1 /*
2 * DDS GIMP plugin
3 *
4 * Copyright (C) 2004-2012 Shawn Kirst <skirst@gmail.com>,
5 * with parts (C) 2003 Arne Reuter <homepage@arnereuter.de> where specified.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (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 GNU
15 * 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; see the file COPYING. If not, write to
19 * the Free Software Foundation, 51 Franklin Street, Fifth Floor
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #include "config.h"
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <math.h>
29
30 #include <gtk/gtk.h>
31 #include <glib/gstdio.h>
32
33 #include <libgimp/gimp.h>
34 #include <libgimp/gimpui.h>
35
36 #include <libgimp/stdplugins-intl.h>
37
38 #include "ddsplugin.h"
39 #include "dds.h"
40 #include "dxt.h"
41 #include "mipmap.h"
42 #include "endian_rw.h"
43 #include "imath.h"
44 #include "color.h"
45
46
47 enum
48 {
49 COMBO_VALUE,
50 COMBO_STRING,
51 COMBO_SENSITIVE
52 };
53
54
55 static gint save_dialog (gint32 image_id,
56 gint32 drawable);
57 static void save_dialog_response (GtkWidget *widget,
58 gint response_id,
59 gpointer data);
60 static gboolean write_image (FILE *fp,
61 gint32 image_id,
62 gint32 drawable_id);
63
64
65 static gboolean runme = FALSE;
66
67 static const char *cubemap_face_names[4][6] =
68 {
69 {
70 "positive x", "negative x",
71 "positive y", "negative y",
72 "positive z", "negative z"
73 },
74 {
75 "pos x", "neg x",
76 "pos y", "neg y",
77 "pos z", "neg z",
78 },
79 {
80 "+x", "-x",
81 "+y", "-y",
82 "+z", "-z"
83 },
84 {
85 "right", "left",
86 "top", "bottom",
87 "back", "front"
88 }
89 };
90
91 static gint cubemap_faces[6];
92 static gboolean is_cubemap = FALSE;
93 static gboolean is_volume = FALSE;
94 static gboolean is_array = FALSE;
95 static gboolean is_mipmap_chain_valid = FALSE;
96
97 static GtkWidget *compress_opt;
98 static GtkWidget *format_opt;
99 static GtkWidget *mipmap_opt;
100 static GtkWidget *mipmap_filter_opt;
101 static GtkWidget *mipmap_wrap_opt;
102 static GtkWidget *srgb_chk;
103 static GtkWidget *gamma_chk;
104 static GtkWidget *gamma_spin;
105 static GtkWidget *pm_chk;
106 static GtkWidget *alpha_coverage_chk;
107 static GtkWidget *alpha_test_threshold_spin;
108
109 typedef struct string_value_s
110 {
111 gint value;
112 gchar *string;
113 } string_value_t;
114
115 static string_value_t compression_strings[] =
116 {
117 { DDS_COMPRESS_NONE, "None" },
118 { DDS_COMPRESS_BC1, "BC1 / DXT1" },
119 { DDS_COMPRESS_BC2, "BC2 / DXT3" },
120 { DDS_COMPRESS_BC3, "BC3 / DXT5" },
121 { DDS_COMPRESS_BC3N, "BC3nm / DXT5nm" },
122 { DDS_COMPRESS_BC4, "BC4 / ATI1 (3Dc+)" },
123 { DDS_COMPRESS_BC5, "BC5 / ATI2 (3Dc)" },
124 { DDS_COMPRESS_RXGB, "RXGB (DXT5)" },
125 { DDS_COMPRESS_AEXP, "Alpha Exponent (DXT5)" },
126 { DDS_COMPRESS_YCOCG, "YCoCg (DXT5)" },
127 { DDS_COMPRESS_YCOCGS, "YCoCg scaled (DXT5)" },
128 { -1, 0}
129 };
130
131 static string_value_t format_strings[] =
132 {
133 { DDS_FORMAT_DEFAULT, "Default" },
134 { DDS_FORMAT_RGB8, "RGB8" },
135 { DDS_FORMAT_RGBA8, "RGBA8" },
136 { DDS_FORMAT_BGR8, "BGR8" },
137 { DDS_FORMAT_ABGR8, "ABGR8" },
138 { DDS_FORMAT_R5G6B5, "R5G6B5" },
139 { DDS_FORMAT_RGBA4, "RGBA4" },
140 { DDS_FORMAT_RGB5A1, "RGB5A1" },
141 { DDS_FORMAT_RGB10A2, "RGB10A2" },
142 { DDS_FORMAT_R3G3B2, "R3G3B2" },
143 { DDS_FORMAT_A8, "A8" },
144 { DDS_FORMAT_L8, "L8" },
145 { DDS_FORMAT_L8A8, "L8A8" },
146 { DDS_FORMAT_AEXP, "AExp" },
147 { DDS_FORMAT_YCOCG, "YCoCg" },
148 { -1, 0}
149 };
150
151 static string_value_t mipmap_strings[] =
152 {
153 { DDS_MIPMAP_NONE, "No mipmaps" },
154 { DDS_MIPMAP_GENERATE, "Generate mipmaps" },
155 { DDS_MIPMAP_EXISTING, "Use existing mipmaps" },
156 { -1, 0}
157 };
158
159 static string_value_t mipmap_filter_strings[] =
160 {
161 { DDS_MIPMAP_FILTER_DEFAULT, "Default" },
162 { DDS_MIPMAP_FILTER_NEAREST, "Nearest" },
163 { DDS_MIPMAP_FILTER_BOX, "Box" },
164 { DDS_MIPMAP_FILTER_TRIANGLE, "Triangle" },
165 { DDS_MIPMAP_FILTER_QUADRATIC, "Quadratic" },
166 { DDS_MIPMAP_FILTER_BSPLINE, "B-Spline" },
167 { DDS_MIPMAP_FILTER_MITCHELL, "Mitchell" },
168 { DDS_MIPMAP_FILTER_LANCZOS, "Lanczos" },
169 { DDS_MIPMAP_FILTER_KAISER, "Kaiser" },
170 { -1, 0}
171 };
172
173 static string_value_t mipmap_wrap_strings[] =
174 {
175 { DDS_MIPMAP_WRAP_DEFAULT, "Default" },
176 { DDS_MIPMAP_WRAP_MIRROR, "Mirror" },
177 { DDS_MIPMAP_WRAP_REPEAT, "Repeat" },
178 { DDS_MIPMAP_WRAP_CLAMP, "Clamp" },
179 { -1, 0}
180 };
181
182 static string_value_t save_type_strings[] =
183 {
184 { DDS_SAVE_SELECTED_LAYER, "Image / Selected layer" },
185 { DDS_SAVE_CUBEMAP, "As cube map" },
186 { DDS_SAVE_VOLUMEMAP, "As volume map" },
187 { DDS_SAVE_ARRAY, "As texture array" },
188 { -1, 0}
189 };
190
191 static struct
192 {
193 int format;
194 DXGI_FORMAT dxgi_format;
195 int bpp;
196 int alpha;
197 unsigned int rmask;
198 unsigned int gmask;
199 unsigned int bmask;
200 unsigned int amask;
201 } format_info[] =
202 {
203 { DDS_FORMAT_RGB8, DXGI_FORMAT_UNKNOWN, 3, 0, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000},
204 { DDS_FORMAT_RGBA8, DXGI_FORMAT_B8G8R8A8_UNORM, 4, 1, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000},
205 { DDS_FORMAT_BGR8, DXGI_FORMAT_UNKNOWN, 3, 0, 0x000000ff, 0x0000ff00, 0x00ff0000, 0x00000000},
206 { DDS_FORMAT_ABGR8, DXGI_FORMAT_R8G8B8A8_UNORM, 4, 1, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000},
207 { DDS_FORMAT_R5G6B5, DXGI_FORMAT_B5G6R5_UNORM, 2, 0, 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000},
208 { DDS_FORMAT_RGBA4, DXGI_FORMAT_B4G4R4A4_UNORM, 2, 1, 0x00000f00, 0x000000f0, 0x0000000f, 0x0000f000},
209 { DDS_FORMAT_RGB5A1, DXGI_FORMAT_B5G5R5A1_UNORM, 2, 1, 0x00007c00, 0x000003e0, 0x0000001f, 0x00008000},
210 { DDS_FORMAT_RGB10A2, DXGI_FORMAT_R10G10B10A2_UNORM, 4, 1, 0x000003ff, 0x000ffc00, 0x3ff00000, 0xc0000000},
211 { DDS_FORMAT_R3G3B2, DXGI_FORMAT_UNKNOWN, 1, 0, 0x000000e0, 0x0000001c, 0x00000003, 0x00000000},
212 { DDS_FORMAT_A8, DXGI_FORMAT_A8_UNORM, 1, 0, 0x00000000, 0x00000000, 0x00000000, 0x000000ff},
213 { DDS_FORMAT_L8, DXGI_FORMAT_R8_UNORM, 1, 0, 0x000000ff, 0x000000ff, 0x000000ff, 0x00000000},
214 { DDS_FORMAT_L8A8, DXGI_FORMAT_UNKNOWN, 2, 1, 0x000000ff, 0x000000ff, 0x000000ff, 0x0000ff00},
215 { DDS_FORMAT_AEXP, DXGI_FORMAT_B8G8R8A8_UNORM, 4, 1, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000},
216 { DDS_FORMAT_YCOCG, DXGI_FORMAT_B8G8R8A8_UNORM, 4, 1, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000}
217 };
218
219
220 static gboolean
check_mipmaps(gint32 image_id,gint savetype)221 check_mipmaps (gint32 image_id,
222 gint savetype)
223 {
224 gint *layers;
225 gint num_layers;
226 gint i, j, w, h, mipw, miph;
227 gint num_mipmaps;
228 gint num_surfaces = 0;
229 gint min_surfaces = 1;
230 gint max_surfaces = 1;
231 gboolean valid = TRUE;
232 GimpImageType type;
233
234 /* not handling volume maps for the moment... */
235 if (savetype == DDS_SAVE_VOLUMEMAP)
236 return 0;
237
238 if (savetype == DDS_SAVE_CUBEMAP)
239 {
240 min_surfaces = 6;
241 max_surfaces = 6;
242 }
243 else if (savetype == DDS_SAVE_ARRAY)
244 {
245 min_surfaces = 2;
246 max_surfaces = INT_MAX;
247 }
248
249 layers = gimp_image_get_layers (image_id, &num_layers);
250
251 w = gimp_image_width (image_id);
252 h = gimp_image_height (image_id);
253
254 num_mipmaps = get_num_mipmaps (w, h);
255
256 type = gimp_drawable_type (layers[0]);
257
258 for (i = 0; i < num_layers; ++i)
259 {
260 if (type != gimp_drawable_type (layers[i]))
261 return 0;
262
263 if ((gimp_drawable_width (layers[i]) == w) &&
264 (gimp_drawable_height (layers[i]) == h))
