cd6426fdf95a5b6409f061f463a8ab3980da93db
[platform/core/uifw/libtdm.git] / src / tdm_helper.c
1 /**************************************************************************
2  *
3  * libtdm
4  *
5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
6  *
7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
9  *          Taeheon Kim <th908.kim@samsung.com>,
10  *          YoungJun Cho <yj44.cho@samsung.com>,
11  *          SooChan Lim <sc1.lim@samsung.com>,
12  *          Boram Park <sc1.lim@samsung.com>
13  *
14  * Permission is hereby granted, free of charge, to any person obtaining a
15  * copy of this software and associated documentation files (the
16  * "Software"), to deal in the Software without restriction, including
17  * without limitation the rights to use, copy, modify, merge, publish,
18  * distribute, sub license, and/or sell copies of the Software, and to
19  * permit persons to whom the Software is furnished to do so, subject to
20  * the following conditions:
21  *
22  * The above copyright notice and this permission notice (including the
23  * next paragraph) shall be included in all copies or substantial portions
24  * of the Software.
25  *
26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33  *
34 **************************************************************************/
35
36 #ifdef HAVE_CONFIG_H
37 #include "config.h"
38 #endif
39
40 #include <png.h>
41 #include <pixman.h>
42
43 #include "tdm_private.h"
44
45 #define PNG_DEPTH 8
46
47 static const char *file_exts[2] = {"png", "yuv"};
48
49 int tdm_dump_enable;
50 char *tdm_debug_dump_dir;
51
52 EXTERN double
53 tdm_helper_get_time(void)
54 {
55         struct timespec tp;
56
57         if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)
58                 return (double)tp.tv_sec + ((double)tp.tv_nsec) / 1000000000.0;
59
60         return 0;
61 }
62
63 static int
64 _tdm_helper_check_file_is_valid(const char* path, int del_link)
65 {
66         char *real_path;
67
68         if (!path)
69                 return 0;
70
71         real_path = realpath(path, NULL);
72         if (real_path && strncmp(path, real_path, strlen(path))) {
73                 if (del_link)
74                         unlink(path);
75                 free(real_path);
76
77                 return 0;
78         }
79
80         if (real_path)
81                 free(real_path);
82
83         return 1;
84 }
85
86 static void
87 _tdm_helper_dump_raw(const char *file, void *data1, int size1, void *data2,
88                                          int size2, void *data3, int size3)
89 {
90         unsigned int *blocks;
91         FILE *fp;
92
93         if (!_tdm_helper_check_file_is_valid(file, 1))
94                 TDM_WRN("'%s' may be symbolic link\n", file);
95
96         fp = fopen(file, "w+");
97         TDM_RETURN_IF_FAIL(fp != NULL);
98
99         blocks = (unsigned int *)data1;
100         fwrite(blocks, 1, size1, fp);
101
102         if (size2 > 0) {
103                 blocks = (unsigned int *)data2;
104                 fwrite(blocks, 1, size2, fp);
105         }
106
107         if (size3 > 0) {
108                 blocks = (unsigned int *)data3;
109                 fwrite(blocks, 1, size3, fp);
110         }
111
112         fclose(fp);
113 }
114
115 static void
116 _tdm_helper_dump_png(const char *file, const void *data, int width,
117                                          int height)
118 {
119         FILE *fp;
120
121         if (!_tdm_helper_check_file_is_valid(file, 1))
122                 TDM_WRN("'%s' may be symbolic link\n", file);
123
124         fp = fopen(file, "wb");
125         TDM_RETURN_IF_FAIL(fp != NULL);
126
127         png_structp pPngStruct =
128                 png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
129         if (!pPngStruct) {
130                 fclose(fp);
131                 return;
132         }
133
134         png_infop pPngInfo = png_create_info_struct(pPngStruct);
135         if (!pPngInfo) {
136                 png_destroy_write_struct(&pPngStruct, NULL);
137                 fclose(fp);
138                 return;
139         }
140
141         png_init_io(pPngStruct, fp);
142         png_set_IHDR(pPngStruct,
143                                  pPngInfo,
144                                  width,
145                                  height,
146                                  PNG_DEPTH,
147                                  PNG_COLOR_TYPE_RGBA,
148                                  PNG_INTERLACE_NONE,
149                                  PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
150
151         png_set_bgr(pPngStruct);
152         png_write_info(pPngStruct, pPngInfo);
153
154         const int pixel_size = 4;       // RGBA
155         png_bytep *row_pointers =
156                 png_malloc(pPngStruct, height * sizeof(png_byte *));
157         if (!row_pointers) {
158                 png_destroy_write_struct(&pPngStruct, &pPngInfo);
159                 fclose(fp);
160                 return;
161         }
162
163         unsigned int *blocks = (unsigned int *)data;
164         int y = 0;
165         int x = 0;
166
167         for (; y < height; ++y) {
168                 png_bytep row =
169                         png_malloc(pPngStruct, sizeof(png_byte) * width * pixel_size);
170                 if (!row) {
171                         for (x = 0; x < y; x++)
172                                 png_free(pPngStruct, row_pointers[x]);
173                         png_free(pPngStruct, row_pointers);
174                         png_destroy_write_struct(&pPngStruct, &pPngInfo);
175                         fclose(fp);
176                         return;
177                 }
178
179                 row_pointers[y] = (png_bytep)row;
180                 for (x = 0; x < width; ++x) {
181                         unsigned int curBlock = blocks[y * width + x];
182                         row[x * pixel_size] = (curBlock & 0xFF);
183                         row[1 + x * pixel_size] = (curBlock >> 8) & 0xFF;
184                         row[2 + x * pixel_size] = (curBlock >> 16) & 0xFF;
185                         row[3 + x * pixel_size] = (curBlock >> 24) & 0xFF;
186                 }
187         }
188
189         png_write_image(pPngStruct, row_pointers);
190         png_write_end(pPngStruct, pPngInfo);
191
192         for (y = 0; y < height; y++)
193                 png_free(pPngStruct, row_pointers[y]);
