gstreamer/gst-libs/gst/gl/viv-fb/gstgldisplay_viv_fb.c

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/*
* GStreamer
* Copyright (C) 2014 Matthew Waters <ystreet00@gmail.com>
* Copyright (C) 2015 Freescale Semiconductor <b55597@freescale.com>
* Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.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 "gstgldisplay_viv_fb.h"
GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
#define GST_CAT_DEFAULT gst_gl_display_debug
G_DEFINE_TYPE (GstGLDisplayVivFB, gst_gl_display_viv_fb, GST_TYPE_GL_DISPLAY);
static void gst_gl_display_viv_fb_finalize (GObject * object);
static guintptr gst_gl_display_viv_fb_get_handle (GstGLDisplay * display);
static void
gst_gl_display_viv_fb_class_init (GstGLDisplayVivFBClass * klass)
{
GST_GL_DISPLAY_CLASS (klass)->get_handle =
GST_DEBUG_FUNCPTR (gst_gl_display_viv_fb_get_handle);
G_OBJECT_CLASS (klass)->finalize = gst_gl_display_viv_fb_finalize;
}
static void
gst_gl_display_viv_fb_init (GstGLDisplayVivFB * display_viv_fb)
{
GstGLDisplay *display = (GstGLDisplay *) display_viv_fb;
display->type = GST_GL_DISPLAY_TYPE_VIV_FB;
display_viv_fb->disp_idx = 0;
display_viv_fb->display = NULL;
}
static void
gst_gl_display_viv_fb_finalize (GObject * object)
{
GstGLDisplayVivFB *display_viv_fb = GST_GL_DISPLAY_VIV_FB (object);
// We don't destroy the FB Display - it causes crashes in applications
// because Vivante doesn't seem to do any refcounting
G_OBJECT_CLASS (gst_gl_display_viv_fb_parent_class)->finalize (object);
}
/**
* gst_gl_display_viv_fb_new:
* @disp_idx: a display index
*
* Create a new #GstGLDisplayVivFB from the FB display index.
*
* Returns: (transfer full): a new #GstGLDisplayVivFB or %NULL
*/
GstGLDisplayVivFB *
gst_gl_display_viv_fb_new (gint disp_idx)
{
GstGLDisplayVivFB *display;
GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
GST_DEBUG ("creating Vivante FB EGL display %d", disp_idx);
display = g_object_new (GST_TYPE_GL_DISPLAY_VIV_FB, NULL);
gst_object_ref_sink (display);
display->disp_idx = disp_idx;
display->display = fbGetDisplayByIndex (display->disp_idx);
if (!display->display) {
GST_ERROR ("Failed to open Vivante FB display %d", disp_idx);
return NULL;
}
GST_DEBUG ("Created Vivante FB EGL display %p", (gpointer) display->display);
return display;
}
static guintptr
gst_gl_display_viv_fb_get_handle (GstGLDisplay * display)
{
return (guintptr) GST_GL_DISPLAY_VIV_FB (display)->display;
}