d31f69fe8258d46b83fefdf8c4e111d994d40993
[blender-staging.git] / source / blender / render / intern / source / render_result.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version. 
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2006 Blender Foundation.
19  * All rights reserved.
20  *
21  * The Original Code is: all of this file.
22  *
23  * Contributor(s): none yet.
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/render/intern/source/render_result.c
29  *  \ingroup render
30  */
31
32 #include <stdio.h>
33 #include <string.h>
34
35 #include "MEM_guardedalloc.h"
36
37 #include "BKE_image.h"
38 #include "BKE_global.h"
39 #include "BKE_main.h"
40 #include "BKE_report.h"
41
42 #include "BLI_fileops.h"
43 #include "BLI_listbase.h"
44 #include "BLI_path_util.h"
45 #include "BLI_rect.h"
46 #include "BLI_string.h"
47 #include "BLI_threads.h"
48 #include "BLI_utildefines.h"
49
50 #include "IMB_imbuf.h"
51 #include "IMB_imbuf_types.h"
52
53 #include "intern/openexr/openexr_multi.h"
54
55 #include "render_result.h"
56 #include "render_types.h"
57
58 /********************************** Free *************************************/
59
60 void render_result_free(RenderResult *res)
61 {
62         if (res == NULL) return;
63
64         while (res->layers.first) {
65                 RenderLayer *rl = res->layers.first;
66                 
67                 if (rl->rectf) MEM_freeN(rl->rectf);
68                 /* acolrect and scolrect are optionally allocated in shade_tile, only free here since it can be used for drawing */
69                 if (rl->acolrect) MEM_freeN(rl->acolrect);
70                 if (rl->scolrect) MEM_freeN(rl->scolrect);
71                 
72                 while (rl->passes.first) {
73                         RenderPass *rpass = rl->passes.first;
74                         if (rpass->rect) MEM_freeN(rpass->rect);
75                         BLI_remlink(&rl->passes, rpass);
76                         MEM_freeN(rpass);
77                 }
78                 BLI_remlink(&res->layers, rl);
79                 MEM_freeN(rl);
80         }
81         
82         if (res->rect32)
83                 MEM_freeN(res->rect32);
84         if (res->rectz)
85                 MEM_freeN(res->rectz);
86         if (res->rectf)
87                 MEM_freeN(res->rectf);
88         if (res->text)
89                 MEM_freeN(res->text);
90         
91         MEM_freeN(res);
92 }
93
94 /* version that's compatible with fullsample buffers */
95 void render_result_free_list(ListBase *lb, RenderResult *rr)
96 {
97         RenderResult *rrnext;
98         
99         for (; rr; rr = rrnext) {
100                 rrnext = rr->next;
101                 
102                 if (lb && lb->first)
103                         BLI_remlink(lb, rr);
104                 
105                 render_result_free(rr);
106         }
107 }
108
109 /********************************* Names *************************************/
110
111 /* NOTE: OpenEXR only supports 32 chars for layer+pass names
112  * In blender we now use max 10 chars for pass, max 20 for layer */
113 static const char *get_pass_name(int passtype, int channel)
114 {
115         
116         if (passtype == SCE_PASS_COMBINED) {
117                 if (channel == -1) return "Combined";
118                 if (channel == 0) return "Combined.R";
119                 if (channel == 1) return "Combined.G";
120                 if (channel == 2) return "Combined.B";
121                 return "Combined.A";
122         }
123         if (passtype == SCE_PASS_Z) {
124                 if (channel == -1) return "Depth";
125                 return "Depth.Z";
126         }
127         if (passtype == SCE_PASS_VECTOR) {
128                 if (channel == -1) return "Vector";
129                 if (channel == 0) return "Vector.X";
130                 if (channel == 1) return "Vector.Y";
131                 if (channel == 2) return "Vector.Z";
132                 return "Vector.W";
133         }
134         if (passtype == SCE_PASS_NORMAL) {
135                 if (channel == -1) return "Normal";
136                 if (channel == 0) return "Normal.X";
137                 if (channel == 1) return "Normal.Y";
138                 return "Normal.Z";
139         }
140         if (passtype == SCE_PASS_UV) {
141                 if (channel == -1) return "UV";
142                 if (channel == 0) return "UV.U";
143                 if (channel == 1) return "UV.V";
144                 return "UV.A";
145         }
146         if (passtype == SCE_PASS_RGBA) {
147                 if (channel == -1) return "Color";
148                 if (channel == 0) return "Color.R";
149                 if (channel == 1) return "Color.G";
150                 if (channel == 2) return "Color.B";
151                 return "Color.A";
152         }
153         if (passtype == SCE_PASS_EMIT) {
154                 if (channel == -1) return "Emit";
155                 if (channel == 0) return "Emit.R";
156                 if (channel == 1) return "Emit.G";
157                 return "Emit.B";
158         }
159         if (passtype == SCE_PASS_DIFFUSE) {
160                 if (channel == -1) return "Diffuse";
161                 if (channel == 0) return "Diffuse.R";
162                 if (channel == 1) return "Diffuse.G";
163                 return "Diffuse.B";
164         }
165         if (passtype == SCE_PASS_SPEC) {
166                 if (channel == -1) return "Spec";
167                 if (channel == 0) return "Spec.R";
168                 if (channel == 1) return "Spec.G";
169                 return "Spec.B";
170         }
171         if (passtype == SCE_PASS_SHADOW) {
172                 if (channel == -1) return "Shadow";
173                 if (channel == 0) return "Shadow.R";
174                 if (channel == 1) return "Shadow.G";
175                 return "Shadow.B";
176         }
177         if (passtype == SCE_PASS_AO) {
