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>
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34 **************************************************************************/
36 #ifndef _TDM_BACKEND_H_
37 #define _TDM_BACKEND_H_
39 #include <tbm_surface.h>
41 #include "tdm_types.h"
49 * @brief The backend header file of TDM to implement a TDM backend module.
52 * #include <tdm_backend.h>
57 * @brief The backend module data
59 * The init() function of #tdm_backend_module returns the backend module data.
60 * And it will be passed to display functions of #tdm_func_display.
61 * @see tdm_backend_module, tdm_backend_module
63 typedef void tdm_backend_data;
66 * @brief The output status handler
67 * @details This handler will be called when the status of a output object is
70 typedef void (*tdm_output_status_handler)(tdm_output *output,
71 tdm_output_conn_status status,
75 * @brief The output dpms handler
76 * @details This handler will be called when the dpms of a output object is
79 typedef void (*tdm_output_dpms_handler)(tdm_output *output,
84 * @brief The display capabilities structure of a backend module
85 * @see The display_get_capability() function of #tdm_func_display
87 typedef struct _tdm_caps_display {
88 int max_layer_count; /**< The maximum layer count */
92 * @brief The capabilities structure of a output object
93 * @see The output_get_capability() function of #tdm_func_output
95 typedef struct _tdm_caps_output {
96 char maker[TDM_NAME_LEN]; /**< The output maker */
97 char model[TDM_NAME_LEN]; /**< The output model */
98 char name[TDM_NAME_LEN]; /**< The output name */
100 tdm_output_conn_status status; /**< The connection status */
101 tdm_output_type type; /**< The connection type */
102 unsigned int type_id; /**< The connection type id */
104 unsigned int mode_count; /**< The count of available modes */
106 *modes; /**< The @b newly-allocated array of modes. will be freed in frontend. */
108 unsigned int prop_count; /**< The count of available properties */
109 tdm_prop *props; /**< The @b newly-allocated array of properties. will be freed in frontend. */
111 unsigned int mmWidth; /**< The physical width (milimeter) */
112 unsigned int mmHeight; /**< The physical height (milimeter) */
113 unsigned int subpixel; /**< The subpixel */
115 int min_w; /**< The minimun width */
116 int min_h; /**< The minimun height */
117 int max_w; /**< The maximum width */
118 int max_h; /**< The maximum height */
119 int preferred_align; /**< The prefered align */
121 tdm_output_capability capabilities; /**< The capabilities of output. @since 1.4.1 */
123 int cursor_min_w; /**< The minimun width. @since 1.5.0 */
124 int cursor_min_h; /**< The minimun height. @since 1.5.0 */
125 int cursor_max_w; /**< The maximum width. @since 1.5.0 */
126 int cursor_max_h; /**< The maximum height. @since 1.5.0 */
127 int cursor_preferred_align; /**< The prefered align. @since 1.5.0 */
131 * @brief The capabilities structure of a layer object
132 * @see The layer_get_capability() function of #tdm_func_layer
134 typedef struct _tdm_caps_layer {
135 tdm_layer_capability capabilities; /**< The capabilities of layer */
139 * GRAPHIC layers are non-changeable. The zpos of GRAPHIC layers starts
140 * from 0. If there are 4 GRAPHIC layers, The zpos SHOULD be 0, 1, 2, 3.\n
141 * But the zpos of VIDEO layer is changeable by layer_set_video_pos() function
142 * of #tdm_func_layer. And The zpos of VIDEO layers is less than GRAPHIC
143 * layers or more than GRAPHIC layers.
144 * ie, ..., -2, -1, 4, 5, ... (if 0 <= GRAPHIC layer's zpos < 4).
145 * The zpos of VIDEO layers is @b relative. It doesn't need to start
146 * from -1 or 4. Let's suppose that there are two VIDEO layers.
147 * One has -2 zpos. Another has -4 zpos. Then -2 Video layer is higher
148 * than -4 VIDEO layer.
