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10a8183b7e29883a80c2a4b2987716d3be2a069f
blender-archive/source/blender/imbuf/intern/hamx.c

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Initial revision
2002-10-12 11:37:38 +00:00
/**
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
* hamx.c
*
* $Id$
*/
#include "BLI_blenlib.h"
updated .c files to include: #ifdef HAVE_CONFIG_H #include <config.h> #endif Just need to finish cpp files now :) Kent -- mein@cs.umn.edu
2002-11-25 12:02:15 +00:00
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
Initial revision
2002-10-12 11:37:38 +00:00
#ifdef WIN32
#include "BLI_winstuff.h"
#include <io.h>
#endif
#include "imbuf.h"
#include "imbuf_patch.h"
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "IMB_allocimbuf.h"
#include "IMB_filter.h"
#include "IMB_ham.h"
#include "IMB_hamx.h"
/* actually hard coded endianness */
#define GET_BIG_LONG(x) (((uchar *) (x))[0] << 24 | ((uchar *) (x))[1] << 16 | ((uchar *) (x))[2] << 8 | ((uchar *) (x))[3])
#define GET_LITTLE_LONG(x) (((uchar *) (x))[3] << 24 | ((uchar *) (x))[2] << 16 | ((uchar *) (x))[1] << 8 | ((uchar *) (x))[0])
#define SWAP_L(x) (((x << 24) & 0xff000000) | ((x << 8) & 0xff0000) | ((x >> 8) & 0xff00) | ((x >> 24) & 0xff))
#define SWAP_S(x) (((x << 8) & 0xff00) | ((x >> 8) & 0xff))
/* more endianness... should move to a separate file... */
Fixed defined __sparc to also check for __sparc__ (thanks to Ferris)
2002-10-29 21:55:52 +00:00
#if defined(__sgi) || defined (__sparc) || defined (__sparc__) || defined (__PPC__) || defined (__ppc__) || defined (__BIG_ENDIAN__)
Initial revision
2002-10-12 11:37:38 +00:00
#define GET_ID GET_BIG_LONG
#define LITTLE_LONG SWAP_LONG
#else
#define GET_ID GET_LITTLE_LONG
#define LITTLE_LONG ENDIAN_NOP
#endif
#ifndef ABS
#define ABS(x) ((x) < 0 ? -(x) : (x))
#endif
static uchar hamx_array_char[] = {
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0x00,0xA0,0x90,0x00, 0x00,0xA0,0x90,0x30, 0x00,0xA0,0x90,0x60, 0x00,0xA0,0x90,0x90, 0x00,0xA0,0x90,0xC0, 0x00,0xA0,0x90,0xF0,
0x00,0xA0,0xB0,0x00, 0x00,0xA0,0xB0,0x30, 0x00,0xA0,0xB0,0x60, 0x00,0xA0,0xB0,0x90, 0x00,0xA0,0xB0,0xC0, 0x00,0xA0,0xB0,0xF0,
0x00,0xA0,0xD0,0x00, 0x00,0xA0,0xD0,0x30, 0x00,0xA0,0xD0,0x60, 0x00,0xA0,0xD0,0x90, 0x00,0xA0,0xD0,0xC0, 0x00,0xA0,0xD0,0xF0,
0x00,0xA0,0xF0,0x00, 0x00,0xA0,0xF0,0x30, 0x00,0xA0,0xF0,0x60, 0x00,0xA0,0xF0,0x90, 0x00,0xA0,0xF0,0xC0, 0x00,0xA0,0xF0,0xF0,
0x00,0xF0,0x00,0x00, 0x00,0xF0,0x00,0x30, 0x00,0xF0,0x00,0x60, 0x00,0xF0,0x00,0x90, 0x00,0xF0,0x00,0xC0, 0x00,0xF0,0x00,0xF0,
