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c6a1bed1ad
Rename _is_writable() with _is_exclusive because the writability does not depend on the amount of references to the memory object anymore. Add accessor macros for the memory flags. Rename the GstBuffer _peek_memory() method to _get_memory() and return a reference to the memory now that we can do this without affecting writability of the memory object. Make it possible to also make this function merge the buffer memory. Add methods to replace memory in a buffer. Make some convience macros for the buffer memory functions. Fix unit tests.
526 lines
15 KiB
C
526 lines
15 KiB
C
/* GStreamer
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*
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* unit test for GstMemory
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*
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* Copyright (C) <2012> Wim Taymans <wim.taymans at gmail.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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#ifdef HAVE_VALGRIND_H
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# include <valgrind/valgrind.h>
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#else
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# define RUNNING_ON_VALGRIND FALSE
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#endif
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#include <gst/check/gstcheck.h>
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GST_START_TEST (test_submemory)
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{
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GstMemory *memory, *sub;
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GstMapInfo info, sinfo;
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memory = gst_allocator_alloc (NULL, 4, 0);
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/* check sizes, memory starts out empty */
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fail_unless (gst_memory_map (memory, &info, GST_MAP_WRITE));
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fail_unless (info.size == 4, "memory has wrong size");
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fail_unless (info.maxsize >= 4, "memory has wrong size");
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memset (info.data, 0, 4);
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gst_memory_unmap (memory, &info);
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fail_unless (gst_memory_map (memory, &info, GST_MAP_READ));
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sub = gst_memory_share (memory, 1, 2);
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fail_if (sub == NULL, "share of memory returned NULL");
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fail_unless (gst_memory_map (sub, &sinfo, GST_MAP_READ));
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fail_unless (sinfo.size == 2, "submemory has wrong size");
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fail_unless (memcmp (info.data + 1, sinfo.data, 2) == 0,
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"submemory contains the wrong data");
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ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
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gst_memory_unmap (sub, &sinfo);
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gst_memory_unref (sub);
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/* create a submemory of size 0 */
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sub = gst_memory_share (memory, 1, 0);
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fail_if (sub == NULL, "share memory returned NULL");
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fail_unless (gst_memory_map (sub, &sinfo, GST_MAP_READ));
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fail_unless (sinfo.size == 0, "submemory has wrong size");
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fail_unless (memcmp (info.data + 1, sinfo.data, 0) == 0,
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"submemory contains the wrong data");
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ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
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gst_memory_unmap (sub, &sinfo);
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gst_memory_unref (sub);
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/* test if metadata is coppied, not a complete memory copy so only the
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* timestamp and offset fields are copied. */
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sub = gst_memory_share (memory, 0, 1);
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fail_if (sub == NULL, "share of memory returned NULL");
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fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 1,
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"submemory has wrong size");
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gst_memory_unref (sub);
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/* test if metadata is coppied, a complete memory is copied so all the timing
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* fields should be copied. */
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sub = gst_memory_share (memory, 0, 4);
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fail_if (sub == NULL, "share of memory returned NULL");
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fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 4,
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"submemory has wrong size");
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/* clean up */
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gst_memory_unref (sub);
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gst_memory_unmap (memory, &info);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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GST_START_TEST (test_is_span)
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{
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GstMemory *memory, *sub1, *sub2;
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memory = gst_allocator_alloc (NULL, 4, 0);
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sub1 = gst_memory_share (memory, 0, 2);
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fail_if (sub1 == NULL, "share of memory returned NULL");
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sub2 = gst_memory_share (memory, 2, 2);
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fail_if (sub2 == NULL, "share of memory returned NULL");
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fail_if (gst_memory_is_span (memory, sub2, NULL) == TRUE,
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"a parent memory can't be span");
