diff options
Diffstat (limited to 'kernel/kls_xpm/fmt_codec_xpm.cpp')
-rw-r--r-- | kernel/kls_xpm/fmt_codec_xpm.cpp | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/kernel/kls_xpm/fmt_codec_xpm.cpp b/kernel/kls_xpm/fmt_codec_xpm.cpp new file mode 100644 index 0000000..e3503df --- /dev/null +++ b/kernel/kls_xpm/fmt_codec_xpm.cpp @@ -0,0 +1,258 @@ +/* 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 <map> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +#include "ksquirrel-libs/fmt_types.h" +#include "ksquirrel-libs/fileio.h" +#include "ksquirrel-libs/error.h" +#include "ksquirrel-libs/fmt_utils.h" + +#include "fmt_codec_xpm.h" +#include "fmt_codec_xpm_defs.h" + +#include "xpm_utils.h" + +#include "../xpm/codec_xpm.xpm" + +/* + * + * The XPM (X PixMap) format is the current de facto standard for storing X Window + * pixmap data to a disk file. This format is supported by many image editors, + * graphics window managers, and image file converters. + * + * + * XPM is capable of storing black-and-white, gray-scale, or color image data. + * Hotspot information for cursor bitmaps may also be stored. Although small + * collections of data, such as icons, are typically associated with XPM files, + * there is no limit to the size of an image or the number of colors that may be + * stored in an XPM file. + * + */ + +fmt_codec::fmt_codec() : fmt_codec_base() +{ + fillmap(); +} + +fmt_codec::~fmt_codec() +{} + +void fmt_codec::options(codec_options *o) +{ + o->version = "0.6.4"; + o->name = "X11 Pixmap"; + o->filter = "*.xpm "; + o->config = ""; + o->mime = "/\\* XPM \\*/\n"; + o->mimetype = "image/x-xpm"; + o->pixmap = codec_xpm; + o->readable = true; + o->canbemultiple = false; + o->writestatic = false; + o->writeanimated = false; + o->needtempfile = false; +} + +s32 fmt_codec::read_init(const std::string &fl) +{ + frs.open(fl.c_str(), ios::binary | ios::in); + + if(!frs.good()) + return SQE_R_NOFILE; + + currentImage = -1; + + finfo.animated = false; + + file.clear(); + + return SQE_OK; +} + +s32 fmt_codec::read_next() +{ + currentImage++; + + if(currentImage) + return SQE_NOTOK; + + fmt_image image; + + s32 i; + s8 str[256]; + + s32 ret; + + while(true) { ret = skip_comments(frs); if(ret == 1) continue; else if(!ret) break; else return SQE_R_BADFILE; } + if(!frs.getS(str, 256)) return SQE_R_BADFILE; + if(strncmp(str, "static", 6) != 0) return SQE_R_BADFILE; + while(true) { ret = skip_comments(frs); if(ret == 1) continue; else if(!ret) break; else return SQE_R_BADFILE; } + if(!frs.getS(str, 256)) return SQE_R_BADFILE; + while(true) { ret = skip_comments(frs); if(ret == 1) continue; else if(!ret) break; else return SQE_R_BADFILE; } + + sscanf(str, "\"%d %d %d %d", &image.w, &image.h, &numcolors, (int*)&cpp); + + if(!numcolors) + return SQE_R_BADFILE; + + s8 name[KEY_LENGTH], c[3], color[10], *found; + + for(i = 0;i < numcolors;i++) + { + if(!frs.getS(str, 256)) return SQE_R_BADFILE; + + if(*str != '\"') + { + numcolors = i; + break; + } + + strcpy(name, ""); + + found = str; + found++; + + strncpy(name, found, cpp); + name[cpp] = 0; + + sscanf(found+cpp+1, "%s %s", c, color); + + found = strstr(color, "\""); + if(found) *found = 0; + + file[name] = hex2rgb(color); + } + + if(!numcolors) + return SQE_R_BADFILE; + + while(true) { ret = skip_comments(frs); if(ret == 1) continue; else if(!ret) break; else return SQE_R_BADFILE; } + + image.bpp = 24; + image.hasalpha = true; + image.passes = 1; + image.compression = "-"; + image.colorspace = "Indexed RGBA"; + + 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); + + const s32 bpl = im->w * (cpp+2); + s32 i, j; + s8 line[bpl], key[KEY_LENGTH]; + + memset(key, 0, sizeof(key)); + memset(line, 0, sizeof(line)); + + switch(im->bpp) + { + case 24: + { + RGBA rgba; + bool f; + + i = j = 0; + if(!frs.getS(line, sizeof(line))) return SQE_R_BADFILE; + + while(line[i++] != '\"') // skip spaces + {} + + for(;j < im->w;j++) + { + strncpy(key, line+i, cpp); + i += cpp; + + std::map<std::string, RGBA>::const_iterator it = file.find(key); + + f = (it != file.end()); + + if(!f) + { + cerr << "XPM decoder: WARNING: color \"" << key << "\" not found, assuming transparent instead" << endl; + memset(&rgba, 0, sizeof(RGBA)); + } + else + rgba = (*it).second; + + memcpy(scan+j, &rgba, sizeof(RGBA)); + } + } + break; + } + + return SQE_OK; +} + +void fmt_codec::read_close() +{ + frs.close(); + + finfo.meta.clear(); + finfo.image.clear(); + + file.clear(); +} + +void fmt_codec::fillmap() +{ + s8 name[80]; + s32 r, g, b, a; + + std::ifstream rgb_fstream; + + rgb_fstream.open(SQ_RGBMAP, ios::in); + + if(!rgb_fstream.good()) + { + std::cerr << "libkls_xpm.so: rgbmap not found" << std::endl; + return; + } + + typedef std::pair<std::string, RGBA> xpm_pair; + + while(rgb_fstream.good()) + { + rgb_fstream >> name >> r >> g >> b >> a; + + named.insert(xpm_pair(name, RGBA(r,g,b,a))); + } + + rgb_fstream.close(); +} + +#include "fmt_codec_cd_func.h" |