/* Generated by wayland-scanner 1.23.0 */ #ifndef LINUX_DMABUF_UNSTABLE_V1_CLIENT_PROTOCOL_H #define LINUX_DMABUF_UNSTABLE_V1_CLIENT_PROTOCOL_H #include #include #include "wayland-client.h" #ifdef __cplusplus extern "C" { #endif /** * @page page_linux_dmabuf_unstable_v1 The linux_dmabuf_unstable_v1 protocol * @section page_ifaces_linux_dmabuf_unstable_v1 Interfaces * - @subpage page_iface_zwp_linux_dmabuf_v1 - factory for creating dmabuf-based * wl_buffers * - @subpage page_iface_zwp_linux_buffer_params_v1 - parameters for creating a * dmabuf-based wl_buffer * - @subpage page_iface_zwp_linux_dmabuf_feedback_v1 - dmabuf feedback * @section page_copyright_linux_dmabuf_unstable_v1 Copyright *
 *
 * Copyright © 2014, 2015 Collabora, Ltd.
 *
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
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 * 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.
 * 
*/ struct wl_buffer; struct wl_surface; struct zwp_linux_buffer_params_v1; struct zwp_linux_dmabuf_feedback_v1; struct zwp_linux_dmabuf_v1; #ifndef ZWP_LINUX_DMABUF_V1_INTERFACE # define ZWP_LINUX_DMABUF_V1_INTERFACE /** * @page page_iface_zwp_linux_dmabuf_v1 zwp_linux_dmabuf_v1 * @section page_iface_zwp_linux_dmabuf_v1_desc Description * * Following the interfaces from: * https://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_image_dma_buf_import.txt * https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import_modifiers.txt * and the Linux DRM sub-system's AddFb2 ioctl. * * This interface offers ways to create generic dmabuf-based wl_buffers. * * Clients can use the get_surface_feedback request to get dmabuf feedback * for a particular surface. If the client wants to retrieve feedback not * tied to a surface, they can use the get_default_feedback request. * * The following are required from clients: * * - Clients must ensure that either all data in the dma-buf is * coherent for all subsequent read access or that coherency is * correctly handled by the underlying kernel-side dma-buf * implementation. * * - Don't make any more attachments after sending the buffer to the * compositor. Making more attachments later increases the risk of * the compositor not being able to use (re-import) an existing * dmabuf-based wl_buffer. * * The underlying graphics stack must ensure the following: * * - The dmabuf file descriptors relayed to the server will stay valid * for the whole lifetime of the wl_buffer. This means the server may * at any time use those fds to import the dmabuf into any kernel * sub-system that might accept it. * * However, when the underlying graphics stack fails to deliver the * promise, because of e.g. a device hot-unplug which raises internal * errors, after the wl_buffer has been successfully created the * compositor must not raise protocol errors to the client when dmabuf * import later fails. * * To create a wl_buffer from one or more dmabufs, a client creates a * zwp_linux_dmabuf_params_v1 object with a zwp_linux_dmabuf_v1.create_params * request. All planes required by the intended format are added with * the 'add' request. Finally, a 'create' or 'create_immed' request is * issued, which has the following outcome depending on the import success. * * The 'create' request, * - on success, triggers a 'created' event which provides the final * wl_buffer to the client. * - on failure, triggers a 'failed' event to convey that the server * cannot use the dmabufs received from the client. * * For the 'create_immed' request, * - on success, the server immediately imports the added dmabufs to * create a wl_buffer. No event is sent from the server in this case. * - on failure, the server can choose to either: * - terminate the client by raising a fatal error. * - mark the wl_buffer as failed, and send a 'failed' event to the * client. If the client uses a failed wl_buffer as an argument to any * request, the behaviour is compositor implementation-defined. * * For all DRM formats and unless specified in another protocol extension, * pre-multiplied alpha is used for pixel values. * * Unless specified otherwise in another protocol extension, implicit * synchronization is used. In other words, compositors and clients must * wait and signal fences implicitly passed via the DMA-BUF's reservation * mechanism. * * Disclaimer: This protocol extension has been marked stable. This copy is * no longer used and only retained for backwards compatibility. The * canonical version can be found in the stable/ directory. * @section page_iface_zwp_linux_dmabuf_v1_api API * See @ref iface_zwp_linux_dmabuf_v1. */ /** * @defgroup iface_zwp_linux_dmabuf_v1 The zwp_linux_dmabuf_v1 interface * * Following the interfaces from: * https://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_image_dma_buf_import.txt * https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import_modifiers.txt * and the Linux DRM sub-system's AddFb2 ioctl. * * This interface offers ways to create generic dmabuf-based wl_buffers. * * Clients can use the get_surface_feedback request to get dmabuf