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
64 TDM_DISPLAY_CAPABILITY_PP = (1<<0), /**< if hardware supports pp operation */
65 TDM_DISPLAY_CAPABILITY_CAPTURE = (1<<1), /**< if hardware supports capture operation */
66 } tdm_display_capability;
69 * @brief The output change enumeration of #tdm_output_change_handler
72 TDM_OUTPUT_CHANGE_CONNECTION = (1 << 0), /**< connection chagne */
73 TDM_OUTPUT_CHANGE_DPMS = (1 << 1), /**< dpms change */
74 } tdm_output_change_type;
77 * @brief The output change handler
78 * @details This handler will be called when the status of a output object is
81 typedef void (*tdm_output_change_handler)(tdm_output *output,
82 tdm_output_change_type type,
87 * @brief Initialize a display object
88 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
89 * @return A display object
90 * @see tdm_display_deinit
93 tdm_display_init(tdm_error *error);
96 * @brief Deinitialize a display object
97 * @param[in] dpy A display object
98 * @see tdm_display_init
101 tdm_display_deinit(tdm_display *dpy);
104 * @brief Update a display object
106 * When new output is connected, a frontend user need to call this function.
107 * And a frontend user can the new output information with tdm_output_get_xxx functions.
108 * @param[in] dpy A display object
109 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
112 tdm_display_update(tdm_display *dpy);
115 * @brief Get the file descriptor
116 * @details TDM handles the events of fd with #tdm_display_handle_events.
117 * @param[in] dpy A display object
118 * @param[out] fd The file descriptor
119 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
120 * @see tdm_display_handle_events
123 tdm_display_get_fd(tdm_display *dpy, int *fd);
126 * @brief Handle the events
127 * @param[in] dpy A display object
128 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
129 * @see tdm_display_get_fd
132 tdm_display_handle_events(tdm_display *dpy);
135 * @brief Get the capabilities of a display object.
136 * @details A frontend user can get whether TDM supports pp/capture functionality with this function.
137 * @param[in] dpy A display object
138 * @param[out] capabilities The capabilities of a display object
139 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
142 tdm_display_get_capabilities(tdm_display *dpy,
143 tdm_display_capability *capabilities);
146 * @brief Get the pp capabilities of a display object.
147 * @param[in] dpy A display object
148 * @param[out] capabilities The pp capabilities
149 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
152 tdm_display_get_pp_capabilities(tdm_display *dpy,
153 tdm_pp_capability *capabilities);
156 * @brief Get the pp available format array of a display object.
157 * @param[in] dpy A display object
158 * @param[out] formats The pp available format array
159 * @param[out] count The count of formats
160 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
163 tdm_display_get_pp_available_formats(tdm_display *dpy,
164 const tbm_format **formats, int *count);
167 * @brief Get the pp available size of a display object.
168 * @details -1 means that a TDM backend module doesn't define the value.
169 * @param[in] dpy A display object
170 * @param[out] min_w The minimum width which TDM can handle
171 * @param[out] min_h The minimum height which TDM can handle
172 * @param[out] max_w The maximum width which TDM can handle
173 * @param[out] max_h The maximum height which TDM can handle
174 * @param[out] preferred_align The preferred align width which TDM can handle
175 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
178 tdm_display_get_pp_available_size(tdm_display *dpy, int *min_w, int *min_h,
179 int *max_w, int *max_h, int *preferred_align);
182 * @brief Get the capture capabilities of a display object.
183 * @param[in] dpy A display object
184 * @param[out] capabilities The capture capabilities
185 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
188 tdm_display_get_capture_capabilities(tdm_display *dpy,
189 tdm_capture_capability *capabilities);
192 * @brief Get the capture available format array of a display object.
193 * @param[in] dpy A display object
194 * @param[out] formats The capture available format array
195 * @param[out] count The count of formats
196 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
199 tdm_display_get_catpure_available_formats(tdm_display *dpy,
200 const tbm_format **formats, int *count);
203 * @brief Get the output counts which a display object has.
