summaryrefslogtreecommitdiffstats
path: root/plug-ins/file-ico/ico.c
blob: c74aecd60a3f6f435eadef4c2fff4cb7098a8d3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
 *
 * GIMP Plug-in for Windows Icon files.
 * Copyright (C) 2002 Christian Kreibich <christian@whoop.org>.
 *
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * 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, see <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <string.h>

#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>

/* #define ICO_DBG */

#include "ico.h"
#include "ico-load.h"
#include "ico-save.h"

#include "libgimp/stdplugins-intl.h"

#define LOAD_PROC        "file-ico-load"
#define LOAD_THUMB_PROC  "file-ico-load-thumb"
#define SAVE_PROC        "file-ico-save"


static void   query (void);
static void   run   (const gchar      *name,
                     gint              nparams,
                     const GimpParam  *param,
                     gint             *nreturn_vals,
                     GimpParam       **return_vals);


const GimpPlugInInfo PLUG_IN_INFO =
{
  NULL,  /* init_proc  */
  NULL,  /* quit_proc  */
  query, /* query_proc */
  run,   /* run_proc   */
};


MAIN ()


static void
query (void)
{
  static const GimpParamDef load_args[] =
  {
    { GIMP_PDB_INT32,    "run-mode",     "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
    { GIMP_PDB_STRING,   "filename",     "The name of the file to load" },
    { GIMP_PDB_STRING,   "raw-filename", "The name entered"             }
  };
  static const GimpParamDef load_return_vals[] =
  {
    { GIMP_PDB_IMAGE, "image", "Output image" },
  };

  static const GimpParamDef thumb_args[] =
  {
    { GIMP_PDB_STRING, "filename",     "The name of the file to load"  },
    { GIMP_PDB_INT32,  "thumb-size",   "Preferred thumbnail size"      }
  };
  static const GimpParamDef thumb_return_vals[] =
  {
    { GIMP_PDB_IMAGE,  "image",        "Thumbnail image"               },
    { GIMP_PDB_INT32,  "image-width",  "Width of full-sized image"     },
    { GIMP_PDB_INT32,  "image-height", "Height of full-sized image"    }
  };

  static const GimpParamDef save_args[] =
  {
    { GIMP_PDB_INT32,    "run-mode",     "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
    { GIMP_PDB_IMAGE,    "image",        "Input image" },
    { GIMP_PDB_DRAWABLE, "drawable",     "Drawable to save" },
    { GIMP_PDB_STRING,   "filename",     "The name of the file to save the image in" },
    { GIMP_PDB_STRING,   "raw-filename", "The name entered" },
  };

  gimp_install_procedure (LOAD_PROC,
                          "Loads files of Windows ICO file format",
                          "Loads files of Windows ICO file format",
                          "Christian Kreibich <christian@whoop.org>",
                          "Christian Kreibich <christian@whoop.org>",
                          "2002",
                          N_("Microsoft Windows icon"),
                          NULL,
                          GIMP_PLUGIN,
                          G_N_ELEMENTS (load_args),
                          G_N_ELEMENTS (load_return_vals),
                          load_args, load_return_vals);

  gimp_register_file_handler_mime (LOAD_PROC, "image/x-ico");
  gimp_register_magic_load_handler (LOAD_PROC,
                                    "ico",
                                    "",
                                    "0,string,\\000\\001\\000\\000,0,string,\\000\\002\\000\\000");

  gimp_install_procedure (LOAD_THUMB_PROC,
                          "Loads a preview from an Windows ICO file",
                          "",
                          "Dom Lachowicz, Sven Neumann",
                          "Sven Neumann <sven@gimp.org>",
                          "2005",
                          NULL,
                          NULL,
                          GIMP_PLUGIN,
                          G_N_ELEMENTS (thumb_args),
                          G_N_ELEMENTS (thumb_return_vals),
                          thumb_args, thumb_return_vals);

  gimp_register_thumbnail_loader (LOAD_PROC, LOAD_THUMB_PROC);

  gimp_install_procedure (SAVE_PROC,
                          "Saves files in Windows ICO file format",
                          "Saves files in Windows ICO file format",
                          "Christian Kreibich <christian@whoop.org>",
                          "Christian Kreibich <christian@whoop.org>",
                          "2002",
                          N_("Microsoft Windows icon"),
                          "*",
                          GIMP_PLUGIN,
                          G_N_ELEMENTS (save_args), 0,
                          save_args, NULL);

  gimp_register_file_handler_mime (SAVE_PROC, "image/x-ico");
  gimp_register_save_handler (SAVE_PROC, "ico", "");
}

static void
run (const gchar      *name,
     gint              nparams,
     const GimpParam  *param,
     gint             *nreturn_vals,
     GimpParam       **return_vals)
{
  static GimpParam   values[4];
  GimpRunMode        run_mode;
  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
  GimpExportReturn   export = GIMP_EXPORT_CANCEL;
  GError            *error  = NULL;

