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Commit 3412d870 by Alexis Hetu Committed by Alexis Hétu
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Added integer type texture support to SamplerCore code

This cl doesn't entirely enable integer texture sampling, but it adds the required cases in SamplerCore. To fully enable these types, only a few small selection functions will be required so that the proper types use the proper sampling code. Change-Id: Ie101d782dd9b43c96d8e0198c49fe9ec6855b007 Reviewed-on: https://swiftshader-review.googlesource.com/4150Tested-by: 's avatarAlexis Hétu <sugoi@google.com> Reviewed-by: 's avatarNicolas Capens <capn@google.com>
parent 2b052f89
Showing with 261 additions and 15 deletions
src/Shader/SamplerCore.cpp
...@@ -188,8 +188,39 @@ namespace sw ...@@ -188,8 +188,39 @@ namespace sw
switch(state.textureFormat) switch(state.textureFormat)
{ {
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8: case FORMAT_R8:
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
case FORMAT_G8R8:
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_G16R16:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_R32I:
case FORMAT_R32UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
case FORMAT_X8R8G8B8: case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
case FORMAT_A8R8G8B8: case FORMAT_A8R8G8B8:
...@@ -200,9 +231,6 @@ namespace sw ...@@ -200,9 +231,6 @@ namespace sw
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
case FORMAT_G8R8:
case FORMAT_G16R16:
case FORMAT_A16B16G16R16:
case FORMAT_YV12_BT601: case FORMAT_YV12_BT601:
case FORMAT_YV12_BT709: case FORMAT_YV12_BT709:
case FORMAT_YV12_JFIF: case FORMAT_YV12_JFIF:
...@@ -234,6 +262,7 @@ namespace sw ...@@ -234,6 +262,7 @@ namespace sw
c.w = Short4(0x1000, 0x1000, 0x1000, 0x1000); c.w = Short4(0x1000, 0x1000, 0x1000, 0x1000);
case FORMAT_A32B32G32R32F: case FORMAT_A32B32G32R32F:
break; break;
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
...@@ -364,21 +393,51 @@ namespace sw ...@@ -364,21 +393,51 @@ namespace sw
} }
else else
{ {
if(state.sRGB && isRGBComponent(component)) switch(state.textureFormat)
{
sRGBtoLinear16_8_12(cs[component]); // FIXME: Perform linearization at surface level for read-only textures
convertSigned12(c[component], cs[component]);
}
else
{ {
if(hasUnsignedTextureComponent(component)) case FORMAT_R8I:
case FORMAT_G8R8I:
case FORMAT_X8B8G8R8I:
case FORMAT_A8B8G8R8I:
c[component] = As<Float4>(Int4(cs[component]) >> 8);
break;
case FORMAT_R8UI:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8UI:
c[component] = As<Float4>(Int4(As<UShort4>(cs[component]) >> 8));
break;
case FORMAT_R16I:
case FORMAT_G16R16I:
case FORMAT_X16B16G16R16I:
case FORMAT_A16B16G16R16I:
c[component] = As<Float4>(Int4(cs[component]));
break;
case FORMAT_R16UI:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16UI:
c[component] = As<Float4>(Int4(As<UShort4>(cs[component])));
break;
default:
// Normalized integer formats
if(state.sRGB && isRGBComponent(component))
{ {
convertUnsigned16(c[component], cs[component]); sRGBtoLinear16_8_12(cs[component]); // FIXME: Perform linearization at surface level for read-only textures
convertSigned12(c[component], cs[component]);
} }
else else
{ {
convertSigned15(c[component], cs[component]); if(hasUnsignedTextureComponent(component))
{
convertUnsigned16(c[component], cs[component]);
