+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file trgt_png.cpp
-** \brief png_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_png.h"
-#include <png.h>
-#include <ETL/stringf>
-#include <cstdio>
-#include <algorithm>
-#include <functional>
-#include <ETL/misc>
-
-#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(png_trgt);
-SYNFIG_TARGET_SET_NAME(png_trgt,"png");
-SYNFIG_TARGET_SET_EXT(png_trgt,"png");
-SYNFIG_TARGET_SET_VERSION(png_trgt,"0.1");
-SYNFIG_TARGET_SET_CVS_ID(png_trgt,"$Id$");
-
-/* === M E T H O D S ======================================================= */
-
-void
-png_trgt::png_out_error(png_struct *png_data,const char *msg)
-{
- png_trgt *me=(png_trgt*)png_data->error_ptr;
- synfig::error(strprintf("png_trgt: error: %s",msg));
- me->ready=false;
-}
-
-void
-png_trgt::png_out_warning(png_struct *png_data,const char *msg)
-{
- png_trgt *me=(png_trgt*)png_data->error_ptr;
- synfig::warning(strprintf("png_trgt: warning: %s",msg));
- me->ready=false;
-}
-
-
-//Target *png_trgt::New(const char *filename){ return new png_trgt(filename);}
-
-png_trgt::png_trgt(const char *Filename)
-{
- file=NULL;
- filename=Filename;
- buffer=NULL;
- ready=false;
- color_buffer=0;
-}
-
-png_trgt::~png_trgt()
-{
- if(file)
- fclose(file);
- file=NULL;
- delete [] buffer;
- delete [] color_buffer;
-}
-
-bool
-png_trgt::set_rend_desc(RendDesc *given_desc)
-{
- //given_desc->set_pixel_format(PixelFormat((int)PF_RGB|(int)PF_A));
- 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;
-}
-
-void
-png_trgt::end_frame()
-{
- if(ready && file)
- {
- png_write_end(png_ptr,info_ptr);
- png_destroy_write_struct(&png_ptr, &info_ptr);
- }
-
- if(file && file!=stdout)
- fclose(file);
- file=NULL;
- imagecount++;
- ready=false;
-}
-
-bool
-png_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),
- ext(find(filename.begin(),filename.end(),'.'),filename.end());
- newfilename.erase(find(newfilename.begin(),newfilename.end(),'.'),newfilename.end());
-
- newfilename+=etl::strprintf("%04d",imagecount)+ext;
- file=fopen(newfilename.c_str(),"wb");
- if(callback)callback->task(newfilename);
- }
- else
- {
- file=fopen(filename.c_str(),"wb");
- if(callback)callback->task(filename);
- }
-
- if(!file)
- return false;
-
- delete [] buffer;
- buffer=new unsigned char[4*w];
-
- delete [] color_buffer;
- color_buffer=new Color[w];
-
- png_ptr=png_create_write_struct(PNG_LIBPNG_VER_STRING, (png_voidp)this,png_out_error, png_out_warning);
- if (!png_ptr)
- {
- synfig::error("Unable to setup PNG struct");
- fclose(file);
- return false;
- }
-
- info_ptr= png_create_info_struct(png_ptr);
- if (!info_ptr)
- {
- synfig::error("Unable to setup PNG info struct");
- fclose(file);
- png_destroy_write_struct(&png_ptr,(png_infopp)NULL);
- return false;
- }
-
- if (setjmp(png_jmpbuf(png_ptr)))
- {
- synfig::error("Unable to setup longjump");
- png_destroy_write_struct(&png_ptr, &info_ptr);
- fclose(file);
- return false;
- }
- png_init_io(png_ptr,file);
- png_set_filter(png_ptr,0,PNG_FILTER_NONE);
-
- setjmp(png_jmpbuf(png_ptr));
- png_set_IHDR(png_ptr,info_ptr,w,h,8,PNG_COLOR_TYPE_RGBA,PNG_INTERLACE_NONE,PNG_COMPRESSION_TYPE_DEFAULT,PNG_FILTER_TYPE_DEFAULT);
-
- // Write the gamma
- //png_set_gAMA(png_ptr, info_ptr,1.0/gamma().get_gamma());
- png_set_gAMA(png_ptr, info_ptr,gamma().get_gamma());
-
- // Write the physical size
- png_set_pHYs(png_ptr,info_ptr,round_to_int(desc.get_x_res()),round_to_int(desc.get_y_res()),PNG_RESOLUTION_METER);
-
- // Output any text info along with the file
- png_text comments[]=
- {
- { PNG_TEXT_COMPRESSION_NONE, "Title", const_cast<char *>(get_canvas()->get_name().c_str()),
- strlen(get_canvas()->get_name().c_str()) },
- { PNG_TEXT_COMPRESSION_NONE, "Description", const_cast<char *>(get_canvas()->get_description().c_str()),
- strlen(get_canvas()->get_description().c_str()) },
-// { PNG_TEXT_COMPRESSION_NONE, "Copyright", "(c) 2004 Voria Studios, LLC",
-// strlen("(c) 2004 Voria Studios, LLC") },
- { PNG_TEXT_COMPRESSION_NONE, "Software", "SYNFIG",
- strlen("SYNFIG") },
- };
- png_set_text(png_ptr,info_ptr,comments,sizeof(comments)/sizeof(png_text));
-
- png_write_info_before_PLTE(png_ptr, info_ptr);
- png_write_info(png_ptr, info_ptr);
- ready=true;
- return true;
-}
-
-Color *
-png_trgt::start_scanline(int /*scanline*/)
-{
- return color_buffer;
-}
-
-bool
-png_trgt::end_scanline()
-{
- if(!file || !ready)
- return false;
-
- convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB|PF_A, gamma());
-
- setjmp(png_jmpbuf(png_ptr));
- png_write_row(png_ptr,buffer);
-
- return true;
-}
projects / synfig.git / blobdiff