0x00,0xF0,0x20,0x00, 0x00,0xF0,0x20,0x30, 0x00,0xF0,0x20,0x60, 0x00,0xF0,0x20,0x90, 0x00,0xF0,0x20,0xC0, 0x00,0xF0,0x20,0xF0,
0x00,0xF0,0x40,0x00, 0x00,0xF0,0x40,0x30, 0x00,0xF0,0x40,0x60, 0x00,0xF0,0x40,0x90, 0x00,0xF0,0x40,0xC0, 0x00,0xF0,0x40,0xF0,
0x00,0xF0,0x60,0x00, 0x00,0xF0,0x60,0x30, 0x00,0xF0,0x60,0x60, 0x00,0xF0,0x60,0x90, 0x00,0xF0,0x60,0xC0, 0x00,0xF0,0x60,0xF0,
0x00,0xF0,0x90,0x00, 0x00,0xF0,0x90,0x30, 0x00,0xF0,0x90,0x60, 0x00,0xF0,0x90,0x90, 0x00,0xF0,0x90,0xC0, 0x00,0xF0,0x90,0xF0,
0x00,0xF0,0xB0,0x00, 0x00,0xF0,0xB0,0x30, 0x00,0xF0,0xB0,0x60, 0x00,0xF0,0xB0,0x90, 0x00,0xF0,0xB0,0xC0, 0x00,0xF0,0xB0,0xF0,
0x00,0xF0,0xD0,0x00, 0x00,0xF0,0xD0,0x30, 0x00,0xF0,0xD0,0x60, 0x00,0xF0,0xD0,0x90, 0x00,0xF0,0xD0,0xC0, 0x00,0xF0,0xD0,0xF0,
0x00,0xF0,0xF0,0x00, 0x00,0xF0,0xF0,0x30, 0x00,0xF0,0xF0,0x60, 0x00,0xF0,0xF0,0x90, 0x00,0xF0,0xF0,0xC0, 0x00,0xF0,0xF0,0xF0,
0x00,0x10,0x10,0x10, 0x00,0x20,0x20,0x20, 0x00,0x30,0x30,0x30, 0x00,0x40,0x40,0x40,
0x00,0x50,0x50,0x50, 0x00,0x60,0x60,0x60, 0x00,0x70,0x70,0x70, 0x00,0x80,0x80,0x80,
0x00,0x90,0x90,0x90, 0x00,0xA0,0xA0,0xA0, 0x00,0xB0,0xB0,0xB0, 0x00,0xC0,0xC0,0xC0,
0x00,0xD0,0xD0,0xD0, 0x00,0xE0,0xE0,0xE0
};
static int * hamx_array = (int *) (hamx_array_char);
static uchar cmap_hamx[] = {
0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x30, 0x00,0x00,0x00,0x60, 0x00,0x00,0x00,0x90, 0x00,0x00,0x00,0xC0, 0x00,0x00,0x00,0xF0,
0x00,0x00,0x20,0x00, 0x00,0x00,0x20,0x30, 0x00,0x00,0x20,0x60, 0x00,0x00,0x20,0x90, 0x00,0x00,0x20,0xC0, 0x00,0x00,0x20,0xF0,
0x00,0x00,0x40,0x00, 0x00,0x00,0x40,0x30, 0x00,0x00,0x40,0x60, 0x00,0x00,0x40,0x90, 0x00,0x00,0x40,0xC0, 0x00,0x00,0x40,0xF0,
0x00,0x00,0x60,0x00, 0x00,0x00,0x60,0x30, 0x00,0x00,0x60,0x60, 0x00,0x00,0x60,0x90, 0x00,0x00,0x60,0xC0, 0x00,0x00,0x60,0xF0,
0x00,0x00,0x90,0x00, 0x00,0x00,0x90,0x30, 0x00,0x00,0x90,0x60, 0x00,0x00,0x90,0x90, 0x00,0x00,0x90,0xC0, 0x00,0x00,0x90,0xF0,
0x00,0x00,0xB0,0x00, 0x00,0x00,0xB0,0x30, 0x00,0x00,0xB0,0x60, 0x00,0x00,0xB0,0x90, 0x00,0x00,0xB0,0xC0, 0x00,0x00,0xB0,0xF0,
0x00,0x00,0xD0,0x00, 0x00,0x00,0xD0,0x30, 0x00,0x00,0xD0,0x60, 0x00,0x00,0xD0,0x90, 0x00,0x00,0xD0,0xC0, 0x00,0x00,0xD0,0xF0,
0x00,0x00,0xF0,0x00, 0x00,0x00,0xF0,0x30, 0x00,0x00,0xF0,0x60, 0x00,0x00,0xF0,0x90, 0x00,0x00,0xF0,0xC0, 0x00,0x00,0xF0,0xF0,
0x00,0x50,0x00,0x00, 0x00,0x50,0x00,0x30, 0x00,0x50,0x00,0x60, 0x00,0x50,0x00,0x90, 0x00,0x50,0x00,0xC0, 0x00,0x50,0x00,0xF0,
0x00,0x50,0x20,0x00, 0x00,0x50,0x20,0x30, 0x00,0x50,0x20,0x60, 0x00,0x50,0x20,0x90, 0x00,0x50,0x20,0xC0, 0x00,0x50,0x20,0xF0,
0x00,0x50,0x40,0x00, 0x00,0x50,0x40,0x30, 0x00,0x50,0x40,0x60, 0x00,0x50,0x40,0x90, 0x00,0x50,0x40,0xC0, 0x00,0x50,0x40,0xF0,
