diff options
| -rw-r--r-- | indra/llcommon/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | indra/llcommon/bitpack.cpp | 36 | ||||
| -rw-r--r-- | indra/llcommon/tests/bitpack_test.cpp | 125 |
3 files changed, 162 insertions, 0 deletions
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt index cc55742df6..d635fad832 100644 --- a/indra/llcommon/CMakeLists.txt +++ b/indra/llcommon/CMakeLists.txt @@ -242,6 +242,7 @@ LL_ADD_PROJECT_UNIT_TESTS(llcommon "${llcommon_TEST_SOURCE_FILES}") #set(TEST_DEBUG on) set(test_libs llcommon ${LLCOMMON_LIBRARIES} ${WINDOWS_LIBRARIES}) LL_ADD_INTEGRATION_TEST(commonmisc "" "${test_libs}") +LL_ADD_INTEGRATION_TEST(bitpack "" "${test_libs}") LL_ADD_INTEGRATION_TEST(llbase64 "" "${test_libs}") LL_ADD_INTEGRATION_TEST(lldate "" "${test_libs}") LL_ADD_INTEGRATION_TEST(llerror "" "${test_libs}") diff --git a/indra/llcommon/bitpack.cpp b/indra/llcommon/bitpack.cpp new file mode 100644 index 0000000000..8db403febf --- /dev/null +++ b/indra/llcommon/bitpack.cpp @@ -0,0 +1,36 @@ +/** + * @file bitpack.cpp + * @brief LLBitPack class implementation + * + * $LicenseInfo:firstyear=2001&license=viewergpl$ + * + * Copyright (c) 2001-2009, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at + * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +// implementation is all in the header, this include dep ensures the unit test is rerun if the implementation changes. +#include "bitpack.h" diff --git a/indra/llcommon/tests/bitpack_test.cpp b/indra/llcommon/tests/bitpack_test.cpp new file mode 100644 index 0000000000..09fd037f02 --- /dev/null +++ b/indra/llcommon/tests/bitpack_test.cpp @@ -0,0 +1,125 @@ +/** + * @file bitpack_test.cpp + * @author Adroit + * @date 2007-02 + * @brief llstreamtools test cases. + * + * $LicenseInfo:firstyear=2007&license=viewergpl$ + * + * Copyright (c) 2007-2009, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at + * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "../bitpack.h" + +#include "../test/lltut.h" + + +namespace tut +{ + struct bit_pack + { + }; + typedef test_group<bit_pack> bit_pack_t; + typedef bit_pack_t::object bit_pack_object_t; + tut::bit_pack_t tut_bit_pack("bitpack"); + + // pack -> unpack + template<> template<> + void bit_pack_object_t::test<1>() + { + U8 packbuffer[255]; + U8 unpackbuffer[255]; + int pack_bufsize = 0; + int unpack_bufsize = 0; + + LLBitPack bitpack(packbuffer, 255); + + char str[] = "SecondLife is a 3D virtual world"; + int len = sizeof(str); + pack_bufsize = bitpack.bitPack((U8*) str, len*8); + pack_bufsize = bitpack.flushBitPack(); + + LLBitPack bitunpack(packbuffer, pack_bufsize*8); + unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, len*8); + ensure("bitPack: unpack size should be same as string size prior to pack", len == unpack_bufsize); + ensure_memory_matches("str->bitPack->bitUnpack should be equal to string", str, len, unpackbuffer, unpack_bufsize); + } + + // pack large, unpack in individual bytes + template<> template<> + void bit_pack_object_t::test<2>() + { + U8 packbuffer[255]; + U8 unpackbuffer[255]; + int pack_bufsize = 0; + int unpack_bufsize = 0; + + LLBitPack bitpack(packbuffer, 255); + + char str[] = "SecondLife"; + int len = sizeof(str); + pack_bufsize = bitpack.bitPack((U8*) str, len*8); + pack_bufsize = bitpack.flushBitPack(); + + LLBitPack bitunpack(packbuffer, pack_bufsize*8); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 0", unpackbuffer[0] == (U8) str[0]); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 1", unpackbuffer[0] == (U8) str[1]); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 2", unpackbuffer[0] == (U8) str[2]); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 3", unpackbuffer[0] == (U8) str[3]); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 4", unpackbuffer[0] == (U8) str[4]); + unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); + ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]); + unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, 8*4); // Life + ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4); + } + + // U32 packing + template<> template<> + void bit_pack_object_t::test<3>() + { + U8 packbuffer[255]; + int pack_bufsize = 0; + + LLBitPack bitpack(packbuffer, 255); + U32 num = 0x41fab67a; + pack_bufsize = bitpack.bitPack((U8*)&num, 8*sizeof(U32)); + pack_bufsize = bitpack.flushBitPack(); + + LLBitPack bitunpack(packbuffer, pack_bufsize*8); + U32 res = 0; + // since packing and unpacking is done on same machine in the unit test run, + // endianness should not matter + bitunpack.bitUnpack((U8*) &res, sizeof(res)*8); + ensure("U32->bitPack->bitUnpack->U32 should be equal", num == res); + } +} |