diff options
Diffstat (limited to 'core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/t1_generate_luts.c')
| -rw-r--r-- | core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/t1_generate_luts.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/t1_generate_luts.c b/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/t1_generate_luts.c new file mode 100644 index 0000000000..1997d39977 --- /dev/null +++ b/core/src/fxcodec/fx_libopenjpeg/libopenjpeg20/t1_generate_luts.c @@ -0,0 +1,282 @@ +/* + * The copyright in this software is being made available under the 2-clauses + * BSD License, included below. This software may be subject to other third + * party and contributor rights, including patent rights, and no such rights + * are granted under this license. + * + * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium + * Copyright (c) 2002-2014, Professor Benoit Macq + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2007, Francois-Olivier Devaux + * Copyright (c) 2003-2014, Antonin Descampe + * Copyright (c) 2005, Herve Drolon, FreeImage Team + * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * 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 "opj_includes.h" + +static int t1_init_ctxno_zc(int f, int orient) { + int h, v, d, n, t, hv; + n = 0; + h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0); + v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0); + d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0); + + switch (orient) { + case 2: + t = h; + h = v; + v = t; + case 0: + case 1: + if (!h) { + if (!v) { + if (!d) + n = 0; + else if (d == 1) + n = 1; + else + n = 2; + } else if (v == 1) { + n = 3; + } else { + n = 4; + } + } else if (h == 1) { + if (!v) { + if (!d) + n = 5; + else + n = 6; + } else { + n = 7; + } + } else + n = 8; + break; + case 3: + hv = h + v; + if (!d) { + if (!hv) { + n = 0; + } else if (hv == 1) { + n = 1; + } else { + n = 2; + } + } else if (d == 1) { + if (!hv) { + n = 3; + } else if (hv == 1) { + n = 4; + } else { + n = 5; + } + } else if (d == 2) { + if (!hv) { + n = 6; + } else { + n = 7; + } + } else { + n = 8; + } + break; + } + + return (T1_CTXNO_ZC + n); +} + +static int t1_init_ctxno_sc(int f) { + int hc, vc, n; + n = 0; + + hc = opj_int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - opj_int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = opj_int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - opj_int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (hc < 0) { + hc = -hc; + vc = -vc; + } + if (!hc) { + if (vc == -1) + n = 1; + else if (!vc) + n = 0; + else + n = 1; + } else if (hc == 1) { + if (vc == -1) + n = 2; + else if (!vc) + n = 3; + else + n = 4; + } + + return (T1_CTXNO_SC + n); +} + +static int t1_init_spb(int f) { + int hc, vc, n; + + hc = opj_int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - opj_int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = opj_int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - opj_int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (!hc && !vc) + n = 0; + else + n = (!(hc > 0 || (!hc && vc > 0))); + + return n; +} + +static void dump_array16(int array[],int size){ + int i; + --size; + for (i = 0; i < size; ++i) { + printf("0x%04x, ", array[i]); + if(!((i+1)&0x7)) + printf("\n "); + } + printf("0x%04x\n};\n\n", array[size]); +} + +int main(int argc, char **argv) +{ + int i, j; + double u, v, t; + + int lut_ctxno_zc[1024]; + int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS]; + int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS]; + int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS]; + int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS]; + (void)argc; (void)argv; + + printf("/* This file was automatically generated by t1_generate_luts.c */\n\n"); + + /* lut_ctxno_zc */ + for (j = 0; j < 4; ++j) { + for (i = 0; i < 256; ++i) { + int orient = j; + if (orient == 2) { + orient = 1; + } else if (orient == 1) { + orient = 2; + } + lut_ctxno_zc[(orient << 8) | i] = t1_init_ctxno_zc(i, j); + } + } + + printf("static OPJ_BYTE lut_ctxno_zc[1024] = {\n "); + for (i = 0; i < 1023; ++i) { + printf("%i, ", lut_ctxno_zc[i]); + if(!((i+1)&0x1f)) + printf("\n "); + } + printf("%i\n};\n\n", lut_ctxno_zc[1023]); + + /* lut_ctxno_sc */ + printf("static OPJ_BYTE lut_ctxno_sc[256] = {\n "); + for (i = 0; i < 255; ++i) { + printf("0x%x, ", t1_init_ctxno_sc(i << 4)); + if(!((i+1)&0xf)) + printf("\n "); + } + printf("0x%x\n};\n\n", t1_init_ctxno_sc(255 << 4)); + + /* lut_spb */ + printf("static OPJ_BYTE lut_spb[256] = {\n "); + for (i = 0; i < 255; ++i) { + printf("%i, ", t1_init_spb(i << 4)); + if(!((i+1)&0x1f)) + printf("\n "); + } + printf("%i\n};\n\n", t1_init_spb(255 << 4)); + + /* FIXME FIXME FIXME */ + /* fprintf(stdout,"nmsedec luts:\n"); */ + for (i = 0; i < (1 << T1_NMSEDEC_BITS); ++i) { + t = i / pow(2, T1_NMSEDEC_FRACBITS); + u = t; + v = t - 1.5; + lut_nmsedec_sig[i] = + opj_int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + lut_nmsedec_sig0[i] = + opj_int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + u = t - 1.0; + if (i & (1 << (T1_NMSEDEC_BITS - 1))) { + v = t - 1.5; + } else { + v = t - 0.5; + } + lut_nmsedec_ref[i] = + opj_int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + lut_nmsedec_ref0[i] = + opj_int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + } + + printf("static OPJ_INT16 lut_nmsedec_sig[1 << T1_NMSEDEC_BITS] = {\n "); + dump_array16(lut_nmsedec_sig, 1 << T1_NMSEDEC_BITS); + + printf("static OPJ_INT16 lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS] = {\n "); + dump_array16(lut_nmsedec_sig0, 1 << T1_NMSEDEC_BITS); + + printf("static OPJ_INT16 lut_nmsedec_ref[1 << T1_NMSEDEC_BITS] = {\n "); + dump_array16(lut_nmsedec_ref, 1 << T1_NMSEDEC_BITS); + + printf("static OPJ_INT16 lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS] = {\n "); + dump_array16(lut_nmsedec_ref0, 1 << T1_NMSEDEC_BITS); + + return 0; +} |