}
else
{
convertSigned15(c[component], cs[component]);
}
} }
break;
} }
} }
} }
...@@ -390,8 +449,43 @@ namespace sw ...@@ -390,8 +449,43 @@ namespace sw
{ {
switch(state.textureFormat) switch(state.textureFormat)
{ {
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_R32I:
case FORMAT_R32UI:
c.y = As<Float4>(UInt4(0));
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
c.z = As<Float4>(UInt4(0));
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
c.w = As<Float4>(UInt4(1));
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
break;
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8: case FORMAT_R8:
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
case FORMAT_G8R8:
case FORMAT_G16R16:
case FORMAT_A16B16G16R16:
case FORMAT_X8R8G8B8: case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
case FORMAT_A8R8G8B8: case FORMAT_A8R8G8B8:
...@@ -402,9 +496,6 @@ namespace sw ...@@ -402,9 +496,6 @@ namespace sw
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
case FORMAT_G8R8:
case FORMAT_G16R16:
case FORMAT_A16B16G16R16:
if(componentCount < 2) c.y = Float4(1.0f); if(componentCount < 2) c.y = Float4(1.0f);
if(componentCount < 3) c.z = Float4(1.0f); if(componentCount < 3) c.z = Float4(1.0f);
if(componentCount < 4) c.w = Float4(1.0f); if(componentCount < 4) c.w = Float4(1.0f);
...@@ -433,6 +524,7 @@ namespace sw ...@@ -433,6 +524,7 @@ namespace sw
c.w = Float4(1.0f); c.w = Float4(1.0f);
case FORMAT_A32B32G32R32F: case FORMAT_A32B32G32R32F:
break; break;
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
...@@ -1635,6 +1727,9 @@ namespace sw ...@@ -1635,6 +1727,9 @@ namespace sw
c.w = UnpackHigh(As<Byte8>(c.w), As<Byte8>(c.w)); c.w = UnpackHigh(As<Byte8>(c.w), As<Byte8>(c.w));
break; break;
case FORMAT_A8B8G8R8: case FORMAT_A8B8G8R8:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_Q8W8V8U8: case FORMAT_Q8W8V8U8:
c.z = c.x; c.z = c.x;
c.x = As<Short4>(UnpackLow(c.x, c.y)); c.x = As<Short4>(UnpackLow(c.x, c.y));
...@@ -1671,6 +1766,9 @@ namespace sw ...@@ -1671,6 +1766,9 @@ namespace sw
c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(c.y)); c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(c.y));
c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(c.x)); c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(c.x));
break; break;
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_X8B8G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
case FORMAT_X8L8V8U8: case FORMAT_X8L8V8U8:
c.z = c.x; c.z = c.x;
...@@ -1695,6 +1793,9 @@ namespace sw ...@@ -1695,6 +1793,9 @@ namespace sw
switch(state.textureFormat) switch(state.textureFormat)
{ {
case FORMAT_G8R8: case FORMAT_G8R8:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_G8R8I_SNORM:
case FORMAT_V8U8: case FORMAT_V8U8:
case FORMAT_A8L8: case FORMAT_A8L8:
c.y = (c.x & Short4(0xFF00u, 0xFF00u, 0xFF00u, 0xFF00u)) | As<Short4>(As<UShort4>(c.x) >> 8); c.y = (c.x & Short4(0xFF00u, 0xFF00u, 0xFF00u, 0xFF00u)) | As<Short4>(As<UShort4>(c.x) >> 8);
...@@ -2063,6 +2164,26 @@ namespace sw ...@@ -2063,6 +2164,26 @@ namespace sw
{ {
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
return true; return true;
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_R32I:
case FORMAT_R32UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
case FORMAT_G8R8: case FORMAT_G8R8:
case FORMAT_X8R8G8B8: case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
