gstreamer/gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
2013-05-07 17:51:27 +02:00

416 lines
12 KiB
C

/*
* gstvaapiwindow_wayland.c - VA/Wayland window abstraction
*
* Copyright (C) 2012-2013 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:gstvaapiwindow_wayland
* @short_description: VA/Wayland window abstraction
*/
#include "sysdeps.h"
#include <string.h>
#include "gstvaapicompat.h"
#include "gstvaapiwindow_wayland.h"
#include "gstvaapiwindow_priv.h"
#include "gstvaapidisplay_wayland.h"
#include "gstvaapidisplay_wayland_priv.h"
#include "gstvaapiutils.h"
#define DEBUG 1
#include "gstvaapidebug.h"
#define GST_VAAPI_WINDOW_WAYLAND_CAST(obj) \
((GstVaapiWindowWayland *)(obj))
#define GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(obj) \
(&GST_VAAPI_WINDOW_WAYLAND_CAST(obj)->priv)
typedef struct _GstVaapiWindowWaylandPrivate GstVaapiWindowWaylandPrivate;
typedef struct _GstVaapiWindowWaylandClass GstVaapiWindowWaylandClass;
struct _GstVaapiWindowWaylandPrivate {
struct wl_shell_surface *shell_surface;
struct wl_surface *surface;
struct wl_buffer *buffer;
struct wl_region *opaque_region;
struct wl_event_queue *event_queue;
guint redraw_pending : 1;
guint is_shown : 1;
guint fullscreen_on_show : 1;
};
/**
* GstVaapiWindowWayland:
*
* A Wayland window abstraction.
*/
struct _GstVaapiWindowWayland {
/*< private >*/
GstVaapiWindow parent_instance;
GstVaapiWindowWaylandPrivate priv;
};
/**
* GstVaapiWindowWaylandClass:
*
* An Wayland #Window wrapper class.
*/
struct _GstVaapiWindowWaylandClass {
/*< private >*/
GstVaapiWindowClass parent_class;
};
static gboolean
gst_vaapi_window_wayland_show(GstVaapiWindow *window)
{
GST_WARNING("unimplemented GstVaapiWindowWayland::show()");
return TRUE;
}
static gboolean
gst_vaapi_window_wayland_hide(GstVaapiWindow *window)
{
GST_WARNING("unimplemented GstVaapiWindowWayland::hide()");
return TRUE;
}
static gboolean
gst_vaapi_window_wayland_sync(GstVaapiWindow *window)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
if (priv->redraw_pending) {
struct wl_display * const wl_display =
GST_VAAPI_OBJECT_WL_DISPLAY(window);
do {
if (wl_display_dispatch_queue(wl_display, priv->event_queue) < 0)
return FALSE;
} while (priv->redraw_pending);
}
return TRUE;
}
static void
handle_ping(void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
handle_configure(void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
}
static void
handle_popup_done(void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
static gboolean
gst_vaapi_window_wayland_set_fullscreen(GstVaapiWindow *window, gboolean fullscreen)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
if (!priv->is_shown) {
priv->fullscreen_on_show = fullscreen;
return TRUE;
}
if (!fullscreen)
wl_shell_surface_set_toplevel(priv->shell_surface);
else {
wl_shell_surface_set_fullscreen(
priv->shell_surface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE,
0,
NULL
);
}
return TRUE;
}
static gboolean
gst_vaapi_window_wayland_create(
GstVaapiWindow *window,
guint *width,
guint *height
)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
GstVaapiDisplayWaylandPrivate * const priv_display =
GST_VAAPI_DISPLAY_WAYLAND_GET_PRIVATE(GST_VAAPI_OBJECT_DISPLAY(window));
GST_DEBUG("create window, size %ux%u", *width, *height);
g_return_val_if_fail(priv_display->compositor != NULL, FALSE);
g_return_val_if_fail(priv_display->shell != NULL, FALSE);
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
priv->event_queue = wl_display_create_queue(priv_display->wl_display);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!priv->event_queue)
return FALSE;
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
priv->surface = wl_compositor_create_surface(priv_display->compositor);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!priv->surface)
return FALSE;
wl_proxy_set_queue((struct wl_proxy *)priv->surface, priv->event_queue);
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
priv->shell_surface =
wl_shell_get_shell_surface(priv_display->shell, priv->surface);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!priv->shell_surface)
return FALSE;
wl_proxy_set_queue((struct wl_proxy *)priv->shell_surface,
priv->event_queue);
wl_shell_surface_add_listener(priv->shell_surface,
&shell_surface_listener, priv);
wl_shell_surface_set_toplevel(priv->shell_surface);
if (priv->fullscreen_on_show)
gst_vaapi_window_wayland_set_fullscreen(window, TRUE);
priv->redraw_pending = FALSE;
priv->is_shown = TRUE;
return TRUE;
}
static void
gst_vaapi_window_wayland_destroy(GstVaapiWindow * window)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
if (priv->shell_surface) {
wl_shell_surface_destroy(priv->shell_surface);
priv->shell_surface = NULL;
}
if (priv->surface) {
wl_surface_destroy(priv->surface);
priv->surface = NULL;
}
if (priv->buffer) {
wl_buffer_destroy(priv->buffer);
priv->buffer = NULL;
}
if (priv->event_queue) {
wl_event_queue_destroy(priv->event_queue);
priv->event_queue = NULL;
}
}