0x00,0x50,0x60,0x00, 0x00,0x50,0x60,0x30, 0x00,0x50,0x60,0x60, 0x00,0x50,0x60,0x90, 0x00,0x50,0x60,0xC0, 0x00,0x50,0x60,0xF0,
0x00,0x50,0x90,0x00, 0x00,0x50,0x90,0x30, 0x00,0x50,0x90,0x60, 0x00,0x50,0x90,0x90, 0x00,0x50,0x90,0xC0, 0x00,0x50,0x90,0xF0,
0x00,0x50,0xB0,0x00, 0x00,0x50,0xB0,0x30, 0x00,0x50,0xB0,0x60, 0x00,0x50,0xB0,0x90, 0x00,0x50,0xB0,0xC0, 0x00,0x50,0xB0,0xF0,
0x00,0x50,0xD0,0x00, 0x00,0x50,0xD0,0x30, 0x00,0x50,0xD0,0x60, 0x00,0x50,0xD0,0x90, 0x00,0x50,0xD0,0xC0, 0x00,0x50,0xD0,0xF0,
0x00,0x50,0xF0,0x00, 0x00,0x50,0xF0,0x30, 0x00,0x50,0xF0,0x60, 0x00,0x50,0xF0,0x90, 0x00,0x50,0xF0,0xC0, 0x00,0x50,0xF0,0xF0,
0x00,0xA0,0x00,0x00, 0x00,0xA0,0x00,0x30, 0x00,0xA0,0x00,0x60, 0x00,0xA0,0x00,0x90, 0x00,0xA0,0x00,0xC0, 0x00,0xA0,0x00,0xF0,
0x00,0xA0,0x20,0x00, 0x00,0xA0,0x20,0x30, 0x00,0xA0,0x20,0x60, 0x00,0xA0,0x20,0x90, 0x00,0xA0,0x20,0xC0, 0x00,0xA0,0x20,0xF0,
0x00,0xA0,0x40,0x00, 0x00,0xA0,0x40,0x30, 0x00,0xA0,0x40,0x60, 0x00,0xA0,0x40,0x90, 0x00,0xA0,0x40,0xC0, 0x00,0xA0,0x40,0xF0,
0x00,0xA0,0x60,0x00, 0x00,0xA0,0x60,0x30, 0x00,0xA0,0x60,0x60, 0x00,0xA0,0x60,0x90, 0x00,0xA0,0x60,0xC0, 0x00,0xA0,0x60,0xF0,
0x00,0xA0,0x90,0x00, 0x00,0xA0,0x90,0x30, 0x00,0xA0,0x90,0x60, 0x00,0xA0,0x90,0x90, 0x00,0xA0,0x90,0xC0, 0x00,0xA0,0x90,0xF0,
0x00,0xA0,0xB0,0x00, 0x00,0xA0,0xB0,0x30, 0x00,0xA0,0xB0,0x60, 0x00,0xA0,0xB0,0x90, 0x00,0xA0,0xB0,0xC0, 0x00,0xA0,0xB0,0xF0,
0x00,0xA0,0xD0,0x00, 0x00,0xA0,0xD0,0x30, 0x00,0xA0,0xD0,0x60, 0x00,0xA0,0xD0,0x90, 0x00,0xA0,0xD0,0xC0, 0x00,0xA0,0xD0,0xF0,
0x00,0xA0,0xF0,0x00, 0x00,0xA0,0xF0,0x30, 0x00,0xA0,0xF0,0x60, 0x00,0xA0,0xF0,0x90, 0x00,0xA0,0xF0,0xC0, 0x00,0xA0,0xF0,0xF0,
0x00,0xF0,0x00,0x00, 0x00,0xF0,0x00,0x30, 0x00,0xF0,0x00,0x60, 0x00,0xF0,0x00,0x90, 0x00,0xF0,0x00,0xC0, 0x00,0xF0,0x00,0xF0,
0x00,0xF0,0x20,0x00, 0x00,0xF0,0x20,0x30, 0x00,0xF0,0x20,0x60, 0x00,0xF0,0x20,0x90, 0x00,0xF0,0x20,0xC0, 0x00,0xF0,0x20,0xF0,
0x00,0xF0,0x40,0x00, 0x00,0xF0,0x40,0x30, 0x00,0xF0,0x40,0x60, 0x00,0xF0,0x40,0x90, 0x00,0xF0,0x40,0xC0, 0x00,0xF0,0x40,0xF0,
0x00,0xF0,0x60,0x00, 0x00,0xF0,0x60,0x30, 0x00,0xF0,0x60,0x60, 0x00,0xF0,0x60,0x90, 0x00,0xF0,0x60,0xC0, 0x00,0xF0,0x60,0xF0,
0x00,0xF0,0x90,0x00, 0x00,0xF0,0x90,0x30, 0x00,0xF0,0x90,0x60, 0x00,0xF0,0x90,0x90, 0x00,0xF0,0x90,0xC0, 0x00,0xF0,0x90,0xF0,
0x00,0xF0,0xB0,0x00, 0x00,0xF0,0xB0,0x30, 0x00,0xF0,0xB0,0x60, 0x00,0xF0,0xB0,0x90, 0x00,0xF0,0xB0,0xC0, 0x00,0xF0,0xB0,0xF0,
0x00,0xF0,0xD0,0x00, 0x00,0xF0,0xD0,0x30, 0x00,0xF0,0xD0,0x60, 0x00,0xF0,0xD0,0x90, 0x00,0xF0,0xD0,0xC0, 0x00,0xF0,0xD0,0xF0,
