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Internally convert text colors to linear

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grovesNL 2024-01-15 12:49:19 -03:30 • committed by Josh Groves
commit ce394f9d53
1 changed files with 14 additions and 5 deletions
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19
src/shader.wgsl
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@ -32,6 +32,15 @@ var mask_atlas_texture: texture_2d<f32>;
@group(0) @binding(3) @group(0) @binding(3)
var atlas_sampler: sampler; var atlas_sampler: sampler;
fn srgb_to_linear(srgb: u32) -> f32 {
let c = f32(srgb) / 255.0;
if c <= 0.04045 {
return c / 12.92;
} else {
return pow((c + 0.055) / 1.055, 2.4);
}
}
@vertex @vertex
fn vs_main(in_vert: VertexInput) -> VertexOutput { fn vs_main(in_vert: VertexInput) -> VertexOutput {
var pos = in_vert.pos; var pos = in_vert.pos;
@ -70,11 +79,11 @@ fn vs_main(in_vert: VertexInput) -> VertexOutput {
vert_output.position.y *= -1.0; vert_output.position.y *= -1.0;
vert_output.color = vec4<f32>( vert_output.color = vec4<f32>(
f32((color & 0x00ff0000u) >> 16u), srgb_to_linear((color & 0x00ff0000u) >> 16u),
f32((color & 0x0000ff00u) >> 8u), srgb_to_linear((color & 0x0000ff00u) >> 8u),
f32(color & 0x000000ffu), srgb_to_linear(color & 0x000000ffu),
f32((color & 0xff000000u) >> 24u), f32((color & 0xff000000u) >> 24u) / 255.0,
) / 255.0; );
var dim: vec2<u32> = vec2(0u); var dim: vec2<u32> = vec2(0u);
switch in_vert.content_type { switch in_vert.content_type {