178                 if (channel == -1) return "AO";
179                 if (channel == 0) return "AO.R";
180                 if (channel == 1) return "AO.G";
181                 return "AO.B";
182         }
183         if (passtype == SCE_PASS_ENVIRONMENT) {
184                 if (channel == -1) return "Env";
185                 if (channel == 0) return "Env.R";
186                 if (channel == 1) return "Env.G";
187                 return "Env.B";
188         }
189         if (passtype == SCE_PASS_INDIRECT) {
190                 if (channel == -1) return "Indirect";
191                 if (channel == 0) return "Indirect.R";
192                 if (channel == 1) return "Indirect.G";
193                 return "Indirect.B";
194         }
195         if (passtype == SCE_PASS_REFLECT) {
196                 if (channel == -1) return "Reflect";
197                 if (channel == 0) return "Reflect.R";
198                 if (channel == 1) return "Reflect.G";
199                 return "Reflect.B";
200         }
201         if (passtype == SCE_PASS_REFRACT) {
202                 if (channel == -1) return "Refract";
203                 if (channel == 0) return "Refract.R";
204                 if (channel == 1) return "Refract.G";
205                 return "Refract.B";
206         }
207         if (passtype == SCE_PASS_INDEXOB) {
208                 if (channel == -1) return "IndexOB";
209                 return "IndexOB.X";
210         }
211         if (passtype == SCE_PASS_INDEXMA) {
212                 if (channel == -1) return "IndexMA";
213                 return "IndexMA.X";
214         }
215         if (passtype == SCE_PASS_MIST) {
216                 if (channel == -1) return "Mist";
217                 return "Mist.Z";
218         }
219         if (passtype == SCE_PASS_RAYHITS) {
220                 if (channel == -1) return "Rayhits";
221                 if (channel == 0) return "Rayhits.R";
222                 if (channel == 1) return "Rayhits.G";
223                 return "Rayhits.B";
224         }
225         if (passtype == SCE_PASS_DIFFUSE_DIRECT) {
226                 if (channel == -1) return "DiffDir";
227                 if (channel == 0) return "DiffDir.R";
228                 if (channel == 1) return "DiffDir.G";
229                 return "DiffDir.B";
230         }
231         if (passtype == SCE_PASS_DIFFUSE_INDIRECT) {
232                 if (channel == -1) return "DiffInd";
233                 if (channel == 0) return "DiffInd.R";
234                 if (channel == 1) return "DiffInd.G";
235                 return "DiffInd.B";
236         }
237         if (passtype == SCE_PASS_DIFFUSE_COLOR) {
238                 if (channel == -1) return "DiffCol";
239                 if (channel == 0) return "DiffCol.R";
240                 if (channel == 1) return "DiffCol.G";
241                 return "DiffCol.B";
242         }
243         if (passtype == SCE_PASS_GLOSSY_DIRECT) {
244                 if (channel == -1) return "GlossDir";
245                 if (channel == 0) return "GlossDir.R";
246                 if (channel == 1) return "GlossDir.G";
247                 return "GlossDir.B";
248         }
249         if (passtype == SCE_PASS_GLOSSY_INDIRECT) {
250                 if (channel == -1) return "GlossInd";
251                 if (channel == 0) return "GlossInd.R";
252                 if (channel == 1) return "GlossInd.G";
253                 return "GlossInd.B";
254         }
255         if (passtype == SCE_PASS_GLOSSY_COLOR) {
256                 if (channel == -1) return "GlossCol";
257                 if (channel == 0) return "GlossCol.R";
258                 if (channel == 1) return "GlossCol.G";
259                 return "GlossCol.B";
260         }
261         if (passtype == SCE_PASS_TRANSM_DIRECT) {
262                 if (channel == -1) return "TransDir";
263                 if (channel == 0) return "TransDir.R";
264                 if (channel == 1) return "TransDir.G";
265                 return "TransDir.B";
266         }
267         if (passtype == SCE_PASS_TRANSM_INDIRECT) {
268                 if (channel == -1) return "TransInd";
269                 if (channel == 0) return "TransInd.R";
270                 if (channel == 1) return "TransInd.G";
271                 return "TransInd.B";
272         }
273         if (passtype == SCE_PASS_TRANSM_COLOR) {
274                 if (channel == -1) return "TransCol";
275                 if (channel == 0) return "TransCol.R";
276                 if (channel == 1) return "TransCol.G";
277                 return "TransCol.B";
278         }
279         return "Unknown";
280 }
281
282 static int passtype_from_name(const char *str)
283 {
284         
285         if (strcmp(str, "Combined") == 0)
286                 return SCE_PASS_COMBINED;
287
288         if (strcmp(str, "Depth") == 0)
289                 return SCE_PASS_Z;
290
291         if (strcmp(str, "Vector") == 0)
292                 return SCE_PASS_VECTOR;
293
294         if (strcmp(str, "Normal") == 0)
295                 return SCE_PASS_NORMAL;
296
297         if (strcmp(str, "UV") == 0)
298                 return SCE_PASS_UV;
299
300         if (strcmp(str, "Color") == 0)
301                 return SCE_PASS_RGBA;
302
303         if (strcmp(str, "Emit") == 0)
304                 return SCE_PASS_EMIT;
305
306         if (strcmp(str, "Diffuse") == 0)
307                 return SCE_PASS_DIFFUSE;
308
309         if (strcmp(str, "Spec") == 0)
310                 return SCE_PASS_SPEC;
311
312         if (strcmp(str, "Shadow") == 0)
313                 return SCE_PASS_SHADOW;
314         
315         if (strcmp(str, "AO") == 0)
316                 return SCE_PASS_AO;
317
318         if (strcmp(str, "Env") == 0)
319                 return SCE_PASS_ENVIRONMENT;
320
321         if (strcmp(str, "Indirect") == 0)
322                 return SCE_PASS_INDIRECT;
323
