| // Copyright 2017 The Wuffs Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // ---------------- |
| |
| /* |
| This test program is typically run indirectly, by the "wuffs test" or "wuffs |
| bench" commands. These commands take an optional "-mimic" flag to check that |
| Wuffs' output mimics (i.e. exactly matches) other libraries' output, such as |
| giflib for GIF, libpng for PNG, etc. |
| |
| To manually run this test: |
| |
| for CC in clang gcc; do |
| $CC -std=c99 -Wall -Werror adler32.c && ./a.out |
| rm -f a.out |
| done |
| |
| Each edition should print "PASS", amongst other information, and exit(0). |
| |
| Add the "wuffs mimic cflags" (everything after the colon below) to the C |
| compiler flags (after the .c file) to run the mimic tests. |
| |
| To manually run the benchmarks, replace "-Wall -Werror" with "-O3" and replace |
| the first "./a.out" with "./a.out -bench". Combine these changes with the |
| "wuffs mimic cflags" to run the mimic benchmarks. |
| */ |
| |
| // !! wuffs mimic cflags: -DWUFFS_MIMIC -lz |
| |
| // Wuffs ships as a "single file C library" or "header file library" as per |
| // https://github.com/nothings/stb/blob/master/docs/stb_howto.txt |
| // |
| // To use that single file as a "foo.c"-like implementation, instead of a |
| // "foo.h"-like header, #define WUFFS_IMPLEMENTATION before #include'ing or |
| // compiling it. |
| #define WUFFS_IMPLEMENTATION |
| |
| // Defining the WUFFS_CONFIG__MODULE* macros are optional, but it lets users of |
| // release/c/etc.c whitelist which parts of Wuffs to build. That file contains |
| // the entire Wuffs standard library, implementing a variety of codecs and file |
| // formats. Without this macro definition, an optimizing compiler or linker may |
| // very well discard Wuffs code for unused codecs, but listing the Wuffs |
| // modules we use makes that process explicit. Preprocessing means that such |
| // code simply isn't compiled. |
| #define WUFFS_CONFIG__MODULES |
| #define WUFFS_CONFIG__MODULE__BASE |
| #define WUFFS_CONFIG__MODULE__ADLER32 |
| |
| // If building this program in an environment that doesn't easily accommodate |
| // relative includes, you can use the script/inline-c-relative-includes.go |
| // program to generate a stand-alone C file. |
| #include "../../../release/c/wuffs-unsupported-snapshot.c" |
| #include "../testlib/testlib.c" |
| #ifdef WUFFS_MIMIC |
| #include "../mimiclib/deflate-gzip-zlib.c" |
| #endif |
| |
| // ---------------- Golden Tests |
| |
| golden_test adler32_midsummer_gt = { |
| .src_filename = "test/data/midsummer.txt", // |
| }; |
| |
| golden_test adler32_pi_gt = { |
| .src_filename = "test/data/pi.txt", // |
| }; |
| |
| // ---------------- Adler32 Tests |
| |
| const char* test_wuffs_adler32_golden() { |
| CHECK_FOCUS(__func__); |
| |
| struct { |
| const char* filename; |
| // The want values are determined by script/checksum.go. |
| uint32_t want; |
| } test_cases[] = { |
| { |
| .filename = "test/data/hat.bmp", |
| .want = 0x3D26D034, |
| }, |
| { |
| .filename = "test/data/hat.gif", |
| .want = 0x2A5EB144, |
| }, |
| { |
| .filename = "test/data/hat.jpeg", |
| .want = 0x3A503B1A, |
| }, |
| { |
| .filename = "test/data/hat.lossless.webp", |
| .want = 0xD059D427, |
| }, |
