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gstreamer/sys/vdpau/gstvdp/gstvdpdevice.c
Tim-Philipp Müller 9e1b75fda3 Fix FSF address 
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-04 00:09:59 +00:00

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/*
* GStreamer
* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/* FIXME 0.11: suppress warnings for deprecated API such as GStaticRecMutex
* with newer GLib versions (>= 2.31.0) */
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include "gstvdpdevice.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_device_debug);
#define GST_CAT_DEFAULT gst_vdp_device_debug
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_vdp_device_debug, "vdpdevice", 0, "VDPAU device object");
enum
{
PROP_0,
PROP_DISPLAY
};
G_DEFINE_TYPE_WITH_CODE (GstVdpDevice, gst_vdp_device, G_TYPE_OBJECT,
DEBUG_INIT ());
static gboolean
gst_vdp_device_open (GstVdpDevice * device, GError ** error)
{
gint screen;
VdpStatus status;
gint i;
typedef struct
{
gint id;
void *func;
} VdpFunction;
VdpFunction vdp_function[] = {
{VDP_FUNC_ID_DEVICE_DESTROY, &device->vdp_device_destroy},
{VDP_FUNC_ID_VIDEO_SURFACE_CREATE,
&device->vdp_video_surface_create},
{VDP_FUNC_ID_VIDEO_SURFACE_DESTROY,
&device->vdp_video_surface_destroy},
{VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
&device->vdp_video_surface_query_capabilities},
{VDP_FUNC_ID_VIDEO_SURFACE_QUERY_GET_PUT_BITS_Y_CB_CR_CAPABILITIES,
&device->vdp_video_surface_query_ycbcr_capabilities},
{VDP_FUNC_ID_VIDEO_SURFACE_GET_BITS_Y_CB_CR,
&device->vdp_video_surface_get_bits_ycbcr},
{VDP_FUNC_ID_VIDEO_SURFACE_PUT_BITS_Y_CB_CR,
&device->vdp_video_surface_put_bits_ycbcr},
{VDP_FUNC_ID_VIDEO_SURFACE_GET_PARAMETERS,
&device->vdp_video_surface_get_parameters},
{VDP_FUNC_ID_DECODER_CREATE, &device->vdp_decoder_create},
{VDP_FUNC_ID_DECODER_RENDER, &device->vdp_decoder_render},
{VDP_FUNC_ID_DECODER_DESTROY, &device->vdp_decoder_destroy},
{VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
&device->vdp_decoder_query_capabilities},
{VDP_FUNC_ID_DECODER_GET_PARAMETERS,
&device->vdp_decoder_get_parameters},
{VDP_FUNC_ID_VIDEO_MIXER_CREATE, &device->vdp_video_mixer_create},
{VDP_FUNC_ID_VIDEO_MIXER_DESTROY, &device->vdp_video_mixer_destroy},
{VDP_FUNC_ID_VIDEO_MIXER_RENDER, &device->vdp_video_mixer_render},
{VDP_FUNC_ID_VIDEO_MIXER_SET_FEATURE_ENABLES,
&device->vdp_video_mixer_set_feature_enables},
{VDP_FUNC_ID_VIDEO_MIXER_SET_ATTRIBUTE_VALUES,
&device->vdp_video_mixer_set_attribute_values},
{VDP_FUNC_ID_OUTPUT_SURFACE_CREATE, &device->vdp_output_surface_create},
{VDP_FUNC_ID_OUTPUT_SURFACE_DESTROY, &device->vdp_output_surface_destroy},
{VDP_FUNC_ID_OUTPUT_SURFACE_QUERY_CAPABILITIES,
&device->vdp_output_surface_query_capabilities},
{VDP_FUNC_ID_OUTPUT_SURFACE_GET_BITS_NATIVE,
&device->vdp_output_surface_get_bits_native},
{VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_CREATE_X11,
&device->vdp_presentation_queue_target_create_x11},
{VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_DESTROY,
&device->vdp_presentation_queue_target_destroy},
{VDP_FUNC_ID_PRESENTATION_QUEUE_CREATE,
&device->vdp_presentation_queue_create},
{VDP_FUNC_ID_PRESENTATION_QUEUE_DESTROY,
&device->vdp_presentation_queue_destroy},
{VDP_FUNC_ID_PRESENTATION_QUEUE_DISPLAY,
&device->vdp_presentation_queue_display},
{VDP_FUNC_ID_PRESENTATION_QUEUE_BLOCK_UNTIL_SURFACE_IDLE,
&device->vdp_presentation_queue_block_until_surface_idle},
{VDP_FUNC_ID_PRESENTATION_QUEUE_SET_BACKGROUND_COLOR,
&device->vdp_presentation_queue_set_background_color},
{VDP_FUNC_ID_PRESENTATION_QUEUE_QUERY_SURFACE_STATUS,
&device->vdp_presentation_queue_query_surface_status}
};
device->display = XOpenDisplay (device->display_name);
if (!device->display)
goto create_display_error;
screen = DefaultScreen (device->display);
status =
vdp_device_create_x11 (device->display, screen, &device->device,
&device->vdp_get_proc_address);
if (status != VDP_STATUS_OK)
goto create_device_error;
status = device->vdp_get_proc_address (device->device,
VDP_FUNC_ID_GET_ERROR_STRING, (void **) &device->vdp_get_error_string);
if (status != VDP_STATUS_OK)
goto get_error_string_error;
for (i = 0; i < G_N_ELEMENTS (vdp_function); i++) {
status = device->vdp_get_proc_address (device->device,
