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Finished first draft for VEFontCache font provider hookup for sokol_gfx (untested)

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Edward R. Gonzalez
2024-06-09 21:39:49 -04:00
parent 93368a40ff
commit 82e7482c85
11 changed files with 562 additions and 31 deletions
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348
code/sectr/font/provider_VEFontCache.odin
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@ -1,8 +1,9 @@
package sectr
import "core:os"
import ve "codebase:font/VEFontCache"
import sokol_gfx "thirdparty:sokol/gfx"
import ve "codebase:font/VEFontCache"
import sokol_gfx "thirdparty:sokol/gfx"
import sokol_glue "thirdparty:sokol/glue"
Font_Provider_Use_Freetype :: false
@ -30,11 +31,32 @@ FontProviderData :: struct
ve_font_cache : ve.Context,
font_cache : HMapChained(FontDef),
gfx_bindings : sokol_gfx.Bindings,
gfx_pipeline : sokol_gfx.Pipeline,
gfx_v_buffer : sokol_gfx.Buffer,
gfx_uv_buffer : sokol_gfx.Buffer,
gfx_sampler : sokol_gfx.Sampler,
gfx_sampler : sokol_gfx.Sampler,
draw_list_vbuf : sokol_gfx.Buffer,
draw_list_ibuf : sokol_gfx.Buffer,
glyph_shader : sokol_gfx.Shader,
atlas_shader : sokol_gfx.Shader,
screen_shader : sokol_gfx.Shader,
// 2k x 512, R8
glyph_rt_color : sokol_gfx.Image,
// glyph_rt_resolve : sokol_gfx.Image,
// glyph_rt_depth : sokol_gfx.Image,
// 4k x 2k, R8
atlas_rt_color : sokol_gfx.Image,
// atlas_rt_resolve : sokol_gfx.Image,
// atlas_rt_depth : sokol_gfx.Image,
glyph_pipeline : sokol_gfx.Pipeline,
atlas_pipeline : sokol_gfx.Pipeline,
screen_pipeline : sokol_gfx.Pipeline,
glyph_pass : sokol_gfx.Pass,
atlas_pass : sokol_gfx.Pass,
screen_pass : sokol_gfx.Pass,
}
font_provider_startup :: proc()
@ -51,7 +73,317 @@ font_provider_startup :: proc()
ve.init( & provider_data.ve_font_cache, .STB_TrueType, allocator = persistent_slab_allocator() )
log("VEFontCached initialized")
ve.configure_snap( & provider_data.ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y * 2.0) )
// TODO(Ed): Setup sokol hookup for VEFontCache
{
AttachmentDesc :: sokol_gfx.Attachment_Desc
BlendFactor :: sokol_gfx.Blend_Factor
BlendOp :: sokol_gfx.Blend_Op
BlendState :: sokol_gfx.Blend_State
BorderColor :: sokol_gfx.Border_Color
BufferDesciption :: sokol_gfx.Buffer_Desc
BufferUsage :: sokol_gfx.Usage
BufferType :: sokol_gfx.Buffer_Type
ColorTargetState :: sokol_gfx.Color_Target_State
Filter :: sokol_gfx.Filter
ImageDesc :: sokol_gfx.Image_Desc
PassAction :: sokol_gfx.Pass_Action
Range :: sokol_gfx.Range
SamplerDescription :: sokol_gfx.Sampler_Desc
Wrap :: sokol_gfx.Wrap
VertexAttributeState :: sokol_gfx.Vertex_Attr_State
VertexBufferLayoutState :: sokol_gfx.Vertex_Buffer_Layout_State
VertexIndexType :: sokol_gfx.Index_Type
VertexFormat :: sokol_gfx.Vertex_Format
VertexLayoutState :: sokol_gfx.Vertex_Layout_State
VertexStep :: sokol_gfx.Vertex_Step
using provider_data
backend := sokol_gfx.query_backend()
app_env := sokol_glue.environment()