204 * @param[in] dpy A display object
205 * @param[out] count The count of outputs
206 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
207 * @see tdm_display_get_output
210 tdm_display_get_output_count(tdm_display *dpy, int *count);
213 * @brief Get a output object which has the given index.
214 * @param[in] dpy A display object
215 * @param[in] index The index of a output object
216 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
217 * @return A output object if success. Otherwise, NULL.
218 * @see tdm_display_get_output_count
221 tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error);
224 * @brief Create a pp object.
225 * @param[in] dpy A display object
226 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
227 * @return A pp object if success. Otherwise, NULL.
228 * @see tdm_pp_destroy
231 tdm_display_create_pp(tdm_display *dpy, tdm_error *error);
234 * @brief Get the model information of a output object.
235 * @param[in] output A output object
236 * @param[out] maker The output maker.
237 * @param[out] model The output model.
238 * @param[out] name The output name.
239 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
242 tdm_output_get_model_info(tdm_output *output, const char **maker,
243 const char **model, const char **name);
246 * @brief Get the connection status of a output object.
247 * @param[in] output A output object
248 * @param[out] status The connection status.
249 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
252 tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status);
255 * @brief Add a output change handler
256 * @details The handler will be called when the status of a
257 * output object is changed. connection, DPMS, etc.
258 * @param[in] output A output object
259 * @param[in] func A output change handler
260 * @param[in] user_data The user data
261 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
264 tdm_output_add_change_handler(tdm_output *output,
265 tdm_output_change_handler func,
269 * @brief Remove a output change handler
270 * @param[in] output A output object
271 * @param[in] func A output change handler
272 * @param[in] user_data The user data
273 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
276 tdm_output_remove_change_handler(tdm_output *output,
277 tdm_output_change_handler func,
281 * @brief Get the connection type of a output object.
282 * @param[in] output A output object
283 * @param[out] type The connection type.
284 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
287 tdm_output_get_output_type(tdm_output *output, tdm_output_type *type);
290 * @brief Get the layer counts which a output object has.
291 * @param[in] output A output object
292 * @param[out] count The count of layers
293 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
294 * @see tdm_output_get_layer
297 tdm_output_get_layer_count(tdm_output *output, int *count);
300 * @brief Get a layer object which has the given index.
301 * @param[in] output A output object
302 * @param[in] index The index of a layer object
303 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
304 * @return A layer object if success. Otherwise, NULL.
305 * @see tdm_output_get_layer_count
308 tdm_output_get_layer(tdm_output *output, int index, tdm_error *error);
311 * @brief Get the available property array of a output object.
312 * @param[in] output A output object
313 * @param[out] props The available property array
314 * @param[out] count The count of properties
315 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
318 tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props,
322 * @brief Get the available mode array of a output object.
323 * @param[in] output A output object
324 * @param[out] modes The available mode array
325 * @param[out] count The count of modes
326 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
329 tdm_output_get_available_modes(tdm_output *output,
330 const tdm_output_mode **modes, int *count);
333 * @brief Get the available size of a output object.
334 * @details -1 means that a TDM backend module doesn't define the value.
335 * @param[in] output A output object
336 * @param[out] min_w The minimum width which TDM can handle
337 * @param[out] min_h The minimum height which TDM can handle
338 * @param[out] max_w The maximum width which TDM can handle
339 * @param[out] max_h The maximum height which TDM can handle
340 * @param[out] preferred_align The preferred align width which TDM can handle
341 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
344 tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h,
345 int *max_w, int *max_h, int *preferred_align);
348 * @brief Get the physical size of a output object.
349 * @param[in] output A output object
350 * @param[out] mmWidth The milimeter width
351 * @param[out] mmHeight The milimeter height
352 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
355 tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth,
356 unsigned int *mmHeight);
359 * @brief Get the subpixel of a output object.
360 * @param[in] output A output object
361 * @param[out] subpixel The subpixel
362 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
365 tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel);
368 * @brief Get the pipe of a output object.
