multi_compositor Struct Reference
A single compositor for feeding the layers from one session/app into the multi-client-capable system compositor. More...
#include <multi/comp_multi_private.h>
Inheritance diagram for multi_compositor:
Collaboration diagram for multi_compositor:
Data Fields | |
| struct xrt_compositor_native | base |
| struct xrt_session_info | xsi |
| struct xrt_session_event_sink * | xses |
| Where events for this compositor should go. More... | |
| struct multi_system_compositor * | msc |
| Owning system compositor. More... | |
| struct os_precise_sleeper | frame_sleeper |
| Used to implement wait frame, only used for in process. More... | |
| struct os_precise_sleeper | scheduled_sleeper |
| Used when waiting for the scheduled frame to complete. More... | |
| struct { | |
| bool visible | |
| bool focused | |
| int64_t z_order | |
| bool session_active | |
| } | state |
| struct { | |
| struct xrt_compositor_fence * xcf | |
| Fence to wait for. More... | |
| struct xrt_compositor_semaphore * xcsem | |
| Timeline semaphore to wait for. More... | |
| uint64_t value | |
| Timeline semaphore value to wait for. More... | |
| int64_t frame_id | |
| Frame id of frame being waited on. More... | |
| struct os_thread_helper oth | |
| The wait thread itself. More... | |
| bool alive | |
| Have we gotten to the loop? More... | |
| bool waiting | |
| Is the thread waiting, if so the client should block. More... | |
| bool blocked | |
| Is the client thread blocked? More... | |
| } | wait_thread |
| struct os_mutex | slot_lock |
| Lock for all of the slots. More... | |
| uint64_t | slot_next_frame_display |
| The next which the next frames to be picked up will be displayed. More... | |
| struct multi_layer_slot | progress |
| Currently being transferred or waited on. More... | |
| struct multi_layer_slot | scheduled |
| Scheduled frames for a future timepoint. More... | |
| struct multi_layer_slot | delivered |
| Fully ready to be used. More... | |
| struct u_pacing_app * | upa |
 Data Fields inherited from xrt_compositor_native | |
| struct xrt_compositor | base |
| Base. More... | |
| Data Fields inherited from xrt_compositor | |
| struct xrt_compositor_info | info |
| Capabilities and recommended values information. More... | |
| xrt_result_t(* | get_swapchain_create_properties )(struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_swapchain_create_properties *xsccp) |
| For a given xrt_swapchain_create_info struct returns a filled out xrt_swapchain_create_properties. More... | |
| xrt_result_t(* | create_passthrough )(struct xrt_compositor *xc, const struct xrt_passthrough_create_info *info) |
| Create a passthrough. More... | |
| xrt_result_t(* | create_passthrough_layer )(struct xrt_compositor *xc, const struct xrt_passthrough_layer_create_info *info) |
| Create a passthrough layer. More... | |
| xrt_result_t(* | destroy_passthrough )(struct xrt_compositor *xc) |
| Destroy a passthrough. More... | |
| xrt_result_t(* | set_performance_level )(struct xrt_compositor *xc, enum xrt_perf_domain domain, enum xrt_perf_set_level level) |
| Set CPU/GPU performance level. More... | |
| void(* | destroy )(struct xrt_compositor *xc) |
| Teardown the compositor. More... | |
| xrt_result_t(* | create_swapchain )(struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_swapchain **out_xsc) |
| Create a swapchain with a set of images. More... | |
| xrt_result_t(* | import_swapchain )(struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_image_native *native_images, uint32_t image_count, struct xrt_swapchain **out_xsc) |
| Create a swapchain from a set of native images. More... | |
| xrt_result_t(* | import_fence )(struct xrt_compositor *xc, xrt_graphics_sync_handle_t handle, struct xrt_compositor_fence **out_xcf) |
| Create a compositor fence from a native sync handle. More... | |
| xrt_result_t(* | create_semaphore )(struct xrt_compositor *xc, xrt_graphics_sync_handle_t *out_handle, struct xrt_compositor_semaphore **out_xcsem) |
| Create a compositor semaphore, also returns a native handle. More... | |
| xrt_result_t(* | begin_session )(struct xrt_compositor *xc, const struct xrt_begin_session_info *info) |
| See xrBeginSession. More... | |
| xrt_result_t(* | end_session )(struct xrt_compositor *xc) |
| See xrEndSession, unlike the OpenXR one the state tracker is responsible to call discard frame before calling this function. More... | |
| xrt_result_t(* | predict_frame )(struct xrt_compositor *xc, int64_t *out_frame_id, uint64_t *out_wake_time_ns, uint64_t *out_predicted_gpu_time_ns, uint64_t *out_predicted_display_time_ns, uint64_t *out_predicted_display_period_ns) |
