/**************************************************************************
-
-libtdm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: Eunchul Kim <chulspro.kim@samsung.com>,
- JinYoung Jeon <jy0.jeon@samsung.com>,
- Taeheon Kim <th908.kim@samsung.com>,
- YoungJun Cho <yj44.cho@samsung.com>,
- SooChan Lim <sc1.lim@samsung.com>,
- Boram Park <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
+ *
+ * libtdm
+ *
+ * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
+ *
+ * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
+ * JinYoung Jeon <jy0.jeon@samsung.com>,
+ * Taeheon Kim <th908.kim@samsung.com>,
+ * YoungJun Cho <yj44.cho@samsung.com>,
+ * SooChan Lim <sc1.lim@samsung.com>,
+ * Boram Park <sc1.lim@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
**************************************************************************/
#ifndef _TDM_H_
#include <stdint.h>
#include <tbm_surface.h>
+#include <tbm_surface_queue.h>
#include <tbm_surface_internal.h>
#include "tdm_types.h"
extern "C" {
#endif
-///////////////////////////////////////////////////////////////////////////////
-
-typedef enum
-{
- TDM_DISPLAY_CAPABILITY_PP = (1<<0),
- TDM_DISPLAY_CAPABILITY_CAPTURE = (1<<1),
+/**
+ * @file tdm.h
+ * @brief The header file for a frontend user.
+ * @par Example
+ * @code
+ * #include <tdm.h> //for a frontend user
+ * @endcode
+ */
+
+/**
+ * @brief The display capability enumeration
+ */
+typedef enum {
+ TDM_DISPLAY_CAPABILITY_PP = (1 << 0), /**< if hardware supports pp operation */
+ TDM_DISPLAY_CAPABILITY_CAPTURE = (1 << 1), /**< if hardware supports capture operation */
} tdm_display_capability;
-/* not neccessary for user to know what backend is */
-tdm_display* tdm_display_init(tdm_error *error);
-void tdm_display_deinit(tdm_display *dpy);
-tdm_error tdm_display_update(tdm_display *dpy);
-
-///////////////////////////////////////////////////////////////////////////////
-
-tdm_error tdm_display_get_fd(tdm_display *dpy, int *fd);
-tdm_error tdm_display_handle_events(tdm_display *dpy);
-
-tdm_error tdm_display_get_capabilities(tdm_display *dpy, tdm_display_capability *capabilities);
-tdm_error tdm_display_get_pp_capabilities(tdm_display *dpy, tdm_pp_capability *capabilities);
-tdm_error tdm_display_get_pp_available_formats(tdm_display *dpy, const tbm_format **formats, int *count);
-tdm_error tdm_display_get_pp_available_size(tdm_display *dpy, int *min_w, int *min_h, int *max_w, int *max_h, int *preferred_align);
-tdm_error tdm_display_get_capture_capabilities(tdm_display *dpy, tdm_capture_capability *capabilities);
-tdm_error tdm_display_get_catpure_available_formats(tdm_display *dpy, const tbm_format **formats, int *count);
-tdm_error tdm_display_get_output_count(tdm_display *dpy, int *count);
-const tdm_output* tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error);
-
-tdm_pp* tdm_display_create_pp(tdm_display *dpy, tdm_error *error);
-
-///////////////////////////////////////////////////////////////////////////////
-
-tdm_error tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status);
-tdm_error tdm_output_get_output_type(tdm_output *output, tdm_output_type *type);
-tdm_error tdm_output_get_layer_count(tdm_output *output, int *count);
-const tdm_layer* tdm_output_get_layer(tdm_output *output, int index, tdm_error *error);
-tdm_error tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props, int *count);
-tdm_error tdm_output_get_available_modes(tdm_output *output, const tdm_output_mode **modes, int *count);
-tdm_error tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h, int *max_w, int *max_h, int *preferred_align);
-tdm_error tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth, unsigned int *mmHeight);
-tdm_error tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel);
-tdm_error tdm_output_get_pipe(tdm_output *output, unsigned int *pipe);
-
-tdm_error tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value);
-tdm_error tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value);
-tdm_error tdm_output_wait_vblank(tdm_output *output, int interval, int sync, tdm_output_vblank_handler func, void *user_data);
-tdm_error tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func, void *user_data);
-
-tdm_error tdm_output_set_mode(tdm_output *output, tdm_output_mode *mode);
