Unnormalized integer formats now all use the same path
Integer formats are: UInt32/Int32/UInt16/Int16/UInt8/Int8
The 32 bit formats required using the floating point path for precision,
while the 16 bit and 8 bit formats were going through the short integer
path. Since all formats need to be treated as Int within a 32 bit Float
in the end, this cl unifies all integer formats under the same path.
Related dEQP tests are: functional.texture.format.sized.2d.*
Bug swiftshader:76
Change-Id: Ia2e0972243290e8b1139081222a3f19ab9e65c9f
Reviewed-on: https://swiftshader-review.googlesource.com/10748
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Shader/SamplerCore.cpp b/src/Shader/SamplerCore.cpp
index bf0ff25..55c1712 100644
--- a/src/Shader/SamplerCore.cpp
+++ b/src/Shader/SamplerCore.cpp
@@ -314,7 +314,7 @@
}
else
{
- if(hasFloatTexture() || state.highPrecisionFiltering) // FIXME: Mostly identical to integer sampling
+ if(hasFloatTexture() || hasUnnormalizedIntegerTexture() || state.highPrecisionFiltering) // FIXME: Mostly identical to integer sampling
{
Float4 uuuu = u;
Float4 vvvv = v;
@@ -390,51 +390,22 @@
{
for(int component = 0; component < textureComponentCount(); component++)
{
- switch(state.textureFormat)
+ // Normalized integer formats
+ if(state.sRGB && isRGBComponent(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))
+ sRGBtoLinear16_8_12(cs[component]); // FIXME: Perform linearization at surface level for read-only textures
+ convertSigned12(c[component], cs[component]);
+ }
+ else
+ {
+ if(hasUnsignedTextureComponent(component))
{
- sRGBtoLinear16_8_12(cs[component]); // FIXME: Perform linearization at surface level for read-only textures
- convertSigned12(c[component], cs[component]);
+ convertUnsigned16(c[component], cs[component]);
}
else
{
- if(hasUnsignedTextureComponent(component))
- {
- convertUnsigned16(c[component], cs[component]);
- }
- else
- {
- convertSigned15(c[component], cs[component]);
- }
+ convertSigned15(c[component], cs[component]);
}
- break;
}
}
}
@@ -1800,8 +1771,7 @@
switch(state.textureFormat)
{
case FORMAT_A8R8G8B8:
- c.z = c.x;
- c.z = As<Short4>(UnpackLow(c.z, c.y));
+ c.z = As<Short4>(UnpackLow(c.x, c.y));
c.x = As<Short4>(UnpackHigh(c.x, c.y));
c.y = c.z;
c.w = c.x;
@@ -1812,19 +1782,35 @@
break;
case FORMAT_A8B8G8R8:
case FORMAT_A8B8G8R8I:
- case FORMAT_A8B8G8R8UI:
case FORMAT_A8B8G8R8I_SNORM:
case FORMAT_Q8W8V8U8:
case FORMAT_SRGB8_A8:
- c.z = c.x;
+ c.z = As<Short4>(UnpackHigh(c.x, c.y));
c.x = As<Short4>(UnpackLow(c.x, c.y));
- c.z = As<Short4>(UnpackHigh(c.z, c.y));
c.y = c.x;
c.w = c.z;
c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(c.x));
c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(c.y));
c.z = UnpackLow(As<Byte8>(c.z), As<Byte8>(c.z));
