiler error format
+            str = _slog_append(filename, str, end);
+            str = _slog_append(":", str, end);
+            str = _slog_append(_slog_itoa(line_nr, num_buf, sizeof(num_buf)), str, end);
+            str = _slog_append(":0: ", str, end);
+        #endif
+    }
+    else {
+        str = _slog_append("[line:", str, end);
+        str = _slog_append(_slog_itoa(line_nr, num_buf, sizeof(num_buf)), str, end);
+        str = _slog_append("] ", str, end);
+    }
+    if (message) {
+        str = _slog_append("\n\t", str, end);
+        str = _slog_append(message, str, end);
+    }
+    str = _slog_append("\n\n", str, end);
+    if (0 == log_level) {
+        str = _slog_append("ABORTING because of [panic]\n", str, end);
+        (void)str;
+    }
+
+    // print to stderr?
+    #if defined(_SLOG_LINUX) || defined(_SLOG_WINDOWS) || defined(_SLOG_APPLE)
+        fputs(line_buf, stderr);
+    #endif
+
+    // platform specific logging calls
+    #if defined(_SLOG_WINDOWS)
+        OutputDebugStringA(line_buf);
+    #elif defined(_SLOG_ANDROID)
+        int prio;
+        switch (log_level) {
+            case 0: prio = ANDROID_LOG_FATAL; break;
+            case 1: prio = ANDROID_LOG_ERROR; break;
+            case 2: prio = ANDROID_LOG_WARN; break;
+            default: prio = ANDROID_LOG_INFO; break;
+        }
+        __android_log_write(prio, "SOKOL", line_buf);
+    #elif defined(_SLOG_EMSCRIPTEN)
+        slog_js_log(log_level, line_buf);
+    #endif
+    if (0 == log_level) {
+        abort();
+    }
+}
+#endif // SOKOL_LOG_IMPL

thirdparty/sokol/c/sokol_shape.c

@@ -0,0 +1,6 @@
+#if defined(IMPL)
+#define SOKOL_SHAPE_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_gfx.h"
+#include "sokol_shape.h"

thirdparty/sokol/c/sokol_time.c

@@ -0,0 +1,5 @@
+#if defined(IMPL)
+#define SOKOL_TIME_IMPL
+#endif
+#include "sokol_defines.h"
+#include "sokol_time.h"

thirdparty/sokol/c/sokol_time.h

@@ -0,0 +1,319 @@
+#if defined(SOKOL_IMPL) && !defined(SOKOL_TIME_IMPL)
+#define SOKOL_TIME_IMPL
+#endif
+#ifndef SOKOL_TIME_INCLUDED
+/*
+    sokol_time.h    -- simple cross-platform time measurement
+
+    Project URL: https://github.com/floooh/sokol
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_TIME_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    Optionally provide the following defines with your own implementations:
+    SOKOL_ASSERT(c)     - your own assert macro (default: assert(c))
+    SOKOL_TIME_API_DECL - public function declaration prefix (default: extern)
+    SOKOL_API_DECL      - same as SOKOL_TIME_API_DECL
+    SOKOL_API_IMPL      - public function implementation prefix (default: -)
+
+    If sokol_time.h is compiled as a DLL, define the following before
+    including the declaration or implementation:
+
+    SOKOL_DLL
+
+    On Windows, SOKOL_DLL will define SOKOL_TIME_API_DECL as __declspec(dllexport)
+    or __declspec(dllimport) as needed.
+
+    void stm_setup();
+        Call once before any other functions to initialize sokol_time
+        (this calls for instance QueryPerformanceFrequency on Windows)
+
+    uint64_t stm_now();
+        Get current point in time in unspecified 'ticks'. The value that
+        is returned has no relation to the 'wall-clock' time and is
+        not in a specific time unit, it is only useful to compute
+        time differences.
+
+    uint64_t stm_diff(uint64_t new, uint64_t old);
+        Computes the time difference between new and old. This will always
+        return a positive, non-zero value.
+
+    uint64_t stm_since(uint64_t start);
+        Takes the current time, and returns the elapsed time since start
+        (this is a shortcut for "stm_diff(stm_now(), start)")
+
+    uint64_t stm_laptime(uint64_t* last_time);
+        This is useful for measuring frame time and other recurring
+        events. It takes the current time, returns the time difference
+        to the value in last_time, and stores the current time in
+        last_time for the next call. If the value in last_time is 0,
+        the return value will be zero (this usually happens on the
+        very first call).
+
+    uint64_t stm_round_to_common_refresh_rate(uint64_t duration)
+        This oddly named function takes a measured frame time and
+        returns the closest "nearby" common display refresh rate frame duration
+        in ticks. If the input duration isn't close to any common display
+        refresh rate, the input duration will be returned unchanged as a fallback.
+        The main purpose of this function is to remove jitter/inaccuracies from
+        measured frame times, and instead use the display refresh rate as
+        frame duration.
+        NOTE: for more robust frame timing, consider using the
+        sokol_app.h function sapp_frame_duration()
+
+    Use the following functions to convert a duration in ticks into
+    useful time units:
+
+    double stm_sec(uint64_t ticks);
+    double stm_ms(uint64_t ticks);
+    double stm_us(uint64_t ticks);
+    double stm_ns(uint64_t ticks);
+        Converts a tick value into seconds, milliseconds, microseconds
+        or nanoseconds. Note that not all platforms will have nanosecond
+        or even microsecond precision.
+
+    Uses the following time measurement functions under the hood:
+
+    Windows:        QueryPerformanceFrequency() / QueryPerformanceCounter()
+    MacOS/iOS:      mach_absolute_time()
+    emscripten:     emscripten_get_now()
+    Linux+others:   clock_gettime(CLOCK_MONOTONIC)
+
+    zlib/libpng license
+
+    Copyright (c) 2018 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+*/
+#define SOKOL_TIME_INCLUDED (1)
+#include <stdint.h>
+
+#if defined(SOKOL_API_DECL) && !defined(SOKOL_TIME_API_DECL)
+#define SOKOL_TIME_API_DECL SOKOL_API_DECL
+#endif
+#ifndef SOKOL_TIME_API_DECL
+#if defined(_WIN32) && defined(SOKOL_DLL) && defined(SOKOL_TIME_IMPL)
+#define SOKOL_TIME_API_DECL __declspec(dllexport)
+#elif defined(_WIN32) && defined(SOKOL_DLL)
+#define SOKOL_TIME_API_DECL __declspec(dllimport)
+#else
+#define SOKOL_TIME_API_DECL extern
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SOKOL_TIME_API_DECL void stm_setup(void);
+SOKOL_TIME_API_DECL uint64_t stm_now(void);
+SOKOL_TIME_API_DECL uint64_t stm_diff(uint64_t new_ticks, uint64_t old_ticks);
+SOKOL_TIME_API_DECL uint64_t stm_since(uint64_t start_ticks);
+SOKOL_TIME_API_DECL uint64_t stm_laptime(uint64_t* last_time);
+SOKOL_TIME_API_DECL uint64_t stm_round_to_common_refresh_rate(uint64_t frame_ticks);
+SOKOL_TIME_API_DECL double stm_sec(uint64_t ticks);
+SOKOL_TIME_API_DECL double stm_ms(uint64_t ticks);
+SOKOL_TIME_API_DECL double stm_us(uint64_t ticks);
+SOKOL_TIME_API_DECL double stm_ns(uint64_t ticks);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+#endif // SOKOL_TIME_INCLUDED
+
+/*-- IMPLEMENTATION ----------------------------------------------------------*/
+#ifdef SOKOL_TIME_IMPL
+#define SOKOL_TIME_IMPL_INCLUDED (1)
+#include <string.h> /* memset */
+
+#ifndef SOKOL_API_IMPL
+    #define SOKOL_API_IMPL
+#endif
+#ifndef SOKOL_ASSERT
+    #include <assert.h>
+    #define SOKOL_ASSERT(c) assert(c)
+#endif
+#ifndef _SOKOL_PRIVATE
+    #if defined(__GNUC__) || defined(__clang__)
+        #define _SOKOL_PRIVATE __attribute__((unused)) static
+    #else
+        #define _SOKOL_PRIVATE static
+    #endif
+#endif
+
+#if defined(_WIN32)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+typedef struct {
+    uint32_t initialized;
+    LARGE_INTEGER freq;
+    LARGE_INTEGER start;
+} _stm_state_t;
+#elif defined(__APPLE__) && defined(__MACH__)
+#include <mach/mach_time.h>
+typedef struct {
+    uint32_t initialized;
+    mach_timebase_info_data_t timebase;
+    uint64_t start;
+} _stm_state_t;
+#elif defined(__EMSCRIPTEN__)
+#include <emscripten/emscripten.h>
+typedef struct {
+    uint32_t initialized;
+    double start;
+} _stm_state_t;
+#else /* anything else, this will need more care for non-Linux platforms */
+#ifdef ESP8266
+// On the ESP8266, clock_gettime ignores the first argument and CLOCK_MONOTONIC isn't defined
+#define CLOCK_MONOTONIC 0
+#endif
+#include <time.h>
+typedef struct {
+    uint32_t initialized;
+    uint64_t start;
+} _stm_state_t;
+#endif
+static _stm_state_t _stm;
+
+/* prevent 64-bit overflow when computing relative timestamp
+    see https://gist.github.com/jspohr/3dc4f00033d79ec5bdaf67bc46c813e3
+*/
+#if defined(_WIN32) || (defined(__APPLE__) && defined(__MACH__))
+_SOKOL_PRIVATE int64_t _stm_int64_muldiv(int64_t value, int64_t numer, int64_t denom) {
+    int64_t q = value / denom;
+    int64_t r = value % denom;
+    return q * numer + r * numer / denom;
+}
+#endif
+
+SOKOL_API_IMPL void stm_setup(void) {
+    memset(&_stm, 0, sizeof(_stm));
+    _stm.initialized = 0xABCDABCD;
+    #if defined(_WIN32)
+        QueryPerformanceFrequency(&_stm.freq);
+        QueryPerformanceCounter(&_stm.start);
+    #elif defined(__APPLE__) && defined(__MACH__)
+        mach_timebase_info(&_stm.timebase);
+        _stm.start = mach_absolute_time();
+    #elif defined(__EMSCRIPTEN__)
+        _stm.start = emscripten_get_now();
+    #else
+        struct timespec ts;
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+        _stm.start = (uint64_t)ts.tv_sec*1000000000 + (uint64_t)ts.tv_nsec;
+    #endif
+}
+
+SOKOL_API_IMPL uint64_t stm_now(void) {
+    SOKOL_ASSERT(_stm.initialized == 0xABCDABCD);
+    uint64_t now;
+    #if defined(_WIN32)
+        LARGE_INTEGER qpc_t;
+        QueryPerformanceCounter(&qpc_t);
+        now = (uint64_t) _stm_int64_muldiv(qpc_t.QuadPart - _stm.start.QuadPart, 1000000000, _stm.freq.QuadPart);
+    #elif defined(__APPLE__) && defined(__MACH__)
+        const uint64_t mach_now = mach_absolute_time() - _stm.start;
+        now = (uint64_t) _stm_int64_muldiv((int64_t)mach_now, (int64_t)_stm.timebase.numer, (int64_t)_stm.timebase.denom);
+    #elif defined(__EMSCRIPTEN__)
+        double js_now = emscripten_get_now() - _stm.start;
+        now = (uint64_t) (js_now * 1000000.0);
+    #else
+        struct timespec ts;
+        clock_gettime(CLOCK_MONOTONIC, &ts);
+        now = ((uint64_t)ts.tv_sec*1000000000 + (uint64_t)ts.tv_nsec) - _stm.start;
+    #endif
+    return now;
+}
+
+SOKOL_API_IMPL uint64_t stm_diff(uint64_t new_ticks, uint64_t old_ticks) {
+    if (new_ticks > old_ticks) {
+        return new_ticks - old_ticks;
+    }
+    else {
+        return 1;
+    }
+}
+
+SOKOL_API_IMPL uint64_t stm_since(uint64_t start_ticks) {
+    return stm_diff(stm_now(), start_ticks);
+}
+
+SOKOL_API_IMPL uint64_t stm_laptime(uint64_t* last_time) {
+    SOKOL_ASSERT(last_time);
+    uint64_t dt = 0;
+    uint64_t now = stm_now();
+    if (0 != *last_time) {
+        dt = stm_diff(now, *last_time);
+    }
+    *last_time = now;
+    return dt;
+}
+
+// first number is frame duration in ns, second number is tolerance in ns,
+// the resulting min/max values must not overlap!
