X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fsrc%2Fmodules%2Fmod_gif%2Ftrgt_gif.cpp;fp=synfig-core%2Ftrunk%2Fsrc%2Fmodules%2Fmod_gif%2Ftrgt_gif.cpp;h=0000000000000000000000000000000000000000;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=20689955c714b954fddbe2ed01d3e5ca0d9d8bbb;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git

diff --git a/synfig-core/trunk/src/modules/mod_gif/trgt_gif.cpp b/synfig-core/trunk/src/modules/mod_gif/trgt_gif.cpp
deleted file mode 100644
index 2068995..0000000
--- a/synfig-core/trunk/src/modules/mod_gif/trgt_gif.cpp
+++ /dev/null
@@ -1,456 +0,0 @@
-/* === S Y N F I G ========================================================= */
-/*!	\file trgt_gif.cpp
-**	\brief BMP 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 <ETL/stringf>
-#include "trgt_gif.h"
-#include <stdio.h>
-#endif
-
-/* === M A C R O S ========================================================= */
-
-using namespace synfig;
-using namespace std;
-using namespace etl;
-
-#define MAX_FRAME_RATE	(20.0)
-
-/* === G L O B A L S ======================================================= */
-
-SYNFIG_TARGET_INIT(gif);
-SYNFIG_TARGET_SET_NAME(gif,"gif");
-SYNFIG_TARGET_SET_EXT(gif,"gif");
-SYNFIG_TARGET_SET_VERSION(gif,"0.1");
-SYNFIG_TARGET_SET_CVS_ID(gif,"$Id$");
-
-/* === M E T H O D S ======================================================= */
-
-gif::gif(const char *filename_):
-	filename(filename_),
-	file( (filename=="-")?stdout:fopen(filename_,POPEN_BINARY_WRITE_TYPE) ),
-	imagecount(0),
-
-	lossy(true),
-	multi_image(false),
-	dithering(true),
-	color_bits(8),
-	iframe_density(30),
-	loop_count(0x7fff),
-	local_palette(true)
-{
-}
-
-gif::~gif()
-{
-	if(file)
-		fputc(';',file.get());	// Image terminator
-}
-
-bool
-gif::set_rend_desc(RendDesc *given_desc)
-{
-	if(given_desc->get_frame_rate()>MAX_FRAME_RATE)
-		given_desc->set_frame_rate(MAX_FRAME_RATE);
-
-	desc=*given_desc;
-
-	if(desc.get_frame_end()-desc.get_frame_start()>0)
-	{
-		multi_image=true;
-		//set_remove_alpha();
-		imagecount=desc.get_frame_end()-desc.get_frame_start();
-	}
-	else
-		multi_image=false;
-	return true;
-}
-
-bool
-gif::init()
-{
-	int w=desc.get_w(),h=desc.get_h();
-
-	if(!file)
-	{
-		synfig::error(strprintf(_("Unable to open \"%s\" for write access!"),filename.c_str()));
-		return false;
-	}
-
-	rootsize=color_bits;	// Size of pixel bits
-
-	curr_frame.set_wh(w,h);
-	prev_frame.set_wh(w,h);
-	curr_surface.set_wh(w,h);
-	curr_frame.clear();
-	prev_frame.clear();
-	curr_surface.clear();
-
-	if(get_quality()>5)
-		lossy=true;
-	else
-		lossy=false;
-
-	// Output the header
-	fprintf(file.get(),"GIF89a");
-	fputc(w&0x000000ff,file.get());
-	fputc((w&0x0000ff00)>>8,file.get());
-	fputc(h&0x000000ff,file.get());
-	fputc((h&0x0000ff00)>>8,file.get());
-	if(!local_palette)
-		fputc(0xF0+(rootsize-1),file.get());	// flags
-	else
-		fputc((0xF0+(rootsize-1))&~(1<<7),file.get());	// flags
-
-	fputc(0,file.get());		// background color
-	fputc(0,file.get());		// Pixel Aspect Ratio
-
-	if(!local_palette)
-	{
-		curr_palette=Palette::grayscale(256/(1<<(8-rootsize))-1);
-		output_curr_palette();
-	}
-
-	if(loop_count && multi_image)
-	{
-		fputc(33,file.get()); // 33 (hex 0x21) GIF Extension code
-		fputc(255,file.get()); // 255 (hex 0xFF) Application Extension Label
-		fputc(11,file.get()); // 11 (hex (0x0B) Length of Application Block
-		fprintf(file.get(),"NETSCAPE2.0");
-		fputc(3,file.get()); // 3 (hex 0x03) Length of Data Sub-Block
-		fputc(1,file.get()); // 1 (hex 0x01)
-		fputc(loop_count&0x000000ff,file.get());
-		fputc((loop_count&0x0000ff00)>>8,file.get());
-		fputc(0,file.get()); // 0 (hex 0x00) a Data Sub-block Terminator.
