+++ /dev/null
-/* === 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;
-}
projects / synfig.git / blobdiff