0x00,0xF0,0xF0,0x00, 0x00,0xF0,0xF0,0x30, 0x00,0xF0,0xF0,0x60, 0x00,0xF0,0xF0,0x90, 0x00,0xF0,0xF0,0xC0, 0x00,0xF0,0xF0,0xF0,
0x00,0x10,0x10,0x10, 0x00,0x20,0x20,0x20, 0x00,0x30,0x30,0x30, 0x00,0x40,0x40,0x40, 0x00,0x50,0x50,0x50, 0x00,0x60,0x60,0x60,
0x00,0x70,0x70,0x70, 0x00,0x80,0x80,0x80, 0x00,0x90,0x90,0x90, 0x00,0xA0,0xA0,0xA0, 0x00,0xB0,0xB0,0xB0, 0x00,0xC0,0xC0,0xC0,
0x00,0xD0,0xD0,0xD0, 0x00,0xE0,0xE0,0xE0
};
float adat_gamma = 1.0;
float adat_distort = 1.0;
/*
*
* Nieuwe versie:
*
* 32 helderheden Y 15 direct te bereiken (zwart & wit zijn specials)
* 16 kleuren H ue
* 7 intensiteiten S aturation
*
* Totaal 3584 'verschillende' kleuren. Eerste 512 kleuren vrij.
*
*
*/
void imb_convhamx(struct ImBuf *ibuf, unsigned char coltab[][4], short *deltab)
/* struct ImBuf *ibuf; */
/* uchar coltab[][4]; */
/* short *deltab; */
{
short r,g,b,lr,lg,lb,dr,dg,db,col,fout,type,step;
int i;
uchar *rect;
/*
b = 0000 xxxx
g = 0001 xxxx
r = 0010 xxxx
cmap >= 48
*/
for (step = 0 ; step < 2 ; step ++){
rect = (uchar *) ibuf->rect;
rect += 4*step;
i = ((ibuf->x * ibuf->y) + 2 - step - 1) / 2;
lb = coltab[0][1];
lg = coltab[0][2];
lr = coltab[0][3];
type = col = 0;
for ( ;i>0;i--){
b = rect[2] >> 4;
g = rect[1] >> 4;
r = rect[0] >> 4;
if ((b-lb) | (g-lg) | (r-lr)){
col = ((b<<8) + (g<<4) + r) << 1;
fout = deltab[col + 1];
col = deltab[col];
type = 0;
dr = quadr[lr-r] ;
dg = quadr[lg-g] ;
db = quadr[lb-b];
if ((dr+dg)<=fout) {
fout = dr+dg ;
type = 1;
}
if ((dg+db)<=fout) {
fout = dg+db;
type = 2;
}
if ((dr+db)<=fout) {
fout = dr+db;
type = 4;
}
switch(type){
case 1:
lb = b ;
col = b;
break;
case 4:
lg = g ;
col = g+16;
break;
case 2:
lr = r ;
col = r + 32;
break;
default:
/*printf("%04x %5d %5d ", (b<<8) + (g<<4) + r, col, fout);*/
lb = coltab[col][1];
lg = coltab[col][2];
lr = coltab[col][3];
/*printf("%01x%01x%01x %01x%01x%01x\n", b, g, r, lb, lg, lr);*/
col += 48;
}
}
rect[3] = col;
rect += 8;
}
}
}
static short dec_hamx(struct ImBuf * ibuf, unsigned char *body, int cmap[])
/* struct ImBuf * ibuf; */
/* uchar *body; */
/* int cmap[]; */
{
int todo,i;
int j,step,col;
unsigned int *rect;
for (step = 0 ; step < 2 ; step ++){
rect = ibuf->rect;
rect += step;
todo = (ibuf->x * ibuf->y + 2 - step - 1) / 2;
col = cmap[0];
while (todo>0){
i = *body++;
if (i & 128){ /* fill */
i = 257-i;
todo -= i;
j = *(body++);
col = ((col & hamx_array[j]) | hamx_array[j + 256]);
do{
*rect = col;
rect += 2;
}while (--i);
} else{ /* copy */
i++;
todo-=i;
do{
j = *(body++);
*rect = col = ((col & hamx_array[j]) | hamx_array[j + 256]);
rect += 2;
}while (--i);
}
}
if (todo) return (0);
}
return(1);
}
