C++ CDDSImage::GetHeight方法代码示例

bool CBaseTexture::LoadFromFileInternal(const std::string& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType)
{
  if (URIUtils::HasExtension(texturePath, ".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  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();

  // Read image into memory to use our vfs
  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  CURL url(texturePath);
  // make sure resource:// paths are properly resolved
  if (url.IsProtocol("resource"))
  {
    std::string translatedPath;
    if (XFILE::CResourceFile::TranslatePath(url, translatedPath))
      url.Parse(translatedPath);
  }

  // handle xbt:// paths differently because it allows loading the texture directly from memory
  if (url.IsProtocol("xbt"))
  {
    XFILE::CXbtFile xbtFile;
    if (!xbtFile.Open(url))
      return false;

    return LoadFromMemory(xbtFile.GetImageWidth(), xbtFile.GetImageHeight(), 0, xbtFile.GetImageFormat(),
                          xbtFile.HasImageAlpha(), reinterpret_cast<unsigned char*>(buf.get()));
  }

  IImage* pImage;

  if(strMimeType.empty())
    pImage = ImageFactory::CreateLoader(texturePath);
  else
    pImage = ImageFactory::CreateLoaderFromMimeType(strMimeType);

  if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height, autoRotate))
  {
    CLog::Log(LOGDEBUG, "%s - Load of %s failed.", __FUNCTION__, texturePath.c_str());
    delete pImage;
    return false;
  }
  delete pImage;

  return true;
}

bool CBaseTexture::LoadFromFileInternal(const std::string& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType)
{
  if (URIUtils::HasExtension(texturePath, ".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  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();

  // Read image into memory to use our vfs
  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  IImage* pImage;

  if(strMimeType.empty())
    pImage = ImageFactory::CreateLoader(texturePath);
  else
    pImage = ImageFactory::CreateLoaderFromMimeType(strMimeType);

  if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height, autoRotate))
  {
    delete pImage;
    pImage = ImageFactory::CreateFallbackLoader(texturePath);
    if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height))
    {
      CLog::Log(LOGDEBUG, "%s - Load of %s failed.", __FUNCTION__, texturePath.c_str());
      delete pImage;
      return false;
    }
  }
  delete pImage;

  return true;
}

bool CBaseTexture::LoadFromFile(const CStdString& texturePath, unsigned int maxWidth, unsigned int maxHeight,
                                bool autoRotate, unsigned int *originalWidth, unsigned int *originalHeight)
{
  if (URIUtils::GetExtension(texturePath).Equals(".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

#if defined(__APPLE__) && defined(__arm__)
  XFILE::CFile file;
  UInt8 *imageBuff      = NULL;
  int64_t imageBuffSize = 0;

  //open path and read data to buffer
  //this handles advancedsettings.xml pathsubstitution
  //and resulting networking
  if (file.Open(texturePath, 0))
  {
    imageBuffSize =file.GetLength();
    imageBuff = new UInt8[imageBuffSize];
    imageBuffSize = file.Read(imageBuff, imageBuffSize);
    file.Close();
  }
  else
  {
    CLog::Log(LOGERROR, "Texture manager unable to open file %s", texturePath.c_str());
    return false;
  }

  if (imageBuffSize <= 0)
  {
    CLog::Log(LOGERROR, "Texture manager read texture file failed.");
    delete [] imageBuff;
    return false;
  }

  // create the image from buffer;
  CGImageSourceRef imageSource;
  // create a CFDataRef using CFDataCreateWithBytesNoCopy and kCFAllocatorNull for deallocator.
  // this allows us to do a nocopy reference and we handle the free of imageBuff
  CFDataRef cfdata = CFDataCreateWithBytesNoCopy(NULL, imageBuff, imageBuffSize, kCFAllocatorNull);
  imageSource = CGImageSourceCreateWithData(cfdata, NULL);   
    
  if (imageSource == nil)
  {
    CLog::Log(LOGERROR, "Texture manager unable to load file: %s", CSpecialProtocol::TranslatePath(texturePath).c_str());
    CFRelease(cfdata);
    delete [] imageBuff;
    return false;
  }

  CGImageRef image = CGImageSourceCreateImageAtIndex(imageSource, 0, NULL);

  int rotate = 0;
  if (autoRotate)
  { // get the orientation of the image for displaying it correctly
    CFDictionaryRef imagePropertiesDictionary = CGImageSourceCopyPropertiesAtIndex(imageSource,0, NULL);
    if (imagePropertiesDictionary != nil)
    {
      CFNumberRef orientation = (CFNumberRef)CFDictionaryGetValue(imagePropertiesDictionary, kCGImagePropertyOrientation);
      if (orientation != nil)
      {
        int value = 0;
        CFNumberGetValue(orientation, kCFNumberIntType, &value);
        if (value)
          rotate = value - 1;
      }
      CFRelease(imagePropertiesDictionary);
    }
  }