194         png_free(pPngStruct, row_pointers);
195
196         png_destroy_write_struct(&pPngStruct, &pPngInfo);
197
198         fclose(fp);
199 }
200
201 /* LCOV_EXCL_START */
202 INTERN char *
203 tdm_helper_dump_make_directory(const char *path, char *reply, int *len)
204 {
205         char *fullpath = NULL;
206         time_t timer;
207         struct tm *t, *buf = NULL;
208
209         timer = time(NULL);
210
211         buf = calloc(1, sizeof(struct tm));
212         TDM_GOTO_IF_FAIL(buf != NULL, failed_make);
213
214         fullpath = calloc(1, TDM_PATH_LEN * sizeof(char));
215         TDM_GOTO_IF_FAIL(fullpath != NULL, failed_make);
216
217         t = localtime_r(&timer, buf);
218         TDM_GOTO_IF_FAIL(t != NULL, failed_make);
219
220         snprintf(fullpath, TDM_PATH_LEN, "%s/dump_%04d%02d%02d.%02d%02d%02d", path,
221                          t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec);
222
223         if ((mkdir(fullpath, 0755)) < 0) {
224                 TDM_ERR("mkdir '%s' fail\n", fullpath);
225                 TDM_SNPRINTF(reply, len, "mkdir '%s' fail\n", fullpath);
226                 goto failed_make;
227         }
228
229         free(buf);
230
231         return fullpath;
232 failed_make:
233         if (fullpath)
234                 free(fullpath);
235         if (buf)
236                 free(buf);
237         return NULL;
238 }
239
240 EXTERN void
241 tdm_helper_dump_buffer_str(tbm_surface_h buffer, char *dir, char *str)
242 {
243         tbm_surface_info_s info;
244         char file[TDM_PATH_LEN];
245         int ret, bw, bh;
246
247         TDM_RETURN_IF_FAIL(buffer != NULL);
248         TDM_RETURN_IF_FAIL(str != NULL);
249
250         if (!dir)
251                 dir = ".";
252
253         ret = tbm_surface_get_info(buffer, &info);
254         TDM_RETURN_IF_FAIL(ret == TBM_SURFACE_ERROR_NONE);
255
256         tdm_helper_get_buffer_full_size(buffer, &bw, &bh);
257
258         snprintf(file, TDM_PATH_LEN, "%s/%c%c%c%c_%dx%d_%dx%d_%s",
259                          dir, FOURCC_STR(info.format), bw, bh, info.width, info.height, str);
260
261         tdm_helper_dump_buffer(buffer, file);
262 }
263 /* LCOV_EXCL_STOP */
264
265 EXTERN void
266 tdm_helper_dump_buffer(tbm_surface_h buffer, const char *file)
267 {
268         char temp[TDM_PATH_LEN] = {0,};
269         tbm_surface_info_s info;
270         int len, ret;
271         const char *ext;
272         int bo_cnt;
273         int bw, bh;
274         char *dot, *p = temp;
275
276         TDM_RETURN_IF_FAIL(buffer != NULL);
277         TDM_RETURN_IF_FAIL(file != NULL);
278
279         ret = tbm_surface_map(buffer, TBM_OPTION_READ, &info);
280         TDM_RETURN_IF_FAIL(ret == TBM_SURFACE_ERROR_NONE);
281
282         if (IS_RGB(info.format))
283                 ext = file_exts[0];
284         else
285                 ext = file_exts[1];
286
287         dot = strrchr(file, '.');
288         if (!dot || strlen(dot + 1) != 3 || strncmp(dot + 1, ext, 3)) {
289                 len = strnlen(file, TDM_PATH_LEN - 5);
290                 strncat(p, file, len);
291                 p += len;
292                 *(p++) = '.';
293                 strncat(p, ext, 3);
294                 p += 3;
295                 *p = '\0';
296         }
297
298         tdm_helper_get_buffer_full_size(buffer, &bw, &bh);
299
300         bo_cnt = tbm_surface_internal_get_num_bos(buffer);
301         TDM_DBG("buffer: bo_cnt(%d) %dx%d(%dx%d) %c%c%c%c, plane: (%p+%d, %d,%d) (%p+%d, %d,%d) (%p+%d, %d,%d)",
302                         bo_cnt, bw, bh, info.width, info.height, FOURCC_STR(info.format),
303                         info.planes[0].ptr, info.planes[0].offset, info.planes[0].stride, info.planes[0].size,
304                         info.planes[1].ptr, info.planes[1].offset, info.planes[1].stride, info.planes[1].size,
305                         info.planes[2].ptr, info.planes[2].offset, info.planes[2].stride, info.planes[2].size);
306
307         switch (info.format) {
308         case TBM_FORMAT_ARGB8888:
309         case TBM_FORMAT_XRGB8888:
310                 _tdm_helper_dump_png(temp, info.planes[0].ptr, bw, bh);
311                 break;
312         case TBM_FORMAT_YVU420:
313         case TBM_FORMAT_YUV420:
314                 _tdm_helper_dump_raw((const char*)temp,
315                                                          info.planes[0].ptr,
316                                                          info.planes[0].size,
317                                                          info.planes[1].ptr,
318                                                          info.planes[1].size,
319                                                          info.planes[2].ptr,
320                                                          info.planes[2].size);
321                 break;
322         case TBM_FORMAT_NV12:
323         case TBM_FORMAT_NV21:
324                 _tdm_helper_dump_raw((const char*)temp,
325                                                          info.planes[0].ptr,
326                                                          info.planes[0].size,
327                                                          info.planes[1].ptr,
328                                                          info.planes[1].size, NULL,
329                                                          0);
330                 break;
331         case TBM_FORMAT_YUYV:
332         case TBM_FORMAT_UYVY:
333                 _tdm_helper_dump_raw((const char*)temp,
334                                                          info.planes[0].ptr,
335                                                          info.planes[0].size, NULL, 0,
336                                                          NULL, 0);
337                 break;
338         default:
339                 TDM_ERR("can't dump %c%c%c%c buffer", FOURCC_STR(info.format));
340                 tbm_surface_unmap(buffer);
341                 return;
342         }
343
344         tbm_surface_unmap(buffer);
345
346         TDM_INFO("dump %s", temp);
347 }
348
349 EXTERN void
350 tdm_helper_clear_buffer_color(tbm_surface_h buffer, tdm_pos *pos, unsigned int color)
351 {
352         tbm_surface_info_s info;
353         int ret;
354
355         TDM_RETURN_IF_FAIL(buffer != NULL);
356
357         ret = tbm_surface_map(buffer, TBM_OPTION_READ, &info);
358         TDM_RETURN_IF_FAIL(ret == TBM_SURFACE_ERROR_NONE);
359
360         switch (info.format) {
