X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Fsrc%2Fmodules%2Fmod_jpeg%2Ftrgt_jpeg.cpp;fp=synfig-core%2Fsrc%2Fmodules%2Fmod_jpeg%2Ftrgt_jpeg.cpp;h=3ff854dcbb6825dbcc3f89e28192d25affb2b97a;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/src/modules/mod_jpeg/trgt_jpeg.cpp b/synfig-core/src/modules/mod_jpeg/trgt_jpeg.cpp
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+++ b/synfig-core/src/modules/mod_jpeg/trgt_jpeg.cpp
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+/* === S Y N F I G ========================================================= */
+/*!	\file trgt_jpeg.cpp
+**	\brief jpeg_trgt Target Module
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**	Copyright (c) 2007 Chris Moore
+**
+**	This package is free software; you can redistribute it and/or
+**	modify it under the terms of the GNU General Public License as
+**	published by the Free Software Foundation; either version 2 of
+**	the License, or (at your option) any later version.
+**
+**	This package is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**	General Public License for more details.
+**	\endlegal
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#define SYNFIG_TARGET
+
+#ifdef USING_PCH
+#	include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#	include <config.h>
+#endif
+
+#include "trgt_jpeg.h"
+#include <jpeglib.h>
+#include <ETL/stringf>
+#include <cstdio>
+#include <algorithm>
+#include <functional>
+#endif
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_TARGET_INIT(jpeg_trgt);
+SYNFIG_TARGET_SET_NAME(jpeg_trgt,"jpeg");
+SYNFIG_TARGET_SET_EXT(jpeg_trgt,"jpg");
+SYNFIG_TARGET_SET_VERSION(jpeg_trgt,"0.1");
+SYNFIG_TARGET_SET_CVS_ID(jpeg_trgt,"$Id$");
+
+/* === M E T H O D S ======================================================= */
+
+jpeg_trgt::jpeg_trgt(const char *Filename)
+{
+	file=NULL;
+	filename=Filename;
+	buffer=NULL;
+	ready=false;
+	quality=95;
+	color_buffer=0;
+	set_remove_alpha();
+}
+
+jpeg_trgt::~jpeg_trgt()
+{
+	if(ready)
+	{
+		jpeg_finish_compress(&cinfo);
+		jpeg_destroy_compress(&cinfo);
+		ready=false;
+	}
+	if(file)
+		fclose(file);
+	file=NULL;
+	delete [] buffer;
+	delete [] color_buffer;
+}
+
+bool
+jpeg_trgt::set_rend_desc(RendDesc *given_desc)
+{
+	desc=*given_desc;
+	imagecount=desc.get_frame_start();
+	if(desc.get_frame_end()-desc.get_frame_start()>0)
+		multi_image=true;
+	else
+		multi_image=false;
+	return true;
+}
+
+bool
+jpeg_trgt::start_frame(synfig::ProgressCallback *callback)
+{
+	int w=desc.get_w(),h=desc.get_h();
+
+	if(file && file!=stdout)
+		fclose(file);
+	if(filename=="-")
+	{
+		if(callback)callback->task(strprintf("(stdout) %d",imagecount).c_str());
+		file=stdout;
+	}
+	else if(multi_image)
+	{
+		String newfilename(filename_sans_extension(filename) +
+						   etl::strprintf(".%04d",imagecount) +
+						   filename_extension(filename));
+		file=fopen(newfilename.c_str(),POPEN_BINARY_WRITE_TYPE);
+		if(callback)callback->task(newfilename);
+	}
+	else
+	{
+		file=fopen(filename.c_str(),POPEN_BINARY_WRITE_TYPE);
+		if(callback)callback->task(filename);
+	}
+
+	if(!file)
+		return false;
+
+	delete [] buffer;
+	buffer=new unsigned char[3*w];
+
+	delete [] color_buffer;
+	color_buffer=new Color[w];
+
+
+	cinfo.err = jpeg_std_error(&jerr);
+	jpeg_create_compress(&cinfo);
+	jpeg_stdio_dest(&cinfo, file);
+
+	cinfo.image_width = w; 	/* image width and height, in pixels */
+	cinfo.image_height = h;
+	cinfo.input_components = 3;		/* # of color components per pixel */
+	cinfo.in_color_space = JCS_RGB; 	/* colorspace of input image */
+	/* Now use the library's routine to set default compression parameters.
+	* (You must set at least cinfo.in_color_space before calling this,
+	* since the defaults depend on the source color space.)
+	*/
+	jpeg_set_defaults(&cinfo);
+	/* Now you can set any non-default parameters you wish to.
+	* Here we just illustrate the use of quality (quantization table) scaling:
+	*/
+	jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */);
+
+	/* Step 4: Start compressor */
+
+	/* TRUE ensures that we will write a complete interchange-JPEG file.
+	* Pass TRUE unless you are very sure of what you're doing.
+	*/
+	jpeg_start_compress(&cinfo, TRUE);
+
+	ready=true;
+	return true;
+}
+
+void
+jpeg_trgt::end_frame()
+{
+	if(ready)
+	{
+		jpeg_finish_compress(&cinfo);
+		jpeg_destroy_compress(&cinfo);
+		ready=false;
+	}
+
+	if(file && file!=stdout)
+		fclose(file);
+	file=NULL;
+	imagecount++;
+}
+
+Color *
+jpeg_trgt::start_scanline(int /*scanline*/)
+{
+	return color_buffer;
+}
+
+bool
+jpeg_trgt::end_scanline()
+{
+	if(!file || !ready)
+		return false;
+
+	convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB,gamma());
+	JSAMPROW *row_pointer(&buffer);
+	jpeg_write_scanlines(&cinfo, row_pointer, 1);
+
+	return true;
+}