+static const uint64_t _stm_refresh_rates[][2] = {
+    { 16666667, 1000000 },  //  60 Hz: 16.6667 +- 1ms
+    { 13888889,  250000 },  //  72 Hz: 13.8889 +- 0.25ms
+    { 13333333,  250000 },  //  75 Hz: 13.3333 +- 0.25ms
+    { 11764706,  250000 },  //  85 Hz: 11.7647 +- 0.25
+    { 11111111,  250000 },  //  90 Hz: 11.1111 +- 0.25ms
+    { 10000000,  500000 },  // 100 Hz: 10.0000 +- 0.5ms
+    {  8333333,  500000 },  // 120 Hz:  8.3333 +- 0.5ms
+    {  6944445,  500000 },  // 144 Hz:  6.9445 +- 0.5ms
+    {  4166667, 1000000 },  // 240 Hz:  4.1666 +- 1ms
+    {        0,       0 },  // keep the last element always at zero
+};
+
+SOKOL_API_IMPL uint64_t stm_round_to_common_refresh_rate(uint64_t ticks) {
+    uint64_t ns;
+    int i = 0;
+    while (0 != (ns = _stm_refresh_rates[i][0])) {
+        uint64_t tol = _stm_refresh_rates[i][1];
+        if ((ticks > (ns - tol)) && (ticks < (ns + tol))) {
+            return ns;
+        }
+        i++;
+    }
+    // fallthrough: didn't fit into any buckets
+    return ticks;
+}
+
+SOKOL_API_IMPL double stm_sec(uint64_t ticks) {
+    return (double)ticks / 1000000000.0;
+}
+
+SOKOL_API_IMPL double stm_ms(uint64_t ticks) {
+    return (double)ticks / 1000000.0;
+}
+
+SOKOL_API_IMPL double stm_us(uint64_t ticks) {
+    return (double)ticks / 1000.0;
+}
+
+SOKOL_API_IMPL double stm_ns(uint64_t ticks) {
+    return (double)ticks;
+}
+#endif /* SOKOL_TIME_IMPL */
+

thirdparty/sokol/debugtext/debugtext.odin

@@ -0,0 +1,740 @@
+// machine generated, do not edit
+
+package sokol_debugtext
+
+/*
+
+    sokol_debugtext.h   - simple ASCII debug text rendering on top of sokol_gfx.h
+
+    Project URL: https://github.com/floooh/sokol
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_DEBUGTEXT_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    The following defines are used by the implementation to select the
+    platform-specific embedded shader code (these are the same defines as
+    used by sokol_gfx.h and sokol_app.h):
+
+    SOKOL_GLCORE
+    SOKOL_GLES3
+    SOKOL_D3D11
+    SOKOL_METAL
+    SOKOL_WGPU
+
+    ...optionally provide the following macros to override defaults:
+
+    SOKOL_VSNPRINTF     - the function name of an alternative vsnprintf() function (default: vsnprintf)
+    SOKOL_ASSERT(c)     - your own assert macro (default: assert(c))
+    SOKOL_DEBUGTEXT_API_DECL    - public function declaration prefix (default: extern)
+    SOKOL_API_DECL      - same as SOKOL_DEBUGTEXT_API_DECL
+    SOKOL_API_IMPL      - public function implementation prefix (default: -)
+    SOKOL_UNREACHABLE() - a guard macro for unreachable code (default: assert(false))
+
+    If sokol_debugtext.h is compiled as a DLL, define the following before
+    including the declaration or implementation:
+
+    SOKOL_DLL
+
+    On Windows, SOKOL_DLL will define SOKOL_DEBUGTEXT_API_DECL as __declspec(dllexport)
+    or __declspec(dllimport) as needed.
+
+    Include the following headers before including sokol_debugtext.h:
+
+        sokol_gfx.h
+
+    FEATURES AND CONCEPTS
+    =====================
+    - renders 8-bit ASCII text as fixed-size 8x8 pixel characters
+    - comes with 6 embedded 8-bit home computer fonts (each taking up 2 KBytes)
+    - easily plug in your own fonts
+    - create multiple contexts for rendering text in different layers or render passes
+
+    STEP BY STEP
+    ============
+
+    --- to initialize sokol-debugtext, call sdtx_setup() *after* initializing
+        sokol-gfx:
+
+            sdtx_setup(&(sdtx_desc_t){ ... });
+
+        To see any warnings and errors, you should always install a logging callback.
+        The easiest way is via sokol_log.h:
+
+            #include "sokol_log.h"
+
+            sdtx_setup(&(sdtx_desc_t){
+                .logger.func = slog_func,
+            });
+
+    --- configure sokol-debugtext by populating the sdtx_desc_t struct:
+
+        .context_pool_size (default: 8)
+            The max number of text contexts that can be created.
+
+        .printf_buf_size (default: 4096)
+            The size of the internal text formatting buffer used by
+            sdtx_printf() and sdtx_vprintf().
+
+        .fonts (default: none)
+            An array of sdtx_font_desc_t structs used to configure the
+            fonts that can be used for rendering. To use all builtin
+            fonts call sdtx_setup() like this (in C99):
+
+            sdtx_setup(&(sdtx_desc_t){
+                .fonts = {
+                    [0] = sdtx_font_kc853(),
+                    [1] = sdtx_font_kc854(),
+                    [2] = sdtx_font_z1013(),
+                    [3] = sdtx_font_cpc(),
+                    [4] = sdtx_font_c64(),
+                    [5] = sdtx_font_oric()
+                }
+            });
+
+            For documentation on how to use you own font data, search
+            below for "USING YOUR OWN FONT DATA".
+
+        .context
+            The setup parameters for the default text context. This will
+            be active right after sdtx_setup(), or when calling
+            sdtx_set_context(SDTX_DEFAULT_CONTEXT):
+
+            .max_commands (default: 4096)
+                The max number of render commands that can be recorded
+                into the internal command buffer. This directly translates
+                to the number of render layer changes in a single frame.
+
+            .char_buf_size (default: 4096)
+                The number of characters that can be rendered per frame in this
+                context, defines the size of an internal fixed-size vertex
+                buffer.  Any additional characters will be silently ignored.
+
+            .canvas_width (default: 640)
+            .canvas_height (default: 480)
+                The 'virtual canvas size' in pixels. This defines how big
+                characters will be rendered relative to the default framebuffer
+                dimensions. Each character occupies a grid of 8x8 'virtual canvas
+                pixels' (so a virtual canvas size of 640x480 means that 80x60 characters
+                fit on the screen). For rendering in a resizeable window, you
+                should dynamically update the canvas size in each frame by
+                calling sdtx_canvas(w, h).
+
+            .tab_width (default: 4)
+                The width of a tab character in number of character cells.
+
+            .color_format (default: 0)
+            .depth_format (default: 0)
+            .sample_count (default: 0)
+                The pixel format description for the default context needed
+                for creating the context's sg_pipeline object. When
+                rendering to the default framebuffer you can leave those
+                zero-initialized, in this case the proper values will be
+                filled in by sokol-gfx. You only need to provide non-default
+                values here when rendering to render targets with different
+                pixel format attributes than the default framebuffer.