361         case TBM_FORMAT_ARGB8888:
362         case TBM_FORMAT_XRGB8888:
363                 if (!pos) {
364                         memset(info.planes[0].ptr, 0, info.planes[0].stride * info.height);
365                 } else {
366                         unsigned char *p;
367                         int x, y;
368                         for (y = pos->y; y <= (pos->y + pos->h); y++) {
369                                 p = info.planes[0].ptr + info.planes[0].stride * y;
370                                 for (x = pos->x; x <= (pos->x + pos->w); x++) {
371                                         unsigned int *ibuf = (unsigned int*)p;
372                                         ibuf[x] = color;
373                                 }
374                         }
375                 }
376                 break;
377         case TBM_FORMAT_YVU420:
378         case TBM_FORMAT_YUV420:
379                 memset((char*)info.planes[0].ptr, 0x10, info.planes[0].stride * info.height);
380                 memset((char*)info.planes[1].ptr, 0x80, info.planes[1].stride * (info.height >> 1));
381                 memset((char*)info.planes[2].ptr, 0x80, info.planes[2].stride * (info.height >> 1));
382                 break;
383         case TBM_FORMAT_NV12:
384         case TBM_FORMAT_NV21:
385                 memset((char*)info.planes[0].ptr, 0x10, info.planes[0].stride * info.height);
386                 memset((char*)info.planes[1].ptr, 0x80, info.planes[1].stride * (info.height >> 1));
387                 break;
388         case TBM_FORMAT_YUYV: {
389                 int *ibuf = (int*)info.planes[0].ptr;
390                 int i, size = info.planes[0].stride * info.height / 4;
391
392                 for (i = 0 ; i < size ; i++)
393                         ibuf[i] = 0x10801080;
394         }
395         break;
396         case TBM_FORMAT_UYVY: {
397                 int *ibuf = (int*)info.planes[0].ptr;
398                 int i, size = info.planes[0].stride * info.height / 4;
399
400                 for (i = 0 ; i < size ; i++)
401                         ibuf[i] = 0x80108010; /* YUYV -> 0xVYUY */
402         }
403         break;
404         default:
405                 TDM_ERR("can't clear %c%c%c%c buffer", FOURCC_STR(info.format));
406                 break;
407         }
408
409         tbm_surface_unmap(buffer);
410 }
411
412 EXTERN void
413 tdm_helper_clear_buffer_pos(tbm_surface_h buffer, tdm_pos *pos)
414 {
415         TDM_RETURN_IF_FAIL(buffer != NULL);
416
417         tdm_helper_clear_buffer_color(buffer, pos, 0);
418 }
419
420 EXTERN void
421 tdm_helper_clear_buffer(tbm_surface_h buffer)
422 {
423         TDM_RETURN_IF_FAIL(buffer != NULL);
424
425         tdm_helper_clear_buffer_pos(buffer, NULL);
426 }
427
428 EXTERN void
429 tdm_helper_get_buffer_full_size(tbm_surface_h buffer, int *buffer_w, int *buffer_h)
430 {
431         tbm_surface_info_s info;
432         int ret;
433
434         TDM_RETURN_IF_FAIL(buffer != NULL);
435
436         ret = tbm_surface_get_info(buffer, &info);
437         TDM_RETURN_IF_FAIL(ret == TBM_SURFACE_ERROR_NONE);
438
439         if (buffer_w) {
440                 if (IS_RGB(info.format))
441                         *buffer_w = info.planes[0].stride >> 2;
442                 else
443                         *buffer_w = info.planes[0].stride;
444         }
445
446         if (buffer_h)
447                 *buffer_h = info.planes[0].size / info.planes[0].stride;
448 }
449
450 static pixman_format_code_t
451 _tdm_helper_pixman_format_get(tbm_format format)
452 {
453         switch (format) {
454         case TBM_FORMAT_ARGB8888:
455                 return PIXMAN_a8r8g8b8;
456         case TBM_FORMAT_XRGB8888:
457                 return PIXMAN_x8r8g8b8;
458         default:
459                 return 0;
460         }
461
462         return 0;
463 }
464
465 EXTERN tdm_error
466 tdm_helper_convert_buffer(tbm_surface_h srcbuf, tbm_surface_h dstbuf,
467                                                   tdm_pos *srcpos, tdm_pos *dstpos,
468                                                   tdm_transform transform, int over)
469 {
470         tbm_surface_info_s src_info, dst_info;
471         pixman_image_t *src_img = NULL, *dst_img = NULL;
472         pixman_format_code_t src_format, dst_format;
473         double scale_x, scale_y;
474         int rotate_step, bos;
475         pixman_transform_t t;
476         struct pixman_f_transform ft;
477         pixman_op_t op;
478         int src_stride, dst_stride;
479         int buf_width, err;
480         tdm_error ret = TDM_ERROR_OPERATION_FAILED;
481
482         TDM_RETURN_VAL_IF_FAIL(srcbuf != NULL, TDM_ERROR_INVALID_PARAMETER);
483         TDM_RETURN_VAL_IF_FAIL(dstbuf != NULL, TDM_ERROR_INVALID_PARAMETER);
484
485         bos = tbm_surface_internal_get_num_bos(srcbuf);
486         TDM_RETURN_VAL_IF_FAIL(bos == 1, TDM_ERROR_OPERATION_FAILED);
487
488         bos = tbm_surface_internal_get_num_bos(dstbuf);
489         TDM_RETURN_VAL_IF_FAIL(bos == 1, TDM_ERROR_OPERATION_FAILED);
490
491         err = tbm_surface_map(srcbuf, TBM_OPTION_READ, &src_info);
492         TDM_RETURN_VAL_IF_FAIL(err == TBM_SURFACE_ERROR_NONE, TDM_ERROR_OPERATION_FAILED);
493
494         err = tbm_surface_map(dstbuf, TBM_OPTION_WRITE, &dst_info);
495         TDM_GOTO_IF_FAIL(err == TBM_SURFACE_ERROR_NONE, unmap_srcbuf);
496
497         /* not handle buffers which have 2 more gem handles */
498         TDM_GOTO_IF_FAIL(src_info.planes[0].ptr != NULL, unmap_dstbuf);
499         TDM_GOTO_IF_FAIL(dst_info.planes[0].ptr != NULL, unmap_dstbuf);
500
501         src_format = _tdm_helper_pixman_format_get(src_info.format);
502         TDM_GOTO_IF_FAIL(src_format > 0, unmap_dstbuf);
503         dst_format = _tdm_helper_pixman_format_get(dst_info.format);
504         TDM_GOTO_IF_FAIL(dst_format > 0, unmap_dstbuf);
505
506         buf_width = src_info.planes[0].stride >> 2;
507         src_stride = src_info.planes[0].stride;
508         src_img = pixman_image_create_bits(src_format, buf_width, src_info.height,
509                                                                            (uint32_t*)src_info.planes[0].ptr, src_stride);
510         TDM_GOTO_IF_FAIL(src_img, unref_img);
511
512         buf_width = dst_info.planes[0].stride >> 2;
513         dst_stride = dst_info.planes[0].stride;
514         dst_img = pixman_image_create_bits(dst_format, buf_width, dst_info.height,
