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;
}
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;
}
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;
}
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;
}
}
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;
}