///////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) Microsoft Corporation.  All Rights Reserved.
//
//  File:       d3dx8effect.h
//  Content:    D3DX effect types and functions
//
///////////////////////////////////////////////////////////////////////////

#include "d3dx8.h"

#ifndef __D3DX8EFFECT_H__
#define __D3DX8EFFECT_H__


#define D3DXFX_DONOTSAVESTATE  (1 << 0)


typedef enum _D3DXPARAMETERTYPE
{
    D3DXPT_DWORD        = 0,
    D3DXPT_FLOAT        = 1,
    D3DXPT_VECTOR       = 2,
    D3DXPT_MATRIX       = 3,
    D3DXPT_TEXTURE      = 4,
    D3DXPT_VERTEXSHADER = 5,
    D3DXPT_PIXELSHADER  = 6,
    D3DXPT_CONSTANT     = 7,
    D3DXPT_STRING       = 8,
    D3DXPT_FORCE_DWORD  = 0x7fffffff /* force 32-bit size enum */

} D3DXPARAMETERTYPE;


typedef struct _D3DXEFFECT_DESC
{
    UINT Parameters;
    UINT Techniques;

} D3DXEFFECT_DESC;


typedef struct _D3DXPARAMETER_DESC
{
    LPCSTR Name;
    LPCSTR Index;
    D3DXPARAMETERTYPE Type;

} D3DXPARAMETER_DESC;


typedef struct _D3DXTECHNIQUE_DESC
{
    LPCSTR Name;
    LPCSTR Index;
    UINT   Passes;

} D3DXTECHNIQUE_DESC;


typedef struct _D3DXPASS_DESC
{
    LPCSTR Name;
    LPCSTR Index;

} D3DXPASS_DESC;



//////////////////////////////////////////////////////////////////////////////
// ID3DXEffect ///////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

typedef interface ID3DXEffect ID3DXEffect;
typedef interface ID3DXEffect *LPD3DXEFFECT;

// {648B1CEB-8D4E-4d66-B6FA-E44969E82E89}
DEFINE_GUID( IID_ID3DXEffect, 
0x648b1ceb, 0x8d4e, 0x4d66, 0xb6, 0xfa, 0xe4, 0x49, 0x69, 0xe8, 0x2e, 0x89);


#undef INTERFACE
#define INTERFACE ID3DXEffect

DECLARE_INTERFACE_(ID3DXEffect, IUnknown)
{
    // IUnknown
    STDMETHOD(QueryInterface)(THIS_ REFIID iid, LPVOID *ppv) PURE;
    STDMETHOD_(ULONG, AddRef)(THIS) PURE;
    STDMETHOD_(ULONG, Release)(THIS) PURE;

    // ID3DXEffect
    STDMETHOD(GetDevice)(THIS_ LPDIRECT3DDEVICE8* ppDevice) PURE;
    STDMETHOD(GetDesc)(THIS_ D3DXEFFECT_DESC* pDesc) PURE;
    STDMETHOD(GetParameterDesc)(THIS_ LPCSTR pParameter, D3DXPARAMETER_DESC* pDesc) PURE;
    STDMETHOD(GetTechniqueDesc)(THIS_ LPCSTR pTechnique, D3DXTECHNIQUE_DESC* pDesc) PURE;
    STDMETHOD(GetPassDesc)(THIS_ LPCSTR pTechnique, LPCSTR pPass, D3DXPASS_DESC* pDesc) PURE;
    STDMETHOD(FindNextValidTechnique)(THIS_ LPCSTR pTechnique, D3DXTECHNIQUE_DESC* pDesc) PURE;
    STDMETHOD(CloneEffect)(THIS_ LPDIRECT3DDEVICE8 pDevice, LPD3DXEFFECT* ppEffect) PURE;
    STDMETHOD(GetCompiledEffect)(THIS_ LPD3DXBUFFER* ppCompiledEffect) PURE;

    STDMETHOD(SetTechnique)(THIS_ LPCSTR pTechnique) PURE;
    STDMETHOD(GetTechnique)(THIS_ LPCSTR* ppTechnique) PURE;