+
+    --- Before starting to render text, optionally call sdtx_canvas() to
+        dynamically resize the virtual canvas. This is recommended when
+        rendering to a resizeable window. The virtual canvas size can
+        also be used to scale text in relation to the display resolution.
+
+        Examples when using sokol-app:
+
+        - to render characters at 8x8 'physical pixels':
+
+            sdtx_canvas(sapp_width(), sapp_height());
+
+        - to render characters at 16x16 physical pixels:
+
+            sdtx_canvas(sapp_width()/2.0f, sapp_height()/2.0f);
+
+        Do *not* use integer math here, since this will not look nice
+        when the render target size isn't divisible by 2.
+
+    --- Optionally define the origin for the character grid with:
+
+            sdtx_origin(x, y);
+
+        The provided coordinates are in character grid cells, not in
+        virtual canvas pixels. E.g. to set the origin to 2 character tiles
+        from the left and top border:
+
+            sdtx_origin(2, 2);
+
+        You can define fractions, e.g. to start rendering half
+        a character tile from the top-left corner:
+
+            sdtx_origin(0.5f, 0.5f);
+
+    --- Optionally set a different font by calling:
+
+            sdtx_font(font_index)
+
+        sokol-debugtext provides 8 font slots which can be populated
+        with the builtin fonts or with user-provided font data, so
+        'font_index' must be a number from 0 to 7.
+
+    --- Position the text cursor with one of the following calls. All arguments
+        are in character grid cells as floats and relative to the
+        origin defined with sdtx_origin():
+
+            sdtx_pos(x, y)      - sets absolute cursor position
+            sdtx_pos_x(x)       - only set absolute x cursor position
+            sdtx_pos_y(y)       - only set absolute y cursor position
+
+            sdtx_move(x, y)     - move cursor relative in x and y direction
+            sdtx_move_x(x)      - move cursor relative only in x direction
+            sdtx_move_y(y)      - move cursor relative only in y direction
+
+            sdtx_crlf()         - set cursor to beginning of next line
+                                  (same as sdtx_pos_x(0) + sdtx_move_y(1))
+            sdtx_home()         - resets the cursor to the origin
+                                  (same as sdtx_pos(0, 0))
+
+    --- Set a new text color with any of the following functions:
+
+            sdtx_color3b(r, g, b)       - RGB 0..255, A=255
+            sdtx_color3f(r, g, b)       - RGB 0.0f..1.0f, A=1.0f
+            sdtx_color4b(r, g, b, a)    - RGBA 0..255
+            sdtx_color4f(r, g, b, a)    - RGBA 0.0f..1.0f
+            sdtx_color1i(uint32_t rgba) - ABGR (0xAABBGGRR)
+
+    --- Output 8-bit ASCII text with the following functions:
+
+            sdtx_putc(c)             - output a single character
+
+            sdtx_puts(str)           - output a null-terminated C string, note that
+                                       this will *not* append a newline (so it behaves
+                                       differently than the CRT's puts() function)
+
+            sdtx_putr(str, len)     - 'put range' output the first 'len' characters of
+                                       a C string or until the zero character is encountered
+
+            sdtx_printf(fmt, ...)   - output with printf-formatting, note that you
+                                      can inject your own printf-compatible function
+                                      by overriding the SOKOL_VSNPRINTF define before
+                                      including the implementation
+
+            sdtx_vprintf(fmt, args) - same as sdtx_printf() but with the arguments
+                                      provided in a va_list
+
+        - Note that the text will not yet be rendered, only recorded for rendering
+          at a later time, the actual rendering happens when sdtx_draw() is called
+          inside a sokol-gfx render pass.
+        - This means also you can output text anywhere in the frame, it doesn't
+          have to be inside a render pass.
+        - Note that character codes <32 are reserved as control characters
+          and won't render anything. Currently only the following control
+          characters are implemented:
+
+            \r  - carriage return (same as sdtx_pos_x(0))
+            \n  - carriage return + line feed (same as stdx_crlf())
+            \t  - a tab character
+
+    --- You can 'record' text into render layers, this allows to mix/interleave
+        sokol-debugtext rendering with other rendering operations inside
+        sokol-gfx render passes. To start recording text into a different render
+        layer, call:
+
+            sdtx_layer(int layer_id)
+
+        ...outside a sokol-gfx render pass.
+
+    --- finally, from within a sokol-gfx render pass, call:
+
+            sdtx_draw()
+
+        ...for non-layered rendering, or to draw a specific layer:
+
+            sdtx_draw_layer(int layer_id)
+
+        NOTE that sdtx_draw() is equivalent to:
+
+            sdtx_draw_layer(0)
+
+        ...so sdtx_draw() will *NOT* render all text layers, instead it will
+        only render the 'default layer' 0.
+
+    --- at the end of a frame (defined by the call to sg_commit()), sokol-debugtext
+        will rewind all contexts:
+
+            - the internal vertex index is set to 0
+            - the internal command index is set to 0
+            - the current layer id is set to 0
+            - the current font is set to 0
+            - the cursor position is reset
+
+
+    RENDERING WITH MULTIPLE CONTEXTS
+    ================================
+    Use multiple text contexts if you need to render debug text in different
+    sokol-gfx render passes, or want to render text to different layers
+    in the same render pass, each with its own set of parameters.
+
+    To create a new text context call:
+
+        sdtx_context ctx = sdtx_make_context(&(sdtx_context_desc_t){ ... });
+
+    The creation parameters in the sdtx_context_desc_t struct are the same
+    as already described above in the sdtx_setup() function:
+
+        .char_buf_size      -- max number of characters rendered in one frame, default: 4096
+        .canvas_width       -- the initial virtual canvas width, default: 640
+        .canvas_height      -- the initial virtual canvas height, default: 400
+        .tab_width          -- tab width in number of characters, default: 4
+        .color_format       -- color pixel format of target render pass
+        .depth_format       -- depth pixel format of target render pass
+        .sample_count       -- MSAA sample count of target render pass
+
+    To make a new context the active context, call:
+
+        sdtx_set_context(ctx)
+
+    ...and after that call the text output functions as described above, and
+    finally, inside a sokol-gfx render pass, call sdtx_draw() to actually
+    render the text for this context.
+
+    A context keeps track of the following parameters:
+
+        - the active font
+        - the virtual canvas size
+        - the origin position
+        - the current cursor position
+        - the current tab width
+        - the current color
+        - and the current layer-id
+
+    You can get the currently active context with:
+
+        sdtx_get_context()
+
+    To make the default context current, call sdtx_set_context() with the
+    special SDTX_DEFAULT_CONTEXT handle:
+
+        sdtx_set_context(SDTX_DEFAULT_CONTEXT)
+
+    Alternatively, use the function sdtx_default_context() to get the default
+    context handle:
+
+        sdtx_set_context(sdtx_default_context());
+
+    To destroy a context, call:
+
+        sdtx_destroy_context(ctx)
+
+    If a context is set as active that no longer exists, all sokol-debugtext
+    functions that require an active context will silently fail.
+
+    You can directly draw the recorded text in a specific context without
+    setting the active context:
+
+        sdtx_context_draw(ctx)
+        sdtx_context_draw_layer(ctx, layer_id)
+
+    USING YOUR OWN FONT DATA
+    ========================
+
+    Instead of the built-in fonts you can also plug your own font data
+    into sokol-debugtext by providing one or several sdtx_font_desc_t
+    structures in the sdtx_setup call.
+
+    For instance to use a built-in font at slot 0, and a user-font at
+    font slot 1, the sdtx_setup() call might look like this:
+
+        sdtx_setup(&sdtx_desc_t){
+            .fonts = {
+                [0] = sdtx_font_kc853(),
+                [1] = {
+                    .data = {
+                        .ptr = my_font_data,
+                        .size = sizeof(my_font_data)
+                    },
+                    .first_char = ...,
+                    .last_char = ...
+                }
+            }
+        });
+
+    Where 'my_font_data' is a byte array where every character is described
+    by 8 bytes arranged like this:
+
+        bits
+        7 6 5 4 3 2 1 0
+        . . . X X . . .     byte 0: 0x18
+        . . X X X X . .     byte 1: 0x3C
+        . X X . . X X .     byte 2: 0x66
+        . X X . . X X .     byte 3: 0x66
+        . X X X X X X .     byte 4: 0x7E
+        . X X . . X X .     byte 5: 0x66
+        . X X . . X X .     byte 6: 0x66
+        . . . . . . . .     byte 7: 0x00
+
+    A complete font consists of 256 characters, resulting in 2048 bytes for
+    the font data array (but note that the character codes 0..31 will never
+    be rendered).
+
+    If you provide such a complete font data array, you can drop the .first_char
+    and .last_char initialization parameters since those default to 0 and 255,
+    note that you can also use the SDTX_RANGE() helper macro to build the
+    .data item:
+
+        sdtx_setup(&sdtx_desc_t){
+            .fonts = {
+                [0] = sdtx_font_kc853(),
+                [1] = {
+                    .data = SDTX_RANGE(my_font_data)
+                }
+            }
+        });
+
+    If the font doesn't define all 256 character tiles, or you don't need an
+    entire 256-character font and want to save a couple of bytes, use the
+    .first_char and .last_char initialization parameters to define a sub-range.
+    For instance if the font only contains the characters between the Space
+    (ASCII code 32) and uppercase character 'Z' (ASCII code 90):
+
+        sdtx_setup(&sdtx_desc_t){
+            .fonts = {
+                [0] = sdtx_font_kc853(),
+                [1] = {
+                    .data = SDTX_RANGE(my_font_data),
+                    .first_char = 32,       // could also write ' '
+                    .last_char = 90         // could also write 'Z'
+                }
+            }
+        });
+
+    Character tiles that haven't been defined in the font will be rendered
+    as a solid 8x8 quad.