265 ++num_surfaces;
266 }
267
268 if ((num_surfaces < min_surfaces) ||
269 (num_surfaces > max_surfaces) ||
270 (num_layers != (num_surfaces * num_mipmaps)))
271 return 0;
272
273 for (i = 0; valid && i < num_layers; i += num_mipmaps)
274 {
275 if ((gimp_drawable_width (layers[i]) != w) ||
276 (gimp_drawable_height (layers[i]) != h))
277 {
278 valid = FALSE;
279 break;
280 }
281
282 for (j = 1; j < num_mipmaps; ++j)
283 {
284 mipw = w >> j;
285 miph = h >> j;
286 if (mipw < 1) mipw = 1;
287 if (miph < 1) miph = 1;
288 if ((gimp_drawable_width (layers[i + j]) != mipw) ||
289 (gimp_drawable_height (layers[i + j]) != miph))
290 {
291 valid = FALSE;
292 break;
293 }
294 }
295 }
296
297 return valid;
298 }
299
300 static gboolean
check_cubemap(gint32 image_id)301 check_cubemap (gint32 image_id)
302 {
303 gint *layers;
304 gint num_layers;
305 gboolean cubemap = TRUE;
306 gint i, j, k, w, h;
307 gchar *layer_name;
308 GimpImageType type;
309
310 layers = gimp_image_get_layers (image_id, &num_layers);
311
312 if (num_layers < 6)
313 return FALSE;
314
315 /* check for a valid cubemap with mipmap layers */
316 if (num_layers > 6)
317 {
318 /* check that mipmap layers are in order for a cubemap */
319 if (! check_mipmaps (image_id, DDS_SAVE_CUBEMAP))
320 return FALSE;
321
322 /* invalidate cubemap faces */
323 for (i = 0; i < 6; ++i)
324 cubemap_faces[i] = -1;
325
326 /* find the mipmap level 0 layers */
327 w = gimp_image_width (image_id);
328 h = gimp_image_height (image_id);
329
330 for (i = 0; i < num_layers; ++i)
331 {
332 if ((gimp_drawable_width (layers[i]) != w) ||
333 (gimp_drawable_height (layers[i]) != h))
334 continue;
335
336 layer_name = (char*)gimp_item_get_name (layers[i]);
337 for (j = 0; j < 6; ++j)
338 {
339 for (k = 0; k < 4; ++k)
340 {
341 if (strstr (layer_name, cubemap_face_names[k][j]))
342 {
343 if (cubemap_faces[j] == -1)
344 {
345 cubemap_faces[j] = layers[i];
346 break;
347 }
348 }
349 }
350 }
351 }
352
353 /* check for 6 valid faces */
354 for (i = 0; i < 6; ++i)
355 {
356 if (cubemap_faces[i] == -1)
357 {
358 cubemap = FALSE;
359 break;
360 }
361 }
362
363 /* make sure they are all the same type */
364 if (cubemap)
365 {
366 type = gimp_drawable_type (cubemap_faces[0]);
367 for (i = 1; i < 6 && cubemap; ++i)
368 {
369 if (gimp_drawable_type (cubemap_faces[i]) != type)
370 cubemap = FALSE;
371 }
372 }
373 }
374
375 if (num_layers == 6)
376 {
377 /* invalidate cubemap faces */
378 for (i = 0; i < 6; ++i)
379 cubemap_faces[i] = -1;
380
381 for (i = 0; i < 6; ++i)
382 {
383 layer_name = (char*)gimp_item_get_name (layers[i]);
384 for (j = 0; j < 6; ++j)
385 {
386 for (k = 0; k < 4; ++k)
387 {
388 if (strstr (layer_name, cubemap_face_names[k][j]))
389 {
390 if (cubemap_faces[j] == -1)
391 {
392 cubemap_faces[j] = layers[i];
393 break;
394 }
395 }
396 }
397 }
398 }
399
400 /* check for 6 valid faces */
401 for (i = 0; i < 6; ++i)
402 {
403 if (cubemap_faces[i] == -1)
404 {
405 cubemap = FALSE;
406 break;
407 }
408 }
409
410 /* make sure they are all the same size */
411 if (cubemap)
412 {
413 w = gimp_drawable_width (cubemap_faces[0]);
414 h = gimp_drawable_height (cubemap_faces[0]);
415
416 for (i = 1; i < 6 && cubemap; ++i)
417 {
418 if ((gimp_drawable_width (cubemap_faces[i]) != w) ||
419 (gimp_drawable_height (cubemap_faces[i]) != h))
420 cubemap = FALSE;
421 }
422 }
423
424 /* make sure they are all the same type */
425 if (cubemap)
426 {
427 type = gimp_drawable_type (cubemap_faces[0]);
428 for (i = 1; i < 6 && cubemap; ++i)
429 {
430 if (gimp_drawable_type (cubemap_faces[i]) != type)
431 cubemap = FALSE;
432 }
433 }
434 }
435
436 return cubemap;
437 }
438
439 static gboolean
check_volume(gint32 image_id)440 check_volume (gint32 image_id)
441 {
442 gint *layers;
443 gint num_layers;
444 gboolean volume = FALSE;
445 gint i, w, h;
446 GimpImageType type;
447
448 layers = gimp_image_get_layers (image_id, &num_layers);
449
450 if (num_layers > 1)
451 {
452 volume = TRUE;
453
454 /* make sure all layers are the same size */
455 w = gimp_drawable_width (layers[0]);
456 h = gimp_drawable_height (layers[0]);
457
458 for (i = 1; i < num_layers && volume; ++i)
459 {
460 if ((gimp_drawable_width (layers[i]) != w) ||
461 (gimp_drawable_height (layers[i]) != h))
462 volume = FALSE;
463 }
464
465 if (volume)
466 {
467 /* make sure all layers are the same type */
468 type = gimp_drawable_type (layers[0]);
469 for (i = 1; i < num_layers && volume; ++i)
470 {
471 if (gimp_drawable_type (layers[i]) != type)
472 volume = FALSE;
473 }
474 }
475 }
476
477 return volume;
478 }
479
480 static gboolean
check_array(gint32 image_id)481 check_array (gint32 image_id)
482 {
483 gint *layers;
484 gint num_layers;
485 gboolean array = FALSE;
486 gint i, w, h;
487 GimpImageType type;
488
489 if (check_mipmaps (image_id, DDS_SAVE_ARRAY))
490 return 1;
491
492 layers = gimp_image_get_layers (image_id, &num_layers);
493
494 if (num_layers > 1)
495 {
496 array = TRUE;
497
498 /* make sure all layers are the same size */
499 w = gimp_drawable_width (layers[0]);
500 h = gimp_drawable_height (layers[0]);
501
502 for (i = 1; i < num_layers && array; ++i)
503 {
504 if ((gimp_drawable_width (layers[i]) != w) ||
505 (gimp_drawable_height (layers[i]) != h))
506 array = FALSE;
507 }
508
509 if (array)
510 {
511 /* make sure all layers are the same type */
512 type = gimp_drawable_type (layers[0]);
513 for (i = 1; i < num_layers; ++i)
514 {
515 if (gimp_drawable_type (layers[i]) != type)
516 {
517 array = FALSE;
518 break;
519 }
520 }
521 }
522 }
523
524 return array;
525 }
526
527 static int
get_array_size(gint32 image_id)528 get_array_size (gint32 image_id)
529 {
530 gint *layers;
531 gint num_layers;
532 gint i, w, h;
533 gint elements = 0;
534
535 layers = gimp_image_get_layers (image_id, &num_layers);
536
537 w = gimp_image_width (image_id);
538 h = gimp_image_height (image_id);
539
540 for (i = 0; i < num_layers; ++i)
541 {
542 if ((gimp_drawable_width (layers[i]) == w) &&
543 (gimp_drawable_height (layers[i]) == h))
544 {
545 elements++;
546 }
547 }
548
549 return elements;
550 }
551
552 GimpPDBStatusType
write_dds(gchar * filename,gint32 image_id,gint32 drawable_id,gboolean interactive_dds)553 write_dds (gchar *filename,
554 gint32 image_id,
555 gint32 drawable_id,
556 gboolean interactive_dds)
557 {
558 FILE *fp;
559 gchar *tmp;
560 int rc = 0;
561
562 is_mipmap_chain_valid = check_mipmaps (image_id, dds_write_vals.savetype);
563
564 is_cubemap = check_cubemap (image_id);
565 is_volume = check_volume (image_id);
566 is_array = check_array (image_id);
567
568 if (interactive_dds)
569 {
570 if (! is_mipmap_chain_valid &&
571 dds_write_vals.mipmaps == DDS_MIPMAP_EXISTING)
572 dds_write_vals.mipmaps = DDS_MIPMAP_NONE;
573
574 if (! save_dialog (image_id, drawable_id))
575 return GIMP_PDB_CANCEL;
576 }
577 else
578 {
579 if (dds_write_vals.savetype == DDS_SAVE_CUBEMAP && ! is_cubemap)
580 {
581 g_message ("DDS: Cannot save image as cube map");
582 return GIMP_PDB_EXECUTION_ERROR;
583 }
584
585 if (dds_write_vals.savetype == DDS_SAVE_VOLUMEMAP && ! is_volume)
586 {
587 g_message ("DDS: Cannot save image as volume map");
588 return GIMP_PDB_EXECUTION_ERROR;
589 }
590
591 if (dds_write_vals.savetype == DDS_SAVE_VOLUMEMAP &&
592 dds_write_vals.compression != DDS_COMPRESS_NONE)
593 {
594 g_message ("DDS: Cannot save volume map with compression");
595 return GIMP_PDB_EXECUTION_ERROR;
596 }
597
598 if (dds_write_vals.mipmaps == DDS_MIPMAP_EXISTING &&
599 ! is_mipmap_chain_valid)
600 {
601 g_message ("DDS: Cannot save with existing mipmaps as the mipmap chain is incomplete");
