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Diffstat (limited to 'src/isa-l/igzip/igzip_example.c')
-rw-r--r-- | src/isa-l/igzip/igzip_example.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/isa-l/igzip/igzip_example.c b/src/isa-l/igzip/igzip_example.c new file mode 100644 index 00000000..5930c717 --- /dev/null +++ b/src/isa-l/igzip/igzip_example.c @@ -0,0 +1,101 @@ +/********************************************************************** + Copyright(c) 2011-2016 Intel Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**********************************************************************/ +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include "igzip_lib.h" + +#define BUF_SIZE 8192 +#ifndef LEVEL +# define LEVEL 0 +#else +# define LEVEL 1 +#endif + +struct isal_zstream stream; + +int main(int argc, char *argv[]) +{ + uint8_t inbuf[BUF_SIZE], outbuf[BUF_SIZE]; + FILE *in, *out; + + if (argc != 3) { + fprintf(stderr, "Usage: igzip_example infile outfile\n"); + exit(0); + } + in = fopen(argv[1], "rb"); + if (!in) { + fprintf(stderr, "Can't open %s for reading\n", argv[1]); + exit(0); + } + out = fopen(argv[2], "wb"); + if (!out) { + fprintf(stderr, "Can't open %s for writing\n", argv[2]); + exit(0); + } + + printf("igzip_example\nWindow Size: %d K\n", IGZIP_HIST_SIZE / 1024); + fflush(0); + + isal_deflate_init(&stream); + stream.end_of_stream = 0; + stream.flush = NO_FLUSH; + + if (LEVEL == 1) { + stream.level = 1; + stream.level_buf = malloc(ISAL_DEF_LVL1_DEFAULT); + stream.level_buf_size = ISAL_DEF_LVL1_DEFAULT; + if (stream.level_buf == 0) { + printf("Failed to allocate level compression buffer\n"); + exit(0); + } + } + + do { + stream.avail_in = (uint32_t) fread(inbuf, 1, BUF_SIZE, in); + stream.end_of_stream = feof(in) ? 1 : 0; + stream.next_in = inbuf; + do { + stream.avail_out = BUF_SIZE; + stream.next_out = outbuf; + + isal_deflate(&stream); + + fwrite(outbuf, 1, BUF_SIZE - stream.avail_out, out); + } while (stream.avail_out == 0); + + assert(stream.avail_in == 0); + } while (stream.internal_state.state != ZSTATE_END); + + fclose(out); + fclose(in); + + printf("End of igzip_example\n\n"); + return 0; +} |