324         if (strcmp(str, "Reflect") == 0)
325                 return SCE_PASS_REFLECT;
326
327         if (strcmp(str, "Refract") == 0)
328                 return SCE_PASS_REFRACT;
329
330         if (strcmp(str, "IndexOB") == 0)
331                 return SCE_PASS_INDEXOB;
332
333         if (strcmp(str, "IndexMA") == 0)
334                 return SCE_PASS_INDEXMA;
335
336         if (strcmp(str, "Mist") == 0)
337                 return SCE_PASS_MIST;
338         
339         if (strcmp(str, "RayHits") == 0)
340                 return SCE_PASS_RAYHITS;
341
342         if (strcmp(str, "DiffDir") == 0)
343                 return SCE_PASS_DIFFUSE_DIRECT;
344
345         if (strcmp(str, "DiffInd") == 0)
346                 return SCE_PASS_DIFFUSE_INDIRECT;
347
348         if (strcmp(str, "DiffCol") == 0)
349                 return SCE_PASS_DIFFUSE_COLOR;
350
351         if (strcmp(str, "GlossDir") == 0)
352                 return SCE_PASS_GLOSSY_DIRECT;
353
354         if (strcmp(str, "GlossInd") == 0)
355                 return SCE_PASS_GLOSSY_INDIRECT;
356
357         if (strcmp(str, "GlossCol") == 0)
358                 return SCE_PASS_GLOSSY_COLOR;
359
360         if (strcmp(str, "TransDir") == 0)
361                 return SCE_PASS_TRANSM_DIRECT;
362
363         if (strcmp(str, "TransInd") == 0)
364                 return SCE_PASS_TRANSM_INDIRECT;
365
366         if (strcmp(str, "TransCol") == 0)
367                 return SCE_PASS_TRANSM_COLOR;
368
369         return 0;
370 }
371
372 /********************************** New **************************************/
373
374 static void render_layer_add_pass(RenderResult *rr, RenderLayer *rl, int channels, int passtype)
375 {
376         const char *typestr = get_pass_name(passtype, 0);
377         RenderPass *rpass = MEM_callocN(sizeof(RenderPass), typestr);
378         int rectsize = rr->rectx * rr->recty * channels;
379         
380         BLI_addtail(&rl->passes, rpass);
381         rpass->passtype = passtype;
382         rpass->channels = channels;
383         rpass->rectx = rl->rectx;
384         rpass->recty = rl->recty;
385         BLI_strncpy(rpass->name, get_pass_name(rpass->passtype, -1), sizeof(rpass->name));
386         
387         if (rr->exrhandle) {
388                 int a;
389                 for (a = 0; a < channels; a++)
390                         IMB_exr_add_channel(rr->exrhandle, rl->name, get_pass_name(passtype, a), 0, 0, NULL);
391         }
392         else {
393                 float *rect;
394                 int x;
395                 
396                 rpass->rect = MEM_mapallocN(sizeof(float) * rectsize, typestr);
397                 
398                 if (passtype == SCE_PASS_VECTOR) {
399                         /* initialize to max speed */
400                         rect = rpass->rect;
401                         for (x = rectsize - 1; x >= 0; x--)
402                                 rect[x] = PASS_VECTOR_MAX;
403                 }
404                 else if (passtype == SCE_PASS_Z) {
405                         rect = rpass->rect;
406                         for (x = rectsize - 1; x >= 0; x--)
407                                 rect[x] = 10e10;
408                 }
409         }
410 }
411
412 /* called by main render as well for parts */
413 /* will read info from Render *re to define layers */
414 /* called in threads */
415 /* re->winx,winy is coordinate space of entire image, partrct the part within */
416 RenderResult *render_result_new(Render *re, rcti *partrct, int crop, int savebuffers)
417 {
418         RenderResult *rr;
419         RenderLayer *rl;
420         SceneRenderLayer *srl;
421         int rectx, recty, nr;
422         
423         rectx = BLI_RCT_SIZE_X(partrct);
424         recty = BLI_RCT_SIZE_Y(partrct);
425         
426         if (rectx <= 0 || recty <= 0)
427                 return NULL;
428         
429         rr = MEM_callocN(sizeof(RenderResult), "new render result");
430         rr->rectx = rectx;
431         rr->recty = recty;
432         rr->renrect.xmin = 0; rr->renrect.xmax = rectx - 2 * crop;
433         /* crop is one or two extra pixels rendered for filtering, is used for merging and display too */
434         rr->crop = crop;
435         
436         /* tilerect is relative coordinates within render disprect. do not subtract crop yet */
437         rr->tilerect.xmin = partrct->xmin - re->disprect.xmin;
438         rr->tilerect.xmax = partrct->xmax - re->disprect.xmax;
439         rr->tilerect.ymin = partrct->ymin - re->disprect.ymin;
440         rr->tilerect.ymax = partrct->ymax - re->disprect.ymax;
441         
442         if (savebuffers) {
443                 rr->exrhandle = IMB_exr_get_handle();
444         }
445         
446         /* check renderdata for amount of layers */
447         for (nr = 0, srl = re->r.layers.first; srl; srl = srl->next, nr++) {
448                 
449                 if ((re->r.scemode & R_SINGLE_LAYER) && nr != re->r.actlay)
450                         continue;
451                 if (srl->layflag & SCE_LAY_DISABLE)
452                         continue;
453                 
454                 rl = MEM_callocN(sizeof(RenderLayer), "new render layer");
455                 BLI_addtail(&rr->layers, rl);
456                 
457                 BLI_strncpy(rl->name, srl->name, sizeof(rl->name));
458                 rl->lay = srl->lay;
459                 rl->lay_zmask = srl->lay_zmask;
460                 rl->lay_exclude = srl->lay_exclude;
461                 rl->layflag = srl->layflag;
462                 rl->passflag = srl->passflag; /* for debugging: srl->passflag | SCE_PASS_RAYHITS; */
463                 rl->pass_xor = srl->pass_xor;
464                 rl->light_override = srl->light_override;
465                 rl->mat_override = srl->mat_override;
466                 rl->rectx = rectx;
467                 rl->recty = recty;
468                 
469                 if (rr->exrhandle) {
