1 /**************************************************************************
5 * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
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>
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:
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
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.
34 **************************************************************************/
40 #include <tbm_surface.h>
41 #include <tbm_surface_queue.h>
42 #include <tbm_surface_internal.h>
44 #include "tdm_types.h"
52 * @brief The header file for a frontend user.
55 * #include <tdm.h> //for a frontend user
60 * @brief The display capability enumeration
63 TDM_DISPLAY_CAPABILITY_PP = (1 << 0), /**< if hardware supports pp operation */
64 TDM_DISPLAY_CAPABILITY_CAPTURE = (1 << 1), /**< if hardware supports capture operation */
65 } tdm_display_capability;
68 * @brief The output change handler
69 * @details This handler will be called when the status of a output object is
72 typedef void (*tdm_output_change_handler)(tdm_output *output,
73 tdm_output_change_type type,
78 * @brief Initialize a display object
79 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
80 * @return A display object
81 * @see tdm_display_deinit
84 tdm_display_init(tdm_error *error);
87 * @brief Deinitialize a display object
88 * @param[in] dpy A display object
89 * @see tdm_display_init
92 tdm_display_deinit(tdm_display *dpy);
95 * @brief Update a display object
97 * When new output is connected, a frontend user need to call this function.
98 * And a frontend user can the new output information with tdm_output_get_xxx functions.
99 * @param[in] dpy A display object
100 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
103 tdm_display_update(tdm_display *dpy);
106 * @brief Get the file descriptor
107 * @details TDM handles the events of fd with #tdm_display_handle_events.
108 * @param[in] dpy A display object
109 * @param[out] fd The file descriptor
110 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
111 * @see tdm_display_handle_events
114 tdm_display_get_fd(tdm_display *dpy, int *fd);
117 * @brief Handle the events
118 * @param[in] dpy A display object
119 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
120 * @see tdm_display_get_fd
123 tdm_display_handle_events(tdm_display *dpy);
126 * @brief Get the capabilities of a display object.
127 * @details A frontend user can get whether TDM supports pp/capture functionality with this function.
128 * @param[in] dpy A display object
129 * @param[out] capabilities The capabilities of a display object
130 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
133 tdm_display_get_capabilities(tdm_display *dpy,
134 tdm_display_capability *capabilities);
137 * @brief Get the pp capabilities of a display object.
138 * @param[in] dpy A display object
139 * @param[out] capabilities The pp capabilities
140 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
143 tdm_display_get_pp_capabilities(tdm_display *dpy,
144 tdm_pp_capability *capabilities);
147 * @brief Get the pp available format array of a display object.
148 * @param[in] dpy A display object
149 * @param[out] formats The pp available format array
150 * @param[out] count The count of formats
151 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
154 tdm_display_get_pp_available_formats(tdm_display *dpy,
155 const tbm_format **formats, int *count);
158 * @brief Get the pp available size of a display object.
159 * @details -1 means that a TDM backend module doesn't define the value.
160 * @param[in] dpy A display object
161 * @param[out] min_w The minimum width which TDM can handle
162 * @param[out] min_h The minimum height which TDM can handle
163 * @param[out] max_w The maximum width which TDM can handle
164 * @param[out] max_h The maximum height which TDM can handle
165 * @param[out] preferred_align The preferred align width which TDM can handle
166 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
169 tdm_display_get_pp_available_size(tdm_display *dpy, int *min_w, int *min_h,
170 int *max_w, int *max_h, int *preferred_align);
173 * @brief Get the capture capabilities of a display object.
174 * @param[in] dpy A display object
175 * @param[out] capabilities The capture capabilities
176 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
179 tdm_display_get_capture_capabilities(tdm_display *dpy,
180 tdm_capture_capability *capabilities);
183 * @brief Get the capture available format array of a display object.
184 * @param[in] dpy A display object
185 * @param[out] formats The capture available format array
186 * @param[out] count The count of formats
187 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
190 tdm_display_get_catpure_available_formats(tdm_display *dpy,
191 const tbm_format **formats, int *count);
194 * @brief Get the output counts which a display object has.
195 * @param[in] dpy A display object
196 * @param[out] count The count of outputs
197 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
198 * @see tdm_display_get_output
201 tdm_display_get_output_count(tdm_display *dpy, int *count);
204 * @brief Get a output object which has the given index.
205 * @param[in] dpy A display object
206 * @param[in] index The index of a output object
207 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
208 * @return A output object if success. Otherwise, NULL.
209 * @see tdm_display_get_output_count
212 tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error);
215 * @brief Create a pp object.
216 * @param[in] dpy A display object
217 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
218 * @return A pp object if success. Otherwise, NULL.
219 * @see tdm_pp_destroy
222 tdm_display_create_pp(tdm_display *dpy, tdm_error *error);
225 * @brief Get the model information of a output object.