+
+
+    MEMORY ALLOCATION OVERRIDE
+    ==========================
+    You can override the memory allocation functions at initialization time
+    like this:
+
+        void* my_alloc(size_t size, void* user_data) {
+            return malloc(size);
+        }
+
+        void my_free(void* ptr, void* user_data) {
+            free(ptr);
+        }
+
+        ...
+            sdtx_setup(&(sdtx_desc_t){
+                // ...
+                .allocator = {
+                    .alloc_fn = my_alloc,
+                    .free_fn = my_free,
+                    .user_data = ...;
+                }
+            });
+        ...
+
+    If no overrides are provided, malloc and free will be used.
+
+
+    ERROR REPORTING AND LOGGING
+    ===========================
+    To get any logging information at all you need to provide a logging callback in the setup call,
+    the easiest way is to use sokol_log.h:
+
+        #include "sokol_log.h"
+
+        sdtx_setup(&(sdtx_desc_t){
+            // ...
+            .logger.func = slog_func
+        });
+
+    To override logging with your own callback, first write a logging function like this:
+
+        void my_log(const char* tag,                // e.g. 'sdtx'
+                    uint32_t log_level,             // 0=panic, 1=error, 2=warn, 3=info
+                    uint32_t log_item_id,           // SDTX_LOGITEM_*
+                    const char* message_or_null,    // a message string, may be nullptr in release mode
+                    uint32_t line_nr,               // line number in sokol_debugtext.h
+                    const char* filename_or_null,   // source filename, may be nullptr in release mode
+                    void* user_data)
+        {
+            ...
+        }
+
+    ...and then setup sokol-debugtext like this:
+
+        sdtx_setup(&(sdtx_desc_t){
+            .logger = {
+                .func = my_log,
+                .user_data = my_user_data,
+            }
+        });
+
+    The provided logging function must be reentrant (e.g. be callable from
+    different threads).
+
+    If you don't want to provide your own custom logger it is highly recommended to use
+    the standard logger in sokol_log.h instead, otherwise you won't see any warnings or
+    errors.
+
+
+    LICENSE
+    =======
+    zlib/libpng license
+
+    Copyright (c) 2020 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+
+*/
+import sg "../gfx"
+
+import "core:fmt"
+import "core:strings"
+printf :: proc(s: string, args: ..any) {
+    fstr := fmt.tprintf(s, ..args)
+    putr(strings.unsafe_string_to_cstring(fstr), len(fstr))
+}
+import "core:c"
+
+_ :: c
+
+SOKOL_DEBUG :: #config(SOKOL_DEBUG, ODIN_DEBUG)
+
+DEBUG :: #config(SOKOL_DEBUGTEXT_DEBUG, SOKOL_DEBUG)
+USE_GL :: #config(SOKOL_USE_GL, false)
+USE_DLL :: #config(SOKOL_DLL, false)
+
+when ODIN_OS == .Windows {
+    when USE_DLL {
+        when USE_GL {
+            when DEBUG { foreign import sokol_debugtext_clib { "../sokol_dll_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_debugtext_clib { "../sokol_dll_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_debugtext_clib { "../sokol_dll_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_debugtext_clib { "../sokol_dll_windows_x64_d3d11_release.lib" } }
+        }
+    } else {
+        when USE_GL {
+            when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_debugtext_clib { "sokol_debugtext_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_debugtext_clib { "sokol_debugtext_windows_x64_d3d11_release.lib" } }
+        }
+    }
+} else when ODIN_OS == .Darwin {
+    when USE_DLL {
+             when  USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_arm64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_arm64_gl_release.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_x64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_x64_gl_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_arm64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_arm64_metal_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_x64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_debugtext_clib { "../dylib/sokol_dylib_macos_x64_metal_release.dylib" } }
+    } else {
+        when USE_GL {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_arm64_gl_debug.a" } }
+                else       { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_arm64_gl_release.a" } }
+            } else {
+                when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_x64_gl_debug.a" } }
+                else       { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_x64_gl_release.a" } }
+            }
+        } else {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_arm64_metal_debug.a" } }
+                else       { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_arm64_metal_release.a" } }
+            } else {
+                when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_x64_metal_debug.a" } }
+                else       { foreign import sokol_debugtext_clib { "sokol_debugtext_macos_x64_metal_release.a" } }
+            }
+        }
+    }
+} else when ODIN_OS == .Linux {
+    when USE_DLL {
+        when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_linux_x64_gl_debug.so" } }
+        else       { foreign import sokol_debugtext_clib { "sokol_debugtext_linux_x64_gl_release.so" } }
+    } else {
+        when DEBUG { foreign import sokol_debugtext_clib { "sokol_debugtext_linux_x64_gl_debug.a" } }
+        else       { foreign import sokol_debugtext_clib { "sokol_debugtext_linux_x64_gl_release.a" } }
+    }
+} else when ODIN_ARCH == .wasm32 || ODIN_ARCH == .wasm64p32 {
+    // Feed sokol_debugtext_wasm_gl_debug.a or sokol_debugtext_wasm_gl_release.a into emscripten compiler.
+    foreign import sokol_debugtext_clib { "env.o" }
+} else {
+    #panic("This OS is currently not supported")
+}
+
+@(default_calling_convention="c", link_prefix="sdtx_")
+foreign sokol_debugtext_clib {
+    // initialization/shutdown
+    setup :: proc(#by_ptr desc: Desc)  ---
+    shutdown :: proc()  ---
+    // builtin font data (use to populate sdtx_desc.font[])
+    font_kc853 :: proc() -> Font_Desc ---
+    font_kc854 :: proc() -> Font_Desc ---
+    font_z1013 :: proc() -> Font_Desc ---
+    font_cpc :: proc() -> Font_Desc ---
+    font_c64 :: proc() -> Font_Desc ---
+    font_oric :: proc() -> Font_Desc ---
+    // context functions
+    make_context :: proc(#by_ptr desc: Context_Desc) -> Context ---
+    destroy_context :: proc(ctx: Context)  ---
+    set_context :: proc(ctx: Context)  ---
+    get_context :: proc() -> Context ---
+    default_context :: proc() -> Context ---
+    // drawing functions (call inside sokol-gfx render pass)
+    draw :: proc()  ---
+    context_draw :: proc(ctx: Context)  ---
+    draw_layer :: proc(#any_int layer_id: c.int)  ---
+    context_draw_layer :: proc(ctx: Context, #any_int layer_id: c.int)  ---
+    // switch render layer
+    layer :: proc(#any_int layer_id: c.int)  ---
+    // switch to a different font
+    font :: proc(#any_int font_index: c.int)  ---
+    // set a new virtual canvas size in screen pixels
+    canvas :: proc(w: f32, h: f32)  ---
+    // set a new origin in character grid coordinates
+    origin :: proc(x: f32, y: f32)  ---
+    // cursor movement functions (relative to origin in character grid coordinates)
+    home :: proc()  ---
+    pos :: proc(x: f32, y: f32)  ---
+    pos_x :: proc(x: f32)  ---
+    pos_y :: proc(y: f32)  ---
+    move :: proc(dx: f32, dy: f32)  ---
+    move_x :: proc(dx: f32)  ---
+    move_y :: proc(dy: f32)  ---
+    crlf :: proc()  ---
+    // set the current text color
+    color3b :: proc(r: u8, g: u8, b: u8)  ---
+    color3f :: proc(r: f32, g: f32, b: f32)  ---
+    color4b :: proc(r: u8, g: u8, b: u8, a: u8)  ---
+    color4f :: proc(r: f32, g: f32, b: f32, a: f32)  ---
+    color1i :: proc(rgba: u32)  ---
+    // text rendering
+    putc :: proc(c: u8)  ---
+    puts :: proc(str: cstring)  ---
+    putr :: proc(str: cstring, #any_int len: c.int)  ---
+}
+
+Log_Item :: enum i32 {
+    OK,
+    MALLOC_FAILED,
+    ADD_COMMIT_LISTENER_FAILED,
+    COMMAND_BUFFER_FULL,
+    CONTEXT_POOL_EXHAUSTED,
+    CANNOT_DESTROY_DEFAULT_CONTEXT,
+}
+
+/*
+    sdtx_logger_t
+
+    Used in sdtx_desc_t to provide a custom logging and error reporting
+    callback to sokol-debugtext.
+*/
+Logger :: struct {
+    func : proc "c" (a0: cstring, a1: u32, a2: u32, a3: cstring, a4: u32, a5: cstring, a6: rawptr),
+    user_data : rawptr,
+}
+
+// a rendering context handle
+Context :: struct {
+    id : u32,
+}
+
+/*
+    sdtx_range is a pointer-size-pair struct used to pass memory
+    blobs into sokol-debugtext. When initialized from a value type
+    (array or struct), use the SDTX_RANGE() macro to build
+    an sdtx_range struct.
+*/
+Range :: struct {
+    ptr : rawptr,
+    size : c.size_t,
+}
+
+Font_Desc :: struct {
+    data : Range,
+    first_char : u8,
+    last_char : u8,
+}
+
+/*
+    sdtx_context_desc_t
+
+    Describes the initialization parameters of a rendering context. Creating
+    additional rendering contexts is useful if you want to render in
+    different sokol-gfx rendering passes, or when rendering several layers
+    of text.
+*/
+Context_Desc :: struct {
+    max_commands : c.int,
+    char_buf_size : c.int,
+    canvas_width : f32,
+    canvas_height : f32,
+    tab_width : c.int,
+    color_format : sg.Pixel_Format,
+    depth_format : sg.Pixel_Format,
+    sample_count : c.int,
+}
+
+/*
+    sdtx_allocator_t
+
+    Used in sdtx_desc_t to provide custom memory-alloc and -free functions
+    to sokol_debugtext.h. If memory management should be overridden, both the
+    alloc_fn and free_fn function must be provided (e.g. it's not valid to
+    override one function but not the other).