602 return GIMP_PDB_EXECUTION_ERROR;
603 }
604 }
605
606 fp = g_fopen (filename, "wb");
607 if (fp == 0)
608 {
609 g_message ("Error opening %s", filename);
610 return GIMP_PDB_EXECUTION_ERROR;
611 }
612
613 if (strrchr (filename, '/'))
614 tmp = g_strdup_printf ("Saving %s:", strrchr (filename, '/') + 1);
615 else
616 tmp = g_strdup_printf ("Saving %s:", filename);
617 gimp_progress_init (tmp);
618 g_free (tmp);
619
620 rc = write_image (fp, image_id, drawable_id);
621
622 fclose (fp);
623
624 return rc ? GIMP_PDB_SUCCESS : GIMP_PDB_EXECUTION_ERROR;
625 }
626
627 static void
swap_rb(unsigned char * pixels,unsigned int n,int bpp)628 swap_rb (unsigned char *pixels,
629 unsigned int n,
630 int bpp)
631 {
632 unsigned int i;
633 unsigned char t;
634
635 for (i = 0; i < n; ++i)
636 {
637 t = pixels[bpp * i + 0];
638 pixels[bpp * i + 0] = pixels[bpp * i + 2];
639 pixels[bpp * i + 2] = t;
640 }
641 }
642
643 static void
alpha_exp(unsigned char * dst,int r,int g,int b,int a)644 alpha_exp (unsigned char *dst,
645 int r,
646 int g,
647 int b,
648 int a)
649 {
650 float ar, ag, ab, aa;
651
652 ar = (float)r / 255.0f;
653 ag = (float)g / 255.0f;
654 ab = (float)b / 255.0f;
655
656 aa = MAX (ar, MAX (ag, ab));
657
658 if (aa < 1e-04f)
659 {
660 dst[0] = b;
661 dst[1] = g;
662 dst[2] = r;
663 dst[3] = 255;
664 return;
665 }
666
667 ar /= aa;
668 ag /= aa;
669 ab /= aa;
670
671 r = (int)floorf (255.0f * ar + 0.5f);
672 g = (int)floorf (255.0f * ag + 0.5f);
673 b = (int)floorf (255.0f * ab + 0.5f);
674 a = (int)floorf (255.0f * aa + 0.5f);
675
676 dst[0] = MAX (0, MIN (255, b));
677 dst[1] = MAX (0, MIN (255, g));
678 dst[2] = MAX (0, MIN (255, r));
679 dst[3] = MAX (0, MIN (255, a));
680 }
681
682 static void
convert_pixels(unsigned char * dst,unsigned char * src,int format,int w,int h,int d,int bpp,unsigned char * palette,int mipmaps)683 convert_pixels (unsigned char *dst,
684 unsigned char *src,
685 int format,
686 int w,
687 int h,
688 int d,
689 int bpp,
690 unsigned char *palette,
691 int mipmaps)
692 {
693 unsigned int i, num_pixels;
694 unsigned char r, g, b, a;
695
696 if (d > 0)
697 num_pixels = get_volume_mipmapped_size (w, h, d, 1, 0, mipmaps, DDS_COMPRESS_NONE);
698 else
699 num_pixels = get_mipmapped_size (w, h, 1, 0, mipmaps, DDS_COMPRESS_NONE);
700
701 for (i = 0; i < num_pixels; ++i)
702 {
703 if (bpp == 1)
704 {
705 if (palette)
706 {
707 r = palette[3 * src[i] + 0];
708 g = palette[3 * src[i] + 1];
709 b = palette[3 * src[i] + 2];
710 }
711 else
712 r = g = b = src[i];
713
714 if (format == DDS_FORMAT_A8)
715 a = src[i];
716 else
717 a = 255;
718 }
719 else if (bpp == 2)
720 {
721 r = g = b = src[2 * i];
722 a = src[2 * i + 1];
723 }
724 else if (bpp == 3)
725 {
726 b = src[3 * i + 0];
727 g = src[3 * i + 1];
728 r = src[3 * i + 2];
729 a = 255;
730 }
731 else
732 {
733 b = src[4 * i + 0];
734 g = src[4 * i + 1];
735 r = src[4 * i + 2];
736 a = src[4 * i + 3];
737 }
738
739 switch (format)
740 {
741 case DDS_FORMAT_RGB8:
742 dst[3 * i + 0] = b;
743 dst[3 * i + 1] = g;
744 dst[3 * i + 2] = r;
745 break;
746 case DDS_FORMAT_RGBA8:
747 dst[4 * i + 0] = b;
748 dst[4 * i + 1] = g;
749 dst[4 * i + 2] = r;
750 dst[4 * i + 3] = a;
751 break;
752 case DDS_FORMAT_BGR8:
753 dst[3 * i + 0] = r;
754 dst[3 * i + 1] = g;
755 dst[3 * i + 2] = b;
756 break;
757 case DDS_FORMAT_ABGR8:
758 dst[4 * i + 0] = r;
759 dst[4 * i + 1] = g;
760 dst[4 * i + 2] = b;
761 dst[4 * i + 3] = a;
762 break;
763 case DDS_FORMAT_R5G6B5:
764 PUTL16(&dst[2 * i], pack_r5g6b5(r, g, b));
765 break;
766 case DDS_FORMAT_RGBA4:
767 PUTL16(&dst[2 * i], pack_rgba4(r, g, b, a));
768 break;
769 case DDS_FORMAT_RGB5A1:
770 PUTL16(&dst[2 * i], pack_rgb5a1(r, g, b, a));
771 break;
772 case DDS_FORMAT_RGB10A2:
773 PUTL32(&dst[4 * i], pack_rgb10a2(r, g, b, a));
774 break;
775 case DDS_FORMAT_R3G3B2:
776 dst[i] = pack_r3g3b2(r, g, b);
777 break;
778 case DDS_FORMAT_A8:
779 dst[i] = a;
780 break;
781 case DDS_FORMAT_L8:
782 dst[i] = rgb_to_luminance (r, g, b);
783 break;
784 case DDS_FORMAT_L8A8:
785 dst[2 * i + 0] = rgb_to_luminance (r, g, b);
786 dst[2 * i + 1] = a;
787 break;
788 case DDS_FORMAT_YCOCG:
789 dst[4 * i] = a;
790 RGB_to_YCoCg (&dst[4 * i], r, g, b);
791 break;
792 case DDS_FORMAT_AEXP:
793 alpha_exp (&dst[4 * i], r, g, b, a);
794 break;
795 default:
796 break;
797 }
798 }
799 }
800
801 static void
get_mipmap_chain(unsigned char * dst,int w,int h,int bpp,gint32 image_id,gint drawable_id)802 get_mipmap_chain (unsigned char *dst,
803 int w,
804 int h,
805 int bpp,
806 gint32 image_id,
807 gint drawable_id)
808 {
809 gint *layers, num_layers;
810 GeglBuffer *buffer;
811 const Babl *format = 0;
812 int i, idx = 0, offset, mipw, miph;
813
814 if (bpp == 1)
815 format = babl_format ("Y' u8");
816 else if (bpp == 2)
817 format = babl_format ("Y'A u8");
818 else if (bpp == 3)
819 format = babl_format ("R'G'B' u8");
820 else
821 format = babl_format ("R'G'B'A u8");
822
823 layers = gimp_image_get_layers (image_id, &num_layers);
824
825 for (i = 0; i < num_layers; ++i)
826 {
827 if (layers[i] == drawable_id)
828 {
829 idx = i;
830 break;
831 }
832 }
833
834 if (i == num_layers) return;
835
836 offset = 0;
837
838 while (get_next_mipmap_dimensions (&mipw, &miph, w, h))
839 {
840 buffer = gimp_drawable_get_buffer (layers[++idx]);
841
842 if ((gegl_buffer_get_width (buffer) != mipw) ||
843 (gegl_buffer_get_height (buffer) != miph))
844 {
845 g_object_unref (buffer);
846 return;
847 }
848
849 gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, mipw, miph), 1.0, format,
850 dst + offset, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
851 g_object_unref (buffer);
852
853 /* we need BGRX or BGRA */
854 if (bpp >= 3)
855 swap_rb (dst + offset, mipw * miph, bpp);
856
857 offset += (mipw * miph * bpp);
858 w = mipw;
859 h = miph;
860 }
861 }
862
863 static void
write_layer(FILE * fp,gint32 image_id,gint32 drawable_id,int w,int h,int bpp,int fmtbpp,int mipmaps)864 write_layer (FILE *fp,
865 gint32 image_id,
866 gint32 drawable_id,
867 int w,
868 int h,
869 int bpp,
870 int fmtbpp,
871 int mipmaps)
872 {
873 GeglBuffer *buffer;
874 const Babl *format = 0;
875 GimpImageBaseType basetype;
876 GimpImageType type;
877 unsigned char *src, *dst, *fmtdst, *tmp;
878 unsigned char *palette = NULL;
879 int i, c, x, y, size, fmtsize, offset, colors;
880 int compression = dds_write_vals.compression;
881 int flags = 0;
882
883 basetype = gimp_image_base_type (image_id);
884 type = gimp_drawable_type (drawable_id);
885
886 buffer = gimp_drawable_get_buffer (drawable_id);
887
888 src = g_malloc (w * h * bpp);
889
890 if (basetype == GIMP_INDEXED)
891 format = gimp_drawable_get_format (drawable_id);
892 else if (bpp == 1)
893 format = babl_format ("Y' u8");
894 else if (bpp == 2)
895 format = babl_format ("Y'A u8");
896 else if (bpp == 3)
897 format = babl_format ("R'G'B' u8");
898 else
899 format = babl_format ("R'G'B'A u8");
900
901 gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, w, h), 1.0, format, src,
902 GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
903
904 if (basetype == GIMP_INDEXED)
905 {
906 palette = gimp_image_get_colormap (image_id, &colors);
907
908 if (type == GIMP_INDEXEDA_IMAGE)
909 {
910 tmp = g_malloc (w * h);
911 for (i = 0; i < w * h; ++i)
912 tmp[i] = src[2 * i];
913 g_free (src);
914 src = tmp;
915 bpp = 1;
916 }
917 }
918
919 /* we want and assume BGRA ordered pixels for bpp >= 3 from here and
920 onwards */
921 if (bpp >= 3)
922 swap_rb (src, w * h, bpp);
923
924 if (compression == DDS_COMPRESS_BC3N)
925 {
926 if (bpp != 4)
