-/*! ========================================================================
-** Sinfg
-** Template Header File
-** $Id: trgt_gif.h,v 1.1.1.1 2005/01/04 01:23:10 darco Exp $
+/* === S Y N F I G ========================================================= */
+/*! \file trgt_gif.h
+** \brief Template Header
**
-** Copyright (c) 2002 Robert B. Quattlebaum Jr.
+** $Id$
**
-** This software and associated documentation
-** are CONFIDENTIAL and PROPRIETARY property of
-** the above-mentioned copyright holder.
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
-** You may not copy, print, publish, or in any
-** other way distribute this software without
-** a prior written agreement with
-** the copyright holder.
+** 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 ===========================================================
**
/* === S T A R T =========================================================== */
-#ifndef __SINFG_TRGT_GIF_H
-#define __SINFG_TRGT_GIF_H
+#ifndef __SYNFIG_TRGT_GIF_H
+#define __SYNFIG_TRGT_GIF_H
/* === H E A D E R S ======================================================= */
-#include <sinfg/target_scanline.h>
-#include <sinfg/string.h>
-#include <sinfg/smartfile.h>
+#include <synfig/target_scanline.h>
+#include <synfig/string.h>
+#include <synfig/smartfile.h>
#include <cstdio>
-#include <sinfg/surface.h>
-#include <sinfg/palette.h>
+#include <synfig/surface.h>
+#include <synfig/palette.h>
/* === M A C R O S ========================================================= */
/* === C L A S S E S & S T R U C T S ======================================= */
-class gif : public sinfg::Target_Scanline
+class gif : public synfig::Target_Scanline
{
- SINFG_TARGET_MODULE_EXT
+ SYNFIG_TARGET_MODULE_EXT
private:
// Class for abstracting the
// output of the codes
struct bitstream
{
- sinfg::SmartFILE file;
+ synfig::SmartFILE file;
unsigned char pool;
char curr_bit;
bitstream():pool(0),curr_bit(0),curr_pos(0) {}
- bitstream(sinfg::SmartFILE file):file(file),pool(0),curr_bit(0),curr_pos(0) {}
+ bitstream(synfig::SmartFILE file):file(file),pool(0),curr_bit(0),curr_pos(0) {}
unsigned char buffer[256];
int curr_pos;
-
+
// Pushes a single bit onto the bit
void push_bit(bool bit)
{
if(curr_bit==8)
empty();
}
-
- // Emptys out the current pool into
+
+ // Empties out the current pool into
// the buffer. Calls 'dump()' if the
// buffer is full.
void empty()
pool=0;
if(curr_pos==255)dump();
}
-
+
// If there is anything in the
- // buffer or in the pool, it
+ // buffer or in the pool, it
// dumps it to the filestream.
// Buffer and pool are cleared.
void dump()
curr_pos=0;
}
}
-
+
// Pushes a symbol of the given size
// onto the bitstream.
void push_value(int value, int size)
int code; // lzwcode
struct lzwcode* kids; // children of this node
struct lzwcode* next; // siblings of this node
-
+
lzwcode():value(0),code(0),kids(0),next(0) { }
-
+
lzwcode *FindCode(int value)
{
lzwcode *node=this;
-
+
// check the children (kids) of the node for the value
for (node = node->kids; node != 0; node = node->next)
if (node->value == value)
return(node);
return(0);
}
-
+
void AddNode(unsigned short code, unsigned short value)
{
lzwcode *n = new lzwcode;
-
+
// add a new child to node; the child will have code and value
n->value = value;
n->code = code;
n->next = this->kids;
this->kids = n;
}
-
+
static lzwcode * NewTable(int values)
{
int i;
lzwcode * table = new lzwcode;
-
+
table->kids = 0;
for (i = 0; i < values; i++)
table->AddNode( i, i);
-
+
return(table);
}
-
+
// Destructor just deletes any
- // children and sibblings.
+ // children and siblings.
~lzwcode()
{
if(kids)
private:
bitstream bs;
- sinfg::String filename;
- sinfg::SmartFILE file;
- int
+ synfig::String filename;
+ synfig::SmartFILE file;
+ int
i, // General-purpose index
codesize, // Current code size
- rootsize, // Size of pixel bits (will be recalculted)
+ rootsize, // Size of pixel bits (will be recalculated)
nextcode; // Next code to use
lzwcode *table,*next,*node;
-
- sinfg::Surface curr_surface;
+
+ synfig::Surface curr_surface;
etl::surface<unsigned char> curr_frame;
etl::surface<unsigned char> prev_frame;
int iframe_density;
int loop_count;
bool local_palette;
-
- sinfg::Palette curr_palette;
-
+
+ synfig::Palette curr_palette;
+
void output_curr_palette();
-
+
public:
gif(const char *filename);
- virtual bool set_rend_desc(sinfg::RendDesc *desc);
+ virtual bool set_rend_desc(synfig::RendDesc *desc);
virtual bool init();
- virtual bool start_frame(sinfg::ProgressCallback *cb);
+ virtual bool start_frame(synfig::ProgressCallback *cb);
virtual void end_frame();
virtual ~gif();
-
- virtual sinfg::Color * start_scanline(int scanline);
+
+ virtual synfig::Color * start_scanline(int scanline);
virtual bool end_scanline(void);
};
projects / synfig.git / blobdiff