+*/
+Allocator :: struct {
+    alloc_fn : proc "c" (a0: c.size_t, a1: rawptr) -> rawptr,
+    free_fn : proc "c" (a0: rawptr, a1: rawptr),
+    user_data : rawptr,
+}
+
+/*
+    sdtx_desc_t
+
+    Describes the sokol-debugtext API initialization parameters. Passed
+    to the sdtx_setup() function.
+
+    NOTE: to populate the fonts item array with builtin fonts, use any
+    of the following functions:
+
+        sdtx_font_kc853()
+        sdtx_font_kc854()
+        sdtx_font_z1013()
+        sdtx_font_cpc()
+        sdtx_font_c64()
+        sdtx_font_oric()
+*/
+Desc :: struct {
+    context_pool_size : c.int,
+    printf_buf_size : c.int,
+    fonts : [8]Font_Desc,
+    ctx : Context_Desc,
+    allocator : Allocator,
+    logger : Logger,
+}
+

thirdparty/sokol/gl/gl.odin

@@ -0,0 +1,962 @@
+// machine generated, do not edit
+
+package sokol_gl
+
+/*
+
+    sokol_gl.h -- OpenGL 1.x style rendering on top of sokol_gfx.h
+
+    Project URL: https://github.com/floooh/sokol
+
+    Do this:
+        #define SOKOL_IMPL or
+        #define SOKOL_GL_IMPL
+    before you include this file in *one* C or C++ file to create the
+    implementation.
+
+    The following defines are used by the implementation to select the
+    platform-specific embedded shader code (these are the same defines as
+    used by sokol_gfx.h and sokol_app.h):
+
+    SOKOL_GLCORE
+    SOKOL_GLES3
+    SOKOL_D3D11
+    SOKOL_METAL
+    SOKOL_WGPU
+
+    ...optionally provide the following macros to override defaults:
+
+    SOKOL_ASSERT(c)     - your own assert macro (default: assert(c))
+    SOKOL_GL_API_DECL   - public function declaration prefix (default: extern)
+    SOKOL_API_DECL      - same as SOKOL_GL_API_DECL
+    SOKOL_API_IMPL      - public function implementation prefix (default: -)
+    SOKOL_UNREACHABLE() - a guard macro for unreachable code (default: assert(false))
+
+    If sokol_gl.h is compiled as a DLL, define the following before
+    including the declaration or implementation:
+
+    SOKOL_DLL
+
+    On Windows, SOKOL_DLL will define SOKOL_GL_API_DECL as __declspec(dllexport)
+    or __declspec(dllimport) as needed.
+
+    Include the following headers before including sokol_gl.h:
+
+        sokol_gfx.h
+
+    Matrix functions have been taken from MESA and Regal.
+
+    FEATURE OVERVIEW:
+    =================
+    sokol_gl.h implements a subset of the OpenGLES 1.x feature set useful for
+    when you just want to quickly render a bunch of triangles or
+    lines without having to mess with buffers and shaders.
+
+    The current feature set is mostly useful for debug visualizations
+    and simple UI-style 2D rendering:
+
+    What's implemented:
+        - vertex components:
+            - position (x, y, z)
+            - 2D texture coords (u, v)
+            - color (r, g, b, a)
+        - primitive types:
+            - triangle list and strip
+            - line list and strip
+            - quad list (TODO: quad strips)
+            - point list
+        - one texture layer (no multi-texturing)
+        - viewport and scissor-rect with selectable origin (top-left or bottom-left)
+        - all GL 1.x matrix stack functions, and additionally equivalent
+          functions for gluPerspective and gluLookat
+
+    Notable GLES 1.x features that are *NOT* implemented:
+        - vertex lighting (this is the most likely GL feature that might be added later)
+        - vertex arrays (although providing whole chunks of vertex data at once
+          might be a useful feature for a later version)
+        - texture coordinate generation
+        - line width
+        - all pixel store functions
+        - no ALPHA_TEST
+        - no clear functions (clearing is handled by the sokol-gfx render pass)
+        - fog
+
+    Notable differences to GL:
+        - No "enum soup" for render states etc, instead there's a
+          'pipeline stack', this is similar to GL's matrix stack,
+          but for pipeline-state-objects. The pipeline object at
+          the top of the pipeline stack defines the active set of render states
+        - All angles are in radians, not degrees (note the sgl_rad() and
+          sgl_deg() conversion functions)
+        - No enable/disable state for scissor test, this is always enabled
+
+    STEP BY STEP:
+    =============
+    --- To initialize sokol-gl, call:
+
+            sgl_setup(const sgl_desc_t* desc)
+
+        NOTE that sgl_setup() must be called *after* initializing sokol-gfx
+        (via sg_setup). This is because sgl_setup() needs to create
+        sokol-gfx resource objects.
+
+        If you're intending to render to the default pass, and also don't
+        want to tweak memory usage, and don't want any logging output you can
+        just keep sgl_desc_t zero-initialized:
+
+            sgl_setup(&(sgl_desc_t*){ 0 });
+
+        In this case, sokol-gl will create internal sg_pipeline objects that
+        are compatible with the sokol-app default framebuffer.
+
+        I would recommend to at least install a logging callback so that
+        you'll see any warnings and errors. The easiest way is through
+        sokol_log.h:
+
+            #include "sokol_log.h"
+
+            sgl_setup(&(sgl_desc_t){
+                .logger.func = slog_func.
+            });
+
+        If you want to render into a framebuffer with different pixel-format
+        and MSAA attributes you need to provide the matching attributes in the
+        sgl_setup() call:
+
+            sgl_setup(&(sgl_desc_t*){
+                .color_format = SG_PIXELFORMAT_...,
+                .depth_format = SG_PIXELFORMAT_...,
+                .sample_count = ...,
+            });
+
+        To reduce memory usage, or if you need to create more then the default number of
+        contexts, pipelines, vertices or draw commands, set the following sgl_desc_t
+        members:
+
+            .context_pool_size      (default: 4)
+            .pipeline_pool_size     (default: 64)
+            .max_vertices       (default: 64k)
+            .max_commands       (default: 16k)
+
+        Finally you can change the face winding for front-facing triangles
+        and quads:
+
+            .face_winding    - default is SG_FACEWINDING_CCW
+
+        The default winding for front faces is counter-clock-wise. This is
+        the same as OpenGL's default, but different from sokol-gfx.
+
+    --- Optionally create additional context objects if you want to render into
+        multiple sokol-gfx render passes (or generally if you want to
+        use multiple independent sokol-gl "state buckets")
+
+            sgl_context ctx = sgl_make_context(const sgl_context_desc_t* desc)
+
+        For details on rendering with sokol-gl contexts, search below for
+        WORKING WITH CONTEXTS.
+
+    --- Optionally create pipeline-state-objects if you need render state
+        that differs from sokol-gl's default state:
+
+            sgl_pipeline pip = sgl_make_pipeline(const sg_pipeline_desc* desc)
+
+        ...this creates a pipeline object that's compatible with the currently
+        active context, alternatively call:
+
+            sgl_pipeline_pip = sgl_context_make_pipeline(sgl_context ctx, const sg_pipeline_desc* desc)
+
+        ...to create a pipeline object that's compatible with an explicitly
+        provided context.
+
+        The similarity with sokol_gfx.h's sg_pipeline type and sg_make_pipeline()
+        function is intended. sgl_make_pipeline() also takes a standard
+        sokol-gfx sg_pipeline_desc object to describe the render state, but
+        without:
+            - shader
+            - vertex layout
+            - color- and depth-pixel-formats
+            - primitive type (lines, triangles, ...)
+            - MSAA sample count
+        Those will be filled in by sgl_make_pipeline(). Note that each
+        call to sgl_make_pipeline() needs to create several sokol-gfx
+        pipeline objects (one for each primitive type).
+
+        'depth.write_enabled' will be forced to 'false' if the context this
+        pipeline object is intended for has its depth pixel format set to
+        SG_PIXELFORMAT_NONE (which means the framebuffer this context is used
+        with doesn't have a depth-stencil surface).
+
+    --- if you need to destroy sgl_pipeline objects before sgl_shutdown():
+
+            sgl_destroy_pipeline(sgl_pipeline pip)
+
+    --- After sgl_setup() you can call any of the sokol-gl functions anywhere
+        in a frame, *except* sgl_draw(). The 'vanilla' functions
+        will only change internal sokol-gl state, and not call any sokol-gfx
+        functions.
+
+    --- Unlike OpenGL, sokol-gl has a function to reset internal state to
+        a known default. This is useful at the start of a sequence of
+        rendering operations:
+
+            void sgl_defaults(void)
+
+        This will set the following default state:
+
+            - current texture coordinate to u=0.0f, v=0.0f
+            - current color to white (rgba all 1.0f)
+            - current point size to 1.0f
+            - unbind the current texture and texturing will be disabled
+            - *all* matrices will be set to identity (also the projection matrix)
+            - the default render state will be set by loading the 'default pipeline'
+              into the top of the pipeline stack
+
+        The current matrix- and pipeline-stack-depths will not be changed by
+        sgl_defaults().
+
+    --- change the currently active renderstate through the
+        pipeline-stack functions, this works similar to the
+        traditional GL matrix stack:
+
+            ...load the default pipeline state on the top of the pipeline stack:
+
+                sgl_load_default_pipeline()
+
+            ...load a specific pipeline on the top of the pipeline stack:
+
+                sgl_load_pipeline(sgl_pipeline pip)
+
+            ...push and pop the pipeline stack:
+                sgl_push_pipeline()
+                sgl_pop_pipeline()
+
+    --- control texturing with:
+
+            sgl_enable_texture()
+            sgl_disable_texture()
+            sgl_texture(sg_image img, sg_sampler smp)
+
+        NOTE: the img and smp handles can be invalid (SG_INVALID_ID), in this
+        case, sokol-gl will fall back to the internal default (white) texture
+        and sampler.
