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Misc changes to engine and shaders

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This commit is contained in:
Edward R. Gonzalez 2025-01-12 14:01:11 -05:00
parent bc47b37a46
commit 9da0e73d3b
5 changed files with 206 additions and 272 deletions
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4
code/sectr/engine/client_api.odin
View File

@ -155,8 +155,8 @@ startup :: proc( prof : ^SpallProfiler, persistent_mem, frame_mem, transient_mem
text_snap_glyph_shape_position = false
text_snap_glyph_render_height = false
text_size_screen_scalar = 2
text_size_canvas_scalar = 2
text_size_screen_scalar = 1.4
text_size_canvas_scalar = 1.4
text_alpha_sharpen = 0.1
}

471
code/sectr/engine/render.odin
View File

@ -289,176 +289,6 @@ render_screen_ui :: proc( screen_extent : Extents2, ui : ^UI_State, ve_ctx : ^ve
}
}
render_text_layer :: proc( screen_extent : Vec2, ve_ctx : ^ve.Context, render : VE_RenderData )
{
profile("VEFontCache: render text layer")
using render
Bindings :: gfx.Bindings
Range :: gfx.Range
ShaderStage :: gfx.Shader_Stage
vbuf_layer_slice, ibuf_layer_slice, calls_layer_slice := ve.get_draw_list_layer( ve_ctx )
vbuf_ve_range := Range{ raw_data(vbuf_layer_slice), cast(uint) len(vbuf_layer_slice) * size_of(ve.Vertex) }
ibuf_ve_range := Range{ raw_data(ibuf_layer_slice), cast(uint) len(ibuf_layer_slice) * size_of(u32) }
gfx.append_buffer( draw_list_vbuf, vbuf_ve_range )
gfx.append_buffer( draw_list_ibuf, ibuf_ve_range )
ve.flush_draw_list_layer( ve_ctx )
screen_width := u32(screen_extent.x * 2)
screen_height := u32(screen_extent.y * 2)
atlas := & ve_ctx.atlas
glyph_buffer := & ve_ctx.glyph_buffer
atlas_size : Vec2 = vec2(atlas.size)
glyph_buf_size : Vec2 = vec2(glyph_buffer.size)
for & draw_call in calls_layer_slice
{
watch := draw_call
// profile("VEFontCache: draw call")
num_indices := draw_call.end_index - draw_call.start_index
switch draw_call.pass
{
// 1. Do the glyph rendering pass
// Glyphs are first rendered to an intermediate 2k x 512px R8 texture
case .Glyph:
// profile("VEFontCache: draw call: glyph")
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
width := ve_ctx.glyph_buffer.size.x
height := ve_ctx.glyph_buffer.size.y
pass := glyph_pass
if draw_call.clear_before_draw {
pass.action.colors[0].load_action = .CLEAR
pass.action.colors[0].clear_value.a = 1.0
}
gfx.begin_pass( pass )
gfx.apply_viewport ( 0,0, width, height, origin_top_left = true )
gfx.apply_scissor_rect( 0,0, width, height, origin_top_left = true )
gfx.apply_pipeline( glyph_pipeline )
bindings := Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = draw_list_ibuf,
index_buffer_offset = 0,
}
gfx.apply_bindings( bindings )
// 2. Do the atlas rendering pass
// A simple 16-tap box downsample shader is then used to blit from this intermediate texture to the final atlas location
case .Atlas:
// profile("VEFontCache: draw call: atlas")
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
width := ve_ctx.atlas.size.x
height := ve_ctx.atlas.size.y
pass := atlas_pass
if draw_call.clear_before_draw {
pass.action.colors[0].load_action = .CLEAR
pass.action.colors[0].clear_value.a = 1.0
}
gfx.begin_pass( pass )
gfx.apply_viewport ( 0, 0, width, height, origin_top_left = true )
gfx.apply_scissor_rect( 0, 0, width, height, origin_top_left = true )
gfx.apply_pipeline( atlas_pipeline )
