mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
Fixes compiler warning about set but not used platform_choice variable among other things.
232 lines
6.2 KiB
C
232 lines
6.2 KiB
C
/*
|
|
* GStreamer
|
|
* Copyright (C) 2007 David A. Schleef <ds@schleef.org>
|
|
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
|
|
* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
|
|
* Copyright (C) 2013 Matthew Waters <ystreet00@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.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:gstgldisplay
|
|
* @short_description: window system display connection abstraction
|
|
* @title: GstGLDisplay
|
|
* @see_also: #GstContext, #GstGLContext, #GstGLWindow
|
|
*
|
|
* #GstGLDisplay represents a connection to the underlying windowing system.
|
|
* Elements are required to make use of #GstContext to share and propogate
|
|
* a #GstGLDisplay.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gl.h"
|
|
#include "gstgldisplay.h"
|
|
|
|
#if GST_GL_HAVE_WINDOW_X11
|
|
#include <gst/gl/x11/gstgldisplay_x11.h>
|
|
#endif
|
|
#if GST_GL_HAVE_PLATFORM_EGL
|
|
#include <gst/gl/egl/gstgldisplay_egl.h>
|
|
#include <gst/gl/egl/gsteglimagememory.h>
|
|
#endif
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_context);
|
|
GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
|
|
#define GST_CAT_DEFAULT gst_gl_display_debug
|
|
|
|
#define DEBUG_INIT \
|
|
GST_DEBUG_CATEGORY_INIT (gst_gl_display_debug, "gldisplay", 0, "opengl display"); \
|
|
GST_DEBUG_CATEGORY_GET (gst_context, "GST_CONTEXT");
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GstGLDisplay, gst_gl_display, GST_TYPE_OBJECT,
|
|
DEBUG_INIT);
|
|
|
|
#define GST_GL_DISPLAY_GET_PRIVATE(o) \
|
|
(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_TYPE_GL_DISPLAY, GstGLDisplayPrivate))
|
|
|
|
static void gst_gl_display_finalize (GObject * object);
|
|
static guintptr gst_gl_display_default_get_handle (GstGLDisplay * display);
|
|
|
|
struct _GstGLDisplayPrivate
|
|
{
|
|
gint dummy;
|
|
};
|
|
|
|
static void
|
|
gst_gl_display_class_init (GstGLDisplayClass * klass)
|
|
{
|
|
g_type_class_add_private (klass, sizeof (GstGLDisplayPrivate));
|
|
|
|
klass->get_handle = gst_gl_display_default_get_handle;
|
|
|
|
G_OBJECT_CLASS (klass)->finalize = gst_gl_display_finalize;
|
|
}
|
|
|
|
static void
|
|
gst_gl_display_init (GstGLDisplay * display)
|
|
{
|
|
display->priv = GST_GL_DISPLAY_GET_PRIVATE (display);
|
|
|
|
display->type = GST_GL_DISPLAY_TYPE_ANY;
|
|
|
|
GST_TRACE ("init %p", display);
|
|
|
|
gst_gl_memory_init ();
|
|
|
|
#if GST_GL_HAVE_PLATFORM_EGL
|
|
gst_egl_image_memory_init ();
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
gst_gl_display_finalize (GObject * object)
|
|
{
|
|
GST_TRACE ("finalize %p", object);
|
|
|
|
G_OBJECT_CLASS (gst_gl_display_parent_class)->finalize (object);
|
|
}
|
|
|
|
/**
|
|
* gst_gl_display_new:
|
|
*
|
|
* Returns: (transfer full): a new #GstGLDisplay
|
|
*/
|
|
GstGLDisplay *
|
|
gst_gl_display_new (void)
|
|
{
|
|
GstGLDisplay *display = NULL;
|
|
const gchar *user_choice, *platform_choice;
|
|
static volatile gsize _init = 0;
|
|
|
|
if (g_once_init_enter (&_init)) {
|
|
GST_DEBUG_CATEGORY_INIT (gst_gl_display_debug, "gldisplay", 0,
|
|