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fail_if (gst_memory_is_span (sub1, memory, NULL) == TRUE,
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"a parent memory can't be span");
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fail_if (gst_memory_is_span (sub1, sub2, NULL) == FALSE,
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"two submemorys next to each other should be span");
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/* clean up */
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gst_memory_unref (sub1);
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gst_memory_unref (sub2);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
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static GstMemory *
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create_read_only_memory (void)
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{
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GstMemory *mem;
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/* assign some read-only data to the new memory */
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mem = gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
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(gpointer) ro_memory, NULL, sizeof (ro_memory), 0, sizeof (ro_memory));
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fail_unless (GST_MEMORY_IS_READONLY (mem));
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return mem;
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}
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GST_START_TEST (test_writable)
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{
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GstMemory *mem, *mem2;
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GstMapInfo info;
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/* create read-only memory and try to write */
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mem = create_read_only_memory ();
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fail_if (gst_memory_map (mem, &info, GST_MAP_WRITE));
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mem2 = gst_memory_copy (mem, 0, -1);
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fail_unless (GST_MEMORY_IS_READONLY (mem));
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fail_if (GST_MEMORY_IS_READONLY (mem2));
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fail_unless (gst_memory_map (mem2, &info, GST_MAP_WRITE));
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info.data[4] = 'a';
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gst_memory_unmap (mem2, &info);
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gst_memory_ref (mem2);
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fail_if (gst_memory_map (mem, &info, GST_MAP_WRITE));
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gst_memory_unref (mem2);
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fail_unless (gst_memory_map (mem2, &info, GST_MAP_WRITE));
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info.data[4] = 'a';
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gst_memory_unmap (mem2, &info);
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gst_memory_unref (mem2);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_submemory_writable)
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{
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GstMemory *mem, *sub_mem;
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GstMapInfo info;
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/* create sub-memory of read-only memory and try to write */
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mem = create_read_only_memory ();
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sub_mem = gst_memory_share (mem, 0, 8);
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fail_unless (GST_MEMORY_IS_READONLY (sub_mem));
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fail_if (gst_memory_map (mem, &info, GST_MAP_WRITE));
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fail_if (gst_memory_map (sub_mem, &info, GST_MAP_WRITE));
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gst_memory_unref (sub_mem);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_copy)
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{
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GstMemory *memory, *copy;
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GstMapInfo info, sinfo;
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memory = gst_allocator_alloc (NULL, 4, 0);
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ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
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copy = gst_memory_copy (memory, 0, -1);
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ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
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ASSERT_MEMORY_REFCOUNT (copy, "copy", 1);
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/* memorys are copied and must point to different memory */
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fail_if (memory == copy);
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fail_unless (gst_memory_map (memory, &info, GST_MAP_READ));
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fail_unless (gst_memory_map (copy, &sinfo, GST_MAP_READ));
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/* NOTE that data is refcounted */
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fail_unless (info.size == sinfo.size);
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gst_memory_unmap (copy, &sinfo);
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gst_memory_unmap (memory, &info);
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gst_memory_unref (copy);
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gst_memory_unref (memory);
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memory = gst_allocator_alloc (NULL, 0, 0);
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fail_unless (gst_memory_map (memory, &info, GST_MAP_READ));
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fail_unless (info.size == 0);
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gst_memory_unmap (memory, &info);
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/* copying a 0-sized memory should not crash */
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copy = gst_memory_copy (memory, 0, -1);
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fail_unless (gst_memory_map (copy, &info, GST_MAP_READ));
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fail_unless (info.size == 0);
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gst_memory_unmap (copy, &info);
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gst_memory_unref (copy);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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GST_START_TEST (test_try_new_and_alloc)