152 unsigned int format_count; /**< The count of available formats */
154 *formats; /**< The @b newly-allocated array of formats. will be freed in frontend. */
156 unsigned int prop_count; /**< The count of available properties */
157 tdm_prop *props; /**< The @b newly-allocated array of properties. will be freed in frontend. */
161 * @brief The capabilities structure of a pp object
162 * @see The display_get_pp_capability() function of #tdm_func_display
164 typedef struct _tdm_caps_pp {
165 tdm_pp_capability capabilities; /**< The capabilities of pp */
167 unsigned int format_count; /**< The count of available formats */
169 *formats; /**< The @b newly-allocated array. will be freed in frontend. */
171 int min_w; /**< The minimun width */
172 int min_h; /**< The minimun height */
173 int max_w; /**< The maximum width */
174 int max_h; /**< The maximum height */
175 int preferred_align; /**< The prefered align */
177 /**< The attach count which a PP object can handle. @since 1.2.0 */
178 int max_attach_count;
182 * @brief The capabilities structure of a capture object
183 * @see The display_get_capture_capability() function of #tdm_func_display
185 typedef struct _tdm_caps_capture {
186 tdm_capture_capability capabilities; /**< The capabilities of capture */
188 unsigned int format_count; /**< The count of available formats */
190 *formats; /**< The @b newly-allocated array of formats. will be freed in frontend. */
192 int min_w; /**< The minimun width */
193 int min_h; /**< The minimun height */
194 int max_w; /**< The maximum width */
195 int max_h; /**< The maximum height */
196 int preferred_align; /**< The prefered align */
198 /**< The attach count which a capture object can handle. @since 1.2.0 */
199 int max_attach_count;
203 * @brief The display functions for a backend module.
205 typedef struct _tdm_func_display {
207 * @brief Get the display capabilities of a backend module
208 * @param[in] bdata The backend module data
209 * @param[out] caps The display capabilities of a backend module
210 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
212 * A backend module @b SHOULD implement this function. TDM calls this function
213 * not only at the initial time, but also at the update time when new output
215 * If a hardware has the restriction of the number of max usable layer count,
216 * a backend module can set the max count to max_layer_count of #tdm_caps_display
219 tdm_error (*display_get_capability)(tdm_backend_data *bdata, tdm_caps_display *caps);
222 * @brief Get the pp capabilities of a backend module
223 * @param[in] bdata The backend module data
224 * @param[out] caps The pp capabilities of a backend module
225 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
226 * @see tdm_backend_register_func_pp
228 * TDM calls this function not only at the initial time, but also at the update
229 * time when new output is connected.\n
230 * A backend module doesn't need to implement this function if a hardware
231 * doesn't have the memory-to-memory converting device. Otherwise, a backend module
232 * @b SHOULD fill the #tdm_caps_pp data. #tdm_caps_pp contains the hardware
233 * restriction information which a converting device can handle. ie, format, size, etc.
235 tdm_error (*display_get_pp_capability)(tdm_backend_data *bdata, tdm_caps_pp *caps);
238 * @brief Get the capture capabilities of a backend module
239 * @param[in] bdata The backend module data
240 * @param[out] caps The capture capabilities of a backend module
241 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
242 * @see tdm_backend_register_func_capture
244 * TDM calls this function not only at the initial time, but also at the update
245 * time when new output is connected.\n
246 * A backend module doesn't need to implement this function if a hardware
247 * doesn't have the capture device. Otherwise, a backend module @b SHOULD fill the
248 * #tdm_caps_capture data. #tdm_caps_capture contains the hardware restriction
249 * information which a capture device can handle. ie, format, size, etc.
251 tdm_error (*display_get_capture_capability)(tdm_backend_data *bdata, tdm_caps_capture *caps);
254 * @brief Get a output array of a backend module
255 * @param[in] bdata The backend module data
256 * @param[out] count The count of outputs
257 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
258 * @return A output array which is @b newly-allocated
259 * @see tdm_backend_register_func_capture
261 * A backend module @b SHOULD implement this function. TDM calls this function
262 * not only at the initial time, but also at the update time when new output
264 * A backend module @b SHOULD return the @b newly-allocated array which contains
265 * "tdm_output*" data. It will be freed in frontend.
269 * drm_display_get_outputs(tdm_backend_data *bdata, int *count, tdm_error *error)
271 * tdm_drm_data *drm_data = bdata;
272 * tdm_drm_output_data *output_data = NULL;
273 * tdm_output **outputs;
277 * LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link)
282 * if (error) *error = TDM_ERROR_NONE;
286 * // will be freed in frontend
287 * outputs = calloc(*count, sizeof(tdm_drm_output_data*));
291 * if (error) *error = TDM_ERROR_OUT_OF_MEMORY;
296 * LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link)
297 * outputs[i++] = output_data;
299 * if (error) *error = TDM_ERROR_NONE;
305 tdm_output **(*display_get_outputs)(tdm_backend_data *bdata, int *count,
309 * @brief Get the file descriptor of a backend module
310 * @param[in] bdata The backend module data
311 * @param[out] fd The fd of a backend module
312 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
313 * @see display_handle_events() function of #tdm_func_display
315 * A backend module can return epoll's fd which is watching the backend device one more fds.
