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It causes crashes in applications because the result of fbGetDisplay() might be in use elsewhere in the application and Vivante doesn't seem to do any refcounting
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2014 Matthew Waters <ystreet00@gmail.com>
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* Copyright (C) 2015 Freescale Semiconductor <b55597@freescale.com>
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* Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstgldisplay_viv_fb.h"
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GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
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#define GST_CAT_DEFAULT gst_gl_display_debug
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G_DEFINE_TYPE (GstGLDisplayVivFB, gst_gl_display_viv_fb, GST_TYPE_GL_DISPLAY);
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static void gst_gl_display_viv_fb_finalize (GObject * object);
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static guintptr gst_gl_display_viv_fb_get_handle (GstGLDisplay * display);
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static void
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gst_gl_display_viv_fb_class_init (GstGLDisplayVivFBClass * klass)
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{
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GST_GL_DISPLAY_CLASS (klass)->get_handle =
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GST_DEBUG_FUNCPTR (gst_gl_display_viv_fb_get_handle);
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G_OBJECT_CLASS (klass)->finalize = gst_gl_display_viv_fb_finalize;
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}
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static void
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gst_gl_display_viv_fb_init (GstGLDisplayVivFB * display_viv_fb)
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{
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GstGLDisplay *display = (GstGLDisplay *) display_viv_fb;
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display->type = GST_GL_DISPLAY_TYPE_VIV_FB;
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display_viv_fb->disp_idx = 0;
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display_viv_fb->display = NULL;
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}
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static void
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gst_gl_display_viv_fb_finalize (GObject * object)
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{
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GstGLDisplayVivFB *display_viv_fb = GST_GL_DISPLAY_VIV_FB (object);
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// We don't destroy the FB Display - it causes crashes in applications
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// because Vivante doesn't seem to do any refcounting
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G_OBJECT_CLASS (gst_gl_display_viv_fb_parent_class)->finalize (object);
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}
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/**
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* gst_gl_display_viv_fb_new:
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* @disp_idx: a display index
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*
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* Create a new #GstGLDisplayVivFB from the FB display index.
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*
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* Returns: (transfer full): a new #GstGLDisplayVivFB or %NULL
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*/
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GstGLDisplayVivFB *
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gst_gl_display_viv_fb_new (gint disp_idx)
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{
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GstGLDisplayVivFB *display;
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GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
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GST_DEBUG ("creating Vivante FB EGL display %d", disp_idx);
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display = g_object_new (GST_TYPE_GL_DISPLAY_VIV_FB, NULL);
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gst_object_ref_sink (display);
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display->disp_idx = disp_idx;
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display->display = fbGetDisplayByIndex (display->disp_idx);
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if (!display->display) {
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GST_ERROR ("Failed to open Vivante FB display %d", disp_idx);
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return NULL;
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}
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GST_DEBUG ("Created Vivante FB EGL display %p", (gpointer) display->display);
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return display;
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}
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static guintptr
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gst_gl_display_viv_fb_get_handle (GstGLDisplay * display)
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{
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return (guintptr) GST_GL_DISPLAY_VIV_FB (display)->display;
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}
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