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//--------------------------------------------------------------------------------------
// File: SDKMisc.h
//
// Various helper functionality that is shared between SDK samples
//
// Copyright (c) Microsoft Corporation. All rights reserved
//--------------------------------------------------------------------------------------
#pragma once
#ifndef SDKMISC_H
#define SDKMISC_H


//-----------------------------------------------------------------------------
// Resource cache for textures, fonts, meshs, and effects.  
// Use DXUTGetGlobalResourceCache() to access the global cache
//-----------------------------------------------------------------------------

enum DXUTCACHE_SOURCELOCATION { DXUTCACHE_LOCATION_FILE, DXUTCACHE_LOCATION_RESOURCE };

struct DXUTCache_Texture
{
    DXUTCACHE_SOURCELOCATION Location;
    WCHAR wszSource[MAX_PATH];
    HMODULE hSrcModule;
    UINT Width;
    UINT Height;
    UINT Depth;
    UINT MipLevels;
    UINT MiscFlags;
    union
    {
        DWORD Usage9;
        D3D10_USAGE Usage10;
    };
    union
    {
        D3DFORMAT Format9;
        DXGI_FORMAT Format10;
    };
    union
    {
        D3DPOOL Pool9;
        UINT CpuAccessFlags;
    };
    union
    {
        D3DRESOURCETYPE Type9;
        UINT BindFlags;
    };
    IDirect3DBaseTexture9 *pTexture9;
    ID3D10ShaderResourceView* pSRV10;

    DXUTCache_Texture()
    {
        pTexture9 = NULL;
        pSRV10 = NULL;
    }
};

struct DXUTCache_Font : public D3DXFONT_DESC
{
    ID3DXFont *pFont;
};

struct DXUTCache_Effect
{
    DXUTCACHE_SOURCELOCATION Location;
    WCHAR wszSource[MAX_PATH];
    HMODULE hSrcModule;
    DWORD dwFlags;
    ID3DXEffect *pEffect;
};


class CDXUTResourceCache
{
public:
    ~CDXUTResourceCache();

    HRESULT CreateTextureFromFile( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, LPDIRECT3DTEXTURE9 *ppTexture );
    HRESULT CreateTextureFromFile( LPDIRECT3DDEVICE9 pDevice, LPCSTR pSrcFile, LPDIRECT3DTEXTURE9 *ppTexture );
    HRESULT CreateTextureFromFile( ID3D10Device* pDevice, LPCTSTR pSrcFile, ID3D10ShaderResourceView** ppOutputRV );
    HRESULT CreateTextureFromFile( ID3D10Device* pDevice, LPCSTR pSrcFile, ID3D10ShaderResourceView** ppOutputRV );
    HRESULT CreateTextureFromFileEx( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, UINT Width, UINT Height, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DTEXTURE9 *ppTexture );
    HRESULT CreateTextureFromFileEx( ID3D10Device* pDevice, LPCTSTR pSrcFile, D3DX10_IMAGE_LOAD_INFO* pLoadInfo, ID3DX10ThreadPump* pPump, ID3D10ShaderResourceView** ppOutputRV );
    HRESULT CreateTextureFromResource( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, LPDIRECT3DTEXTURE9 *ppTexture );
    HRESULT CreateTextureFromResourceEx( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, UINT Width, UINT Height, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DTEXTURE9 *ppTexture );
    HRESULT CreateCubeTextureFromFile( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, LPDIRECT3DCUBETEXTURE9 *ppCubeTexture );
    HRESULT CreateCubeTextureFromFileEx( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, UINT Size, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DCUBETEXTURE9 *ppCubeTexture );
    HRESULT CreateCubeTextureFromResource( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, LPDIRECT3DCUBETEXTURE9 *ppCubeTexture );
    HRESULT CreateCubeTextureFromResourceEx( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, UINT Size, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DCUBETEXTURE9 *ppCubeTexture );
    HRESULT CreateVolumeTextureFromFile( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, LPDIRECT3DVOLUMETEXTURE9 *ppVolumeTexture );
    HRESULT CreateVolumeTextureFromFileEx( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, UINT Width, UINT Height, UINT Depth, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DVOLUMETEXTURE9 *ppTexture );
    HRESULT CreateVolumeTextureFromResource( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, LPDIRECT3DVOLUMETEXTURE9 *ppVolumeTexture );
    HRESULT CreateVolumeTextureFromResourceEx( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, UINT Width, UINT Height, UINT Depth, UINT MipLevels, DWORD Usage, D3DFORMAT Format, D3DPOOL Pool, DWORD Filter, DWORD MipFilter, D3DCOLOR ColorKey, D3DXIMAGE_INFO *pSrcInfo, PALETTEENTRY *pPalette, LPDIRECT3DVOLUMETEXTURE9 *ppVolumeTexture );
    HRESULT CreateFont( LPDIRECT3DDEVICE9 pDevice, UINT Height, UINT Width, UINT Weight, UINT MipLevels, BOOL Italic, DWORD CharSet, DWORD OutputPrecision, DWORD Quality, DWORD PitchAndFamily, LPCTSTR pFacename, LPD3DXFONT *ppFont );
    HRESULT CreateFontIndirect( LPDIRECT3DDEVICE9 pDevice, CONST D3DXFONT_DESC *pDesc, LPD3DXFONT *ppFont );
    HRESULT CreateEffectFromFile( LPDIRECT3DDEVICE9 pDevice, LPCTSTR pSrcFile, const D3DXMACRO *pDefines, LPD3DXINCLUDE pInclude, DWORD Flags, LPD3DXEFFECTPOOL pPool, LPD3DXEFFECT *ppEffect, LPD3DXBUFFER *ppCompilationErrors );
    HRESULT CreateEffectFromResource( LPDIRECT3DDEVICE9 pDevice, HMODULE hSrcModule, LPCTSTR pSrcResource, const D3DXMACRO *pDefines, LPD3DXINCLUDE pInclude, DWORD Flags, LPD3DXEFFECTPOOL pPool, LPD3DXEFFECT *ppEffect, LPD3DXBUFFER *ppCompilationErrors );