317 tdm_error (*display_get_fd)(tdm_backend_data *bdata, int *fd);
320 * @brief Handle the events which happens on the fd of a backend module
321 * @param[in] bdata The backend module data
322 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
324 tdm_error (*display_handle_events)(tdm_backend_data *bdata);
327 * @brief Create a pp object of a backend module
328 * @param[in] bdata The backend module data
329 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
330 * @return A pp object
331 * @see pp_destroy() function of #tdm_func_pp
333 * A backend module doesn't need to implement this function if a hardware
334 * doesn't have the memory-to-memory converting device.
336 tdm_pp *(*display_create_pp)(tdm_backend_data *bdata, tdm_error *error);
338 void (*reserved1)(void);
339 void (*reserved2)(void);
340 void (*reserved3)(void);
341 void (*reserved4)(void);
342 void (*reserved5)(void);
343 void (*reserved6)(void);
344 void (*reserved7)(void);
345 void (*reserved8)(void);
349 * @brief The output functions for a backend module.
351 typedef struct _tdm_func_output {
353 * @brief Get the capabilities of a output object
354 * @param[in] output A output object
355 * @param[out] caps The capabilities of a output object
356 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
358 * A backend module @b SHOULD implement this function. TDM calls this function
359 * not only at the initial time, but also at the update time when new output
361 * #tdm_caps_output contains connection status, modes, avaiable properties,
362 * size restriction information, etc.
364 tdm_error (*output_get_capability)(tdm_output *output, tdm_caps_output *caps);
367 * @brief Get a layer array of a output object
368 * @param[in] output A output object
369 * @param[out] count The count of layers
370 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
371 * @return A layer array which is @b newly-allocated
373 * A backend module @b SHOULD implement this function. TDM calls this function
374 * not only at the initial time, but also at the update time when new output
376 * A backend module @b SHOULD return the @b newly-allocated array which contains
377 * "tdm_layer*" data. It will be freed in frontend.
379 tdm_layer **(*output_get_layers)(tdm_output *output, int *count,
383 * @brief Set the property which has a given id
384 * @param[in] output A output object
385 * @param[in] id The property id
386 * @param[in] value The value
387 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
389 tdm_error (*output_set_property)(tdm_output *output, unsigned int id,
393 * @brief Get the property which has a given id
394 * @param[in] output A output object
395 * @param[in] id The property id
396 * @param[out] value The value
397 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
399 tdm_error (*output_get_property)(tdm_output *output, unsigned int id,
403 * @brief Wait for VBLANK
404 * @param[in] output A output object
405 * @param[in] interval vblank interval
406 * @param[in] sync 0: asynchronous, 1:synchronous
407 * @param[in] user_data The user data
408 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
409 * @see output_set_vblank_handler, tdm_output_vblank_handler
411 * If this function returns TDM_ERROR_NONE, a backend module @b SHOULD call
412 * a user vblank handler with the user data of this function after interval
415 tdm_error (*output_wait_vblank)(tdm_output *output, int interval, int sync,
419 * @brief Set a user vblank handler
420 * @param[in] output A output object
421 * @param[in] func A user vblank handler
422 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
424 tdm_error (*output_set_vblank_handler)(tdm_output *output,
425 tdm_output_vblank_handler func);
428 * @brief Commit changes for a output object
429 * @param[in] output A output object
430 * @param[in] sync 0: asynchronous, 1:synchronous
431 * @param[in] user_data The user data
432 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
433 * @see output_set_commit_handler, tdm_output_commit_handler
435 * When this function is called, a backend module @b SHOULD apply the all
436 * changes of the given output object to screen as well as the layer changes
438 * If this function returns TDM_ERROR_NONE, a backend module @b SHOULD call
439 * a user commit handler with the user data of this function after all
440 * changes of the given output object are applied.