470                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.R", 0, 0, NULL);
471                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.G", 0, 0, NULL);
472                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.B", 0, 0, NULL);
473                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.A", 0, 0, NULL);
474                 }
475                 else
476                         rl->rectf = MEM_mapallocN(rectx * recty * sizeof(float) * 4, "Combined rgba");
477                 
478                 if (srl->passflag  & SCE_PASS_Z)
479                         render_layer_add_pass(rr, rl, 1, SCE_PASS_Z);
480                 if (srl->passflag  & SCE_PASS_VECTOR)
481                         render_layer_add_pass(rr, rl, 4, SCE_PASS_VECTOR);
482                 if (srl->passflag  & SCE_PASS_NORMAL)
483                         render_layer_add_pass(rr, rl, 3, SCE_PASS_NORMAL);
484                 if (srl->passflag  & SCE_PASS_UV) 
485                         render_layer_add_pass(rr, rl, 3, SCE_PASS_UV);
486                 if (srl->passflag  & SCE_PASS_RGBA)
487                         render_layer_add_pass(rr, rl, 4, SCE_PASS_RGBA);
488                 if (srl->passflag  & SCE_PASS_EMIT)
489                         render_layer_add_pass(rr, rl, 3, SCE_PASS_EMIT);
490                 if (srl->passflag  & SCE_PASS_DIFFUSE)
491                         render_layer_add_pass(rr, rl, 3, SCE_PASS_DIFFUSE);
492                 if (srl->passflag  & SCE_PASS_SPEC)
493                         render_layer_add_pass(rr, rl, 3, SCE_PASS_SPEC);
494                 if (srl->passflag  & SCE_PASS_AO)
495                         render_layer_add_pass(rr, rl, 3, SCE_PASS_AO);
496                 if (srl->passflag  & SCE_PASS_ENVIRONMENT)
497                         render_layer_add_pass(rr, rl, 3, SCE_PASS_ENVIRONMENT);
498                 if (srl->passflag  & SCE_PASS_INDIRECT)
499                         render_layer_add_pass(rr, rl, 3, SCE_PASS_INDIRECT);
500                 if (srl->passflag  & SCE_PASS_SHADOW)
501                         render_layer_add_pass(rr, rl, 3, SCE_PASS_SHADOW);
502                 if (srl->passflag  & SCE_PASS_REFLECT)
503                         render_layer_add_pass(rr, rl, 3, SCE_PASS_REFLECT);
504                 if (srl->passflag  & SCE_PASS_REFRACT)
505                         render_layer_add_pass(rr, rl, 3, SCE_PASS_REFRACT);
506                 if (srl->passflag  & SCE_PASS_INDEXOB)
507                         render_layer_add_pass(rr, rl, 1, SCE_PASS_INDEXOB);
508                 if (srl->passflag  & SCE_PASS_INDEXMA)
509                         render_layer_add_pass(rr, rl, 1, SCE_PASS_INDEXMA);
510                 if (srl->passflag  & SCE_PASS_MIST)
511                         render_layer_add_pass(rr, rl, 1, SCE_PASS_MIST);
512                 if (rl->passflag & SCE_PASS_RAYHITS)
513                         render_layer_add_pass(rr, rl, 4, SCE_PASS_RAYHITS);
514                 if (srl->passflag  & SCE_PASS_DIFFUSE_DIRECT)
515                         render_layer_add_pass(rr, rl, 3, SCE_PASS_DIFFUSE_DIRECT);
516                 if (srl->passflag  & SCE_PASS_DIFFUSE_INDIRECT)
517                         render_layer_add_pass(rr, rl, 3, SCE_PASS_DIFFUSE_INDIRECT);
518                 if (srl->passflag  & SCE_PASS_DIFFUSE_COLOR)
519                         render_layer_add_pass(rr, rl, 3, SCE_PASS_DIFFUSE_COLOR);
520                 if (srl->passflag  & SCE_PASS_GLOSSY_DIRECT)
521                         render_layer_add_pass(rr, rl, 3, SCE_PASS_GLOSSY_DIRECT);
522                 if (srl->passflag  & SCE_PASS_GLOSSY_INDIRECT)
523                         render_layer_add_pass(rr, rl, 3, SCE_PASS_GLOSSY_INDIRECT);
524                 if (srl->passflag  & SCE_PASS_GLOSSY_COLOR)
525                         render_layer_add_pass(rr, rl, 3, SCE_PASS_GLOSSY_COLOR);
526                 if (srl->passflag  & SCE_PASS_TRANSM_DIRECT)
527                         render_layer_add_pass(rr, rl, 3, SCE_PASS_TRANSM_DIRECT);
528                 if (srl->passflag  & SCE_PASS_TRANSM_INDIRECT)
529                         render_layer_add_pass(rr, rl, 3, SCE_PASS_TRANSM_INDIRECT);
530                 if (srl->passflag  & SCE_PASS_TRANSM_COLOR)
531                         render_layer_add_pass(rr, rl, 3, SCE_PASS_TRANSM_COLOR);
532                 
533         }
534         /* sss, previewrender and envmap don't do layers, so we make a default one */
535         if (rr->layers.first == NULL) {
536                 rl = MEM_callocN(sizeof(RenderLayer), "new render layer");
537                 BLI_addtail(&rr->layers, rl);
538                 
539                 rl->rectx = rectx;
540                 rl->recty = recty;
541
542                 /* duplicate code... */
543                 if (rr->exrhandle) {
544                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.R", 0, 0, NULL);
545                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.G", 0, 0, NULL);
546                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.B", 0, 0, NULL);
547                         IMB_exr_add_channel(rr->exrhandle, rl->name, "Combined.A", 0, 0, NULL);
548                 }
549                 else
550                         rl->rectf = MEM_mapallocN(rectx * recty * sizeof(float) * 4, "Combined rgba");
551                 
552                 /* note, this has to be in sync with scene.c */
553                 rl->lay = (1 << 20) - 1;
554                 rl->layflag = 0x7FFF;    /* solid ztra halo strand */
555                 rl->passflag = SCE_PASS_COMBINED;
556                 
557                 re->r.actlay = 0;
558         }
559         
560         /* border render; calculate offset for use in compositor. compo is centralized coords */
561         rr->xof = re->disprect.xmin + BLI_RCT_CENTER_X(&re->disprect) - (re->winx / 2);