515                                                                            (uint32_t*)dst_info.planes[0].ptr, dst_stride);
516         TDM_GOTO_IF_FAIL(dst_img, unref_img);
517
518         pixman_f_transform_init_identity(&ft);
519
520         if (transform & TDM_TRANSFORM_FLIPPED) {
521                 pixman_f_transform_scale(&ft, NULL, -1, 1);
522                 pixman_f_transform_translate(&ft, NULL, dstpos->w, 0);
523         }
524
525         rotate_step = transform & 0x3;
526         if (rotate_step > 0) {
527                 int c, s, tx = 0, ty = 0;
528                 switch (rotate_step) {
529                 case 1:
530                         c = 0, s = -1, tx = -dstpos->w;
531                         break;
532                 case 2:
533                         c = -1, s = 0, tx = -dstpos->w, ty = -dstpos->h;
534                         break;
535                 case 3:
536                         c = 0, s = 1, ty = -dstpos->h;
537                         break;
538                 }
539                 pixman_f_transform_translate(&ft, NULL, tx, ty);
540                 pixman_f_transform_rotate(&ft, NULL, c, s);
541         }
542
543         if (rotate_step % 2 == 0) {
544                 scale_x = (double)srcpos->w / dstpos->w;
545                 scale_y = (double)srcpos->h / dstpos->h;
546         } else {
547                 scale_x = (double)srcpos->w / dstpos->h;
548                 scale_y = (double)srcpos->h / dstpos->w;
549         }
550
551         pixman_f_transform_scale(&ft, NULL, scale_x, scale_y);
552         pixman_f_transform_translate(&ft, NULL, srcpos->x, srcpos->y);
553         pixman_transform_from_pixman_f_transform(&t, &ft);
554         pixman_image_set_transform(src_img, &t);
555
556         op = (!over) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER;
557
558         pixman_image_composite(op, src_img, NULL, dst_img, 0, 0, 0, 0,
559                                                    dstpos->x, dstpos->y, dstpos->w, dstpos->h);
560
561         ret = TDM_ERROR_NONE;
562
563 unref_img:
564         if (src_img)
565                 pixman_image_unref(src_img);
566         if (dst_img)
567                 pixman_image_unref(dst_img);
568 unmap_dstbuf:
569         tbm_surface_unmap(dstbuf);
570 unmap_srcbuf:
571         tbm_surface_unmap(srcbuf);
572
573         return ret;
574 }
575
576 /* LCOV_EXCL_START */
577 EXTERN int
578 tdm_helper_get_fd(const char *env)
579 {
580         if (strncmp(env, "TBM_DRM_MASTER_FD", 17) && strncmp(env, "TDM_DRM_MASTER_FD", 17)) {
581                 TDM_INFO("DEPRECATED! '%s'", env);
582                 return -1;
583         }
584
585         return tbm_drm_helper_get_master_fd();
586 }
587
588 EXTERN void
589 tdm_helper_set_fd(const char *env, int fd)
590 {
591         if (strncmp(env, "TBM_DRM_MASTER_FD", 17) && strncmp(env, "TDM_DRM_MASTER_FD", 17)) {
592                 TDM_INFO("DEPRECATED! '%s'", env);
593                 return;
594         }
595
596         tbm_drm_helper_set_tbm_master_fd(fd);
597 }
598 /* LCOV_EXCL_STOP */
599
600 EXTERN void
601 tdm_helper_dump_start(char *dumppath, int *count)
602 {
603         if (dumppath == NULL || count == NULL) {
604                 TDM_DBG("tdm_helper_dump dumppath or count is null.");
605                 return;
606         }
607
608         tdm_dump_enable = 1;
609
610         TDM_DBG("tdm_helper_dump start.(path : %s)", dumppath);
611 }
612
613 EXTERN void
614 tdm_helper_dump_stop(void)
615 {
616         tdm_dump_enable = 0;
617
618         TDM_DBG("tdm_helper_dump stop.");
619 }
620
621 /* LCOV_EXCL_START */
622 static tdm_error
623 _tdm_helper_buffer_convert(tbm_surface_h srcbuf, tbm_surface_h dstbuf,
624                                                    int dx, int dy, int dw, int dh, int count)
625 {
626         pixman_image_t *src_img = NULL, *dst_img = NULL;
627         pixman_format_code_t src_format, dst_format;
628         pixman_transform_t t;
629         struct pixman_f_transform ft;
630         pixman_op_t op;
631         tbm_surface_info_s src_info = {0, };
632         tbm_surface_info_s dst_info = {0, };
633         int stride, width;
634         double scale_x, scale_y;
635
636         TDM_RETURN_VAL_IF_FAIL(srcbuf != NULL, TDM_ERROR_INVALID_PARAMETER);
637         TDM_RETURN_VAL_IF_FAIL(dstbuf != NULL, TDM_ERROR_INVALID_PARAMETER);
638
639         if (tbm_surface_map(srcbuf, TBM_SURF_OPTION_READ, &src_info) != TBM_SURFACE_ERROR_NONE) {
640                 TDM_ERR("cannot mmap srcbuf\n");
641                 return TDM_ERROR_OPERATION_FAILED;
642         }
643
644         if (tbm_surface_map(dstbuf, TBM_SURF_OPTION_WRITE, &dst_info) != TBM_SURFACE_ERROR_NONE) {
645                 TDM_ERR("cannot mmap dstbuf\n");
646                 tbm_surface_unmap(srcbuf);
647                 return TDM_ERROR_OPERATION_FAILED;
648         }
649         TDM_GOTO_IF_FAIL(src_info.num_planes == 1, cant_convert);
650         TDM_GOTO_IF_FAIL(dst_info.num_planes == 1, cant_convert);
651
652         /* src */
653         src_format = _tdm_helper_pixman_format_get(src_info.format);
654         TDM_GOTO_IF_FAIL(src_format > 0, cant_convert);
655
656         width = src_info.planes[0].stride / 4;
657         stride = src_info.planes[0].stride;
658         src_img = pixman_image_create_bits(src_format, width, src_info.height,
659                                                                            (uint32_t*)src_info.planes[0].ptr, stride);
660         TDM_GOTO_IF_FAIL(src_img != NULL, cant_convert);
661
662         /* dst */
663         dst_format = _tdm_helper_pixman_format_get(dst_info.format);
664         TDM_GOTO_IF_FAIL(dst_format > 0, cant_convert);
665
666         width = dst_info.planes[0].stride / 4;
667         stride = dst_info.planes[0].stride;
668         dst_img = pixman_image_create_bits(dst_format, width, dst_info.height,
669                                                                            (uint32_t*)dst_info.planes[0].ptr, stride);
670         TDM_GOTO_IF_FAIL(dst_img != NULL, cant_convert);
671
672         pixman_f_transform_init_identity(&ft);
673
674         scale_x = (double)src_info.width / dw;
675         scale_y = (double)src_info.height / dh;
676
677         pixman_f_transform_scale(&ft, NULL, scale_x, scale_y);
678         pixman_f_transform_translate(&ft, NULL, 0, 0);
679         pixman_transform_from_pixman_f_transform(&t, &ft);
