bool CBaseTexture::LoadFromFile(const CStdString& texturePath, unsigned int maxWidth, unsigned int maxHeight,
bool autoRotate, unsigned int *originalWidth, unsigned int *originalHeight,
unsigned int dstWidth, unsigned int dstHeight)
{
//Quick and dirty check if the file is DDS file...
CFile file;
if (!file.Open(texturePath))
{
CLog::Log(LOGERROR, "%s - Error opening texture file: %s", __FUNCTION__, texturePath.c_str());
return false;
}
// read the header
uint32_t magic;
if (file.Read(&magic, 4) != 4)
{
CLog::Log(LOGERROR, "%s - Can't read signature from file: %s", __FUNCTION__, texturePath.c_str());
return false;
}
if (strncmp((const char *)&magic, "DDS ", 4) == 0 || CUtil::GetExtension(texturePath).Equals(".dds"))
{ // special case for DDS images
CDDSImage image;
CLog::Log(LOGDEBUG, "%s - loading dds file: %s", __FUNCTION__, texturePath.c_str());
image.ReadFile(texturePath);
Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
return true;
}
DllImageLib dll;
if (!dll.Load())
return false;
ImageInfo image;
memset(&image, 0, sizeof(image));
//image.width = dstWidth;
//image.height = dstHeight;
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();
if(!dll.LoadImage(texturePath.c_str(), width, height, &image))
{
CLog::Log(LOGERROR, "Texture manager unable to load file: %s", texturePath.c_str());
return false;
}
Allocate(image.width, image.height, XB_FMT_B8G8R8A8);
if (autoRotate && image.exifInfo.Orientation)
m_orientation = image.exifInfo.Orientation - 1;
if (originalWidth)
*originalWidth = image.originalwidth;
if (originalHeight)
*originalHeight = image.originalheight;
unsigned int destPitch = GetPitch();
unsigned int srcPitch = ((image.width + 1)* 3 / 4) * 4; // bitmap row length is aligned to 4 bytes
// test background color for alpha blending
long nBkgndIndex;
RGBQUAD nBkgndColor;
dll.GetBackgroundColor(&image, &nBkgndColor, &nBkgndIndex);
for (unsigned int y = 0; y < m_imageHeight; y++)
{
unsigned char *dst = m_pixels + y * destPitch;
unsigned char *src = image.texture + (m_imageHeight - 1 - y) * srcPitch;
unsigned char *alpha = image.alpha + (m_imageHeight - 1 - y) * m_imageWidth;
for (unsigned int x = 0; x < m_imageWidth; x++)
{
*dst++ = *src++;
*dst++ = *src++;
*dst++ = *src++;
*dst++ = (image.alpha) ? *alpha++ : 0xff;
}
}
if (nBkgndIndex != -1)
{
for (unsigned int y = 0; y < m_imageHeight; y++)
{
unsigned char *dst = m_pixels + y * destPitch;
//unsigned char *src = image.texture + (m_imageHeight - 1 - y) * srcPitch;
//unsigned char *alpha = image.alpha + (m_imageHeight - 1 - y) * m_imageWidth;
for (unsigned int x = 0; x < m_imageWidth; x++)
{
if (*dst == nBkgndColor.rgbBlue
&& *(dst + 1) == nBkgndColor.rgbGreen
&& *(dst + 2) == nBkgndColor.rgbRed)
{
*(dst + 3) = 0x00;
}
dst += 4;
}
}
}
dll.ReleaseImage(&image);
ClampToEdge();
return true;
}