+
+    --- set the current viewport and scissor rect with:
+
+            sgl_viewport(int x, int y, int w, int h, bool origin_top_left)
+            sgl_scissor_rect(int x, int y, int w, int h, bool origin_top_left)
+
+        ...or call these alternatives which take float arguments (this might allow
+        to avoid casting between float and integer in more strongly typed languages
+        when floating point pixel coordinates are used):
+
+            sgl_viewportf(float x, float y, float w, float h, bool origin_top_left)
+            sgl_scissor_rectf(float x, float y, float w, float h, bool origin_top_left)
+
+        ...these calls add a new command to the internal command queue, so
+        that the viewport or scissor rect are set at the right time relative
+        to other sokol-gl calls.
+
+    --- adjust the transform matrices, matrix manipulation works just like
+        the OpenGL matrix stack:
+
+        ...set the current matrix mode:
+
+            sgl_matrix_mode_modelview()
+            sgl_matrix_mode_projection()
+            sgl_matrix_mode_texture()
+
+        ...load the identity matrix into the current matrix:
+
+            sgl_load_identity()
+
+        ...translate, rotate and scale the current matrix:
+
+            sgl_translate(float x, float y, float z)
+            sgl_rotate(float angle_rad, float x, float y, float z)
+            sgl_scale(float x, float y, float z)
+
+        NOTE that all angles in sokol-gl are in radians, not in degree.
+        Convert between radians and degree with the helper functions:
+
+            float sgl_rad(float deg)        - degrees to radians
+            float sgl_deg(float rad)        - radians to degrees
+
+        ...directly load the current matrix from a float[16] array:
+
+            sgl_load_matrix(const float m[16])
+            sgl_load_transpose_matrix(const float m[16])
+
+        ...directly multiply the current matrix from a float[16] array:
+
+            sgl_mult_matrix(const float m[16])
+            sgl_mult_transpose_matrix(const float m[16])
+
+        The memory layout of those float[16] arrays is the same as in OpenGL.
+
+        ...more matrix functions:
+
+            sgl_frustum(float left, float right, float bottom, float top, float near, float far)
+            sgl_ortho(float left, float right, float bottom, float top, float near, float far)
+            sgl_perspective(float fov_y, float aspect, float near, float far)
+            sgl_lookat(float eye_x, float eye_y, float eye_z, float center_x, float center_y, float center_z, float up_x, float up_y, float up_z)
+
+        These functions work the same as glFrustum(), glOrtho(), gluPerspective()
+        and gluLookAt().
+
+        ...and finally to push / pop the current matrix stack:
+
+            sgl_push_matrix(void)
+            sgl_pop_matrix(void)
+
+        Again, these work the same as glPushMatrix() and glPopMatrix().
+
+    --- perform primitive rendering:
+
+        ...set the current texture coordinate and color 'registers' with or
+        point size with:
+
+            sgl_t2f(float u, float v)   - set current texture coordinate
+            sgl_c*(...)                 - set current color
+            sgl_point_size(float size)  - set current point size
+
+        There are several functions for setting the color (as float values,
+        unsigned byte values, packed as unsigned 32-bit integer, with
+        and without alpha).
+
+        NOTE that these are the only functions that can be called both inside
+        sgl_begin_*() / sgl_end() and outside.
+
+        Also NOTE that point size is currently hardwired to 1.0f if the D3D11
+        backend is used.
+
+        ...start a primitive vertex sequence with:
+
+            sgl_begin_points()
+            sgl_begin_lines()
+            sgl_begin_line_strip()
+            sgl_begin_triangles()
+            sgl_begin_triangle_strip()
+            sgl_begin_quads()
+
+        ...after sgl_begin_*() specify vertices:
+
+            sgl_v*(...)
+            sgl_v*_t*(...)
+            sgl_v*_c*(...)
+            sgl_v*_t*_c*(...)
+
+        These functions write a new vertex to sokol-gl's internal vertex buffer,
+        optionally with texture-coords and color. If the texture coordinate
+        and/or color is missing, it will be taken from the current texture-coord
+        and color 'register'.
+
+        ...finally, after specifying vertices, call:
+
+            sgl_end()
+
+        This will record a new draw command in sokol-gl's internal command
+        list, or it will extend the previous draw command if no relevant
+        state has changed since the last sgl_begin/end pair.
+
+    --- inside a sokol-gfx rendering pass, call the sgl_draw() function
+        to render the currently active context:
+
+            sgl_draw()
+
+        ...or alternatively call:
+
+            sgl_context_draw(ctx)
+
+        ...to render an explicitly provided context.
+
+        This will render everything that has been recorded in the context since
+        the last call to sgl_draw() through sokol-gfx, and will 'rewind' the internal
+        vertex-, uniform- and command-buffers.
+
+    --- each sokol-gl context tracks internal error states which can
+        be obtains via:
+
+            sgl_error_t sgl_error()
+
+        ...alternatively with an explicit context argument:
+
+            sgl_error_t sgl_context_error(ctx);
+
+        ...this returns a struct with the following booleans:
+
+            .any                - true if any of the below errors is true
+            .vertices_full      - internal vertex buffer is full (checked in sgl_end())
+            .uniforms_full      - the internal uniforms buffer is full (checked in sgl_end())
+            .commands_full      - the internal command buffer is full (checked in sgl_end())
+            .stack_overflow     - matrix- or pipeline-stack overflow
+            .stack_underflow    - matrix- or pipeline-stack underflow
+            .no_context         - the active context no longer exists
+
+        ...depending on the above error state, sgl_draw() may skip rendering
+        completely, or only draw partial geometry
+
+    --- you can get the number of recorded vertices and draw commands in the current
+        frame and active sokol-gl context via:
+
+            int sgl_num_vertices()
+            int sgl_num_commands()
+
+        ...this allows you to check whether the vertex or command pools are running
+        full before the overflow actually happens (in this case you could also
+        check the error booleans in the result of sgl_error()).
+
+    RENDER LAYERS
+    =============
+    Render layers allow to split sokol-gl rendering into separate draw-command
+    groups which can then be rendered separately in a sokol-gfx draw pass. This
+    allows to mix/interleave sokol-gl rendering with other render operations.
+
+    Layered rendering is controlled through two functions:
+
+        sgl_layer(int layer_id)
+        sgl_draw_layer(int layer_id)
+
+    (and the context-variant sgl_draw_layer(): sgl_context_draw_layer()
+
+    The sgl_layer() function sets the 'current layer', any sokol-gl calls
+    which internally record draw commands will also store the current layer
+    in the draw command, and later in a sokol-gfx render pass, a call
+    to sgl_draw_layer() will only render the draw commands that have
+    a matching layer.
+
+    The default layer is '0', this is active after sokol-gl setup, and
+    is also restored at the start of a new frame (but *not* by calling
+    sgl_defaults()).
+
+    NOTE that calling sgl_draw() is equivalent with sgl_draw_layer(0)
+    (in general you should either use either use sgl_draw() or
+    sgl_draw_layer() in an application, but not both).
+
+    WORKING WITH CONTEXTS:
+    ======================
+    If you want to render to more than one sokol-gfx render pass you need to
+    work with additional sokol-gl context objects (one context object for
+    each offscreen rendering pass, in addition to the implicitly created
+    'default context'.
+
+    All sokol-gl state is tracked per context, and there is always a "current
+    context" (with the notable exception that the currently set context is
+    destroyed, more on that later).
+
+    Using multiple contexts can also be useful if you only render in
+    a single pass, but want to maintain multiple independent "state buckets".
+
+    To create new context object, call:
+
+        sgl_context ctx = sgl_make_context(&(sgl_context_desc){
+            .max_vertices = ...,        // default: 64k
+            .max_commands = ...,        // default: 16k
+            .color_format = ...,
+            .depth_format = ...,
+            .sample_count = ...,
+        });
+
+    The color_format, depth_format and sample_count items must be compatible
+    with the render pass the sgl_draw() or sgL_context_draw() function
+    will be called in.
+
+    Creating a context does *not* make the context current. To do this, call:
+
+        sgl_set_context(ctx);
+
+    The currently active context will implicitly be used by most sokol-gl functions
+    which don't take an explicit context handle as argument.
+
+    To switch back to the default context, pass the global constant SGL_DEFAULT_CONTEXT:
+
+        sgl_set_context(SGL_DEFAULT_CONTEXT);
+
+    ...or alternatively use the function sgl_default_context() instead of the
+    global constant:
+
+        sgl_set_context(sgl_default_context());
+
+    To get the currently active context, call:
+
+        sgl_context cur_ctx = sgl_get_context();
+
+    The following functions exist in two variants, one which use the currently
+    active context (set with sgl_set_context()), and another version which
+    takes an explicit context handle instead:
+
+        sgl_make_pipeline() vs sgl_context_make_pipeline()
+        sgl_error() vs sgl_context_error();
+        sgl_draw() vs sgl_context_draw();
+
+    Except for using the currently active context versus a provided context
+    handle, the two variants are exactlyidentical, e.g. the following
+    code sequences do the same thing:
+
+        sgl_set_context(ctx);
+        sgl_pipeline pip = sgl_make_pipeline(...);
+        sgl_error_t err = sgl_error();
+        sgl_draw();
+
+        vs
+
+        sgl_pipeline pip = sgl_context_make_pipeline(ctx, ...);
+        sgl_error_t err = sgl_context_error(ctx);
+        sgl_context_draw(ctx);
+
+    Destroying the currently active context is a 'soft error'. All following
+    calls which require a currently active context will silently fail,
+    and sgl_error() will return SGL_ERROR_NO_CONTEXT.
