www.pudn.com > tilesrc.zip > Textures.cpp

#include "textures.h" 
#include  
#define _RGB16BIT565(r,g,b) ((b & 31) + ((g & 63) << 6) + ((r & 31) << 11)) 
 
///////////////////////////////////////////////////////////////////////////// 
// Texture Management Routines 
///////////////////////////////////////////////////////////////////////////// 
 
CTexture::CTexture() { 
	Width = 64; 
	Height = 32; 
}; 
 
HRESULT CALLBACK EnumTextures( LPDDPIXELFORMAT DDPixelFormat, LPVOID pDDDesiredPixelFormat )   
{   
    if( DDPixelFormat->dwFlags & DDPF_ALPHAPIXELS && DDPixelFormat->dwRGBBitCount == 16 )   
    {   
        if( DDPixelFormat->dwRGBAlphaBitMask == 1 || DDPixelFormat->dwRGBAlphaBitMask == 0x8000 )   
        {   
            memcpy( pDDDesiredPixelFormat, DDPixelFormat, sizeof(DDPIXELFORMAT) );   
            return D3DENUMRET_CANCEL;   
        }   
    }   
    return D3DENUMRET_OK;   
} 
 
 
// There is an easier way to load textures, I just didn't think of it in time! 
void CTexture::LoadTexture(char * filename, LPDIRECT3DDEVICE3 D3DDevice, LPDIRECTDRAW4 DirectDraw) { 
	 
	DDPIXELFORMAT TexturePixelFormat; 
 
	if (FAILED(D3DDevice->EnumTextureFormats(( LPD3DENUMPIXELFORMATSCALLBACK )EnumTextures, ( void* )&TexturePixelFormat))) { 
		exit(10); 
	}; 
 
 
	DDSURFACEDESC2 Desc;   
	ZeroMemory( &Desc, sizeof( DDSURFACEDESC2 ));   
	Desc.dwSize = sizeof( Desc );   
	Desc.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS | DDSD_CKSRCBLT;   
	Desc.dwWidth = Width;   
	Desc.dwHeight = Height;   
	Desc.ddsCaps.dwCaps = DDSCAPS_TEXTURE;   
	Desc.ddsCaps.dwCaps2 = DDSCAPS2_TEXTUREMANAGE;   
	Desc.ddpfPixelFormat = TexturePixelFormat; 
	Desc.ddckCKSrcBlt.dwColorSpaceHighValue = _RGB16BIT565(255,0,255); 
	Desc.ddckCKSrcBlt.dwColorSpaceLowValue = _RGB16BIT565(255,0,255); 
	 
	DirectDraw->CreateSurface( &Desc, &Surface, 0 );   
	Surface->QueryInterface( IID_IDirect3DTexture2, ( void **)&Texture ); 
 
	HBITMAP hBM;   
	BITMAP BM;   
	HDC hDCImage, hDC;   
	 
	hBM = ( HBITMAP ) LoadImage( NULL, filename, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_CREATEDIBSECTION ); 
	if (hBM == NULL) { 
		exit(10); 
	}; 
	 
	GetObject( hBM, sizeof( BM ), &BM );   
	 
	hDCImage = CreateCompatibleDC( NULL );   
	SelectObject( hDCImage, hBM );   
	 
	if( SUCCEEDED( Surface->GetDC( &hDC )))   
	{   
		BitBlt( hDC, 0, 0, Width, Height, hDCImage, 0, 0, SRCCOPY );   
		Surface->ReleaseDC( hDC );   
	} else { 
		exit(10); 
	}; 
	 
	DeleteDC( hDCImage );   
	DeleteObject( hBM ); 
}; 
 
CTexture::~CTexture() { 
	Texture->Release(); 
	Surface->Release(); 
};