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a4834c4352
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
104 lines
3.1 KiB
C
104 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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