feedback * for a particular surface. If the client wants to retrieve feedback not * tied to a surface, they can use the get_default_feedback request. * * The following are required from clients: * * - Clients must ensure that either all data in the dma-buf is * coherent for all subsequent read access or that coherency is * correctly handled by the underlying kernel-side dma-buf * implementation. * * - Don't make any more attachments after sending the buffer to the * compositor. Making more attachments later increases the risk of * the compositor not being able to use (re-import) an existing * dmabuf-based wl_buffer. * * The underlying graphics stack must ensure the following: * * - The dmabuf file descriptors relayed to the server will stay valid * for the whole lifetime of the wl_buffer. This means the server may * at any time use those fds to import the dmabuf into any kernel * sub-system that might accept it. * * However, when the underlying graphics stack fails to deliver the * promise, because of e.g. a device hot-unplug which raises internal * errors, after the wl_buffer has been successfully created the * compositor must not raise protocol errors to the client when dmabuf * import later fails. * * To create a wl_buffer from one or more dmabufs, a client creates a * zwp_linux_dmabuf_params_v1 object with a zwp_linux_dmabuf_v1.create_params * request. All planes required by the intended format are added with * the 'add' request. Finally, a 'create' or 'create_immed' request is * issued, which has the following outcome depending on the import success. * * The 'create' request, * - on success, triggers a 'created' event which provides the final * wl_buffer to the client. * - on failure, triggers a 'failed' event to convey that the server * cannot use the dmabufs received from the client. * * For the 'create_immed' request, * - on success, the server immediately imports the added dmabufs to * create a wl_buffer. No event is sent from the server in this case. * - on failure, the server can choose to either: * - terminate the client by raising a fatal error. * - mark the wl_buffer as failed, and send a 'failed' event to the * client. If the client uses a failed wl_buffer as an argument to any * request, the behaviour is compositor implementation-defined. * * For all DRM formats and unless specified in another protocol extension, * pre-multiplied alpha is used for pixel values. * * Unless specified otherwise in another protocol extension, implicit * synchronization is used. In other words, compositors and clients must * wait and signal fences implicitly passed via the DMA-BUF's reservation * mechanism. * * Disclaimer: This protocol extension has been marked stable. This copy is * no longer used and only retained for backwards compatibility. The * canonical version can be found in the stable/ directory. */ extern const struct wl_interface zwp_linux_dmabuf_v1_interface; #endif #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_INTERFACE # define ZWP_LINUX_BUFFER_PARAMS_V1_INTERFACE /** * @page page_iface_zwp_linux_buffer_params_v1 zwp_linux_buffer_params_v1 * @section page_iface_zwp_linux_buffer_params_v1_desc Description * * This temporary object is a collection of dmabufs and other * parameters that together form a single logical buffer. The temporary * object may eventually create one wl_buffer unless cancelled by * destroying it before requesting 'create'. * * Single-planar formats only require one dmabuf, however * multi-planar formats may require more than one dmabuf. For all * formats, an 'add' request must be called once per plane (even if the * underlying dmabuf fd is identical). * * You must use consecutive plane indices ('plane_idx' argument for 'add') * from zero to the number of planes used by the drm_fourcc format code. * All planes required by the format must be given exactly once, but can * be given in any order. Each plane index can be set only once. * @section page_iface_zwp_linux_buffer_params_v1_api API * See @ref iface_zwp_linux_buffer_params_v1. */ /** * @defgroup iface_zwp_linux_buffer_params_v1 The zwp_linux_buffer_params_v1 * interface * * This temporary object is a collection of dmabufs and other * parameters that together form a single logical buffer. The temporary * object may eventually create one wl_buffer unless cancelled by * destroying it before requesting 'create'. * * Single-planar formats only require one dmabuf, however * multi-planar formats may require more than one dmabuf. For all * formats, an 'add' request must be called once per plane (even if the * underlying dmabuf fd is identical). * * You must use consecutive plane indices ('plane_idx' argument for 'add') * from zero to the number of planes used by the drm_fourcc format code. * All planes required by the format must be given exactly once, but can * be given in any order. Each plane index can be set only once. */ extern const struct wl_interface zwp_linux_buffer_params_v1_interface; #endif #ifndef ZWP_LINUX_DMABUF_FEEDBACK_V1_INTERFACE # define ZWP_LINUX_DMABUF_FEEDBACK_V1_INTERFACE /** * @page page_iface_zwp_linux_dmabuf_feedback_v1 zwp_linux_dmabuf_feedback_v1 * @section page_iface_zwp_linux_dmabuf_feedback_v1_desc Description * * This object advertises dmabuf parameters feedback. This includes the * preferred devices and the supported formats/modifiers. * * The parameters are sent once when this object is created and whenever they * change. The done event is always sent once after all parameters have been * sent. When a single parameter changes, all parameters are re-sent by the * compositor. * * Compositors can re-send the parameters when the current client buffer * allocations are sub-optimal. Compositors should not re-send the * parameters if re-allocating the buffers would not result in a more optimal * configuration. In particular, compositors should avoid sending the exact * same parameters multiple times in a row. * * The tranche_target_device and tranche_formats events are grouped by * tranches of preference. For each tranche, a tranche_target_device, one * tranche_flags and one or more tranche_formats events are sent, followed * by a tranche_done event finishing the list. The tranches are sent in * descending order of preference. All formats and modifiers in the same * tranche have the same preference. * * To send parameters, the compositor sends one main_device event, tranches * (each consisting of one tranche_target_device event, one tranche_flags * event, tranche_formats events and then a tranche_done event), then one * done event. * @section page_iface_zwp_linux_dmabuf_feedback_v1_api API * See @ref iface_zwp_linux_dmabuf_feedback_v1. */ /** * @defgroup iface_zwp_linux_dmabuf_feedback_v1 The zwp_linux_dmabuf_feedback_v1 * interface * * This object advertises dmabuf parameters feedback. This includes the * preferred devices and the supported formats/modifiers. * * The parameters are sent once when this object is created and whenever they * change. The done event is always sent once after all parameters have been * sent. When a single parameter changes, all parameters are re-sent by the * compositor. * * Compositors can re-send the parameters when the current client buffer * allocations are sub-optimal. Compositors should not re-send the * parameters if re-allocating the buffers would not result in a more optimal * configuration. In particular, compositors should avoid sending the exact * same parameters multiple times in a row. * * The tranche_target_device and tranche_formats events are grouped by * tranches of preference. For each tranche, a tranche_target_device, one * tranche_flags and one or more tranche_formats events are sent, followed * by a tranche_done event finishing the list. The tranches are sent in * descending order of preference. All formats and modifiers in the same * tranche have the same preference. * * To send parameters, the compositor sends one main_device event, tranches * (each consisting of one tranche_target_device event, one tranche_flags * event, tranche_formats events and then a tranche_done event), then one * done event. */ extern const struct wl_interface zwp_linux_dmabuf_feedback_v1_interface; #endif /** * @ingroup iface_zwp_linux_dmabuf_v1 * @struct zwp_linux_dmabuf_v1_listener */ struct zwp_linux_dmabuf_v1_listener { /** * supported buffer format * * This event advertises one buffer format that the server * supports. All the supported formats are advertised once when the * client binds to this interface. A roundtrip after binding * guarantees that the client has received all supported formats. * * For the definition of the format codes, see the * zwp_linux_buffer_params_v1::create request. * * Starting version 4, the format event is deprecated and must not * be sent by compositors. Instead, use get_default_feedback or * get_surface_feedback. * @param format DRM_FORMAT code */ void (*format)(void* data, struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1, uint32_t format); /** * supported buffer format modifier * * This event advertises the formats that the server supports, * along with the modifiers supported for each format. All the * supported modifiers for all the supported formats are advertised * once when the client binds to this interface. A roundtrip after * binding guarantees that the client has received all supported * format-modifier pairs. * * For legacy support, DRM_FORMAT_MOD_INVALID (that is, modifier_hi * == 0x00ffffff and modifier_lo == 0xffffffff) is allowed in this * event. It indicates that the server can support the format with * an implicit modifier. When a plane has DRM_FORMAT_MOD_INVALID as * its modifier, it is as if no explicit modifier is specified. The * effective modifier will be derived from the dmabuf. * * A compositor that sends valid modifiers and * DRM_FORMAT_MOD_INVALID for a given format supports both explicit * modifiers and implicit modifiers. * * For the definition of the format and modifier codes, see the * zwp_linux_buffer_params_v1::create and * zwp_linux_buffer_params_v1::add requests. * * Starting version 4, the modifier event