297 lines
9.8 KiB
C
297 lines
9.8 KiB
C
/*
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* Copyright © 2013 Keith Packard
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* Copyright © 2015 Boyan Ding
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef LOADER_DRI3_HEADER_H
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#define LOADER_DRI3_HEADER_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <xcb/xcb.h>
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#include <xcb/dri3.h>
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#include <xcb/present.h>
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#include <GL/gl.h>
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#include <GL/internal/dri_interface.h>
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#include <c11/threads.h>
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enum loader_dri3_buffer_type {
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loader_dri3_buffer_back = 0,
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loader_dri3_buffer_front = 1
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};
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struct loader_dri3_buffer {
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__DRIimage *image;
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uint32_t pixmap;
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/* default case: linear buffer allocated in render gpu vram.
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* p2p case: linear buffer allocated in display gpu vram and imported
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* to render gpu. p2p case is enabled when driver name matches
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* while creating screen in dri3_create_screen() function.
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*/
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__DRIimage *linear_buffer;
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/* Synchronization between the client and X server is done using an
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* xshmfence that is mapped into an X server SyncFence. This lets the
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* client check whether the X server is done using a buffer with a simple
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* xshmfence call, rather than going to read X events from the wire.
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*
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* However, we can only wait for one xshmfence to be triggered at a time,
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* so we need to know *which* buffer is going to be idle next. We do that
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* by waiting for a PresentIdleNotify event. When that event arrives, the
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* 'busy' flag gets cleared and the client knows that the fence has been
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* triggered, and that the wait call will not block.
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*/
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uint32_t sync_fence; /* XID of X SyncFence object */
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struct xshmfence *shm_fence; /* pointer to xshmfence object */
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bool busy; /* Set on swap, cleared on IdleNotify */
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bool own_pixmap; /* We allocated the pixmap ID, free on destroy */
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bool reallocate; /* Buffer should be reallocated and not reused */
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uint32_t num_planes;
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uint32_t size;
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int strides[4];
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int offsets[4];
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uint64_t modifier;
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uint32_t cpp;
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uint32_t flags;
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uint32_t width, height;
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uint64_t last_swap;
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};
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#define LOADER_DRI3_MAX_BACK 4
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#define LOADER_DRI3_BACK_ID(i) (i)
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#define LOADER_DRI3_FRONT_ID (LOADER_DRI3_MAX_BACK)
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static inline int
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loader_dri3_pixmap_buf_id(enum loader_dri3_buffer_type buffer_type)
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{
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if (buffer_type == loader_dri3_buffer_back)
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return LOADER_DRI3_BACK_ID(0);
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else
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return LOADER_DRI3_FRONT_ID;
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}
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struct loader_dri3_extensions {
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const __DRIcoreExtension *core;
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const __DRIimageDriverExtension *image_driver;
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const __DRI2flushExtension *flush;
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const __DRI2configQueryExtension *config;
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const __DRItexBufferExtension *tex_buffer;
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const __DRIimageExtension *image;
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};
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struct loader_dri3_drawable;
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struct loader_dri3_vtable {
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void (*set_drawable_size)(struct loader_dri3_drawable *, int, int);
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bool (*in_current_context)(struct loader_dri3_drawable *);
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__DRIcontext *(*get_dri_context)(struct loader_dri3_drawable *);
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__DRIscreen *(*get_dri_screen)(void);
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void (*flush_drawable)(struct loader_dri3_drawable *, unsigned);
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void (*show_fps)(struct loader_dri3_drawable *, uint64_t);
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};
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#define LOADER_DRI3_NUM_BUFFERS (1 + LOADER_DRI3_MAX_BACK)
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enum loader_dri3_drawable_type {
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LOADER_DRI3_DRAWABLE_UNKNOWN,
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LOADER_DRI3_DRAWABLE_WINDOW,
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LOADER_DRI3_DRAWABLE_PIXMAP,
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LOADER_DRI3_DRAWABLE_PBUFFER,
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};
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struct loader_dri3_drawable {
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xcb_connection_t *conn;
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xcb_screen_t *screen;
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__DRIdrawable *dri_drawable;
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xcb_drawable_t drawable;
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xcb_window_t window;
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xcb_xfixes_region_t region;
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int width;
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int height;
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int depth;
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uint8_t have_back;
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uint8_t have_fake_front;
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enum loader_dri3_drawable_type type;
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/* Information about the GPU owning the buffer */
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__DRIscreen *dri_screen;
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bool is_different_gpu;
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bool multiplanes_available;
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bool prefer_back_buffer_reuse;
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/* DRI screen created for display GPU in case of prime */
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__DRIscreen *dri_screen_display_gpu;
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/* SBC numbers are tracked by using the serial numbers
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* in the present request and complete events
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*/
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uint64_t send_sbc;
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uint64_t recv_sbc;