  CFRelease(imageSource);

  unsigned int width  = CGImageGetWidth(image);
  unsigned int height = CGImageGetHeight(image);

  m_hasAlpha = (CGImageGetAlphaInfo(image) != kCGImageAlphaNone);

  if (originalWidth)
    *originalWidth = width;
  if (originalHeight)
    *originalHeight = height;

  // check texture size limits and limit to screen size - preserving aspectratio of image  
  if ( width > g_Windowing.GetMaxTextureSize() || height > g_Windowing.GetMaxTextureSize() )
  {
    float aspect;

    if ( width > height )
    {
      aspect = (float)width / (float)height;
      width  = g_Windowing.GetWidth();
      height = (float)width / (float)aspect;
    }
//.........这里部分代码省略.........

bool CBaseTexture::LoadFromFileInternal(const CStdString& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate)
{
#if defined(HAS_OMXPLAYER)
  if (URIUtils::GetExtension(texturePath).Equals(".jpg") || 
      URIUtils::GetExtension(texturePath).Equals(".tbn") 
      /*|| URIUtils::GetExtension(texturePath).Equals(".png")*/)
  {
    COMXImage omx_image;

    if(omx_image.ReadFile(texturePath))
    {
      // TODO: we only decode as half width and height. this is a workaround for the PI memory limitation
      if(omx_image.Decode(omx_image.GetWidth() / 2, omx_image.GetHeight() / 2))
      {
        Allocate(omx_image.GetDecodedWidth(), omx_image.GetDecodedHeight(), XB_FMT_A8R8G8B8);

        if(!m_pixels)
        {
          CLog::Log(LOGERROR, "Texture manager (OMX) out of memory");
          omx_image.Close();
          return false;
        }

        m_originalWidth  = omx_image.GetOriginalWidth();
        m_originalHeight = omx_image.GetOriginalHeight();

        m_hasAlpha = omx_image.IsAlpha();

        if (autoRotate && omx_image.GetOrientation())
          m_orientation = omx_image.GetOrientation() - 1;

        if(omx_image.GetDecodedData())
        {
          int size = ( ( GetPitch() * GetRows() ) > omx_image.GetDecodedSize() ) ?
                           omx_image.GetDecodedSize() : ( GetPitch() * GetRows() );

          memcpy(m_pixels, (unsigned char *)omx_image.GetDecodedData(), size);
        }

        omx_image.Close();

        return true;
      }
      else
      {
        omx_image.Close();
      }
    }
  }
#endif
  if (URIUtils::GetExtension(texturePath).Equals(".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  //ImageLib is sooo sloow for jpegs. Try our own decoder first. If it fails, fall back to ImageLib.
  if (URIUtils::GetExtension(texturePath).Equals(".jpg") || URIUtils::GetExtension(texturePath).Equals(".tbn"))
  {
    CJpegIO jpegfile;
    if (jpegfile.Open(texturePath, 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))
        {
          if (autoRotate && jpegfile.Orientation())
            m_orientation = jpegfile.Orientation() - 1;
          m_hasAlpha=false;
          ClampToEdge();
          return true;
        }
      }
    }
    CLog::Log(LOGDEBUG, "%s - Load of %s failed. Falling back to ImageLib", __FUNCTION__, texturePath.c_str());
  }

  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();

  if(!dll.LoadImage(texturePath.c_str(), width, height, &image))
  {
    CLog::Log(LOGERROR, "Texture manager unable to load file: %s", texturePath.c_str());
    return false;
  }

  LoadFromImage(image, autoRotate);
//.........这里部分代码省略.........

bool CBaseTexture::LoadFromFile(const CStdString& texturePath, unsigned int maxWidth, unsigned int maxHeight,
                                bool autoRotate, unsigned int *originalWidth, unsigned int *originalHeight)
{
  if (URIUtils::GetExtension(texturePath).Equals(".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  //ImageLib is sooo sloow for jpegs. Try our own decoder first. If it fails, fall back to ImageLib.
  if (URIUtils::GetExtension(texturePath).Equals(".jpg") || URIUtils::GetExtension(texturePath).Equals(".tbn"))
  {
    CJpegIO jpegfile;
    if (jpegfile.Open(texturePath, 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))
        {
          if (autoRotate && jpegfile.Orientation())
            m_orientation = jpegfile.Orientation() - 1;
          m_hasAlpha=false;
          ClampToEdge();
          return true;
        }
      }
    }
    CLog::Log(LOGDEBUG, "%s - Load of %s failed. Falling back to ImageLib", __FUNCTION__, texturePath.c_str());
  }

  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();

  if(!dll.LoadImage(texturePath.c_str(), width, height, &image))
  {
    CLog::Log(LOGERROR, "Texture manager unable to load file: %s", texturePath.c_str());
    return false;
  }

  if (originalWidth)
    *originalWidth = image.originalwidth;
  if (originalHeight)
    *originalHeight = image.originalheight;

  LoadFromImage(image, autoRotate);
  dll.ReleaseImage(&image);

  return true;
}

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);

//.........这里部分代码省略.........