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/*
* Copyright (c) 2012 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#ifdef IN_LIBVA
# include "va/wayland/va_wayland.h"
#else
# include <va/va_wayland.h>
#endif
#include "va_display.h"
struct display {
struct wl_display *display;
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shell_surface *shell_surface;
struct wl_surface *surface;
unsigned int ref_count;
int event_fd;
};
static struct display *g_display;
static void
registry_handle_global(
void *data,
struct wl_registry *registry,
uint32_t id,
const char *interface,
uint32_t version
)
{
struct display * const d = data;
if (strcmp(interface, "wl_compositor") == 0)
d->compositor =
wl_registry_bind(registry, id, &wl_compositor_interface, 1);
else if (strcmp(interface, "wl_shell") == 0)
d->shell = wl_registry_bind(registry, id, &wl_shell_interface, 1);
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global,
NULL,
};
static VADisplay
va_open_display_wayland(void)
{
struct display *d;
if (g_display) {
d = g_display;
d->ref_count++;
}
else {
d = calloc(1, sizeof(*d));
if (!d)
return NULL;
d->event_fd = -1;
d->display = wl_display_connect(NULL);
if (!d->display) {
free(d);
return NULL;
}
wl_display_set_user_data(d->display, d);
d->registry = wl_display_get_registry(d->display);
wl_registry_add_listener(d->registry, ®istry_listener, d);
d->event_fd = wl_display_get_fd(d->display);
wl_display_dispatch(d->display);
d->ref_count = 1;
g_display = d;
}
return vaGetDisplayWl(d->display);
}
static void
va_close_display_wayland(VADisplay va_dpy)
{
struct display * const d = g_display;
if (!d || --d->ref_count > 0)
return;
if (d->surface) {
wl_surface_destroy(d->surface);
d->surface = NULL;
}
if (d->shell_surface) {
wl_shell_surface_destroy(d->shell_surface);
d->shell_surface = NULL;
}
if (d->shell) {
wl_shell_destroy(d->shell);
d->shell = NULL;
}
if (d->compositor) {
wl_compositor_destroy(d->compositor);
d->compositor = NULL;
}
if (d->display) {
wl_display_disconnect(d->display);
d->display = NULL;
}
free(g_display);
g_display = NULL;
}
static int
ensure_window(VADisplay va_dpy, unsigned int width, unsigned int height)
{
struct display * const d = g_display;
if (!d->surface) {
d->surface = wl_compositor_create_surface(d->compositor);
if (!d->surface)
return 0;
}
if (!d->shell_surface) {
d->shell_surface = wl_shell_get_shell_surface(d->shell, d->surface);
if (!d->shell_surface)
return 0;
wl_shell_surface_set_toplevel(d->shell_surface);
}
return 1;
}
static VAStatus
va_put_surface_wayland(
VADisplay va_dpy,
VASurfaceID surface,
const VARectangle *src_rect,
const VARectangle *dst_rect
)
{
struct display * const d = g_display;
VAStatus va_status;
struct wl_buffer *buffer;
if (!ensure_window(va_dpy, dst_rect->width, dst_rect->height))
return VA_STATUS_ERROR_ALLOCATION_FAILED;
va_status = vaGetSurfaceBufferWl(va_dpy, surface, VA_FRAME_PICTURE, &buffer);
if (va_status != VA_STATUS_SUCCESS)
return va_status;
wl_surface_attach(d->surface, buffer, 0, 0);
wl_surface_damage(
d->surface,
dst_rect->x, dst_rect->y, dst_rect->width, dst_rect->height
);
wl_surface_commit(d->surface);
wl_display_flush(d->display);
return VA_STATUS_SUCCESS;
}
const VADisplayHooks va_display_hooks_wayland = {
"wayland",
va_open_display_wayland,
va_close_display_wayland,
va_put_surface_wayland,
};
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