In the OpenGL side of my engine i load in bianry blocks containing S3 Compressed textures in the folloding way:
glCompressedTexImage2D(GL_TEXTURE_2D, currentMipMapLevel, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, width, height, 0, compressedWidth * compressedHeight * 8, data); on the directx side for non-compressed textures i do this:
d3DDevice->CreateTexture(width,height,numLevels,usage,format,D3DPOOL_MANAGED,currentTextureReference,NULL)(*currentTextureReference)->LockRect(0U,&rect,0, 0))); switch(format) { case(D3DFMT_A8R8G8B8): case(D3DFMT_A8B8G8R8): case(D3DFMT_R8G8B8): { // Change the pointer received from LockRect into a 32bit pointer DWORD* pData=(DWORD*)(rect.pBits); Uint pixelIndex(0U); if(width >= height) { for(int x=0; x < width; ++x) { for(int y=0; y < height; ++y) { // Get Pixel data Byte red(*(data + pixelIndex)); Byte green(*(data + pixelIndex + (sizeof(cyan::Byte)))); Byte blue(*(data + pixelIndex + (sizeof(cyan::Byte)*2U))); if(D3DFMT_R8G8B8 == format) { // 24 bit textures pData[(((rect.Pitch/bytesPerPixel) * (y)) + x)] = D3DCOLOR_XRGB(red,green,blue); } else{ // 32 bit textures cyan::Byte alpha(*(data + pixelIndex + (sizeof(cyan::Byte)*3U))); pData[(((rect.Pitch/bytesPerPixel) * (y)) + x)] = D3DCOLOR_ARGB(alpha,red,green,blue); } pixelIndex += bytesPerPixel; } } }....(*currentTextureReference)->UnlockRect(0U) This loads uncompressed textures from binary but i have to manually fill each pixel of the texture to avoid problems with pitch. What would be the equivalent for loading dxt1-5 compressed textures? i know that each dxt format has a pitch so cant do a memcpy directly from the binary into the texture. Does anyone know how i can load dxt1=5 textures in from memory?
thanks.
[Edited by - treeway on September 2, 2010 3:38:23 AM]
