static void
vl_dri3_screen_destroy(struct vl_screen *vscreen)
{
struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)vscreen;
int i;
assert(vscreen);
dri3_flush_present_events(scrn);
if (scrn->front_buffer) {
dri3_free_front_buffer(scrn, scrn->front_buffer);
scrn->front_buffer = NULL;
return;
}
for (i = 0; i < BACK_BUFFER_NUM; ++i) {
if (scrn->back_buffers[i]) {
dri3_free_back_buffer(scrn, scrn->back_buffers[i]);
scrn->back_buffers[i] = NULL;
}
}
if (scrn->special_event)
xcb_unregister_for_special_event(scrn->conn, scrn->special_event);
scrn->base.pscreen->destroy(scrn->base.pscreen);
pipe_loader_release(&scrn->base.dev, 1);
FREE(scrn);
return;
}
static struct vl_dri3_buffer *
dri3_get_back_buffer(struct vl_dri3_screen *scrn)
{
struct vl_dri3_buffer *buffer;
struct pipe_resource *texture = NULL;
assert(scrn);
scrn->cur_back = dri3_find_back(scrn);
if (scrn->cur_back < 0)
return NULL;
buffer = scrn->back_buffers[scrn->cur_back];
if (!buffer || buffer->width != scrn->width ||
buffer->height != scrn->height) {
struct vl_dri3_buffer *new_buffer;
new_buffer = dri3_alloc_back_buffer(scrn);
if (!new_buffer)
return NULL;
if (buffer)
dri3_free_back_buffer(scrn, buffer);
vl_compositor_reset_dirty_area(&scrn->dirty_areas[scrn->cur_back]);
buffer = new_buffer;
scrn->back_buffers[scrn->cur_back] = buffer;
}
pipe_resource_reference(&texture, buffer->texture);
xcb_flush(scrn->conn);
xshmfence_await(buffer->shm_fence);
return buffer;
}
static void
vl_dri3_screen_destroy(struct vl_screen *vscreen)
{
struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)vscreen;
int i;
assert(vscreen);
dri3_flush_present_events(scrn);
if (scrn->front_buffer) {
dri3_free_front_buffer(scrn, scrn->front_buffer);
scrn->front_buffer = NULL;
}
for (i = 0; i < BACK_BUFFER_NUM; ++i) {
if (scrn->back_buffers[i]) {
dri3_free_back_buffer(scrn, scrn->back_buffers[i]);
scrn->back_buffers[i] = NULL;
}
}
if (scrn->special_event) {
xcb_void_cookie_t cookie =
xcb_present_select_input_checked(scrn->conn, scrn->eid,
scrn->drawable,
XCB_PRESENT_EVENT_MASK_NO_EVENT);
xcb_discard_reply(scrn->conn, cookie.sequence);
xcb_unregister_for_special_event(scrn->conn, scrn->special_event);
}
scrn->pipe->destroy(scrn->pipe);
scrn->base.pscreen->destroy(scrn->base.pscreen);
pipe_loader_release(&scrn->base.dev, 1);
FREE(scrn);
return;
}
static struct vl_dri3_buffer *
dri3_get_back_buffer(struct vl_dri3_screen *scrn)
{
struct vl_dri3_buffer *buffer;
struct pipe_resource *texture = NULL;
bool allocate_new_buffer = false;
int b, id;
assert(scrn);
scrn->cur_back = dri3_find_back(scrn);
if (scrn->cur_back < 0)
return NULL;
buffer = scrn->back_buffers[scrn->cur_back];
if (scrn->output_texture) {
if (!buffer || buffer->width < scrn->width ||
buffer->height < scrn->height)
allocate_new_buffer = true;
else if (scrn->is_different_gpu)
/* In case of different gpu we can reuse the linear
* texture so we only need to set the external
* texture for copying
*/
buffer->texture = scrn->output_texture;
else {
/* In case of a single gpu we search if the texture is
* already present as buffer if not we get the
* handle and pixmap for the texture that is set
*/
for (b = 0; b < BACK_BUFFER_NUM; b++) {
id = (b + scrn->cur_back) % BACK_BUFFER_NUM;
buffer = scrn->back_buffers[id];
if (buffer && !buffer->busy &&
buffer->texture == scrn->output_texture) {
scrn->cur_back = id;
break;
}
}
if (b == BACK_BUFFER_NUM) {
allocate_new_buffer = true;
scrn->cur_back = scrn->next_back;
scrn->next_back = (scrn->next_back + 1) % BACK_BUFFER_NUM;
buffer = scrn->back_buffers[scrn->cur_back];
}
}
} else {
if (!buffer || buffer->width != scrn->width ||
buffer->height != scrn->height)
allocate_new_buffer = true;
}
if (allocate_new_buffer) {
struct vl_dri3_buffer *new_buffer;
new_buffer = dri3_alloc_back_buffer(scrn);
if (!new_buffer)
return NULL;
if (buffer)
dri3_free_back_buffer(scrn, buffer);
if (!scrn->output_texture)
vl_compositor_reset_dirty_area(&scrn->dirty_areas[scrn->cur_back]);
buffer = new_buffer;
scrn->back_buffers[scrn->cur_back] = buffer;
}
pipe_resource_reference(&texture, buffer->texture);
xcb_flush(scrn->conn);
xshmfence_await(buffer->shm_fence);
return buffer;
}