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IABSD.fr/xenocara/lib/mesa/src/loader/loader_dri3_helper.h
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- lib/mesa/src/loader/loader_dri3_helper.h
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/* * Copyright © 2013 Keith Packard * Copyright © 2015 Boyan Ding * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that copyright * notice and this permission notice appear in supporting documentation, and * that the name of the copyright holders not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. The copyright holders make no representations * about the suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ #ifndef LOADER_DRI3_HEADER_H #define LOADER_DRI3_HEADER_H #include <stdbool.h> #include <stdint.h> #include <xcb/xcb.h> #include <xcb/dri3.h> #include <xcb/present.h> #include <GL/gl.h> #include <GL/internal/dri_interface.h> #include <c11/threads.h> enum loader_dri3_buffer_type { loader_dri3_buffer_back = 0, loader_dri3_buffer_front = 1 }; struct loader_dri3_buffer { __DRIimage *image; __DRIimage *linear_buffer; uint32_t pixmap; /* Synchronization between the client and X server is done using an * xshmfence that is mapped into an X server SyncFence. This lets the * client check whether the X server is done using a buffer with a simple * xshmfence call, rather than going to read X events from the wire. * * However, we can only wait for one xshmfence to be triggered at a time, * so we need to know *which* buffer is going to be idle next. We do that * by waiting for a PresentIdleNotify event. When that event arrives, the * 'busy' flag gets cleared and the client knows that the fence has been * triggered, and that the wait call will not block. */ uint32_t sync_fence; /* XID of X SyncFence object */ struct xshmfence *shm_fence; /* pointer to xshmfence object */ bool busy; /* Set on swap, cleared on IdleNotify */ bool own_pixmap; /* We allocated the pixmap ID, free on destroy */ bool reallocate; /* Buffer should be reallocated and not reused */ uint32_t num_planes; uint32_t size; int strides[4]; int offsets[4]; uint64_t modifier; uint32_t cpp; uint32_t flags; uint32_t width, height; uint64_t last_swap; }; #define LOADER_DRI3_MAX_BACK 4 #define LOADER_DRI3_BACK_ID(i) (i) #define LOADER_DRI3_FRONT_ID (LOADER_DRI3_MAX_BACK) static inline int loader_dri3_pixmap_buf_id(enum loader_dri3_buffer_type buffer_type) { if (buffer_type == loader_dri3_buffer_back) return LOADER_DRI3_BACK_ID(0); else return LOADER_DRI3_FRONT_ID; } struct loader_dri3_extensions { const __DRIcoreExtension *core; const __DRIimageDriverExtension *image_driver; const __DRI2flushExtension *flush; const __DRI2configQueryExtension *config; const __DRItexBufferExtension *tex_buffer; const __DRIimageExtension *image; }; struct loader_dri3_drawable; struct loader_dri3_vtable { void (*set_drawable_size)(struct loader_dri3_drawable *, int, int); bool (*in_current_context)(struct loader_dri3_drawable *); __DRIcontext *(*get_dri_context)(struct loader_dri3_drawable *); __DRIscreen *(*get_dri_screen)(void); void (*flush_drawable)(struct loader_dri3_drawable *, unsigned); void (*show_fps)(struct loader_dri3_drawable *, uint64_t); }; #define LOADER_DRI3_NUM_BUFFERS (1 + LOADER_DRI3_MAX_BACK) struct loader_dri3_drawable { xcb_connection_t *conn; xcb_screen_t *screen; __DRIdrawable *dri_drawable; xcb_drawable_t drawable; xcb_window_t window; int width; int height; int depth; uint8_t have_back; uint8_t have_fake_front; uint8_t is_pixmap; /* Information about the GPU owning the buffer */ __DRIscreen *dri_screen; bool is_different_gpu; bool multiplanes_available; /* Present extension capabilities */ uint32_t present_capabilities; /* SBC numbers are tracked by using the serial numbers * in the present request and complete events */ uint64_t send_sbc; uint64_t recv_sbc; /* Last received UST/MSC values for pixmap present complete */ uint64_t ust, msc; /* Last received UST/MSC values from present notify msc event */ uint64_t notify_ust, notify_msc; struct loader_dri3_buffer *buffers[LOADER_DRI3_NUM_BUFFERS]; int cur_back; int num_back; int cur_blit_source; uint32_t *stamp; xcb_present_event_t eid; xcb_gcontext_t gc; xcb_special_event_t *special_event; bool first_init; int swap_interval; struct loader_dri3_extensions *ext; const struct loader_dri3_vtable *vtable; unsigned int swap_method; unsigned int back_format; xcb_present_complete_mode_t last_present_mode; /* Currently protects the following fields: * event_cnd, has_event_waiter, * recv_sbc, ust, msc, recv_msc_serial, * notify_ust, notify_msc */ mtx_t mtx; cnd_t event_cnd; bool has_event_waiter; }; void loader_dri3_set_swap_interval(struct loader_dri3_drawable *draw, int interval); void loader_dri3_drawable_fini(struct loader_dri3_drawable *draw); int loader_dri3_drawable_init(xcb_connection_t *conn, xcb_drawable_t drawable, __DRIscreen *dri_screen, bool is_different_gpu, bool is_multiplanes_available, const __DRIconfig *dri_config, struct loader_dri3_extensions *ext, const struct loader_dri3_vtable *vtable, struct loader_dri3_drawable*); bool loader_dri3_wait_for_msc(struct loader_dri3_drawable *draw, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t *ust, int64_t *msc, int64_t *sbc); int64_t loader_dri3_swap_buffers_msc(struct loader_dri3_drawable *draw, int64_t target_msc, int64_t divisor, int64_t remainder, unsigned flush_flags, bool force_copy); int loader_dri3_wait_for_sbc(struct loader_dri3_drawable *draw, int64_t target_sbc, int64_t *ust, int64_t *msc, int64_t *sbc); int loader_dri3_query_buffer_age(struct loader_dri3_drawable *draw); void loader_dri3_flush(struct loader_dri3_drawable *draw, unsigned flags, enum __DRI2throttleReason throttle_reason); void loader_dri3_copy_sub_buffer(struct loader_dri3_drawable *draw, int x, int y, int width, int height, bool flush); void loader_dri3_copy_drawable(struct loader_dri3_drawable *draw, xcb_drawable_t dest, xcb_drawable_t src); void loader_dri3_wait_x(struct loader_dri3_drawable *draw); void loader_dri3_wait_gl(struct loader_dri3_drawable *draw); int loader_dri3_open(xcb_connection_t *conn, xcb_window_t root, uint32_t provider); __DRIimage * loader_dri3_create_image(xcb_connection_t *c, xcb_dri3_buffer_from_pixmap_reply_t *bp_reply, unsigned int format, __DRIscreen *dri_screen, const __DRIimageExtension *image, void *loaderPrivate); #ifdef HAVE_DRI3_MODIFIERS __DRIimage * loader_dri3_create_image_from_buffers(xcb_connection_t *c, xcb_dri3_buffers_from_pixmap_reply_t *bp_reply, unsigned int format, __DRIscreen *dri_screen, const __DRIimageExtension *image, void *loaderPrivate); #endif int loader_dri3_get_buffers(__DRIdrawable *driDrawable, unsigned int format, uint32_t *stamp, void *loaderPrivate, uint32_t buffer_mask, struct __DRIimageList *buffers); void loader_dri3_update_drawable_geometry(struct loader_dri3_drawable *draw); void loader_dri3_swapbuffer_barrier(struct loader_dri3_drawable *draw); void loader_dri3_close_screen(__DRIscreen *dri_screen); #endif