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a4e49ba8c9
If there are two elements and threads attempting to query each other for an OpenGL context. The locking may result in a deadlock. We need to unlock each element's context_lock when querying another element for the OpenGL context in order to allow any other element to take the lock when the other element is querying for an OpenGL context. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/642>
145 lines
4.2 KiB
C
145 lines
4.2 KiB
C
/* GStreamer
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*
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* Copyright (C) 2020 Matthew Waters <matthew@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 <gst/gst.h>
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#include <gst/gl/gl.h>
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#include <gst/check/gstcheck.h>
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#include <gst/check/gstharness.h>
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static void
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replace_display (GstHarness * h)
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{
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GstContext *new_context;
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GstGLDisplay *new_display;
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GstGLContext *expected, *gl_context;
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GstBuffer *buf;
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/* replaces the GstGLDisplay used by @h with verification */
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fail_unless_equals_int (GST_FLOW_OK, gst_harness_push_from_src (h));
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buf = gst_harness_pull (h);
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fail_unless (buf != NULL);
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gst_clear_buffer (&buf);
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g_object_get (G_OBJECT (h->element), "context", &gl_context, NULL);
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fail_unless (gl_context != NULL);
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gst_clear_object (&gl_context);
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new_display = gst_gl_display_new ();
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fail_unless (gst_gl_display_create_context (new_display, NULL, &expected,
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NULL));
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fail_unless (expected != NULL);
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gst_gl_display_add_context (new_display, expected);
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new_context = gst_context_new (GST_GL_DISPLAY_CONTEXT_TYPE, TRUE);
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gst_context_set_gl_display (new_context, new_display);
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gst_element_set_context (h->element, new_context);
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gst_context_unref (new_context);
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new_context = NULL;
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fail_unless_equals_int (GST_FLOW_OK, gst_harness_push_from_src (h));
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buf = gst_harness_pull (h);
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fail_unless (buf != NULL);
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gst_clear_buffer (&buf);
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g_object_get (G_OBJECT (h->element), "context", &gl_context, NULL);
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fail_unless (gl_context != NULL);
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fail_unless (gl_context == expected);
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fail_unless (new_display == gl_context->display);
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gst_object_unref (expected);
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gst_object_unref (gl_context);
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gst_object_unref (new_display);
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}
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GST_START_TEST (test_glvideomixer_negotiate)
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{
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GstHarness *mix;
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GstBuffer *buf;
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mix = gst_harness_new_with_padnames ("glvideomixer", "sink_0", "src");
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gst_harness_use_systemclock (mix);
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gst_harness_set_blocking_push_mode (mix);
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gst_harness_set_caps_str (mix,
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"video/x-raw(memory:GLMemory),format=RGBA,width=1,height=1,framerate=25/1,texture-target=2D",
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"video/x-raw(memory:GLMemory),format=RGBA,width=1,height=1,framerate=25/1,texture-target=2D");
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gst_harness_add_src (mix, "gltestsrc", FALSE);
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gst_harness_set_blocking_push_mode (mix->src_harness);
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fail_unless_equals_int (GST_FLOW_OK, gst_harness_push_from_src (mix));
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buf = gst_harness_pull (mix);
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fail_unless (buf != NULL);
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gst_clear_buffer (&buf);
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gst_harness_teardown (mix);
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}
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GST_END_TEST;
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GST_START_TEST (test_glvideomixer_display_replace)
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{
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GstHarness *mix;
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mix = gst_harness_new_with_padnames ("glvideomixer", "sink_0", "src");
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gst_harness_use_systemclock (mix);
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gst_harness_set_blocking_push_mode (mix);
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gst_harness_set_caps_str (mix,
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"video/x-raw(memory:GLMemory),format=RGBA,width=1,height=1,framerate=25/1,texture-target=2D",
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"video/x-raw(memory:GLMemory),format=RGBA,width=1,height=1,framerate=25/1,texture-target=2D");
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gst_harness_add_src (mix, "gltestsrc", FALSE);
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gst_harness_set_blocking_push_mode (mix->src_harness);
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replace_display (mix);
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gst_harness_teardown (mix);
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}
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GST_END_TEST;
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static Suite *
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glmixer_suite (void)
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{
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Suite *s = suite_create ("glmixer");
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TCase *tc = tcase_create ("general");
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tcase_add_test (tc, test_glvideomixer_negotiate);
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tcase_add_test (tc, test_glvideomixer_display_replace);
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suite_add_tcase (s, tc);
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return s;
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}
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int
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main (int argc, char **argv)
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{
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Suite *s;
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g_setenv ("GST_GL_XINITTHREADS", "1", TRUE);
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gst_check_init (&argc, &argv);
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s = glmixer_suite ();
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return gst_check_run_suite (s, "glmixer", __FILE__);
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}
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