--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file trgt_mng.cpp
+** \brief MNG Target Module
+**
+** $Id$
+**
+** \legal
+** Copyright 2007 Paul Wise
+**
+** 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 ===========================================================
+**
+** FIXME: THIS DOES NOT ACTUALLY WORK YET
+**
+** You will need to read the PNG and MNG specs to understand this code
+**
+** ========================================================================= */
+
+/* === 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_mng.h"
+#include <libmng.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(mng_trgt);
+SYNFIG_TARGET_SET_NAME(mng_trgt,"mng");
+SYNFIG_TARGET_SET_EXT(mng_trgt,"mng");
+SYNFIG_TARGET_SET_VERSION(mng_trgt,"0.1");
+SYNFIG_TARGET_SET_CVS_ID(mng_trgt,"$Id$");
+
+/* === M E T H O D S ======================================================= */
+
+static mng_ptr MNG_DECL mng_alloc_proc(mng_size_t size){
+ return (mng_ptr)calloc(1,size);
+}
+
+static void MNG_DECL mng_free_proc(mng_ptr ptr, mng_size_t size)
+{
+ free(ptr); return;
+}
+
+static mng_bool MNG_DECL mng_null_proc(mng_handle mng)
+{
+ synfig::error("mng_trgt: error: mng_null_proc");
+ return MNG_TRUE;
+}
+
+static mng_bool MNG_DECL mng_write_proc(mng_handle mng, mng_ptr buf, mng_uint32 size, mng_uint32* written)
+{
+ synfig::error("mng_trgt: error: mng_write_proc");
+ FILE* file = (FILE*)mng_get_userdata (mng);
+ *written = fwrite(buf, 1, size, file);
+ return MNG_TRUE;
+}
+
+static mng_bool MNG_DECL mng_error_proc(
+ mng_handle mng, mng_int32 error, mng_int8 severity, mng_chunkid chunkname,
+ mng_uint32 chunkseq, mng_int32 extra1, mng_int32 extra2, mng_pchar errortext){
+ mng_trgt* me = (mng_trgt*)mng_get_userdata (mng);
+ fprintf(stderr,"mng_trgt: error: %s",errortext);
+ // me->ready=false;
+ return MNG_TRUE;
+}
+
+mng_trgt::mng_trgt(const char *Filename):
+ filename(Filename)
+{
+ file=NULL;
+ buffer=NULL;
+ color_buffer=NULL;
+ zbuffer=NULL;
+ zbuffer_len=0;
+ ready=false;
+}
+
+mng_trgt::~mng_trgt()
+{
+ synfig::error("mng_trgt: error: ~mng_trgt");
+ if( mng != MNG_NULL){
+ mng_putchunk_mend(mng);
+ if( mng_write(mng) != 0 ){
+ mng_int8 severity;
+ mng_chunkid chunkname;
+ mng_uint32 chunkseq;
+ mng_int32 extra1;
+ mng_int32 extra2;
+ mng_pchar errortext;
+ mng_getlasterror(mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);
+ synfig::error("mng_trgt: error: couldn't write mng: %s",errortext);
+ }
+ mng_cleanup (&mng);
+ }
+ if( file != NULL ) fclose(file); file=NULL;
+ if( buffer != NULL ){ delete [] buffer; buffer = NULL; }
+ if( color_buffer != NULL ){ delete [] color_buffer; color_buffer = NULL; }
+ if( zbuffer != NULL ){ free(zbuffer); zbuffer = NULL; zbuffer_len = 0; }
+}
+
+bool
+mng_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
+mng_trgt::init(){
+ time_t t = time (NULL);
+ struct tm* gmt = gmtime(&t);
+ w=desc.get_w(); h=desc.get_h();
+ //synfig::error("mng_trgt: init %d %d",w,h);
+ file = fopen(filename.c_str(), "wb");
+ if( file == NULL ) goto cleanup_on_error;
+ mng = mng_initialize((mng_ptr)file, mng_alloc_proc, mng_free_proc, MNG_NULL);
+ if(mng == MNG_NULL) goto cleanup_on_error;
+ if( mng_setcb_errorproc(mng, mng_error_proc) != 0 ) goto cleanup_on_error;
+ if( mng_setcb_writedata(mng, mng_write_proc) != 0 ) goto cleanup_on_error;
+ if( mng_setcb_openstream(mng, mng_null_proc) != 0 ) goto cleanup_on_error;
+ if( mng_setcb_closestream(mng, mng_null_proc) != 0 ) goto cleanup_on_error;
