Function _fastTextureLoad

Engine/source/gfx/gl/gfxGLTextureManager.cpp:229–255

//-----------------------------------------------------------------------------

static void _fastTextureLoad(GFXGLTextureObject* texture, GBitmap* pDL)
{
   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->getBuffer());
   U32 bufSize = pDL->getWidth(0) * pDL->getHeight(0) * pDL->getBytesPerPixel();
   glBufferData(GL_PIXEL_UNPACK_BUFFER, bufSize, NULL, GL_STREAM_DRAW);
   
   if(pDL->getFormat() == GFXFormatR8G8B8A8 || pDL->getFormat() == GFXFormatR8G8B8X8)
   {
      PROFILE_SCOPE(Swizzle32_Upload);
      U8* pboMemory = (U8*)dMalloc(bufSize);
      GFX->getDeviceSwizzle32()->ToBuffer(pboMemory, pDL->getBits(0), bufSize);
      glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufSize, pboMemory );
      dFree(pboMemory);
   }
   else
   {
      PROFILE_SCOPE(SwizzleNull_Upload);
      glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, bufSize, pDL->getBits(0) );
   }
   
   if(texture->getBinding() == GL_TEXTURE_2D)
	   glTexSubImage2D(texture->getBinding(), 0, 0, 0, pDL->getWidth(0), pDL->getHeight(0), GFXGLTextureFormat[pDL->getFormat()], GFXGLTextureType[pDL->getFormat()], NULL);
   else
	   glTexSubImage1D(texture->getBinding(), 0, 0, (pDL->getWidth(0) > 1 ? pDL->getWidth(0) : pDL->getHeight(0)), GFXGLTextureFormat[pDL->getFormat()], GFXGLTextureType[pDL->getFormat()], NULL);
   
   glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}

static void _slowTextureLoad(GFXGLTextureObject* texture, GBitmap* pDL)
{