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C++ DllImageLib::ReleaseImage方法代码示例

本文整理汇总了C++中DllImageLib::ReleaseImage方法的典型用法代码示例。如果您正苦于以下问题：C++ DllImageLib::ReleaseImage方法的具体用法？C++ DllImageLib::ReleaseImage怎么用？C++ DllImageLib::ReleaseImage使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DllImageLib的用法示例。


在下文中一共展示了DllImageLib::ReleaseImage方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: LoadFromFileInMem

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;
}
开发者ID:vod777，项目名称:xbmc，代码行数:48，代码来源:Texture.cpp

示例2: LoadFromFile


//.........这里部分代码省略.........
  CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

  // hw convert jmpeg to RGBA
  CGContextRef context = CGBitmapContextCreate(m_pixels,
    width, height, 8, GetPitch(), colorSpace,
    kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);

  CGColorSpaceRelease(colorSpace);

  // Flip so that it isn't upside-down
  //CGContextTranslateCTM(context, 0, height);
  //CGContextScaleCTM(context, 1.0f, -1.0f);
  #if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
    CGContextClearRect(context, CGRectMake(0, 0, width, height));
  #else
    #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
    // (just a way of checking whether we're running in 10.5 or later)
    if (CGContextDrawLinearGradient == 0)
      CGContextClearRect(context, CGRectMake(0, 0, width, height));
    else
    #endif
      CGContextSetBlendMode(context, kCGBlendModeCopy);
  #endif
  //CGContextSetBlendMode(context, kCGBlendModeCopy);
  CGContextDrawImage(context, CGRectMake(0, 0, width, height), image);
  CGContextRelease(context);
  CGImageRelease(image);
  CFRelease(cfdata);
  delete [] imageBuff;
#else
  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;
  }

  m_hasAlpha = NULL != image.alpha;

  Allocate(image.width, image.height, XB_FMT_A8R8G8B8);
  if (autoRotate && image.exifInfo.Orientation)
    m_orientation = image.exifInfo.Orientation - 1;
  if (originalWidth)
    *originalWidth = image.originalwidth;
  if (originalHeight)
    *originalHeight = image.originalheight;

  unsigned int dstPitch = GetPitch();
  unsigned int srcPitch = ((image.width + 1)* 3 / 4) * 4; // bitmap row length is aligned to 4 bytes

  unsigned char *dst = m_pixels;
  unsigned char *src = image.texture + (m_imageHeight - 1) * srcPitch;

  for (unsigned int y = 0; y < m_imageHeight; y++)
  {
    unsigned char *dst2 = dst;
    unsigned char *src2 = src;
    for (unsigned int x = 0; x < m_imageWidth; x++, dst2 += 4, src2 += 3)
    {
      dst2[0] = src2[0];
      dst2[1] = src2[1];
      dst2[2] = src2[2];
      dst2[3] = 0xff;
    }
    src -= srcPitch;
    dst += dstPitch;
  }

  if(image.alpha)
  {
    dst = m_pixels + 3;
    src = image.alpha + (m_imageHeight - 1) * m_imageWidth;

    for (unsigned int y = 0; y < m_imageHeight; y++)
    {
      unsigned char *dst2 = dst;
      unsigned char *src2 = src;

      for (unsigned int x = 0; x < m_imageWidth; x++,  dst2+=4, src2++)
        *dst2 = *src2;
      src -= m_imageWidth;
      dst += dstPitch;
    }
  }
  dll.ReleaseImage(&image);
#endif

  ClampToEdge();

  return true;
}
开发者ID:AWilco，项目名称:xbmc，代码行数:101，代码来源:Texture.cpp

示例3: LoadFromFile

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;
        }
      }
    }
  }

  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;
  }

  m_hasAlpha = NULL != image.alpha;

  Allocate(image.width, image.height, XB_FMT_A8R8G8B8);
  if (autoRotate && image.exifInfo.Orientation)
    m_orientation = image.exifInfo.Orientation - 1;
  if (originalWidth)
    *originalWidth = image.originalwidth;
  if (originalHeight)
    *originalHeight = image.originalheight;

  unsigned int dstPitch = GetPitch();
  unsigned int srcPitch = ((image.width + 1)* 3 / 4) * 4; // bitmap row length is aligned to 4 bytes

  unsigned char *dst = m_pixels;
  unsigned char *src = image.texture + (m_imageHeight - 1) * srcPitch;

  for (unsigned int y = 0; y < m_imageHeight; y++)
  {
    unsigned char *dst2 = dst;
    unsigned char *src2 = src;
    for (unsigned int x = 0; x < m_imageWidth; x++, dst2 += 4, src2 += 3)
    {
      dst2[0] = src2[0];
      dst2[1] = src2[1];
      dst2[2] = src2[2];
      dst2[3] = 0xff;
    }
    src -= srcPitch;
    dst += dstPitch;
  }

  if(image.alpha)
  {
    dst = m_pixels + 3;
    src = image.alpha + (m_imageHeight - 1) * m_imageWidth;

    for (unsigned int y = 0; y < m_imageHeight; y++)
    {
      unsigned char *dst2 = dst;
      unsigned char *src2 = src;

      for (unsigned int x = 0; x < m_imageWidth; x++,  dst2+=4, src2++)
        *dst2 = *src2;
      src -= m_imageWidth;
      dst += dstPitch;
    }
  }
  dll.ReleaseImage(&image);

//.........这里部分代码省略.........
开发者ID:，项目名称:，代码行数:101，代码来源:

示例4: LoadFromFileInternal


//.........这里部分代码省略.........
      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);
  dll.ReleaseImage(&image);

  return true;
}
开发者ID:vod777，项目名称:xbmc，代码行数:101，代码来源:Texture.cpp

示例5: LoadFromFile

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;
}
开发者ID:midripps，项目名称:xbmc，代码行数:62，代码来源:Texture.cpp

示例6: LoadFromFile

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.........
开发者ID:Kr0nZ，项目名称:boxee，代码行数:101，代码来源:Texture.cpp


注：本文中的DllImageLib::ReleaseImage方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。