442 tdm_error (*output_commit)(tdm_output *output, int sync, void *user_data);
445 * @brief Set a user commit handler
446 * @param[in] output A output object
447 * @param[in] func A user commit handler
448 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
450 tdm_error (*output_set_commit_handler)(tdm_output *output,
451 tdm_output_commit_handler func);
454 * @brief Set DPMS of a output object synchronously
455 * @param[in] output A output object
456 * @param[in] dpms_value DPMS value
457 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
459 tdm_error (*output_set_dpms)(tdm_output *output, tdm_output_dpms dpms_value);
462 * @brief Get DPMS of a output object
463 * @param[in] output A output object
464 * @param[out] dpms_value DPMS value
465 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
467 tdm_error (*output_get_dpms)(tdm_output *output, tdm_output_dpms *dpms_value);
470 * @brief Set one of available modes of a output object
471 * @param[in] output A output object
472 * @param[in] mode A output mode
473 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
475 tdm_error (*output_set_mode)(tdm_output *output, const tdm_output_mode *mode);
478 * @brief Get the mode of a output object
480 * @param[in] output A output object
481 * @param[out] mode A output mode
482 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
484 tdm_error (*output_get_mode)(tdm_output *output, const tdm_output_mode **mode);
487 * @brief Create a capture object of a output object
488 * @param[in] output A output object
489 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
490 * @return A capture object
491 * @see capture_destroy() function of #tdm_func_capture
493 * A backend module doesn't need to implement this function if a hardware
494 * doesn't have the capture device.
496 tdm_capture *(*output_create_capture)(tdm_output *output, tdm_error *error);
499 * @brief Set a output connection status handler
500 * @details A backend module need to call the output status handler when the
501 * output connection status has been changed to let the TDM frontend know
503 * @param[in] output A output object
504 * @param[in] func A output status handler
505 * @param[in] user_data The user data
506 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
509 tdm_error (*output_set_status_handler)(tdm_output *output,
510 tdm_output_status_handler func,
514 * @brief Set a output dpms handler
515 * @details This function can be NULL if an output doesn't support asynchronous
516 * DPMS control. Otherwise, a backend module needs to call the output dpms handler
517 * to let the TDM frontend know the output DPMS change indeed.
518 * @param[in] output A output object
519 * @param[in] func A output dpms handler
520 * @param[in] user_data The user data
521 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
522 * @see #output_set_dpms_async, #TDM_OUTPUT_CAPABILITY_ASYNC_DPMS
525 tdm_error (*output_set_dpms_handler)(tdm_output *output,
526 tdm_output_dpms_handler func,
530 * @brief Set DPMS of a output object asynchronously
531 * @param[in] output A output object
532 * @details This function can be NULL if an output doesn't support asynchronous
533 * DPMS control. Otherwise, an output should have #TDM_OUTPUT_CAPABILITY_ASYNC_DPMS
534 * flags which #output_get_capability returns. And if a output dpms handler is added with
535 * #output_set_dpms_handler, a backend module needs to call the output dpms handler
536 * to let the TDM frontend know the output DPMS change indeed.
537 * @param[in] dpms_value DPMS value
538 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
539 * @see #output_set_dpms_handler, #TDM_OUTPUT_CAPABILITY_ASYNC_DPMS
542 tdm_error (*output_set_dpms_async)(tdm_output *output, tdm_output_dpms dpms_value);
544 void (*reserved3)(void);
545 void (*reserved4)(void);
546 void (*reserved5)(void);
547 void (*reserved6)(void);
548 void (*reserved7)(void);
549 void (*reserved8)(void);
553 * @brief The layer functions for a backend module.
555 typedef struct _tdm_func_layer {
557 * @brief Get the capabilities of a layer object
558 * @param[in] layer A layer object
559 * @param[out] caps The capabilities of a layer object
560 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
562 * A backend module @b SHOULD implement this function. TDM calls this function
563 * not only at the initial time, but also at the update time when new output
565 * #tdm_caps_layer contains avaiable formats/properties, zpos information, etc.
567 tdm_error (*layer_get_capability)(tdm_layer *layer, tdm_caps_layer *caps);
570 * @brief Set the property which has a given id.
571 * @param[in] layer A layer object
572 * @param[in] id The property id
573 * @param[in] value The value
574 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
576 tdm_error (*layer_set_property)(tdm_layer *layer, unsigned int id,
580 * @brief Get the property which has a given id.