c.w = UnpackHigh(As<Byte8>(c.w), As<Byte8>(c.w));
+ // Propagate sign bit
+ if(state.textureFormat == FORMAT_A8B8G8R8I)
+ {
+ c.x >>= 8;
+ c.y >>= 8;
+ c.z >>= 8;
+ c.w >>= 8;
+ }
+ break;
+ case FORMAT_A8B8G8R8UI:
+ c.z = As<Short4>(UnpackHigh(c.x, c.y));
+ c.x = As<Short4>(UnpackLow(c.x, c.y));
+ c.y = c.x;
+ c.w = c.z;
+ c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(Short4(0)));
+ c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(Short4(0)));
+ c.z = UnpackLow(As<Byte8>(c.z), As<Byte8>(Short4(0)));
+ c.w = UnpackHigh(As<Byte8>(c.w), As<Byte8>(Short4(0)));
break;
default:
ASSERT(false);
@@ -1843,8 +1829,7 @@
switch(state.textureFormat)
{
case FORMAT_X8R8G8B8:
- c.z = c.x;
- c.z = As<Short4>(UnpackLow(c.z, c.y));
+ c.z = As<Short4>(UnpackLow(c.x, c.y));
c.x = As<Short4>(UnpackHigh(c.x, c.y));
c.y = c.z;
c.z = UnpackLow(As<Byte8>(c.z), As<Byte8>(c.z));
@@ -1852,18 +1837,31 @@
c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(c.x));
break;
case FORMAT_X8B8G8R8I_SNORM:
- case FORMAT_X8B8G8R8UI:
case FORMAT_X8B8G8R8I:
case FORMAT_X8B8G8R8:
case FORMAT_X8L8V8U8:
case FORMAT_SRGB8_X8:
- c.z = c.x;
+ c.z = As<Short4>(UnpackHigh(c.x, c.y));
c.x = As<Short4>(UnpackLow(c.x, c.y));
- c.z = As<Short4>(UnpackHigh(c.z, c.y));
c.y = c.x;
c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(c.x));
c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(c.y));
c.z = UnpackLow(As<Byte8>(c.z), As<Byte8>(c.z));
+ // Propagate sign bit
+ if(state.textureFormat == FORMAT_X8B8G8R8I)
+ {
+ c.x >>= 8;
+ c.y >>= 8;
+ c.z >>= 8;
+ }
+ break;
+ case FORMAT_X8B8G8R8UI:
+ c.z = As<Short4>(UnpackHigh(c.x, c.y));
+ c.x = As<Short4>(UnpackLow(c.x, c.y));
+ c.y = c.x;
+ c.x = UnpackLow(As<Byte8>(c.x), As<Byte8>(Short4(0)));
+ c.y = UnpackHigh(As<Byte8>(c.y), As<Byte8>(Short4(0)));
+ c.z = UnpackLow(As<Byte8>(c.z), As<Byte8>(Short4(0)));
break;
default:
ASSERT(false);
@@ -1879,14 +1877,20 @@
switch(state.textureFormat)
{
case FORMAT_G8R8:
- case FORMAT_G8R8I:
- case FORMAT_G8R8UI:
case FORMAT_G8R8I_SNORM:
case FORMAT_V8U8:
case FORMAT_A8L8:
c.y = (c.x & Short4(0xFF00u)) | As<Short4>(As<UShort4>(c.x) >> 8);
c.x = (c.x & Short4(0x00FFu)) | (c.x << 8);
break;
+ case FORMAT_G8R8I:
+ c.y = c.x >> 8;
+ c.x = (c.x << 8) >> 8; // Propagate sign bit
+ break;
+ case FORMAT_G8R8UI:
+ c.y = As<Short4>(As<UShort4>(c.x) >> 8);
+ c.x &= Short4(0x00FFu);
+ break;
default:
ASSERT(false);
}
@@ -1898,7 +1902,25 @@
Int c2 = Int(*Pointer<Byte>(buffer[f2] + index[2]));
Int c3 = Int(*Pointer<Byte>(buffer[f3] + index[3]));
c0 = c0 | (c1 << 8) | (c2 << 16) | (c3 << 24);
- c.x = Unpack(As<Byte4>(c0));
+
+ switch(state.textureFormat)
+ {
+ case FORMAT_R8I:
+ case FORMAT_R8UI:
+ {
+ Int zero(0);
+ c.x = Unpack(As<Byte4>(c0), As<Byte4>(zero));