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{
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GstMemory *mem;
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GstMapInfo info;
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mem = gst_allocator_alloc (NULL, 0, 0);
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fail_unless (mem != NULL);
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fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
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fail_unless (info.size == 0);
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gst_memory_unmap (mem, &info);
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gst_memory_unref (mem);
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/* normal alloc should still work */
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mem = gst_allocator_alloc (NULL, 640 * 480 * 4, 0);
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fail_unless (mem != NULL);
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fail_unless (gst_memory_map (mem, &info, GST_MAP_WRITE));
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fail_unless (info.data != NULL);
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fail_unless (info.size == (640 * 480 * 4));
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info.data[640 * 479 * 4 + 479] = 0xff;
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gst_memory_unmap (mem, &info);
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gst_memory_unref (mem);
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#if 0
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/* Disabled this part of the test, because it happily succeeds on 64-bit
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* machines that have enough memory+swap, because the address space is large
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* enough. There's not really any way to test the failure case except by
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* allocating chunks of memory until it fails, which would suck. */
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/* now this better fail (don't run in valgrind, it will abort
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* or warn when passing silly arguments to malloc) */
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if (!RUNNING_ON_VALGRIND) {
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mem = gst_allocator_alloc (NULL, (guint) - 1, 0);
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fail_unless (mem == NULL);
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}
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#endif
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}
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GST_END_TEST;
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GST_START_TEST (test_resize)
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{
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GstMemory *mem;
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gsize maxalloc;
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gsize size, maxsize, offset;
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/* one memory block */
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mem = gst_allocator_alloc (NULL, 100, 0);
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size = gst_memory_get_sizes (mem, &offset, &maxalloc);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxalloc >= 100);
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ASSERT_CRITICAL (gst_memory_resize (mem, 200, 50));
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ASSERT_CRITICAL (gst_memory_resize (mem, 0, 150));
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ASSERT_CRITICAL (gst_memory_resize (mem, 1, maxalloc));
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ASSERT_CRITICAL (gst_memory_resize (mem, maxalloc, 1));
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/* this does nothing */
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gst_memory_resize (mem, 0, 100);
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/* nothing should have changed */
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 0, 50);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 50);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 0, 100);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 1, 99);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 99);
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fail_unless (offset == 1);
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fail_unless (maxsize == maxalloc);
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ASSERT_CRITICAL (gst_memory_resize (mem, 1, maxalloc - 1));
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gst_memory_resize (mem, 0, 99);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 99);
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fail_unless (offset == 1);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, -1, 100);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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/* can't set offset below 0 */
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ASSERT_CRITICAL (gst_memory_resize (mem, -1, 100));
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gst_memory_resize (mem, 50, 40);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 40);
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fail_unless (offset == 50);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, -50, 100);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 0, 0);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 0);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 0, 100);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (mem, 0, 100);
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size = gst_memory_get_sizes (mem, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_map)
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{
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GstMemory *mem;
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GstMapInfo info;
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gsize maxalloc;
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gsize size, offset;
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/* one memory block */
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mem = gst_allocator_alloc (NULL, 100, 0);
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size = gst_memory_get_sizes (mem, &offset, &maxalloc);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxalloc >= 100);
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/* see if simply mapping works */