-tdm_error tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode);
-
-tdm_error tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value);
-tdm_error tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value);
-
-tdm_capture *tdm_output_create_capture(tdm_output *output, tdm_error *error);
-
-///////////////////////////////////////////////////////////////////////////////
-
-tdm_error tdm_layer_get_capabilities(tdm_layer *layer, tdm_layer_capability *capabilities);
-tdm_error tdm_layer_get_available_formats(tdm_layer *layer, const tbm_format **formats, int *count);
-tdm_error tdm_layer_get_available_properties(tdm_layer *layer, const tdm_prop **props, int *count);
-tdm_error tdm_layer_get_zpos(tdm_layer *layer, unsigned int *zpos); /* zpos of layer is fixed */
-
-tdm_error tdm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value);
-tdm_error tdm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value);
-tdm_error tdm_layer_set_info(tdm_layer *layer, tdm_info_layer *info);
-tdm_error tdm_layer_get_info(tdm_layer *layer, tdm_info_layer *info);
-tdm_error tdm_layer_set_buffer(tdm_layer *layer, tdm_buffer *buffer); // layer has only one buffer
-tdm_error tdm_layer_unset_buffer(tdm_layer *layer);
-tdm_error tdm_layer_is_usable(tdm_layer *layer, unsigned int *usable);
-
-tdm_capture *tdm_layer_create_capture(tdm_layer *layer, tdm_error *error);
-
-///////////////////////////////////////////////////////////////////////////////
-
-void tdm_pp_destroy(tdm_pp *pp);
-tdm_error tdm_pp_set_info(tdm_pp *pp, tdm_info_pp *info);
-tdm_error tdm_pp_attach(tdm_pp *pp, tdm_buffer *src, tdm_buffer *dst);
-tdm_error tdm_pp_commit(tdm_pp *pp);
-
-///////////////////////////////////////////////////////////////////////////////
-
-void tdm_capture_destroy(tdm_capture *capture);
-tdm_error tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info);
-tdm_error tdm_capture_attach(tdm_capture *capture, tdm_buffer *buffer);
-tdm_error tdm_capture_commit(tdm_capture *capture);
-
-///////////////////////////////////////////////////////////////////////////////
-
-typedef void (*tdm_buffer_release_handler)(tdm_buffer *buffer, void *user_data);
-
-/* not pthread safe */
-tdm_buffer *tdm_buffer_create(tbm_surface_h buffer, tdm_error *error);
-tdm_buffer *tdm_buffer_ref(tdm_buffer *buffer, tdm_error *error);
-void tdm_buffer_unref(tdm_buffer *buffer);
-tdm_error tdm_buffer_add_release_handler(tdm_buffer *buffer, tdm_buffer_release_handler func, void *user_data);
-void tdm_buffer_remove_release_handler(tdm_buffer *buffer, tdm_buffer_release_handler func, void *user_data);
+/**
+ * @brief The output change handler
+ * @details This handler will be called when the status of a output object is
+ * changed in runtime.
+ */
+typedef void (*tdm_output_change_handler)(tdm_output *output,
+ tdm_output_change_type type,
+ tdm_value value,
+ void *user_data);
+
+/**
+ * @brief Initialize a display object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A display object
+ * @see tdm_display_deinit
+ */
+tdm_display *
+tdm_display_init(tdm_error *error);
+
+/**
+ * @brief Deinitialize a display object
+ * @param[in] dpy A display object
+ * @see tdm_display_init
+ */
+void
+tdm_display_deinit(tdm_display *dpy);
+
+/**
+ * @brief Update a display object
+ * @details
+ * When new output is connected, a frontend user need to call this function.
+ * And a frontend user can the new output information with tdm_output_get_xxx functions.
+ * @param[in] dpy A display object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_update(tdm_display *dpy);
+
+/**
+ * @brief Get the file descriptor
+ * @details TDM handles the events of fd with #tdm_display_handle_events.
+ * @param[in] dpy A display object
+ * @param[out] fd The file descriptor
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_display_handle_events
+ */
+tdm_error
+tdm_display_get_fd(tdm_display *dpy, int *fd);
+
+/**
+ * @brief Handle the events
+ * @param[in] dpy A display object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_display_get_fd
+ */
+tdm_error
+tdm_display_handle_events(tdm_display *dpy);
+
+/**
+ * @brief Get the capabilities of a display object.
+ * @details A frontend user can get whether TDM supports pp/capture functionality with this function.