fs_uniform := Ve_Blit_Atlas_Fs_Params {
glyph_buffer_size = glyph_buf_size,
over_sample = 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_bindings(Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = draw_list_ibuf,
index_buffer_offset = 0,
images = { IMG_ve_blit_atlas_src_texture = glyph_rt_color, },
samplers = { SMP_ve_blit_atlas_src_sampler = glyph_rt_sampler, },
})
// 3. Use the atlas to then render the text.
case .None, .Target, .Target_Uncached:
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
// profile("VEFontCache: draw call: target")
pass := screen_pass
pass.swapchain = sokol_glue.swapchain()
gfx.begin_pass( pass )
gfx.apply_viewport ( 0, 0, screen_width, screen_height, origin_top_left = true )
gfx.apply_scissor_rect( 0, 0, screen_width, screen_height, origin_top_left = true )
gfx.apply_pipeline( screen_pipeline )
src_rt := atlas_rt_color
src_sampler := atlas_rt_sampler
fs_target_uniform := Ve_Draw_Text_Fs_Params {
// glyph_buffer_size = glyph_buf_size,
over_sample = glyph_buffer.over_sample.x,
colour = draw_call.colour,
}
if draw_call.pass == .Target_Uncached {
// fs_target_uniform.over_sample = 1.0
src_rt = glyph_rt_color
src_sampler = 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_bindings(Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = 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, },
})
}
if num_indices != 0 {
gfx.draw( draw_call.start_index, num_indices, 1 )
}
gfx.end_pass()
}
}
when false {
render_ui_via_box_tree :: proc( ui : ^UI_State, screen_extent : Vec2, ve_ctx : ^ve.Context, ve_render : VE_RenderData, cam : ^Camera = nil )
{
@ -673,60 +503,174 @@ render_ui_via_box_list :: proc( box_list : []UI_RenderBoxInfo, text_list : []UI_
}
}
when false {
render_gp_layer :: proc ( )
render_text_layer :: proc( screen_extent : Vec2, ve_ctx : ^ve.Context, render : VE_RenderData )
{
profile("GP_Render")
profile("VEFontCache: render text layer")
using render
shape_enqueued : b32 = false
box_layer_done : b32 = false
for box_id < cast(i32) len(box_list) && ! box_layer_done
Bindings :: gfx.Bindings
Range :: gfx.Range
ShaderStage :: gfx.Shader_Stage
vbuf_layer_slice, ibuf_layer_slice, calls_layer_slice := ve.get_draw_list_layer( ve_ctx )
vbuf_ve_range := Range{ raw_data(vbuf_layer_slice), cast(uint) len(vbuf_layer_slice) * size_of(ve.Vertex) }
ibuf_ve_range := Range{ raw_data(ibuf_layer_slice), cast(uint) len(ibuf_layer_slice) * size_of(u32) }
gfx.append_buffer( draw_list_vbuf, vbuf_ve_range )
gfx.append_buffer( draw_list_ibuf, ibuf_ve_range )
ve.flush_draw_list_layer( ve_ctx )
screen_width := u32(screen_extent.x * 2)
screen_height := u32(screen_extent.y * 2)
atlas := & ve_ctx.atlas
glyph_buffer := & ve_ctx.glyph_buffer
atlas_size : Vec2 = vec2(atlas.size)
glyph_buf_size : Vec2 = vec2(glyph_buffer.size)
for & draw_call in calls_layer_slice
{
profile("GP_Render")
box_layer_done = b32(box_id > 0) && box_list[ box_id - 1 ].layer_signal
watch := draw_call
// profile("VEFontCache: draw call")
entry := box_list[box_id]
num_indices := draw_call.end_index - draw_call.start_index
corner_radii_total : f32 = 0
for radius in entry.corner_radii do corner_radii_total += radius
if entry.bg_color.a != 0
switch draw_call.pass
{
render_set_color( entry.bg_color )
if corner_radii_total > 0 do draw_rect_rounded( entry.bounds, entry.corner_radii, 16 )
else do draw_rect( entry.bounds)
shape_enqueued = true