562         rr->yof = re->disprect.ymin + BLI_RCT_CENTER_Y(&re->disprect) - (re->winy / 2);
563         
564         return rr;
565 }
566
567 /* allocate osa new results for samples */
568 RenderResult *render_result_new_full_sample(Render *re, ListBase *lb, rcti *partrct, int crop, int savebuffers)
569 {
570         int a;
571         
572         if (re->osa == 0)
573                 return render_result_new(re, partrct, crop, savebuffers);
574         
575         for (a = 0; a < re->osa; a++) {
576                 RenderResult *rr = render_result_new(re, partrct, crop, savebuffers);
577                 BLI_addtail(lb, rr);
578                 rr->sample_nr = a;
579         }
580         
581         return lb->first;
582 }
583
584 /* callbacks for render_result_new_from_exr */
585 static void *ml_addlayer_cb(void *base, const char *str)
586 {
587         RenderResult *rr = base;
588         RenderLayer *rl;
589         
590         rl = MEM_callocN(sizeof(RenderLayer), "new render layer");
591         BLI_addtail(&rr->layers, rl);
592         
593         BLI_strncpy(rl->name, str, EXR_LAY_MAXNAME);
594         return rl;
595 }
596
597 static void ml_addpass_cb(void *UNUSED(base), void *lay, const char *str, float *rect, int totchan, const char *chan_id)
598 {
599         RenderLayer *rl = lay;
600         RenderPass *rpass = MEM_callocN(sizeof(RenderPass), "loaded pass");
601         int a;
602         
603         BLI_addtail(&rl->passes, rpass);
604         rpass->channels = totchan;
605
606         rpass->passtype = passtype_from_name(str);
607         if (rpass->passtype == 0) printf("unknown pass %s\n", str);
608         rl->passflag |= rpass->passtype;
609         
610         BLI_strncpy(rpass->name, str, EXR_PASS_MAXNAME);
611         /* channel id chars */
612         for (a = 0; a < totchan; a++)
613                 rpass->chan_id[a] = chan_id[a];
614         
615         rpass->rect = rect;
616 }
617
618 /* from imbuf, if a handle was returned we convert this to render result */
619 RenderResult *render_result_new_from_exr(void *exrhandle, int rectx, int recty)
620 {
621         RenderResult *rr = MEM_callocN(sizeof(RenderResult), __func__);
622         RenderLayer *rl;
623         RenderPass *rpass;
624         
625         rr->rectx = rectx;
626         rr->recty = recty;
627         
628         IMB_exr_multilayer_convert(exrhandle, rr, ml_addlayer_cb, ml_addpass_cb);
629
630         for (rl = rr->layers.first; rl; rl = rl->next) {
631                 rl->rectx = rectx;
632                 rl->recty = recty;
633
634                 for (rpass = rl->passes.first; rpass; rpass = rpass->next) {
635                         rpass->rectx = rectx;
636                         rpass->recty = recty;
637                 }
638         }
639         
640         return rr;
641 }
642
643 /*********************************** Merge ***********************************/
644
645 static void do_merge_tile(RenderResult *rr, RenderResult *rrpart, float *target, float *tile, int pixsize)
646 {
647         int y, ofs, copylen, tilex, tiley;
648         
649         copylen = tilex = rrpart->rectx;
650         tiley = rrpart->recty;
651         
652         if (rrpart->crop) { /* filters add pixel extra */
653                 tile += pixsize * (rrpart->crop + rrpart->crop * tilex);
654                 
655                 copylen = tilex - 2 * rrpart->crop;
656                 tiley -= 2 * rrpart->crop;
657                 
658                 ofs = (rrpart->tilerect.ymin + rrpart->crop) * rr->rectx + (rrpart->tilerect.xmin + rrpart->crop);
659                 target += pixsize * ofs;
660         }
661         else {
662                 ofs = (rrpart->tilerect.ymin * rr->rectx + rrpart->tilerect.xmin);
663                 target += pixsize * ofs;
664         }
665
666         copylen *= sizeof(float) * pixsize;
667         tilex *= pixsize;
668         ofs = pixsize * rr->rectx;
669
670         for (y = 0; y < tiley; y++) {
671                 memcpy(target, tile, copylen);
672                 target += ofs;
673                 tile += tilex;
674         }
675 }
676
677 /* used when rendering to a full buffer, or when reading the exr part-layer-pass file */
678 /* no test happens here if it fits... we also assume layers are in sync */
679 /* is used within threads */
680 void render_result_merge(RenderResult *rr, RenderResult *rrpart)
681 {
682         RenderLayer *rl, *rlp;
683         RenderPass *rpass, *rpassp;
684         
685         for (rl = rr->layers.first, rlp = rrpart->layers.first; rl && rlp; rl = rl->next, rlp = rlp->next) {
686                 
687                 /* combined */
688                 if (rl->rectf && rlp->rectf)
689                         do_merge_tile(rr, rrpart, rl->rectf, rlp->rectf, 4);
690                 
691                 /* passes are allocated in sync */
692                 for (rpass = rl->passes.first, rpassp = rlp->passes.first; rpass && rpassp; rpass = rpass->next, rpassp = rpassp->next) {
693                         do_merge_tile(rr, rrpart, rpass->rect, rpassp->rect, rpass->channels);
694                 }
695         }
696 }
697
698 /* for passes read from files, these have names stored */
699 static char *make_pass_name(RenderPass *rpass, int chan)
700 {
701         static char name[16];
702         int len;
703         
704         BLI_strncpy(name, rpass->name, EXR_PASS_MAXNAME);
705         len = strlen(name);
706         name[len] = '.';
707         name[len + 1] = rpass->chan_id[chan];
708         name[len + 2] = 0;
709
710         return name;
711 }
712
713 /* filename already made absolute */
714 /* called from within UI, saves both rendered result as a file-read result */
715 int RE_WriteRenderResult(ReportList *reports, RenderResult *rr, const char *filename, int compress)
716 {
717         RenderLayer *rl;
718         RenderPass *rpass;
719         void *exrhandle = IMB_exr_get_handle();