369 * @param[in] output A output object
370 * @param[out] pipe The pipe
371 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
374 tdm_output_get_pipe(tdm_output *output, unsigned int *pipe);
377 * @brief Set the property which has a given id.
378 * @param[in] output A output object
379 * @param[in] id The property id
380 * @param[in] value The value
381 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
384 tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value);
387 * @brief Get the property which has a given id
388 * @param[in] output A output object
389 * @param[in] id The property id
390 * @param[out] value The value
391 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
394 tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value);
397 * @brief Wait for VBLANK
398 * @details After interval vblanks, a user vblank handler will be called.
399 * @param[in] output A output object
400 * @param[in] interval vblank interval
401 * @param[in] sync 0: asynchronous, 1:synchronous
402 * @param[in] func A user vblank handler
403 * @param[in] user_data The user data
404 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
405 * @see #tdm_output_vblank_handler
408 tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
409 tdm_output_vblank_handler func, void *user_data);
412 * @brief Commit changes for a output object
413 * @details After all change of a output object are applied, a user commit handler
415 * @param[in] output A output object
416 * @param[in] sync 0: asynchronous, 1:synchronous
417 * @param[in] func A user commit handler
418 * @param[in] user_data The user data
419 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
422 tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
426 * @brief Set one of available modes of a output object
427 * @param[in] output A output object
428 * @param[in] mode A output mode
429 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
432 tdm_output_set_mode(tdm_output *output, const tdm_output_mode *mode);
435 * @brief Get the mode of a output object
436 * @param[in] output A output object
437 * @param[out] mode A output mode
438 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
441 tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode);
444 * @brief Set DPMS of a output object
445 * @param[in] output A output object
446 * @param[in] dpms_value DPMS value
447 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
450 tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value);
453 * @brief Get DPMS of a output object
454 * @param[in] output A output object
455 * @param[out] dpms_value DPMS value
456 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
459 tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value);
462 * @brief Create a capture object of a output object
463 * @param[in] output A output object
464 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
465 * @return A capture object
466 * @see tdm_capture_destroy
469 tdm_output_create_capture(tdm_output *output, tdm_error *error);
472 * @brief Get the capabilities of a layer object.
473 * @param[in] layer A layer object
474 * @param[out] capabilities The capabilities of a layer object
475 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
478 tdm_layer_get_capabilities(tdm_layer *layer,
479 tdm_layer_capability *capabilities);
482 * @brief Get the available format array of a layer object.
483 * @param[in] layer A layer object
484 * @param[out] formats The available format array
485 * @param[out] count The count of formats
486 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
489 tdm_layer_get_available_formats(tdm_layer *layer, const tbm_format **formats,
493 * @brief Get the available property array of a layer object.
494 * @param[in] layer A layer object
495 * @param[out] props The available property array
496 * @param[out] count The count of properties
497 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
500 tdm_layer_get_available_properties(tdm_layer *layer, const tdm_prop **props,
504 * @brief Get the zpos of a layer object.
506 * - GRAPHIC layers have fixed zpos. It starts from 0. It's @b non-changeable.
507 * - But the zpos of VIDEO layers will be decided by a backend module side.
508 * - A frontend user only can set the relative zpos to VIDEO layers via #tdm_layer_set_video_pos
509 * - The zpos of video layers is less than GRAPHIC layers or more than GRAPHIC
510 * layers. ie, ..., -2, -1, 4, 5, ... (if 0 <= GRAPHIC layer's zpos < 4).
511 * -------------------------------- graphic layer 3 <-- top most layer
512 * -------------------------------- graphic layer 2
513 * -------------------------------- graphic layer 1
514 * -------------------------------- graphic layer 0
515 * -------------------------------- video layer -1
516 * -------------------------------- video layer -2 <-- lowest layer
517 * @param[in] layer A layer object
518 * @param[out] zpos The zpos
519 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
520 * @see tdm_layer_set_video_pos, tdm_layer_capability
523 tdm_layer_get_zpos(tdm_layer *layer, unsigned int *zpos);
526 * @brief Set the property which has a given id.
