www.pudn.com > d3d_grass.rar > d3dutil.h
//----------------------------------------------------------------------------- // File: D3DUtil.h // // Desc: Helper functions and typing shortcuts for Direct3D programming. // // Copyright (c) 1997-2001 Microsoft Corporation. All rights reserved //----------------------------------------------------------------------------- #ifndef D3DUTIL_H #define D3DUTIL_H #include#include //----------------------------------------------------------------------------- // Name: D3DUtil_InitMaterial() // Desc: Initializes a D3DMATERIAL8 structure, setting the diffuse and ambient // colors. It does not set emissive or specular colors. //----------------------------------------------------------------------------- VOID D3DUtil_InitMaterial( D3DMATERIAL8& mtrl, FLOAT r=0.0f, FLOAT g=0.0f, FLOAT b=0.0f, FLOAT a=1.0f ); //----------------------------------------------------------------------------- // Name: D3DUtil_InitLight() // Desc: Initializes a D3DLIGHT structure, setting the light position. The // diffuse color is set to white, specular and ambient left as black. //----------------------------------------------------------------------------- VOID D3DUtil_InitLight( D3DLIGHT8& light, D3DLIGHTTYPE ltType, FLOAT x=0.0f, FLOAT y=0.0f, FLOAT z=0.0f ); //----------------------------------------------------------------------------- // Name: D3DUtil_CreateTexture() // Desc: Helper function to create a texture. It checks the root path first, // then tries the DXSDK media path (as specified in the system registry). //----------------------------------------------------------------------------- HRESULT D3DUtil_CreateTexture( LPDIRECT3DDEVICE8 pd3dDevice, TCHAR* strTexture, LPDIRECT3DTEXTURE8* ppTexture, D3DFORMAT d3dFormat = D3DFMT_UNKNOWN ); //----------------------------------------------------------------------------- // Name: D3DUtil_SetColorKey() // Desc: Changes all texels matching the colorkey to transparent, black. //----------------------------------------------------------------------------- HRESULT D3DUtil_SetColorKey( LPDIRECT3DTEXTURE8 pTexture, DWORD dwColorKey ); //----------------------------------------------------------------------------- // Name: D3DUtil_CreateVertexShader() // Desc: Assembles and creates a file-based vertex shader //----------------------------------------------------------------------------- HRESULT D3DUtil_CreateVertexShader( LPDIRECT3DDEVICE8 pd3dDevice, TCHAR* strFilename, DWORD* pdwVertexDecl, DWORD* pdwVertexShader ); //----------------------------------------------------------------------------- // Name: D3DUtil_GetCubeMapViewMatrix() // Desc: Returns a view matrix for rendering to a face of a cubemap. //----------------------------------------------------------------------------- D3DXMATRIX D3DUtil_GetCubeMapViewMatrix( DWORD dwFace ); //----------------------------------------------------------------------------- // Name: D3DUtil_GetRotationFromCursor() // Desc: Returns a quaternion for the rotation implied by the window's cursor // position. //----------------------------------------------------------------------------- D3DXQUATERNION D3DUtil_GetRotationFromCursor( HWND hWnd, FLOAT fTrackBallRadius=1.0f ); //----------------------------------------------------------------------------- // Name: D3DUtil_SetDeviceCursor // Desc: Builds and sets a cursor for the D3D device based on hCursor. //----------------------------------------------------------------------------- HRESULT D3DUtil_SetDeviceCursor( LPDIRECT3DDEVICE8 pd3dDevice, HCURSOR hCursor, BOOL bAddWatermark ); //----------------------------------------------------------------------------- // Name: class CD3DArcBall // Desc: //----------------------------------------------------------------------------- class CD3DArcBall { INT m_iWidth; // ArcBall's window width INT m_iHeight; // ArcBall's window height FLOAT m_fRadius; // ArcBall's radius in screen coords FLOAT m_fRadiusTranslation; // ArcBall's radius for translating the target D3DXQUATERNION m_qDown; // Quaternion before button down D3DXQUATERNION m_qNow; // Composite quaternion for current drag D3DXMATRIX m_matRotation; // Matrix for arcball's orientation D3DXMATRIX m_matRotationDelta; // Matrix for arcball's orientation D3DXMATRIX m_matTranslation; // Matrix for arcball's position D3DXMATRIX m_matTranslationDelta; // Matrix for arcball's position BOOL m_bDrag; // Whether user is dragging arcball BOOL m_bRightHanded; // Whether to use RH coordinate system D3DXVECTOR3 ScreenToVector( int sx, int sy ); public: LRESULT HandleMouseMessages( HWND, UINT, WPARAM, LPARAM ); D3DXMATRIX* GetRotationMatrix() { return &m_matRotation; } D3DXMATRIX* GetRotationDeltaMatrix() { return &m_matRotationDelta; } D3DXMATRIX* GetTranslationMatrix() { return &m_matTranslation; } D3DXMATRIX* GetTranslationDeltaMatrix() { return &m_matTranslationDelta; } BOOL IsBeingDragged() { return m_bDrag; } VOID SetRadius( FLOAT fRadius ); VOID SetWindow( INT w, INT h, FLOAT r=0.9 ); VOID SetRightHanded( BOOL bRightHanded ) { m_bRightHanded = bRightHanded; } CD3DArcBall(); }; //----------------------------------------------------------------------------- // Name: class CD3DCamera // Desc: //----------------------------------------------------------------------------- class CD3DCamera { D3DXVECTOR3 m_vEyePt; // Attributes for view matrix D3DXVECTOR3 m_vLookatPt; D3DXVECTOR3 m_vUpVec; D3DXVECTOR3 m_vView; D3DXVECTOR3 m_vCross; D3DXMATRIX m_matView; D3DXMATRIX m_matBillboard; // Special matrix for billboarding effects FLOAT m_fFOV; // Attributes for projection matrix FLOAT m_fAspect; FLOAT m_fNearPlane; FLOAT m_fFarPlane; D3DXMATRIX m_matProj; public: // Access functions D3DXVECTOR3 GetEyePt() { return m_vEyePt; } D3DXVECTOR3 GetLookatPt() { return m_vLookatPt; } D3DXVECTOR3 GetUpVec() { return m_vUpVec; } D3DXVECTOR3 GetViewDir() { return m_vView; } D3DXVECTOR3 GetCross() { return m_vCross; } D3DXMATRIX GetViewMatrix() { return m_matView; } D3DXMATRIX GetBillboardMatrix() { return m_matBillboard; } D3DXMATRIX GetProjMatrix() { return m_matProj; } VOID SetViewParams( D3DXVECTOR3 &vEyePt, D3DXVECTOR3& vLookatPt, D3DXVECTOR3& vUpVec ); VOID SetProjParams( FLOAT fFOV, FLOAT fAspect, FLOAT fNearPlane, FLOAT fFarPlane ); CD3DCamera(); }; //----------------------------------------------------------------------------- // Helper macros for pixel shader instructions //----------------------------------------------------------------------------- // Parameter writemasks #define D3DPSP_WRITEMASK_B D3DSP_WRITEMASK_0 #define D3DPSP_WRITEMASK_G D3DSP_WRITEMASK_1 #define D3DPSP_WRITEMASK_R D3DSP_WRITEMASK_2 #define D3DPSP_WRITEMASK_A D3DSP_WRITEMASK_3 #define D3DPSP_WRITEMASK_C (D3DPSP_WRITEMASK_B|D3DPSP_WRITEMASK_G|D3DPSP_WRITEMASK_R) #define D3DPSP_WRITEMASK_ALL (D3DSP_WRITEMASK_0|D3DSP_WRITEMASK_1|D3DSP_WRITEMASK_2|D3DSP_WRITEMASK_3) #define D3DPSP_WRITEMASK_10 (D3DSP_WRITEMASK_0|D3DSP_WRITEMASK_1) #define D3DPSP_WRITEMASK_32 (D3DSP_WRITEMASK_2|D3DSP_WRITEMASK_3) // Source and destination parameter token #define D3DPS_REGNUM_MASK(_Num) ( (1L<<31) | ((_Num)&D3DSP_REGNUM_MASK) ) #define D3DPS_DST(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSPR_TEMP | D3DPSP_WRITEMASK_ALL ) #define D3DPS_SRC_TEMP(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_TEMP ) #define D3DPS_SRC_INPUT(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_INPUT ) #define D3DPS_SRC_CONST(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_CONST ) #define D3DPS_SRC_TEXTURE(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_TEXTURE ) #define D3DVS_SRC_ADDR(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_ADDR ) #define D3DVS_SRC_RASTOUT(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_RASTOUT ) #define D3DVS_SRC_ATTROUT(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_ATTROUT ) #define D3DVS_SRC_TEXCRDOUT(_Num) ( D3DPS_REGNUM_MASK(_Num) | D3DSP_NOSWIZZLE | D3DSPR_TEXCRDOUT ) // Temp destination registers #define D3DS_DR0 D3DPS_DST(0) #define D3DS_DR1 D3DPS_DST(1) #define D3DS_DR2 D3DPS_DST(2) #define D3DS_DR3 D3DPS_DST(3) #define D3DS_DR4 D3DPS_DST(4) #define D3DS_DR5 D3DPS_DST(5) #define D3DS_DR6 D3DPS_DST(6) #define D3DS_DR7 D3DPS_DST(7) // Temp source registers #define D3DS_SR0 D3DPS_SRC_TEMP(0) #define D3DS_SR1 D3DPS_SRC_TEMP(1) #define D3DS_SR2 D3DPS_SRC_TEMP(2) #define D3DS_SR3 D3DPS_SRC_TEMP(3) #define D3DS_SR4 D3DPS_SRC_TEMP(4) #define D3DS_SR5 D3DPS_SRC_TEMP(5) #define D3DS_SR6 D3DPS_SRC_TEMP(6) #define D3DS_SR7 D3DPS_SRC_TEMP(7) // Texture parameters #define D3DS_T0 D3DPS_SRC_TEXTURE(0) #define D3DS_T1 D3DPS_SRC_TEXTURE(1) #define D3DS_T2 D3DPS_SRC_TEXTURE(2) #define D3DS_T3 D3DPS_SRC_TEXTURE(3) #define D3DS_T4 D3DPS_SRC_TEXTURE(4) #define D3DS_T5 D3DPS_SRC_TEXTURE(5) #define D3DS_T6 D3DPS_SRC_TEXTURE(6) #define D3DS_T7 D3DPS_SRC_TEXTURE(7) // Constant (factor) source parameters #define D3DS_C0 D3DPS_SRC_CONST(0) #define D3DS_C1 D3DPS_SRC_CONST(1) #define D3DS_C2 D3DPS_SRC_CONST(2) #define D3DS_C3 D3DPS_SRC_CONST(3) #define D3DS_C4 D3DPS_SRC_CONST(4) #define D3DS_C5 D3DPS_SRC_CONST(5) #define D3DS_C6 D3DPS_SRC_CONST(6) #define D3DS_C7 D3DPS_SRC_CONST(7) // Iterated source parameters (0==Diffuse, 1==specular) #define D3DS_V0 D3DPS_SRC_INPUT(0) #define D3DS_V1 D3DPS_SRC_INPUT(1) #endif // D3DUTIL_H