public:
    HRESULT OnCreateDevice( IDirect3DDevice9 *pd3dDevice );
    HRESULT OnResetDevice( IDirect3DDevice9 *pd3dDevice );
    HRESULT OnLostDevice();
    HRESULT OnDestroyDevice();

protected:
    friend CDXUTResourceCache& WINAPI DXUTGetGlobalResourceCache();
    friend HRESULT WINAPI DXUTInitialize3DEnvironment();
    friend HRESULT WINAPI DXUTReset3DEnvironment();
    friend void WINAPI DXUTCleanup3DEnvironment( bool bReleaseSettings );

    CDXUTResourceCache() { }

    CGrowableArray< DXUTCache_Texture > m_TextureCache;
    CGrowableArray< DXUTCache_Effect > m_EffectCache;
    CGrowableArray< DXUTCache_Font > m_FontCache;
};

CDXUTResourceCache& WINAPI DXUTGetGlobalResourceCache();


//--------------------------------------------------------------------------------------
// Manages the insertion point when drawing text
//--------------------------------------------------------------------------------------
class CDXUTTextHelper
{
public:
    CDXUTTextHelper( ID3DXFont* pFont9 = NULL, ID3DXSprite* pSprite9 = NULL, ID3DX10Font* pFont10 = NULL, ID3DX10Sprite* pSprite10 = NULL, int nLineHeight = 15 );
    CDXUTTextHelper( ID3DXFont* pFont9, ID3DXSprite* pSprite9, int nLineHeight = 15 );
    CDXUTTextHelper( ID3DX10Font* pFont10, ID3DX10Sprite* pSprite10, int nLineHeight = 15 );
    ~CDXUTTextHelper();

    void Init( ID3DXFont* pFont9 = NULL, ID3DXSprite* pSprite9 = NULL, ID3DX10Font* pFont10 = NULL, ID3DX10Sprite* pSprite10 = NULL, int nLineHeight = 15 );

    void SetInsertionPos( int x, int y ) { m_pt.x = x; m_pt.y = y; }
    void SetForegroundColor( D3DXCOLOR clr ) { m_clr = clr; }

    void Begin();
    HRESULT DrawFormattedTextLine( const WCHAR* strMsg, ... );
    HRESULT DrawTextLine( const WCHAR* strMsg );
    HRESULT DrawFormattedTextLine( RECT &rc, DWORD dwFlags, const WCHAR* strMsg, ... );
    HRESULT DrawTextLine( RECT &rc, DWORD dwFlags, const WCHAR* strMsg );
    void End();

protected:
    ID3DXFont*   m_pFont9;
    ID3DXSprite* m_pSprite9;
    ID3DX10Font* m_pFont10;
    ID3DX10Sprite* m_pSprite10;
    D3DXCOLOR    m_clr;
    POINT        m_pt;
    int          m_nLineHeight;

    ID3D10BlendState* m_pFontBlendState10;
};