527 * @param[in] layer A layer object
528 * @param[in] id The property id
529 * @param[in] value The value
530 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
533 tdm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value);
536 * @brief Get the property which has a given id.
537 * @param[in] layer A layer object
538 * @param[in] id The property id
539 * @param[out] value The value
540 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
543 tdm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value);
546 * @brief Set the geometry information to a layer object
547 * @details The geometry information will be applied when the output object
548 * of a layer object is committed. If a layer has TDM_LAYER_CAPABILITY_NO_CROP
549 * capability, a layer will ignore the pos(crop) information of #tdm_info_layer's
551 * @param[in] layer A layer object
552 * @param[in] info The geometry information
553 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
554 * @see tdm_output_commit
557 tdm_layer_set_info(tdm_layer *layer, tdm_info_layer *info);
560 * @brief Get the geometry information to a layer object
561 * @param[in] layer A layer object
562 * @param[out] info The geometry information
563 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
566 tdm_layer_get_info(tdm_layer *layer, tdm_info_layer *info);
569 * @brief Set a TDM buffer to a layer object
570 * @details A TDM buffer will be applied when the output object
571 * of a layer object is committed.
572 * @param[in] layer A layer object
573 * @param[in] buffer A TDM buffer
574 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
575 * @see tdm_output_commit
578 tdm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer);
581 * @brief Unset a TDM buffer from a layer object
582 * @details When this function is called, a current showing buffer will be
583 * disappeared from screen. Then nothing is showing on a layer object.
584 * @param[in] layer A layer object
585 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
588 tdm_layer_unset_buffer(tdm_layer *layer);
591 * @brief Get a displaying TDM buffer from a layer object
592 * @details A displaying TDM buffer is a current showing buffer on screen
593 * that is set to layer object and applied output object of a layer object.
594 * @param[in] layer A layer object
595 * @return A TDM buffer if success. Otherwise, NULL.
598 tdm_layer_get_displaying_buffer(tdm_layer *layer, tdm_error *error);
601 * @brief Set a TBM surface_queue to a layer object
602 * @details A TBM surface_queue will be applied when the output object
603 * of a layer object is committed. and TDM layer will be automatically updated
604 * @param[in] layer A layer object
605 * @param[in] buffer_queue A TBM surface_queue
606 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
607 * @see tdm_output_commit
610 tdm_layer_set_buffer_queue(tdm_layer *layer, tbm_surface_queue_h buffer_queue);
613 * @brief Unset a TBM surface_queue from a layer object
614 * @details When this function is called, a current surface_queue will be
615 * disappeared from screen. Then nothing is showing on a layer object.
616 * @param[in] layer A layer object
617 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
620 tdm_layer_unset_buffer_queue(tdm_layer *layer);
623 * @brief Check wheter a layer object is available for a frontend user to use.
624 * @details A layer object is not usable if a TDM buffer is showing on screen
625 * via this layer object. By calling #tdm_layer_unset_buffer, this layer object
626 * will become usable.
627 * @param[in] layer A layer object
628 * @param[out] usable 1 if usable, 0 if not usable
629 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
632 tdm_layer_is_usable(tdm_layer *layer, unsigned int *usable);
635 * @brief Set the relative zpos to a VIDEO layer object
636 * @details The zpos value is less than the minimum zpos of GRAPHIC layers, or
637 * it is more than the maximum zpos of GRAPHIC layers.
638 * @param[in] layer A VIDEO layer object
639 * @param[in] zpos The zpos
640 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
641 * @see tdm_layer_get_zpos, tdm_layer_capability
644 tdm_layer_set_video_pos(tdm_layer *layer, int zpos);
647 * @brief Create a capture object of a layer object
648 * @param[in] layer A layer object
649 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
650 * @return A capture object
651 * @see tdm_capture_destroy
654 tdm_layer_create_capture(tdm_layer *layer, tdm_error *error);
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);