void ESSUB_LoadPNG (const std::string& aPath, Texture** aTexture)
{
assert(aTexture);
wchar_t buffer[1024];
MultiByteToWideChar(CP_UTF8, 0, aPath.c_str(), -1, buffer, 512);
Texture* output = 0;
Bitmap img(buffer, false);
if(img.GetWidth())
{
output = ESVideo::CreateTexture(img.GetWidth(), img.GetHeight(), true);
output->Clear(0);
BitmapData BMData;
BMData.Width = std::min(output->GetWidth(), img.GetWidth());
BMData.Height = std::min(output->GetHeight(), img.GetHeight());
BMData.Stride = output->GetWidth() * 4;
BMData.PixelFormat = PixelFormat32bppARGB;
BMData.Scan0 = output->Map();
BMData.Reserved = 0;
Rect area(0, 0, img.GetWidth(), img.GetHeight());
img.LockBits(&area, ImageLockModeRead | ImageLockModeUserInputBuf, PixelFormat32bppARGB, &BMData);
img.UnlockBits(&BMData);
output->Unmap();
}
*aTexture = output;
}
Texture* GetTexture ()
{
Texture* output = 0;
if(Valid)
{
output = ESVideo::CreateTexture(Width, Height, true);
output->Clear(0);
uint32_t copyWidth = std::min(Width, output->GetWidth());
uint32_t copyHeight = std::min(Height, output->GetHeight());
uint32_t* texPixels = output->Map();
for(int i = 0; i != copyHeight; i ++)
{
uint32_t* dest = texPixels + (output->GetPitch() * i);
uint8_t* source = RowPointers[i];
for(int j = 0; j != copyWidth; j ++)
{
uint32_t a = (InfoPtr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) ? *source++ : 0xFF;
uint32_t r = *source ++;
uint32_t g = *source ++;
uint32_t b = *source ++;
*dest++ = output->ConvertPixel(r, g, b, a);
}
}
output->Unmap();
}
return output;
}