// 1. Do the glyph rendering pass
// Glyphs are first rendered to an intermediate 2k x 512px R8 texture
case .Glyph:
// profile("VEFontCache: draw call: glyph")
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
width := ve_ctx.glyph_buffer.size.x
height := ve_ctx.glyph_buffer.size.y
pass := glyph_pass
if draw_call.clear_before_draw {
pass.action.colors[0].load_action = .CLEAR
pass.action.colors[0].clear_value.a = 1.0
}
gfx.begin_pass( pass )
gfx.apply_viewport ( 0,0, width, height, origin_top_left = true )
gfx.apply_scissor_rect( 0,0, width, height, origin_top_left = true )
gfx.apply_pipeline( glyph_pipeline )
bindings := Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = draw_list_ibuf,
index_buffer_offset = 0,
}
gfx.apply_bindings( bindings )
// 2. Do the atlas rendering pass
// A simple 16-tap box downsample shader is then used to blit from this intermediate texture to the final atlas location
case .Atlas:
// profile("VEFontCache: draw call: atlas")
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
width := ve_ctx.atlas.size.x
height := ve_ctx.atlas.size.y
pass := atlas_pass
if draw_call.clear_before_draw {
pass.action.colors[0].load_action = .CLEAR
pass.action.colors[0].clear_value.a = 1.0
}
gfx.begin_pass( pass )
gfx.apply_viewport ( 0, 0, width, height, origin_top_left = true )
gfx.apply_scissor_rect( 0, 0, width, height, origin_top_left = true )
gfx.apply_pipeline( atlas_pipeline )
fs_uniform := Ve_Blit_Atlas_Fs_Params {
glyph_buffer_size = glyph_buf_size,
over_sample = 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_bindings(Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = draw_list_ibuf,
index_buffer_offset = 0,
images = { IMG_ve_blit_atlas_src_texture = glyph_rt_color, },
samplers = { SMP_ve_blit_atlas_src_sampler = glyph_rt_sampler, },
})
// 3. Use the atlas to then render the text.
case .None, .Target, .Target_Uncached:
if num_indices == 0 && ! draw_call.clear_before_draw {
continue
}
// profile("VEFontCache: draw call: target")
pass := screen_pass
pass.swapchain = sokol_glue.swapchain()
gfx.begin_pass( pass )
gfx.apply_viewport ( 0, 0, screen_width, screen_height, origin_top_left = true )
gfx.apply_scissor_rect( 0, 0, screen_width, screen_height, origin_top_left = true )
gfx.apply_pipeline( screen_pipeline )
src_rt := atlas_rt_color
src_sampler := atlas_rt_sampler
fs_target_uniform := Ve_Draw_Text_Fs_Params {
// glyph_buffer_size = glyph_buf_size,
over_sample = glyph_buffer.over_sample.x,
colour = draw_call.colour,
}
if draw_call.pass == .Target_Uncached {
// fs_target_uniform.over_sample = 1.0
src_rt = glyph_rt_color
src_sampler = 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_bindings(Bindings {
vertex_buffers = {
0 = draw_list_vbuf,
},
vertex_buffer_offsets = {
0 = 0,
},
index_buffer = 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, },
})
}
if entry.border_color.a != 0 && entry.border_width > 0
{
render_set_color( entry.border_color )
if corner_radii_total > 0 do draw_rect_rounded_border( entry.bounds, entry.corner_radii, entry.border_width, 16 )
else do draw_rect_border( entry.bounds, entry.border_width )
shape_enqueued = true
if num_indices != 0 {
gfx.draw( draw_call.start_index, num_indices, 1 )
}
if debug.draw_ui_box_bounds_points
{
render_set_color(Color_Red)
draw_filled_circle(entry.bounds.min.x, entry.bounds.min.y, circle_radius, 24)
render_set_color(Color_Blue)
