Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / src / modules / mod_jpeg / trgt_jpeg.cpp

diff --git a/synfig-core/src/modules/mod_jpeg/trgt_jpeg.cpp b/synfig-core/src/modules/mod_jpeg/trgt_jpeg.cpp
new file mode 100644 (file)
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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;
+}