| This function and mark_frame function calls are a alternative to wait_frame. More... | |
| xrt_result_t(* | mark_frame )(struct xrt_compositor *xc, int64_t frame_id, enum xrt_compositor_frame_point point, uint64_t when_ns) |
| This function and predict_frame function calls are a alternative to wait_frame. More... | |
| xrt_result_t(* | wait_frame )(struct xrt_compositor *xc, int64_t *out_frame_id, uint64_t *out_predicted_display_time, uint64_t *out_predicted_display_period) |
| See xrWaitFrame. More... | |
| xrt_result_t(* | begin_frame )(struct xrt_compositor *xc, int64_t frame_id) |
| See xrBeginFrame. More... | |
| xrt_result_t(* | discard_frame )(struct xrt_compositor *xc, int64_t frame_id) |
| Explicitly discard a frame. More... | |
| xrt_result_t(* | layer_begin )(struct xrt_compositor *xc, const struct xrt_layer_frame_data *data) |
| Begins layer submission. More... | |
| xrt_result_t(* | layer_projection )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc[XRT_MAX_VIEWS], const struct xrt_layer_data *data) |
| Adds a projection layer for submissions. More... | |
| xrt_result_t(* | layer_projection_depth )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc[XRT_MAX_VIEWS], struct xrt_swapchain *d_xsc[XRT_MAX_VIEWS], const struct xrt_layer_data *data) |
| Adds a projection layer for submission, has depth information. More... | |
| xrt_result_t(* | layer_quad )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a quad layer for submission, the center of the quad is specified by the pose and extends outwards from it. More... | |
| xrt_result_t(* | layer_cube )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a cube layer for submission. More... | |
| xrt_result_t(* | layer_cylinder )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a cylinder layer for submission. More... | |
| xrt_result_t(* | layer_equirect1 )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a equirect1 layer for submission. More... | |
| xrt_result_t(* | layer_equirect2 )(struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a equirect2 layer for submission. More... | |
| xrt_result_t(* | layer_passthrough )(struct xrt_compositor *xc, struct xrt_device *xdev, const struct xrt_layer_data *data) |
| Adds a passthrough layer for submission. More... | |
| xrt_result_t(* | layer_commit )(struct xrt_compositor *xc, xrt_graphics_sync_handle_t sync_handle) |
| Commits all of the submitted layers. More... | |
| xrt_result_t(* | layer_commit_with_semaphore )(struct xrt_compositor *xc, struct xrt_compositor_semaphore *xcsem, uint64_t value) |
| Commits all of the submitted layers, with a semaphore. More... | |
| xrt_result_t(* | get_display_refresh_rate )(struct xrt_compositor *xc, float *out_display_refresh_rate_hz) |
| Get the current display refresh rate. More... | |
| xrt_result_t(* | request_display_refresh_rate )(struct xrt_compositor *xc, float display_refresh_rate_hz) |
| Request system to change the display refresh rate to the requested value. More... | |
| xrt_result_t(* | set_thread_hint )(struct xrt_compositor *xc, enum xrt_thread_hint hint, uint32_t thread_id) |
| Set thread attributes according to thread type. More... | |
Additional Inherited Members | |
| Public Member Functions inherited from xrt_compositor_native | |
| static xrt_result_t | xrt_comp_native_create_swapchain (struct xrt_compositor_native *xcn, const struct xrt_swapchain_create_info *info, struct xrt_swapchain_native **out_xscn) |
| Create a native swapchain with a set of images. More... | |
| static void | xrt_comp_native_destroy (struct xrt_compositor_native **xcn_ptr) |
| Teardown the compositor. More... | |
| struct xrt_compositor_d3d11 * | xrt_gfx_d3d11_provider_create (struct xrt_compositor_native *xcn, ID3D11Device *device) |
| Create a D3D11 compositor client. More... | |
| struct xrt_compositor_d3d12 * | xrt_gfx_d3d12_provider_create (struct xrt_compositor_native *xcn, ID3D12Device *device, ID3D12CommandQueue *queue) |
| Create a D3D12 compositor client. More... | |
| xrt_result_t | xrt_gfx_provider_create_gl_egl (struct xrt_compositor_native *xcn, EGLDisplay display, EGLConfig config, EGLContext context, PFNEGLGETPROCADDRESSPROC get_gl_procaddr, bool renderdoc_enabled, struct xrt_compositor_gl **out_xcgl) |
| Create an OpenGL(ES) compositor client using EGL. More... | |
