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[TEST] Refactored SRGBToLinear function

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This commit is contained in:
CamilleLaVey
2026-07-05 07:20:59 -04:00
parent b0ccfb2c2a
commit bfdc50ee76
1 changed files with 7 additions and 7 deletions
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src/video_core/host_shaders/astc_decoder.comp
+7 -7
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@@ -140,12 +140,13 @@ uvec4 ReplicateByteTo16(uvec4 value) {
// sRGB EOTF (decode: encoded value -> linear). Only used on the Vulkan path, where the
// destination image is a linear float format with no format-level sRGB tag of its own.
float SRGBToLinear(float c) {
return (c <= 0.04045) ? (c / 12.92) : pow((c + 0.055) / 1.055, 2.4);
}
// Vectorized (single vec3 overload, no per-component scalar ternary) to match the style
// already used elsewhere in this file (see the HDR Mt piecewise selection) rather than the
// float/vec3 overload pair this replaces.
vec3 SRGBToLinear(vec3 c) {
return vec3(SRGBToLinear(c.x), SRGBToLinear(c.y), SRGBToLinear(c.z));
const vec3 lo = c / 12.92;
const vec3 hi = pow(max((c + 0.055) / 1.055, vec3(0.0)), vec3(2.4));
return mix(hi, lo, lessThanEqual(c, vec3(0.04045)));
}
uint ReplicateBitTo7(uint value) {
@@ -1406,8 +1407,7 @@ void DecompressBlock(ivec3 coord) {
vec4((C0 * (uvec4(64) - weight_vec) + C1 * weight_vec + uvec4(32)) / 64);
p = Cf / 65535.0f;
#ifdef VULKAN
// if (is_srgb != 0u)
if (false) {
if (is_srgb != 0u) {
p.yzw = SRGBToLinear(p.yzw);
}
#endif