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DATAMATRIX/DBAR_LTD: some hacks to get around MSVC 2015/2019 x64 optimizer bugs

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gitlost
2021-06-27 15:58:27 +01:00
parent 52c00e59ba
commit 8c419ab4fb
3 changed files with 49 additions and 41 deletions
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50
backend/code1.c
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@@ -152,6 +152,7 @@ static int c1_look_ahead_test(const unsigned char source[], const int sourcelen,
const int current_mode, const int gs1) {
float ascii_count, c40_count, text_count, edi_count, byte_count;
int ascii_rnded, c40_rnded, text_rnded, edi_rnded, byte_rnded;
float cnt_1;
int sp;
/* Step J1 */
@@ -181,12 +182,14 @@ static int c1_look_ahead_test(const unsigned char source[], const int sourcelen,
}
for (sp = position; sp < sourcelen; sp++) {
unsigned char c = source[sp];
int is_extended = c & 0x80;
/* Step L */
if ((source[sp] >= '0') && (source[sp] <= '9')) {
if ((c >= '0') && (c <= '9')) {
ascii_count += 0.5f; /* Step L1 */
} else {
if (source[sp] > 127) {
if (is_extended) {
ascii_count = ceilf(ascii_count) + 2.0f; /* Step L2 */
} else {
ascii_count = ceilf(ascii_count) + 1.0f; /* Step L3 */
@@ -194,34 +197,34 @@ static int c1_look_ahead_test(const unsigned char source[], const int sourcelen,
}
/* Step M */
if (isc40(source[sp])) {
if (isc40(c)) {
c40_count += (2.0f / 3.0f); /* Step M1 */
} else if (source[sp] > 127) {
} else if (is_extended) {
c40_count += (8.0f / 3.0f); /* Step M2 */
} else {
c40_count += (4.0f / 3.0f); /* Step M3 */
}
/* Step N */
if (istext(source[sp])) {
if (istext(c)) {
text_count += (2.0f / 3.0f); /* Step N1 */
} else if (source[sp] > 127) {
} else if (is_extended) {
text_count += (8.0f / 3.0f); /* Step N2 */
} else {
text_count += (4.0f / 3.0f); /* Step N3 */
}
/* Step O */
if (isedi(source[sp])) {
if (isedi(c)) {
edi_count += (2.0f / 3.0f); /* Step O1 */
} else if (source[sp] > 127) {
} else if (is_extended) {
edi_count += (13.0f / 3.0f); /* Step O2 */
} else {
edi_count += (10.0f / 3.0f); /* Step O3 */
}
/* Step P */
if (gs1 && (source[sp] == '[')) {
if (gs1 && (c == '[')) {
byte_count += 3.0f; /* Step P1 */
} else {
byte_count += 1.0f; /* Step P2 */
@@ -232,27 +235,26 @@ static int c1_look_ahead_test(const unsigned char source[], const int sourcelen,
BWIPP also uses 4 (cf very similar Data Matrix ISO/IEC 16022:2006 Annex P algorithm) */
if (sp >= position + 3) {
/* Step Q */
float cnt;
ascii_rnded = (int) ceilf(stripf(ascii_count));
c40_rnded = (int) ceilf(stripf(c40_count));
text_rnded = (int) ceilf(stripf(text_count));
edi_rnded = (int) ceilf(stripf(edi_count));
byte_rnded = (int) ceilf(stripf(byte_count));
cnt = byte_count + 1.0f;
if (cnt <= ascii_rnded && cnt <= c40_rnded && cnt <= text_rnded && cnt <= edi_rnded) {
cnt_1 = byte_count + 1.0f;
if (cnt_1 <= ascii_rnded && cnt_1 <= c40_rnded && cnt_1 <= text_rnded && cnt_1 <= edi_rnded) {
return C1_BYTE; /* Step Q1 */
}
cnt = ascii_count + 1.0f;
if (cnt <= c40_rnded && cnt <= text_rnded && cnt <= edi_rnded && cnt <= byte_rnded) {
cnt_1 = ascii_count + 1.0f;
if (cnt_1 <= c40_rnded && cnt_1 <= text_rnded && cnt_1 <= edi_rnded && cnt_1 <= byte_rnded) {
return C1_ASCII; /* Step Q2 */
}
cnt = text_rnded + 1.0f;
if (cnt <= ascii_rnded && cnt <= c40_rnded && cnt <= edi_rnded && cnt <= byte_rnded) {
cnt_1 = text_rnded + 1.0f;
if (cnt_1 <= ascii_rnded && cnt_1 <= c40_rnded && cnt_1 <= edi_rnded && cnt_1 <= byte_rnded) {
return C1_TEXT; /* Step Q3 */
}
cnt = c40_rnded + 1.0f;
if (cnt <= ascii_rnded && cnt <= text_rnded) {
cnt_1 = c40_rnded + 1.0f;
if (cnt_1 <= ascii_rnded && cnt_1 <= text_rnded) {
/* Step Q4 */
if (c40_rnded < edi_rnded) {
return C1_C40; /* Step Q4a */
@@ -265,8 +267,8 @@ static int c1_look_ahead_test(const unsigned char source[], const int sourcelen,
return C1_C40; /* Step Q4bii */
}
}
cnt = edi_rnded + 1.0f;
if (cnt <= ascii_rnded && cnt <= c40_rnded && cnt <= text_rnded && cnt <= byte_rnded) {
cnt_1 = edi_rnded + 1.0f;
if (cnt_1 <= ascii_rnded && cnt_1 <= c40_rnded && cnt_1 <= text_rnded && cnt_1 <= byte_rnded) {
return C1_EDI; /* Step Q5 */
}
}
@@ -433,7 +435,7 @@ static int c40text_cnt(const int current_mode, const int gs1, unsigned char inpu
return 2;
}
cnt = 1;
if (input > 127) {
if (input & 0x80) {
cnt += 2;
input = input - 128;
}
@@ -577,7 +579,7 @@ static int c1_encode(struct zint_symbol *symbol, unsigned char source[], unsigne
if (next_mode == C1_ASCII) {
if (debug_print) printf("ASCII ");
if (source[sp] > 127) {
if (source[sp] & 0x80) {
/* Step B7 */
target[tp++] = 235; /* FNC4 (Upper Shift) */
target[tp++] = (source[sp] - 128) + 1;
@@ -627,7 +629,7 @@ static int c1_encode(struct zint_symbol *symbol, unsigned char source[], unsigne
}
if (debug_print) printf(current_mode == C1_C40 ? "C40 " : "TEXT ");
if (source[sp] > 127) {
if (source[sp] & 0x80) {
cte_buffer[cte_p++] = 1; /* Shift 2 */
cte_buffer[cte_p++] = 30; /* FNC4 (Upper Shift) */
if (ct_shift[source[sp] - 128]) {
@@ -824,7 +826,7 @@ static int c1_encode(struct zint_symbol *symbol, unsigned char source[], unsigne
if (istwodigits(source, length, sp)) {
target[tp++] = (10 * ctoi(source[sp])) + ctoi(source[sp + 1]) + 130;
sp++;
} else if (source[sp] > 127) {
} else if (source[sp] & 0x80) {
target[tp++] = 235; /* FNC4 (Upper Shift) */
target[tp++] = (source[sp] - 128) + 1;
} else if ((gs1) && (source[sp] == '[')) {