is deprecated and must * not be sent by compositors. Instead, use get_default_feedback or * get_surface_feedback. * @param format DRM_FORMAT code * @param modifier_hi high 32 bits of layout modifier * @param modifier_lo low 32 bits of layout modifier * @since 3 */ void (*modifier)(void* data, struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1, uint32_t format, uint32_t modifier_hi, uint32_t modifier_lo); }; /** * @ingroup iface_zwp_linux_dmabuf_v1 */ static inline int zwp_linux_dmabuf_v1_add_listener( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1, const struct zwp_linux_dmabuf_v1_listener* listener, void* data) { return wl_proxy_add_listener((struct wl_proxy*)zwp_linux_dmabuf_v1, (void (**)(void))listener, data); } #define ZWP_LINUX_DMABUF_V1_DESTROY 0 #define ZWP_LINUX_DMABUF_V1_CREATE_PARAMS 1 #define ZWP_LINUX_DMABUF_V1_GET_DEFAULT_FEEDBACK 2 #define ZWP_LINUX_DMABUF_V1_GET_SURFACE_FEEDBACK 3 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_FORMAT_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_MODIFIER_SINCE_VERSION 3 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_DESTROY_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_CREATE_PARAMS_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_GET_DEFAULT_FEEDBACK_SINCE_VERSION 4 /** * @ingroup iface_zwp_linux_dmabuf_v1 */ #define ZWP_LINUX_DMABUF_V1_GET_SURFACE_FEEDBACK_SINCE_VERSION 4 /** @ingroup iface_zwp_linux_dmabuf_v1 */ static inline void zwp_linux_dmabuf_v1_set_user_data( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1, void* user_data) { wl_proxy_set_user_data((struct wl_proxy*)zwp_linux_dmabuf_v1, user_data); } /** @ingroup iface_zwp_linux_dmabuf_v1 */ static inline void* zwp_linux_dmabuf_v1_get_user_data( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1) { return wl_proxy_get_user_data((struct wl_proxy*)zwp_linux_dmabuf_v1); } static inline uint32_t zwp_linux_dmabuf_v1_get_version( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1) { return wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_v1); } /** * @ingroup iface_zwp_linux_dmabuf_v1 * * Objects created through this interface, especially wl_buffers, will * remain valid. */ static inline void zwp_linux_dmabuf_v1_destroy( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1) { wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_dmabuf_v1, ZWP_LINUX_DMABUF_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_v1), WL_MARSHAL_FLAG_DESTROY); } /** * @ingroup iface_zwp_linux_dmabuf_v1 * * This temporary object is used to collect multiple dmabuf handles into * a single batch to create a wl_buffer. It can only be used once and * should be destroyed after a 'created' or 'failed' event has been * received. */ static inline struct zwp_linux_buffer_params_v1* zwp_linux_dmabuf_v1_create_params( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1) { struct wl_proxy* params_id; params_id = wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_dmabuf_v1, ZWP_LINUX_DMABUF_V1_CREATE_PARAMS, &zwp_linux_buffer_params_v1_interface, wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_v1), 0, NULL); return (struct zwp_linux_buffer_params_v1*)params_id; } /** * @ingroup iface_zwp_linux_dmabuf_v1 * * This request creates a new wp_linux_dmabuf_feedback object not bound * to a particular surface. This object will deliver feedback about dmabuf * parameters to use if the client doesn't support per-surface feedback * (see get_surface_feedback). */ static inline struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_v1_get_default_feedback( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1) { struct wl_proxy* id; id = wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_dmabuf_v1, ZWP_LINUX_DMABUF_V1_GET_DEFAULT_FEEDBACK, &zwp_linux_dmabuf_feedback_v1_interface, wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_v1), 0, NULL); return (struct zwp_linux_dmabuf_feedback_v1*)id; } /** * @ingroup iface_zwp_linux_dmabuf_v1 * * This request creates a new wp_linux_dmabuf_feedback object for the * specified wl_surface. This object will deliver feedback about dmabuf * parameters to use for buffers attached to this surface. * * If the surface is destroyed before the wp_linux_dmabuf_feedback object, * the feedback object becomes inert. */ static inline struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_v1_get_surface_feedback( struct zwp_linux_dmabuf_v1* zwp_linux_dmabuf_v1, struct wl_surface* surface) { struct wl_proxy* id; id = wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_dmabuf_v1, ZWP_LINUX_DMABUF_V1_GET_SURFACE_FEEDBACK, &zwp_linux_dmabuf_feedback_v1_interface, wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_v1), 0, NULL, surface); return (struct zwp_linux_dmabuf_feedback_v1*)id; } #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM # define ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM enum zwp_linux_buffer_params_v1_error { /** * the dmabuf_batch object has already been used to create a wl_buffer */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ALREADY_USED = 