927 {
928 fmtsize = w * h * 4;
929 fmtdst = g_malloc (fmtsize);
930 convert_pixels (fmtdst, src, DDS_FORMAT_RGBA8, w, h, 0, bpp,
931 palette, 1);
932 g_free (src);
933 src = fmtdst;
934 bpp = 4;
935 }
936
937 for (y = 0; y < h; ++y)
938 {
939 for (x = 0; x < w; ++x)
940 {
941 /* set alpha to red (x) */
942 src[y * (w * 4) + (x * 4) + 3] =
943 src[y * (w * 4) + (x * 4) + 2];
944 /* set red to 1 */
945 src[y * (w * 4) + (x * 4) + 2] = 255;
946 }
947 }
948 }
949
950 /* RXGB (Doom3) */
951 if (compression == DDS_COMPRESS_RXGB)
952 {
953 if (bpp != 4)
954 {
955 fmtsize = w * h * 4;
956 fmtdst = g_malloc (fmtsize);
957 convert_pixels (fmtdst, src, DDS_FORMAT_RGBA8, w, h, 0, bpp,
958 palette, 1);
959 g_free (src);
960 src = fmtdst;
961 bpp = 4;
962 }
963
964 for (y = 0; y < h; ++y)
965 {
966 for (x = 0; x < w; ++x)
967 {
968 /* swap red and alpha */
969 c = src[y * (w * 4) + (x * 4) + 3];
970 src[y * (w * 4) + (x * 4) + 3] =
971 src[y * (w * 4) + (x * 4) + 2];
972 src[y * (w * 4) + (x * 4) + 2] = c;
973 }
974 }
975 }
976
977 if (compression == DDS_COMPRESS_YCOCG ||
978 compression == DDS_COMPRESS_YCOCGS) /* convert to YCoCG */
979 {
980 fmtsize = w * h * 4;
981 fmtdst = g_malloc (fmtsize);
982 convert_pixels (fmtdst, src, DDS_FORMAT_YCOCG, w, h, 0, bpp,
983 palette, 1);
984 g_free (src);
985 src = fmtdst;
986 bpp = 4;
987 }
988
989 if (compression == DDS_COMPRESS_AEXP)
990 {
991 fmtsize = w * h * 4;
992 fmtdst = g_malloc (fmtsize);
993 convert_pixels (fmtdst, src, DDS_FORMAT_AEXP, w, h, 0, bpp,
994 palette, 1);
995 g_free (src);
996 src = fmtdst;
997 bpp = 4;
998 }
999
1000 if (compression == DDS_COMPRESS_NONE)
1001 {
1002 if (mipmaps > 1)
1003 {
1004 /* pre-convert indexed images to RGB for better quality mipmaps
1005 if a pixel format conversion is requested */
1006 if (dds_write_vals.format > DDS_FORMAT_DEFAULT && basetype == GIMP_INDEXED)
1007 {
1008 fmtsize = get_mipmapped_size (w, h, 3, 0, mipmaps, DDS_COMPRESS_NONE);
1009 fmtdst = g_malloc (fmtsize);
1010 convert_pixels (fmtdst, src, DDS_FORMAT_RGB8, w, h, 0, bpp,
1011 palette, 1);
1012 g_free (src);
1013 src = fmtdst;
1014 bpp = 3;
1015 palette = NULL;
1016 }
1017
1018 size = get_mipmapped_size (w, h, bpp, 0, mipmaps, DDS_COMPRESS_NONE);
1019 dst = g_malloc (size);
1020 if (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE)
1021 {
1022 generate_mipmaps (dst, src, w, h, bpp, palette != NULL,
1023 mipmaps,
1024 dds_write_vals.mipmap_filter,
1025 dds_write_vals.mipmap_wrap,
1026 dds_write_vals.gamma_correct + dds_write_vals.srgb,
1027 dds_write_vals.gamma,
1028 dds_write_vals.preserve_alpha_coverage,
1029 dds_write_vals.alpha_test_threshold);
1030 }
1031 else
1032 {
1033 memcpy (dst, src, w * h * bpp);
1034 get_mipmap_chain (dst + (w * h * bpp), w, h, bpp, image_id, drawable_id);
1035 }
1036
1037 if (dds_write_vals.format > DDS_FORMAT_DEFAULT)
1038 {
1039 fmtsize = get_mipmapped_size (w, h, fmtbpp, 0, mipmaps,
1040 DDS_COMPRESS_NONE);
1041 fmtdst = g_malloc (fmtsize);
1042
1043 convert_pixels (fmtdst, dst, dds_write_vals.format, w, h, 0, bpp,
1044 palette, mipmaps);
1045
1046 g_free (dst);
1047 dst = fmtdst;
1048 bpp = fmtbpp;
1049 }
1050
1051 offset = 0;
1052
1053 for (i = 0; i < mipmaps; ++i)
1054 {
1055 size = get_mipmapped_size (w, h, bpp, i, 1, DDS_COMPRESS_NONE);
1056 fwrite (dst + offset, 1, size, fp);
1057 offset += size;
1058 }
1059
1060 g_free (dst);
1061 }
1062 else
1063 {
1064 if (dds_write_vals.format > DDS_FORMAT_DEFAULT)
1065 {
1066 fmtdst = g_malloc (h * w * fmtbpp);
1067 convert_pixels (fmtdst, src, dds_write_vals.format, w, h, 0, bpp,
1068 palette, 1);
1069 g_free (src);
1070 src = fmtdst;
1071 bpp = fmtbpp;
1072 }
1073
1074 fwrite (src, 1, h * w * bpp, fp);
1075 }
1076 }
1077 else
1078 {
1079 size = get_mipmapped_size (w, h, bpp, 0, mipmaps, compression);
1080
1081 dst = g_malloc (size);
1082
1083 if (basetype == GIMP_INDEXED)
1084 {
1085 fmtsize = get_mipmapped_size (w, h, 3, 0, mipmaps,
1086 DDS_COMPRESS_NONE);
1087 fmtdst = g_malloc (fmtsize);
1088 convert_pixels (fmtdst, src, DDS_FORMAT_RGB8, w, h, 0, bpp,
1089 palette, mipmaps);
1090 g_free (src);
1091 src = fmtdst;
1092 bpp = 3;
1093 }
1094
1095 if (mipmaps > 1)
1096 {
1097 fmtsize = get_mipmapped_size (w, h, bpp, 0, mipmaps,
1098 DDS_COMPRESS_NONE);
1099 fmtdst = g_malloc (fmtsize);
1100 if (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE)
1101 {
1102 generate_mipmaps (fmtdst, src, w, h, bpp, 0, mipmaps,
1103 dds_write_vals.mipmap_filter,
1104 dds_write_vals.mipmap_wrap,
1105 dds_write_vals.gamma_correct + dds_write_vals.srgb,
1106 dds_write_vals.gamma,
1107 dds_write_vals.preserve_alpha_coverage,
1108 dds_write_vals.alpha_test_threshold);
1109 }
1110 else
1111 {
1112 memcpy (fmtdst, src, w * h * bpp);
1113 get_mipmap_chain (fmtdst + (w * h * bpp), w, h, bpp, image_id, drawable_id);
1114 }
1115
1116 g_free (src);
1117 src = fmtdst;
1118 }
1119
1120 flags = 0;
1121 if (dds_write_vals.perceptual_metric) flags |= DXT_PERCEPTUAL;
1122
1123 dxt_compress (dst, src, compression, w, h, bpp, mipmaps, flags);
1124
1125 fwrite (dst, 1, size, fp);
1126
1127 g_free (dst);
1128 }
1129
1130 g_free (src);
1131
1132 g_object_unref (buffer);
1133 }
1134
1135 static void
write_volume_mipmaps(FILE * fp,gint32 image_id,gint32 * layers,int w,int h,int d,int bpp,int fmtbpp,int mipmaps)1136 write_volume_mipmaps (FILE *fp,
1137 gint32 image_id,
1138 gint32 *layers,
1139 int w,
1140 int h,
1141 int d,
1142 int bpp,
1143 int fmtbpp,
1144 int mipmaps)
1145 {
1146 int i, size, offset, colors;
1147 unsigned char *src, *dst, *tmp, *fmtdst;
1148 unsigned char *palette = 0;
1149 GeglBuffer *buffer;
1150 const Babl *format;
1151 GimpImageBaseType type;
1152
1153 type = gimp_image_base_type (image_id);
1154
1155 if (dds_write_vals.compression != DDS_COMPRESS_NONE) return;
1156
1157 src = g_malloc (w * h * bpp * d);
1158
1159 if (bpp == 1)
1160 format = babl_format ("Y' u8");
1161 else if (bpp == 2)
1162 format = babl_format ("Y'A u8");
1163 else if (bpp == 3)
1164 format = babl_format ("R'G'B' u8");
1165 else
1166 format = babl_format ("R'G'B'A u8");
1167
1168 if (gimp_image_base_type (image_id) == GIMP_INDEXED)
1169 palette = gimp_image_get_colormap (image_id, &colors);
1170
1171 offset = 0;
1172 for (i = 0; i < d; ++i)
1173 {
1174 buffer = gimp_drawable_get_buffer (layers[i]);
1175 gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0, w, h), 1.0, format,
1176 src + offset, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
1177 offset += (w * h * bpp);
1178 g_object_unref (buffer);
1179 }
1180
1181 if (gimp_drawable_type (layers[0]) == GIMP_INDEXEDA_IMAGE)
1182 {
1183 tmp = g_malloc (w * h * d);
1184 for (i = 0; i < w * h * d; ++i)
1185 tmp[i] = src[2 * i];
1186 g_free (src);
1187 src = tmp;
1188 bpp = 1;
1189 }
1190
1191 /* we want and assume BGRA ordered pixels for bpp >= 3 from here and
1192 onwards */
1193 if (bpp >= 3)
1194 swap_rb (src, w * h * d, bpp);
1195
1196 /* pre-convert indexed images to RGB for better mipmaps if a
1197 pixel format conversion is requested */
1198 if (dds_write_vals.format > DDS_FORMAT_DEFAULT && type == GIMP_INDEXED)
1199 {
1200 size = get_volume_mipmapped_size (w, h, d, 3, 0, mipmaps,
1201 DDS_COMPRESS_NONE);
1202 dst = g_malloc (size);
1203 convert_pixels (dst, src, DDS_FORMAT_RGB8, w, h, d, bpp, palette, 1);
1204 g_free (src);
1205 src = dst;
1206 bpp = 3;
1207 palette = NULL;
1208 }
1209
1210 size = get_volume_mipmapped_size (w, h, d, bpp, 0, mipmaps,
1211 dds_write_vals.compression);
1212
1213 dst = g_malloc (size);
1214
1215 offset = get_volume_mipmapped_size (w, h, d, bpp, 0, 1,
