lib/devices/file.c

   1 /* gfxdevice_file.cc
   2
   3    Part of the swftools package.
   4
   5    Copyright (c) 2005 Matthias Kramm <kramm@quiss.org>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  20
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #ifndef WIN32
  24 #include <unistd.h>
  25 #endif
  26 #include <string.h>
  27 #include <memory.h>
  28 #include "../gfxdevice.h"
  29
  30 typedef struct _internal {
  31     char*filename;
  32     FILE*fi;
  33 } internal_t;
  34
  35 int file_setparameter(struct _gfxdevice*dev, const char*key, const char*value)
  36 {
  37     internal_t*i = (internal_t*)dev->internal;
  38     fprintf(i->fi, "setparameter %s=%s\n", key, value);
  39     return 1;
  40 }
  41
  42 void file_startpage(struct _gfxdevice*dev, int width, int height)
  43 {
  44     internal_t*i = (internal_t*)dev->internal;
  45     fprintf(i->fi, "startpage %d %d\n", width, height);
  46 }
  47
  48 static void dumpline(FILE*fi, gfxline_t*line)
  49 {
  50     while(line) {
  51         if(line->type == gfx_moveTo) {
  52             fprintf(fi, "\tmoveTo %f %f\n", line->x, line->y);
  53         } else if(line->type == gfx_lineTo) {
  54             fprintf(fi, "\tlineTo %f %f\n", line->x, line->y);
  55         } else if(line->type == gfx_splineTo) {
  56             fprintf(fi, "\tsplineTo %f %f %f %f\n", line->sx, line->sy, line->x, line->y);
  57         }
  58         line = line->next;
  59     }
  60 }
  61
  62 static void dumpmatrix (FILE*fi, gfxmatrix_t*matrix)
  63 {
  64     fprintf(fi, "| %5.2f %5.2f %5.2f\n", matrix->m00, matrix->m10, matrix->tx);
  65     fprintf(fi, "| %5.2f %5.2f %5.2f\n", matrix->m01, matrix->m11, matrix->ty);
  66 }
  67
  68 static void dumpgradient (FILE*fi, gfxgradient_t*gradient)
  69 {
  70     while(gradient) {
  71         fprintf(fi, "pos %f: %02x%02x%02x%02x\n", gradient->pos, gradient->color.r, gradient->color.g, gradient->color.b, gradient->color.a);
  72         gradient = gradient->next;
  73     }
  74 }
  75
  76 void file_startclip(struct _gfxdevice*dev, gfxline_t*line)
  77 {
  78     internal_t*i = (internal_t*)dev->internal;
  79     fprintf(i->fi, "startclip\n");
  80     dumpline(i->fi, line);
  81 }
  82
  83 void file_endclip(struct _gfxdevice*dev)
  84 {
  85     internal_t*i = (internal_t*)dev->internal;
  86     fprintf(i->fi, "endclip\n");
  87 }
  88
  89 void file_stroke(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
  90 {
  91     internal_t*i = (internal_t*)dev->internal;
  92     char* jointTypes[] = {"joinMiter", "joinRound", "joinBevel"};
  93     char* capTypes[] = {"capButt", "capRound", "capSquare"};
  94
  95     fprintf(i->fi, "stroke %f %f %s %s %02x%02x%02x%02x\n", width, miterLimit, capTypes[cap_style], jointTypes[joint_style],
  96                 color->r, color->g, color->b, color->a
  97             );
  98     dumpline(i->fi, line);
  99 }
 100
 101 void file_fill(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color)
 102 {
 103     internal_t*i = (internal_t*)dev->internal;
 104     fprintf(i->fi, "fill %02x%02x%02x%02x\n", color->r, color->g, color->b, color->a);
 105     dumpline(i->fi, line);
 106 }
 107
 108 void file_fillbitmap(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform)
 109 {
 110     internal_t*i = (internal_t*)dev->internal;
 111     fprintf(i->fi, "fillbitmap\n");
 112     dumpmatrix(i->fi, matrix);
 113     dumpline(i->fi, line);
 114 }
 115
 116 void file_fillgradient(struct _gfxdevice*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix)
 117 {
 118     internal_t*i = (internal_t*)dev->internal;
 119     fprintf(i->fi, "fillgradient\n");
 120     dumpmatrix(i->fi, matrix);
 121     dumpgradient(i->fi, gradient);
 122     dumpline(i->fi, line);