draw_filled_circle(entry.bounds.max.x, entry.bounds.max.y, circle_radius, 24)
shape_enqueued = true
}
box_id += 1
gfx.end_pass()
}
box_id += 1
if shape_enqueued {
profile("render ui box_layer")
render_flush_gp()
}
}
}
#region("Helpers")
@ -921,7 +865,6 @@ draw_text_string_pos_norm :: #force_inline proc( text : string, id : FontID, fon
draw_scale := screen_size_norm * scale
ve_ctx := & get_state().font_provider_ctx.ve_ctx
ve.set_colour(ve_ctx, color_norm )
ve.draw_text_normalized_space(ve_ctx,
ve_id,
f32(resolved_size),
@ -935,33 +878,17 @@ draw_text_string_pos_norm :: #force_inline proc( text : string, id : FontID, fon
return
}
// Draw text using a string and extent-based screen coordinates
draw_text_string_pos_extent :: #force_inline proc( text : string, id : FontID, font_size : f32, pos : Vec2, color := Color_White )
{
profile(#procedure)
screen_extent := get_state().app_window.extent // TODO(Ed): Pass this in instead..
screen_size := screen_extent * 2
render_pos := screen_to_render_pos(pos)
normalized_pos := render_pos * (1.0 / screen_size)
draw_text_string_pos_norm( text, id, font_size, normalized_pos, color )
}
// Draw text using a string and normalized render coordinates
draw_text_shape_pos_norm :: #force_inline proc( shape : ShapedText, id : FontID, font_size : f32, pos : Vec2, color := Color_White, scale : f32 = 1.0 )
{
state := get_state(); using state
width := app_window.extent.x * 2
height := app_window.extent.y * 2
ve_id, resolved_size := font_provider_resolve_draw_id( id, font_size )
color_norm := normalize_rgba8(color)
screen_size_norm := Vec2 { 1 / width, 1 / height }
screen_size_norm := 1 / get_screen_extent() * 0.5
// ve.set_px_scalar( & font_provider_ctx.ve_ctx, config.font_size_screen_scalar )
ve.set_colour( & font_provider_ctx.ve_ctx, color_norm )
ve.draw_text_shape_normalized_space( & font_provider_ctx.ve_ctx, ve_id, f32(resolved_size), color_norm, {}, pos, screen_size_norm * scale, 1.0, shape )
// ve.set_colour( & font_provider_ctx.ve_ctx, color_norm )
ve.draw_text_shape_normalized_space( & get_state().font_provider_ctx.ve_ctx, ve_id, f32(resolved_size), color_norm, {}, pos, screen_size_norm * scale, 1.0, shape )
return
}
@ -976,42 +903,16 @@ draw_text_shape_pos_extent :: #force_inline proc( shape : ShapedText, id : FontI
draw_text_shape_pos_norm( shape, id, font_size, normalized_pos, color )
}
draw_text_string_pos_extent_zoomed :: #force_inline proc( text : string, id : FontID, size : f32, pos, cam_offset, screen_size, screen_size_norm : Vec2, zoom : f32, color := Color_White )
// Draw text using a string and extent-based screen coordinates
draw_text_string_pos_extent :: #force_inline proc( text : string, id : FontID, font_size : f32, pos : Vec2, color := Color_White )
{
profile(#procedure)
// state := get_state(); using state // TODO(Ed): Remove usage of direct access to entire mutable state.
config := app_config()
screen_extent := get_state().app_window.extent // TODO(Ed): Pass this in instead..
screen_size := screen_extent * 2
render_pos := screen_to_render_pos(pos)
normalized_pos := render_pos * (1.0 / screen_size)
zoom_adjust_size := size * zoom
pos_offset := (pos + cam_offset)
render_pos := ws_view_to_render_pos(pos)
normalized_pos := render_pos * screen_size_norm
ve_id, resolved_size := font_provider_resolve_draw_id( id, zoom_adjust_size )
f32_resolved_size := f32(resolved_size)