    STDMETHOD(SetDword)(THIS_ LPCSTR pParameter, DWORD dw) PURE;
    STDMETHOD(GetDword)(THIS_ LPCSTR pParameter, DWORD* pdw) PURE; 
    STDMETHOD(SetFloat)(THIS_ LPCSTR pParameter, FLOAT f) PURE;
    STDMETHOD(GetFloat)(THIS_ LPCSTR pParameter, FLOAT* pf) PURE;    
    STDMETHOD(SetVector)(THIS_ LPCSTR pParameter, CONST D3DXVECTOR4* pVector) PURE;
    STDMETHOD(GetVector)(THIS_ LPCSTR pParameter, D3DXVECTOR4* pVector) PURE;
    STDMETHOD(SetMatrix)(THIS_ LPCSTR pParameter, CONST D3DXMATRIX* pMatrix) PURE;
    STDMETHOD(GetMatrix)(THIS_ LPCSTR pParameter, D3DXMATRIX* pMatrix) PURE;
    STDMETHOD(SetTexture)(THIS_ LPCSTR pParameter, LPDIRECT3DBASETEXTURE8 pTexture) PURE;
    STDMETHOD(GetTexture)(THIS_ LPCSTR pParameter, LPDIRECT3DBASETEXTURE8 *ppTexture) PURE;
    STDMETHOD(SetVertexShader)(THIS_ LPCSTR pParameter, DWORD Handle) PURE;
    STDMETHOD(GetVertexShader)(THIS_ LPCSTR pParameter, DWORD* pHandle) PURE;
    STDMETHOD(SetPixelShader)(THIS_ LPCSTR pParameter, DWORD Handle) PURE;
    STDMETHOD(GetPixelShader)(THIS_ LPCSTR pParameter, DWORD* pHandle) PURE;
    STDMETHOD(SetString)(THIS_ LPCSTR pParameter, LPCSTR pString) PURE;
    STDMETHOD(GetString)(THIS_ LPCSTR pParameter, LPCSTR* ppString) PURE;
    STDMETHOD_(BOOL, IsParameterUsed)(THIS_ LPCSTR pParameter) PURE;

    STDMETHOD(Validate)(THIS) PURE;
    STDMETHOD(Begin)(THIS_ UINT *pPasses, DWORD Flags) PURE;
    STDMETHOD(Pass)(THIS_ UINT Pass) PURE;
    STDMETHOD(End)(THIS) PURE;
    STDMETHOD(OnLostDevice)(THIS) PURE;
    STDMETHOD(OnResetDevice)(THIS) PURE;
};



//////////////////////////////////////////////////////////////////////////////
// APIs //////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////


#ifdef __cplusplus
extern "C" {
#endif //__cplusplus


//----------------------------------------------------------------------------
// D3DXCreateEffect:
// -----------------
// Creates an effect from an ascii or binaray effect description.
//
// Parameters:
//  pDevice
//      Pointer of the device on which to create the effect
//  pSrcFile
//      Name of the file containing the effect description
//  hSrcModule
//      Module handle. if NULL, current module will be used.
//  pSrcResource
//      Resource name in module
//  pSrcData
//      Pointer to effect description
//  SrcDataSize
//      Size of the effect description in bytes
//  ppEffect
//      Returns a buffer containing created effect.
//  ppCompilationErrors
//      Returns a buffer containing any error messages which occurred during
//      compile.  Or NULL if you do not care about the error messages.
//
//----------------------------------------------------------------------------

HRESULT WINAPI
    D3DXCreateEffectFromFileA(
        LPDIRECT3DDEVICE8 pDevice,
        LPCSTR            pSrcFile,
        LPD3DXEFFECT*     ppEffect,
        LPD3DXBUFFER*     ppCompilationErrors);

HRESULT WINAPI
    D3DXCreateEffectFromFileW(
        LPDIRECT3DDEVICE8 pDevice,
        LPCWSTR           pSrcFile,
        LPD3DXEFFECT*     ppEffect,
        LPD3DXBUFFER*     ppCompilationErrors);

#ifdef UNICODE
#define D3DXCreateEffectFromFile D3DXCreateEffectFromFileW
#else
#define D3DXCreateEffectFromFile D3DXCreateEffectFromFileA
#endif


HRESULT WINAPI
    D3DXCreateEffectFromResourceA(
        LPDIRECT3DDEVICE8 pDevice,
        HMODULE           hSrcModule,
        LPCSTR            pSrcResource,
        LPD3DXEFFECT*     ppEffect,
        LPD3DXBUFFER*     ppCompilationErrors);

HRESULT WINAPI
    D3DXCreateEffectFromResourceW(
        LPDIRECT3DDEVICE8 pDevice,
        HMODULE           hSrcModule,
        LPCWSTR           pSrcResource,
        LPD3DXEFFECT*     ppEffect,
        LPD3DXBUFFER*     ppCompilationErrors);

#ifdef UNICODE
#define D3DXCreateEffectFromResource D3DXCreateEffectFromResourceW
#else
#define D3DXCreateEffectFromResource D3DXCreateEffectFromResourceA
#endif


HRESULT WINAPI
    D3DXCreateEffect(
        LPDIRECT3DDEVICE8 pDevice,
        LPCVOID           pSrcData,
        UINT              SrcDataSize,
        LPD3DXEFFECT*     ppEffect,
        LPD3DXBUFFER*     ppCompilationErrors);


#ifdef __cplusplus
}
#endif //__cplusplus

#endif //__D3DX8EFFECT_H__