| /* |
| * 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> |
| * Copyright (c) 2012, Carl Hetherington |
| * 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(OPJ_UINT32 f, OPJ_UINT32 orient) |
| { |
| int h, v, d, n, t, hv; |
| n = 0; |
| h = ((f & T1_SIGMA_3) != 0) + ((f & T1_SIGMA_5) != 0); |
| v = ((f & T1_SIGMA_1) != 0) + ((f & T1_SIGMA_7) != 0); |
| d = ((f & T1_SIGMA_0) != 0) + ((f & T1_SIGMA_2) != 0) + (( |
| f & T1_SIGMA_8) != 0) + ((f & T1_SIGMA_6) != 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(OPJ_UINT32 f) |
| { |
| int hc, vc, n; |
| n = 0; |
| |
| hc = opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == |
| T1_LUT_SIG_E) + ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == T1_LUT_SIG_W), |
| 1) - opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == |
| (T1_LUT_SIG_E | T1_LUT_SGN_E)) + |
| ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == |
| (T1_LUT_SIG_W | T1_LUT_SGN_W)), 1); |
| |
| vc = opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == |
| T1_LUT_SIG_N) + ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == T1_LUT_SIG_S), |
| 1) - opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == |
| (T1_LUT_SIG_N | T1_LUT_SGN_N)) + |
| ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == |
| (T1_LUT_SIG_S | T1_LUT_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(OPJ_UINT32 f) |
| { |
| int hc, vc, n; |
| |
| hc = opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == |
| T1_LUT_SIG_E) + ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == T1_LUT_SIG_W), |
| 1) - opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == |
| (T1_LUT_SIG_E | T1_LUT_SGN_E)) + |
| ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == |
| (T1_LUT_SIG_W | T1_LUT_SGN_W)), 1); |
| |
| vc = opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == |
| T1_LUT_SIG_N) + ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == T1_LUT_SIG_S), |
| 1) - opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == |
| (T1_LUT_SIG_N | T1_LUT_SGN_N)) + |
| ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == |
| (T1_LUT_SIG_S | T1_LUT_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 "); |
| } else { |
| printf(" "); |
| } |
| } |
| printf("0x%04x\n};\n\n", array[size]); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| unsigned int i, j; |
| double u, v, t; |
| |
| int lut_ctxno_zc[2048]; |
| 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 < 512; ++i) { |
| OPJ_UINT32 orient = j; |
| if (orient == 2) { |
| orient = 1; |
| } else if (orient == 1) { |
| orient = 2; |
| } |
| lut_ctxno_zc[(orient << 9) | i] = t1_init_ctxno_zc(i, j); |
| } |
| } |
| |
| printf("static const OPJ_BYTE lut_ctxno_zc[2048] = {\n "); |
| for (i = 0; i < 2047; ++i) { |
| printf("%i,", lut_ctxno_zc[i]); |
| if (!((i + 1) & 0x1f)) { |
| printf("\n "); |
| } else { |
| printf(" "); |
| } |
| } |
| printf("%i\n};\n\n", lut_ctxno_zc[2047]); |
| |
| /* lut_ctxno_sc */ |
| printf("static const OPJ_BYTE lut_ctxno_sc[256] = {\n "); |
| for (i = 0; i < 255; ++i) { |
| printf("0x%x,", t1_init_ctxno_sc(i)); |
| if (!((i + 1) & 0xf)) { |
| printf("\n "); |
| } else { |
| printf(" "); |
| } |
| } |
| printf("0x%x\n};\n\n", t1_init_ctxno_sc(255)); |
| |
| /* lut_spb */ |
| printf("static const OPJ_BYTE lut_spb[256] = {\n "); |
| for (i = 0; i < 255; ++i) { |
| printf("%i,", t1_init_spb(i)); |
| if (!((i + 1) & 0x1f)) { |
| printf("\n "); |
| } else { |
| printf(" "); |
| } |
| } |
| printf("%i\n};\n\n", t1_init_spb(255)); |
| |
| /* FIXME FIXME FIXME */ |
| /* fprintf(stdout,"nmsedec luts:\n"); */ |
| for (i = 0U; i < (1U << 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 const OPJ_INT16 lut_nmsedec_sig[1U << T1_NMSEDEC_BITS] = {\n "); |
| dump_array16(lut_nmsedec_sig, 1U << T1_NMSEDEC_BITS); |
| |
| printf("static const OPJ_INT16 lut_nmsedec_sig0[1U << T1_NMSEDEC_BITS] = {\n "); |
| dump_array16(lut_nmsedec_sig0, 1U << T1_NMSEDEC_BITS); |
| |
| printf("static const OPJ_INT16 lut_nmsedec_ref[1U << T1_NMSEDEC_BITS] = {\n "); |
| dump_array16(lut_nmsedec_ref, 1U << T1_NMSEDEC_BITS); |
| |
| printf("static const OPJ_INT16 lut_nmsedec_ref0[1U << T1_NMSEDEC_BITS] = {\n "); |
| dump_array16(lut_nmsedec_ref0, 1U << T1_NMSEDEC_BITS); |
| |
| return 0; |
| } |