-	}
-
-	return true;
-}
-
-void
-gif::output_curr_palette()
-{
-	// Output the color table
-	for(i=0;i<256/(1<<(8-rootsize));i++)
-	{
-		if(i<(signed)curr_palette.size())
-		{
-			Color color(curr_palette[i].color.clamped());
-			//fputc(i*(1<<(8-rootsize)),file.get());
-			//fputc(i*(1<<(8-rootsize)),file.get());
-			//fputc(i*(1<<(8-rootsize)),file.get());
-			fputc(gamma().r_F32_to_U8(color.get_r()),file.get());
-			fputc(gamma().g_F32_to_U8(color.get_g()),file.get());
-			fputc(gamma().b_F32_to_U8(color.get_b()),file.get());
-		}
-		else
-		{
-			fputc(255,file.get());
-			fputc(0,file.get());
-			fputc(255,file.get());
-		}
-	}
-}
-
-bool
-gif::start_frame(synfig::ProgressCallback *callback)
-{
-//	int
-//		w=desc.get_w(),
-//		h=desc.get_h();
-
-	if(!file)
-	{
-		if(callback)callback->error(string("BUG:")+_("Description not set!"));
-		return false;
-	}
-
-	if(callback)callback->task(filename+strprintf(" %d",imagecount));
-
-
-
-	return true;
-}
-
-void
-gif::end_frame()
-{
-	int w=desc.get_w(),h=desc.get_h(),i;
-	unsigned int value;
-	int
-		delaytime=round_to_int(100.0/desc.get_frame_rate());
-
-	bool build_off_previous(multi_image);
-
-	Palette prev_palette(curr_palette);
-
-	// Fill in the background color
-	if(!get_remove_alpha())
-	{
-		Surface::alpha_pen pen(curr_surface.begin(),1.0,Color::BLEND_BEHIND);
-		pen.set_value(get_canvas()->rend_desc().get_bg_color());
-		for(int y=0;y<curr_surface.get_h();y++,pen.inc_y())
-		{
-			int x;
-			for(x=0;x<curr_surface.get_w();x++,pen.inc_x())
-			{
-				if(pen.get_value().get_a()>0.1)
-					pen.put_value();
-				else
-					pen[0][0]=Color::alpha();
-			}
-			pen.dec_x(x);
-		}
-	}
-
-	if(local_palette)
-	{
-		curr_palette=Palette(curr_surface,256/(1<<(8-rootsize))-build_off_previous-1);
-		synfig::info("curr_palette.size()=%d",curr_palette.size());
-	}
-
-	int transparent_index(curr_palette.find_closest(Color(1,0,1,0))-curr_palette.begin());
-	bool has_transparency(curr_palette[transparent_index].color.get_a()<=0.00001);
-
-	if(has_transparency)
-		build_off_previous=false;
-
-	if(build_off_previous)
-	{
-		transparent_index=0;
-		has_transparency=true;
-	}
-
-#define DISPOSE_UNDEFINED			(0)
-#define DISPOSE_NONE				(1<<2)
-#define DISPOSE_RESTORE_BGCOLOR		(2<<2)
-#define DISPOSE_RESTORE_PREVIOUS	(3<<2)
-	int gec_flags(0);
-	if(build_off_previous)
-		gec_flags|=DISPOSE_NONE;
-	else
-		gec_flags|=DISPOSE_RESTORE_PREVIOUS;
-	if(has_transparency)
-		gec_flags|=1;
-
-	// output the Graphic Control Extension
-	fputc(0x21,file.get()); // Extension introducer
-	fputc(0xF9,file.get()); // Graphic Control Label
-	fputc(4,file.get()); // Block Size
-	fputc(gec_flags,file.get()); // Flags (Packed Fields)
-	fputc(delaytime&0x000000ff,file.get()); // Delay Time (MSB)
-	fputc((delaytime&0x0000ff00)>>8,file.get()); // Delay Time (LSB)
-	fputc(transparent_index,file.get()); // Transparent Color Index
-	fputc(0,file.get()); // Block Terminator
-
-	// output the image header
-	fputc(',',file.get());
-	fputc(0,file.get());	// image left
-	fputc(0,file.get());	// image left
-	fputc(0,file.get());	// image top
-	fputc(0,file.get());	// image top
-	fputc(w&0x000000ff,file.get());
-	fputc((w&0x0000ff00)>>8,file.get());
-	fputc(h&0x000000ff,file.get());
-	fputc((h&0x0000ff00)>>8,file.get());
-	if(local_palette)
-		fputc(0x80|(rootsize-1),file.get());	// flags
-	else
-		fputc(0x00+ rootsize-1,file.get());	// flags
-
-
-	if(local_palette)
-	{
-		Palette out(curr_palette);
-
-		if(build_off_previous)
-			curr_palette.insert(curr_palette.begin(),Color(1,0,1,0));
-		output_curr_palette();
-		curr_palette=out;
-	}
-
-	bs=bitstream(file);
-
-	// Prepare ourselves for LZW compression
-	codesize=rootsize+1;
-	nextcode=(1<<rootsize)+2;
-	table=lzwcode::NewTable((1<<rootsize));
-	node=table;
-
-	// Output the rootsize
-	fputc(rootsize,file.get());	// rootsize;
-
-	// Push a table reset into the bitstream
-	bs.push_value(1<<rootsize,codesize);
-
-	for(int cur_scanline=0;cur_scanline<desc.get_h();cur_scanline++)
-	{
-		//convert_color_format(curr_frame[cur_scanline], curr_surface[cur_scanline], desc.get_w(), PF_GRAY, gamma());
-
-		// Now we compress it!
