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C++ CxImageJPG::Decode方法代码示例

本文整理汇总了C++中CxImageJPG::Decode方法的典型用法代码示例。如果您正苦于以下问题：C++ CxImageJPG::Decode方法的具体用法？C++ CxImageJPG::Decode怎么用？C++ CxImageJPG::Decode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CxImageJPG的用法示例。


在下文中一共展示了CxImageJPG::Decode方法的3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: Decode

bool CxImage::Decode(CxFile *hFile, DWORD imagetype)
#endif
{
	if (hFile == NULL){
		strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
		return false;
	}

	if (imagetype==CXIMAGE_FORMAT_UNKNOWN){
		DWORD pos = hFile->Tell();
#if CXIMAGE_SUPPORT_JPG
#ifdef XBMC
		{ CxImageJPG newima; try { newima.CopyInfo(*this); if (newima.Decode(hFile, iWidth, iHeight)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } catch (...) { hFile->Seek(pos,SEEK_SET); } }
#else
		{ CxImageJPG newima; try { newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } catch (...) { hFile->Seek(pos,SEEK_SET); } }
#endif
#endif
#if CXIMAGE_SUPPORT_PNG
		{ CxImagePNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_GIF
		{ CxImageGIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_BMP
		{ CxImageBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_ICO
		{ CxImageICO newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_TIF
		{ CxImageTIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_MNG
		{ CxImageMNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_TGA
		{ CxImageTGA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_PCX
		{ CxImagePCX newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_WBMP
		{ CxImageWBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
		{ CxImageWMF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_JBG
		{ CxImageJBG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_JASPER
		{ CxImageJAS newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_SKA
		{ CxImageSKA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_RAW
		{ CxImageRAW newima;
          newima.CopyInfo(*this);

          // libDCR performs a high volume of seeks/reads which XBMC's
          // VFS cannot sustain efficiently, therefore read the file into
          // memory and send it to the decoder.

          long buffer_size = hFile->Size();
          if (buffer_size < 0)
            return false;
          unsigned char* buffer = (unsigned char*)malloc( buffer_size );

          // if we were able to allocate the buffer, transfer to a CxMemFile
          if ( buffer )
          {
            hFile->Read( buffer, buffer_size, 1 );
            CxMemFile hMemFile( buffer, buffer_size );
            if (newima.Decode( &hMemFile ))
            {
              Transfer(newima);
              return true;
            }
            else
              hFile->Seek(pos, SEEK_SET);
          }
          else
          {
            // fallback to default method
            if (newima.Decode(hFile)) 
            {
              Transfer(newima);
              return true;
            } 
            else 
              hFile->Seek(pos,SEEK_SET); 
          }
        }
#endif
	}

#if CXIMAGE_SUPPORT_BMP
	if (imagetype==CXIMAGE_FORMAT_BMP){
		CxImageBMP newima;
//.........这里部分代码省略.........
开发者ID:sd-eblana，项目名称:bawx，代码行数:101，代码来源:ximaenc.cpp

示例2: Decode

/**
 * Loads an image from CxFile object
 * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
 * \return true if everything is ok
 * \sa ENUM_CXIMAGE_FORMATS
 */
bool CxImage::Decode(CxFile *hFile, uint32_t imagetype)
{
	if (hFile == NULL){
		strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
		return false;
	}

	uint32_t pos = hFile->Tell();