glyph_shader = sokol_gfx.make_shader(ve_render_glyph_shader_desc(backend) )
atlas_shader = sokol_gfx.make_shader(ve_blit_atlas_shader_desc(backend) )
screen_shader = sokol_gfx.make_shader(ve_draw_text_shader_desc(backend) )
draw_list_vbuf = sokol_gfx.make_buffer( BufferDesciption {
size = size_of([4]f32) * Kilo * 128,
usage = BufferUsage.STREAM,
type = BufferType.VERTEXBUFFER,
})
draw_list_ibuf = sokol_gfx.make_buffer( BufferDesciption {
size = size_of(u32) * Kilo * 32,
usage = BufferUsage.STREAM,
type = BufferType.INDEXBUFFER,
})
gfx_sampler = sokol_gfx.make_sampler( SamplerDescription {
min_filter = Filter.NEAREST,
mag_filter = Filter.NEAREST,
mipmap_filter = Filter.NONE,
wrap_u = Wrap.CLAMP_TO_EDGE,
wrap_v = Wrap.CLAMP_TO_EDGE,
border_color = BorderColor.OPAQUE_BLACK,
})
// glyph_pipeline
{
vs_layout : VertexLayoutState
{
using vs_layout
attrs[ATTR_ve_render_glyph_vs_v_position] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = 0,
buffer_index = 0,
}
attrs[ATTR_ve_render_glyph_vs_v_texture] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = size_of(Vec2),
buffer_index = 0,
}
buffers[0] = VertexBufferLayoutState {
stride = size_of(Vec2) * 2,
step_func = VertexStep.PER_VERTEX
}
}
color_target := ColorTargetState {
pixel_format = .R8,
// write_mask =
blend = BlendState {
enabled = true,
src_factor_rgb = .ONE_MINUS_DST_COLOR,
dst_factor_rgb = .ONE_MINUS_SRC_COLOR,
op_rgb = BlendOp.ADD,
src_factor_alpha = BlendFactor.ONE,
dst_factor_alpha = BlendFactor.ZERO,
op_alpha = BlendOp.ADD,
},
}
glyph_pipeline = sokol_gfx.make_pipeline({
shader = glyph_shader,
layout = vs_layout,
index_type = VertexIndexType.UINT32,
colors = {
0 = color_target,
},
color_count = 1,
// sample_count = 1,
// label =
})
}
// glyph_pass
{
glyph_rt_color = sokol_gfx.make_image( ImageDesc {
type = ._2D,
render_target = true,
width = i32(ve_font_cache.atlas.buffer_width),
height = i32(ve_font_cache.atlas.buffer_height),
num_slices = 1,
num_mipmaps = 1,
usage = .STREAM,
pixel_format = .R8,
sample_count = app_env.defaults.sample_count,
// TODO(Ed): Setup labels for debug tracing/logging
// label =
})
color_attach := AttachmentDesc {
image = glyph_rt_color,
// mip_level = 1,
}
glyph_attachments := sokol_gfx.make_attachments({
colors = {
0 = color_attach,
},
})
glyph_action := PassAction {
colors = {
0 = {
load_action = .DONTCARE,
store_action = .STORE,
clear_value = {0,0,0,1},
}
}
}
glyph_pass = sokol_gfx.Pass {
action = glyph_action,
attachments = glyph_attachments,
// label =
}
}
// atlas_pipeline
{
vs_layout : VertexLayoutState
{
using vs_layout
attrs[ATTR_ve_blit_atlas_vs_v_position] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = 0,
buffer_index = 0,
}
attrs[ATTR_ve_blit_atlas_vs_v_texture] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = size_of(Vec2),
buffer_index = 0,
}
buffers[0] = VertexBufferLayoutState {
stride = size_of(Vec2) * 2,
step_func = VertexStep.PER_VERTEX
}
}
color_target := ColorTargetState {
pixel_format = .R8,
// write_mask =