720         int success;
721
722         BLI_make_existing_file(filename);
723         
724         /* composite result */
725         if (rr->rectf) {
726                 IMB_exr_add_channel(exrhandle, "Composite", "Combined.R", 4, 4 * rr->rectx, rr->rectf);
727                 IMB_exr_add_channel(exrhandle, "Composite", "Combined.G", 4, 4 * rr->rectx, rr->rectf + 1);
728                 IMB_exr_add_channel(exrhandle, "Composite", "Combined.B", 4, 4 * rr->rectx, rr->rectf + 2);
729                 IMB_exr_add_channel(exrhandle, "Composite", "Combined.A", 4, 4 * rr->rectx, rr->rectf + 3);
730         }
731         
732         /* add layers/passes and assign channels */
733         for (rl = rr->layers.first; rl; rl = rl->next) {
734                 
735                 /* combined */
736                 if (rl->rectf) {
737                         int a, xstride = 4;
738                         for (a = 0; a < xstride; a++)
739                                 IMB_exr_add_channel(exrhandle, rl->name, get_pass_name(SCE_PASS_COMBINED, a), 
740                                                     xstride, xstride * rr->rectx, rl->rectf + a);
741                 }
742                 
743                 /* passes are allocated in sync */
744                 for (rpass = rl->passes.first; rpass; rpass = rpass->next) {
745                         int a, xstride = rpass->channels;
746                         for (a = 0; a < xstride; a++) {
747                                 if (rpass->passtype)
748                                         IMB_exr_add_channel(exrhandle, rl->name, get_pass_name(rpass->passtype, a), 
749                                                             xstride, xstride * rr->rectx, rpass->rect + a);
750                                 else
751                                         IMB_exr_add_channel(exrhandle, rl->name, make_pass_name(rpass, a), 
752                                                             xstride, xstride * rr->rectx, rpass->rect + a);
753                         }
754                 }
755         }
756
757         /* when the filename has no permissions, this can fail */
758         if (IMB_exr_begin_write(exrhandle, filename, rr->rectx, rr->recty, compress)) {
759                 IMB_exr_write_channels(exrhandle);
760                 success = TRUE;
761         }
762         else {
763                 /* TODO, get the error from openexr's exception */
764                 BKE_report(reports, RPT_ERROR, "Error Writing Render Result, see console");
765                 success = FALSE;
766         }
767         IMB_exr_close(exrhandle);
768
769         return success;
770 }
771
772 /**************************** Single Layer Rendering *************************/
773
774 void render_result_single_layer_begin(Render *re)
775 {
776         /* all layers except the active one get temporally pushed away */
777
778         /* officially pushed result should be NULL... error can happen with do_seq */
779         RE_FreeRenderResult(re->pushedresult);
780         
781         re->pushedresult = re->result;
782         re->result = NULL;
783 }
784
785 /* if scemode is R_SINGLE_LAYER, at end of rendering, merge the both render results */
786 void render_result_single_layer_end(Render *re)
787 {
788         SceneRenderLayer *srl;
789         RenderLayer *rlpush;
790         RenderLayer *rl;
791         int nr;
792
793         if (re->result == NULL) {
794                 printf("pop render result error; no current result!\n");
795                 return;
796         }
797
798         if (!re->pushedresult)
799                 return;
800
801         if (re->pushedresult->rectx == re->result->rectx && re->pushedresult->recty == re->result->recty) {
802                 /* find which layer in re->pushedresult should be replaced */
803                 rl = re->result->layers.first;
804                 
805                 /* render result should be empty after this */
806                 BLI_remlink(&re->result->layers, rl);
807                 
808                 /* reconstruct render result layers */
809                 for (nr = 0, srl = re->scene->r.layers.first; srl; srl = srl->next, nr++) {
810                         if (nr == re->r.actlay)
811                                 BLI_addtail(&re->result->layers, rl);
812                         else {
813                                 rlpush = RE_GetRenderLayer(re->pushedresult, srl->name);
814                                 if (rlpush) {
815                                         BLI_remlink(&re->pushedresult->layers, rlpush);
816                                         BLI_addtail(&re->result->layers, rlpush);
817                                 }
818                         }
819                 }
820         }
821
822         RE_FreeRenderResult(re->pushedresult);
823         re->pushedresult = NULL;
824 }
825
826 /************************* EXR Tile File Rendering ***************************/
827
828 static void save_render_result_tile(RenderResult *rr, RenderResult *rrpart)
829 {
830         RenderLayer *rlp;
831         RenderPass *rpassp;
832         int offs, partx, party;
833         
834         BLI_lock_thread(LOCK_IMAGE);
835         
836         for (rlp = rrpart->layers.first; rlp; rlp = rlp->next) {
837                 
838                 if (rrpart->crop) { /* filters add pixel extra */
839                         offs = (rrpart->crop + rrpart->crop * rrpart->rectx);
840                 }
841                 else {
842                         offs = 0;
843                 }
844                 
845                 /* combined */
846                 if (rlp->rectf) {
847                         int a, xstride = 4;
848                         for (a = 0; a < xstride; a++)
849                                 IMB_exr_set_channel(rr->exrhandle, rlp->name, get_pass_name(SCE_PASS_COMBINED, a), 