"gldisplay element");
|
|
g_once_init_leave (&_init, 1);
|
|
}
|
|
|
|
user_choice = g_getenv ("GST_GL_WINDOW");
|
|
platform_choice = g_getenv ("GST_GL_PLATFORM");
|
|
GST_INFO ("creating a display, user choice:%s (platform: %s)",
|
|
GST_STR_NULL (user_choice), GST_STR_NULL (platform_choice));
|
|
|
|
#if GST_GL_HAVE_WINDOW_COCOA
|
|
if (!display && (!user_choice || g_strstr_len (user_choice, 5, "cocoa")))
|
|
display = g_object_new (GST_TYPE_GL_DISPLAY, NULL);
|
|
#endif
|
|
#if GST_GL_HAVE_WINDOW_X11
|
|
if (!display && (!user_choice || g_strstr_len (user_choice, 3, "x11")))
|
|
display = GST_GL_DISPLAY (gst_gl_display_x11_new (NULL));
|
|
#endif
|
|
#if GST_GL_HAVE_PLATFORM_EGL
|
|
if (!display && (!platform_choice
|
|
|| g_strstr_len (platform_choice, 3, "egl")))
|
|
display = GST_GL_DISPLAY (gst_gl_display_egl_new ());
|
|
#endif
|
|
if (!display) {
|
|
/* subclass returned a NULL window */
|
|
GST_WARNING ("Could not create display. user specified %s "
|
|
"(platform: %s), creating dummy",
|
|
GST_STR_NULL (user_choice), GST_STR_NULL (platform_choice));
|
|
|
|
return g_object_new (GST_TYPE_GL_DISPLAY, NULL);
|
|
}
|
|
|
|
return display;
|
|
}
|
|
|
|
guintptr
|
|
gst_gl_display_get_handle (GstGLDisplay * display)
|
|
{
|
|
GstGLDisplayClass *klass;
|
|
|
|
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), 0);
|
|
klass = GST_GL_DISPLAY_GET_CLASS (display);
|
|
g_return_val_if_fail (klass->get_handle != NULL, 0);
|
|
|
|
return klass->get_handle (display);
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_display_default_get_handle (GstGLDisplay * display)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* gst_gl_display_get_handle_type:
|
|
* @display: a #GstGLDisplay
|
|
*
|
|
* Returns: the #GstGLDisplayType of @display
|
|
*/
|
|
GstGLDisplayType
|
|
gst_gl_display_get_handle_type (GstGLDisplay * display)
|
|
{
|
|
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), GST_GL_DISPLAY_TYPE_NONE);
|
|
|
|
return display->type;
|
|
}
|
|
|
|
/**
|
|
* gst_context_set_gl_display:
|
|
* @context: a #GstContext
|
|
* @display: resulting #GstGLDisplay
|
|
*
|
|
* Sets @display on @context
|
|
*/
|
|
void
|
|
gst_context_set_gl_display (GstContext * context, GstGLDisplay * display)
|
|
{
|
|
GstStructure *s;
|
|
|
|
g_return_if_fail (context != NULL);
|
|
|
|
GST_CAT_LOG (gst_context, "setting GstGLDisplay(%p) on context(%p)", display,
|
|
context);
|
|
|
|
s = gst_context_writable_structure (context);
|
|
gst_structure_set (s, GST_GL_DISPLAY_CONTEXT_TYPE, GST_TYPE_GL_DISPLAY,
|
|
display, NULL);
|
|
}
|
|
|
|
/**
|
|
* gst_context_get_gl_display:
|
|
* @context: a #GstContext
|
|
* @display: resulting #GstGLDisplay
|
|
*
|
|
* Returns: Whether @display was in @context
|
|
*/
|
|
gboolean
|
|
gst_context_get_gl_display (GstContext * context, GstGLDisplay ** display)
|
|
{
|
|
const GstStructure *s;
|
|
gboolean ret;
|
|
|
|
g_return_val_if_fail (display != NULL, FALSE);
|
|
g_return_val_if_fail (context != NULL, FALSE);
|
|
|
|
s = gst_context_get_structure (context);
|
|
ret = gst_structure_get (s, GST_GL_DISPLAY_CONTEXT_TYPE,
|
|
GST_TYPE_GL_DISPLAY, display, NULL);
|
|
|
|
GST_CAT_LOG (gst_context, "got GstGLDisplay(%p) from context(%p)", *display,
|
|
context);
|
|
|
|
return ret;
|
|
}
|