0, /** * plane index out of bounds */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_PLANE_IDX = 1, /** * the plane index was already set */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_PLANE_SET = 2, /** * missing or too many planes to create a buffer */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INCOMPLETE = 3, /** * format not supported */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_FORMAT = 4, /** * invalid width or height */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_DIMENSIONS = 5, /** * offset + stride * height goes out of dmabuf bounds */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_OUT_OF_BOUNDS = 6, /** * invalid wl_buffer resulted from importing dmabufs via the * create_immed request on given buffer_params */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_WL_BUFFER = 7, }; #endif /* ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM */ #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM # define ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM enum zwp_linux_buffer_params_v1_flags { /** * contents are y-inverted */ ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT = 1, /** * content is interlaced */ ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_INTERLACED = 2, /** * bottom field first */ ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_BOTTOM_FIRST = 4, }; #endif /* ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM */ /** * @ingroup iface_zwp_linux_buffer_params_v1 * @struct zwp_linux_buffer_params_v1_listener */ struct zwp_linux_buffer_params_v1_listener { /** * buffer creation succeeded * * This event indicates that the attempted buffer creation was * successful. It provides the new wl_buffer referencing the * dmabuf(s). * * Upon receiving this event, the client should destroy the * zwp_linux_buffer_params_v1 object. * @param buffer the newly created wl_buffer */ void (*created)(void* data, struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, struct wl_buffer* buffer); /** * buffer creation failed * * This event indicates that the attempted buffer creation has * failed. It usually means that one of the dmabuf constraints has * not been fulfilled. * * Upon receiving this event, the client should destroy the * zwp_linux_buffer_params_v1 object. */ void (*failed)(void* data, struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1); }; /** * @ingroup iface_zwp_linux_buffer_params_v1 */ static inline int zwp_linux_buffer_params_v1_add_listener( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, const struct zwp_linux_buffer_params_v1_listener* listener, void* data) { return wl_proxy_add_listener((struct wl_proxy*)zwp_linux_buffer_params_v1, (void (**)(void))listener, data); } #define ZWP_LINUX_BUFFER_PARAMS_V1_DESTROY 0 #define ZWP_LINUX_BUFFER_PARAMS_V1_ADD 1 #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATE 2 #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATE_IMMED 3 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATED_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_FAILED_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_DESTROY_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_ADD_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_buffer_params_v1 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATE_IMMED_SINCE_VERSION 2 /** @ingroup iface_zwp_linux_buffer_params_v1 */ static inline void zwp_linux_buffer_params_v1_set_user_data( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, void* user_data) { wl_proxy_set_user_data((struct wl_proxy*)zwp_linux_buffer_params_v1, user_data); } /** @ingroup iface_zwp_linux_buffer_params_v1 */ static inline void* zwp_linux_buffer_params_v1_get_user_data( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1) { return wl_proxy_get_user_data((struct wl_proxy*)zwp_linux_buffer_params_v1); } static inline uint32_t zwp_linux_buffer_params_v1_get_version( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1) { return wl_proxy_get_version((struct wl_proxy*)zwp_linux_buffer_params_v1); } /** * @ingroup iface_zwp_linux_buffer_params_v1 * * Cleans up the temporary data sent to the server for dmabuf-based * wl_buffer creation. */ static inline void zwp_linux_buffer_params_v1_destroy( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1) { wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_buffer_params_v1, ZWP_LINUX_BUFFER_PARAMS_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy*)zwp_linux_buffer_params_v1), WL_MARSHAL_FLAG_DESTROY); } /** * @ingroup iface_zwp_linux_buffer_params_v1 * * This request adds one dmabuf to the set in this * zwp_linux_buffer_params_v1. * * The 64-bit unsigned value combined from modifier_hi and modifier_lo * is the dmabuf layout modifier. DRM AddFB2 ioctl calls this the * fb modifier, which is defined in drm_mode.h of Linux UAPI. * This is an opaque token. Drivers use this token to express tiling, * compression, etc. driver-specific modifications to the base format * defined by the DRM fourcc code. * * Starting from version 4, the invalid_format protocol