vdp_function[i].id, vdp_function[i].func);
if (status != VDP_STATUS_OK)
goto function_error;
}
return TRUE;
create_display_error:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
"Could not open X display with name: %s", device->display_name);
return FALSE;
create_device_error:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
"Could not create VDPAU device for display: %s", device->display_name);
return FALSE;
get_error_string_error:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
"Could not get vdp_get_error_string function pointer from VDPAU");
return FALSE;
function_error:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
"Could not get function pointer from VDPAU, error returned was: %s",
device->vdp_get_error_string (status));
return FALSE;
}
static GstVdpDevice *
gst_vdp_device_new (const gchar * display_name, GError ** error)
{
GstVdpDevice *device;
device = g_object_new (GST_TYPE_VDP_DEVICE, "display", display_name, NULL);
if (!gst_vdp_device_open (device, error)) {
g_object_unref (device);
return NULL;
}
return device;
}
static void
gst_vdp_device_init (GstVdpDevice * device)
{
device->display_name = NULL;
device->display = NULL;
device->device = VDP_INVALID_HANDLE;
device->vdp_decoder_destroy = NULL;
}
static void
gst_vdp_device_finalize (GObject * object)
{
GstVdpDevice *device = (GstVdpDevice *) object;
if (device->device != VDP_INVALID_HANDLE && device->vdp_decoder_destroy) {
device->vdp_device_destroy (device->device);
device->device = VDP_INVALID_HANDLE;
}
if (device->display) {
XCloseDisplay (device->display);
device->display = NULL;
}
g_free (device->display_name);
device->display_name = NULL;
G_OBJECT_CLASS (gst_vdp_device_parent_class)->finalize (object);
}
static void
gst_vdp_device_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVdpDevice *device;
g_return_if_fail (GST_IS_VDP_DEVICE (object));
device = (GstVdpDevice *) object;
switch (prop_id) {
case PROP_DISPLAY:
device->display_name = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_device_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVdpDevice *device;
g_return_if_fail (GST_IS_VDP_DEVICE (object));
device = (GstVdpDevice *) object;
switch (prop_id) {
case PROP_DISPLAY:
g_value_set_string (value, device->display_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_device_class_init (GstVdpDeviceClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_vdp_device_finalize;
object_class->get_property = gst_vdp_device_get_property;
object_class->set_property = gst_vdp_device_set_property;
g_object_class_install_property (object_class,
PROP_DISPLAY,
g_param_spec_string ("display",
"Display",
"X Display Name",
"", G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
}
typedef struct
{
GHashTable *hash_table;
GMutex *mutex;
} GstVdpDeviceCache;
static void
device_destroyed_cb (gpointer data, GObject * object)
{
GstVdpDeviceCache *device_cache = data;
GHashTableIter iter;
gpointer device;
GST_DEBUG ("Removing object from hash table");
g_mutex_lock (device_cache->mutex);
g_hash_table_iter_init (&iter, device_cache->hash_table);
while (g_hash_table_iter_next (&iter, NULL, &device)) {
if (device == object) {
g_hash_table_iter_remove (&iter);
break;
}
}
g_mutex_unlock (device_cache->mutex);
}
GstVdpDevice *
gst_vdp_get_device (const gchar * display_name, GError ** error)
{
static gsize once = 0;
static GstVdpDeviceCache device_cache;
GstVdpDevice *device;
if (g_once_init_enter (&once)) {
device_cache.hash_table =
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
device_cache.mutex = g_mutex_new ();
g_once_init_leave (&once, 1);
}
g_mutex_lock (device_cache.mutex);
if (display_name)
device = g_hash_table_lookup (device_cache.hash_table, display_name);
else
device = g_hash_table_lookup (device_cache.hash_table, "");
if (!device) {
device = gst_vdp_device_new (display_name, error);
if (device) {
g_object_weak_ref (G_OBJECT (device), device_destroyed_cb, &device_cache);
if (display_name)
g_hash_table_insert (device_cache.hash_table, g_strdup (display_name),
device);
else
g_hash_table_insert (device_cache.hash_table, g_strdup (""), device);
}
} else
g_object_ref (device);
g_mutex_unlock (device_cache.mutex);
return device;
}
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