tenant.openagents/omega

1#include "alpha_correction.hlsl"
2
3struct RasterVertexOutput {
4    float4 position : SV_Position;
5    float2 texcoord : TEXCOORD0;
6};
7
8RasterVertexOutput emoji_rasterization_vertex(uint vertexID : SV_VERTEXID)
9{
10    RasterVertexOutput output;
11    output.texcoord = float2((vertexID << 1) & 2, vertexID & 2);
12    output.position = float4(output.texcoord * 2.0f - 1.0f, 0.0f, 1.0f);
13    output.position.y = -output.position.y;
14
15    return output;
16}
17
18struct PixelInput {
19    float4 position: SV_Position;
20    float2 texcoord : TEXCOORD0;
21};
22
23struct Bounds {
24    int2 origin;
25    int2 size;
26};
27
28Texture2D<float> t_layer : register(t0);
29SamplerState s_layer : register(s0);
30
31cbuffer GlyphLayerTextureParams : register(b0) {
32    Bounds bounds;
33    float4 run_color;
34    float4 gamma_ratios;
35    float grayscale_enhanced_contrast;
36    float3 _pad;
37};
38
39float4 emoji_rasterization_fragment(PixelInput input): SV_Target {
40    float sample = t_layer.Sample(s_layer, input.texcoord.xy).r;
41    float alpha_corrected = apply_contrast_and_gamma_correction(sample, run_color.rgb, grayscale_enhanced_contrast, gamma_ratios);
42    float alpha = alpha_corrected * run_color.a;
43    return float4(run_color.rgb * alpha, alpha);
44}
45