error is sent if * the format + modifier pair was not advertised as supported. * * Starting from version 5, the invalid_format protocol error is sent if * all planes don't use the same modifier. * * This request raises the PLANE_IDX error if plane_idx is too large. * The error PLANE_SET is raised if attempting to set a plane that * was already set. */ static inline void zwp_linux_buffer_params_v1_add( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, int32_t fd, uint32_t plane_idx, uint32_t offset, uint32_t stride, uint32_t modifier_hi, uint32_t modifier_lo) { wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_buffer_params_v1, ZWP_LINUX_BUFFER_PARAMS_V1_ADD, NULL, wl_proxy_get_version((struct wl_proxy*)zwp_linux_buffer_params_v1), 0, fd, plane_idx, offset, stride, modifier_hi, modifier_lo); } /** * @ingroup iface_zwp_linux_buffer_params_v1 * * This asks for creation of a wl_buffer from the added dmabuf * buffers. The wl_buffer is not created immediately but returned via * the 'created' event if the dmabuf sharing succeeds. The sharing * may fail at runtime for reasons a client cannot predict, in * which case the 'failed' event is triggered. * * The 'format' argument is a DRM_FORMAT code, as defined by the * libdrm's drm_fourcc.h. The Linux kernel's DRM sub-system is the * authoritative source on how the format codes should work. * * The 'flags' is a bitfield of the flags defined in enum "flags". * 'y_invert' means the that the image needs to be y-flipped. * * Flag 'interlaced' means that the frame in the buffer is not * progressive as usual, but interlaced. An interlaced buffer as * supported here must always contain both top and bottom fields. * The top field always begins on the first pixel row. The temporal * ordering between the two fields is top field first, unless * 'bottom_first' is specified. It is undefined whether 'bottom_first' * is ignored if 'interlaced' is not set. * * This protocol does not convey any information about field rate, * duration, or timing, other than the relative ordering between the * two fields in one buffer. A compositor may have to estimate the * intended field rate from the incoming buffer rate. It is undefined * whether the time of receiving wl_surface.commit with a new buffer * attached, applying the wl_surface state, wl_surface.frame callback * trigger, presentation, or any other point in the compositor cycle * is used to measure the frame or field times. There is no support * for detecting missed or late frames/fields/buffers either, and * there is no support whatsoever for cooperating with interlaced * compositor output. * * The composited image quality resulting from the use of interlaced * buffers is explicitly undefined. A compositor may use elaborate * hardware features or software to deinterlace and create progressive * output frames from a sequence of interlaced input buffers, or it * may produce substandard image quality. However, compositors that * cannot guarantee reasonable image quality in all cases are recommended * to just reject all interlaced buffers. * * Any argument errors, including non-positive width or height, * mismatch between the number of planes and the format, bad * format, bad offset or stride, may be indicated by fatal protocol * errors: INCOMPLETE, INVALID_FORMAT, INVALID_DIMENSIONS, * OUT_OF_BOUNDS. * * Dmabuf import errors in the server that are not obvious client * bugs are returned via the 'failed' event as non-fatal. This * allows attempting dmabuf sharing and falling back in the client * if it fails. * * This request can be sent only once in the object's lifetime, after * which the only legal request is destroy. This object should be * destroyed after issuing a 'create' request. Attempting to use this * object after issuing 'create' raises ALREADY_USED protocol error. * * It is not mandatory to issue 'create'. If a client wants to * cancel the buffer creation, it can just destroy this object. */ static inline void zwp_linux_buffer_params_v1_create( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, int32_t width, int32_t height, uint32_t format, uint32_t flags) { wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_buffer_params_v1, ZWP_LINUX_BUFFER_PARAMS_V1_CREATE, NULL, wl_proxy_get_version((struct wl_proxy*)zwp_linux_buffer_params_v1), 0, width, height, format, flags); } /** * @ingroup iface_zwp_linux_buffer_params_v1 * * This asks for immediate creation of a wl_buffer by importing the * added dmabufs. * * In case of import success, no event is sent from the server, and the * wl_buffer is ready to be used by the client. * * Upon import failure, either of the following may happen, as seen fit * by the implementation: * - the client is terminated with one of the following fatal protocol * errors: * - INCOMPLETE, INVALID_FORMAT, INVALID_DIMENSIONS, OUT_OF_BOUNDS, * in case of argument errors such as mismatch between the number * of planes and the format, bad format, non-positive width or * height, or bad offset or stride. * - INVALID_WL_BUFFER, in case the cause for failure is