+ * @param[in] dpy A display object
+ * @param[out] capabilities The capabilities of a display object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_capabilities(tdm_display *dpy,
+ tdm_display_capability *capabilities);
+
+/**
+ * @brief Get the pp capabilities of a display object.
+ * @param[in] dpy A display object
+ * @param[out] capabilities The pp capabilities
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_pp_capabilities(tdm_display *dpy,
+ tdm_pp_capability *capabilities);
+
+/**
+ * @brief Get the pp available format array of a display object.
+ * @param[in] dpy A display object
+ * @param[out] formats The pp available format array
+ * @param[out] count The count of formats
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_pp_available_formats(tdm_display *dpy,
+ const tbm_format **formats, int *count);
+
+/**
+ * @brief Get the pp available size of a display object.
+ * @details -1 means that a TDM backend module doesn't define the value.
+ * @param[in] dpy A display object
+ * @param[out] min_w The minimum width which TDM can handle
+ * @param[out] min_h The minimum height which TDM can handle
+ * @param[out] max_w The maximum width which TDM can handle
+ * @param[out] max_h The maximum height which TDM can handle
+ * @param[out] preferred_align The preferred align width which TDM can handle
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_pp_available_size(tdm_display *dpy, int *min_w, int *min_h,
+ int *max_w, int *max_h, int *preferred_align);
+
+/**
+ * @brief Get the capture capabilities of a display object.
+ * @param[in] dpy A display object
+ * @param[out] capabilities The capture capabilities
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_capture_capabilities(tdm_display *dpy,
+ tdm_capture_capability *capabilities);
+
+/**
+ * @brief Get the capture available format array of a display object.
+ * @param[in] dpy A display object
+ * @param[out] formats The capture available format array
+ * @param[out] count The count of formats
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_catpure_available_formats(tdm_display *dpy,
+ const tbm_format **formats, int *count);
+
+/**
+ * @brief Get the output counts which a display object has.
+ * @param[in] dpy A display object
+ * @param[out] count The count of outputs
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_display_get_output
+ */
+tdm_error
+tdm_display_get_output_count(tdm_display *dpy, int *count);
+
+/**
+ * @brief Get a output object which has the given index.
+ * @param[in] dpy A display object
+ * @param[in] index The index of a output object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A output object if success. Otherwise, NULL.
+ * @see tdm_display_get_output_count
+ */
+tdm_output *
+tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error);
+
+/**
+ * @brief Create a pp object.
+ * @param[in] dpy A display object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A pp object if success. Otherwise, NULL.
+ * @see tdm_pp_destroy
+ */
+tdm_pp *
+tdm_display_create_pp(tdm_display *dpy, tdm_error *error);
+
+/**
+ * @brief Get the model information of a output object.
+ * @param[in] output A output object
+ * @param[out] maker The output maker.
+ * @param[out] model The output model.
+ * @param[out] name The output name.
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_model_info(tdm_output *output, const char **maker,
+ const char **model, const char **name);
+
+/**
+ * @brief Get the connection status of a output object.
+ * @param[in] output A output object
+ * @param[out] status The connection status.
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status);
+
+/**
+ * @brief Add a output change handler
+ * @details The handler will be called when the status of a
+ * output object is changed. connection, DPMS, etc.
+ * @param[in] output A output object
+ * @param[in] func A output change handler
+ * @param[in] user_data The user data
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_add_change_handler(tdm_output *output,
+ tdm_output_change_handler func,
+ void *user_data);
+
+/**
+ * @brief Remove a output change handler
+ * @param[in] output A output object
+ * @param[in] func A output change handler
+ * @param[in] user_data The user data
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+void
+tdm_output_remove_change_handler(tdm_output *output,
+ tdm_output_change_handler func,
+ void *user_data);
+
+/**
+ * @brief Get the connection type of a output object.
+ * @param[in] output A output object
+ * @param[out] type The connection type.
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_output_type(tdm_output *output, tdm_output_type *type);
+
+/**
+ * @brief Get the layer counts which a output object has.
+ * @param[in] output A output object
+ * @param[out] count The count of layers
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_output_get_layer
+ */
+tdm_error
+tdm_output_get_layer_count(tdm_output *output, int *count);
+
+/**
+ * @brief Get a layer object which has the given index.
+ * @param[in] output A output object
+ * @param[in] index The index of a layer object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A layer object if success. Otherwise, NULL.
