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[GPU] Fix exp_bias for k_2_10_10_10_FLOAT

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Only skip exp_bias on alpha for k_2_10_10_10_FLOAT if dest format has
limited alpha range. Fixes GoW2
This commit is contained in:
Herman S.
2026-01-17 20:15:15 +09:00
parent 521d73f2e2
commit 73bcaa6237
1 changed files with 18 additions and 10 deletions
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src/xenia/gpu/shaders/resolve.xesli
+18 -10
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@@ -629,11 +629,15 @@ uint XeResolveEdramPixelStrideInts(XeResolveInfo resolve_info) {
}
}
// For k_2_10_10_10_FLOAT, only apply exp_bias to RGB (7e3 float), not
// alpha (2-bit fixed-point [0, 1]).
dont_flatten_xe if (resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT ||
resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT_AS_16_16_16_16) {
// alpha (2-bit fixed-point [0, 1]) - unless the destination format can
// store alpha > 1.0 (float formats), in which case apply to all channels
// as the game expects the expanded range.
dont_flatten_xe if ((resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT ||
resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT_AS_16_16_16_16) &&
resolve_info.dest_format != kXenosFormat_16_16_16_16_FLOAT &&
resolve_info.dest_format != kXenosFormat_32_32_32_32_FLOAT) {
pixel_0.xyz *= exp_bias;
pixel_1.xyz *= exp_bias;
} else {
@@ -708,11 +712,15 @@ uint XeResolveEdramPixelStrideInts(XeResolveInfo resolve_info) {
}
}
// For k_2_10_10_10_FLOAT, only apply exp_bias to RGB (7e3 float), not
// alpha (2-bit fixed-point [0, 1]).
dont_flatten_xe if (resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT ||
resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT_AS_16_16_16_16) {
// alpha (2-bit fixed-point [0, 1]) - unless the destination format can
// store alpha > 1.0 (float formats), in which case apply to all channels
// as the game expects the expanded range.
dont_flatten_xe if ((resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT ||
resolve_info.edram_format ==
kXenosColorRenderTargetFormat_2_10_10_10_FLOAT_AS_16_16_16_16) &&
resolve_info.dest_format != kXenosFormat_16_16_16_16_FLOAT &&
resolve_info.dest_format != kXenosFormat_32_32_32_32_FLOAT) {
pixel_0.xyz *= exp_bias;
pixel_1.xyz *= exp_bias;
pixel_2.xyz *= exp_bias;