unknown or * platform specific. * - the server creates an invalid wl_buffer, marks it as failed and * sends a 'failed' event to the client. The result of using this * invalid wl_buffer as an argument in any request by the client is * defined by the compositor implementation. * * This takes the same arguments as a 'create' request, and obeys the * same restrictions. */ static inline struct wl_buffer* zwp_linux_buffer_params_v1_create_immed( struct zwp_linux_buffer_params_v1* zwp_linux_buffer_params_v1, int32_t width, int32_t height, uint32_t format, uint32_t flags) { struct wl_proxy* buffer_id; buffer_id = wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_buffer_params_v1, ZWP_LINUX_BUFFER_PARAMS_V1_CREATE_IMMED, &wl_buffer_interface, wl_proxy_get_version((struct wl_proxy*)zwp_linux_buffer_params_v1), 0, NULL, width, height, format, flags); return (struct wl_buffer*)buffer_id; } #ifndef ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM # define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM enum zwp_linux_dmabuf_feedback_v1_tranche_flags { /** * direct scan-out tranche */ ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT = 1, }; #endif /* ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM */ /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * @struct zwp_linux_dmabuf_feedback_v1_listener */ struct zwp_linux_dmabuf_feedback_v1_listener { /** * all feedback has been sent * * This event is sent after all parameters of a * wp_linux_dmabuf_feedback object have been sent. * * This allows changes to the wp_linux_dmabuf_feedback parameters * to be seen as atomic, even if they happen via multiple events. */ void (*done)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1); /** * format and modifier table * * This event provides a file descriptor which can be * memory-mapped to access the format and modifier table. * * The table contains a tightly packed array of consecutive format * + modifier pairs. Each pair is 16 bytes wide. It contains a * format as a 32-bit unsigned integer, followed by 4 bytes of * unused padding, and a modifier as a 64-bit unsigned integer. The * native endianness is used. * * The client must map the file descriptor in read-only private * mode. * * Compositors are not allowed to mutate the table file contents * once this event has been sent. Instead, compositors must create * a new, separate table file and re-send feedback parameters. * Compositors are allowed to store duplicate format + modifier * pairs in the table. * @param fd table file descriptor * @param size table size, in bytes */ void (*format_table)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, int32_t fd, uint32_t size); /** * preferred main device * * This event advertises the main device that the server prefers * to use when direct scan-out to the target device isn't possible. * The advertised main device may be different for each * wp_linux_dmabuf_feedback object, and may change over time. * * There is exactly one main device. The compositor must send at * least one preference tranche with tranche_target_device equal to * main_device. * * Clients need to create buffers that the main device can import * and read from, otherwise creating the dmabuf wl_buffer will fail * (see the wp_linux_buffer_params.create and create_immed requests * for details). The main device will also likely be kept active by * the compositor, so clients can use it instead of waking up * another device for power savings. * * In general the device is a DRM node. The DRM node type (primary * vs. render) is unspecified. Clients must not rely on the * compositor sending a particular node type. Clients cannot check * two devices for equality by comparing the dev_t value. * * If explicit modifiers are not supported and the client performs * buffer allocations on a different device than the main device, * then the client must force the buffer to have a linear layout. * @param device device dev_t value */ void (*main_device)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, struct wl_array* device); /** * a preference tranche has been sent * * This event splits tranche_target_device and tranche_formats * events in preference tranches. It is sent after a set of * tranche_target_device and tranche_formats events; it represents * the end of a tranche. The next tranche will have a lower * preference. */ void (*tranche_done)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1); /** * target device * * This event advertises the target device that the server * prefers to use for a buffer created given this tranche. The * advertised target device may be different for each preference * tranche, and may change over time. * * There is exactly one target device per tranche. * * The target device may be a scan-out device, for example if the * compositor prefers to directly scan-out a buffer created given * this tranche. The target device may be a rendering device, for * example if the compositor prefers to texture from said buffer. * * The client can use this hint to allocate the buffer in