680         pixman_image_set_transform(src_img, &t);
681
682         if (count == 0)
683                 op = PIXMAN_OP_SRC;
684         else
685                 op = PIXMAN_OP_OVER;
686
687         pixman_image_composite(op, src_img, NULL, dst_img,
688                                                    0, 0, 0, 0, dx, dy, dw, dh);
689
690         if (src_img)
691                 pixman_image_unref(src_img);
692         if (dst_img)
693                 pixman_image_unref(dst_img);
694
695         tbm_surface_unmap(srcbuf);
696         tbm_surface_unmap(dstbuf);
697
698         return TDM_ERROR_NONE;
699
700 cant_convert:
701         if (src_img)
702                 pixman_image_unref(src_img);
703
704         tbm_surface_unmap(srcbuf);
705         tbm_surface_unmap(dstbuf);
706
707         return TDM_ERROR_OPERATION_FAILED;
708 }
709 /* LCOV_EXCL_STOP */
710
711
712 EXTERN tdm_error
713 tdm_helper_capture_output(tdm_output *output, tbm_surface_h dst_buffer,
714                                                   int x, int y, int w, int h,
715                                                   tdm_helper_capture_handler func, void *data)
716 {
717         tbm_surface_h surface;
718         tdm_error err;
719         int i, count, first = 0;
720
721         TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
722         TDM_RETURN_VAL_IF_FAIL(dst_buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
723         TDM_RETURN_VAL_IF_FAIL(x >= 0, TDM_ERROR_INVALID_PARAMETER);
724         TDM_RETURN_VAL_IF_FAIL(y >= 0, TDM_ERROR_INVALID_PARAMETER);
725         TDM_RETURN_VAL_IF_FAIL(w >= 0, TDM_ERROR_INVALID_PARAMETER);
726         TDM_RETURN_VAL_IF_FAIL(h >= 0, TDM_ERROR_INVALID_PARAMETER);
727         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
728         TDM_RETURN_VAL_IF_FAIL(data != NULL, TDM_ERROR_INVALID_PARAMETER);
729
730         err = tdm_output_get_layer_count(output, &count);
731         if (err != TDM_ERROR_NONE) {
732                 TDM_ERR("tdm_output_get_layer_count fail(%d)\n", err);
733                 return TDM_ERROR_OPERATION_FAILED;
734         }
735         if (count <= 0) {
736                 TDM_ERR("tdm_output_get_layer_count err(%d, %d)\n", err, count);
737                 return TDM_ERROR_BAD_MODULE;
738         }
739
740         for (i = count - 1; i >= 0; i--) {
741                 tdm_layer *layer = tdm_output_get_layer(output, i, NULL);
742
743                 surface = tdm_layer_get_displaying_buffer(layer, &err);
744                 if (err != TDM_ERROR_NONE)
745                         continue;
746
747                 err = _tdm_helper_buffer_convert(surface, dst_buffer, x, y, w, h, first++);
748                 if (err != TDM_ERROR_NONE)
749                         TDM_DBG("convert fail %d-layer buffer\n", i);
750                 else
751                         TDM_DBG("convert success %d-layer buffer\n", i);
752         }
753
754         func(dst_buffer, data);
755
756         return TDM_ERROR_NONE;
757 }
758
759 EXTERN void
760 tdm_helper_get_display_information(tdm_display *dpy, char *reply, int *len)
761 {
762         tdm_private_display *private_display;
763         tdm_backend_module *module_data;
764         tdm_func_output *func_output;
765         tdm_func_layer *func_layer;
766         tdm_private_output *private_output = NULL;
767         tdm_private_layer *private_layer = NULL;
768         tdm_private_pp *private_pp = NULL;
769         tdm_private_capture *private_capture = NULL;
770         tdm_error ret;
771         int i;
772
773         TDM_DBG_RETURN_IF_FAIL(dpy != NULL);
774
775         private_display = dpy;
776         func_output = &private_display->func_output;
777         func_layer = &private_display->func_layer;
778
779         /* module information */
780         module_data = private_display->module_data;
781         TDM_SNPRINTF(reply, len, "[TDM backend information]\n");
782         TDM_SNPRINTF(reply, len, "name: %s\n", module_data->name);
783         TDM_SNPRINTF(reply, len, "vendor: %s\n", module_data->vendor);
784         TDM_SNPRINTF(reply, len, "version: %d.%d\n\n",
785                                  (int)TDM_BACKEND_GET_ABI_MAJOR(module_data->abi_version),
786                                  (int)TDM_BACKEND_GET_ABI_MINOR(module_data->abi_version));
787
788         /* output information */
789         TDM_SNPRINTF(reply, len, "[Output information]\n");
790         TDM_SNPRINTF(reply, len, "--------------------------------------------------------------------------------------------\n");
791         TDM_SNPRINTF(reply, len, "idx   maker   model   name   type   status   dpms   subpixel   align_w   min   max   phy(mm)\n");
792         TDM_SNPRINTF(reply, len, "--------------------------------------------------------------------------------------------\n");
793         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
794                 TDM_SNPRINTF(reply, len, "%d   %s   %s   %s   %s   %s   %s   %u   %d   %dx%d   %dx%d   %ux%u\n",
795                                          private_output->index, private_output->caps.maker,
796                                          private_output->caps.model, private_output->caps.name,
797                                          tdm_conn_str(private_output->caps.type),
798                                          tdm_status_str(private_output->caps.status),
799                                          tdm_dpms_str(private_output->current_dpms_value),
800                                          private_output->caps.subpixel,
801                                          TDM_FRONT_VALUE(private_output->caps.preferred_align),
802                                          TDM_FRONT_VALUE(private_output->caps.min_w),
803                                          TDM_FRONT_VALUE(private_output->caps.min_h),
804                                          TDM_FRONT_VALUE(private_output->caps.max_w),
805                                          TDM_FRONT_VALUE(private_output->caps.max_h),
806                                          private_output->caps.mmWidth, private_output->caps.mmHeight);
807
808                 TDM_SNPRINTF(reply, len, "\t%u modes:\n", private_output->caps.mode_count);
809
810                 if (private_output->caps.mode_count > 0) {
811                         const tdm_output_mode *current_mode = NULL;
812
813                         TDM_DBG_RETURN_IF_FAIL(func_output->output_get_mode);
