/* Generated by wayland-scanner 1.26.0 */ #ifndef LINUX_DMABUF_V1_SERVER_PROTOCOL_H #define LINUX_DMABUF_V1_SERVER_PROTOCOL_H #include #include #include "wayland-server.h" #ifdef __cplusplus extern "C" { #endif struct wl_client; struct wl_resource; /** * @page page_linux_dmabuf_v1 The linux_dmabuf_v1 protocol * @section page_ifaces_linux_dmabuf_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_v1 Copyright *
 *
 * Copyright © 2014, 2015 Collabora, Ltd.
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*/ 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 * * This interface offers ways to create generic dmabuf-based wl_buffers. * * For more information about dmabuf, see: * https://www.kernel.org/doc/html/next/userspace-api/dma-buf-alloc-exchange.html * * 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_buffer_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. * @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 * * This interface offers ways to create generic dmabuf-based wl_buffers. * * For more information about dmabuf, see: * https://www.kernel.org/doc/html/next/userspace-api/dma-buf-alloc-exchange.html * * 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_buffer_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. */ 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 only be set once; subsequent * calls with a plane index which has already been set will result in a * plane_set error being generated. * @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 only be set once; subsequent * calls with a plane index which has already been set will result in a * plane_set error being generated. */ 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 (unless * the client bound version 6 or above), 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. * * With version 6 and above, the compositor must always advertise at least * one tranche with the sampling flag set. * * The compositor sends a format_table event at least once for each dmabuf * parameters feedback object, before any tranche events. Unless the format * table contents change later, the compositor is free not to send another * format_table event for the same dmabuf parameters feedback object. * @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 (unless * the client bound version 6 or above), 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. * * With version 6 and above, the compositor must always advertise at least * one tranche with the sampling flag set. * * The compositor sends a format_table event at least once for each dmabuf * parameters feedback object, before any tranche events. Unless the format * table contents change later, the compositor is free not to send another * format_table event for the same dmabuf parameters feedback object. */ extern const struct wl_interface zwp_linux_dmabuf_feedback_v1_interface; #endif /** * @ingroup iface_zwp_linux_dmabuf_v1 * @struct zwp_linux_dmabuf_v1_interface */ struct zwp_linux_dmabuf_v1_interface { /** * unbind the factory * * Objects created through this interface, especially wl_buffers, * will remain valid. */ void (*destroy)(struct wl_client *client, struct wl_resource *resource); /** * create a temporary object for buffer parameters * * 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. * @param params_id id for the newly created zwp_linux_buffer_params_v1 */ void (*create_params)(struct wl_client *client, struct wl_resource *resource, uint32_t params_id); /** * get default feedback * * This request creates a new zwp_linux_dmabuf_feedback_v1 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). * @since 4 */ void (*get_default_feedback)(struct wl_client *client, struct wl_resource *resource, uint32_t id); /** * get feedback for a surface * * This request creates a new zwp_linux_dmabuf_feedback_v1 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 * zwp_linux_dmabuf_feedback_v1 object, the feedback object becomes * inert. * @since 4 */ void (*get_surface_feedback)(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *surface); }; #define ZWP_LINUX_DMABUF_V1_FORMAT 0 #define ZWP_LINUX_DMABUF_V1_MODIFIER 1 /** * @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 * Sends an format event to the client owning the resource. * @param resource_ The client's resource * @param format DRM_FORMAT code */ static inline void zwp_linux_dmabuf_v1_send_format(struct wl_resource *resource_, uint32_t format) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_V1_FORMAT, format); } /** * @ingroup iface_zwp_linux_dmabuf_v1 * Sends an modifier event to the client owning the resource. * @param resource_ The client's resource * @param format DRM_FORMAT code * @param modifier_hi high 32 bits of layout modifier * @param modifier_lo low 32 bits of layout modifier */ static inline void zwp_linux_dmabuf_v1_send_modifier(struct wl_resource *resource_, uint32_t format, uint32_t modifier_hi, uint32_t modifier_lo) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_V1_MODIFIER, format, modifier_hi, modifier_lo); } #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM #define ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM enum zwp_linux_buffer_params_v1_error { /** * the zwp_linux_buffer_params_v1 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, /** * an array with mismatching size for a dev_t was used */ ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_DEV_T_SIZE = 8, }; #endif /* ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM */ #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM_IS_VALID #define ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM_IS_VALID /** * @ingroup iface_zwp_linux_buffer_params_v1 * Validate a zwp_linux_buffer_params_v1 error value. * * @return true on success, false on error. * @ref zwp_linux_buffer_params_v1_error */ static inline bool zwp_linux_buffer_params_v1_error_is_valid(uint32_t value, uint32_t version) { switch (value) { case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ALREADY_USED: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_PLANE_IDX: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_PLANE_SET: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INCOMPLETE: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_FORMAT: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_DIMENSIONS: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_OUT_OF_BOUNDS: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_WL_BUFFER: return version >= 1; case ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_INVALID_DEV_T_SIZE: return version >= 1; default: return false; } } #endif /* ZWP_LINUX_BUFFER_PARAMS_V1_ERROR_ENUM_IS_VALID */ #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 */ #ifndef ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM_IS_VALID #define ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM_IS_VALID /** * @ingroup iface_zwp_linux_buffer_params_v1 * Validate a zwp_linux_buffer_params_v1 flags value. * * @return true on success, false on error. * @ref zwp_linux_buffer_params_v1_flags */ static inline bool zwp_linux_buffer_params_v1_flags_is_valid(uint32_t value, uint32_t version) { uint32_t valid = 0; if (version >= 1) valid |= ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_Y_INVERT; if (version >= 1) valid |= ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_INTERLACED; if (version >= 1) valid |= ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_BOTTOM_FIRST; return (value & ~valid) == 0; } #endif /* ZWP_LINUX_BUFFER_PARAMS_V1_FLAGS_ENUM_IS_VALID */ /** * @ingroup iface_zwp_linux_buffer_params_v1 * @struct zwp_linux_buffer_params_v1_interface */ struct zwp_linux_buffer_params_v1_interface { /** * delete this object, used or not * * Cleans up the temporary data sent to the server for * dmabuf-based wl_buffer creation. */ void (*destroy)(struct wl_client *client, struct wl_resource *resource); /** * add a dmabuf to the temporary set * * 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. * @param fd dmabuf fd * @param plane_idx plane index * @param offset offset in bytes * @param stride stride in bytes * @param modifier_hi high 32 bits of layout modifier * @param modifier_lo low 32 bits of layout modifier */ void (*add)(struct wl_client *client, struct wl_resource *resource, int32_t fd, uint32_t plane_idx, uint32_t offset, uint32_t stride, uint32_t modifier_hi, uint32_t modifier_lo); /** * create a wl_buffer from the given dmabufs * * 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 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 the * 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. * @param width base plane width in pixels * @param height base plane height in pixels * @param format DRM_FORMAT code * @param flags see enum flags */ void (*create)(struct wl_client *client, struct wl_resource *resource, int32_t width, int32_t height, uint32_t format, uint32_t flags); /** * immediately create a wl_buffer from the given dmabufs * * 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. * @param buffer_id id for the newly created wl_buffer * @param width base plane width in pixels * @param height base plane height in pixels * @param format DRM_FORMAT code * @param flags see enum flags * @since 2 */ void (*create_immed)(struct wl_client *client, struct wl_resource *resource, uint32_t buffer_id, int32_t width, int32_t height, uint32_t format, uint32_t flags); /** * set the target device of the wl_buffer * * Set the device the compositor should import the dmabufs to for * sampling in the next create or create_immed request. * * To avoid race conditions when the compositor removes a device * from the tranches, it is not a protocol error if the device * hasn't been advertised by the compositor in a tranche with the * sampling flag, but the import is likely to fail in that case. * * If the client doesn't know a suitable target device, it * shouldn't set one, and the compositor should attempt import on * all devices it supports. * * If the array is too small to contain a dev_t or larger than * required, the invalid_dev_t_size error will be emitted. * @param device device dev_t value * @since 6 */ void (*set_sampling_device)(struct wl_client *client, struct wl_resource *resource, struct wl_array *device); }; #define ZWP_LINUX_BUFFER_PARAMS_V1_CREATED 0 #define ZWP_LINUX_BUFFER_PARAMS_V1_FAILED 1 /** * @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 */ #define ZWP_LINUX_BUFFER_PARAMS_V1_SET_SAMPLING_DEVICE_SINCE_VERSION 6 /** * @ingroup iface_zwp_linux_buffer_params_v1 * Sends an created event to the client owning the resource. * @param resource_ The client's resource * @param buffer id for the the newly created wl_buffer */ static inline void zwp_linux_buffer_params_v1_send_created(struct wl_resource *resource_, struct wl_resource *buffer) { wl_resource_post_event(resource_, ZWP_LINUX_BUFFER_PARAMS_V1_CREATED, buffer); } /** * @ingroup