850                                                     xstride, xstride * rrpart->rectx, rlp->rectf + a + xstride * offs);
851                 }
852                 
853                 /* passes are allocated in sync */
854                 for (rpassp = rlp->passes.first; rpassp; rpassp = rpassp->next) {
855                         int a, xstride = rpassp->channels;
856                         for (a = 0; a < xstride; a++)
857                                 IMB_exr_set_channel(rr->exrhandle, rlp->name, get_pass_name(rpassp->passtype, a), 
858                                                     xstride, xstride * rrpart->rectx, rpassp->rect + a + xstride * offs);
859                 }
860                 
861         }
862
863         party = rrpart->tilerect.ymin + rrpart->crop;
864         partx = rrpart->tilerect.xmin + rrpart->crop;
865         IMB_exrtile_write_channels(rr->exrhandle, partx, party, 0);
866
867         BLI_unlock_thread(LOCK_IMAGE);
868 }
869
870 static void save_empty_result_tiles(Render *re)
871 {
872         RenderPart *pa;
873         RenderResult *rr;
874         
875         for (rr = re->result; rr; rr = rr->next) {
876                 IMB_exrtile_clear_channels(rr->exrhandle);
877                 
878                 for (pa = re->parts.first; pa; pa = pa->next) {
879                         if (pa->ready == 0) {
880                                 int party = pa->disprect.ymin - re->disprect.ymin + pa->crop;
881                                 int partx = pa->disprect.xmin - re->disprect.xmin + pa->crop;
882                                 IMB_exrtile_write_channels(rr->exrhandle, partx, party, 0);
883                         }
884                 }
885         }
886 }
887
888 /* begin write of exr tile file */
889 void render_result_exr_file_begin(Render *re)
890 {
891         RenderResult *rr;
892         char str[FILE_MAX];
893         
894         for (rr = re->result; rr; rr = rr->next) {
895                 render_result_exr_file_path(re->scene, rr->sample_nr, str);
896         
897                 printf("write exr tmp file, %dx%d, %s\n", rr->rectx, rr->recty, str);
898                 IMB_exrtile_begin_write(rr->exrhandle, str, 0, rr->rectx, rr->recty, re->partx, re->party);
899         }
900 }
901
902 /* end write of exr tile file, read back first sample */
903 void render_result_exr_file_end(Render *re)
904 {
905         RenderResult *rr;
906
907         save_empty_result_tiles(re);
908         
909         for (rr = re->result; rr; rr = rr->next) {
910                 IMB_exr_close(rr->exrhandle);
911                 rr->exrhandle = NULL;
912         }
913         
914         render_result_free_list(&re->fullresult, re->result);
915         re->result = NULL;
916
917         render_result_exr_file_read(re, 0);
918 }
919
920 /* save part into exr file */
921 void render_result_exr_file_merge(RenderResult *rr, RenderResult *rrpart)
922 {
923         for (; rr && rrpart; rr = rr->next, rrpart = rrpart->next)
924                 save_render_result_tile(rr, rrpart);
925 }
926
927 /* path to temporary exr file */
928 void render_result_exr_file_path(Scene *scene, int sample, char *filepath)
929 {
930         char di[FILE_MAX], name[FILE_MAXFILE + MAX_ID_NAME + 100], fi[FILE_MAXFILE];
931         
932         BLI_strncpy(di, G.main->name, FILE_MAX);
933         BLI_splitdirstring(di, fi);
934         
935         if (sample == 0)
936                 BLI_snprintf(name, sizeof(name), "%s_%s.exr", fi, scene->id.name + 2);
937         else
938                 BLI_snprintf(name, sizeof(name), "%s_%s%d.exr", fi, scene->id.name + 2, sample);
939
940         BLI_make_file_string("/", filepath, BLI_temporary_dir(), name);
941 }
942
943 /* only for temp buffer files, makes exact copy of render result */
944 int render_result_exr_file_read(Render *re, int sample)
945 {
946         char str[FILE_MAX];
947         int success;
948
949         RE_FreeRenderResult(re->result);
950         re->result = render_result_new(re, &re->disprect, 0, RR_USE_MEM);
951
952         render_result_exr_file_path(re->scene, sample, str);
953         printf("read exr tmp file: %s\n", str);
954
955         if (render_result_exr_file_read_path(re->result, str)) {
956                 success = TRUE;
957         }
958         else {
959                 printf("cannot read: %s\n", str);
960                 success = FALSE;
961
962         }
963
964         return success;
965 }
966
967 /* called for reading temp files, and for external engines */
968 int render_result_exr_file_read_path(RenderResult *rr, const char *filepath)
969 {
970         RenderLayer *rl;
971         RenderPass *rpass;
972         void *exrhandle = IMB_exr_get_handle();
973         int rectx, recty;
974
975         if (IMB_exr_begin_read(exrhandle, filepath, &rectx, &recty) == 0) {
976                 printf("failed being read %s\n", filepath);
977                 IMB_exr_close(exrhandle);
978                 return 0;
979         }
980
981         if (rr == NULL || rectx != rr->rectx || recty != rr->recty) {
982                 if (rr)
983                         printf("error in reading render result: dimensions don't match\n");
984                 else
985                         printf("error in reading render result: NULL result pointer\n");
986                 IMB_exr_close(exrhandle);
987                 return 0;
988         }
989
990         for (rl = rr->layers.first; rl; rl = rl->next) {
991                 /* combined */
992                 if (rl->rectf) {
993                         int a, xstride = 4;
994                         for (a = 0; a < xstride; a++)
995                                 IMB_exr_set_channel(exrhandle, rl->name, get_pass_name(SCE_PASS_COMBINED, a), 
996                                                     xstride, xstride * rectx, rl->rectf + a);
997                 }
998                 
999                 /* passes are allocated in sync */