814                         ret = func_output->output_get_mode(private_output->output_backend, &current_mode);
815                         TDM_DBG_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
816
817                         TDM_SNPRINTF(reply, len, "\t\t name refresh (Hz) clk hdisp hss hse htot vdisp vss vse vtot vscan\n");
818                         for (i = 0; i < private_output->caps.mode_count; i++) {
819                                 char *current = (current_mode == private_output->caps.modes + i) ? "*" : " ";
820                                 TDM_SNPRINTF(reply, len, "\t\t%s%s %u %u %u %u %u %u %u %u %u %u %u ",
821                                                          current,
822                                                          private_output->caps.modes[i].name,
823                                                          private_output->caps.modes[i].vrefresh,
824                                                          private_output->caps.modes[i].clock,
825                                                          private_output->caps.modes[i].hdisplay,
826                                                          private_output->caps.modes[i].hsync_start,
827                                                          private_output->caps.modes[i].hsync_end,
828                                                          private_output->caps.modes[i].htotal,
829                                                          private_output->caps.modes[i].vdisplay,
830                                                          private_output->caps.modes[i].vsync_start,
831                                                          private_output->caps.modes[i].vsync_end,
832                                                          private_output->caps.modes[i].vtotal,
833                                                          private_output->caps.modes[i].vscan);
834                                 tdm_mode_flag_str(private_output->caps.modes[i].flags, &reply, len);
835                                 TDM_SNPRINTF(reply, len, " ");
836                                 tdm_mode_type_str(private_output->caps.modes[i].type, &reply, len);
837                                 TDM_SNPRINTF(reply, len, "\n");
838                         }
839                 }
840
841                 TDM_SNPRINTF(reply, len, "\t%d properties:\n", private_output->caps.prop_count);
842                 if (private_output->caps.prop_count > 0) {
843                         TDM_SNPRINTF(reply, len, "\t\tname\ttype\tidx\tvalue\n");
844                         for (i = 0; i < private_output->caps.prop_count; i++) {
845                                 tdm_value value;
846                                 TDM_DBG_RETURN_IF_FAIL(func_output->output_get_property);
847                                 ret = func_output->output_get_property(private_output->output_backend,
848                                                                                                            private_output->caps.props[i].id,
849                                                                                                            &value);
850                                 TDM_DBG_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
851                                 TDM_SNPRINTF(reply, len, "\t\t%s\t%s\t%u\t",
852                                                          private_output->caps.props[i].name,
853                                                          tdm_value_type_str(private_output->caps.props[i].type),
854                                                          private_output->caps.props[i].id);
855                                 switch (private_output->caps.props[i].type) {
856                                 case TDM_VALUE_TYPE_PTR:
857                                         TDM_SNPRINTF(reply, len, "%p\n", value.ptr);
858                                         break;
859                                 case TDM_VALUE_TYPE_INT32:
860                                         TDM_SNPRINTF(reply, len, "%d\n", value.s32);
861                                         break;
862                                 case TDM_VALUE_TYPE_INT64:
863                                         TDM_SNPRINTF(reply, len, "%"PRId64"\n", value.s64);
864                                         break;
865                                 case TDM_VALUE_TYPE_UINT64:
866                                         TDM_SNPRINTF(reply, len, "%"PRIu64"\n", value.u64);
867                                         break;
868                                 case TDM_VALUE_TYPE_UINT32:
869                                 default:
870                                         TDM_SNPRINTF(reply, len, "%u\n", value.u32);
871                                         break;
872                                 }
873                         }
874                 }
875         }
876         TDM_SNPRINTF(reply, len, "\n");
877
878         /* layer information */
879         TDM_SNPRINTF(reply, len, "[Layer information]\n");
880         TDM_SNPRINTF(reply, len, "-----------------------------------------------------------------------\n");
881         TDM_SNPRINTF(reply, len, "idx   output   zpos   buf   format   size   crop   geometry   transform\n");
882         TDM_SNPRINTF(reply, len, "-----------------------------------------------------------------------\n");
883         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
884                 LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
885                         if (!private_layer->usable) {
886                                 tdm_info_layer info;
887                                 unsigned int format;
888                                 tdm_size size;
889                                 tbm_surface_info_s buf_info;
890
891                                 TDM_DBG_RETURN_IF_FAIL(func_layer->layer_get_info);
892                                 memset(&info, 0, sizeof info);
893                                 ret = func_layer->layer_get_info(private_layer->layer_backend, &info);
894                                 TDM_DBG_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
895
896                                 if (!private_layer->showing_buffer)
897                                         continue;
898
899                                 format = tbm_surface_get_format(private_layer->showing_buffer->buffer);