1216 dds_write_vals.compression);
1217
1218 generate_volume_mipmaps (dst, src, w, h, d, bpp,
1219 palette != NULL, mipmaps,
1220 dds_write_vals.mipmap_filter,
1221 dds_write_vals.mipmap_wrap,
1222 dds_write_vals.gamma_correct + dds_write_vals.srgb,
1223 dds_write_vals.gamma);
1224
1225 if (dds_write_vals.format > DDS_FORMAT_DEFAULT)
1226 {
1227 size = get_volume_mipmapped_size (w, h, d, fmtbpp, 0, mipmaps,
1228 dds_write_vals.compression);
1229 offset = get_volume_mipmapped_size (w, h, d, fmtbpp, 0, 1,
1230 dds_write_vals.compression);
1231 fmtdst = g_malloc (size);
1232
1233 convert_pixels (fmtdst, dst, dds_write_vals.format, w, h, d, bpp,
1234 palette, mipmaps);
1235 g_free (dst);
1236 dst = fmtdst;
1237 }
1238
1239 fwrite (dst + offset, 1, size, fp);
1240
1241 g_free (src);
1242 g_free (dst);
1243 }
1244
1245 static gboolean
write_image(FILE * fp,gint32 image_id,gint32 drawable_id)1246 write_image (FILE *fp,
1247 gint32 image_id,
1248 gint32 drawable_id)
1249 {
1250 GimpImageType drawable_type;
1251 GimpImageBaseType basetype;
1252 gint i, w, h;
1253 gint bpp = 0;
1254 gint fmtbpp = 0;
1255 gint has_alpha = 0;
1256 gint num_mipmaps;
1257 guchar hdr[DDS_HEADERSIZE];
1258 guchar hdr10[DDS_HEADERSIZE_DX10];
1259 guint flags = 0, pflags = 0, caps = 0, caps2 = 0, size = 0;
1260 guint rmask = 0, gmask = 0, bmask = 0, amask = 0;
1261 guint fourcc = 0;
1262 DXGI_FORMAT dxgi_format = DXGI_FORMAT_UNKNOWN;
1263 gint32 num_layers;
1264 gint32 *layers;
1265 guchar *cmap;
1266 gint colors;
1267 guchar zero[4] = {0, 0, 0, 0};
1268 gint is_dx10 = 0;
1269 gint array_size = 1;
1270
1271 layers = gimp_image_get_layers (image_id, &num_layers);
1272
1273 if (dds_write_vals.mipmaps == DDS_MIPMAP_EXISTING)
1274 drawable_id = layers[0];
1275
1276 if (dds_write_vals.savetype == DDS_SAVE_SELECTED_LAYER)
1277 {
1278 w = gimp_drawable_width (drawable_id);
1279 h = gimp_drawable_height (drawable_id);
1280 }
1281 else
1282 {
1283 w = gimp_image_width (image_id);
1284 h = gimp_image_height (image_id);
1285 }
1286
1287 basetype = gimp_image_base_type (image_id);
1288 drawable_type = gimp_drawable_type (drawable_id);
1289
1290 switch (drawable_type)
1291 {
1292 case GIMP_RGB_IMAGE: bpp = 3; break;
1293 case GIMP_RGBA_IMAGE: bpp = 4; break;
1294 case GIMP_GRAY_IMAGE: bpp = 1; break;
1295 case GIMP_GRAYA_IMAGE: bpp = 2; break;
1296 case GIMP_INDEXED_IMAGE: bpp = 1; break;
1297 case GIMP_INDEXEDA_IMAGE: bpp = 2; break;
1298 default:
1299 break;
1300 }
1301
1302 if (dds_write_vals.format > DDS_FORMAT_DEFAULT)
1303 {
1304 for (i = 0; ; ++i)
1305 {
1306 if (format_info[i].format == dds_write_vals.format)
1307 {
1308 fmtbpp = format_info[i].bpp;
1309 has_alpha = format_info[i].alpha;
1310 rmask = format_info[i].rmask;
1311 gmask = format_info[i].gmask;
1312 bmask = format_info[i].bmask;
1313 amask = format_info[i].amask;
1314 dxgi_format = format_info[i].dxgi_format;
1315 break;
1316 }
1317 }
1318 }
1319 else if (bpp == 1)
1320 {
1321 if (basetype == GIMP_INDEXED)
1322 {
1323 fmtbpp = 1;
1324 has_alpha = 0;
1325 rmask = bmask = gmask = amask = 0;
1326 }
1327 else
1328 {
1329 fmtbpp = 1;
1330 has_alpha = 0;
1331 rmask = 0x000000ff;
1332 gmask = bmask = amask = 0;
1333 dxgi_format = DXGI_FORMAT_R8_UNORM;
1334 }
1335 }
1336 else if (bpp == 2)
1337 {
1338 if (basetype == GIMP_INDEXED)
1339 {
1340 fmtbpp = 1;
1341 has_alpha = 0;
1342 rmask = gmask = bmask = amask = 0;
1343 }
1344 else
1345 {
1346 fmtbpp = 2;
1347 has_alpha = 1;
1348 rmask = 0x000000ff;
1349 gmask = 0x000000ff;
1350 bmask = 0x000000ff;
1351 amask = 0x0000ff00;
1352 }
1353 }
1354 else if (bpp == 3)
1355 {
1356 fmtbpp = 3;
1357 rmask = 0x00ff0000;
1358 gmask = 0x0000ff00;
1359 bmask = 0x000000ff;
1360 amask = 0x00000000;
1361 }
1362 else
1363 {
1364 fmtbpp = 4;
1365 has_alpha = 1;
1366 rmask = 0x00ff0000;
1367 gmask = 0x0000ff00;
1368 bmask = 0x000000ff;
1369 amask = 0xff000000;
1370 dxgi_format = DXGI_FORMAT_B8G8R8A8_UNORM;
1371 }
1372
1373 memset (hdr, 0, DDS_HEADERSIZE);
1374
1375 PUTL32(hdr, FOURCC ('D','D','S',' '));
1376 PUTL32(hdr + 4, 124);
1377 PUTL32(hdr + 12, h);
1378 PUTL32(hdr + 16, w);
1379 PUTL32(hdr + 76, 32);
1380
1381 if (dds_write_vals.compression == DDS_COMPRESS_NONE)
1382 {
1383 PUTL32(hdr + 88, fmtbpp << 3);
1384 PUTL32(hdr + 92, rmask);
1385 PUTL32(hdr + 96, gmask);
1386 PUTL32(hdr + 100, bmask);
1387 PUTL32(hdr + 104, amask);
1388 }
1389
1390 /*
1391 put some information in the reserved area to identify the origin
1392 of the image
1393 */
1394 PUTL32(hdr + 32, FOURCC ('G','I','M','P'));
1395 PUTL32(hdr + 36, FOURCC ('-','D','D','S'));
1396 PUTL32(hdr + 40, DDS_PLUGIN_VERSION);
1397
1398 flags = DDSD_CAPS | DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT;
1399
1400 caps = DDSCAPS_TEXTURE;
1401 if (dds_write_vals.mipmaps)
1402 {
1403 flags |= DDSD_MIPMAPCOUNT;
1404 caps |= (DDSCAPS_COMPLEX | DDSCAPS_MIPMAP);
1405 num_mipmaps = get_num_mipmaps (w, h);
1406 }
1407 else
1408 {
1409 num_mipmaps = 1;
1410 }
1411
1412 if ((dds_write_vals.savetype == DDS_SAVE_CUBEMAP) && is_cubemap)
1413 {
1414 caps |= DDSCAPS_COMPLEX;
1415 caps2 |= (DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_ALL_FACES);
1416 }
1417 else if ((dds_write_vals.savetype == DDS_SAVE_VOLUMEMAP) && is_volume)
1418 {
1419 PUTL32(hdr + 24, num_layers); /* depth */
1420 flags |= DDSD_DEPTH;
1421 caps |= DDSCAPS_COMPLEX;
1422 caps2 |= DDSCAPS2_VOLUME;
1423 }
1424
1425 PUTL32(hdr + 28, num_mipmaps);
1426 PUTL32(hdr + 108, caps);
1427 PUTL32(hdr + 112, caps2);
1428
1429 if (dds_write_vals.compression == DDS_COMPRESS_NONE)
1430 {
1431 flags |= DDSD_PITCH;
1432
1433 if (dds_write_vals.format > DDS_FORMAT_DEFAULT)
1434 {
1435 if (dds_write_vals.format == DDS_FORMAT_A8)
1436 pflags |= DDPF_ALPHA;
1437 else
1438 {
1439 if (((fmtbpp == 1) || (dds_write_vals.format == DDS_FORMAT_L8A8)) &&
1440 (dds_write_vals.format != DDS_FORMAT_R3G3B2))
1441 pflags |= DDPF_LUMINANCE;
1442 else
1443 pflags |= DDPF_RGB;
1444 }
1445 }
1446 else
1447 {
1448 if (bpp == 1)
1449 {
1450 if (basetype == GIMP_INDEXED)
1451 pflags |= DDPF_PALETTEINDEXED8;
1452 else
1453 pflags |= DDPF_LUMINANCE;
1454 }
1455 else if ((bpp == 2) && (basetype == GIMP_INDEXED))
1456 {
1457 pflags |= DDPF_PALETTEINDEXED8;
1458 }
1459 else
1460 {
1461 pflags |= DDPF_RGB;
1462 }
1463 }
1464
1465 if (has_alpha)
1466 pflags |= DDPF_ALPHAPIXELS;
1467
1468 PUTL32 (hdr + 8, flags);
1469 PUTL32 (hdr + 20, w * fmtbpp); /* pitch */
1470 PUTL32 (hdr + 80, pflags);
1471
1472 /*
1473 * write extra fourcc info - this is special to GIMP DDS. When the image
1474 * is read by the plugin, we can detect the added information to decode
1475 * the pixels
1476 */
1477 if (dds_write_vals.format == DDS_FORMAT_AEXP)
1478 {
1479 PUTL32 (hdr + 44, FOURCC ('A','E','X','P'));
1480 }
1481 else if (dds_write_vals.format == DDS_FORMAT_YCOCG)
1482 {
1483 PUTL32 (hdr + 44, FOURCC ('Y','C','G','1'));
1484 }
1485 }
1486 else
1487 {
1488 flags |= DDSD_LINEARSIZE;
1489 pflags = DDPF_FOURCC;
1490
1491 switch (dds_write_vals.compression)
1492 {
1493 case DDS_COMPRESS_BC1:
1494 fourcc = FOURCC ('D','X','T','1');
1495 dxgi_format = DXGI_FORMAT_BC1_UNORM;
1496 break;
1497
1498 case DDS_COMPRESS_BC2:
1499 fourcc = FOURCC ('D','X','T','3');
1500 dxgi_format = DXGI_FORMAT_BC2_UNORM;
1501 break;
1502
1503 case DDS_COMPRESS_BC3:
1504 case DDS_COMPRESS_BC3N:
1505 case DDS_COMPRESS_YCOCG:
1506 case DDS_COMPRESS_YCOCGS:
1507 case DDS_COMPRESS_AEXP:
1508 fourcc = FOURCC ('D','X','T','5');
1509 dxgi_format = DXGI_FORMAT_BC3_UNORM;
1510 break;
1511
1512 case DDS_COMPRESS_RXGB:
1513 fourcc = FOURCC ('R','X','G','B');