| struct xrt_compositor_vk * | xrt_gfx_vk_provider_create (struct xrt_compositor_native *xcn, VkInstance instance, PFN_vkGetInstanceProcAddr get_instance_proc_addr, VkPhysicalDevice physical_device, VkDevice device, bool external_fence_fd_enabled, bool external_semaphore_fd_enabled, bool timeline_semaphore_enabled, bool debug_utils_enabled, bool renderdoc_enabled, uint32_t queue_family_index, uint32_t queue_index) |
| Create a Vulkan compositor client. More... | |
| struct xrt_compositor_gl * | xrt_gfx_provider_create_gl_win32 (struct xrt_compositor_native *xcn, void *hDC, void *hGLRC) |
| Create an OpenGL compositor client using Win32. More... | |
| struct xrt_compositor_gl * | xrt_gfx_provider_create_gl_xlib (struct xrt_compositor_native *xcn, Display *xDisplay, uint32_t visualid, GLXFBConfig glxFBConfig, GLXDrawable glxDrawable, GLXContext glxContext) |
| Create an OpenGL compositor client using xlib. More... | |
| Public Member Functions inherited from xrt_compositor | |
| static xrt_result_t | xrt_comp_get_swapchain_create_properties (struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_swapchain_create_properties *xsccp) |
| For a given xrt_swapchain_create_info struct returns a filled out xrt_swapchain_create_properties. More... | |
| static xrt_result_t | xrt_comp_create_passthrough (struct xrt_compositor *xc, const struct xrt_passthrough_create_info *info) |
| Create a passthrough. More... | |
| static xrt_result_t | xrt_comp_create_passthrough_layer (struct xrt_compositor *xc, const struct xrt_passthrough_layer_create_info *info) |
| Create a passthrough layer. More... | |
| static xrt_result_t | xrt_comp_destroy_passthrough (struct xrt_compositor *xc) |
| Destroy a passthrough. More... | |
| static xrt_result_t | xrt_comp_get_display_refresh_rate (struct xrt_compositor *xc, float *out_display_refresh_rate_hz) |
| Get the current display refresh rate. More... | |
| static xrt_result_t | xrt_comp_request_display_refresh_rate (struct xrt_compositor *xc, float display_refresh_rate_hz) |
| Request system to change the display refresh rate to the requested value. More... | |
| static xrt_result_t | xrt_comp_set_performance_level (struct xrt_compositor *xc, enum xrt_perf_domain domain, enum xrt_perf_set_level level) |
| Set CPU/GPU performance level. More... | |
| static void | xrt_comp_destroy (struct xrt_compositor **xc_ptr) |
| Teardown the compositor. More... | |
| static xrt_result_t | xrt_comp_create_swapchain (struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_swapchain **out_xsc) |
| Create a swapchain with a set of images. More... | |
| static xrt_result_t | xrt_comp_import_swapchain (struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_image_native *native_images, uint32_t image_count, struct xrt_swapchain **out_xsc) |
| Create a swapchain from a set of native images. More... | |
| static xrt_result_t | xrt_comp_import_fence (struct xrt_compositor *xc, xrt_graphics_sync_handle_t handle, struct xrt_compositor_fence **out_xcf) |
| Create a compositor fence from a native sync handle. More... | |
| static xrt_result_t | xrt_comp_create_semaphore (struct xrt_compositor *xc, xrt_graphics_sync_handle_t *out_handle, struct xrt_compositor_semaphore **out_xcsem) |
| Create a compositor semaphore, also returns a native handle. More... | |
| static xrt_result_t | xrt_comp_begin_session (struct xrt_compositor *xc, const struct xrt_begin_session_info *info) |
| See xrBeginSession. More... | |
| static xrt_result_t | xrt_comp_end_session (struct xrt_compositor *xc) |
| See xrEndSession, unlike the OpenXR one the state tracker is responsible to call discard frame before calling this function. More... | |
| static xrt_result_t | xrt_comp_predict_frame (struct xrt_compositor *xc, int64_t *out_frame_id, uint64_t *out_wake_time_ns, uint64_t *out_predicted_gpu_time_ns, uint64_t *out_predicted_display_time_ns, uint64_t *out_predicted_display_period_ns) |
| This function and mark_frame function calls are a alternative to wait_frame. More... | |
| static xrt_result_t | xrt_comp_mark_frame (struct xrt_compositor *xc, int64_t frame_id, enum xrt_compositor_frame_point point, uint64_t when_ns) |
| This function and predict_frame function calls are a alternative to wait_frame. More... | |
| static xrt_result_t | xrt_comp_wait_frame (struct xrt_compositor *xc, int64_t *out_frame_id, uint64_t *out_predicted_display_time, uint64_t *out_predicted_display_period) |
| See xrWaitFrame. More... | |
| static xrt_result_t | xrt_comp_begin_frame (struct xrt_compositor *xc, int64_t frame_id) |
| See xrBeginFrame. More... | |
| static xrt_result_t | xrt_comp_discard_frame (struct xrt_compositor *xc, int64_t frame_id) |