-		for(i=0;i<w;i++)
-		{
-			Color color(curr_surface[cur_scanline][i].clamped());
-			Palette::iterator iter(curr_palette.find_closest(color));
-
-			if(dithering)
-			{
-				Color error(color-iter->color);
-				//error*=0.25;
-				if(curr_surface.get_h()>cur_scanline+1)
-				{
-					curr_surface[cur_scanline+1][i-1]  += error * ((float)3/(float)16);
-					curr_surface[cur_scanline+1][i]    += error * ((float)5/(float)16);
-					if(curr_surface.get_w()>i+1)
-						curr_surface[cur_scanline+1][i+1]  += error * ((float)1/(float)16);
-				}
-				if(curr_surface.get_w()>i+1)
-					curr_surface[cur_scanline][i+1]    += error * ((float)7/(float)16);
-			}
-
-			curr_frame[cur_scanline][i]=iter-curr_palette.begin();
-
-			value=curr_frame[cur_scanline][i];
-			if(build_off_previous)
-				value++;
-			if(value>(unsigned)(1<<rootsize)-1)
-				value=(1<<rootsize)-1;
-
-			// If the pixel is the same as the one that
-			// is already there, then we should make it
-			// transparent
-			if(build_off_previous)
-			{
-				if(lossy)
-				{
-
-					// Lossy
-					if(
-						abs( ( iter->color-prev_palette[prev_frame[cur_scanline][i]-1].color ).get_y() ) > (1.0/16.0) ||
-//						abs((int)value-(int)prev_frame[cur_scanline][i])>2||
-//						(value<=2 && value!=prev_frame[cur_scanline][i]) ||
-						(imagecount%iframe_density)==0 || imagecount==desc.get_frame_end()-1 ) // lossy version
-						prev_frame[cur_scanline][i]=value;
-					else
-					{
-						prev_frame[cur_scanline][i]=value;
-						value=0;
-					}
-				}
-				else
-				{
-					// lossless version
-					if(value!=prev_frame[cur_scanline][i])
-						prev_frame[cur_scanline][i]=value;
-					else
-						value=0;
-				}
-			}
-			else
-			prev_frame[cur_scanline][i]=value;
-
-			next=node->FindCode(value);
-			if(next)
-				node=next;
-			else
-			{
-				node->AddNode(nextcode, value);
-				bs.push_value(node->code, codesize);
-				node = table->FindCode(value);
-
-				// Check to see if we need to increase the codesize
-				if (nextcode == ( 1 << codesize))
-					codesize += 1;
-
-				nextcode += 1;
-
-				// check to see if we have filled up the table
-				if (nextcode == 4096)
-				{
-					// output the clear code: make sure to use the current
-					// codesize
-					bs.push_value((unsigned) 1 << rootsize, codesize);
-
-					delete table;
-					table = lzwcode::NewTable((1<<rootsize));
-					codesize = rootsize + 1;
-					nextcode = (1 << rootsize) + 2;
-
-					// since we have a new table, need the correct prefix
-					node = table->FindCode(value);
-				}
-			}
-		}
-	}
-
-
-
-
-
-	// Push the last code onto the bitstream
-	bs.push_value(node->code,codesize);
-
-	// Push a end-of-stream code onto the bitstream
-	bs.push_value((1<<rootsize)+1,codesize);
-
-	// Make sure everything is dumped out
-	bs.dump();
-
-	delete table;
-
-	fputc(0,file.get());		// Block terminator
-
-	fflush(file.get());
-	imagecount++;
-}
-
-synfig::Color*
-gif::start_scanline(int scanline)
-{
-	cur_scanline=scanline;
-	return curr_surface[scanline];
-}
-
-bool
-gif::end_scanline()
-{
-	if(!file)
-		return false;
-
-//	int w=desc.get_w(),i;
-//	unsigned int value;
-
-
-	return true;
-}