1514 dxgi_format = DXGI_FORMAT_BC3_UNORM;
1515 break;
1516
1517 case DDS_COMPRESS_BC4:
1518 fourcc = FOURCC ('A','T','I','1');
1519 dxgi_format = DXGI_FORMAT_BC4_UNORM;
1520 //is_dx10 = 1;
1521 break;
1522
1523 case DDS_COMPRESS_BC5:
1524 fourcc = FOURCC ('A','T','I','2');
1525 dxgi_format = DXGI_FORMAT_BC5_UNORM;
1526 //is_dx10 = 1;
1527 break;
1528 }
1529
1530 if ((dds_write_vals.compression == DDS_COMPRESS_BC3N) ||
1531 (dds_write_vals.compression == DDS_COMPRESS_RXGB))
1532 {
1533 pflags |= DDPF_NORMAL;
1534 }
1535
1536 PUTL32 (hdr + 8, flags);
1537 PUTL32 (hdr + 80, pflags);
1538 PUTL32 (hdr + 84, fourcc);
1539
1540 size = ((w + 3) >> 2) * ((h + 3) >> 2);
1541 if ((dds_write_vals.compression == DDS_COMPRESS_BC1) ||
1542 (dds_write_vals.compression == DDS_COMPRESS_BC4))
1543 size *= 8;
1544 else
1545 size *= 16;
1546
1547 PUTL32 (hdr + 20, size); /* linear size */
1548
1549 /*
1550 * write extra fourcc info - this is special to GIMP DDS. When the image
1551 * is read by the plugin, we can detect the added information to decode
1552 * the pixels
1553 */
1554 if (dds_write_vals.compression == DDS_COMPRESS_AEXP)
1555 {
1556 PUTL32 (hdr + 44, FOURCC ('A','E','X','P'));
1557 }
1558 else if (dds_write_vals.compression == DDS_COMPRESS_YCOCG)
1559 {
1560 PUTL32 (hdr + 44, FOURCC ('Y','C','G','1'));
1561 }
1562 else if (dds_write_vals.compression == DDS_COMPRESS_YCOCGS)
1563 {
1564 PUTL32 (hdr + 44, FOURCC ('Y','C','G','2'));
1565 }
1566 }
1567
1568 /* texture arrays require a DX10 header */
1569 if (dds_write_vals.savetype == DDS_SAVE_ARRAY)
1570 is_dx10 = 1;
1571
1572 if (is_dx10)
1573 {
1574 array_size = (dds_write_vals.savetype == DDS_SAVE_SELECTED_LAYER) ? 1 : get_array_size (image_id);
1575
1576 PUTL32 (hdr10 + 0, dxgi_format);
1577 PUTL32 (hdr10 + 4, D3D10_RESOURCE_DIMENSION_TEXTURE2D);
1578 PUTL32 (hdr10 + 8, 0);
1579 PUTL32 (hdr10 + 12, array_size);
1580 PUTL32 (hdr10 + 16, 0);
1581
1582 /* update main header accordingly */
1583 PUTL32 (hdr + 80, pflags | DDPF_FOURCC);
1584 PUTL32 (hdr + 84, FOURCC ('D','X','1','0'));
1585 }
1586
1587 fwrite (hdr, DDS_HEADERSIZE, 1, fp);
1588
1589 if (is_dx10)
1590 fwrite (hdr10, DDS_HEADERSIZE_DX10, 1, fp);
1591
1592 /* write palette for indexed images */
1593 if ((basetype == GIMP_INDEXED) &&
1594 (dds_write_vals.format == DDS_FORMAT_DEFAULT) &&
1595 (dds_write_vals.compression == DDS_COMPRESS_NONE))
1596 {
1597 cmap = gimp_image_get_colormap (image_id, &colors);
1598
1599 for (i = 0; i < colors; ++i)
1600 {
1601 fwrite (&cmap[3 * i], 1, 3, fp);
1602 if (i == dds_write_vals.transindex)
1603 fputc (0, fp);
1604 else
1605 fputc (255, fp);
1606 }
1607
1608 for (; i < 256; ++i)
1609 fwrite (zero, 1, 4, fp);
1610 }
1611
1612 if (dds_write_vals.savetype == DDS_SAVE_CUBEMAP)
1613 {
1614 for (i = 0; i < 6; ++i)
1615 {
1616 write_layer (fp, image_id, cubemap_faces[i], w, h, bpp, fmtbpp,
1617 num_mipmaps);
1618 gimp_progress_update ((float)(i + 1) / 6.0);
1619 }
1620 }
1621 else if (dds_write_vals.savetype == DDS_SAVE_VOLUMEMAP)
1622 {
1623 for (i = 0; i < num_layers; ++i)
1624 {
1625 write_layer (fp, image_id, layers[i], w, h, bpp, fmtbpp, 1);
1626 gimp_progress_update ((float)i / (float)num_layers);
1627 }
1628
1629 if (num_mipmaps > 1)
1630 write_volume_mipmaps (fp, image_id, layers, w, h, num_layers,
1631 bpp, fmtbpp, num_mipmaps);
1632 }
1633 else if (dds_write_vals.savetype == DDS_SAVE_ARRAY)
1634 {
1635 for (i = 0; i < num_layers; ++i)
1636 {
1637 if ((gimp_drawable_width (layers[i]) == w) &&
1638 (gimp_drawable_height (layers[i]) == h))
1639 {
1640 write_layer (fp, image_id, layers[i],
1641 w, h, bpp, fmtbpp, num_mipmaps);
1642 }
1643
1644 gimp_progress_update ((float)i / (float)num_layers);
1645 }
1646 }
1647 else
1648 {
1649 write_layer (fp, image_id, drawable_id, w, h, bpp, fmtbpp, num_mipmaps);
1650 }
1651
1652 gimp_progress_update (1.0);
1653
1654 return TRUE;
1655 }
1656
1657 static GtkWidget *
string_value_combo_new(string_value_t * strings,int active_value)1658 string_value_combo_new (string_value_t *strings,
1659 int active_value)
1660 {
1661 GtkWidget *opt;
1662 GtkCellRenderer *renderer;
1663 GtkListStore *store;
1664 GtkTreeIter iter;
1665 gint i;
1666 gint active = 0;
1667
1668 store = gtk_list_store_new (3, G_TYPE_INT, G_TYPE_STRING, G_TYPE_BOOLEAN);
1669 for (i = 0; strings[i].string; ++i)
1670 {
1671 if (strings[i].value == active_value) active = i;
1672 gtk_list_store_append (store, &iter);
1673 gtk_list_store_set (store, &iter,
1674 0, strings[i].value,
1675 1, strings[i].string,
1676 2, 1,
1677 -1);
1678 }
1679
1680 renderer = gtk_cell_renderer_text_new ();
1681
1682 opt = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
1683 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (opt), renderer, 1);
1684 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (opt), renderer,
1685 "text", COMBO_STRING,
1686 "sensitive", COMBO_SENSITIVE,
1687 NULL);
1688
1689 gtk_combo_box_set_active (GTK_COMBO_BOX (opt), active);
1690
1691 g_object_unref (store);
1692
1693 return opt;
1694 }
1695
1696 static void
string_value_combo_selected(GtkWidget * widget,gpointer data)1697 string_value_combo_selected (GtkWidget *widget,
1698 gpointer data)
1699 {
1700 gint value;
1701 GtkTreeIter iter;
1702 GtkTreeModel *model;
1703
1704 model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
1705 gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter);
1706 gtk_tree_model_get (model, &iter, COMBO_VALUE, &value, -1);
1707
1708 *((int *)data) = value;
1709 }
1710
1711 static void
string_value_combo_set_item_sensitive(GtkWidget * widget,gint value,gboolean sensitive)1712 string_value_combo_set_item_sensitive (GtkWidget *widget,
1713 gint value,
1714 gboolean sensitive)
1715 {
1716 GtkTreeIter iter;
1717 GtkTreeModel *model;
1718 gint val;
1719
1720 model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
1721 gtk_tree_model_get_iter_first (model, &iter);
1722 do
1723 {
1724 gtk_tree_model_get (model, &iter, COMBO_VALUE, &val, -1);
1725 if (val == value)
1726 {
1727 gtk_list_store_set (GTK_LIST_STORE (model), &iter,
1728 COMBO_SENSITIVE, sensitive, -1);
1729 break;
1730 }
1731 } while (gtk_tree_model_iter_next (model, &iter));
1732 }
1733
1734 static void
string_value_combo_set_active(GtkWidget * widget,gint value)1735 string_value_combo_set_active (GtkWidget *widget,
1736 gint value)
1737 {
1738 GtkTreeIter iter;
1739 GtkTreeModel *model;
1740 int val;
1741
1742 model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
1743 gtk_tree_model_get_iter_first (model, &iter);
1744 do
1745 {
1746 gtk_tree_model_get (model, &iter, COMBO_VALUE, &val, -1);
1747 if (val == value)
1748 {
1749 gtk_combo_box_set_active_iter (GTK_COMBO_BOX (widget), &iter);
1750 break;
1751 }
1752 } while (gtk_tree_model_iter_next (model, &iter));
1753 }
1754
1755 static void
save_dialog_response(GtkWidget * widget,gint response_id,gpointer data)1756 save_dialog_response (GtkWidget *widget,
1757 gint response_id,
1758 gpointer data)
1759 {
1760 switch (response_id)
1761 {
1762 case GTK_RESPONSE_OK:
1763 runme = TRUE;
1764
1765 default:
1766 gtk_widget_destroy (widget);
1767 break;
1768 }
1769 }
1770
1771 static void
compression_selected(GtkWidget * widget,gpointer data)1772 compression_selected (GtkWidget *widget,
1773 gpointer data)
1774 {
1775 GtkTreeIter iter;
1776 GtkTreeModel *model;
1777
1778 model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
1779 gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter);
1780 gtk_tree_model_get (model, &iter, COMBO_VALUE,
1781 &dds_write_vals.compression,
1782 -1);
1783
