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[GPU] Norm16 > float16 texture load shaders

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Triang3l
2022-04-09 23:34:50 +03:00
parent 744767f549
commit 1f324bebcd
40 changed files with 22334 additions and 11 deletions
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35
src/xenia/gpu/shaders/pixel_formats.xesli
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@@ -358,19 +358,20 @@ xesl_float4 XeUnpackR10G10B10A2Float(uint p) {
// Upper 16 bits are ignored by XeUnpackR16EdramX4.
xesl_float4 XeUnpackR16EdramX4(xesl_uint4 p) {
return max(xesl_float4(xesl_int4(p) << 16 >> 16) * (32.0 / 32767.0), -1.0);
return max((-1.0).xxxx,
xesl_float4(xesl_int4(p) << 16 >> 16) * (32.0 / 32767.0));
}
xesl_float2 XeUnpackR16G16Edram(uint p) {
return max(
xesl_float2(int(p).xx << xesl_int2(16, 0) >> 16) * (32.0 / 32767.0),
-1.0);
(-1.0).xx,
xesl_float2(int(p).xx << xesl_int2(16, 0) >> 16) * (32.0 / 32767.0));
}
xesl_float4 XeUnpackR16G16B16A16Edram(xesl_uint2 p) {
return max(xesl_float4(xesl_int2(p).xxyy << xesl_int2(16, 0).xyxy >> 16) *
(32.0 / 32767.0),
-1.0);
return max((-1.0).xxxx,
xesl_float4(xesl_int2(p).xxyy << xesl_int2(16, 0).xyxy >> 16) *
(32.0 / 32767.0));
}
// Xenos 16-bit packed textures are RGBA, but in Direct3D 12 they are BGRA.
@@ -497,6 +498,28 @@ void XeR11G11B10SNormToRGBA16(xesl_uint4 packed_texels, out xesl_uint4 out_01,
out_23 = XeR11G11B10SNormToRGBA16(packed_texels.zw);
}
xesl_uint4 XeRG16UNormToRG16Float(xesl_uint4 packed_texels) {
xesl_float4 r = xesl_float4(packed_texels & 0xFFFFu) * (1.0 / 65535.0);
xesl_float4 g = xesl_float4(packed_texels >> 16u) * (1.0 / 65535.0);
return xesl_uint4(xesl_packHalf2x16(xesl_float2(r.x, g.x)),
xesl_packHalf2x16(xesl_float2(r.y, g.y)),
xesl_packHalf2x16(xesl_float2(r.z, g.z)),
xesl_packHalf2x16(xesl_float2(r.w, g.w)));
}
xesl_uint4 XeRG16SNormToRG16Float(xesl_uint4 packed_texels) {
xesl_float4 r =
max((-1.0).xxxx,
xesl_float4(xesl_int4(packed_texels) << 16 >> 16) * (1.0 / 32767.0));
xesl_float4 g =
max((-1.0).xxxx,
xesl_float4(xesl_int4(packed_texels) >> 16) * (1.0 / 32767.0));
return xesl_uint4(xesl_packHalf2x16(xesl_float2(r.x, g.x)),
xesl_packHalf2x16(xesl_float2(r.y, g.y)),
xesl_packHalf2x16(xesl_float2(r.z, g.z)),
xesl_packHalf2x16(xesl_float2(r.w, g.w)));
}
// Based on CFloat24 from d3dref9.dll and the 6e4 code from:
// https://github.com/Microsoft/DirectXTex/blob/master/DirectXTex/DirectXTexConvert.cpp
// 6e4 has a different exponent bias allowing [0,512) values, 20e4 allows [0,2).