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fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
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fail_unless (info.data != NULL);
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fail_unless (info.size == 100);
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fail_unless (info.maxsize == maxalloc);
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gst_memory_unmap (mem, &info);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_map_nested)
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{
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GstMemory *mem;
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GstMapInfo info1, info2;
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mem = gst_allocator_alloc (NULL, 100, 0);
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/* nested mapping */
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fail_unless (gst_memory_map (mem, &info1, GST_MAP_READ));
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fail_unless (info1.data != NULL);
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fail_unless (info1.size == 100);
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fail_unless (gst_memory_map (mem, &info2, GST_MAP_READ));
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fail_unless (info2.data == info1.data);
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fail_unless (info2.size == 100);
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/* unmap */
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gst_memory_unmap (mem, &info2);
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gst_memory_unmap (mem, &info1);
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fail_unless (gst_memory_map (mem, &info1, GST_MAP_READ));
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/* not allowed */
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fail_if (gst_memory_map (mem, &info2, GST_MAP_WRITE));
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fail_if (gst_memory_map (mem, &info2, GST_MAP_READWRITE));
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fail_unless (gst_memory_map (mem, &info2, GST_MAP_READ));
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gst_memory_unmap (mem, &info2);
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gst_memory_unmap (mem, &info1);
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fail_unless (mem->state == 0);
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fail_unless (gst_memory_map (mem, &info1, GST_MAP_WRITE));
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/* not allowed */
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fail_if (gst_memory_map (mem, &info2, GST_MAP_READ));
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fail_if (gst_memory_map (mem, &info2, GST_MAP_READWRITE));
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fail_unless (gst_memory_map (mem, &info2, GST_MAP_WRITE));
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gst_memory_unmap (mem, &info1);
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gst_memory_unmap (mem, &info2);
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/* nothing was mapped */
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ASSERT_CRITICAL (gst_memory_unmap (mem, &info2));
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fail_unless (gst_memory_map (mem, &info1, GST_MAP_READWRITE));
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fail_unless (gst_memory_map (mem, &info2, GST_MAP_READ));
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gst_memory_unmap (mem, &info2);
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fail_unless (gst_memory_map (mem, &info2, GST_MAP_WRITE));
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gst_memory_unmap (mem, &info2);
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gst_memory_unmap (mem, &info1);
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/* nothing was mapped */
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ASSERT_CRITICAL (gst_memory_unmap (mem, &info1));
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_map_resize)
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{
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GstMemory *mem;
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GstMapInfo info;
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gsize size, maxalloc, offset;
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mem = gst_allocator_alloc (NULL, 100, 0);
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/* do mapping */
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fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
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fail_unless (info.data != NULL);
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fail_unless (info.size == 100);
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/* resize the buffer */
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gst_memory_resize (mem, 1, info.size - 1);
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size = gst_memory_get_sizes (mem, &offset, &maxalloc);
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fail_unless (size == 99);
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|
fail_unless (offset == 1);
|
|
fail_unless (maxalloc >= 100);
|
|
gst_memory_unmap (mem, &info);
|
|
|
|
size = gst_memory_get_sizes (mem, &offset, &maxalloc);
|
|
fail_unless (size == 99);
|
|
fail_unless (offset == 1);
|
|
fail_unless (maxalloc >= 100);
|
|
|
|
fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
|
|
fail_unless (info.data != NULL);
|
|
fail_unless (info.size == 99);
|
|
fail_unless (info.maxsize >= 100);
|
|
gst_memory_unmap (mem, &info);
|
|
|
|
/* and larger */
|
|
fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
|
|
gst_memory_resize (mem, -1, 100);
|
|
gst_memory_unmap (mem, &info);
|
|
|
|
size = gst_memory_get_sizes (mem, &offset, &maxalloc);
|
|
fail_unless (size == 100);
|
|
fail_unless (offset == 0);
|
|
fail_unless (maxalloc >= 100);
|
|
|
|
fail_unless (gst_memory_map (mem, &info, GST_MAP_READ));
|
|
gst_memory_unmap (mem, &info);
|
|
gst_memory_unref (mem);
|
|
}
|
|
|
|
GST_END_TEST;
|
|
|
|
|
|
static Suite *
|
|
gst_memory_suite (void)
|
|
{
|
|
Suite *s = suite_create ("GstMemory");
|
|
TCase *tc_chain = tcase_create ("general");
|
|
|
|
suite_add_tcase (s, tc_chain);
|
|
tcase_add_test (tc_chain, test_submemory);
|
|
tcase_add_test (tc_chain, test_submemory_writable);
|
|
tcase_add_test (tc_chain, test_writable);
|
|
tcase_add_test (tc_chain, test_is_span);
|
|
tcase_add_test (tc_chain, test_copy);
|
|
tcase_add_test (tc_chain, test_try_new_and_alloc);
|
|
tcase_add_test (tc_chain, test_resize);
|
|
tcase_add_test (tc_chain, test_map);
|
|
tcase_add_test (tc_chain, test_map_nested);
|
|
tcase_add_test (tc_chain, test_map_resize);
|
|
|
|
return s;
|
|
}
|
|
|
|
GST_CHECK_MAIN (gst_memory);
|