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// slang-support.h
#pragma once
#include "core/slang-std-writers.h"
#include "options.h"
#include "shader-input-layout.h"
#include "slang.h"
#include <slang-rhi.h>
namespace renderer_test
{
/// Bridge from core debug callback to RHI debug callback
/// This allows core callbacks to receive messages from RHI systems
/// TODO: We should replace rhi::IDebugCallback with Slang::IDebugCallback.
class CoreToRHIDebugBridge : public rhi::IDebugCallback
{
public:
void setCoreCallback(Slang::IDebugCallback* coreCallback) { m_coreCallback = coreCallback; }
virtual SLANG_NO_THROW void SLANG_MCALL handleMessage(
rhi::DebugMessageType type,
rhi::DebugMessageSource source,
const char* message) override
{
if (m_coreCallback)
{
// Convert RHI types to core types
Slang::DebugMessageType coreType = static_cast<Slang::DebugMessageType>(type);
Slang::DebugMessageSource coreSource = static_cast<Slang::DebugMessageSource>(source);
m_coreCallback->handleMessage(coreType, coreSource, message);
}
}
private:
Slang::IDebugCallback* m_coreCallback = nullptr;
};
/// Core debug callback that captures debug messages in a string buffer
class CoreDebugCallback : public Slang::IDebugCallback
{
public:
virtual SLANG_NO_THROW void SLANG_MCALL handleMessage(
Slang::DebugMessageType type,
Slang::DebugMessageSource source,
const char* message) override
{
SLANG_UNUSED(source);
// Only capture error messages
if (type == Slang::DebugMessageType::Error)
{
m_buf << message;
if (message[strlen(message) - 1] != '\n')
{
m_buf << '\n';
}
}
}
void clear() { m_buf.clear(); }
Slang::String getString() { return m_buf.toString(); }
private:
Slang::StringBuilder m_buf;
};
struct ShaderCompileRequest
{
struct SourceInfo
{
char const* path;
// The data may either be source text (in which
// case it can be assumed to be nul-terminated with
// `dataEnd` pointing at the terminator), or
// raw binary data (in which case `dataEnd` points
// at the end of the buffer).
char const* dataBegin;
char const* dataEnd;
};
struct EntryPoint
{
char const* name = nullptr;
SlangStage slangStage;
};
struct TypeConformance
{
public:
Slang::String derivedTypeName;
Slang::String baseTypeName;
Slang::Int idOverride;
};
SourceInfo source;
Slang::List<EntryPoint> entryPoints;
Slang::List<Slang::String> globalSpecializationArgs;
Slang::List<Slang::String> entryPointSpecializationArgs;
Slang::List<TypeConformance> typeConformances;
};
struct ShaderCompilerUtil
{
struct Input
{
SlangCompileTarget target;
SlangSourceLanguage sourceLanguage;
SlangPassThrough passThrough;
Slang::String profile;
};
struct Output
{
void set(slang::IComponentType* slangProgram);
void reset();
~Output() { reset(); }
ComPtr<slang::IComponentType> slangProgram;
ShaderProgramDesc desc = {};
ComPtr<slang::ISession> m_session = nullptr;
slang::IGlobalSession* globalSession = nullptr;
};
struct OutputAndLayout
{
Output output;
ShaderInputLayout layout;
Slang::String sourcePath;
};
// Wrapper for compileProgram
static SlangResult compileWithLayout(
slang::IGlobalSession* globalSession,
const Options& options,
const ShaderCompilerUtil::Input& input,
OutputAndLayout& output);
};
} // namespace renderer_test
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