//--------------------------------------------------------------------------------------
// Manages a persistent list of lines and draws them using ID3DXLine
//--------------------------------------------------------------------------------------
class CDXUTLineManager
{
public:
    CDXUTLineManager();
    ~CDXUTLineManager();

    HRESULT OnCreatedDevice( IDirect3DDevice9* pd3dDevice );
    HRESULT OnResetDevice();
    HRESULT OnRender();
    HRESULT OnLostDevice();
    HRESULT OnDeletedDevice();

    HRESULT AddLine( int* pnLineID, D3DXVECTOR2* pVertexList, DWORD dwVertexListCount, D3DCOLOR Color, float fWidth, float fScaleRatio, bool bAntiAlias );
    HRESULT AddRect( int* pnLineID, RECT rc, D3DCOLOR Color, float fWidth, float fScaleRatio, bool bAntiAlias );
    HRESULT RemoveLine( int nLineID );
    HRESULT RemoveAllLines();

protected:
    struct LINE_NODE
    {
        int      nLineID;
        D3DCOLOR Color;
        float    fWidth;
        bool     bAntiAlias;
        float    fScaleRatio;
        D3DXVECTOR2* pVertexList;
        DWORD    dwVertexListCount;
    };

    CGrowableArray<LINE_NODE*> m_LinesList;
    IDirect3DDevice9* m_pd3dDevice;
    ID3DXLine* m_pD3DXLine;
};


//--------------------------------------------------------------------------------------
// Shared code for samples to ask user if they want to use a REF device or quit
//--------------------------------------------------------------------------------------
void WINAPI DXUTDisplaySwitchingToREFWarning( DXUTDeviceVersion ver );

//--------------------------------------------------------------------------------------
// Tries to finds a media file by searching in common locations
//--------------------------------------------------------------------------------------
HRESULT WINAPI DXUTFindDXSDKMediaFileCch( WCHAR* strDestPath, int cchDest, LPCWSTR strFilename );
HRESULT WINAPI DXUTSetMediaSearchPath( LPCWSTR strPath );
LPCWSTR WINAPI DXUTGetMediaSearchPath();


//--------------------------------------------------------------------------------------
// Returns a view matrix for rendering to a face of a cubemap.
//--------------------------------------------------------------------------------------
D3DXMATRIX WINAPI DXUTGetCubeMapViewMatrix( DWORD dwFace );


//--------------------------------------------------------------------------------------
// Takes a screen shot of a 32bit D3D10 back buffer and saves the images to a BMP file
//--------------------------------------------------------------------------------------
HRESULT DXUTSnapD3D9Screenshot( LPCTSTR szFileName );
HRESULT DXUTSnapD3D10Screenshot( LPCTSTR szFileName );

//--------------------------------------------------------------------------------------
// Simple helper stack class
//--------------------------------------------------------------------------------------
template <class T>
class CDXUTStack
{
private:
    UINT m_MemorySize;
    UINT m_NumElements;
    T*	m_pData;

    bool EnsureStackSize( UINT64 iElements )
    {
        if( m_MemorySize > iElements )
            return true;

        T* pTemp = new T[ (size_t)(iElements*2 + 256) ];
        if( !pTemp )
            return false;

        if( m_NumElements )
        {
            CopyMemory( pTemp, m_pData, (size_t)(m_NumElements*sizeof(T)) );
        }
    
        if( m_pData ) delete []m_pData;
        m_pData = pTemp;
        return true;
    }

public:
    CDXUTStack() { m_pData = NULL; m_NumElements = 0; m_MemorySize = 0; }
    ~CDXUTStack() { if( m_pData ) delete []m_pData; }

    UINT GetCount() { return m_NumElements; }
    T GetAt( UINT i ) { return m_pData[i]; }
    T GetTop()
    {
        if( m_NumElements < 1 )
            return NULL;

        return m_pData[ m_NumElements-1 ];
    }

    T GetRelative( INT i )
    {
        INT64 iVal = m_NumElements-1 + i;
        if( iVal < 0 )
            return NULL;
        return m_pData[ iVal ];
    }

    bool Push( T pElem )
    {
        if(!EnsureStackSize( m_NumElements+1 ) )
            return false;
        
        m_pData[m_NumElements] = pElem;
        m_NumElements++;

        return true;
    }

    T Pop()
    {
        if( m_NumElements < 1 )
            return NULL;

        m_NumElements --;
        return m_pData[m_NumElements];
    }
};


#endif
SDKmisc.h
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