+ * @see tdm_output_get_layer_count
+ */
+tdm_layer *
+tdm_output_get_layer(tdm_output *output, int index, tdm_error *error);
+
+/**
+ * @brief Get the available property array of a output object.
+ * @param[in] output A output object
+ * @param[out] props The available property array
+ * @param[out] count The count of properties
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props,
+ int *count);
+
+/**
+ * @brief Get the available mode array of a output object.
+ * @param[in] output A output object
+ * @param[out] modes The available mode array
+ * @param[out] count The count of modes
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_available_modes(tdm_output *output,
+ const tdm_output_mode **modes, int *count);
+
+/**
+ * @brief Get the available size of a output object.
+ * @details -1 means that a TDM backend module doesn't define the value.
+ * @param[in] output A output object
+ * @param[out] min_w The minimum width which TDM can handle
+ * @param[out] min_h The minimum height which TDM can handle
+ * @param[out] max_w The maximum width which TDM can handle
+ * @param[out] max_h The maximum height which TDM can handle
+ * @param[out] preferred_align The preferred align width which TDM can handle
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h,
+ int *max_w, int *max_h, int *preferred_align);
+
+/**
+ * @brief Get the physical size of a output object.
+ * @param[in] output A output object
+ * @param[out] mmWidth The milimeter width
+ * @param[out] mmHeight The milimeter height
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth,
+ unsigned int *mmHeight);
+
+/**
+ * @brief Get the subpixel of a output object.
+ * @param[in] output A output object
+ * @param[out] subpixel The subpixel
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel);
+
+/**
+ * @brief Get the pipe of a output object.
+ * @param[in] output A output object
+ * @param[out] pipe The pipe
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_pipe(tdm_output *output, unsigned int *pipe);
+
+/**
+ * @brief Set the property which has a given id.
+ * @param[in] output A output object
+ * @param[in] id The property id
+ * @param[in] value The value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value);
+
+/**
+ * @brief Get the property which has a given id
+ * @param[in] output A output object
+ * @param[in] id The property id
+ * @param[out] value The value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value);
+
+/**
+ * @brief Wait for VBLANK
+ * @details After interval vblanks, a user vblank handler will be called.
+ * @param[in] output A output object
+ * @param[in] interval vblank interval
+ * @param[in] sync 0: asynchronous, 1:synchronous
+ * @param[in] func A user vblank handler
+ * @param[in] user_data The user data
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see #tdm_output_vblank_handler
+ */
+tdm_error
+tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
+ tdm_output_vblank_handler func, void *user_data);
+
+/**
+ * @brief Commit changes for a output object
+ * @details After all change of a output object are applied, a user commit handler
+ * will be called.
+ * @param[in] output A output object
+ * @param[in] sync 0: asynchronous, 1:synchronous
+ * @param[in] func A user commit handler
+ * @param[in] user_data The user data
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
+ void *user_data);
+
+/**
+ * @brief Set one of available modes of a output object
+ * @param[in] output A output object
+ * @param[in] mode A output mode
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_set_mode(tdm_output *output, const tdm_output_mode *mode);
+
+/**
+ * @brief Get the mode of a output object
+ * @param[in] output A output object
+ * @param[out] mode A output mode
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode);
+
+/**
+ * @brief Set DPMS of a output object
+ * @param[in] output A output object
+ * @param[in] dpms_value DPMS value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value);
+
+/**
+ * @brief Get DPMS of a output object
+ * @param[in] output A output object
+ * @param[out] dpms_value DPMS value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value);
+
+/**
+ * @brief Create a capture object of a output object
+ * @param[in] output A output object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A capture object
+ * @see tdm_capture_destroy
+ */
+tdm_capture *
+tdm_output_create_capture(tdm_output *output, tdm_error *error);
+
+/**
+ * @brief Get the capabilities of a layer object.
+ * @param[in] layer A layer object
+ * @param[out] capabilities The capabilities of a layer object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_capabilities(tdm_layer *layer,
+ tdm_layer_capability *capabilities);
+
+/**
+ * @brief Get the available format array of a layer object.
+ * @param[in] layer A layer object
+ * @param[out] formats The available format array
+ * @param[out] count The count of formats
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_available_formats(tdm_layer *layer, const tbm_format **formats,
+ int *count);
+
+/**
+ * @brief Get the available property array of a layer object.