iface_zwp_linux_buffer_params_v1 * Sends an failed event to the client owning the resource. * @param resource_ The client's resource */ static inline void zwp_linux_buffer_params_v1_send_failed(struct wl_resource *resource_) { wl_resource_post_event(resource_, ZWP_LINUX_BUFFER_PARAMS_V1_FAILED); } #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 * * 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. * @since 4 */ ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT = 1, /** * sampling tranche * * The sampling flag describes that the compositor is able to * efficiently sample from buffers imported to the target device if * the client appropriately allocates a buffer. How to allocate a * buffer that can be efficiently sampled on the target device is * implementation defined. * @since 6 */ ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SAMPLING = 2, }; /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT_SINCE_VERSION 4 /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 */ #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SAMPLING_SINCE_VERSION 6 #endif /* ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM */ #ifndef ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM_IS_VALID #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM_IS_VALID /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Validate a zwp_linux_dmabuf_feedback_v1 tranche_flags value. * * @return true on success, false on error. * @ref zwp_linux_dmabuf_feedback_v1_tranche_flags */ static inline bool zwp_linux_dmabuf_feedback_v1_tranche_flags_is_valid(uint32_t value, uint32_t version) { uint32_t valid = 0; if (version >= 4) valid |= ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SCANOUT; if (version >= 6) valid |= ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_SAMPLING; return (value & ~valid) == 0; } #endif /* ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS_ENUM_IS_VALID */ /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * @struct zwp_linux_dmabuf_feedback_v1_interface */ struct zwp_linux_dmabuf_feedback_v1_interface { /** * destroy the feedback object * * Using this request a client can tell the server that it is not * going to use the zwp_linux_dmabuf_feedback_v1 object anymore. */ void (*destroy)(struct wl_client *client, struct wl_resource *resource); }; #define ZWP_LINUX_DMABUF_FEEDBACK_V1_DONE 0 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_FORMAT_TABLE 1 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_MAIN_DEVICE 2 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_DONE 3 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_TARGET_DEVICE 4 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FORMATS 5 #define ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS 6 /** * @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 * Sends an done event to the client owning the resource. * @param resource_ The client's resource */ static inline void zwp_linux_dmabuf_feedback_v1_send_done(struct wl_resource *resource_) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_DONE); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an format_table event to the client owning the resource. * @param resource_ The client's resource * @param fd table file descriptor * @param size table size, in bytes */ static inline void zwp_linux_dmabuf_feedback_v1_send_format_table(struct wl_resource *resource_, int32_t fd, uint32_t size) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_FORMAT_TABLE, fd, size); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an main_device event to the client owning the resource. * @param resource_ The client's resource * @param device device dev_t value */ static inline void zwp_linux_dmabuf_feedback_v1_send_main_device(struct wl_resource *resource_, struct wl_array *device) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_MAIN_DEVICE, device); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an tranche_done event to the client owning the resource. * @param resource_ The client's resource */ static inline void zwp_linux_dmabuf_feedback_v1_send_tranche_done(struct wl_resource *resource_) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_DONE); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an tranche_target_device event to the client owning the resource. * @param resource_ The client's resource * @param device device dev_t value */ static inline void zwp_linux_dmabuf_feedback_v1_send_tranche_target_device(struct wl_resource *resource_, struct wl_array *device) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_TARGET_DEVICE, device); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an tranche_formats event to the client owning the resource. * @param resource_ The client's resource * @param indices array of 16-bit indexes */ static inline void zwp_linux_dmabuf_feedback_v1_send_tranche_formats(struct wl_resource *resource_, struct wl_array *indices) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FORMATS, indices); } /** * @ingroup iface_zwp_linux_dmabuf_feedback_v1 * Sends an tranche_flags event to the client owning the resource. * @param resource_ The client's resource * @param flags tranche flags */ static inline void zwp_linux_dmabuf_feedback_v1_send_tranche_flags(struct wl_resource *resource_, uint32_t flags) { wl_resource_post_event(resource_, ZWP_LINUX_DMABUF_FEEDBACK_V1_TRANCHE_FLAGS, flags); } #ifdef __cplusplus } #endif #endif