1000                 for (rpass = rl->passes.first; rpass; rpass = rpass->next) {
1001                         int a, xstride = rpass->channels;
1002                         for (a = 0; a < xstride; a++)
1003                                 IMB_exr_set_channel(exrhandle, rl->name, get_pass_name(rpass->passtype, a), 
1004                                                     xstride, xstride * rectx, rpass->rect + a);
1005
1006                         BLI_strncpy(rpass->name, get_pass_name(rpass->passtype, -1), sizeof(rpass->name));
1007                 }
1008         }
1009
1010         IMB_exr_read_channels(exrhandle);
1011         IMB_exr_close(exrhandle);
1012
1013         return 1;
1014 }
1015
1016 /*************************** Combined Pixel Rect *****************************/
1017
1018 ImBuf *render_result_rect_to_ibuf(RenderResult *rr, RenderData *rd)
1019 {
1020         int flags = (rd->color_mgt_flag & R_COLOR_MANAGEMENT_PREDIVIDE) ? IB_cm_predivide : 0;
1021         ImBuf *ibuf = IMB_allocImBuf(rr->rectx, rr->recty, rd->im_format.planes, flags);
1022         
1023         /* if not exists, BKE_imbuf_write makes one */
1024         ibuf->rect = (unsigned int *)rr->rect32;
1025         ibuf->rect_float = rr->rectf;
1026         ibuf->zbuf_float = rr->rectz;
1027         
1028         /* float factor for random dither, imbuf takes care of it */
1029         ibuf->dither = rd->dither_intensity;
1030         
1031         /* prepare to gamma correct to sRGB color space */
1032         if (rd->color_mgt_flag & R_COLOR_MANAGEMENT) {
1033                 /* sequence editor can generate 8bpc render buffers */
1034                 if (ibuf->rect) {
1035                         ibuf->profile = IB_PROFILE_SRGB;
1036                         if (BKE_imtype_valid_depths(rd->im_format.imtype) & (R_IMF_CHAN_DEPTH_12 | R_IMF_CHAN_DEPTH_16 | R_IMF_CHAN_DEPTH_24 | R_IMF_CHAN_DEPTH_32))
1037                                 IMB_float_from_rect(ibuf);
1038                 }
1039                 else {
1040                         ibuf->profile = IB_PROFILE_LINEAR_RGB;
1041                 }
1042         }
1043
1044         /* color -> grayscale */
1045         /* editing directly would alter the render view */
1046         if (rd->im_format.planes == R_IMF_PLANES_BW) {
1047                 ImBuf *ibuf_bw = IMB_dupImBuf(ibuf);
1048                 IMB_color_to_bw(ibuf_bw);
1049                 IMB_freeImBuf(ibuf);
1050                 ibuf = ibuf_bw;
1051         }
1052
1053         return ibuf;
1054 }
1055
1056 void render_result_rect_from_ibuf(RenderResult *rr, RenderData *rd, ImBuf *ibuf)
1057 {
1058         if (ibuf->rect_float) {
1059                 /* color management: when off ensure rectf is non-lin, since thats what the internal
1060                  * render engine delivers */
1061                 int profile_to = (rd->color_mgt_flag & R_COLOR_MANAGEMENT) ? IB_PROFILE_LINEAR_RGB : IB_PROFILE_SRGB;
1062                 int profile_from = (ibuf->profile == IB_PROFILE_LINEAR_RGB) ? IB_PROFILE_LINEAR_RGB : IB_PROFILE_SRGB;
1063                 int predivide = (rd->color_mgt_flag & R_COLOR_MANAGEMENT_PREDIVIDE);
1064
1065                 if (!rr->rectf)
1066                         rr->rectf = MEM_mallocN(4 * sizeof(float) * rr->rectx * rr->recty, "render_seq rectf");
1067                 
1068                 IMB_buffer_float_from_float(rr->rectf, ibuf->rect_float,
1069                                             4, profile_to, profile_from, predivide,
1070                                             rr->rectx, rr->recty, rr->rectx, rr->rectx);
1071                 
1072                 /* TSK! Since sequence render doesn't free the *rr render result, the old rect32
1073                  * can hang around when sequence render has rendered a 32 bits one before */
1074                 if (rr->rect32) {
1075                         MEM_freeN(rr->rect32);
1076                         rr->rect32 = NULL;
1077                 }
1078         }
1079         else if (ibuf->rect) {
1080                 if (!rr->rect32)
1081                         rr->rect32 = MEM_mallocN(sizeof(int) * rr->rectx * rr->recty, "render_seq rect");
1082
1083                 memcpy(rr->rect32, ibuf->rect, 4 * rr->rectx * rr->recty);
1084
1085                 /* Same things as above, old rectf can hang around from previous render. */
1086                 if (rr->rectf) {
1087                         MEM_freeN(rr->rectf);
1088                         rr->rectf = NULL;
1089                 }
1090         }
1091 }
1092
1093 void render_result_rect_fill_zero(RenderResult *rr)
1094 {
1095         if (rr->rectf)
1096                 memset(rr->rectf, 0, 4 * sizeof(float) * rr->rectx * rr->recty);
1097         else if (rr->rect32)
1098                 memset(rr->rect32, 0, 4 * rr->rectx * rr->recty);
1099         else
1100                 rr->rect32 = MEM_callocN(sizeof(int) * rr->rectx * rr->recty, "render_seq rect");
1101 }
1102
1103 void render_result_rect_get_pixels(RenderResult *rr, RenderData *rd, unsigned int *rect, int rectx, int recty)
1104 {
1105         if (rr->rect32) {
1106                 memcpy(rect, rr->rect32, sizeof(int) * rr->rectx * rr->recty);
1107         }
1108         else if (rr->rectf) {
1109                 int profile_from = (rd->color_mgt_flag & R_COLOR_MANAGEMENT) ? IB_PROFILE_LINEAR_RGB : IB_PROFILE_SRGB;
1110                 int predivide = (rd->color_mgt_flag & R_COLOR_MANAGEMENT_PREDIVIDE);
1111                 int dither = 0;
1112
1113                 IMB_buffer_byte_from_float((unsigned char *)rect, rr->rectf,
1114                                            4, dither, IB_PROFILE_SRGB, profile_from, predivide,
1115                                            rr->rectx, rr->recty, rr->rectx, rr->rectx);
1116         }
1117         else
1118                 /* else fill with black */
1119                 memset(rect, 0, sizeof(int) * rectx * recty);
1120 }
1121