+
+    UNDER THE HOOD:
+    ===============
+    sokol_gl.h works by recording vertex data and rendering commands into
+    memory buffers, and then drawing the recorded commands via sokol_gfx.h
+
+    The only functions which call into sokol_gfx.h are:
+        - sgl_setup()
+        - sgl_shutdown()
+        - sgl_draw() (and variants)
+
+    sgl_setup() must be called after initializing sokol-gfx.
+    sgl_shutdown() must be called before shutting down sokol-gfx.
+    sgl_draw() must be called once per frame inside a sokol-gfx render pass.
+
+    All other sokol-gl function can be called anywhere in a frame, since
+    they just record data into memory buffers owned by sokol-gl.
+
+    What happens in:
+
+        sgl_setup():
+            Unique resources shared by all contexts are created:
+                - a shader object (using embedded shader source or byte code)
+                - an 8x8 white default texture
+            The default context is created, which involves:
+                - 3 memory buffers are created, one for vertex data,
+                  one for uniform data, and one for commands
+                - a dynamic vertex buffer is created
+                - the default sgl_pipeline object is created, which involves
+                  creating 5 sg_pipeline objects
+
+            One vertex is 24 bytes:
+                - float3 position
+                - float2 texture coords
+                - uint32_t color
+
+            One uniform block is 128 bytes:
+                - mat4 model-view-projection matrix
+                - mat4 texture matrix
+
+            One draw command is ca. 24 bytes for the actual
+            command code plus command arguments.
+
+            Each sgl_end() consumes one command, and one uniform block
+            (only when the matrices have changed).
+            The required size for one sgl_begin/end pair is (at most):
+
+                (152 + 24 * num_verts) bytes
+
+        sgl_shutdown():
+            - all sokol-gfx resources (buffer, shader, default-texture and
+              all pipeline objects) are destroyed
+            - the 3 memory buffers are freed
+
+        sgl_draw() (and variants)
+            - copy all recorded vertex data into the dynamic sokol-gfx buffer
+              via a call to sg_update_buffer()
+            - for each recorded command:
+                - if the layer number stored in the command doesn't match
+                  the layer that's to be rendered, skip to the next
+                  command
+                - if it's a viewport command, call sg_apply_viewport()
+                - if it's a scissor-rect command, call sg_apply_scissor_rect()
+                - if it's a draw command:
+                    - depending on what has changed since the last draw command,
+                      call sg_apply_pipeline(), sg_apply_bindings() and
+                      sg_apply_uniforms()
+                    - finally call sg_draw()
+
+    All other functions only modify the internally tracked state, add
+    data to the vertex, uniform and command buffers, or manipulate
+    the matrix stack.
+
+    ON DRAW COMMAND MERGING
+    =======================
+    Not every call to sgl_end() will automatically record a new draw command.
+    If possible, the previous draw command will simply be extended,
+    resulting in fewer actual draw calls later in sgl_draw().
+
+    A draw command will be merged with the previous command if "no relevant
+    state has changed" since the last sgl_end(), meaning:
+
+    - no calls to sgl_viewport() and sgl_scissor_rect()
+    - the primitive type hasn't changed
+    - the primitive type isn't a 'strip type' (no line or triangle strip)
+    - the pipeline state object hasn't changed
+    - the current layer hasn't changed
+    - none of the matrices has changed
+    - none of the texture state has changed
+
+    Merging a draw command simply means that the number of vertices
+    to render in the previous draw command will be incremented by the
+    number of vertices in the new draw command.
+
+    MEMORY ALLOCATION OVERRIDE
+    ==========================
+    You can override the memory allocation functions at initialization time
+    like this:
+
+        void* my_alloc(size_t size, void* user_data) {
+            return malloc(size);
+        }
+
+        void my_free(void* ptr, void* user_data) {
+            free(ptr);
+        }
+
+        ...
+            sgl_setup(&(sgl_desc_t){
+                // ...
+                .allocator = {
+                    .alloc_fn = my_alloc,
+                    .free_fn = my_free,
+                    .user_data = ...;
+                }
+            });
+        ...
+
+    If no overrides are provided, malloc and free will be used.
+
+
+    ERROR REPORTING AND LOGGING
+    ===========================
+    To get any logging information at all you need to provide a logging callback in the setup call,
+    the easiest way is to use sokol_log.h:
+
+        #include "sokol_log.h"
+
+        sgl_setup(&(sgl_desc_t){
+            // ...
+            .logger.func = slog_func
+        });
+
+    To override logging with your own callback, first write a logging function like this:
+
+        void my_log(const char* tag,                // e.g. 'sgl'
+                    uint32_t log_level,             // 0=panic, 1=error, 2=warn, 3=info
+                    uint32_t log_item_id,           // SGL_LOGITEM_*
+                    const char* message_or_null,    // a message string, may be nullptr in release mode
+                    uint32_t line_nr,               // line number in sokol_gl.h
+                    const char* filename_or_null,   // source filename, may be nullptr in release mode
+                    void* user_data)
+        {
+            ...
+        }
+
+    ...and then setup sokol-gl like this:
+
+        sgl_setup(&(sgl_desc_t){
+            .logger = {
+                .func = my_log,
+                .user_data = my_user_data,
+            }
+        });
+
+    The provided logging function must be reentrant (e.g. be callable from
+    different threads).
+
+    If you don't want to provide your own custom logger it is highly recommended to use
+    the standard logger in sokol_log.h instead, otherwise you won't see any warnings or
+    errors.
+
+
+    LICENSE
+    =======
+    zlib/libpng license
+
+    Copyright (c) 2018 Andre Weissflog
+
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+        1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software in a
+        product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must not
+        be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any source
+        distribution.
+
+*/
+import sg "../gfx"
+
+import "core:c"
+
+_ :: c
+
+SOKOL_DEBUG :: #config(SOKOL_DEBUG, ODIN_DEBUG)
+
+DEBUG :: #config(SOKOL_GL_DEBUG, SOKOL_DEBUG)
+USE_GL :: #config(SOKOL_USE_GL, false)
+USE_DLL :: #config(SOKOL_DLL, false)
+
+when ODIN_OS == .Windows {
+    when USE_DLL {
+        when USE_GL {
+            when DEBUG { foreign import sokol_gl_clib { "../sokol_dll_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_gl_clib { "../sokol_dll_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_gl_clib { "../sokol_dll_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_gl_clib { "../sokol_dll_windows_x64_d3d11_release.lib" } }
+        }
+    } else {
+        when USE_GL {
+            when DEBUG { foreign import sokol_gl_clib { "sokol_gl_windows_x64_gl_debug.lib" } }
+            else       { foreign import sokol_gl_clib { "sokol_gl_windows_x64_gl_release.lib" } }
+        } else {
+            when DEBUG { foreign import sokol_gl_clib { "sokol_gl_windows_x64_d3d11_debug.lib" } }
+            else       { foreign import sokol_gl_clib { "sokol_gl_windows_x64_d3d11_release.lib" } }
+        }
+    }
+} else when ODIN_OS == .Darwin {
+    when USE_DLL {
+             when  USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_arm64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_arm64_gl_release.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_x64_gl_debug.dylib" } }
+        else when  USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_x64_gl_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 &&  DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_arm64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .arm64 && !DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_arm64_metal_release.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 &&  DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_x64_metal_debug.dylib" } }
+        else when !USE_GL && ODIN_ARCH == .amd64 && !DEBUG { foreign import sokol_gl_clib { "../dylib/sokol_dylib_macos_x64_metal_release.dylib" } }
+    } else {
+        when USE_GL {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_gl_clib { "sokol_gl_macos_arm64_gl_debug.a" } }
+                else       { foreign import sokol_gl_clib { "sokol_gl_macos_arm64_gl_release.a" } }
+            } else {
+                when DEBUG { foreign import sokol_gl_clib { "sokol_gl_macos_x64_gl_debug.a" } }
+                else       { foreign import sokol_gl_clib { "sokol_gl_macos_x64_gl_release.a" } }
+            }
+        } else {
+            when ODIN_ARCH == .arm64 {
+                when DEBUG { foreign import sokol_gl_clib { "sokol_gl_macos_arm64_metal_debug.a" } }
+                else       { foreign import sokol_gl_clib { "sokol_gl_macos_arm64_metal_release.a" } }
+            } else {
+                when DEBUG { foreign import sokol_gl_clib { "sokol_gl_macos_x64_metal_debug.a" } }
+                else       { foreign import sokol_gl_clib { "sokol_gl_macos_x64_metal_release.a" } }
+            }
+        }
+    }
+} else when ODIN_OS == .Linux {
+    when USE_DLL {
+        when DEBUG { foreign import sokol_gl_clib { "sokol_gl_linux_x64_gl_debug.so" } }
+        else       { foreign import sokol_gl_clib { "sokol_gl_linux_x64_gl_release.so" } }
+    } else {
+        when DEBUG { foreign import sokol_gl_clib { "sokol_gl_linux_x64_gl_debug.a" } }
+        else       { foreign import sokol_gl_clib { "sokol_gl_linux_x64_gl_release.a" } }
+    }
+} else when ODIN_ARCH == .wasm32 || ODIN_ARCH == .wasm64p32 {
+    // Feed sokol_gl_wasm_gl_debug.a or sokol_gl_wasm_gl_release.a into emscripten compiler.