struct ImBuf *imb_loadanim(int *iffmem, int flags)
{
int chunk, totlen, len, *mem, cmaplen = 0;
unsigned int *cmap;
uchar *body = 0;
struct Adat adat;
struct ImBuf *ibuf=0;
static int is_flipped = FALSE;
mem=iffmem;
if (GET_ID(mem) != FORM) return (0);
if (GET_ID(mem + 2) != ANIM) return (0);
totlen= (GET_BIG_LONG(mem + 1) + 1) & ~1;
mem += 3;
totlen -= 4;
adat.w = 0;
adat.xorig = 0;
adat.yorig = 0;
adat.gamma = adat_gamma;
adat.distort = adat_distort;
while(totlen > 0){
chunk = GET_ID(mem);
len = (GET_BIG_LONG(mem + 1) + 1) & ~1;
mem += 2;
totlen -= len+8;
switch (chunk){
case ADAT:
if (len > sizeof(struct Adat)){
memcpy(&adat,mem,sizeof(struct Adat));
} else{
memcpy(&adat,mem,len);
}
adat.w = BIG_SHORT(adat.w);
adat.h = BIG_SHORT(adat.h);
adat.type = BIG_SHORT(adat.type);
adat.xorig = BIG_SHORT(adat.xorig);
adat.yorig = BIG_SHORT(adat.yorig);
break;
case CMAP:
cmap = (unsigned int *) mem;
cmaplen = len;
break;
case BODY:
body = (uchar *) mem;
break;
}
mem = (int *)((uchar *)mem +len);
}
if (body == 0) return (0);
if (adat.w == 0) return (0);
adat_gamma = adat.gamma;
adat_distort = adat.distort;
if (flags & IB_test) ibuf=IMB_allocImBuf(adat.w, adat.h, 24, 0, 0);
else ibuf=IMB_allocImBuf(adat.w, adat.h, 24, IB_rect, 0);
if (ibuf==0) return (0);
ibuf->ftype = (Anim | adat.type);
ibuf->xorig = adat.xorig;
ibuf->yorig = adat.yorig;
ibuf->flags = flags;
if (cmaplen){
ibuf->cmap = malloc(cmaplen);
memcpy(ibuf->cmap, cmap, cmaplen);
ibuf->maxcol = cmaplen >> 2;
}
if (flags & IB_test){
if (flags & IB_freem) free(iffmem);
return(ibuf);
}
switch (adat.type){
case HAMX:
if (flags & IB_rect){
if (!is_flipped) {
int i;
unsigned int * t;
t = (unsigned int *) hamx_array_char;
for (i = 0; i < sizeof(hamx_array_char) / sizeof(int) ; i++) {
t[i] = SWAP_LONG(t[i]);
}
t = (unsigned int *) cmap_hamx;
for (i = 0; i < sizeof(cmap_hamx) / sizeof(int) ; i++) {
t[i] = SWAP_LONG(t[i]);
}
is_flipped= TRUE;
}
if (dec_hamx(ibuf,body,(int*) cmap_hamx) == 0){
IMB_freeImBuf(ibuf);
ibuf = 0;
}
if (flags & IB_ttob) IMB_flipy(ibuf);
}
break;
default:
IMB_freeImBuf(ibuf);
ibuf = 0;
}
if (flags & IB_freem) free(iffmem);
return (ibuf);
}
static unsigned char *makebody_anim(int bytes,
unsigned char *buf,
unsigned char *rect)
/* register uchar *buf; */
/* register uchar *rect; */
/* int bytes; */
{
register uchar last,this;
register int copy;
register uchar *rectstart,*temp;
bytes--;
rectstart = rect;
last = *rect++;
this = *rect++;
copy = last^this;
while (bytes>0){
if (copy){
do{
last = this;
this = *rect++;
if (last == this){
if (this == rect[-3]){ /* drie dezelfde? */
bytes --; /* bytes goed zetten */