+ if( mng_create(mng) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_mhdr(mng, w, h, multi_image?1000:0, 1, desc.get_frame_end()-desc.get_frame_start(), 0, 0) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_term(mng, MNG_TERMACTION_REPEAT, MNG_ITERACTION_LASTFRAME, 0, 0x7fffffff) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_text(mng, sizeof(MNG_TEXT_TITLE), MNG_TEXT_TITLE, get_canvas()->get_name().length(), const_cast<char *>(get_canvas()->get_name().c_str()) ) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_text(mng, sizeof(MNG_TEXT_DESCRIPTION), MNG_TEXT_DESCRIPTION, get_canvas()->get_description().length(), const_cast<char *>(get_canvas()->get_description().c_str()) ) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_text(mng, sizeof(MNG_TEXT_SOFTWARE), MNG_TEXT_SOFTWARE, sizeof("SYNFIG"), "SYNFIG" ) != 0 ) goto cleanup_on_error;
+ /* FIXME: not sure if this is correct */
+ if( mng_putchunk_gama(mng, MNG_FALSE, (int)(1.0/gamma().get_gamma()*100000)) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_phyg(mng, MNG_FALSE,round_to_int(desc.get_x_res()),round_to_int(desc.get_y_res()),MNG_UNIT_METER) != 0 ) goto cleanup_on_error;
+ if( mng_putchunk_time(mng, gmt->tm_year + 1900, gmt->tm_mon + 1, gmt->tm_mday, gmt->tm_hour, gmt->tm_min, gmt->tm_sec) != 0 ) goto cleanup_on_error;
+ buffer=new unsigned char[4*w];
+ if( buffer == NULL ) goto cleanup_on_error;
+ color_buffer=new Color[w];
+ if( color_buffer == NULL ) goto cleanup_on_error;
+ return true;
+
+cleanup_on_error:
+ ready=false;
+ if( mng != MNG_NULL){
+ mng_int8 severity;
+ mng_chunkid chunkname;
+ mng_uint32 chunkseq;
+ mng_int32 extra1;
+ mng_int32 extra2;
+ mng_pchar errortext;
+ mng_getlasterror (mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);
+ synfig::error("mng_trgt: libmng: %s",errortext);
+ mng_cleanup (&mng);
+ }
+ if( file && file!=stdout ) fclose(file); file=NULL;
+ if( buffer != NULL ){ delete [] buffer; buffer = NULL; }
+ if( color_buffer != NULL ){ delete [] color_buffer; color_buffer = NULL; }
+ return false;
+}
+
+void
+mng_trgt::end_frame()
+{
+ //synfig::error("mng_trgt: endf %d %d",w,h);
+ //synfig::error("mng_trgt: error: endframe");
+ deflate(&zstream,Z_FINISH);
+ deflateEnd(&zstream);
+ if( mng != MNG_NULL ){
+ mng_int8 severity;
+ mng_chunkid chunkname;
+ mng_uint32 chunkseq;
+ mng_int32 extra1;
+ mng_int32 extra2;
+ mng_pchar errortext;
+ mng_putchunk_idat(mng, zbuffer_len, zbuffer);
+ //mng_getlasterror (mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);
+ //synfig::error("mng_trgt: libmng: %s %d",errortext,zbuffer_len);
+ mng_putchunk_iend(mng);
+ //mng_getlasterror (mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);
+ //synfig::error("mng_trgt: libmng: %s %d",errortext);
+ }
+ imagecount++;
+ ready=false;
+}
+
+bool
+mng_trgt::start_frame(synfig::ProgressCallback *callback)
+{
+ //synfig::error("mng_trgt: startf %d %d",w,h);
+ //synfig::error("mng_trgt: error: startframe");
+ /*
+ FIXME: figure out if we need this
+ mng_putchunk_fram(mng,
+ MNG_FALSE,
+ MNG_FRAMINGMODE_NOCHANGE,
+ 0,
+ NULL,
+ MNG_CHANGEDELAY_NO,
+ MNG_CHANGETIMOUT_NO,
+ MNG_CHANGECLIPPING_NO,
+ MNG_CHANGESYNCID_NO,
+ 0,
+ 0,
+ 0,
+ layer_offset_x,
+ layer_offset_x + layer_cols,
+ layer_offset_y,
+ layer_offset_y + layer_rows,
+ 0,
+ 0)
+ mng_getchunk_fram(mng_handle hHandle,
+ mng_handle hChunk,
+ mng_bool *bEmpty,
+ mng_uint8 *iMode,
+ mng_uint32 *iNamesize,
+ mng_pchar *zName,
+ mng_uint8 *iChangedelay,
+ mng_uint8 *iChangetimeout,
+ mng_uint8 *iChangeclipping,