...@@ -2078,6 +2199,7 @@ namespace sw ...@@ -2078,6 +2199,7 @@ namespace sw
case FORMAT_R8: case FORMAT_R8:
case FORMAT_L8: case FORMAT_L8:
case FORMAT_A8L8: case FORMAT_A8L8:
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
...@@ -2087,6 +2209,14 @@ namespace sw ...@@ -2087,6 +2209,14 @@ namespace sw
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_YV12_BT601: case FORMAT_YV12_BT601:
case FORMAT_YV12_BT709: case FORMAT_YV12_BT709:
case FORMAT_YV12_JFIF: case FORMAT_YV12_JFIF:
...@@ -2114,11 +2244,24 @@ namespace sw ...@@ -2114,11 +2244,24 @@ namespace sw
case FORMAT_R8: case FORMAT_R8:
case FORMAT_L8: case FORMAT_L8:
case FORMAT_A8L8: case FORMAT_A8L8:
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
return true; return true;
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
case FORMAT_R32F: case FORMAT_R32F:
case FORMAT_G32R32F: case FORMAT_G32R32F:
case FORMAT_A32B32G32R32F: case FORMAT_A32B32G32R32F:
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
...@@ -2128,6 +2271,22 @@ namespace sw ...@@ -2128,6 +2271,22 @@ namespace sw
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
case FORMAT_R32I:
case FORMAT_R32UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_YV12_BT601: case FORMAT_YV12_BT601:
case FORMAT_YV12_BT709: case FORMAT_YV12_BT709:
case FORMAT_YV12_JFIF: case FORMAT_YV12_JFIF:
...@@ -2144,6 +2303,26 @@ namespace sw ...@@ -2144,6 +2303,26 @@ namespace sw
switch(state.textureFormat) switch(state.textureFormat)
{ {
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_R32I:
case FORMAT_R32UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
case FORMAT_G8R8: case FORMAT_G8R8:
case FORMAT_X8R8G8B8: case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
...@@ -2159,6 +2338,7 @@ namespace sw ...@@ -2159,6 +2338,7 @@ namespace sw
case FORMAT_R8: case FORMAT_R8:
case FORMAT_L8: case FORMAT_L8:
case FORMAT_A8L8: case FORMAT_A8L8:
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
...@@ -2169,6 +2349,14 @@ namespace sw ...@@ -2169,6 +2349,14 @@ namespace sw
case FORMAT_L16: case FORMAT_L16:
case FORMAT_G16R16: case FORMAT_G16R16:
case FORMAT_A16B16G16R16: case FORMAT_A16B16G16R16:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
...@@ -2189,6 +2377,26 @@ namespace sw ...@@ -2189,6 +2377,26 @@ namespace sw
case FORMAT_YV12_JFIF: case FORMAT_YV12_JFIF:
return true; return true;
case FORMAT_R5G6B5: case FORMAT_R5G6B5:
case FORMAT_R8I_SNORM:
case FORMAT_G8R8I_SNORM:
case FORMAT_X8B8G8R8I_SNORM:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_R8I:
case FORMAT_R8UI:
case FORMAT_G8R8I:
case FORMAT_G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8UI:
case FORMAT_A8B8G8R8I:
case FORMAT_A8B8G8R8UI:
case FORMAT_R32I:
case FORMAT_R32UI:
case FORMAT_G32R32I:
case FORMAT_G32R32UI:
case FORMAT_X32B32G32R32I:
case FORMAT_X32B32G32R32UI:
case FORMAT_A32B32G32R32I:
case FORMAT_A32B32G32R32UI:
case FORMAT_G8R8: case FORMAT_G8R8:
case FORMAT_X8R8G8B8: case FORMAT_X8R8G8B8:
case FORMAT_X8B8G8R8: case FORMAT_X8B8G8R8:
...@@ -2204,12 +2412,21 @@ namespace sw ...@@ -2204,12 +2412,21 @@ namespace sw
case FORMAT_R8: case FORMAT_R8:
case FORMAT_L8: case FORMAT_L8:
case FORMAT_A8L8: case FORMAT_A8L8:
case FORMAT_D32F:
case FORMAT_D32F_LOCKABLE: case FORMAT_D32F_LOCKABLE:
case FORMAT_D32FS8_TEXTURE: case FORMAT_D32FS8_TEXTURE:
case FORMAT_D32FS8_SHADOW: case FORMAT_D32FS8_SHADOW:
