C++ (Cpp) DllImageLib::LoadImageFromMemory Examples

Example #1

File: Texture.cpp Project: vod777/xbmc

bool CBaseTexture::LoadFromFileInMem(unsigned char* buffer, size_t size, const std::string& mimeType, unsigned int maxWidth, unsigned int maxHeight)
{
  if (!buffer || !size)
    return false;

  //ImageLib is sooo sloow for jpegs. Try our own decoder first. If it fails, fall back to ImageLib.
  if (mimeType == "image/jpeg")
  {
    CJpegIO jpegfile;
    if (jpegfile.Read(buffer, size, maxWidth, maxHeight))
    {
      if (jpegfile.Width() > 0 && jpegfile.Height() > 0)
      {
        Allocate(jpegfile.Width(), jpegfile.Height(), XB_FMT_A8R8G8B8);
        if (jpegfile.Decode(m_pixels, GetPitch(), XB_FMT_A8R8G8B8))
        {
          m_hasAlpha=false;
          ClampToEdge();
          return true;
        }
      }
    }
  }
  DllImageLib dll;
  if (!dll.Load())
    return false;

  ImageInfo image;
  memset(&image, 0, sizeof(image));

  unsigned int width = maxWidth ? std::min(maxWidth, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();
  unsigned int height = maxHeight ? std::min(maxHeight, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();

  CStdString ext = mimeType;
  int nPos = ext.Find('/');
  if (nPos > -1)
    ext.Delete(0, nPos + 1);

  if(!dll.LoadImageFromMemory(buffer, size, ext.c_str(), width, height, &image))
  {
    CLog::Log(LOGERROR, "Texture manager unable to load image from memory");
    return false;
  }
  LoadFromImage(image);
  dll.ReleaseImage(&image);

  return true;
}