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Alterations based on feedback from Wang Yi

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This commit is contained in:
Robin Stuart 2016-10-27 12:35:53 +01:00
parent eecad5e43f
commit 5402264ad9
1 changed files with 12 additions and 13 deletions
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25
backend/hanxin.c
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@ -644,7 +644,8 @@ void calculate_binary(char binary[], char mode[], int source[], int length, int
/* Terminator */
strcat(binary, "111111111111111");
/* Terminator sequence of length 12 is assumed to be a mistake */
/* Terminator sequence of length 12 is a mistake
- confirmed by Wang Yi */
if (debug) {
printf("\n");
@ -1030,7 +1031,7 @@ void make_picket_fence(unsigned char fullstream[], unsigned char picket_fence[],
/* Evaluate a bitmask according to table 9 */
int hx_evaluate(unsigned char *eval, int size, int pattern) {
int x, y, i, block, weight;
int x, y, block, weight;
int result = 0;
char state;
int p;
@ -1151,47 +1152,45 @@ int hx_evaluate(unsigned char *eval, int size, int pattern) {
/* In AIMD-15 section 5.8.3.2 it is stated... “In Table 9 below, i refers to the row
* position of the module.” - however i being the length of the run of the
* same colour (i.e. "block" below) in the same fashion as ISO/IEC 18004
* makes more sense. The implementation below matches AIMD-015.*/
* makes more sense. -- Confirmed by Wang Yi */
/* Vertical */
for (x = 0; x < size; x++) {
state = local[x];
block = 0;
for (y = 0; y < size; y++) {
i = y + 1;
if (local[(y * size) + x] == state) {
block++;
} else {
if (block > (3 + i)) {
result += (3 + i) * 4;
if (block > 3) {
result += (3 + block) * 4;
}
block = 0;
state = local[(y * size) + x];
}
}
if (block > (3 + i)) {
result += (3 + i) * 4;
if (block > 3) {
result += (3 + block) * 4;
}
}
/* Horizontal */
for (y = 0; y < size; y++) {
i = y + 1;
state = local[y * size];
block = 0;
for (x = 0; x < size; x++) {
if (local[(y * size) + x] == state) {
block++;
} else {
if (block > (3 + i)) {
result += (3 + i) * 4;
if (block > 3) {
result += (3 + block) * 4;
}
block = 0;
state = local[(y * size) + x];
}
}
if (block > (3 + i)) {
result += (3 + i) * 4;
if (block > 3) {
result += (3 + block) * 4;
}
}