581 * @param[in] layer A layer object
582 * @param[in] id The property id
583 * @param[out] value The value
584 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
586 tdm_error (*layer_get_property)(tdm_layer *layer, unsigned int id,
590 * @brief Set the geometry information to a layer object
591 * @param[in] layer A layer object
592 * @param[in] info The geometry information
593 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
594 * @see output_commit() function of #tdm_func_output
596 * A backend module would apply the geometry information when the output object
597 * of a layer object is committed.
599 tdm_error (*layer_set_info)(tdm_layer *layer, tdm_info_layer *info);
602 * @brief Get the geometry information to a layer object
603 * @param[in] layer A layer object
604 * @param[out] info The geometry information
605 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
607 tdm_error (*layer_get_info)(tdm_layer *layer, tdm_info_layer *info);
610 * @brief Set a TDM buffer to a layer object
611 * @param[in] layer A layer object
612 * @param[in] buffer A TDM buffer
613 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
614 * @see output_commit() function of #tdm_func_output
616 * A backend module would show a TDM buffer on screen when the output object
617 * of a layer object is committed.
619 tdm_error (*layer_set_buffer)(tdm_layer *layer, tbm_surface_h buffer);
622 * @brief Unset a TDM buffer from a layer object
623 * @param[in] layer A layer object
624 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
626 * A backend module @b SHOULD remove the current showing buffer from screen.
628 tdm_error (*layer_unset_buffer)(tdm_layer *layer);
631 * @brief Set the zpos for a VIDEO layer object
632 * @param[in] layer A layer object
633 * @param[in] zpos z-order
634 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
635 * @see tdm_caps_layer, tdm_layer_capability
637 * A backend module doesn't need to implement this function if a backend
638 * module doesn't have VIDEO layers.\n
639 * This function is for VIDEO layers.
640 * GRAPHIC layers are non-changeable. The zpos of GRAPHIC layers starts
641 * from 0. If there are 4 GRAPHIC layers, The zpos SHOULD be 0, 1, 2, 3.\n
642 * But the zpos of VIDEO layer is changeable. And The zpos of VIDEO layers
643 * is less than GRAPHIC layers or more than GRAPHIC layers.
644 * ie, ..., -2, -1, 4, 5, ... (if 0 <= GRAPHIC layer's zpos < 4).
645 * The zpos of VIDEO layers is @b relative. It doesn't need to start
646 * from -1 or 4. Let's suppose that there are two VIDEO layers.
647 * One has -2 zpos. Another has -4 zpos. Then -2 Video layer is higher
648 * than -4 VIDEO layer.
650 tdm_error (*layer_set_video_pos)(tdm_layer *layer, int zpos);
653 * @brief Create a capture object of a layer object
654 * @param[in] output A output object
655 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
656 * @return A capture object
657 * @see capture_destroy() function of #tdm_func_capture
659 * A backend module doesn't need to implement this function if a hardware
660 * doesn't have the capture device.
662 tdm_capture *(*layer_create_capture)(tdm_layer *layer, tdm_error *error);
665 * @brief Get buffer flags which the layer can support.
666 * @param[in] layer A layer object
667 * @param[out] flags The buffer flags which should be the tbm_bo flags
668 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
670 tdm_error (*layer_get_buffer_flags)(tdm_layer *layer, unsigned int *flags);
672 void (*reserved1)(void);
673 void (*reserved2)(void);
674 void (*reserved3)(void);
675 void (*reserved4)(void);
676 void (*reserved5)(void);
677 void (*reserved6)(void);
678 void (*reserved7)(void);
682 * @brief The pp functions for a backend module.
684 typedef struct _tdm_func_pp {
686 * @brief Destroy a pp object
687 * @param[in] pp A pp object
688 * @see display_create_pp() function of #tdm_func_display
690 void (*pp_destroy)(tdm_pp *pp);
693 * @brief Set the geometry information to a pp object
694 * @param[in] pp A pp object
695 * @param[in] info The geometry information
696 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
697 * @see pp_commit() function of #tdm_func_pp
699 * A backend module would apply the geometry information when committed.