| { |
| .filename = "test/data/hat.lossy.webp", |
| .want = 0xF1BB258D, |
| }, |
| { |
| .filename = "test/data/hat.png", |
| .want = 0xDFC6C9C6, |
| }, |
| { |
| .filename = "test/data/hat.tiff", |
| .want = 0xBDC011E9, |
| }, |
| }; |
| |
| int i; |
| for (i = 0; i < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); i++) { |
| wuffs_base__io_buffer src = ((wuffs_base__io_buffer){ |
| .data = global_src_slice, |
| }); |
| const char* status = read_file(&src, test_cases[i].filename); |
| if (status) { |
| return status; |
| } |
| |
| int j; |
| for (j = 0; j < 2; j++) { |
| wuffs_adler32__hasher checksum; |
| status = wuffs_adler32__hasher__initialize( |
| &checksum, sizeof checksum, WUFFS_VERSION, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED); |
| if (status) { |
| RETURN_FAIL("initialize: \"%s\"", status); |
| } |
| |
| uint32_t got = 0; |
| size_t num_fragments = 0; |
| size_t num_bytes = 0; |
| do { |
| wuffs_base__slice_u8 data = ((wuffs_base__slice_u8){ |
| .ptr = src.data.ptr + num_bytes, |
| .len = src.meta.wi - num_bytes, |
| }); |
| size_t limit = 101 + 103 * num_fragments; |
| if ((j > 0) && (data.len > limit)) { |
| data.len = limit; |
| } |
| got = wuffs_adler32__hasher__update(&checksum, data); |
| num_fragments++; |
| num_bytes += data.len; |
| } while (num_bytes < src.meta.wi); |
| |
| if (got != test_cases[i].want) { |
| RETURN_FAIL("i=%d, j=%d, filename=\"%s\": got 0x%08" PRIX32 |
| ", want 0x%08" PRIX32 "\n", |
| i, j, test_cases[i].filename, got, test_cases[i].want); |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| const char* test_wuffs_adler32_pi() { |
| CHECK_FOCUS(__func__); |
| |
| const char* digits = |
| "3." |
| "141592653589793238462643383279502884197169399375105820974944592307816406" |
| "2862089986280348253421170"; |
| if (strlen(digits) != 99) { |
| RETURN_FAIL("strlen(digits): got %d, want 99", (int)(strlen(digits))); |
| } |
| |
| // The want values are determined by script/checksum.go. |
| // |
| // wants[i] is the checksum of the first i bytes of the digits string. |
| uint32_t wants[100] = { |
| 0x00000001, 0x00340034, 0x00960062, 0x01290093, 0x01F000C7, 0x02E800F8, |
| 0x0415012D, 0x057B0166, 0x07130198, 0x08E101CE, 0x0AE40203, 0x0D1A0236, |
| 0x0F85026B, 0x122802A3, 0x150402DC, 0x18170313, 0x1B63034C, 0x1EE2037F, |
| 0x229303B1, 0x267703E4, 0x2A93041C, 0x2EE30450, 0x33690486, 0x382104B8, |
| 0x3D0F04EE, 0x42310522, 0x47860555, 0x4D0E0588, 0x52CE05C0, 0x58C105F3, |
| 0x5EE60625, 0x6542065C, 0x6BD70695, 0x72A106CA, 0x799B06FA, 0x80C7072C, |
| 0x882B0764, 0x8FC7079C, 0x979707D0, 0x9F980801, 0xA7D2083A, 0xB0430871, |
| 0xB8E508A2, 0xC1BD08D8, 0xCACE0911, 0xD4120944, 0xDD8F097D, 0xE74509B6, |
| 0xF12E09E9, 0xFB4E0A20, 0x05B20A55, 0x10380A86, 0x1AEE0AB6, 0x25D90AEB, |
| 0x30FC0B23, 0x3C510B55, 0x47D60B85, 0x53940BBE, 0x5F890BF5, 0x6BB20C29, |
| 0x78140C62, 0x84AA0C96, 0x91740CCA, 0x9E730CFF, 0xABAB0D38, 0xB9150D6A, |
| 0xC6B20D9D, 0xD47F0DCD, 0xE2830E04, 0xF0BF0E3C, 0xFF2C0E6D, 0x0DDE0EA3, |
| 0x1CB50ED7, 0x2BBC0F07, 0x3AF90F3D, 0x4A680F6F, 0x5A0F0FA7, 0x69EC0FDD, |
| 0x79FB100F, 0x8A3A103F, 0x9AB11077, 0xAB6110B0, 0xBC4A10E9, 0xCD6B1121, |
| 0xDEC21157, 0xF04B1189, 0x021B11C1, 0x140C11F1, 0x26301224, 0x38881258, |