text_scale : Vec2 = screen_size_norm
// if config.cam_zoom_mode == .Smooth
{
diff_scalar := 1 + (zoom_adjust_size - f32_resolved_size) / f32_resolved_size
text_scale = diff_scalar * screen_size_norm
text_scale.x = clamp( text_scale.x, 0, screen_size.x )
text_scale.y = clamp( text_scale.y, 0, screen_size.y )
}
color_norm := normalize_rgba8(color)
ve.set_colour( & get_state().font_provider_ctx.ve_ctx, color_norm )
ve.draw_text_normalized_space( & get_state().font_provider_ctx.ve_ctx,
ve_id,
f32(resolved_size),
color_norm,
screen_size,
normalized_pos,
text_scale,
1.0,
text
)
draw_text_string_pos_norm( text, id, font_size, normalized_pos, color )
}
draw_text_shape_pos_extent_zoomed :: #force_inline proc( shape : ShapedText, id : FontID, size : f32, pos, cam_offset, screen_size, screen_size_norm : Vec2, zoom : f32, color := Color_White )
@ -1046,7 +947,6 @@ draw_text_shape_pos_extent_zoomed :: #force_inline proc( shape : ShapedText, id
color_norm := normalize_rgba8(color)
// ve.set_px_scalar( & get_state().font_provider_ctx.ve_ctx, config.font_size_canvas_scalar )
ve.set_colour( & font_provider_ctx.ve_ctx, color_norm )
ve.draw_text_shape_normalized_space( & font_provider_ctx.ve_ctx,
ve_id,
f32_resolved_size,
@ -1059,6 +959,43 @@ draw_text_shape_pos_extent_zoomed :: #force_inline proc( shape : ShapedText, id
)
}
draw_text_string_pos_extent_zoomed :: #force_inline proc( text : string, id : FontID, size : f32, pos, cam_offset, screen_size, screen_size_norm : Vec2, zoom : f32, color := Color_White )
{
profile(#procedure)
// state := get_state(); using state // TODO(Ed): Remove usage of direct access to entire mutable state.
config := app_config()
zoom_adjust_size := size * zoom
pos_offset := (pos + cam_offset)
render_pos := ws_view_to_render_pos(pos)
normalized_pos := render_pos * screen_size_norm
ve_id, resolved_size := font_provider_resolve_draw_id( id, zoom_adjust_size )
f32_resolved_size := f32(resolved_size)
text_scale : Vec2 = screen_size_norm
// if config.cam_zoom_mode == .Smooth
{
diff_scalar := 1 + (zoom_adjust_size - f32_resolved_size) / f32_resolved_size
text_scale = diff_scalar * screen_size_norm
text_scale.x = clamp( text_scale.x, 0, screen_size.x )
text_scale.y = clamp( text_scale.y, 0, screen_size.y )
}
color_norm := normalize_rgba8(color)
ve.draw_text_normalized_space( & get_state().font_provider_ctx.ve_ctx,
ve_id,
f32(resolved_size),
color_norm,
screen_size,
normalized_pos,
text_scale,
1.0,
text
)
}
// TODO(Ed): Eventually the workspace will need a viewport for drawing text
render_flush_gp :: #force_inline proc()

1
code/sectr/shaders/ve_blit_atlas.shdc.glsl
View File

@ -35,7 +35,6 @@ float down_sample_to_texture( vec2 uv, vec2 texture_size )
void main()
{
// const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f );
const vec2 texture_size = 1.0f / glyph_buffer_size;
if ( region == 0 || region == 1 || region == 2 || region == 4 )
{

1
code/sectr/shaders/ve_draw_text.shdc.glsl
View File

@ -32,7 +32,6 @@ void main()
{
float alpha = texture(sampler2D( ve_draw_text_src_texture, ve_draw_text_src_sampler ), uv ).x;
// const vec2 texture_size = 1.0f / vec2( 2048.0f, 512.0f );
const vec2 texture_size = glyph_buffer_size;
const float down_sample = 1.0f / over_sample;

1
code/sectr/shaders/ve_source_shared.shdc.glsl
View File

@ -1,6 +1,5 @@
in vec2 v_position;
in vec2 v_texture;
// in vec4 v_elem;
out vec2 uv;
void main()