701 tdm_error (*pp_set_info)(tdm_pp *pp, tdm_info_pp *info);
704 * @brief Attach a source buffer and a destination buffer to a pp object
705 * @param[in] pp A pp object
706 * @param[in] src A source buffer
707 * @param[in] dst A destination buffer
708 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
709 * @see pp_set_info() function of #tdm_func_pp
710 * @see pp_commit() function of #tdm_func_pp
711 * @see pp_set_done_handler, tdm_pp_done_handler
713 * A backend module converts the image of a source buffer to a destination
714 * buffer when committed. The size/crop/transform information is set via
715 * #pp_set_info() of #tdm_func_pp. When done, a backend module @b SHOULD
716 * return the source/destination buffer via tdm_pp_done_handler.
718 tdm_error (*pp_attach)(tdm_pp *pp, tbm_surface_h src, tbm_surface_h dst);
721 * @brief Commit changes for a pp object
722 * @param[in] pp A pp object
723 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
725 tdm_error (*pp_commit)(tdm_pp *pp);
728 * @brief Set a user done handler to a pp object
729 * @param[in] pp A pp object
730 * @param[in] func A user done handler
731 * @param[in] user_data user data
732 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
734 * A backend module @b SHOULD call #tdm_pp_done_handler when converintg a image is done.
736 tdm_error (*pp_set_done_handler)(tdm_pp *pp, tdm_pp_done_handler func,
739 void (*reserved1)(void);
740 void (*reserved2)(void);
741 void (*reserved3)(void);
742 void (*reserved4)(void);
743 void (*reserved5)(void);
744 void (*reserved6)(void);
745 void (*reserved7)(void);
746 void (*reserved8)(void);
750 * @brief The capture functions for a backend module.
752 typedef struct _tdm_func_capture {
754 * @brief Destroy a capture object
755 * @param[in] capture A capture object
756 * @see output_create_capture() function of #tdm_func_output
757 * @see layer_create_capture() function of #tdm_func_layer
759 void (*capture_destroy)(tdm_capture *capture);
762 * @brief Set the geometry information to a capture object
763 * @param[in] capture A capture object
764 * @param[in] info The geometry information
765 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
766 * @see capture_commit() function of #tdm_func_capture
768 * A backend module would apply the geometry information when committed.
770 tdm_error (*capture_set_info)(tdm_capture *capture, tdm_info_capture *info);
773 * @brief Attach a TDM buffer to a capture object
774 * @details When capture_commit() function is called, a backend module starts
775 * to dump a output or a layer to a TDM buffer.
776 * @param[in] capture A capture object
777 * @param[in] buffer A TDM buffer
778 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
779 * @see capture_set_info() function of #tdm_func_capture
780 * @see capture_commit() function of #tdm_func_capture
781 * @see capture_set_done_handler, tdm_capture_done_handler
783 * A backend module starts to dump a output or a layer to to a TDM buffer when
784 * committed. The size/crop/transform information is set via #capture_set_info()
785 * of #tdm_func_capture. When done, a backend module @b SHOULD return the TDM
786 * buffer via tdm_capture_done_handler.
788 tdm_error (*capture_attach)(tdm_capture *capture, tbm_surface_h buffer);
791 * @brief Commit changes for a capture object
792 * @param[in] capture A capture object
793 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
795 tdm_error (*capture_commit)(tdm_capture *capture);
798 * @brief Set a user done handler to a capture object
799 * @param[in] capture A capture object
800 * @param[in] func A user done handler
801 * @param[in] user_data user data
802 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
804 * A backend module @b SHOULD call #tdm_capture_done_handler when capture operation is done.
806 tdm_error (*capture_set_done_handler)(tdm_capture *capture,
807 tdm_capture_done_handler func, void *user_data);
809 void (*reserved1)(void);
810 void (*reserved2)(void);
811 void (*reserved3)(void);
812 void (*reserved4)(void);
813 void (*reserved5)(void);
814 void (*reserved6)(void);
815 void (*reserved7)(void);
816 void (*reserved8)(void);
820 * @brief The tdm event source
822 typedef void tdm_event_loop_source;
825 * @brief The fd source handler
827 typedef tdm_error (*tdm_event_loop_fd_handler)(int fd, tdm_event_loop_mask mask, void *user_data);
830 * @brief The timer source handler
832 typedef tdm_error (*tdm_event_loop_timer_handler)(void *user_data);
834 #define TDM_BACKEND_MINOR_VERSION_MASK 0x0000FFFF
835 #define TDM_BACKEND_MAJOR_VERSION_MASK 0xFFFF0000
836 #define TDM_BACKEND_GET_ABI_MINOR(v) ((v) & TDM_BACKEND_MINOR_VERSION_MASK)
837 #define TDM_BACKEND_GET_ABI_MAJOR(v) (((v) & TDM_BACKEND_MAJOR_VERSION_MASK) >> 16)
841 * The ABI version of TDM backend module. It has a major and minor revision.