226 * @param[in] output A output object
227 * @param[out] maker The output maker.
228 * @param[out] model The output model.
229 * @param[out] name The output name.
230 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
233 tdm_output_get_model_info(tdm_output *output, const char **maker,
234 const char **model, const char **name);
237 * @brief Get the connection status of a output object.
238 * @param[in] output A output object
239 * @param[out] status The connection status.
240 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
243 tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status);
246 * @brief Add a output change handler
247 * @details The handler will be called when the status of a
248 * output object is changed. connection, DPMS, etc.
249 * @param[in] output A output object
250 * @param[in] func A output change handler
251 * @param[in] user_data The user data
252 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
255 tdm_output_add_change_handler(tdm_output *output,
256 tdm_output_change_handler func,
260 * @brief Remove a output change handler
261 * @param[in] output A output object
262 * @param[in] func A output change handler
263 * @param[in] user_data The user data
264 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
267 tdm_output_remove_change_handler(tdm_output *output,
268 tdm_output_change_handler func,
272 * @brief Get the connection type of a output object.
273 * @param[in] output A output object
274 * @param[out] type The connection type.
275 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
278 tdm_output_get_output_type(tdm_output *output, tdm_output_type *type);
281 * @brief Get the layer counts which a output object has.
282 * @param[in] output A output object
283 * @param[out] count The count of layers
284 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
285 * @see tdm_output_get_layer
288 tdm_output_get_layer_count(tdm_output *output, int *count);
291 * @brief Get a layer object which has the given index.
292 * @param[in] output A output object
293 * @param[in] index The index of a layer object
294 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
295 * @return A layer object if success. Otherwise, NULL.
296 * @see tdm_output_get_layer_count
299 tdm_output_get_layer(tdm_output *output, int index, tdm_error *error);
302 * @brief Get the available property array of a output object.
303 * @param[in] output A output object
304 * @param[out] props The available property array
305 * @param[out] count The count of properties
306 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
309 tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props,
313 * @brief Get the available mode array of a output object.
314 * @param[in] output A output object
315 * @param[out] modes The available mode array
316 * @param[out] count The count of modes
317 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
320 tdm_output_get_available_modes(tdm_output *output,
321 const tdm_output_mode **modes, int *count);
324 * @brief Get the available size of a output object.
325 * @details -1 means that a TDM backend module doesn't define the value.
326 * @param[in] output A output object
327 * @param[out] min_w The minimum width which TDM can handle
328 * @param[out] min_h The minimum height which TDM can handle
329 * @param[out] max_w The maximum width which TDM can handle
330 * @param[out] max_h The maximum height which TDM can handle
331 * @param[out] preferred_align The preferred align width which TDM can handle
332 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
335 tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h,
336 int *max_w, int *max_h, int *preferred_align);
339 * @brief Get the physical size of a output object.
340 * @param[in] output A output object
341 * @param[out] mmWidth The milimeter width
342 * @param[out] mmHeight The milimeter height
343 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
346 tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth,
347 unsigned int *mmHeight);
350 * @brief Get the subpixel of a output object.
351 * @param[in] output A output object
352 * @param[out] subpixel The subpixel
353 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
356 tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel);
359 * @brief Get the pipe of a output object.
360 * @param[in] output A output object
361 * @param[out] pipe The pipe
362 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
365 tdm_output_get_pipe(tdm_output *output, unsigned int *pipe);
368 * @brief Set the property which has a given id.
369 * @param[in] output A output object
370 * @param[in] id The property id
371 * @param[in] value The value
372 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
375 tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value);
378 * @brief Get the property which has a given id
379 * @param[in] output A output object
380 * @param[in] id The property id
381 * @param[out] value The value
382 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
385 tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value);
388 * @brief Wait for VBLANK
389 * @details After interval vblanks, a user vblank handler will be called.
390 * @param[in] output A output object
391 * @param[in] interval vblank interval
392 * @param[in] sync 0: asynchronous, 1:synchronous
393 * @param[in] func A user vblank handler
394 * @param[in] user_data The user data
395 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
396 * @see #tdm_output_vblank_handler
399 tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
400 tdm_output_vblank_handler func, void *user_data);
403 * @brief Commit changes for a output object
404 * @details After all change of a output object are applied, a user commit handler
406 * @param[in] output A output object
407 * @param[in] sync 0: asynchronous, 1:synchronous
408 * @param[in] func A user commit handler
409 * @param[in] user_data The user data
410 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
413 tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
417 * @brief Set one of available modes of a output object
418 * @param[in] output A output object
419 * @param[in] mode A output mode
420 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
423 tdm_output_set_mode(tdm_output *output, const tdm_output_mode *mode);
426 * @brief Get the mode of a output object
427 * @param[in] output A output object
428 * @param[out] mode A output mode
429 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
432 tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode);
435 * @brief Set DPMS of a output object
436 * @param[in] output A output object
437 * @param[in] dpms_value DPMS value
438 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
441 tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value);
444 * @brief Get DPMS of a output object
445 * @param[in] output A output object
446 * @param[out] dpms_value DPMS value
447 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
450 tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value);
453 * @brief Create a capture object of a output object
454 * @param[in] output A output object
455 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
456 * @return A capture object
457 * @see tdm_capture_destroy
460 tdm_output_create_capture(tdm_output *output, tdm_error *error);
463 * @brief Get the capabilities of a layer object.