+    foreign import sokol_gl_clib { "env.o" }
+} else {
+    #panic("This OS is currently not supported")
+}
+
+@(default_calling_convention="c", link_prefix="sgl_")
+foreign sokol_gl_clib {
+    // setup/shutdown/misc
+    setup :: proc(#by_ptr desc: Desc)  ---
+    shutdown :: proc()  ---
+    rad :: proc(deg: f32) -> f32 ---
+    deg :: proc(rad: f32) -> f32 ---
+    error :: proc() -> Error ---
+    context_error :: proc(ctx: Context) -> Error ---
+    // context functions
+    make_context :: proc(#by_ptr desc: Context_Desc) -> Context ---
+    destroy_context :: proc(ctx: Context)  ---
+    set_context :: proc(ctx: Context)  ---
+    get_context :: proc() -> Context ---
+    default_context :: proc() -> Context ---
+    // get information about recorded vertices and commands in current context
+    num_vertices :: proc() -> c.int ---
+    num_commands :: proc() -> c.int ---
+    // draw recorded commands (call inside a sokol-gfx render pass)
+    draw :: proc()  ---
+    context_draw :: proc(ctx: Context)  ---
+    draw_layer :: proc(#any_int layer_id: c.int)  ---
+    context_draw_layer :: proc(ctx: Context, #any_int layer_id: c.int)  ---
+    // create and destroy pipeline objects
+    make_pipeline :: proc(#by_ptr desc: sg.Pipeline_Desc) -> Pipeline ---
+    context_make_pipeline :: proc(ctx: Context, #by_ptr desc: sg.Pipeline_Desc) -> Pipeline ---
+    destroy_pipeline :: proc(pip: Pipeline)  ---
+    // render state functions
+    defaults :: proc()  ---
+    viewport :: proc(#any_int x: c.int, #any_int y: c.int, #any_int w: c.int, #any_int h: c.int, origin_top_left: bool)  ---
+    viewportf :: proc(x: f32, y: f32, w: f32, h: f32, origin_top_left: bool)  ---
+    scissor_rect :: proc(#any_int x: c.int, #any_int y: c.int, #any_int w: c.int, #any_int h: c.int, origin_top_left: bool)  ---
+    scissor_rectf :: proc(x: f32, y: f32, w: f32, h: f32, origin_top_left: bool)  ---
+    enable_texture :: proc()  ---
+    disable_texture :: proc()  ---
+    texture :: proc(img: sg.Image, smp: sg.Sampler)  ---
+    layer :: proc(#any_int layer_id: c.int)  ---
+    // pipeline stack functions
+    load_default_pipeline :: proc()  ---
+    load_pipeline :: proc(pip: Pipeline)  ---
+    push_pipeline :: proc()  ---
+    pop_pipeline :: proc()  ---
+    // matrix stack functions
+    matrix_mode_modelview :: proc()  ---
+    matrix_mode_projection :: proc()  ---
+    matrix_mode_texture :: proc()  ---
+    load_identity :: proc()  ---
+    load_matrix :: proc(m: ^f32)  ---
+    load_transpose_matrix :: proc(m: ^f32)  ---
+    mult_matrix :: proc(m: ^f32)  ---
+    mult_transpose_matrix :: proc(m: ^f32)  ---
+    rotate :: proc(angle_rad: f32, x: f32, y: f32, z: f32)  ---
+    scale :: proc(x: f32, y: f32, z: f32)  ---
+    translate :: proc(x: f32, y: f32, z: f32)  ---
+    frustum :: proc(l: f32, r: f32, b: f32, t: f32, n: f32, f: f32)  ---
+    ortho :: proc(l: f32, r: f32, b: f32, t: f32, n: f32, f: f32)  ---
+    perspective :: proc(fov_y: f32, aspect: f32, z_near: f32, z_far: f32)  ---
+    lookat :: proc(eye_x: f32, eye_y: f32, eye_z: f32, center_x: f32, center_y: f32, center_z: f32, up_x: f32, up_y: f32, up_z: f32)  ---
+    push_matrix :: proc()  ---
+    pop_matrix :: proc()  ---
+    // these functions only set the internal 'current texcoord / color / point size' (valid inside or outside begin/end)
+    t2f :: proc(u: f32, v: f32)  ---
+    c3f :: proc(r: f32, g: f32, b: f32)  ---
+    c4f :: proc(r: f32, g: f32, b: f32, a: f32)  ---
+    c3b :: proc(r: u8, g: u8, b: u8)  ---
+    c4b :: proc(r: u8, g: u8, b: u8, a: u8)  ---
+    c1i :: proc(rgba: u32)  ---
+    point_size :: proc(s: f32)  ---
+    // define primitives, each begin/end is one draw command
+    begin_points :: proc()  ---
+    begin_lines :: proc()  ---
+    begin_line_strip :: proc()  ---
+    begin_triangles :: proc()  ---
+    begin_triangle_strip :: proc()  ---
+    begin_quads :: proc()  ---
+    v2f :: proc(x: f32, y: f32)  ---
+    v3f :: proc(x: f32, y: f32, z: f32)  ---
+    v2f_t2f :: proc(x: f32, y: f32, u: f32, v: f32)  ---
+    v3f_t2f :: proc(x: f32, y: f32, z: f32, u: f32, v: f32)  ---
+    v2f_c3f :: proc(x: f32, y: f32, r: f32, g: f32, b: f32)  ---
+    v2f_c3b :: proc(x: f32, y: f32, r: u8, g: u8, b: u8)  ---
+    v2f_c4f :: proc(x: f32, y: f32, r: f32, g: f32, b: f32, a: f32)  ---
+    v2f_c4b :: proc(x: f32, y: f32, r: u8, g: u8, b: u8, a: u8)  ---
+    v2f_c1i :: proc(x: f32, y: f32, rgba: u32)  ---
+    v3f_c3f :: proc(x: f32, y: f32, z: f32, r: f32, g: f32, b: f32)  ---
+    v3f_c3b :: proc(x: f32, y: f32, z: f32, r: u8, g: u8, b: u8)  ---
+    v3f_c4f :: proc(x: f32, y: f32, z: f32, r: f32, g: f32, b: f32, a: f32)  ---
+    v3f_c4b :: proc(x: f32, y: f32, z: f32, r: u8, g: u8, b: u8, a: u8)  ---
+    v3f_c1i :: proc(x: f32, y: f32, z: f32, rgba: u32)  ---
+    v2f_t2f_c3f :: proc(x: f32, y: f32, u: f32, v: f32, r: f32, g: f32, b: f32)  ---
+    v2f_t2f_c3b :: proc(x: f32, y: f32, u: f32, v: f32, r: u8, g: u8, b: u8)  ---
+    v2f_t2f_c4f :: proc(x: f32, y: f32, u: f32, v: f32, r: f32, g: f32, b: f32, a: f32)  ---
+    v2f_t2f_c4b :: proc(x: f32, y: f32, u: f32, v: f32, r: u8, g: u8, b: u8, a: u8)  ---
+    v2f_t2f_c1i :: proc(x: f32, y: f32, u: f32, v: f32, rgba: u32)  ---
+    v3f_t2f_c3f :: proc(x: f32, y: f32, z: f32, u: f32, v: f32, r: f32, g: f32, b: f32)  ---
+    v3f_t2f_c3b :: proc(x: f32, y: f32, z: f32, u: f32, v: f32, r: u8, g: u8, b: u8)  ---
+    v3f_t2f_c4f :: proc(x: f32, y: f32, z: f32, u: f32, v: f32, r: f32, g: f32, b: f32, a: f32)  ---
+    v3f_t2f_c4b :: proc(x: f32, y: f32, z: f32, u: f32, v: f32, r: u8, g: u8, b: u8, a: u8)  ---
+    v3f_t2f_c1i :: proc(x: f32, y: f32, z: f32, u: f32, v: f32, rgba: u32)  ---
+    end :: proc()  ---
+}
+
+Log_Item :: enum i32 {
+    OK,
+    MALLOC_FAILED,
+    MAKE_PIPELINE_FAILED,
+    PIPELINE_POOL_EXHAUSTED,
+    ADD_COMMIT_LISTENER_FAILED,
+    CONTEXT_POOL_EXHAUSTED,
+    CANNOT_DESTROY_DEFAULT_CONTEXT,
+}
+
+/*
+    sgl_logger_t
+
+    Used in sgl_desc_t to provide a custom logging and error reporting
+    callback to sokol-gl.
+*/
+Logger :: struct {
+    func : proc "c" (a0: cstring, a1: u32, a2: u32, a3: cstring, a4: u32, a5: cstring, a6: rawptr),
+    user_data : rawptr,
+}
+
+// sokol_gl pipeline handle (created with sgl_make_pipeline())
+Pipeline :: struct {
+    id : u32,
+}
+
+// a context handle (created with sgl_make_context())
+Context :: struct {
+    id : u32,
+}
+
+/*
+    sgl_error_t
+
+    Errors are reset each frame after calling sgl_draw(),
+    get the last error code with sgl_error()
+*/
+Error :: struct {
+    any : bool,
+    vertices_full : bool,
+    uniforms_full : bool,
+    commands_full : bool,
+    stack_overflow : bool,
+    stack_underflow : bool,
+    no_context : bool,
+}
+
+/*
+    sgl_context_desc_t
+
+    Describes the initialization parameters of a rendering context.
+    Creating additional contexts is useful if you want to render
+    in separate sokol-gfx passes.
+*/
+Context_Desc :: struct {
+    max_vertices : c.int,
+    max_commands : c.int,
+    color_format : sg.Pixel_Format,
+    depth_format : sg.Pixel_Format,
+    sample_count : c.int,
+}
+
+/*
+    sgl_allocator_t
+
+    Used in sgl_desc_t to provide custom memory-alloc and -free functions
+    to sokol_gl.h. If memory management should be overridden, both the
+    alloc and free function must be provided (e.g. it's not valid to
+    override one function but not the other).
+*/
+Allocator :: struct {
+    alloc_fn : proc "c" (a0: c.size_t, a1: rawptr) -> rawptr,
+    free_fn : proc "c" (a0: rawptr, a1: rawptr),
+    user_data : rawptr,
+}
+
+Desc :: struct {
+    max_vertices : c.int,
+    max_commands : c.int,
+    context_pool_size : c.int,
+    pipeline_pool_size : c.int,
+    color_format : sg.Pixel_Format,
+    depth_format : sg.Pixel_Format,
+    sample_count : c.int,
+    face_winding : sg.Face_Winding,
+    allocator : Allocator,
+    logger : Logger,
+}
+