mirror of
https://github.com/aaru-dps/Aaru.Compression.Native.git
synced 2026-11-04 11:15:46 +00:00
Natalia Portillo
adecbc7c7f
Every exported buffer transform now has the same shape:
int32_t AARU_xxx(const uint8_t *src_buffer, size_t src_size,
uint8_t *dst_buffer, size_t *dst_size, ...extras);
On entry *dst_size is the capacity of dst_buffer; on success it holds the
number of bytes written. The return value is 0 (AARU_ERROR_NONE) on success
and non-zero on error, either an AARU_ERROR_* constant or the underlying
library's own error code when it is propagated.
Changes by category:
- Parameter reorder only: all AARU_zip_*, AARU_stuffit*, AARU_dd_*,
AARU_cpt_*, AARU_lzo_*, AARU_xz_*, AARU_lzma2_*, AARU_kencode_*,
AARU_apple_lzh_* and ace_decompress_*.
- Byte count return replaced by an out-parameter plus a status code:
AARU_adc_*, AARU_apple_rle_*, AARU_lz4_*, AARU_lzip_*, AARU_lzfse_*,
AARU_lzvn_*, AARU_zstd_* and AARU_flac_*. Their algorithm bodies are kept
as static internals behind a thin exported wrapper.
- Type normalisation: bzip2 uint32_t* -> size_t*, zstd void* -> uint8_t*,
ZIP PPMd size_t -> size_t*, and int/unsigned char -> int32_t/uint8_t
throughout the header.
- AARU_lzma_decode_buffer no longer takes src_size as an in/out pointer; the
consumed length is tracked internally.
- Already conforming decompressors (arc_*, pak_*, ha_*, lha_*, larc_*,
pmarc_*, arj*, rar*, lh5_decompress) only had their declarations
normalised.
The streaming LZD context API and AARU_get_acn_version are left alone, as
they are not buffer transforms.
Tests updated to the new call convention; all 78 pass.
136 lines
3.4 KiB
C++
136 lines
3.4 KiB
C++
/*
|
|
* This file is part of the Aaru Data Preservation Suite.
|
|
* Copyright (c) 2019-2026 Natalia Portillo.
|
|
*
|
|
* This library is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as
|
|
* published by the Free Software Foundation; either version 2.1 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <climits>
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
|
|
#include "../library.h"
|
|
#include "crc32.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
#define EXPECTED_CRC32 0xc64059c0
|
|
|
|
static const uint8_t *buffer;
|
|
|
|
class xzFixture : public ::testing::Test
|
|
{
|
|
public:
|
|
xzFixture()
|
|
{
|
|
// initialization;
|
|
// can also be done in SetUp()
|
|
}
|
|
|
|
protected:
|
|
void SetUp()
|
|
{
|
|
char path[PATH_MAX];
|
|
char filename[PATH_MAX];
|
|
|
|
getcwd(path, PATH_MAX);
|
|
snprintf(filename, PATH_MAX, "%s/data/xz.xz", path);
|
|
|
|
FILE *file = fopen(filename, "rb");
|
|
buffer = (const uint8_t *)malloc(1048696);
|
|
fread((void *)buffer, 1, 1048696, file);
|
|
fclose(file);
|
|
}
|
|
|
|
void TearDown() { free((void *)buffer); }
|
|
|
|
~xzFixture()
|
|
{
|
|
// resources cleanup, no exceptions allowed
|
|
}
|
|
|
|
// shared user data
|
|
};
|
|
|
|
TEST_F(xzFixture, xz)
|
|
{
|
|
auto *outBuf = (uint8_t *)malloc(1048576);
|
|
|
|
size_t decoded = 1048576;
|
|
auto res = AARU_xz_decode_buffer(buffer, 1048696, outBuf, &decoded);
|
|
|
|
EXPECT_EQ(res, 0);
|
|
EXPECT_EQ(decoded, 1048576);
|
|
|
|
auto crc = crc32_data(outBuf, 1048576);
|
|
|
|
free(outBuf);
|
|
|
|
EXPECT_EQ(crc, EXPECTED_CRC32);
|
|
}
|
|
|
|
TEST_F(xzFixture, xzCompress)
|
|
{
|
|
size_t original_len = 8388608;
|
|
size_t cmp_len = original_len;
|
|
size_t decmp_len = original_len;
|
|
char path[PATH_MAX];
|
|
char filename[PATH_MAX * 2];
|
|
FILE *file;
|
|
uint32_t original_crc, decmp_crc;
|
|
const uint8_t *original;
|
|
uint8_t *cmp_buffer;
|
|
uint8_t *decmp_buffer;
|
|
size_t newSize;
|
|
|
|
// Allocate buffers
|
|
original = (const uint8_t *)malloc(original_len);
|
|
cmp_buffer = (uint8_t *)malloc(cmp_len);
|
|
decmp_buffer = (uint8_t *)malloc(decmp_len);
|
|
|
|
// Read the file
|
|
getcwd(path, PATH_MAX);
|
|
snprintf(filename, PATH_MAX, "%s/data/data.bin", path);
|
|
|
|
file = fopen(filename, "rb");
|
|
fread((void *)original, 1, original_len, file);
|
|
fclose(file);
|
|
|
|
// Calculate the CRC
|
|
original_crc = crc32_data(original, original_len);
|
|
|
|
// Compress
|
|
newSize = cmp_len;
|
|
int32_t res = AARU_xz_encode_buffer(original, original_len, cmp_buffer, &newSize, 9, 10);
|
|
cmp_len = newSize;
|
|
|
|
EXPECT_EQ(res, 0);
|
|
|
|
// Decompress
|
|
newSize = decmp_len;
|
|
res = AARU_xz_decode_buffer(cmp_buffer, cmp_len, decmp_buffer, &newSize);
|
|
decmp_len = newSize;
|
|
|
|
EXPECT_EQ(res, 0);
|
|
EXPECT_EQ(decmp_len, original_len);
|
|
|
|
decmp_crc = crc32_data(decmp_buffer, decmp_len);
|
|
|
|
// Free buffers
|
|
free((void *)original);
|
|
free(cmp_buffer);
|
|
free(decmp_buffer);
|
|
|
|
EXPECT_EQ(decmp_crc, original_crc);
|
|
}
|