blend = BlendState {
enabled = true,
src_factor_rgb = .SRC_ALPHA,
dst_factor_rgb = .ONE_MINUS_SRC_ALPHA,
op_rgb = BlendOp.ADD,
src_factor_alpha = BlendFactor.ONE,
dst_factor_alpha = BlendFactor.ZERO,
op_alpha = BlendOp.ADD,
},
}
atlas_pipeline = sokol_gfx.make_pipeline({
shader = atlas_shader,
layout = vs_layout,
index_type = VertexIndexType.UINT32,
colors = {
0 = color_target,
},
color_count = 1,
sample_count = 1,
})
}
// atlas_pass
{
atlas_rt_color = sokol_gfx.make_image( ImageDesc {
type = ._2D,
render_target = true,
width = i32(ve_font_cache.atlas.buffer_width),
height = i32(ve_font_cache.atlas.buffer_height),
num_slices = 1,
num_mipmaps = 1,
usage = .STREAM,
pixel_format = .R8,
sample_count = app_env.defaults.sample_count,
// TODO(Ed): Setup labels for debug tracing/logging
// label =
})
color_attach := AttachmentDesc {
image = atlas_rt_color,
// mip_level = 1,
}
atlas_attachments := sokol_gfx.make_attachments({
colors = {
0 = color_attach,
},
})
atlas_action := PassAction {
colors = {
0 = {
load_action = .LOAD,
store_action = .STORE,
clear_value = {0,0,0,1},
}
}
}
atlas_pass = sokol_gfx.Pass {
action = atlas_action,
attachments = atlas_attachments,
// label =
}
}
// screen pipeline
{
vs_layout : VertexLayoutState
{
using vs_layout
attrs[ATTR_ve_draw_text_vs_v_position] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = 0,
buffer_index = 0,
}
attrs[ATTR_ve_draw_text_vs_v_texture] = VertexAttributeState {
format = VertexFormat.FLOAT2,
offset = size_of(Vec2),
buffer_index = 0,
}
buffers[0] = VertexBufferLayoutState {
stride = size_of(Vec2) * 2,
step_func = VertexStep.PER_VERTEX
}
}
color_target := ColorTargetState {
// pixel_format = .R8,
// write_mask =
blend = BlendState {
enabled = true,
src_factor_rgb = .SRC_ALPHA,
dst_factor_rgb = .ONE_MINUS_SRC_ALPHA,
op_rgb = BlendOp.ADD,
src_factor_alpha = BlendFactor.ONE,
dst_factor_alpha = BlendFactor.ZERO,
op_alpha = BlendOp.ADD,
},
}
screen_pipeline = sokol_gfx.make_pipeline({
shader = screen_shader,
layout = vs_layout,
index_type = VertexIndexType.UINT32,
colors = {
0 = color_target,
},
color_count = 1,
sample_count = 1,
})
}
// screen_pass
{
screen_action := PassAction {
colors = {
0 = {
load_action = .CLEAR,
store_action = .STORE,
clear_value = {0,0,0,0},
}
}
}
screen_pass = sokol_gfx.Pass {
action = screen_action,
// label =
}
}
}
}
font_provider_reload :: proc()
{
state := get_state()
provider_data := & state.font_provider_data
ve.configure_snap( & provider_data.ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y) )
}
font_provider_shutdown :: proc()
@ -92,7 +424,7 @@ font_load :: proc(path_file : string,
verify( set_error == AllocatorError.None, "Failed to add new font entry to cache" )
// TODO(Ed): Load even sizes from 8px to upper bound.
def.ve_id = ve.load_font( & provider_data.ve_font_cache, desired_id, font_data, default_size )
def.ve_id = ve.load_font( & provider_data.ve_font_cache, desired_id, font_data, 36.0 )
fid := FontID { key, desired_id }
return fid