 123 }
 124
 125 void file_addfont(struct _gfxdevice*dev, gfxfont_t*font)
 126 {
 127     internal_t*i = (internal_t*)dev->internal;
 128     fprintf(i->fi, "addfont %s\n", font->id);
 129 }
 130
 131 void file_drawchar(struct _gfxdevice*dev, gfxfont_t*font, int glyph, gfxcolor_t*color, gfxmatrix_t*matrix)
 132 {
 133     internal_t*i = (internal_t*)dev->internal;
 134 }
 135
 136 void file_drawlink(struct _gfxdevice*dev, gfxline_t*line, const char*action, const char*text)
 137 {
 138     internal_t*i = (internal_t*)dev->internal;
 139     fprintf(i->fi, "drawlink %s\n", action);
 140     dumpline(i->fi, line);
 141 }
 142
 143 void file_endpage(struct _gfxdevice*dev)
 144 {
 145     internal_t*i = (internal_t*)dev->internal;
 146     fprintf(i->fi, "endpage\n");
 147 }
 148
 149 typedef struct gfxresult_internal
 150 {
 151     FILE*fi;
 152     char*filename;
 153 } gfxresult_internal_t;
 154
 155 void fileresult_destroy(struct _gfxresult*gfx)
 156 {
 157     gfxresult_internal_t*i = (gfxresult_internal_t*)gfx->internal;
 158     unlink(i->filename);
 159     free(i->filename);i->filename = 0;
 160 }
 161
 162 int fileresult_save(struct _gfxresult*gfx, const char*filename)
 163 {
 164     gfxresult_internal_t*i = (gfxresult_internal_t*)gfx->internal;
 165     FILE*fi,*fo;
 166     fi = fopen(i->filename, "rb");
 167     if(!fi) {
 168         perror(i->filename);
 169         return 0;
 170     }
 171     fo = fopen(filename, "wb");
 172     if(!fo) {
 173         perror(filename);
 174         return 0;
 175     }
 176
 177     char buf[4096];
 178     while(!feof(fi)) {
 179         int l = fread(buf, 1, 4096, fi);
 180         if(l>0) {
 181             fwrite(buf, 1, l, fo);
 182         } else {
 183             break;
 184         }
 185     }
 186
 187     fclose(fi);
 188     fclose(fo);
 189     return 0;
 190 }
 191
 192 void* fileresult_get(struct _gfxresult*gfx, const char*name)
 193 {
 194     return 0;
 195 }
 196
 197 gfxresult_t* file_finish(struct _gfxdevice*dev)
 198 {
 199     internal_t*i = (internal_t*)dev->internal;
 200     char*filename = strdup(i->filename);
 201     gfxresult_t*result = (gfxresult_t*)malloc(sizeof(gfxresult_t));
 202     fclose(i->fi);
 203     i->fi = 0;
 204     if(i->filename) {
 205         free(i->filename);
 206         i->filename = 0;
 207     }
 208     free(dev->internal);
 209     dev->internal = 0;
 210
 211     memset(result, 0, sizeof(gfxresult_t));
 212     result->save = fileresult_save;
 213     result->get = fileresult_get;
 214     result->destroy = fileresult_destroy;
 215     result->internal = malloc(sizeof(gfxresult_internal_t));
 216     ((gfxresult_internal_t*)result->internal)->filename = filename;
 217
 218     return result;
 219 }
 220
 221 void gfxdevice_file_init(gfxdevice_t*dev, char*filename)
 222 {
 223     internal_t*i = (internal_t*)malloc(sizeof(internal_t));
 224     memset(dev, 0, sizeof(gfxdevice_t));
 225
 226     dev->name = "file";
 227
 228     dev->internal = i;
 229
 230     dev->setparameter = file_setparameter;
 231     dev->startpage = file_startpage;
 232     dev->startclip = file_startclip;
 233     dev->endclip = file_endclip;
 234     dev->stroke = file_stroke;
 235     dev->fill = file_fill;
 236     dev->fillbitmap = file_fillbitmap;
 237     dev->fillgradient = file_fillgradient;
 238     dev->addfont = file_addfont;
 239     dev->drawchar = file_drawchar;
 240     dev->drawlink = file_drawlink;
 241     dev->endpage = file_endpage;
 242     dev->finish = file_finish;
 243
 244     i->fi = fopen(filename, "wb");
 245     i->filename = strdup(filename);
 246     if(!i->fi) {
 247         fprintf(stderr, "Couldn't open file %s\n", filename);
 248         exit(1);
 249     }
 250 }
 251