#ifndef SHADER_COMPILER_H
#define SHADER_COMPILER_H

#include "tier1/interface.h"
#include "tier1/utlvector.h"
#include "tier1/utlbuffer.h"
#include "tier2/iappsystem.h"
#include "materialsystem/shaderinternals.h"

struct HostShaderLump_t
{
	void *m_pAddress;
	uint32_t m_nSize;
};

class CCompiledShader
{
public:
	CUtlVector<ShaderObject_t> m_objects = {}; 
	CUtlVector<HostShaderLump_t> m_lumps = {}; 

	~CCompiledShader();

	uint32_t AllocateLump( uint32_t nSize );
	void *GetLumpPtr( uint32_t nLump );
	uint32_t GetLumpSize( uint32_t nLump );
	ShaderObject_t *AllocateShader();

	ShaderObject_t *FindShaderObject( EShaderBackend eBackend, EShaderStage eStage );
};

abstract_class IShaderCompiler: public IAppSystem
{
public:
	virtual void CompileShader( const char *szInput, CCompiledShader *pShader ) = 0;
};

#define SLANG_SHADER_COMPILER_SPIRV_VULKAN "ShaderCompilerSlangVulkanSpirv"
#define SLANG_SHADER_COMPILER_CODE_METAL "ShaderCompilerSlangMetalCode"

#endif