| Explicitly discard a frame. More... | |
| static xrt_result_t | xrt_comp_layer_begin (struct xrt_compositor *xc, const struct xrt_layer_frame_data *data) |
| Begins layer submission. More... | |
| static xrt_result_t | xrt_comp_layer_projection (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc[XRT_MAX_VIEWS], const struct xrt_layer_data *data) |
| Adds a projection layer for submissions. More... | |
| static xrt_result_t | xrt_comp_layer_projection_depth (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc[XRT_MAX_VIEWS], struct xrt_swapchain *d_xsc[XRT_MAX_VIEWS], const struct xrt_layer_data *data) |
| Adds a projection layer for submission, has depth information. More... | |
| static xrt_result_t | xrt_comp_layer_quad (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a quad layer for submission, the center of the quad is specified by the pose and extends outwards from it. More... | |
| static xrt_result_t | xrt_comp_layer_cube (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a cube layer for submission. More... | |
| static xrt_result_t | xrt_comp_layer_cylinder (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a cylinder layer for submission. More... | |
| static xrt_result_t | xrt_comp_layer_equirect1 (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a equirect1 layer for submission. More... | |
| static xrt_result_t | xrt_comp_layer_equirect2 (struct xrt_compositor *xc, struct xrt_device *xdev, struct xrt_swapchain *xsc, const struct xrt_layer_data *data) |
| Adds a equirect2 layer for submission. More... | |
| static xrt_result_t | xrt_comp_layer_passthrough (struct xrt_compositor *xc, struct xrt_device *xdev, const struct xrt_layer_data *data) |
| Adds a passthrough layer for submission. More... | |
| static xrt_result_t | xrt_comp_layer_commit (struct xrt_compositor *xc, xrt_graphics_sync_handle_t sync_handle) |
| Commits all of the submitted layers. More... | |
| static xrt_result_t | xrt_comp_layer_commit_with_semaphore (struct xrt_compositor *xc, struct xrt_compositor_semaphore *xcsem, uint64_t value) |
| Commits all of the submitted layers, with a semaphore. More... | |
Detailed Description
A single compositor for feeding the layers from one session/app into the multi-client-capable system compositor.
An instance (usually an IPC server instance) might have several of these at once, feeding layers to a single multi-client-capable system compositor.
Field Documentation
◆ alive
| bool multi_compositor::alive |
Have we gotten to the loop?
◆ blocked
| bool multi_compositor::blocked |
Is the client thread blocked?
Set to true by the client thread, cleared by the wait thread to release the client thread.
◆ delivered
| struct multi_layer_slot multi_compositor::delivered |
Fully ready to be used.
Not protected by the slot lock as it is only touched by the main render loop thread.
◆ frame_id
| int64_t multi_compositor::frame_id |
Frame id of frame being waited on.
◆ frame_sleeper
| struct os_precise_sleeper multi_compositor::frame_sleeper |
Used to implement wait frame, only used for in process.
◆ msc
| struct multi_system_compositor* multi_compositor::msc |
Owning system compositor.
Referenced by system_compositor_set_state(), and system_compositor_set_z_order().
◆ oth
| struct os_thread_helper multi_compositor::oth |
The wait thread itself.
◆ progress
| struct multi_layer_slot multi_compositor::progress |
Currently being transferred or waited on.
Not protected by the slot lock as it is only touched by the client thread.
◆ scheduled
| struct multi_layer_slot multi_compositor::scheduled |
Scheduled frames for a future timepoint.
◆ scheduled_sleeper
| struct os_precise_sleeper multi_compositor::scheduled_sleeper |
Used when waiting for the scheduled frame to complete.
◆ slot_lock
| struct os_mutex multi_compositor::slot_lock |
Lock for all of the slots.
◆ slot_next_frame_display
| uint64_t multi_compositor::slot_next_frame_display |
The next which the next frames to be picked up will be displayed.
◆ value
| uint64_t multi_compositor::value |
Timeline semaphore value to wait for.
◆ waiting
| bool multi_compositor::waiting |
Is the thread waiting, if so the client should block.
◆ xcf
| struct xrt_compositor_fence* multi_compositor::xcf |
Fence to wait for.
◆ xcsem
| struct xrt_compositor_semaphore* multi_compositor::xcsem |
Timeline semaphore to wait for.
◆ xses
| struct xrt_session_event_sink* multi_compositor::xses |
Where events for this compositor should go.
The documentation for this struct was generated from the following file:
- compositor/multi/comp_multi_private.h
