C++ (Cpp) dri3_wait_present_events Examples

Example #1

File: vl_winsys_dri3.c Project: BNieuwenhuizen/mesa

static uint64_t
vl_dri3_screen_get_timestamp(struct vl_screen *vscreen, void *drawable)
{
   struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)vscreen;

   assert(scrn);

   if (!dri3_set_drawable(scrn, (Drawable)drawable))
      return 0;

   if (!scrn->last_ust) {
      xcb_present_notify_msc(scrn->conn,
                             scrn->drawable,
                             ++scrn->send_msc_serial,
                             0, 0, 0);
      xcb_flush(scrn->conn);

      while (scrn->special_event &&
             scrn->send_msc_serial > scrn->recv_msc_serial) {
         if (!dri3_wait_present_events(scrn))
            return 0;
      }
   }

   return scrn->last_ust;
}

Example #2

File: vl_winsys_dri3.c Project: BNieuwenhuizen/mesa

static struct pipe_resource *
vl_dri3_screen_texture_from_drawable(struct vl_screen *vscreen, void *drawable)
{
   struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)vscreen;
   struct vl_dri3_buffer *buffer;

   assert(scrn);

   if (!dri3_set_drawable(scrn, (Drawable)drawable))
      return NULL;

   if (scrn->flushed) {
      while (scrn->special_event && scrn->recv_sbc < scrn->send_sbc)
         if (!dri3_wait_present_events(scrn))
            return NULL;
   }
   scrn->flushed = false;

   buffer = (scrn->is_pixmap) ?
            dri3_get_front_buffer(scrn) :
            dri3_get_back_buffer(scrn);
   if (!buffer)
      return NULL;

   return buffer->texture;
}

Example #3

File: vl_winsys_dri3.c Project: ChristophHaag/mesa-mesa

static void
vl_dri3_flush_frontbuffer(struct pipe_screen *screen,
                          struct pipe_resource *resource,
                          unsigned level, unsigned layer,
                          void *context_private, struct pipe_box *sub_box)
{
   struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)context_private;
   uint32_t options = XCB_PRESENT_OPTION_NONE;
   struct vl_dri3_buffer *back;
   struct pipe_box src_box;
   xcb_xfixes_region_t region;
   xcb_rectangle_t rectangle;

   back = scrn->back_buffers[scrn->cur_back];
   if (!back)
       return;

   while (scrn->special_event && scrn->recv_sbc < scrn->send_sbc)
      if (!dri3_wait_present_events(scrn))
         return;

   rectangle.x = 0;
   rectangle.y = 0;
   rectangle.width = (scrn->output_texture) ? scrn->clip_width : scrn->width;
   rectangle.height = (scrn->output_texture) ? scrn->clip_height : scrn->height;

   region = xcb_generate_id(scrn->conn);
   xcb_xfixes_create_region(scrn->conn, region, 2, &rectangle);

   if (scrn->is_different_gpu) {
      u_box_origin_2d(back->width, back->height, &src_box);
      scrn->pipe->resource_copy_region(scrn->pipe,
                                       back->linear_texture,
                                       0, 0, 0, 0,
                                       back->texture,
                                       0, &src_box);

      scrn->pipe->flush(scrn->pipe, NULL, 0);
   }
   xshmfence_reset(back->shm_fence);
   back->busy = true;

   xcb_present_pixmap(scrn->conn,
                      scrn->drawable,
                      back->pixmap,
                      (uint32_t)(++scrn->send_sbc),
                      0, region, 0, 0,
                      None, None,
                      back->sync_fence,
                      options,
                      scrn->next_msc,
                      0, 0, 0, NULL);

   xcb_flush(scrn->conn);

   return;
}

Example #4

File: vl_winsys_dri3.c Project: BNieuwenhuizen/mesa

static int
dri3_find_back(struct vl_dri3_screen *scrn)
{
   int b;

   for (;;) {
      for (b = 0; b < BACK_BUFFER_NUM; b++) {
         int id = (b + scrn->cur_back) % BACK_BUFFER_NUM;
         struct vl_dri3_buffer *buffer = scrn->back_buffers[id];
         if (!buffer || !buffer->busy)
            return id;
      }
      xcb_flush(scrn->conn);
      if (!dri3_wait_present_events(scrn))
         return -1;
   }
}

Example #5

File: vl_winsys_dri3.c Project: BNieuwenhuizen/mesa

static void
vl_dri3_flush_frontbuffer(struct pipe_screen *screen,
                          struct pipe_resource *resource,
                          unsigned level, unsigned layer,
                          void *context_private, struct pipe_box *sub_box)
{
   struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)context_private;
   uint32_t options = XCB_PRESENT_OPTION_NONE;
   struct vl_dri3_buffer *back;

   back = scrn->back_buffers[scrn->cur_back];
   if (!back)
       return;

   if (scrn->flushed) {
      while (scrn->special_event && scrn->recv_sbc < scrn->send_sbc)
         if (!dri3_wait_present_events(scrn))
            return;
   }

   xshmfence_reset(back->shm_fence);
   back->busy = true;

   xcb_present_pixmap(scrn->conn,
                      scrn->drawable,
                      back->pixmap,
                      (uint32_t)(++scrn->send_sbc),
                      0, 0, 0, 0,
                      None, None,
                      back->sync_fence,
                      options,
                      scrn->next_msc,
                      0, 0, 0, NULL);

   xcb_flush(scrn->conn);

   scrn->flushed = true;

   return;
}