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#ifndef SLANG_TEST_SHADER_INPUT_LAYOUT_H
#define SLANG_TEST_SHADER_INPUT_LAYOUT_H
#include "source/core/slang-basic.h"
#include "source/core/slang-random-generator.h"
#include "source/core/slang-writer.h"
#include "slang-gfx.h"
namespace renderer_test {
using namespace gfx;
enum class ShaderInputType
{
Buffer,
Texture,
Sampler,
CombinedTextureSampler,
Array,
UniformData,
Object,
Aggregate,
};
enum class InputTextureContent
{
Zero, One, ChessBoard, Gradient
};
struct InputTextureDesc
{
int dimension = 2;
int arrayLength = 0;
bool isCube = false;
bool isDepthTexture = false;
bool isRWTexture = false;
int size = 4;
int mipMapCount = 0; ///< 0 means the maximum number of mips will be bound
Format format = Format::RGBA_Unorm_UInt8;
InputTextureContent content = InputTextureContent::One;
};
enum class InputBufferType
{
// ConstantBuffer,
StorageBuffer,
// RootConstantBuffer,
};
struct InputBufferDesc
{
InputBufferType type = InputBufferType::StorageBuffer;
int stride = 0; // stride == 0 indicates an unstructured buffer.
Format format = Format::Unknown;
};
struct InputSamplerDesc
{
bool isCompareSampler = false;
};
struct TextureData
{
Slang::List<Slang::List<unsigned int>> dataBuffer;
int textureSize;
int mipLevels;
int arraySize;
};
class ShaderInputLayout
{
public:
class Val : public Slang::RefObject
{
public:
Val(ShaderInputType kind)
: kind(kind)
{}
ShaderInputType kind;
bool isOutput = false;
};
typedef Slang::RefPtr<Val> ValPtr;
class TextureVal : public Val
{
public:
TextureVal()
: Val(ShaderInputType::Texture)
{}
InputTextureDesc textureDesc;
};
class DataValBase : public Val
{
public:
DataValBase(ShaderInputType kind)
: Val(kind)
{}
Slang::List<unsigned int> bufferData;
};
class BufferVal : public DataValBase
{
public:
BufferVal()
: DataValBase(ShaderInputType::Buffer)
{}
InputBufferDesc bufferDesc;
};
class DataVal : public DataValBase
{
public:
DataVal()
: DataValBase(ShaderInputType::UniformData)
{}
};
class SamplerVal : public Val
{
public:
SamplerVal()
: Val(ShaderInputType::Sampler)
{}
InputSamplerDesc samplerDesc;
};
class CombinedTextureSamplerVal : public Val
{
public:
CombinedTextureSamplerVal()
: Val(ShaderInputType::CombinedTextureSampler)
{}
Slang::RefPtr<TextureVal> textureVal;
Slang::RefPtr<SamplerVal> samplerVal;
};
struct Field
{
Slang::String name;
ValPtr val;
};
typedef Field Entry;
class ParentVal : public Val
{
public:
ParentVal(ShaderInputType kind)
: Val(kind)
{}
virtual void addField(Field const& field) = 0;
};
class AggVal : public ParentVal
{
public:
AggVal(ShaderInputType kind = ShaderInputType::Aggregate)
: ParentVal(kind)
{}
Slang::List<Field> fields;
virtual void addField(Field const& field) override;
};
class ObjectVal : public Val
{
public:
ObjectVal()
: Val(ShaderInputType::Object)
{}
Slang::String typeName;
ValPtr contentVal;
};
class ArrayVal : public ParentVal
{
public:
ArrayVal()
: ParentVal(ShaderInputType::Array)
{}
Slang::List<ValPtr> vals;
virtual void addField(Field const& field) override;
};
Slang::RefPtr<AggVal> rootVal;
Slang::List<Slang::String> globalSpecializationArgs;
Slang::List<Slang::String> entryPointSpecializationArgs;
int numRenderTargets = 1;
Slang::Index findEntryIndexByName(const Slang::String& name) const;
void parse(Slang::RandomGenerator* rand, const char* source);
/// Writes a binding, if bindRoot is set, will try to honor the underlying type when outputting. If not will dump as uint32_t hex.
static SlangResult writeBinding(slang::TypeLayoutReflection* typeLayout, const void* data, size_t sizeInBytes, Slang::WriterHelper writer);
};
void generateTextureDataRGB8(TextureData& output, const InputTextureDesc& desc);
void generateTextureData(TextureData& output, const InputTextureDesc& desc);
} // namespace render_test
#endif
|