842 * Modules using lower minor revisions will work with TDM frontend of a higher
843 * minor revision. There is no compatibility between different major revisions.
844 * The minor revision mask is 0x0000FFFF and the major revision mask is 0xFFFF0000.
847 * tdm_backend_module tdm_backend_module_data = {
850 * TDM_BACKEND_SET_ABI_VERSION(1,1),
856 #define TDM_BACKEND_SET_ABI_VERSION(major, minor) \
857 (((major) << 16) & TDM_BACKEND_MAJOR_VERSION_MASK) | \
858 ((minor) & TDM_BACKEND_MINOR_VERSION_MASK)
862 * This MACRO is deprecated since 1.2.0. Use TDM_BACKEND_SET_ABI_VERSION instead of this.
864 * Use #TDM_BACKEND_SET_ABI_VERSION macro instead of this macro.
866 #define TDM_BACKEND_ABI_VERSION TDM_BACKEND_SET_ABI_VERSION(1, 1)
869 * @brief The backend module information of the entry point to initialize a TDM
872 * A backend module @b SHOULD define the global data symbol of which name is
873 * @b "tdm_backend_module_data". TDM will read this symbol, @b "tdm_backend_module_data",
874 * at the initial time and call init() function of #tdm_backend_module.
876 typedef struct _tdm_backend_module {
877 const char *name; /**< The module name of a backend module */
878 const char *vendor; /**< The vendor name of a backend module */
879 unsigned long abi_version; /**< The ABI version of a backend module */
882 * @brief The init function of a backend module
883 * @param[in] dpy A display object
884 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
885 * @return The backend module data
886 * @see tdm_backend_data
888 tdm_backend_data *(*init)(tdm_display *dpy, tdm_error *error);
891 * @brief The deinit function of a backend module
892 * @param[in] bdata The backend module data
894 void (*deinit)(tdm_backend_data *bdata);
895 } tdm_backend_module;
898 * @brief Register the backend display functions to a display
899 * @param[in] dpy A display object
900 * @param[in] func_display display functions
901 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
902 * @see tdm_backend_register_func_output, tdm_backend_register_func_layer
904 * A backend module @b SHOULD set the backend display functions at least.
907 tdm_backend_register_func_display(tdm_display *dpy,
908 tdm_func_display *func_display);
911 * @brief Register the backend output functions to a display
912 * @param[in] dpy A display object
913 * @param[in] func_output output functions
914 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
915 * @see tdm_backend_register_func_display, tdm_backend_register_func_layer
917 * A backend module @b SHOULD set the backend output functions at least.
920 tdm_backend_register_func_output(tdm_display *dpy,
921 tdm_func_output *func_output);
924 * @brief Register the backend layer functions to a display
925 * @param[in] dpy A display object
926 * @param[in] func_layer layer functions
927 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
928 * @see tdm_backend_register_func_display, tdm_backend_register_func_output
930 * A backend module @b SHOULD set the backend layer functions at least.
933 tdm_backend_register_func_layer(tdm_display *dpy, tdm_func_layer *func_layer);
936 * @brief Register the backend pp functions to a display
937 * @param[in] dpy A display object
938 * @param[in] func_pp pp functions
939 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
940 * @see tdm_backend_register_func_display, tdm_backend_register_func_capture
942 * A backend module doesn'tcan skip to register the backend pp functions
943 * if a hardware doesn't have the memory-to-memory converting device.
946 tdm_backend_register_func_pp(tdm_display *dpy, tdm_func_pp *func_pp);
949 * @brief Register the backend capture functions to a display
950 * @param[in] dpy A display object
951 * @param[in] func_capture capture functions
952 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
953 * @see tdm_backend_register_func_display, tdm_backend_register_func_pp
955 * A backend module can skip to register the backend capture functions
956 * if a hardware doesn't have the capture device.
959 tdm_backend_register_func_capture(tdm_display *dpy,
960 tdm_func_capture *func_capture);
963 * @brief Increase the ref_count of a TDM buffer
965 * TDM has its own buffer release mechanism to let an frontend user know when a TDM buffer
966 * becomes available for a next job. A TDM buffer can be used for TDM to show
967 * it on screen or to capture an output and a layer. After all operations,
968 * TDM will release it immediately when TDM doesn't need it any more.