static gboolean
gst_vaapi_window_wayland_resize(
GstVaapiWindow * window,
guint width,
guint height
)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
GstVaapiDisplayWaylandPrivate * const priv_display =
GST_VAAPI_DISPLAY_WAYLAND_GET_PRIVATE(GST_VAAPI_OBJECT_DISPLAY(window));
GST_DEBUG("resize window, new size %ux%u", width, height);
if (priv->opaque_region)
wl_region_destroy(priv->opaque_region);
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
priv->opaque_region = wl_compositor_create_region(priv_display->compositor);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
wl_region_add(priv->opaque_region, 0, 0, width, height);
return TRUE;
}
static void
frame_redraw_callback(void *data, struct wl_callback *callback, uint32_t time)
{
GstVaapiWindowWaylandPrivate * const priv = data;
wl_buffer_destroy(priv->buffer);
priv->buffer = NULL;
wl_callback_destroy(callback);
priv->redraw_pending = FALSE;
}
static const struct wl_callback_listener frame_callback_listener = {
frame_redraw_callback
};
static gboolean
gst_vaapi_window_wayland_render(
GstVaapiWindow *window,
GstVaapiSurface *surface,
const GstVaapiRectangle *src_rect,
const GstVaapiRectangle *dst_rect,
guint flags
)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(window);
struct wl_display * const wl_display = GST_VAAPI_OBJECT_WL_DISPLAY(window);
struct wl_buffer *buffer;
struct wl_callback *callback;
guint width, height, va_flags;
VASurfaceID surface_id;
VAStatus status;
/* XXX: use VPP to support unusual source and destination rectangles */
gst_vaapi_surface_get_size(surface, &width, &height);
if (src_rect->x != 0 ||
src_rect->y != 0 ||
src_rect->width != width ||
src_rect->height != height) {
GST_ERROR("unsupported source rectangle for rendering");
return FALSE;
}
if (0 && (dst_rect->width != width || dst_rect->height != height)) {
GST_ERROR("unsupported target rectangle for rendering");
return FALSE;
}
surface_id = GST_VAAPI_OBJECT_ID(surface);
if (surface_id == VA_INVALID_ID)
return FALSE;
/* Wait for the previous frame to complete redraw */
if (!gst_vaapi_window_wayland_sync(window))
return FALSE;
/* XXX: use VA/VPP for other filters */
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
va_flags = from_GstVaapiSurfaceRenderFlags(flags);
status = vaGetSurfaceBufferWl(
GST_VAAPI_DISPLAY_VADISPLAY(display),
surface_id,
va_flags & (VA_TOP_FIELD|VA_BOTTOM_FIELD),
&buffer
);
if (status == VA_STATUS_ERROR_FLAG_NOT_SUPPORTED) {
/* XXX: de-interlacing flags not supported, try with VPP? */
status = vaGetSurfaceBufferWl(
GST_VAAPI_DISPLAY_VADISPLAY(display),
surface_id,
VA_FRAME_PICTURE,
&buffer
);
}
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!vaapi_check_status(status, "vaGetSurfaceBufferWl()"))
return FALSE;
/* XXX: attach to the specified target rectangle */
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
wl_surface_attach(priv->surface, buffer, 0, 0);
wl_surface_damage(priv->surface, 0, 0, width, height);
if (priv->opaque_region) {
wl_surface_set_opaque_region(priv->surface, priv->opaque_region);
wl_region_destroy(priv->opaque_region);
priv->opaque_region = NULL;
}
priv->redraw_pending = TRUE;
priv->buffer = buffer;
callback = wl_surface_frame(priv->surface);
wl_callback_add_listener(callback, &frame_callback_listener, priv);
wl_surface_commit(priv->surface);
wl_display_flush(wl_display);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
return TRUE;
}
static void
gst_vaapi_window_wayland_class_init(GstVaapiWindowWaylandClass * klass)
{
GstVaapiObjectClass * const object_class = GST_VAAPI_OBJECT_CLASS(klass);
GstVaapiWindowClass * const window_class = GST_VAAPI_WINDOW_CLASS(klass);
object_class->finalize = (GstVaapiObjectFinalizeFunc)
gst_vaapi_window_wayland_destroy;
window_class->create = gst_vaapi_window_wayland_create;
window_class->show = gst_vaapi_window_wayland_show;
window_class->hide = gst_vaapi_window_wayland_hide;
window_class->render = gst_vaapi_window_wayland_render;
window_class->resize = gst_vaapi_window_wayland_resize;
window_class->set_fullscreen = gst_vaapi_window_wayland_set_fullscreen;
}
#define gst_vaapi_window_wayland_finalize \
gst_vaapi_window_wayland_destroy
GST_VAAPI_OBJECT_DEFINE_CLASS_WITH_CODE(
GstVaapiWindowWayland,
gst_vaapi_window_wayland,
gst_vaapi_window_wayland_class_init(&g_class))
/**
* gst_vaapi_window_wayland_new:
* @display: a #GstVaapiDisplay
* @width: the requested window width, in pixels
* @height: the requested windo height, in pixels
*
* Creates a window with the specified @width and @height. The window
* will be attached to the @display and remains invisible to the user
* until gst_vaapi_window_show() is called.
*
* Return value: the newly allocated #GstVaapiWindow object
*/
GstVaapiWindow *
gst_vaapi_window_wayland_new(
GstVaapiDisplay *display,
guint width,
guint height
)
{
GST_DEBUG("new window, size %ux%u", width, height);
return gst_vaapi_window_new(GST_VAAPI_WINDOW_CLASS(
gst_vaapi_window_wayland_class()), display, width, height);
}