+ // Propagate sign bit
+ if(state.textureFormat == FORMAT_R8I)
+ {
+ c.x = (c.x << 8) >> 8;
+ }
+ }
+ break;
+ default:
+ c.x = Unpack(As<Byte4>(c0));
+ break;
+ }
}
break;
default:
@@ -2050,7 +2072,7 @@
computeIndices(index, uuuu, vvvv, wwww, mipmap, function);
- if(hasFloatTexture())
+ if(hasFloatTexture() || has32bitIntegerTextureComponents())
{
int f0 = state.textureType == TEXTURE_CUBE ? 0 : 0;
int f1 = state.textureType == TEXTURE_CUBE ? 1 : 0;
@@ -2429,6 +2451,11 @@
return Surface::isFloatFormat(state.textureFormat);
}
+ bool SamplerCore::hasUnnormalizedIntegerTexture() const
+ {
+ return Surface::isNonNormalizedInteger(state.textureFormat);
+ }
+
bool SamplerCore::hasUnsignedTextureComponent(int component) const
{
return Surface::isUnsignedComponent(state.textureFormat, component);
@@ -2663,6 +2690,79 @@
return false;
}
+ bool SamplerCore::has32bitIntegerTextureComponents() const
+ {
+ switch(state.textureFormat)
+ {
+ 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_G8R8:
+ case FORMAT_X8R8G8B8:
+ case FORMAT_X8B8G8R8:
+ case FORMAT_A8R8G8B8:
+ case FORMAT_A8B8G8R8:
+ case FORMAT_SRGB8_X8:
+ case FORMAT_SRGB8_A8:
+ case FORMAT_V8U8:
+ case FORMAT_Q8W8V8U8:
+ case FORMAT_X8L8V8U8:
+ case FORMAT_L16:
+ case FORMAT_G16R16:
+ 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_A16W16V16U16:
+ case FORMAT_Q16W16V16U16:
+ case FORMAT_R32F:
+ case FORMAT_G32R32F:
+ case FORMAT_X32B32G32R32F:
+ case FORMAT_A32B32G32R32F:
+ case FORMAT_A8:
+ case FORMAT_R8:
+ case FORMAT_L8:
+ case FORMAT_A8L8:
+ case FORMAT_D32F:
+ case FORMAT_D32F_LOCKABLE:
+ case FORMAT_D32FS8_TEXTURE:
+ case FORMAT_D32FS8_SHADOW:
+ case FORMAT_YV12_BT601:
+ case FORMAT_YV12_BT709:
+ case FORMAT_YV12_JFIF:
+ return false;
+ case FORMAT_R32I:
+ case FORMAT_R32UI:
+ case FORMAT_G32R32I:
+ case FORMAT_G32R32UI:
+ case FORMAT_X32B32G32R32I:
+ case FORMAT_X32B32G32R32UI:
+ case FORMAT_A32B32G32R32I:
+ case FORMAT_A32B32G32R32UI:
+ return true;
+ default:
+ ASSERT(false);
+ }
+
+ return false;
+ }
+
bool SamplerCore::hasYuvFormat() const
{
switch(state.textureFormat)
diff --git a/src/Shader/SamplerCore.hpp b/src/Shader/SamplerCore.hpp
index 62c0116..e4529e2 100644
--- a/src/Shader/SamplerCore.hpp
+++ b/src/Shader/SamplerCore.hpp
@@ -96,12 +96,14 @@
void sRGBtoLinear16_5_12(Short4 &c);
bool hasFloatTexture() const;
+ bool hasUnnormalizedIntegerTexture() const;
bool hasUnsignedTextureComponent(int component) const;
int textureComponentCount() const;
bool hasThirdCoordinate() const;
bool has16bitTextureFormat() const;
bool has8bitTextureComponents() const;
bool has16bitTextureComponents() const;
+ bool has32bitIntegerTextureComponents() const;
bool hasYuvFormat() const;
bool isRGBComponent(int component) const;
