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#pragma once
#include "core/slang-basic.h"
#include "slang-rhi.h"
#include "unit-test/slang-unit-test.h"
using namespace rhi;
using Slang::RefObject;
using Slang::RefPtr;
namespace gfx_test
{
struct Strides
{
Size x;
Size y;
Size z;
};
struct ValidationTextureFormatBase : RefObject
{
virtual void validateBlocksEqual(const void* actual, const void* expected) = 0;
virtual void initializeTexel(
void* texel,
uint32_t x,
uint32_t y,
uint32_t z,
uint32_t mip,
uint32_t layer) = 0;
};
template<typename T>
struct ValidationTextureFormat : ValidationTextureFormatBase
{
uint32_t componentCount;
ValidationTextureFormat(uint32_t componentCount)
: componentCount(componentCount){};
virtual void validateBlocksEqual(const void* actual, const void* expected) override
{
auto a = (const T*)actual;
auto e = (const T*)expected;
for (uint32_t i = 0; i < componentCount; ++i)
{
SLANG_CHECK(a[i] == e[i]);
}
}
virtual void initializeTexel(
void* texel,
uint32_t x,
uint32_t y,
uint32_t z,
uint32_t mip,
uint32_t layer) override
{
auto temp = (T*)texel;
switch (componentCount)
{
case 1:
temp[0] = T(x + y + z + mip + layer);
break;
case 2:
temp[0] = T(x + z + layer);
temp[1] = T(y + mip);
break;
case 3:
temp[0] = T(x + mip);
temp[1] = T(y + layer);
temp[2] = T(z);
break;
case 4:
temp[0] = T(x + layer);
temp[1] = (T)y;
temp[2] = (T)z;
temp[3] = (T)mip;
break;
default:
assert("component count should be no greater than 4");
SLANG_CHECK_ABORT(false);
}
}
};
template<typename T>
struct PackedValidationTextureFormat : ValidationTextureFormatBase
{
int rBits;
int gBits;
int bBits;
int aBits;
PackedValidationTextureFormat(int rBits, int gBits, int bBits, int aBits)
: rBits(rBits), gBits(gBits), bBits(bBits), aBits(aBits){};
virtual void validateBlocksEqual(const void* actual, const void* expected) override
{
T a[4];
T e[4];
unpackTexel(*(const T*)actual, a);
unpackTexel(*(const T*)expected, e);
for (uint32_t i = 0; i < 4; ++i)
{
SLANG_CHECK(a[i] == e[i]);
}
}
virtual void initializeTexel(
void* texel,
uint32_t x,
uint32_t y,
uint32_t z,
uint32_t mip,
uint32_t layer) override
{
T temp = 0;
// The only formats which currently use this have either 3 or 4 channels. TODO: BC formats?
if (aBits == 0)
{
temp |= z;
temp <<= gBits;
temp |= (y + layer);
temp <<= rBits;
temp |= (x + mip);
}
else
{
temp |= mip;
temp <<= bBits;
temp |= z;
temp <<= gBits;
temp |= y;
temp <<= rBits;
temp |= (x + layer);
}
*(T*)texel = temp;
}
void unpackTexel(T texel, T* outComponents)
{
outComponents[0] = texel & ((1 << rBits) - 1);
texel >>= rBits;
outComponents[1] = texel & ((1 << gBits) - 1);
texel >>= gBits;
outComponents[2] = texel & ((1 << bBits) - 1);
texel >>= bBits;
outComponents[3] = texel & ((1 << aBits) - 1);
texel >>= aBits;
}
};
// Struct containing texture data and information for a specific subresource.
struct ValidationTextureData : RefObject
{
const void* textureData;
Extent3D extent;
Strides pitches;
void* getBlockAt(uint32_t x, uint32_t y, uint32_t z)
{
assert(x < extent.width);
assert(y < extent.height);
assert(z < extent.depth);
char* layerData = (char*)textureData + z * pitches.z;
char* rowData = layerData + y * pitches.y;
return rowData + x * pitches.x;
}
};
// Struct containing relevant information for a texture, including a list of its subresources
// and all relevant information for each subresource.
struct TextureInfo : RefObject
{
Format format;
TextureType textureType;
Extent3D extent;
uint32_t mipCount;
uint32_t arrayLength;
std::vector<RefPtr<ValidationTextureData>> subresourceObjects;
std::vector<SubresourceData> subresourceDatas;
~TextureInfo();
};
inline TextureType toArrayType(TextureType type)
{
switch (type)
{
case TextureType::Texture1D:
return TextureType::Texture1DArray;
case TextureType::Texture2D:
return TextureType::Texture2DArray;
case TextureType::Texture2DMS:
return TextureType::Texture2DMSArray;
case TextureType::TextureCube:
return TextureType::TextureCubeArray;
default:
return type;
}
}
Size getTexelSize(Format format);
RefPtr<ValidationTextureFormatBase> getValidationTextureFormat(Format format);
void generateTextureData(
RefPtr<TextureInfo> texture,
ValidationTextureFormatBase* validationFormat);
std::vector<uint8_t> removePadding(
ISlangBlob* pixels,
uint32_t width,
uint32_t height,
Size rowPitch,
Size pixelSize);
Result writeImage(const char* filename, ISlangBlob* pixels, uint32_t width, uint32_t height);
Result writeImage(
const char* filename,
ISlangBlob* pixels,
uint32_t width,
uint32_t height,
uint32_t rowPitch,
uint32_t pixelSize);
} // namespace gfx_test
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