1784 gtk_widget_set_sensitive (format_opt,
1785 dds_write_vals.compression == DDS_COMPRESS_NONE);
1786 gtk_widget_set_sensitive (pm_chk,
1787 dds_write_vals.compression != DDS_COMPRESS_NONE);
1788 }
1789
1790 static void
savetype_selected(GtkWidget * widget,gpointer data)1791 savetype_selected (GtkWidget *widget,
1792 gpointer data)
1793 {
1794 gint32 image_id = *((gint32 *)data);
1795
1796 dds_write_vals.savetype = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
1797
1798 switch (dds_write_vals.savetype)
1799 {
1800 case DDS_SAVE_SELECTED_LAYER:
1801 case DDS_SAVE_CUBEMAP:
1802 case DDS_SAVE_ARRAY:
1803 gtk_widget_set_sensitive (compress_opt, TRUE);
1804 break;
1805
1806 case DDS_SAVE_VOLUMEMAP:
1807 dds_write_vals.compression = DDS_COMPRESS_NONE;
1808 gtk_combo_box_set_active (GTK_COMBO_BOX (compress_opt),
1809 DDS_COMPRESS_NONE);
1810 gtk_widget_set_sensitive (compress_opt, FALSE);
1811 break;
1812 }
1813
1814 string_value_combo_set_item_sensitive (mipmap_opt, DDS_MIPMAP_EXISTING,
1815 check_mipmaps (image_id, dds_write_vals.savetype));
1816 }
1817
1818 static void
mipmaps_selected(GtkWidget * widget,gpointer data)1819 mipmaps_selected (GtkWidget *widget,
1820 gpointer data)
1821 {
1822 GtkTreeModel *model;
1823 GtkTreeIter iter;
1824
1825 model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
1826 gtk_combo_box_get_active_iter (GTK_COMBO_BOX (widget), &iter);
1827 gtk_tree_model_get (model, &iter, COMBO_VALUE,
1828 &dds_write_vals.mipmaps, -1);
1829
1830 gtk_widget_set_sensitive (mipmap_filter_opt,
1831 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
1832 gtk_widget_set_sensitive (mipmap_wrap_opt,
1833 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
1834 gtk_widget_set_sensitive (gamma_chk,
1835 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
1836 gtk_widget_set_sensitive (srgb_chk,
1837 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
1838 dds_write_vals.gamma_correct);
1839 gtk_widget_set_sensitive (gamma_spin,
1840 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
1841 dds_write_vals.gamma_correct &&
1842 !dds_write_vals.srgb);
1843 gtk_widget_set_sensitive (alpha_coverage_chk,
1844 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
1845 gtk_widget_set_sensitive (alpha_test_threshold_spin,
1846 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
1847 dds_write_vals.preserve_alpha_coverage);
1848 }
1849
1850 static void
toggle_clicked(GtkWidget * widget,gpointer data)1851 toggle_clicked (GtkWidget *widget,
1852 gpointer data)
1853 {
1854 gint *flag = (int *)data;
1855
1856 (*flag) = !(*flag);
1857 }
1858
1859 static void
transindex_clicked(GtkWidget * widget,gpointer data)1860 transindex_clicked (GtkWidget *widget,
1861 gpointer data)
1862 {
1863 GtkWidget *spin = GTK_WIDGET (g_object_get_data (G_OBJECT (widget), "spin"));
1864
1865 if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
1866 {
1867 dds_write_vals.transindex = 0;
1868 gtk_widget_set_sensitive (spin, TRUE);
1869 gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), 0);
1870 }
1871 else
1872 {
1873 gtk_widget_set_sensitive (spin, FALSE);
1874 dds_write_vals.transindex = -1;
1875 }
1876 }
1877
1878 static void
transindex_changed(GtkWidget * widget,gpointer data)1879 transindex_changed (GtkWidget *widget,
1880 gpointer data)
1881 {
1882 dds_write_vals.transindex =
1883 gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (widget));
1884 }
1885
1886 static void
gamma_correct_clicked(GtkWidget * widget,gpointer data)1887 gamma_correct_clicked (GtkWidget *widget,
1888 gpointer data)
1889 {
1890 dds_write_vals.gamma_correct =
1891 gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget));
1892
1893 gtk_widget_set_sensitive (srgb_chk,
1894 dds_write_vals.gamma_correct);
1895 gtk_widget_set_sensitive (gamma_spin,
1896 dds_write_vals.gamma_correct &&
1897 ! dds_write_vals.srgb);
1898 }
1899
1900 static void
srgb_clicked(GtkWidget * widget,gpointer data)1901 srgb_clicked (GtkWidget *widget,
1902 gpointer data)
1903 {
1904 dds_write_vals.srgb =
1905 gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget));
1906
1907 gtk_widget_set_sensitive (gamma_spin, !dds_write_vals.srgb);
1908 }
1909
1910 static void
gamma_changed(GtkWidget * widget,gpointer data)1911 gamma_changed (GtkWidget *widget,
1912 gpointer data)
1913 {
1914 dds_write_vals.gamma =
1915 gtk_spin_button_get_value (GTK_SPIN_BUTTON (widget));
1916 }
1917
1918 static void
alpha_coverage_clicked(GtkWidget * widget,gpointer data)1919 alpha_coverage_clicked (GtkWidget *widget,
1920 gpointer data)
1921 {
1922 dds_write_vals.preserve_alpha_coverage =
1923 gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget));
1924
1925 gtk_widget_set_sensitive (alpha_test_threshold_spin,
1926 dds_write_vals.preserve_alpha_coverage);
1927 }
1928
1929 static void
alpha_test_threshold_changed(GtkWidget * widget,gpointer data)1930 alpha_test_threshold_changed (GtkWidget *widget,
1931 gpointer data)
1932 {
1933 dds_write_vals.alpha_test_threshold =
1934 gtk_spin_button_get_value (GTK_SPIN_BUTTON (widget));
1935 }
1936
1937 static gint
save_dialog(gint32 image_id,gint32 drawable_id)1938 save_dialog (gint32 image_id,
1939 gint32 drawable_id)
1940 {
1941 GtkWidget *dlg;
1942 GtkWidget *vbox;
1943 GtkWidget *hbox;
1944 GtkWidget *table;
1945 GtkWidget *opt;
1946 GtkWidget *check;
1947 GtkWidget *spin;
1948 GtkWidget *frame;
1949 GimpImageBaseType basetype;
1950
1951 if (is_cubemap || is_volume || is_array)
1952 dds_write_vals.savetype = DDS_SAVE_SELECTED_LAYER;
1953
1954 basetype = gimp_image_base_type (image_id);
1955
1956 dlg = gimp_dialog_new (_("Export as DDS"), "dds", NULL, GTK_WIN_POS_MOUSE,
1957 gimp_standard_help_func, SAVE_PROC,
1958 _("_Cancel"), GTK_RESPONSE_CANCEL,
1959 _("_Export"), GTK_RESPONSE_OK,
1960 NULL);
1961
1962 g_signal_connect (dlg, "response",
1963 G_CALLBACK (save_dialog_response),
1964 NULL);
1965 g_signal_connect (dlg, "destroy",
1966 G_CALLBACK (gtk_main_quit),
1967 NULL);
1968
1969 gtk_window_set_resizable (GTK_WINDOW (dlg), FALSE);
1970
1971 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
1972 gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
1973 gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dlg))),
1974 vbox, TRUE, TRUE, 0);
1975 gtk_widget_show (vbox);
1976
1977 table = gtk_table_new (6, 2, 0);
1978 gtk_widget_show (table);
1979 gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
1980 gtk_table_set_row_spacings (GTK_TABLE (table), 6);
1981 gtk_table_set_col_spacings (GTK_TABLE (table), 8);
1982
1983 opt = string_value_combo_new (compression_strings,
1984 dds_write_vals.compression);
1985 gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
1986 _("_Compression:"),
1987 0.0, 0.5,
1988 opt, 1, FALSE);
1989
1990 g_signal_connect (opt, "changed",
1991 G_CALLBACK (compression_selected),
1992 NULL);
1993
1994 compress_opt = opt;
1995
1996 check = gtk_check_button_new_with_mnemonic (_("Use _perceptual error metric"));
1997 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check),
1998 dds_write_vals.perceptual_metric);
1999 gtk_table_attach (GTK_TABLE (table), check, 1, 2, 1, 2,
2000 GTK_FILL, 0, 0, 0);
2001 gtk_widget_show (check);
2002
2003 g_signal_connect (check, "clicked",
2004 G_CALLBACK (toggle_clicked),
2005 &dds_write_vals.perceptual_metric);
2006
2007 pm_chk = check;
2008
2009 opt = string_value_combo_new (format_strings, dds_write_vals.format);
2010 gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
2011 _("_Format:"),
2012 0.0, 0.5,
2013 opt, 1, FALSE);
2014
2015 g_signal_connect (opt, "changed",
2016 G_CALLBACK (string_value_combo_selected),