break;
}
}
}while (--bytes != 0);
copy = rect-rectstart;
copy --;
if (bytes) copy -= 2;
temp = rect;
rect = rectstart;
while (copy){
last = copy;
if (copy>MAXDAT) last = MAXDAT;
copy -= last;
*buf++ = last-1;
do{
*buf++ = *rect++;
}while(--last != 0);
}
rectstart = rect;
rect = temp;
last = this;
copy = FALSE;
} else {
while (*rect++ == this){ /* zoek naar eerste afwijkende byte */
if (--bytes == 0) break; /* of einde regel */
}
rect --;
copy = rect-rectstart;
rectstart = rect;
bytes --;
this = *rect++;
while (copy){
if (copy>MAXRUN){
*buf++ = -(MAXRUN-1);
*buf++ = last;
copy -= MAXRUN;
} else {
*buf++ = -(copy-1);
*buf++ = last;
break;
}
}
copy=TRUE;
}
}
return (buf);
}
short imb_enc_anim(struct ImBuf *ibuf, int file)
/* struct ImBuf *ibuf; */
/* int file; */
{
Ok since no one cares about this I put a 5 second fix on it and won't worry about it anymore :) (initalized it to 0 and then later return 0 if its still 0 before doing the work) Kent -- mein@cs.umn.edu
2002-12-20 01:14:46 +00:00
int step, size, i, skip, steps = 0;
Initial revision
2002-10-12 11:37:38 +00:00
uchar *buf1, *crect, *_buf1, *_buf2, *bufend;
short ok = TRUE;
if (ibuf == 0) return (0);
if (file < 0 ) return (0);
if (ibuf->rect == 0) return(0);
/* dither toevoegen */
switch(ibuf->ftype){
case AN_hamx:
ibuf->cmap = (unsigned int *) cmap_hamx;
ibuf->mincol = 0;
ibuf->maxcol = sizeof(cmap_hamx) / 4;
imb_converttoham(ibuf);
steps = 2;
break;
}
Ok since no one cares about this I put a 5 second fix on it and won't worry about it anymore :) (initalized it to 0 and then later return 0 if its still 0 before doing the work) Kent -- mein@cs.umn.edu
2002-12-20 01:14:46 +00:00
if (steps == 0) return 0;
Initial revision
2002-10-12 11:37:38 +00:00
size = ((ibuf->x + 1)* (ibuf->y + 1)) / steps + 1024;
if ((_buf1 = malloc(size)) == 0) return(0);
if ((_buf2 = malloc(size)) == 0){
free(_buf1);
return(0);
}
skip = 4 * steps;
for (step = 0 ; step < steps ; step ++){
crect = (uchar *) ibuf->rect;
crect += 4 * step;
size = (ibuf->x * ibuf->y + steps - step - 1) / steps;
buf1 = _buf1;
if ((ibuf->ftype == AN_hamx) || (ibuf->ftype == AN_yuvx)){
crect += 3;
for (i = size ; i>0 ; i--){
*(buf1 ++) = *crect;
crect += skip;
}
} else{
for (i = size ; i>0 ; i--){
*(buf1 ++) = crect[1] + (crect[2] >> 2) + (crect[3] >> 5);
crect += skip;
}
}
bufend = makebody_anim(size,_buf2,_buf1);
if (bufend == 0){
ok = FALSE;
break;
}
size = bufend - _buf2;
if (write(file, _buf2, size) != size){
ok = FALSE;
break;
}
}
free(_buf1);
free(_buf2);
return (ok);
}
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