gstreamer/gst-libs/gst/gl/gstgldisplay.c
Matthew Waters e80533dcee [793/906] add a GstGLContext object that will be the basis of OpenGL contexts
At the moment it just sits in between GstGLDisplay and GstGLWindow
performing some of the stuff that GstGLWindow used to do.
2017-12-09 19:31:30 +00:00

213 lines
5.3 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gl.h"
#include "gstgldisplay.h"
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");
G_DEFINE_TYPE_WITH_CODE (GstGLDisplay, gst_gl_display, G_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);
struct _GstGLDisplayPrivate
{
gint dummy;
};
/*------------------------------------------------------------
--------------------- For klass GstGLDisplay ---------------
----------------------------------------------------------*/
static void
gst_gl_display_class_init (GstGLDisplayClass * klass)
{
g_type_class_add_private (klass, sizeof (GstGLDisplayPrivate));
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->gl_vtable = g_slice_alloc0 (sizeof (GstGLFuncs));
display->gl_api = GST_GL_API_NONE;
gst_gl_memory_init ();
}
static void
gst_gl_display_finalize (GObject * object)
{
GstGLDisplay *display = GST_GL_DISPLAY (object);
if (display->gl_vtable) {
g_slice_free (GstGLFuncs, display->gl_vtable);
display->gl_vtable = NULL;
}
if (display->context) {
gst_object_unref (display->context);
display->context = NULL;
}
G_OBJECT_CLASS (gst_gl_display_parent_class)->finalize (object);
}
GstGLDisplay *
gst_gl_display_new (void)
{
return g_object_new (GST_TYPE_GL_DISPLAY, NULL);
}
#if 1
typedef struct
{
GstGLDisplay *display;
GstGLDisplayThreadFunc func;
gpointer data;
} RunGenericData;
static void
_gst_gl_display_thread_run_generic (RunGenericData * data)
{
GST_TRACE ("running function:%p data:%p", data->func, data->data);
data->func (data->display, data->data);
}
void
gst_gl_display_thread_add (GstGLDisplay * display,
GstGLDisplayThreadFunc func, gpointer data)
{
GstGLWindow *window;
RunGenericData rdata;
g_return_if_fail (GST_IS_GL_DISPLAY (display));
g_return_if_fail (GST_GL_IS_CONTEXT (display->context));
g_return_if_fail (func != NULL);
rdata.display = display;
rdata.data = data;
rdata.func = func;
window = gst_gl_context_get_window (display->context);
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (_gst_gl_display_thread_run_generic), &rdata);
gst_object_unref (window);
}
GstGLAPI
gst_gl_display_get_gl_api (GstGLDisplay * display)
{
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), GST_GL_API_NONE);
g_return_val_if_fail (GST_GL_IS_CONTEXT (display->context), GST_GL_API_NONE);
return gst_gl_context_get_gl_api (display->context);
}
gpointer
gst_gl_display_get_gl_vtable (GstGLDisplay * display)
{
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), NULL);
return display->gl_vtable;
}
#endif
void
gst_gl_display_set_context (GstGLDisplay * display, GstGLContext * context)
{
g_return_if_fail (GST_IS_GL_DISPLAY (display));
g_return_if_fail (GST_GL_IS_CONTEXT (context));
gst_gl_display_lock (display);
if (display->context)
gst_object_unref (display->context);
display->context = gst_object_ref (context);
gst_gl_display_unlock (display);
}
GstGLContext *
gst_gl_display_get_context (GstGLDisplay * display)
{
GstGLContext *context;
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), NULL);
gst_gl_display_lock (display);
context = display->context ? gst_object_ref (display->context) : NULL;
gst_gl_display_unlock (display);
return context;
}
GstGLContext *
gst_gl_display_get_context_unlocked (GstGLDisplay * display)
{
g_return_val_if_fail (GST_IS_GL_DISPLAY (display), NULL);
return display->context ? gst_object_ref (display->context) : NULL;
}
void
gst_context_set_gl_display (GstContext * context, GstGLDisplay * display)
{
GstStructure *s;
s = gst_context_writable_structure (context);
gst_structure_set (s, GST_GL_DISPLAY_CONTEXT_TYPE, GST_TYPE_GL_DISPLAY,
display, NULL);
}
gboolean
gst_context_get_gl_display (GstContext * context, GstGLDisplay ** display)
{
const GstStructure *s;
s = gst_context_get_structure (context);
return gst_structure_get (s, GST_GL_DISPLAY_CONTEXT_TYPE,
GST_TYPE_GL_DISPLAY, display, NULL);
}