// prepare values ImageSize, TextureSize, and ColorFormat based on image
void COpenGLTexture::getImageValues(ISGPImage* image)
{
COpenGLConfig* pOpenGLConfig = COpenGLConfig::getInstance();
if (!image)
{
Logger::getCurrentLogger()->writeToLog(String("No image for OpenGL texture."), ELL_ERROR);
return;
}
ImageSize = image->getDimension();
if ( !ImageSize.Width || !ImageSize.Height)
{
Logger::getCurrentLogger()->writeToLog(String("Invalid size of image for OpenGL Texture."), ELL_ERROR);
return;
}
const float ratio = (float)ImageSize.Width/(float)ImageSize.Height;
if ( (ImageSize.Width > pOpenGLConfig->MaxTextureSize) && (ratio >= 1.0f) )
{
ImageSize.Width = pOpenGLConfig->MaxTextureSize;
ImageSize.Height = (uint32)(pOpenGLConfig->MaxTextureSize/ratio);
}
else if (ImageSize.Height > pOpenGLConfig->MaxTextureSize)
{
ImageSize.Height = pOpenGLConfig->MaxTextureSize;
ImageSize.Width = (uint32)(pOpenGLConfig->MaxTextureSize*ratio);
}
TextureSize = ImageSize.getOptimalSize( !RenderDevice->queryDriverFeature(SGPVDF_TEXTURE_NPOT) );
m_ColorFormat = getBestColorFormat(image->getColorFormat());
}
// prepare values ImageSize, TextureSize, and ColorFormat based on image
void COpenGLTexture::getImageValues(IImage* image)
{
IRR_ASSERT(image);
ImageSize = image->getDimension();
IRR_ASSERT(ImageSize.Width && ImageSize.Height);
const f32 ratio = (f32) ImageSize.Width / (f32) ImageSize.Height;
if ((ImageSize.Width > Driver->getMaxTextureSize().Width)
&& (ratio >= 1.0f))
{
ImageSize.Width = Driver->getMaxTextureSize().Width;
ImageSize.Height = (u32) (Driver->getMaxTextureSize().Height
/ ratio);
}
else if (ImageSize.Height > Driver->getMaxTextureSize().Height)
{
ImageSize.Height = Driver->getMaxTextureSize().Height;
ImageSize.Width = (u32) (Driver->getMaxTextureSize().Width
* ratio);
}
TextureSize = ImageSize.getOptimalSize(
!SharedOpenGLExtensionHandler::getInstance().queryFeature(
EVDF_TEXTURE_NPOT));
ColorFormat = getBestColorFormat(image->getColorFormat());
}
void CD3D9Texture::getImageValues(const IImage* image)
{
OriginalColorFormat = image->getColorFormat();
ColorFormat = getBestColorFormat(OriginalColorFormat);
InternalFormat = Driver->getD3DFormatFromColorFormat(ColorFormat);
if (IImage::isCompressedFormat(image->getColorFormat()))
{
AutoGenerateMipMaps = false;
}
OriginalSize = image->getDimension();
Size = OriginalSize;
if (Size.Width == 0 || Size.Height == 0)
{
os::Printer::log("Invalid size of image for texture.", ELL_ERROR);
return;
}
const f32 ratio = (f32)Size.Width / (f32)Size.Height;
if ((Size.Width > Driver->Caps.MaxTextureWidth) && (ratio >= 1.f))
{
Size.Width = Driver->Caps.MaxTextureWidth;
Size.Height = (u32)(Driver->Caps.MaxTextureWidth / ratio);
}
else if (Size.Height > Driver->Caps.MaxTextureHeight)
{
Size.Height = Driver->Caps.MaxTextureHeight;
Size.Width = (u32)(Driver->Caps.MaxTextureHeight * ratio);
}
bool needSquare = (!Driver->queryFeature(EVDF_TEXTURE_NSQUARE) || Type == ETT_CUBEMAP);
Size = Size.getOptimalSize(!Driver->queryFeature(EVDF_TEXTURE_NPOT), needSquare, true, Driver->Caps.MaxTextureWidth);
Pitch = Size.Width * IImage::getBitsPerPixelFromFormat(ColorFormat) / 8;
}