+ * @param[in] layer A layer object
+ * @param[out] props The available property array
+ * @param[out] count The count of properties
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_available_properties(tdm_layer *layer, const tdm_prop **props,
+ int *count);
+
+/**
+ * @brief Get the zpos of a layer object.
+ * @details
+ * - GRAPHIC layers have fixed zpos. It starts from 0. It's @b non-changeable.
+ * - But the zpos of VIDEO layers will be decided by a backend module side.
+ * - A frontend user only can set the relative zpos to VIDEO layers via #tdm_layer_set_video_pos
+ * - The zpos of video layers is less than GRAPHIC layers or more than GRAPHIC
+ * layers. ie, ..., -2, -1, 4, 5, ... (if 0 <= GRAPHIC layer's zpos < 4).
+ * -------------------------------- graphic layer 3 <-- top most layer
+ * -------------------------------- graphic layer 2
+ * -------------------------------- graphic layer 1
+ * -------------------------------- graphic layer 0
+ * -------------------------------- video layer -1
+ * -------------------------------- video layer -2 <-- lowest layer
+ * @param[in] layer A layer object
+ * @param[out] zpos The zpos
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_layer_set_video_pos, tdm_layer_capability
+ */
+tdm_error
+tdm_layer_get_zpos(tdm_layer *layer, int *zpos);
+
+/**
+ * @brief Set the property which has a given id.
+ * @param[in] layer A layer object
+ * @param[in] id The property id
+ * @param[in] value The value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value);
+
+/**
+ * @brief Get the property which has a given id.
+ * @param[in] layer A layer object
+ * @param[in] id The property id
+ * @param[out] value The value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value);
+
+/**
+ * @brief Set the geometry information to a layer object
+ * @details The geometry information will be applied when the output object
+ * of a layer object is committed. If a layer has TDM_LAYER_CAPABILITY_NO_CROP
+ * capability, a layer will ignore the pos(crop) information of #tdm_info_layer's
+ * src_config.
+ * @param[in] layer A layer object
+ * @param[in] info The geometry information
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_output_commit
+ */
+tdm_error
+tdm_layer_set_info(tdm_layer *layer, tdm_info_layer *info);
+
+/**
+ * @brief Get the geometry information to a layer object
+ * @param[in] layer A layer object
+ * @param[out] info The geometry information
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_info(tdm_layer *layer, tdm_info_layer *info);
+
+/**
+ * @brief Set a TDM buffer to a layer object
+ * @details A TDM buffer will be applied when the output object
+ * of a layer object is committed.
+ * @param[in] layer A layer object
+ * @param[in] buffer A TDM buffer
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_output_commit
+ */
+tdm_error
+tdm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer);
+
+/**
+ * @brief Unset a TDM buffer from a layer object
+ * @details When this function is called, a current showing buffer will be
+ * disappeared from screen. Then nothing is showing on a layer object.
+ * @param[in] layer A layer object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_unset_buffer(tdm_layer *layer);
+
+/**
+ * @brief Get a displaying TDM buffer from a layer object
+ * @details A displaying TDM buffer is a current showing buffer on screen
+ * that is set to layer object and applied output object of a layer object.
+ * @param[in] layer A layer object
+ * @return A TDM buffer if success. Otherwise, NULL.
+ */
+tbm_surface_h
+tdm_layer_get_displaying_buffer(tdm_layer *layer, tdm_error *error);
+
+/**
+ * @brief Set a TBM surface_queue to a layer object
+ * @details A TBM surface_queue will be applied when the output object
+ * of a layer object is committed. and TDM layer will be automatically updated
+ * @param[in] layer A layer object
+ * @param[in] buffer_queue A TBM surface_queue
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_output_commit
+ */
+tdm_error
+tdm_layer_set_buffer_queue(tdm_layer *layer, tbm_surface_queue_h buffer_queue);
+
+/**
+ * @brief Unset a TBM surface_queue from a layer object
+ * @details When this function is called, a current surface_queue will be
+ * disappeared from screen. Then nothing is showing on a layer object.
+ * @param[in] layer A layer object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_unset_buffer_queue(tdm_layer *layer);
+
+/**
+ * @brief Check wheter a layer object is available for a frontend user to use.
+ * @details A layer object is not usable if a TDM buffer is showing on screen
+ * via this layer object. By calling #tdm_layer_unset_buffer, this layer object
+ * will become usable.