  INIT_I18N ();
  gegl_init (NULL, NULL);

  run_mode = param[0].data.d_int32;

  *nreturn_vals = 1;
  *return_vals  = values;

  values[0].type          = GIMP_PDB_STATUS;
  values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;

  if (strcmp (name, LOAD_PROC) == 0)
    {
      switch (run_mode)
        {
        case GIMP_RUN_INTERACTIVE:
          break;

        case GIMP_RUN_NONINTERACTIVE:
          if (nparams != 3)
            status = GIMP_PDB_CALLING_ERROR;
          break;

        default:
          break;
        }

      if (status == GIMP_PDB_SUCCESS)
        {
          gint32 image_ID;

          image_ID = ico_load_image (param[1].data.d_string, &error);
          if (image_ID != -1)
            {
              *nreturn_vals = 2;
              values[1].type         = GIMP_PDB_IMAGE;
              values[1].data.d_image = image_ID;
            }
          else
            {
              status = GIMP_PDB_EXECUTION_ERROR;
            }
        }
    }
  else if (strcmp (name, LOAD_THUMB_PROC) == 0)
    {
      if (nparams < 2)
        {
          status = GIMP_PDB_CALLING_ERROR;
        }
      else
        {
          const gchar *filename = param[0].data.d_string;
          gint         width    = param[1].data.d_int32;
          gint         height   = param[1].data.d_int32;
          gint32       image_ID;

          image_ID = ico_load_thumbnail_image (filename,
                                               &width, &height, &error);

          if (image_ID != -1)
            {
              *nreturn_vals = 4;

              values[1].type         = GIMP_PDB_IMAGE;
              values[1].data.d_image = image_ID;
              values[2].type         = GIMP_PDB_INT32;
              values[2].data.d_int32 = width;
              values[3].type         = GIMP_PDB_INT32;
              values[3].data.d_int32 = height;
            }
          else
            {
              status = GIMP_PDB_EXECUTION_ERROR;
            }
        }
    }
  else if (strcmp (name, SAVE_PROC) == 0)
    {
      gchar *file_name;
      gint32 image_ID;

      image_ID    = param[1].data.d_int32;
      file_name   = param[3].data.d_string;

      switch (run_mode)
        {
        case GIMP_RUN_INTERACTIVE:
          break;

        case GIMP_RUN_NONINTERACTIVE:
          /*  Make sure all the arguments are there!  */
          if (nparams < 5)
            status = GIMP_PDB_CALLING_ERROR;
          break;

        case GIMP_RUN_WITH_LAST_VALS:
          break;

        default:
          break;
        }

      if (status == GIMP_PDB_SUCCESS)
        {
          status = ico_save_image (file_name, image_ID, run_mode, &error);
        }

      if (export == GIMP_EXPORT_EXPORT)
        gimp_image_delete (image_ID);
    }
  else
    {
      status = GIMP_PDB_CALLING_ERROR;
    }

  if (status != GIMP_PDB_SUCCESS && error)
    {
      *nreturn_vals = 2;
      values[1].type          = GIMP_PDB_STRING;
      values[1].data.d_string = error->message;
    }

  values[0].data.d_status = status;
}


gint
ico_rowstride (gint width,
               gint bpp)
{
  switch (bpp)
    {
    case 1:
      if ((width % 32) == 0)
        return width / 8;
      else
        return 4 * (width/32 + 1);
      break;

    case 4:
      if ((width % 8) == 0)
        return width / 2;
      else
        return 4 * (width/8 + 1);
      break;

    case 8:
      if ((width % 4) == 0)
        return width;
      else
        return 4 * (width/4 + 1);
      break;

    case 24:
      if (((width*3) % 4) == 0)
        return width * 3;
      else
        return 4 * (width*3/4+1);

    case 32:
      return width * 4;

    default:
      g_warning ("invalid bitrate: %d\n", bpp);
      g_assert_not_reached ();
      return width * (bpp/8);
    }
}

guint8 *
ico_alloc_map (gint  width,
               gint  height,
               gint  bpp,
               gint *length)
{
  gint    len = 0;
  guint8 *map = NULL;

  len = ico_rowstride (width, bpp) * height;

  *length = len;
  map = g_new0 (guint8, len);

  return map;
}