+ mng_uint8 *iChangesyncid,
+ mng_uint32 *iDelay,
+ mng_uint32 *iTimeout,
+ mng_uint8 *iBoundarytype,
+ mng_int32 *iBoundaryl,
+ mng_int32 *iBoundaryr,
+ mng_int32 *iBoundaryt,
+ mng_int32 *iBoundaryb,
+ mng_uint32 *iCount,
+ mng_uint32p *pSyncids);
+ */
+ if( mng == MNG_NULL ) return false;
+ if( mng_putchunk_defi(mng,0,MNG_DONOTSHOW_VISIBLE,MNG_ABSTRACT,MNG_FALSE,0,0,MNG_FALSE,0,0,0,0) != 0) return false;
+ if( mng_putchunk_ihdr(mng,w,h,MNG_BITDEPTH_8,MNG_COLORTYPE_RGBA,MNG_COMPRESSION_DEFLATE, 0/*MNG_FILTER_NO_DIFFERING*/,MNG_INTERLACE_NONE) != 0) return false;
+ zstream.zalloc = Z_NULL;
+ zstream.zfree = Z_NULL;
+ zstream.opaque = Z_NULL;
+ zstream.data_type = Z_BINARY;
+ if( deflateInit(&zstream, Z_DEFAULT_COMPRESSION) != Z_OK ) return false;
+ //zbuffer_len = deflateBound(&zstream,4*w*h);
+ if(zbuffer == NULL){
+ zbuffer_len = 4*w*h;
+ zbuffer = (unsigned char*)realloc(zbuffer, zbuffer_len);
+ zstream.next_out = zbuffer;
+ zstream.avail_out = zbuffer_len;
+ }
+ ready=true;
+ return true;
+}
+
+Color *
+mng_trgt::start_scanline(int scanline)
+{
+ //synfig::error("mng_trgt: starts %d %d",w,h);
+ //synfig::error("mng_trgt: error: startscanline");
+ return color_buffer;
+}
+
+bool
+mng_trgt::end_scanline()
+{
+ //synfig::error("mng_trgt: ends %d %d",w,h);
+ //synfig::error("mng_trgt: error: endscanline");
+ if(!file || !ready)
+ return false;
+ convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB|PF_A, gamma());
+ /* FIXME: Implement buffer management */
+ zstream.next_in = buffer;
+ zstream.avail_in = 4*w;
+ deflate(&zstream,Z_NO_FLUSH);
+ return true;
+}
--- /dev/null
+/*! ========================================================================
+** Synfig
+**
+** Copyright (c) 2007 Paul Wise
+**
+** 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.
+**
+** === N O T E S ===========================================================
+**
+** FIXME: THIS DOES NOT ACTUALLY WORK YET
+**
+** ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_TRGT_MNG_H
+#define __SYNFIG_TRGT_MNG_H
+
+/* === H E A D E R S ======================================================= */
+
+#include <synfig/target_scanline.h>
+#include <synfig/string.h>
+#include <cstdio>
+
+#include <png.h>
+#include <jpeglib.h>
+
+#if !defined(MNG_SUPPORT_FULL)
+#define MNG_SUPPORT_FULL 1
+#endif
+
+#if !defined(MNG_SUPPORT_READ)
+#define MNG_SUPPORT_READ 1
+#endif
+
+#if !defined(MNG_SUPPORT_WRITE)
+#define MNG_SUPPORT_WRITE 1
+#endif
+
+#if !defined(MNG_SUPPORT_DISPLAY)
+#define MNG_SUPPORT_DISPLAY 1
+#endif
+
+#if !defined(MNG_ACCESS_CHUNKS)
+#define MNG_ACCESS_CHUNKS 1
+#endif
+
+#include <libmng.h>
+
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+class mng_trgt : public synfig::Target_Scanline
+{
+ SYNFIG_TARGET_MODULE_EXT
+
+private:
+
+ FILE *file;
+ int w,h;
+ mng_handle mng;
+
+ bool multi_image,ready;
+ int imagecount;
+ synfig::String filename;
+ unsigned char *buffer;
+ synfig::Color *color_buffer;
+
+ z_stream zstream;
+ unsigned char* zbuffer;
+ unsigned int zbuffer_len;
+
+public:
+
+ mng_trgt(const char *filename);
+ virtual ~mng_trgt();
+
+ virtual bool set_rend_desc(synfig::RendDesc *desc);
+ virtual bool init();
+ virtual bool start_frame(synfig::ProgressCallback *cb);
+ virtual void end_frame();
+
+ virtual synfig::Color * start_scanline(int scanline);
+ virtual bool end_scanline();
+};
+
+/* === E N D =============================================================== */
+
+#endif
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