a way * that makes it accessible from the target device, ideally * directly. The buffer must still be accessible from the main * device, either through direct import or through a potentially * more expensive fallback path. If the buffer can't be directly * imported from the main device then clients must be prepared for * the compositor changing the tranche priority or making wl_buffer * creation fail (see the wp_linux_buffer_params.create and * create_immed requests for details). * * If the device is a DRM node, the DRM node type (primary vs. * render) is unspecified. Clients must not rely on the compositor * sending a particular node type. Clients cannot check two devices * for equality by comparing the dev_t value. * * This event is tied to a preference tranche, see the tranche_done * event. * @param device device dev_t value */ void (*tranche_target_device)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, struct wl_array* device); /** * supported buffer format modifier * * This event advertises the format + modifier combinations that * the compositor supports. * * It carries an array of indices, each referring to a format + * modifier pair in the last received format table (see the * format_table event). Each index is a 16-bit unsigned integer in * native endianness. * * For legacy support, DRM_FORMAT_MOD_INVALID is an allowed * modifier. It indicates that the server can support the format * with an implicit modifier. When a buffer has * DRM_FORMAT_MOD_INVALID as its modifier, it is as if no explicit * modifier is specified. The effective modifier will be derived * from the dmabuf. * * A compositor that sends valid modifiers and * DRM_FORMAT_MOD_INVALID for a given format supports both explicit * modifiers and implicit modifiers. * * Compositors must not send duplicate format + modifier pairs * within the same tranche or across two different tranches with * the same target device and flags. * * This event is tied to a preference tranche, see the tranche_done * event. * * For the definition of the format and modifier codes, see the * wp_linux_buffer_params.create request. * @param indices array of 16-bit indexes */ void (*tranche_formats)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, struct wl_array* indices); /** * tranche flags * * This event sets tranche-specific flags. * * The scanout flag is a hint that direct scan-out may be attempted * by the compositor on the target device if the client * appropriately allocates a buffer. How to allocate a buffer that * can be scanned out on the target device is * implementation-defined. * * This event is tied to a preference tranche, see the tranche_done * event. * @param flags tranche flags */ void (*tranche_flags)( void* data, struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, uint32_t flags); }; /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ static inline int zwp_linux_dmabuf_feedback_v1_add_listener( struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, const struct zwp_linux_dmabuf_feedback_v1_listener* listener, void* data) { return wl_proxy_add_listener((struct wl_proxy*)zwp_linux_dmabuf_feedback_v1, (void (**)(void))listener, data); } #define ZWP_LINUX_DMABUF_FEEDBACK_V1_DESTROY 0 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_DONE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_FORMAT_TABLE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_MAIN_DEVICE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_DONE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_TARGET_DEVICE_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FORMATS_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SINCE_VERSION 1 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_DESTROY_SINCE_VERSION 1 /** @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ static inline void zwp_linux_dmabuf_feedback_v1_set_user_data( struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1, void* user_data) { wl_proxy_set_user_data((struct wl_proxy*)zwp_linux_dmabuf_feedback_v1, user_data); } /** @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ static inline void* zwp_linux_dmabuf_feedback_v1_get_user_data( struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1) { return wl_proxy_get_user_data((struct wl_proxy*)zwp_linux_dmabuf_feedback_v1); } static inline uint32_t zwp_linux_dmabuf_feedback_v1_get_version( struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1) { return wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_feedback_v1); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * * Using this request a client can tell the server that it is not going to * use the wp_linux_dmabuf_feedback object anymore. */ static inline void zwp_linux_dmabuf_feedback_v1_destroy( struct zwp_linux_dmabuf_feedback_v1* zwp_linux_dmabuf_feedback_v1) { wl_proxy_marshal_flags( (struct wl_proxy*)zwp_linux_dmabuf_feedback_v1, ZWP_LINUX_DMABUF_FEEDBACK_V1_DESTROY, NULL, wl_proxy_get_version((struct wl_proxy*)zwp_linux_dmabuf_feedback_v1), WL_MARSHAL_FLAG_DESTROY); } #ifdef __cplusplus } #endif #endif