static void
vl_dri2_flush_frontbuffer(struct pipe_screen *screen,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private, struct pipe_box *sub_box)
{
struct vl_dri_screen *scrn = (struct vl_dri_screen *)context_private;
uint32_t msc_hi, msc_lo;
assert(screen);
assert(resource);
assert(context_private);
free(vl_dri2_get_flush_reply(scrn));
msc_hi = scrn->next_msc >> 32;
msc_lo = scrn->next_msc & 0xFFFFFFFF;
scrn->swap_cookie = xcb_dri2_swap_buffers_unchecked(scrn->conn, scrn->drawable,
msc_hi, msc_lo, 0, 0, 0, 0);
scrn->wait_cookie = xcb_dri2_wait_sbc_unchecked(scrn->conn, scrn->drawable, 0, 0);
scrn->buffers_cookie = xcb_dri2_get_buffers_unchecked(scrn->conn, scrn->drawable,
1, 1, attachments);
scrn->flushed = true;
scrn->current_buffer = !scrn->current_buffer;
}
static void
vl_dri2_destroy_drawable(struct vl_dri_screen *scrn)
{
xcb_void_cookie_t destroy_cookie;
if (scrn->drawable) {
free(vl_dri2_get_flush_reply(scrn));
destroy_cookie = xcb_dri2_destroy_drawable_checked(scrn->conn, scrn->drawable);
/* ignore any error here, since the drawable can be destroyed long ago */
free(xcb_request_check(scrn->conn, destroy_cookie));
}
}
vl_dri2_screen_texture_from_drawable(struct vl_screen *vscreen, void *drawable)
{
struct vl_dri_screen *scrn = (struct vl_dri_screen *)vscreen;
struct winsys_handle dri2_handle;
struct pipe_resource template, *tex;
xcb_dri2_get_buffers_reply_t *reply;
xcb_dri2_dri2_buffer_t *buffers, *back_left;
unsigned i;
assert(scrn);
vl_dri2_set_drawable(scrn, (Drawable)drawable);
reply = vl_dri2_get_flush_reply(scrn);
if (!reply) {
xcb_dri2_get_buffers_cookie_t cookie;
cookie = xcb_dri2_get_buffers_unchecked(scrn->conn, (Drawable)drawable,
1, 1, attachments);
reply = xcb_dri2_get_buffers_reply(scrn->conn, cookie, NULL);
}
if (!reply)
return NULL;
buffers = xcb_dri2_get_buffers_buffers(reply);
if (!buffers) {
free(reply);
return NULL;
}
static struct pipe_resource *
vl_dri2_screen_texture_from_drawable(struct vl_screen *vscreen, void *drawable)
{
struct vl_dri_screen *scrn = (struct vl_dri_screen *)vscreen;
struct winsys_handle dri2_handle;
struct pipe_resource templ, *tex;
xcb_dri2_get_buffers_reply_t *reply;
xcb_dri2_dri2_buffer_t *buffers, *back_left;
unsigned depth = ((xcb_screen_t *)(vscreen->xcb_screen))->root_depth;
unsigned i;
assert(scrn);
vl_dri2_set_drawable(scrn, (Drawable)drawable);
reply = vl_dri2_get_flush_reply(scrn);
if (!reply) {
xcb_dri2_get_buffers_cookie_t cookie;
cookie = xcb_dri2_get_buffers_unchecked(scrn->conn, (Drawable)drawable,
1, 1, attachments);
reply = xcb_dri2_get_buffers_reply(scrn->conn, cookie, NULL);
}
if (!reply)
return NULL;
buffers = xcb_dri2_get_buffers_buffers(reply);
if (!buffers) {
free(reply);
return NULL;
}
for (i = 0; i < reply->count; ++i) {
if (buffers[i].attachment == XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT) {
back_left = &buffers[i];
break;
}
}
if (i == reply->count) {
free(reply);
return NULL;
}
if (reply->width != scrn->width || reply->height != scrn->height) {
vl_compositor_reset_dirty_area(&scrn->dirty_areas[0]);
vl_compositor_reset_dirty_area(&scrn->dirty_areas[1]);
scrn->width = reply->width;
scrn->height = reply->height;
} else if (back_left->name != scrn->buffer_names[scrn->current_buffer]) {
vl_compositor_reset_dirty_area(&scrn->dirty_areas[scrn->current_buffer]);
scrn->buffer_names[scrn->current_buffer] = back_left->name;
}
memset(&dri2_handle, 0, sizeof(dri2_handle));
dri2_handle.type = WINSYS_HANDLE_TYPE_SHARED;
dri2_handle.handle = back_left->name;
dri2_handle.stride = back_left->pitch;
memset(&templ, 0, sizeof(templ));
templ.target = PIPE_TEXTURE_2D;
templ.format = vl_dri2_format_for_depth(vscreen, depth);
templ.last_level = 0;
templ.width0 = reply->width;
templ.height0 = reply->height;
templ.depth0 = 1;
templ.array_size = 1;
templ.usage = PIPE_USAGE_DEFAULT;
templ.bind = PIPE_BIND_RENDER_TARGET;
templ.flags = 0;
tex = scrn->base.pscreen->resource_from_handle(scrn->base.pscreen, &templ,
&dri2_handle,
PIPE_HANDLE_USAGE_READ_WRITE);
free(reply);
return tex;
}