case FORMAT_L16: case FORMAT_L16:
case FORMAT_G16R16: case FORMAT_G16R16:
case FORMAT_A16B16G16R16: case FORMAT_A16B16G16R16:
case FORMAT_R16I:
case FORMAT_R16UI:
case FORMAT_G16R16I:
case FORMAT_G16R16UI:
case FORMAT_X16B16G16R16I:
case FORMAT_X16B16G16R16UI:
case FORMAT_A16B16G16R16I:
case FORMAT_A16B16G16R16UI:
case FORMAT_V16U16: case FORMAT_V16U16:
case FORMAT_A16W16V16U16: case FORMAT_A16W16V16U16:
case FORMAT_Q16W16V16U16: case FORMAT_Q16W16V16U16:
...@@ -2226,6 +2443,26 @@ namespace sw ...@@ -2226,6 +2443,26 @@ namespace sw
switch(state.textureFormat) switch(state.textureFormat)
{ {
case FORMAT_R5G6B5: return component < 3; case FORMAT_R5G6B5: return component < 3;
case FORMAT_R8I_SNORM: return component < 1;
case FORMAT_G8R8I_SNORM: return component < 2;
case FORMAT_X8B8G8R8I_SNORM: return component < 3;
case FORMAT_A8B8G8R8I_SNORM: return component < 3;
case FORMAT_R8I: return component < 1;
case FORMAT_R8UI: return component < 1;
case FORMAT_G8R8I: return component < 2;
case FORMAT_G8R8UI: return component < 2;
case FORMAT_X8B8G8R8I: return component < 3;
case FORMAT_X8B8G8R8UI: return component < 3;
case FORMAT_A8B8G8R8I: return component < 3;
case FORMAT_A8B8G8R8UI: return component < 3;
case FORMAT_R32I: return component < 1;
case FORMAT_R32UI: return component < 1;
case FORMAT_G32R32I: return component < 2;
case FORMAT_G32R32UI: return component < 2;
case FORMAT_X32B32G32R32I: return component < 3;
case FORMAT_X32B32G32R32UI: return component < 3;
case FORMAT_A32B32G32R32I: return component < 3;
case FORMAT_A32B32G32R32UI: return component < 3;
case FORMAT_G8R8: return component < 2; case FORMAT_G8R8: return component < 2;
case FORMAT_X8R8G8B8: return component < 3; case FORMAT_X8R8G8B8: return component < 3;
case FORMAT_X8B8G8R8: return component < 3; case FORMAT_X8B8G8R8: return component < 3;
...@@ -2241,12 +2478,21 @@ namespace sw ...@@ -2241,12 +2478,21 @@ namespace sw
case FORMAT_R8: return component < 1; case FORMAT_R8: return component < 1;
case FORMAT_L8: return component < 1; case FORMAT_L8: return component < 1;
case FORMAT_A8L8: return component < 1; case FORMAT_A8L8: return component < 1;
case FORMAT_D32F: return false;
case FORMAT_D32F_LOCKABLE: return false; case FORMAT_D32F_LOCKABLE: return false;
case FORMAT_D32FS8_TEXTURE: return false; case FORMAT_D32FS8_TEXTURE: return false;
case FORMAT_D32FS8_SHADOW: return false; case FORMAT_D32FS8_SHADOW: return false;
case FORMAT_L16: return component < 1; case FORMAT_L16: return component < 1;
case FORMAT_G16R16: return component < 2; case FORMAT_G16R16: return component < 2;
case FORMAT_A16B16G16R16: return component < 3; case FORMAT_A16B16G16R16: return component < 3;
case FORMAT_R16I: return component < 1;
case FORMAT_R16UI: return component < 1;
case FORMAT_G16R16I: return component < 2;
case FORMAT_G16R16UI: return component < 2;
case FORMAT_X16B16G16R16I: return component < 3;
case FORMAT_X16B16G16R16UI: return component < 3;
case FORMAT_A16B16G16R16I: return component < 3;
case FORMAT_A16B16G16R16UI: return component < 3;
case FORMAT_V16U16: return false; case FORMAT_V16U16: return false;
case FORMAT_A16W16V16U16: return false; case FORMAT_A16W16V16U16: return false;
case FORMAT_Q16W16V16U16: return false; case FORMAT_Q16W16V16U16: return false;
......
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