| 0x4B181290, 0x5DDA12C2, 0x70D112F7, 0x83FB132A, 0x9759135E, 0xAAE91390, |
| 0xBEAA13C1, 0xD29C13F2, 0xE6C51429, 0xFB1E1459, |
| }; |
| |
| int i; |
| for (i = 0; i < 100; i++) { |
| wuffs_adler32__hasher checksum; |
| const char* status = wuffs_adler32__hasher__initialize( |
| &checksum, sizeof checksum, WUFFS_VERSION, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED); |
| if (status) { |
| RETURN_FAIL("initialize: \"%s\"", status); |
| } |
| uint32_t got = |
| wuffs_adler32__hasher__update(&checksum, ((wuffs_base__slice_u8){ |
| .ptr = (uint8_t*)(digits), |
| .len = i, |
| })); |
| if (got != wants[i]) { |
| RETURN_FAIL("i=%d: got 0x%08" PRIX32 ", want 0x%08" PRIX32, i, got, |
| wants[i]); |
| } |
| } |
| return NULL; |
| } |
| |
| // ---------------- Adler32 Benches |
| |
| uint32_t global_wuffs_adler32_unused_u32; |
| |
| const char* wuffs_bench_adler32(wuffs_base__io_buffer* dst, |
| wuffs_base__io_buffer* src, |
| uint32_t wuffs_initialize_flags, |
| uint64_t wlimit, |
| uint64_t rlimit) { |
| uint64_t len = src->meta.wi - src->meta.ri; |
| if (rlimit) { |
| len = wuffs_base__u64__min(len, rlimit); |
| } |
| wuffs_adler32__hasher checksum; |
| const char* status = wuffs_adler32__hasher__initialize( |
| &checksum, sizeof checksum, WUFFS_VERSION, wuffs_initialize_flags); |
| if (status) { |
| return status; |
| } |
| global_wuffs_adler32_unused_u32 = wuffs_adler32__hasher__update( |
| &checksum, ((wuffs_base__slice_u8){ |
| .ptr = src->data.ptr + src->meta.ri, |
| .len = len, |
| })); |
| src->meta.ri += len; |
| return NULL; |
| } |
| |
| const char* bench_wuffs_adler32_10k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers( |
| wuffs_bench_adler32, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED, tc_src, |
| &adler32_midsummer_gt, 0, 0, 1500); |
| } |
| |
| const char* bench_wuffs_adler32_100k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers( |
| wuffs_bench_adler32, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED, tc_src, |
| &adler32_pi_gt, 0, 0, 150); |
| } |
| |
| // ---------------- Mimic Benches |
| |
| #ifdef WUFFS_MIMIC |
| |
| const char* bench_mimic_adler32_10k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers(mimic_bench_adler32, 0, tc_src, |
| &adler32_midsummer_gt, 0, 0, 1500); |
| } |
| |
| const char* bench_mimic_adler32_100k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers(mimic_bench_adler32, 0, tc_src, &adler32_pi_gt, 0, |
| 0, 150); |
| } |
| |
| #endif // WUFFS_MIMIC |
| |
| // ---------------- Manifest |
| |
| // Note that the adler32 mimic tests and benches don't work with |
| // WUFFS_MIMICLIB_USE_MINIZ_INSTEAD_OF_ZLIB. |
| |
| // The empty comments forces clang-format to place one element per line. |
| proc tests[] = { |
| |
| test_wuffs_adler32_golden, // |
| test_wuffs_adler32_pi, // |
| |
| NULL, |
| }; |
| |
| // The empty comments forces clang-format to place one element per line. |
| proc benches[] = { |
| |
| bench_wuffs_adler32_10k, // |
| bench_wuffs_adler32_100k, // |
| |
| #ifdef WUFFS_MIMIC |
| |
| bench_mimic_adler32_10k, // |
| bench_mimic_adler32_100k, // |
| |
| #endif // WUFFS_MIMIC |
| |
| NULL, |
| }; |
| |
| int main(int argc, char** argv) { |
| proc_package_name = "std/adler32"; |
| return test_main(argc, argv, tests, benches); |
| } |