900                                 tbm_surface_get_info(private_layer->showing_buffer->buffer, &buf_info);
901
902                                 if (IS_RGB(format))
903                                         size.h = buf_info.planes[0].stride >> 2;
904                                 else
905                                         size.h = buf_info.planes[0].stride;
906                                 size.v = tbm_surface_get_height(private_layer->showing_buffer->buffer);
907
908                                 if (info.src_config.format)
909                                         format = (info.src_config.format) ? : format;
910
911                                 TDM_SNPRINTF(reply, len, "%d   %d   %d   %p   %c%c%c%c   %ux%u   %ux%u+%u+%u   %ux%u+%u+%u   %s\n",
912                                                          private_layer->index,
913                                                          private_output->index,
914                                                          private_layer->caps.zpos,
915                                                          private_layer->showing_buffer->buffer, FOURCC_STR(format), size.h, size.v,
916                                                          info.src_config.pos.w, info.src_config.pos.h, info.src_config.pos.x, info.src_config.pos.y,
917                                                          info.dst_pos.w, info.dst_pos.h, info.dst_pos.x, info.dst_pos.y,
918                                                          tdm_transform_str(info.transform));
919                         } else {
920                                 TDM_SNPRINTF(reply, len, "%d   %d   %d   -\n",
921                                                          private_layer->index,
922                                                          private_output->index,
923                                                          private_layer->caps.zpos);
924                         }
925
926                         TDM_SNPRINTF(reply, len, "\tcaps\t: ");
927                         tdm_layer_caps_str(private_layer->caps.capabilities, &reply, len);
928                         TDM_SNPRINTF(reply, len, "\n");
929
930                         TDM_SNPRINTF(reply, len, "\tformats\t: ");
931                         if (private_layer->caps.format_count > 0) {
932                                 const char *sep = "";
933                                 for (i = 0; i < private_layer->caps.format_count; i++) {
934                                         if (private_layer->caps.formats[i] == 0)
935                                                 continue;
936                                         TDM_SNPRINTF(reply, len, "%s%c%c%c%c", sep, FOURCC_STR(private_layer->caps.formats[i]));
937                                         sep = ",";
938                                 }
939                                 TDM_SNPRINTF(reply, len, "\n");
940                         }
941
942                         TDM_SNPRINTF(reply, len, "\t%u properties:\n", private_layer->caps.prop_count);
943                         if (private_layer->caps.prop_count > 0) {
944                                 TDM_SNPRINTF(reply, len, "\t\tname\ttype\tidx\tvalue\n");
945                                 for (i = 0; i < private_layer->caps.prop_count; i++) {
946                                         tdm_value value;
947                                         TDM_DBG_RETURN_IF_FAIL(func_layer->layer_get_property);
948                                         ret = func_layer->layer_get_property(private_layer->layer_backend,
949                                                                                                                  private_layer->caps.props[i].id,
950                                                                                                                  &value);
951                                         TDM_DBG_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
952                                         TDM_SNPRINTF(reply, len, "\t\t%s\t%s\t%u\t",
953                                                                  private_layer->caps.props[i].name,
954                                                                  tdm_value_type_str(private_output->caps.props[i].type),
955                                                                  private_layer->caps.props[i].id);
956                                 switch (private_layer->caps.props[i].type) {
957                                 case TDM_VALUE_TYPE_PTR:
958                                         TDM_SNPRINTF(reply, len, "%p\n", value.ptr);
959                                         break;
960                                 case TDM_VALUE_TYPE_INT32:
961                                         TDM_SNPRINTF(reply, len, "%d\n", value.s32);
962                                         break;
963                                 case TDM_VALUE_TYPE_INT64:
964                                         TDM_SNPRINTF(reply, len, "%"PRId64"\n", value.s64);
965                                         break;
966                                 case TDM_VALUE_TYPE_UINT64:
967                                         TDM_SNPRINTF(reply, len, "%"PRIu64"\n", value.u64);
968                                         break;
969                                 case TDM_VALUE_TYPE_UINT32:
970                                 default:
971                                         TDM_SNPRINTF(reply, len, "%u\n", value.u32);
972                                         break;
973                                 }
974                                 }
975                         }
976                 }
977         }
978         TDM_SNPRINTF(reply, len, "\n");
979
980         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
981                 const char *sep = "";
982                 TDM_SNPRINTF(reply, len, "[PP information]\n");
983                 TDM_SNPRINTF(reply, len, "caps\t: ");
984                 tdm_pp_caps_str(private_display->caps_pp.capabilities, &reply, len);
985                 TDM_SNPRINTF(reply, len, "\n");
986                 TDM_SNPRINTF(reply, len, "formats\t: ");
987                 for (i = 0; i < private_display->caps_pp.format_count; i++) {
988                         if (private_display->caps_pp.formats[i] == 0)
989                                 continue;
990                         TDM_SNPRINTF(reply, len, "%s%c%c%c%c", sep, FOURCC_STR(private_display->caps_pp.formats[i]));