464 * @param[in] layer A layer object
465 * @param[out] capabilities The capabilities of a layer object
466 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
469 tdm_layer_get_capabilities(tdm_layer *layer,
470 tdm_layer_capability *capabilities);
473 * @brief Get the available format array of a layer object.
474 * @param[in] layer A layer object
475 * @param[out] formats The available format array
476 * @param[out] count The count of formats
477 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
480 tdm_layer_get_available_formats(tdm_layer *layer, const tbm_format **formats,
484 * @brief Get the available property array of a layer object.
485 * @param[in] layer A layer object
486 * @param[out] props The available property array
487 * @param[out] count The count of properties
488 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
491 tdm_layer_get_available_properties(tdm_layer *layer, const tdm_prop **props,
495 * @brief Get the zpos of a layer object.
497 * - GRAPHIC layers have fixed zpos. It starts from 0. It's @b non-changeable.
498 * - But the zpos of VIDEO layers will be decided by a backend module side.
499 * - A frontend user only can set the relative zpos to VIDEO layers via #tdm_layer_set_video_pos
500 * - The zpos of video layers is less than GRAPHIC layers or more than GRAPHIC
501 * layers. ie, ..., -2, -1, 4, 5, ... (if 0 <= GRAPHIC layer's zpos < 4).
502 * -------------------------------- graphic layer 3 <-- top most layer
503 * -------------------------------- graphic layer 2
504 * -------------------------------- graphic layer 1
505 * -------------------------------- graphic layer 0
506 * -------------------------------- video layer -1
507 * -------------------------------- video layer -2 <-- lowest layer
508 * @param[in] layer A layer object
509 * @param[out] zpos The zpos
510 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
511 * @see tdm_layer_set_video_pos, tdm_layer_capability
514 tdm_layer_get_zpos(tdm_layer *layer, int *zpos);
517 * @brief Set the property which has a given id.
518 * @param[in] layer A layer object
519 * @param[in] id The property id
520 * @param[in] value The value
521 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
524 tdm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value);
527 * @brief Get the property which has a given id.
528 * @param[in] layer A layer object
529 * @param[in] id The property id
530 * @param[out] value The value
531 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
534 tdm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value);
537 * @brief Set the geometry information to a layer object
538 * @details The geometry information will be applied when the output object
539 * of a layer object is committed. If a layer has TDM_LAYER_CAPABILITY_NO_CROP
540 * capability, a layer will ignore the pos(crop) information of #tdm_info_layer's
542 * @param[in] layer A layer object
543 * @param[in] info The geometry information
544 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
545 * @see tdm_output_commit
548 tdm_layer_set_info(tdm_layer *layer, tdm_info_layer *info);
551 * @brief Get the geometry information to a layer object
552 * @param[in] layer A layer object
553 * @param[out] info The geometry information
554 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
557 tdm_layer_get_info(tdm_layer *layer, tdm_info_layer *info);
560 * @brief Set a TDM buffer to a layer object
561 * @details A TDM buffer will be applied when the output object
562 * of a layer object is committed.
563 * @param[in] layer A layer object
564 * @param[in] buffer A TDM buffer
565 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
566 * @see tdm_output_commit
569 tdm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer);
572 * @brief Unset a TDM buffer from a layer object
573 * @details When this function is called, a current showing buffer will be
574 * disappeared from screen. Then nothing is showing on a layer object.
575 * @param[in] layer A layer object
576 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
579 tdm_layer_unset_buffer(tdm_layer *layer);
582 * @brief Get a displaying TDM buffer from a layer object
583 * @details A displaying TDM buffer is a current showing buffer on screen
584 * that is set to layer object and applied output object of a layer object.
585 * @param[in] layer A layer object
586 * @return A TDM buffer if success. Otherwise, NULL.
589 tdm_layer_get_displaying_buffer(tdm_layer *layer, tdm_error *error);
592 * @brief Set a TBM surface_queue to a layer object
593 * @details A TBM surface_queue will be applied when the output object
594 * of a layer object is committed. and TDM layer will be automatically updated
595 * @param[in] layer A layer object
596 * @param[in] buffer_queue A TBM surface_queue
597 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
598 * @see tdm_output_commit
601 tdm_layer_set_buffer_queue(tdm_layer *layer, tbm_surface_queue_h buffer_queue);
604 * @brief Unset a TBM surface_queue from a layer object
605 * @details When this function is called, a current surface_queue will be
606 * disappeared from screen. Then nothing is showing on a layer object.