#if CXIMAGE_SUPPORT_BMP
	if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_BMP==imagetype){
		CxImageBMP *newima = new CxImageBMP;
		if (!newima)
			return false;
		newima->CopyInfo(*this);
		if (newima->Decode(hFile)) {
			Transfer(*newima);
			delete newima;
			return true;
		} else {
			strcpy(info.szLastError,newima->GetLastError());
			hFile->Seek(pos,SEEK_SET);
			delete newima;
			if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
				return false;
		}
	}
#endif
#if CXIMAGE_SUPPORT_JPG
	if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_JPG==imagetype){
		CxImageJPG *newima = new CxImageJPG;
		if (!newima)
			return false;
		newima->CopyInfo(*this);
		if (newima->Decode(hFile)) {
			Transfer(*newima);
			delete newima;
			return true;
		} else {
			strcpy(info.szLastError,newima->GetLastError());
			hFile->Seek(pos,SEEK_SET);
			delete newima;
			if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
				return false;
		}
	}
#endif
#if CXIMAGE_SUPPORT_ICO
	if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_ICO==imagetype){
		CxImageICO *newima = new CxImageICO;
		if (!newima)
			return false;
		newima->CopyInfo(*this);
		if (newima->Decode(hFile)) {
			Transfer(*newima);
			delete newima;
			return true;
		} else {
			info.nNumFrames = newima->info.nNumFrames;
			strcpy(info.szLastError,newima->GetLastError());
			hFile->Seek(pos,SEEK_SET);
			delete newima;
			if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
				return false;
		}
	}
#endif
#if CXIMAGE_SUPPORT_GIF
	if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_GIF==imagetype){
		CxImageGIF *newima = new CxImageGIF;
		if (!newima)
			return false;
		newima->CopyInfo(*this);
		if (newima->Decode(hFile)) {
			Transfer(*newima);
			delete newima;
			return true;
		} else {
			info.nNumFrames = newima->info.nNumFrames;
			strcpy(info.szLastError,newima->GetLastError());
			hFile->Seek(pos,SEEK_SET);
			delete newima;
			if (CXIMAGE_FORMAT_UNKNOWN!=imagetype)
				return false;
		}
	}
#endif
#if CXIMAGE_SUPPORT_PNG
	if (CXIMAGE_FORMAT_UNKNOWN==imagetype || CXIMAGE_FORMAT_PNG==imagetype){
		CxImagePNG *newima = new CxImagePNG;
		if (!newima)
			return false;
		newima->CopyInfo(*this);
//.........这里部分代码省略.........
开发者ID:Valloric，项目名称:hge-multi，代码行数:101，代码来源:ximaenc.cpp

示例3: Decode

/**
 * Loads an image from CxFile object
 * \param hFile: file handle (CxMemFile or CxIOFile), with read access.
 * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS
 * \return true if everything is ok
 * \sa ENUM_CXIMAGE_FORMATS
 */
bool CxImage::Decode(CxFile *hFile, DWORD imagetype)
{
	if (hFile == NULL){
		strcpy(info.szLastError,CXIMAGE_ERR_NOFILE);
		return false;
	}

	if (imagetype==CXIMAGE_FORMAT_UNKNOWN){
		DWORD pos = hFile->Tell();
#if CXIMAGE_SUPPORT_BMP
		{ CxImageBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_PNG
        { CxImagePNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_JPG
		{ CxImageJPG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_MNG
        { CxImageMNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_TGA
        { CxImageTGA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_ICO
		{ CxImageICO newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_GIF
		{ CxImageGIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_TIF
		{ CxImageTIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_PCX
		{ CxImagePCX newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_WBMP
		{ CxImageWBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS
		{ CxImageWMF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_JBG
		{ CxImageJBG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_JASPER
		{ CxImageJAS newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_SKA
		{ CxImageSKA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
#if CXIMAGE_SUPPORT_RAW
		{ CxImageRAW newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); }
#endif
	}

#if CXIMAGE_SUPPORT_BMP
	if (imagetype==CXIMAGE_FORMAT_BMP){
		CxImageBMP newima;
		newima.CopyInfo(*this);
		if (newima.Decode(hFile)){
			Transfer(newima);
			return true;
		} else {
			strcpy(info.szLastError,newima.GetLastError());
			return false;
		}
	}
#endif
#if CXIMAGE_SUPPORT_PNG
    if (imagetype==CXIMAGE_FORMAT_PNG){
        CxImagePNG newima;
        newima.CopyInfo(*this);
        if (newima.Decode(hFile)){
            Transfer(newima);
            return true;
        } else {
            strcpy(info.szLastError,newima.GetLastError());
            return false;
        }
    }
#endif
#if CXIMAGE_SUPPORT_JPG
	if (imagetype==CXIMAGE_FORMAT_JPG){
		CxImageJPG newima;
		newima.CopyInfo(*this); // <ignacio>
		if (newima.Decode(hFile)){
			Transfer(newima);
			return true;
		} else {
			strcpy(info.szLastError,newima.GetLastError());
			return false;
		}
//.........这里部分代码省略.........
开发者ID:Emiyasviel，项目名称:Arianrhod，代码行数:101，代码来源:ximaenc.cpp


注：本文中的CxImageJPG::Decode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。