Diff: jpeg.cxx - jpeg.cxx

	jpeg.cxx	jpeg.cxx

	skipping to change at line 415	skipping to change at line 415
	if (setjmp(err.buf))	if (setjmp(err.buf))
	vigra_fail( "error in jpeg_set_quality()" );	vigra_fail( "error in jpeg_set_quality()" );
	jpeg_set_quality( &info, quality, TRUE );	jpeg_set_quality( &info, quality, TRUE );
	}	}

	// enhance the quality a little bit	// enhance the quality a little bit
	for ( unsigned int i = 0; i < MAX_COMPONENTS; ++i ) {	for ( unsigned int i = 0; i < MAX_COMPONENTS; ++i ) {
	info.comp_info[i].h_samp_factor = 1;	info.comp_info[i].h_samp_factor = 1;
	info.comp_info[i].v_samp_factor = 1;	info.comp_info[i].v_samp_factor = 1;
	}	}

	#ifdef C_ARITH_CODING_SUPPORTED
	info.arith_code = TRUE;
	#endif
	#ifdef ENTROPY_OPT_SUPPORTED	#ifdef ENTROPY_OPT_SUPPORTED
	info.optimize_coding = TRUE;	info.optimize_coding = TRUE;
	#endif	#endif
	info.dct_method = JDCT_FLOAT;	info.dct_method = JDCT_FLOAT;

	// start the compression	// start the compression
	if (setjmp(err.buf))	if (setjmp(err.buf))
	vigra_fail( "error in jpeg_start_compress()" );	vigra_fail( "error in jpeg_start_compress()" );
	jpeg_start_compress( &info, TRUE );	jpeg_start_compress( &info, TRUE );


	skipping to change at line 471	skipping to change at line 468
	{	{
	VIGRA_IMPEX_FINALIZED(pimpl->finalized);	VIGRA_IMPEX_FINALIZED(pimpl->finalized);
	pimpl->components = bands;	pimpl->components = bands;
	}	}

	void JPEGEncoder::setCompressionType( const std::string & comp,	void JPEGEncoder::setCompressionType( const std::string & comp,
	int quality )	int quality )
	{	{
	VIGRA_IMPEX_FINALIZED(pimpl->finalized);	VIGRA_IMPEX_FINALIZED(pimpl->finalized);
	if ( comp == "LOSSLESS" )	if ( comp == "LOSSLESS" )

	vigra_fail( "lossless encoding is not supported by"	vigra_fail( "lossless encoding is not supported by your jpeg li
	" the jpeg implementation impex uses." );	brary." );
		if ( comp == "JPEG_ARITH" )
		#ifdef C_ARITH_CODING_SUPPORTED
		pimpl->info.arith_code = TRUE;
		#else
		vigra_fail( "arithmetic encoding is not supported by your jpeg
		library." );
		#endif
	pimpl->quality = quality;	pimpl->quality = quality;
	}	}

	void JPEGEncoder::setPixelType( const std::string & pixelType )	void JPEGEncoder::setPixelType( const std::string & pixelType )
	{	{
	VIGRA_IMPEX_FINALIZED(pimpl->finalized);	VIGRA_IMPEX_FINALIZED(pimpl->finalized);
	if ( pixelType != "UINT8" )	if ( pixelType != "UINT8" )
	vigra_precondition( false, "only UINT8 pixels are supported." ) ;	vigra_precondition( false, "only UINT8 pixels are supported." ) ;
	}	}


End of changes. 2 change blocks.
	5 lines changed or deleted	9 lines changed or added
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