corrade-vassal – Rev 1
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/*
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2007, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux and 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"
#include <math.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 = int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W),
1) - 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 = int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S),
1) - 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 = int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W),
1) - 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 = int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S),
1) - 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;
}
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 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];
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 char 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 char 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 char 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] =
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] =
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] =
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] =
int_max(0,
(int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0));
}
printf("static short lut_nmsedec_sig[1 << T1_NMSEDEC_BITS] = {\n ");
dump_array16(lut_nmsedec_sig, 1 << T1_NMSEDEC_BITS);
printf("static short lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS] = {\n ");
dump_array16(lut_nmsedec_sig0, 1 << T1_NMSEDEC_BITS);
printf("static short lut_nmsedec_ref[1 << T1_NMSEDEC_BITS] = {\n ");
dump_array16(lut_nmsedec_ref, 1 << T1_NMSEDEC_BITS);
printf("static short lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS] = {\n ");
dump_array16(lut_nmsedec_ref0, 1 << T1_NMSEDEC_BITS);
return 0;
}