+ * @param[in] layer A layer object
+ * @param[out] usable 1 if usable, 0 if not usable
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_is_usable(tdm_layer *layer, unsigned int *usable);
+
+/**
+ * @brief Set the relative zpos to a VIDEO layer object
+ * @details The zpos value is less than the minimum zpos of GRAPHIC layers, or
+ * it is more than the maximum zpos of GRAPHIC layers.
+ * @param[in] layer A VIDEO layer object
+ * @param[in] zpos The zpos
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_layer_get_zpos, tdm_layer_capability
+ */
+tdm_error
+tdm_layer_set_video_pos(tdm_layer *layer, int zpos);
+
+/**
+ * @brief Create a capture object of a layer object
+ * @param[in] layer A layer object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A capture object
+ * @see tdm_capture_destroy
+ */
+tdm_capture *
+tdm_layer_create_capture(tdm_layer *layer, tdm_error *error);
+
+/**
+ * @brief Get buffer flags from a layer object
+ * @param[in] layer A layer object
+ * @param[out] flags a buffer flags value
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_layer_get_buffer_flags(tdm_layer *layer, unsigned int *flags);
+
+/**
+ * @brief Destroy a pp object
+ * @param[in] pp A pp object
+ * @see tdm_display_create_pp
+ */
+void
+tdm_pp_destroy(tdm_pp *pp);
+
+/**
+ * @brief Set the geometry information to a pp object
+ * @param[in] pp A pp object
+ * @param[in] info The geometry information
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_pp_commit
+ */
+tdm_error
+tdm_pp_set_info(tdm_pp *pp, tdm_info_pp *info);
+
+/**
+ * @brief Attach a source buffer and a destination buffer to a pp object
+ * @param[in] pp A pp object
+ * @param[in] src A source buffer
+ * @param[in] dst A destination buffer
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_pp_commit, tdm_buffer_add_release_handler, tdm_buffer_release_handler
+ */
+tdm_error
+tdm_pp_attach(tdm_pp *pp, tbm_surface_h src, tbm_surface_h dst);
+
+/**
+ * @brief Commit changes for a pp object
+ * @param[in] pp A pp object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_pp_commit(tdm_pp *pp);
+
+/**
+ * @brief Destroy a capture object
+ * @param[in] capture A capture object
+ * @see tdm_output_create_capture, tdm_layer_create_capture
+ */
+void
+tdm_capture_destroy(tdm_capture *capture);
+
+/**
+ * @brief Set the geometry information to a capture object
+ * @param[in] capture A capture object
+ * @param[in] info The geometry information
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_capture_commit
+ */
+tdm_error
+tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info);
+
+/**
+ * @brief Attach a TDM buffer to a capture object
+ * @param[in] capture A capture object
+ * @param[in] buffer A TDM buffer
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_capture_commit, tdm_buffer_add_release_handler, tdm_buffer_release_handler
+ */
+tdm_error
+tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer);
+
+/**
+ * @brief Commit changes for a capture object
+ * @param[in] capture A capture object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_capture_commit(tdm_capture *capture);
+
+/**
+ * @brief The release handler of a TDM buffer
+ * @param[in] buffer A TDM buffer
+ * @param[in] user_data user data
+ * @see tdm_buffer_add_release_handler, tdm_buffer_remove_release_handler
+ */
+typedef void (*tdm_buffer_release_handler)(tbm_surface_h buffer,
+ void *user_data);
+
+/**
+ * @brief Add a release handler to a TDM buffer
+ * @details
+ * TDM has its own buffer release mechanism to let an frontend user know when a TDM buffer
+ * becomes available for a next job. A TDM buffer can be used for TDM to show
+ * it on screen or to capture an output and a layer. After all operations,
+ * TDM will release it immediately when TDM doesn't need it any more.
+ * @param[in] buffer A TDM buffer
+ * @param[in] func A release handler
+ * @param[in] user_data user data
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @see tdm_buffer_remove_release_handler
+ */
+tdm_error
+tdm_buffer_add_release_handler(tbm_surface_h buffer,
+ tdm_buffer_release_handler func, void *user_data);
+
+/**
+ * @brief Remove a release handler from a TDM buffer
+ * @param[in] buffer A TDM buffer
+ * @param[in] func A release handler
+ * @param[in] user_data user data
+ * @see tdm_buffer_add_release_handler
+ */
+void
+tdm_buffer_remove_release_handler(tbm_surface_h buffer,
+ tdm_buffer_release_handler func, void *user_data);
#ifdef __cplusplus
}