2017 &dds_write_vals.format);
2018
2019 gtk_widget_set_sensitive (opt, dds_write_vals.compression == DDS_COMPRESS_NONE);
2020
2021 format_opt = opt;
2022
2023 opt = string_value_combo_new (save_type_strings, dds_write_vals.savetype);
2024 gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
2025 _("_Save:"),
2026 0.0, 0.5,
2027 opt, 1, FALSE);
2028
2029 g_signal_connect (opt, "changed",
2030 G_CALLBACK (savetype_selected),
2031 &image_id);
2032
2033 string_value_combo_set_item_sensitive (opt, DDS_SAVE_CUBEMAP, is_cubemap);
2034 string_value_combo_set_item_sensitive (opt, DDS_SAVE_VOLUMEMAP, is_volume);
2035 string_value_combo_set_item_sensitive (opt, DDS_SAVE_ARRAY, is_array);
2036
2037 opt = string_value_combo_new (mipmap_strings, dds_write_vals.mipmaps);
2038 gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
2039 _("_Mipmaps:"),
2040 0.0, 0.5,
2041 opt, 1, FALSE);
2042
2043 g_signal_connect (opt, "changed",
2044 G_CALLBACK (mipmaps_selected),
2045 &image_id);
2046
2047 string_value_combo_set_item_sensitive (opt, DDS_MIPMAP_EXISTING,
2048 check_mipmaps (image_id,
2049 dds_write_vals.savetype));
2050
2051 mipmap_opt = opt;
2052
2053 string_value_combo_set_item_sensitive (opt, DDS_MIPMAP_EXISTING,
2054 ! (is_volume || is_cubemap) &&
2055 is_mipmap_chain_valid);
2056
2057
2058 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
2059 gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
2060 gtk_widget_show (hbox);
2061
2062 check = gtk_check_button_new_with_label (_("Transparent index:"));
2063 gtk_box_pack_start (GTK_BOX (hbox), check, FALSE, FALSE, 0);
2064 gtk_widget_show (check);
2065
2066 g_signal_connect (check, "clicked",
2067 G_CALLBACK (transindex_clicked),
2068 NULL);
2069
2070 spin = gimp_spin_button_new
2071 (GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, 255, 1, 1, 0)), 1, 0);
2072 gtk_box_pack_start (GTK_BOX (hbox), spin, TRUE, TRUE, 0);
2073 gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (spin),
2074 GTK_UPDATE_IF_VALID);
2075 gtk_widget_show (spin);
2076
2077 g_signal_connect (spin, "value-changed",
2078 G_CALLBACK (transindex_changed),
2079 NULL);
2080
2081 g_object_set_data (G_OBJECT (check), "spin", spin);
2082
2083 if (basetype != GIMP_INDEXED)
2084 {
2085 gtk_widget_set_sensitive (check, FALSE);
2086 gtk_widget_set_sensitive (spin, FALSE);
2087 }
2088 else if (dds_write_vals.transindex < 0)
2089 {
2090 gtk_widget_set_sensitive (spin, FALSE);
2091 }
2092 else if (dds_write_vals.transindex >= 0)
2093 {
2094 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), TRUE);
2095 gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin),
2096 dds_write_vals.transindex);
2097 }
2098
2099 if (is_volume && dds_write_vals.savetype == DDS_SAVE_VOLUMEMAP)
2100 {
2101 dds_write_vals.compression = DDS_COMPRESS_NONE;
2102 string_value_combo_set_active (compress_opt, DDS_COMPRESS_NONE);
2103 gtk_widget_set_sensitive (compress_opt, FALSE);
2104 }
2105
2106 frame = gimp_frame_new (_("Mipmap Options"));
2107 gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
2108 gtk_widget_show (frame);
2109
2110 table = gtk_table_new (7, 2, 0);
2111 gtk_table_set_row_spacings (GTK_TABLE (table), 6);
2112 gtk_table_set_col_spacings (GTK_TABLE (table), 8);
2113 gtk_container_add (GTK_CONTAINER (frame), table);
2114 gtk_widget_show (table);
2115
2116 opt = string_value_combo_new (mipmap_filter_strings,
2117 dds_write_vals.mipmap_filter);
2118 gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
2119 _("F_ilter:"),
2120 0.0, 0.5,
2121 opt, 1, FALSE);
2122
2123 g_signal_connect (opt, "changed",
2124 G_CALLBACK (string_value_combo_selected),
2125 &dds_write_vals.mipmap_filter);
2126
2127 mipmap_filter_opt = opt;
2128
2129 opt = string_value_combo_new (mipmap_wrap_strings,
2130 dds_write_vals.mipmap_wrap);
2131 gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
2132 _("_Wrap mode:"),
2133 0.0, 0.5,
2134 opt, 1, FALSE);
2135
2136 g_signal_connect (opt, "changed",
2137 G_CALLBACK (string_value_combo_selected),
2138 &dds_write_vals.mipmap_wrap);
2139
2140 mipmap_wrap_opt = opt;
2141
2142 check = gtk_check_button_new_with_mnemonic (_("Appl_y gamma correction"));
2143 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check),
2144 dds_write_vals.gamma_correct &&
2145 dds_write_vals.mipmaps);
2146 gtk_table_attach (GTK_TABLE (table), check, 1, 2, 2, 3,
2147 GTK_FILL, 0, 0, 0);
2148 gtk_widget_show (check);
2149
2150 g_signal_connect (check, "clicked",
2151 G_CALLBACK (gamma_correct_clicked),
2152 NULL);
2153
2154 gamma_chk = check;
2155
2156 check = gtk_check_button_new_with_mnemonic (_("Use s_RGB colorspace"));
2157 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check),
2158 dds_write_vals.gamma_correct &&
2159 dds_write_vals.srgb);
2160 gtk_table_attach (GTK_TABLE (table), check, 1, 2, 3, 4,
2161 GTK_FILL, 0, 0, 0);
2162 gtk_widget_show (check);
2163
2164 g_signal_connect (check, "clicked",
2165 G_CALLBACK (srgb_clicked),
2166 NULL);
2167
2168 srgb_chk = check;
2169
2170 spin = gimp_spin_button_new
2171 (GTK_ADJUSTMENT (gtk_adjustment_new (dds_write_vals.gamma,
2172 1e-05, 100, 0.1, 0.5, 0)), 1, 1);
2173 gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (spin), GTK_UPDATE_IF_VALID);
2174 gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
2175 _("_Gamma:"),
2176 0.0, 0.5,
2177 spin, 1, FALSE);
2178
2179 g_signal_connect (spin, "value_changed",
2180 G_CALLBACK (gamma_changed),
2181 NULL);
2182
2183 gamma_spin = spin;
2184
2185 check = gtk_check_button_new_with_mnemonic (_("Preserve alpha _test coverage"));
2186 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check),
2187 dds_write_vals.preserve_alpha_coverage &&
2188 dds_write_vals.mipmaps);
2189 gtk_table_attach (GTK_TABLE (table), check, 1, 2, 5, 6,
2190 GTK_FILL, 0, 0, 0);
2191 gtk_widget_show (check);
2192
2193 g_signal_connect (check, "clicked",
2194 G_CALLBACK (alpha_coverage_clicked),
2195 NULL);
2196
2197 alpha_coverage_chk = check;
2198
2199 spin = gimp_spin_button_new
2200 (GTK_ADJUSTMENT (gtk_adjustment_new (dds_write_vals.alpha_test_threshold,
2201 0, 1, 0.01, 0.1, 0)), 1, 2);
2202 gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (spin), GTK_UPDATE_IF_VALID);
2203 gimp_table_attach_aligned (GTK_TABLE (table), 0, 6,
2204 _("_Alpha test threshold:"),
2205 0.0, 0.5,
2206 spin, 1, FALSE);
2207
2208 g_signal_connect (spin, "value_changed",
2209 G_CALLBACK (alpha_test_threshold_changed),
2210 NULL);
2211
2212 alpha_test_threshold_spin = spin;
2213
2214 gtk_widget_set_sensitive (mipmap_filter_opt,
2215 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
2216 gtk_widget_set_sensitive (mipmap_wrap_opt,
2217 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
2218 gtk_widget_set_sensitive (gamma_chk
2219 , dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
2220 gtk_widget_set_sensitive (srgb_chk,
2221 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
2222 dds_write_vals.gamma_correct);
2223 gtk_widget_set_sensitive (gamma_spin,
2224 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
2225 dds_write_vals.gamma_correct &&
2226 !dds_write_vals.srgb);
2227 gtk_widget_set_sensitive (pm_chk,
2228 dds_write_vals.compression != DDS_COMPRESS_NONE);
2229 gtk_widget_set_sensitive (alpha_coverage_chk,
2230 dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE);
2231 gtk_widget_set_sensitive (alpha_test_threshold_spin,
2232 (dds_write_vals.mipmaps == DDS_MIPMAP_GENERATE) &&
2233 dds_write_vals.preserve_alpha_coverage);
2234
2235 gtk_widget_show (dlg);
2236
2237 runme = FALSE;
2238
2239 gtk_main ();
2240
2241 return runme;
2242 }
2243