607 * @param[in] layer A layer object
608 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
611 tdm_layer_unset_buffer_queue(tdm_layer *layer);
614 * @brief Check wheter a layer object is available for a frontend user to use.
615 * @details A layer object is not usable if a TDM buffer is showing on screen
616 * via this layer object. By calling #tdm_layer_unset_buffer, this layer object
617 * will become usable.
618 * @param[in] layer A layer object
619 * @param[out] usable 1 if usable, 0 if not usable
620 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
623 tdm_layer_is_usable(tdm_layer *layer, unsigned int *usable);
626 * @brief Set the relative zpos to a VIDEO layer object
627 * @details The zpos value is less than the minimum zpos of GRAPHIC layers, or
628 * it is more than the maximum zpos of GRAPHIC layers.
629 * @param[in] layer A VIDEO layer object
630 * @param[in] zpos The zpos
631 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
632 * @see tdm_layer_get_zpos, tdm_layer_capability
635 tdm_layer_set_video_pos(tdm_layer *layer, int zpos);
638 * @brief Create a capture object of a layer object
639 * @param[in] layer A layer object
640 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
641 * @return A capture object
642 * @see tdm_capture_destroy
645 tdm_layer_create_capture(tdm_layer *layer, tdm_error *error);
648 * @brief Get buffer flags from a layer object
649 * @param[in] layer A layer object
650 * @param[out] flags a buffer flags value
651 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
654 tdm_layer_get_buffer_flags(tdm_layer *layer, unsigned int *flags);
657 * @brief Destroy a pp object
658 * @param[in] pp A pp object
659 * @see tdm_display_create_pp
662 tdm_pp_destroy(tdm_pp *pp);
665 * @brief Set the geometry information to a pp object
666 * @param[in] pp A pp object
667 * @param[in] info The geometry information
668 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
672 tdm_pp_set_info(tdm_pp *pp, tdm_info_pp *info);
675 * @brief Attach a source buffer and a destination buffer to a pp object
676 * @param[in] pp A pp object
677 * @param[in] src A source buffer
678 * @param[in] dst A destination buffer
679 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
680 * @see tdm_pp_commit, tdm_buffer_add_release_handler, tdm_buffer_release_handler
683 tdm_pp_attach(tdm_pp *pp, tbm_surface_h src, tbm_surface_h dst);
686 * @brief Commit changes for a pp object
687 * @param[in] pp A pp object
688 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
691 tdm_pp_commit(tdm_pp *pp);
694 * @brief Destroy a capture object
695 * @param[in] capture A capture object
696 * @see tdm_output_create_capture, tdm_layer_create_capture
699 tdm_capture_destroy(tdm_capture *capture);
702 * @brief Set the geometry information to a capture object
703 * @param[in] capture A capture object
704 * @param[in] info The geometry information
705 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
706 * @see tdm_capture_commit
709 tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info);
712 * @brief Attach a TDM buffer to a capture object
713 * @param[in] capture A capture object
714 * @param[in] buffer A TDM buffer
715 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
716 * @see tdm_capture_commit, tdm_buffer_add_release_handler, tdm_buffer_release_handler
719 tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer);
722 * @brief Commit changes for a capture object
723 * @param[in] capture A capture object
724 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
727 tdm_capture_commit(tdm_capture *capture);
730 * @brief The release handler of a TDM buffer
731 * @param[in] buffer A TDM buffer
732 * @param[in] user_data user data
733 * @see tdm_buffer_add_release_handler, tdm_buffer_remove_release_handler
735 typedef void (*tdm_buffer_release_handler)(tbm_surface_h buffer,
739 * @brief Add a release handler to a TDM buffer
741 * TDM has its own buffer release mechanism to let an frontend user know when a TDM buffer
742 * becomes available for a next job. A TDM buffer can be used for TDM to show
743 * it on screen or to capture an output and a layer. After all operations,
744 * TDM will release it immediately when TDM doesn't need it any more.
745 * @param[in] buffer A TDM buffer
746 * @param[in] func A release handler
747 * @param[in] user_data user data
748 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
749 * @see tdm_buffer_remove_release_handler
752 tdm_buffer_add_release_handler(tbm_surface_h buffer,
753 tdm_buffer_release_handler func, void *user_data);
756 * @brief Remove a release handler from a TDM buffer
757 * @param[in] buffer A TDM buffer
758 * @param[in] func A release handler
759 * @param[in] user_data user data
760 * @see tdm_buffer_add_release_handler
763 tdm_buffer_remove_release_handler(tbm_surface_h buffer,
764 tdm_buffer_release_handler func, void *user_data);