969 * @param[in] buffer A TDM buffer
970 * @return A buffer itself. Otherwise, NULL.
971 * @see tdm_buffer_unref_backend
973 * - This function @b SHOULD be paired with #tdm_buffer_unref_backend. \n
974 * - For example, this function @b SHOULD be called in case that a backend module uses the TDM
975 * buffer of a layer for capturing a output or a layer to avoid tearing issue.
978 tdm_buffer_ref_backend(tbm_surface_h buffer);
981 * @brief Decrease the ref_count of a TDM buffer
982 * @param[in] buffer A TDM buffer
983 * @see tdm_buffer_ref_backend
986 tdm_buffer_unref_backend(tbm_surface_h buffer);
989 * @brief The destroy handler of a TDM buffer
990 * @param[in] buffer A TDM buffer
991 * @param[in] user_data user data
992 * @see tdm_buffer_add_destroy_handler, tdm_buffer_remove_destroy_handler
994 typedef void (*tdm_buffer_destroy_handler)(tbm_surface_h buffer,
998 * @brief Add a destroy handler to a TDM buffer
999 * @param[in] buffer A TDM buffer
1000 * @param[in] func A destroy handler
1001 * @param[in] user_data user data
1002 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
1003 * @see tdm_buffer_remove_destroy_handler
1005 * A backend module can add a TDM buffer destroy handler to a TDM buffer which
1006 * is a #tbm_surface_h object. When the TDM buffer is destroyed, this handler will
1010 tdm_buffer_add_destroy_handler(tbm_surface_h buffer,
1011 tdm_buffer_destroy_handler func, void *user_data);
1014 * @brief Remove a destroy handler from a TDM buffer
1015 * @param[in] buffer A TDM buffer
1016 * @param[in] func A destroy handler
1017 * @param[in] user_data user data
1018 * @see tdm_buffer_add_destroy_handler
1021 tdm_buffer_remove_destroy_handler(tbm_surface_h buffer,
1022 tdm_buffer_destroy_handler func, void *user_data);
1025 * @brief Add a FD handler for activity on the given file descriptor
1026 * @param[in] dpy A display object
1027 * @param[in] fd A file descriptor
1028 * @param[in] mask to monitor FD
1029 * @param[in] func A FD handler function
1030 * @param[in] user_data user data
1031 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
1032 * @return A FD event source
1033 * @see #tdm_event_loop_source_fd_update, #tdm_event_loop_source_remove
1035 tdm_event_loop_source*
1036 tdm_event_loop_add_fd_handler(tdm_display *dpy, int fd, tdm_event_loop_mask mask,
1037 tdm_event_loop_fd_handler func, void *user_data,
1041 * @brief Update the mask of the given FD event source
1042 * @param[in] source The given FD event source
1043 * @param[in] mask to monitor FD
1044 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
1047 tdm_event_loop_source_fd_update(tdm_event_loop_source *source, tdm_event_loop_mask mask);
1050 * @brief Add a timer handler
1051 * @param[in] dpy A display object
1052 * @param[in] func A timer handler function
1053 * @param[in] user_data user data
1054 * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
1055 * @return A timer event source
1056 * @see #tdm_event_loop_source_timer_update, #tdm_event_loop_source_remove
1058 tdm_event_loop_source*
1059 tdm_event_loop_add_timer_handler(tdm_display *dpy, tdm_event_loop_timer_handler func,
1060 void *user_data, tdm_error *error);
1063 * @brief Update the millisecond delay time of the given timer event source.
1064 * @param[in] source The given timer event source
1065 * @param[in] ms_delay The millisecond delay time. zero "0" disarms the timer.
1066 * @return #TDM_ERROR_NONE if success. Otherwise, error value.
1069 tdm_event_loop_source_timer_update(tdm_event_loop_source *source, unsigned int ms_delay);
1072 * @brief Remove the given event source
1073 * @param[in] source The given event source
1074 * @see #tdm_event_loop_add_fd_handler, #tdm_event_loop_add_timer_handler
1077 tdm_event_loop_source_remove(tdm_event_loop_source *source);
1083 #endif /* _TDM_BACKEND_H_ */