991                         sep = ",";
992                 }
993                 TDM_SNPRINTF(reply, len, "\n");
994                 TDM_SNPRINTF(reply, len, "size\t: min(%dx%d) max(%dx%d) align_w(%d)\n",
995                                          TDM_FRONT_VALUE(private_display->caps_pp.min_w),
996                                          TDM_FRONT_VALUE(private_display->caps_pp.min_h),
997                                          TDM_FRONT_VALUE(private_display->caps_pp.max_w),
998                                          TDM_FRONT_VALUE(private_display->caps_pp.max_h),
999                                          TDM_FRONT_VALUE(private_display->caps_pp.preferred_align));
1000                 if (!LIST_IS_EMPTY(&private_display->pp_list)) {
1001                         TDM_SNPRINTF(reply, len, "-------------------------------------------------------------\n");
1002                         TDM_SNPRINTF(reply, len, "src(format size crop)  |  dst(format size crop)  |  transform\n");
1003                         TDM_SNPRINTF(reply, len, "-------------------------------------------------------------\n");
1004                         LIST_FOR_EACH_ENTRY(private_pp, &private_display->pp_list, link) {
1005                                 TDM_SNPRINTF(reply, len, "%c%c%c%c %ux%u %ux%u+%u+%u | %c%c%c%c %ux%u %ux%u+%u+%u | %s\n",
1006                                                          FOURCC_STR(private_pp->info.src_config.format),
1007                                                          private_pp->info.src_config.size.h,
1008                                                          private_pp->info.src_config.size.v,
1009                                                          private_pp->info.src_config.pos.x, private_pp->info.src_config.pos.y,
1010                                                          private_pp->info.src_config.pos.w, private_pp->info.src_config.pos.h,
1011                                                          FOURCC_STR(private_pp->info.dst_config.format),
1012                                                          private_pp->info.dst_config.size.h,
1013                                                          private_pp->info.dst_config.size.v,
1014                                                          private_pp->info.dst_config.pos.x, private_pp->info.dst_config.pos.y,
1015                                                          private_pp->info.dst_config.pos.w, private_pp->info.dst_config.pos.h,
1016                                                          tdm_transform_str(private_pp->info.transform));
1017                         }
1018                 }
1019         } else {
1020                 TDM_SNPRINTF(reply, len, "[No PP capability]\n");
1021         }
1022         TDM_SNPRINTF(reply, len, "\n");
1023
1024         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
1025                 const char *sep = "";
1026                 TDM_SNPRINTF(reply, len, "[Capture information]\n");
1027                 TDM_SNPRINTF(reply, len, "caps\t: ");
1028                 tdm_capture_caps_str(private_display->caps_capture.capabilities, &reply, len);
1029                 TDM_SNPRINTF(reply, len, "\n");
1030                 TDM_SNPRINTF(reply, len, "formats\t: ");
1031                 for (i = 0; i < private_display->caps_capture.format_count; i++) {
1032                         if (private_display->caps_capture.formats[i] == 0)
1033                                 continue;
1034                         TDM_SNPRINTF(reply, len, "%s%c%c%c%c", sep, FOURCC_STR(private_display->caps_capture.formats[i]));
1035                         sep = ",";
1036                 }
1037                 TDM_SNPRINTF(reply, len, "\n");
1038                 TDM_SNPRINTF(reply, len, "size\t: min(%dx%d) max(%dx%d) align_w(%d)\n",
1039                                          TDM_FRONT_VALUE(private_display->caps_capture.min_w),
1040                                          TDM_FRONT_VALUE(private_display->caps_capture.min_h),
1041                                          TDM_FRONT_VALUE(private_display->caps_capture.max_w),
1042                                          TDM_FRONT_VALUE(private_display->caps_capture.max_h),
1043                                          TDM_FRONT_VALUE(private_display->caps_capture.preferred_align));
1044                 if (!LIST_IS_EMPTY(&private_display->capture_list)) {
1045                         TDM_SNPRINTF(reply, len, "-----------------------------------\n");
1046                         TDM_SNPRINTF(reply, len, "dst(format size crop)  |  transform\n");
1047                         TDM_SNPRINTF(reply, len, "-----------------------------------\n");
1048                         LIST_FOR_EACH_ENTRY(private_capture, &private_display->capture_list, link) {
1049                                 TDM_SNPRINTF(reply, len, "%c%c%c%c %ux%u %ux%u+%u+%u | %s\n",
1050                                                          FOURCC_STR(private_capture->info.dst_config.format),
1051                                                          private_capture->info.dst_config.size.h,
1052                                                          private_capture->info.dst_config.size.v,
1053                                                          private_capture->info.dst_config.pos.x, private_capture->info.dst_config.pos.y,
1054                                                          private_capture->info.dst_config.pos.w, private_capture->info.dst_config.pos.h,
1055                                                          tdm_transform_str(private_capture->info.transform));
1056                         }
1057                 }
1058         } else {
1059                 TDM_SNPRINTF(reply, len, "[No Capture capability]\n");
1060         }
1061         TDM_SNPRINTF(reply, len, "\n");
1062 }
1063
1064 /* LCOV_EXCL_START */
1065 EXTERN int
1066 tdm_helper_commit_per_vblank_enabled(tdm_display *dpy)
1067 {
1068         TDM_ERR("the deprecated function, use 'tdm_helper_output_commit_per_vblank_enabled' instead.");
1069
1070         return 0;
1071 }
1072 /* LCOV_EXCL_STOP */
1073
1074 EXTERN int
1075 tdm_helper_output_commit_per_vblank_enabled(tdm_output *output)
1076 {
1077         tdm_private_output *private_output = output;
1078
1079         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, -1);
1080
1081         return !!private_output->commit_per_vblank;
1082 }
1083