diff options
Diffstat (limited to 'src/isa-l/igzip/generate_static_inflate.c')
| -rw-r--r-- | src/isa-l/igzip/generate_static_inflate.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/isa-l/igzip/generate_static_inflate.c b/src/isa-l/igzip/generate_static_inflate.c new file mode 100644 index 000000000..391767765 --- /dev/null +++ b/src/isa-l/igzip/generate_static_inflate.c @@ -0,0 +1,205 @@ +/********************************************************************** + Copyright(c) 2011-2018 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 <stdint.h> +#include <stdio.h> +#include <inttypes.h> +#include <string.h> +#include <stdlib.h> +#include "igzip_lib.h" + +#define STATIC_INFLATE_FILE "static_inflate.h" +#define DOUBLE_SYM_THRESH (4 * 1024) + +extern struct isal_hufftables hufftables_default; + +/** + * @brief Prints a table of uint16_t elements to a file. + * @param outfile: the file the table is printed to. + * @param table: the table to be printed. + * @param length: number of elements to be printed. + * @param header: header to append in front of the table. + * @param footer: footer to append at the end of the table. + * @param begin_line: string printed at beginning of new line + */ +void fprint_uint16_table(FILE * outfile, uint16_t * table, uint64_t length, char *header, + char *footer, char *begin_line) +{ + int i; + fprintf(outfile, "%s", header); + for (i = 0; i < length - 1; i++) { + if ((i & 7) == 0) + fprintf(outfile, "\n%s", begin_line); + else + fprintf(outfile, " "); + fprintf(outfile, "0x%04x,", table[i]); + } + + if ((i & 7) == 0) + fprintf(outfile, "\n%s", begin_line); + else + fprintf(outfile, " "); + fprintf(outfile, "0x%04x", table[i]); + fprintf(outfile, "%s", footer); + +} + +/** + * @brief Prints a table of uint32_t elements to a file. + * @param outfile: the file the table is printed to. + * @param table: the table to be printed. + * @param length: number of elements to be printed. + * @param header: header to append in front of the table. + * @param footer: footer to append at the end of the table. + * @param begin_line: string printed at beginning of new line + */ +void fprint_uint32_table(FILE * outfile, uint32_t * table, uint64_t length, char *header, + char *footer, char *begin_line) +{ + int i; + fprintf(outfile, "%s", header); + for (i = 0; i < length - 1; i++) { + if ((i & 3) == 0) + fprintf(outfile, "\n%s", begin_line); + else + fprintf(outfile, " "); + fprintf(outfile, "0x%08x,", table[i]); + } + + if ((i & 3) == 0) + fprintf(outfile, "%s", begin_line); + else + fprintf(outfile, " "); + fprintf(outfile, "0x%08x", table[i]); + fprintf(outfile, "%s", footer); + +} + +void fprint_header(FILE * output_file) +{ + fprintf(output_file, "#include \"igzip_lib.h\"\n\n"); + fprintf(output_file, "#define LONG_BITS_CHECK %d\n", ISAL_DECODE_LONG_BITS); + fprintf(output_file, "#define SHORT_BITS_CHECK %d\n", ISAL_DECODE_SHORT_BITS); + fprintf(output_file, + "#if (LONG_BITS_CHECK == ISAL_DECODE_LONG_BITS) && (SHORT_BITS_CHECK == ISAL_DECODE_SHORT_BITS)\n" + "# define ISAL_STATIC_INFLATE_TABLE\n" + "#else\n" + "# warning \"Incompatible compile time defines for optimized static inflate table.\"\n" + "#endif\n\n"); +} + +int main(int argc, char *argv[]) +{ + struct inflate_state state; + FILE *file; + uint8_t static_deflate_hdr = 3; + uint8_t tmp_space[8], *in_buf; + + if (NULL == (in_buf = malloc(DOUBLE_SYM_THRESH + 1))) { + printf("Can not allocote memory\n"); + return 1; + } + + isal_inflate_init(&state); + + memcpy(in_buf, &static_deflate_hdr, sizeof(static_deflate_hdr)); + state.next_in = in_buf; + state.avail_in = DOUBLE_SYM_THRESH + 1; + state.next_out = tmp_space; + state.avail_out = sizeof(tmp_space); + + isal_inflate(&state); + + file = fopen(STATIC_INFLATE_FILE, "w"); + + if (file == NULL) { + printf("Error creating file hufftables_c.c\n"); + return 1; + } + // Add decode tables describing a type 2 static (fixed) header + + fprintf(file, "#ifndef STATIC_HEADER_H\n" "#define STATIC_HEADER_H\n\n"); + + fprint_header(file); + + fprintf(file, "struct inflate_huff_code_large static_lit_huff_code = {\n"); + fprint_uint32_table(file, state.lit_huff_code.short_code_lookup, + sizeof(state.lit_huff_code.short_code_lookup) / sizeof(uint32_t), + "\t.short_code_lookup = {", "\t},\n\n", "\t\t"); + fprint_uint16_table(file, state.lit_huff_code.long_code_lookup, + sizeof(state.lit_huff_code.long_code_lookup) / sizeof(uint16_t), + "\t.long_code_lookup = {", "\t}\n", "\t\t"); + fprintf(file, "};\n\n"); + + fprintf(file, "struct inflate_huff_code_small static_dist_huff_code = {\n"); + fprint_uint16_table(file, state.dist_huff_code.short_code_lookup, + sizeof(state.dist_huff_code.short_code_lookup) / sizeof(uint16_t), + "\t.short_code_lookup = {", "\t},\n\n", "\t\t"); + fprint_uint16_table(file, state.dist_huff_code.long_code_lookup, + sizeof(state.dist_huff_code.long_code_lookup) / sizeof(uint16_t), + "\t.long_code_lookup = {", "\t}\n", "\t\t"); + fprintf(file, "};\n\n"); + + fprintf(file, "#endif\n"); + + // Add other tables for known dynamic headers - level 0 + + isal_inflate_init(&state); + + memcpy(in_buf, &hufftables_default.deflate_hdr, + sizeof(hufftables_default.deflate_hdr)); + state.next_in = in_buf; + state.avail_in = DOUBLE_SYM_THRESH + 1; + state.next_out = tmp_space; + state.avail_out = sizeof(tmp_space); + + isal_inflate(&state); + + fprintf(file, "struct inflate_huff_code_large pregen_lit_huff_code = {\n"); + fprint_uint32_table(file, state.lit_huff_code.short_code_lookup, + sizeof(state.lit_huff_code.short_code_lookup) / sizeof(uint32_t), + "\t.short_code_lookup = {", "\t},\n\n", "\t\t"); + fprint_uint16_table(file, state.lit_huff_code.long_code_lookup, + sizeof(state.lit_huff_code.long_code_lookup) / sizeof(uint16_t), + "\t.long_code_lookup = {", "\t}\n", "\t\t"); + fprintf(file, "};\n\n"); + + fprintf(file, "struct inflate_huff_code_small pregen_dist_huff_code = {\n"); + fprint_uint16_table(file, state.dist_huff_code.short_code_lookup, + sizeof(state.dist_huff_code.short_code_lookup) / sizeof(uint16_t), + "\t.short_code_lookup = {", "\t},\n\n", "\t\t"); + fprint_uint16_table(file, state.dist_huff_code.long_code_lookup, + sizeof(state.dist_huff_code.long_code_lookup) / sizeof(uint16_t), + "\t.long_code_lookup = {", "\t}\n", "\t\t"); + fprintf(file, "};\n\n"); + + fclose(file); + free(in_buf); + return 0; +} |