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/* Last received UST/MSC values for pixmap present complete */
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uint64_t ust, msc;
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/* Last received UST/MSC values from present notify msc event */
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uint64_t notify_ust, notify_msc;
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struct loader_dri3_buffer *buffers[LOADER_DRI3_NUM_BUFFERS];
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int cur_back;
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int cur_num_back;
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int max_num_back;
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int cur_blit_source;
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uint32_t *stamp;
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xcb_present_event_t eid;
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xcb_gcontext_t gc;
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xcb_special_event_t *special_event;
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bool first_init;
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bool adaptive_sync;
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bool adaptive_sync_active;
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int swap_interval;
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struct loader_dri3_extensions *ext;
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const struct loader_dri3_vtable *vtable;
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unsigned int swap_method;
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unsigned int back_format;
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xcb_present_complete_mode_t last_present_mode;
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bool is_protected_content;
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/* Currently protects the following fields:
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* event_cnd, has_event_waiter,
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* recv_sbc, ust, msc, recv_msc_serial,
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* notify_ust, notify_msc
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*/
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mtx_t mtx;
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cnd_t event_cnd;
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unsigned last_special_event_sequence;
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bool has_event_waiter;
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};
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void
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loader_dri3_set_swap_interval(struct loader_dri3_drawable *draw,
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int interval);
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void
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loader_dri3_drawable_fini(struct loader_dri3_drawable *draw);
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int
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loader_dri3_drawable_init(xcb_connection_t *conn,
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xcb_drawable_t drawable,
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enum loader_dri3_drawable_type type,
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__DRIscreen *dri_screen,
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bool is_different_gpu,
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bool is_multiplanes_available,
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bool prefer_back_buffer_reuse,
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const __DRIconfig *dri_config,
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struct loader_dri3_extensions *ext,
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const struct loader_dri3_vtable *vtable,
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struct loader_dri3_drawable*);
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bool loader_dri3_wait_for_msc(struct loader_dri3_drawable *draw,
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int64_t target_msc,
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int64_t divisor, int64_t remainder,
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int64_t *ust, int64_t *msc, int64_t *sbc);
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int64_t
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loader_dri3_swap_buffers_msc(struct loader_dri3_drawable *draw,
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int64_t target_msc, int64_t divisor,
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int64_t remainder, unsigned flush_flags,
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const int *rects, int n_rects,
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bool force_copy);
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int
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loader_dri3_wait_for_sbc(struct loader_dri3_drawable *draw,
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int64_t target_sbc, int64_t *ust,
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int64_t *msc, int64_t *sbc);
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int loader_dri3_query_buffer_age(struct loader_dri3_drawable *draw);
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void
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loader_dri3_flush(struct loader_dri3_drawable *draw,
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unsigned flags,
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enum __DRI2throttleReason throttle_reason);
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void
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loader_dri3_copy_sub_buffer(struct loader_dri3_drawable *draw,
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int x, int y,
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int width, int height,
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bool flush);
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void
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loader_dri3_copy_drawable(struct loader_dri3_drawable *draw,
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xcb_drawable_t dest,
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xcb_drawable_t src);
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void
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loader_dri3_wait_x(struct loader_dri3_drawable *draw);
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void
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loader_dri3_wait_gl(struct loader_dri3_drawable *draw);
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int loader_dri3_open(xcb_connection_t *conn,
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xcb_window_t root,
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uint32_t provider);
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__DRIimage *
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loader_dri3_create_image(xcb_connection_t *c,
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xcb_dri3_buffer_from_pixmap_reply_t *bp_reply,
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unsigned int format,
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__DRIscreen *dri_screen,
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const __DRIimageExtension *image,
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void *loaderPrivate);
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#ifdef HAVE_DRI3_MODIFIERS
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__DRIimage *
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loader_dri3_create_image_from_buffers(xcb_connection_t *c,
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xcb_dri3_buffers_from_pixmap_reply_t *bp_reply,
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unsigned int format,
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__DRIscreen *dri_screen,
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const __DRIimageExtension *image,
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void *loaderPrivate);
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#endif
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int
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loader_dri3_get_buffers(__DRIdrawable *driDrawable,
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unsigned int format,
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uint32_t *stamp,
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void *loaderPrivate,
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uint32_t buffer_mask,
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struct __DRIimageList *buffers);
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void
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loader_dri3_update_drawable_geometry(struct loader_dri3_drawable *draw);
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void
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loader_dri3_swapbuffer_barrier(struct loader_dri3_drawable *draw);
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void
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loader_dri3_close_screen(__DRIscreen *dri_screen);
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#endif
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