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/* This file is part of ksquirrel-libs (http://ksquirrel.sf.net)
Copyright (c) 2004 Dmitry Baryshev <ksquirrel@tut.by>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation;
either version 2 of the License, or (at your option) any later
version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
as32 with this library; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <iostream>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "ksquirrel-libs/fmt_types.h"
#include "ksquirrel-libs/fmt_utils.h"
#include "ksquirrel-libs/fileio.h"
#include "ksquirrel-libs/error.h"
#include "fmt_codec_xbm_defs.h"
#include "fmt_codec_xbm.h"
#include "../xpm/codec_xbm.xpm"
/*
*
* XBM is a native file format of the X Window System and is used for
* storing cursor and icon bitmaps that are used in the X GUI.
* XBMfiles are quite different in that they are actually C language source
* files that are created to be read by a C compiler rather than a
* graphical display program.
*
*/
fmt_codec::fmt_codec() : fmt_codec_base()
{}
fmt_codec::~fmt_codec()
{}
void fmt_codec::options(codec_options *o)
{
o->version = "0.7.0";
o->name = "X BitMap";
o->filter = "*.xbm ";
o->config = "";
o->mime = "";
o->mimetype = "image/x-xbm";
o->pixmap = codec_xbm;
o->readable = true;
o->canbemultiple = false;
o->writestatic = false;
o->writeanimated = false;
o->needtempfile = false;
}
s32 fmt_codec::read_init(const std::string &file)
{
fptr = fopen(file.c_str(), "rb");
if(!fptr)
return SQE_R_NOFILE;
currentImage = -1;
finfo.animated = false;
return SQE_OK;
}
s32 fmt_codec::read_next()
{
long _tmp;
s8 str[256], *ptr;
currentImage++;
if(currentImage)
return SQE_NOTOK;
fmt_image image;
if(!skip_comments(fptr))
return SQE_R_BADFILE;
if(!sq_fgets(str, sizeof(str)-1, fptr))
return SQE_R_BADFILE;
if(strncmp(str, "#define ", 8) != 0)
return SQE_R_BADFILE;
if((ptr = strstr(str, "_width ")) == NULL)
return SQE_R_BADFILE;
image.w = (long)atoi(ptr+6);
if(!sq_fgets(str, sizeof(str)-1, fptr))
return SQE_R_BADFILE;
if(strncmp(str, "#define ", 8) != 0)
return SQE_R_BADFILE;
if((ptr = strstr(str, "_height ")) == NULL)
return SQE_R_BADFILE;
image.h = (long)atoi(ptr+7);
while(sq_fgets(str, sizeof(str)-1, fptr))
{
if(sq_ferror(fptr)) return SQE_R_BADFILE;
if(strncmp(str, "#define ", 8) != 0)
break;
}
if(str[0] == '\n') if(!sq_fgets(str, sizeof(str)-1, fptr)) return SQE_R_BADFILE;
if(strstr(str, "_bits[") == NULL || (ptr = strrchr(str, '{')) == NULL)
return SQE_R_BADFILE;
if((strstr(str, "unsigned") && (strstr(str, "char"))) || strstr(str, "char"))
version = 11;
else if(strstr(str, "short"))
version = 10;
else
return SQE_R_NOTSUPPORTED;
_tmp = lscan = image.w;
image.bpp = 1;
lscan /= 8;
lscan = lscan + ((_tmp%8)?1:0);
memset(pal, 255, sizeof(RGB));
memset(pal+1, 0, sizeof(RGB));
image.compression = "-";
image.colorspace = fmt_utils::colorSpaceByBpp(1);
finfo.image.push_back(image);
return SQE_OK;
}
s32 fmt_codec::read_next_pass()
{
return SQE_OK;
}
s32 fmt_codec::read_scanline(RGBA *scan)
{
fmt_image *im = image(currentImage);
fmt_utils::fillAlpha(scan, im->w);
s8 index, c;
s32 counter = 0, remain = (im->w <= 8) ? im->w : (im->w % 8), j;
u32 bt;
for(j = 0;j < lscan;j++)
{
fscanf(fptr, "%x%c", &bt, &c);
if(sq_ferror(fptr)) return SQE_R_BADFILE;
// @todo make faster
if(j==lscan-1 && (remain-0)<=0 && remain)break; index = (bt & 1); memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-1)<=0 && remain)break; index = (bt & 2) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-2)<=0 && remain)break; index = (bt & 4) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-3)<=0 && remain)break; index = (bt & 8) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-4)<=0 && remain)break; index = (bt & 16) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-5)<=0 && remain)break; index = (bt & 32) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-6)<=0 && remain)break; index = (bt & 64) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
if(j==lscan-1 && (remain-7)<=0 && remain)break; index = (bt & 128) ? 1 : 0; memcpy(scan+counter, pal+(s32)index, 3); counter++;
}
return SQE_OK;
}
void fmt_codec::read_close()
{
fclose(fptr);
finfo.meta.clear();
finfo.image.clear();
}
/* skip a single line C-like comment */
bool skip_comments(FILE *fp)
{
s8 str[513];
s32 pos;
do
{
pos = ftell(fp);
if(!sq_fgets(str, 512, fp)) return false;
if(!strstr(str, "/*"))
break;
}while(true);
fsetpos(fp, (fpos_t*)&pos);
return true;
}
#include "fmt_codec_cd_func.h"
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