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svg_loader util: code refactoring
fix for thorvg coding convention. no logical changes.
This commit is contained in:
Hermet Park
Hermet Park
parent
e6debdbf15
commit
5a6240bdf3
1 changed files with 76 additions and 117 deletions
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@ -71,194 +71,153 @@ static uint8_t _base64Value(const char chr)
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*/
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float svgUtilStrtof(const char *nPtr, char **endPtr)
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{
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const char *iter;
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const char *a;
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float val;
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unsigned long long integerPart;
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int minus;
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if (endPtr) *endPtr = (char*)nPtr;
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if (endPtr) *endPtr = (char*)(nPtr);
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if (!nPtr) return 0.0f;
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a = iter = nPtr;
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auto a = nPtr;
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auto iter = nPtr;
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auto val = 0.0f;
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unsigned long long integerPart = 0;
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int minus = 1;
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//ignore leading whitespaces
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while (isspace(*iter)) iter++;
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//signed or not
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minus = 1;
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if (*iter == '-')
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{
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if (*iter == '-') {
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minus = -1;
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iter++;
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} else if (*iter == '+') {
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iter++;
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}
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else if (*iter == '+') iter++;
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if (tolower(*iter) == 'i')
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{
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if ((tolower(*(iter + 1)) == 'n') && (tolower(*(iter + 2)) == 'f'))
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{
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iter += 3;
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if (tolower(*iter) == 'i') {
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if ((tolower(*(iter + 1)) == 'n') && (tolower(*(iter + 2)) == 'f')) iter += 3;
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else goto error;
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if (tolower(*(iter + 3)) == 'i') {
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if ((tolower(*(iter + 4)) == 'n') && (tolower(*(iter + 5)) == 'i') && (tolower(*(iter + 6)) == 't') && (tolower(*(iter + 7)) == 'y')) iter += 5;
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else goto error;
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}
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else goto on_error;
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if (tolower(*(iter + 3)) == 'i')
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{
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if ((tolower(*(iter + 4)) == 'n') &&
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(tolower(*(iter + 5)) == 'i') &&
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(tolower(*(iter + 6)) == 't') &&
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(tolower(*(iter + 7)) == 'y'))
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{
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iter += 5;
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}
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else goto on_error;
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}
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if (endPtr) *endPtr = (char *)iter;
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return (minus == -1) ? -INFINITY : INFINITY;
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if (endPtr) *endPtr = (char *)(iter);
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return (minus == -1) ? -INFINITY : INFINITY;
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}
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if (tolower(*iter) == 'n')
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{
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if ((tolower(*(iter + 1)) == 'a') && (tolower(*(iter + 2)) == 'n')) iter += 3;
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else goto on_error;
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if (tolower(*iter) == 'n') {
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if ((tolower(*(iter + 1)) == 'a') && (tolower(*(iter + 2)) == 'n')) iter += 3;
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else goto error;
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if (endPtr) *endPtr = (char *)iter;
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return (minus == -1) ? -NAN : NAN;
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if (endPtr) *endPtr = (char *)(iter);
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return (minus == -1) ? -NAN : NAN;
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}
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integerPart = 0;
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//(optional) integer part before dot
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if (isdigit(*iter))
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{
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for (; isdigit(*iter); iter++) integerPart = integerPart * 10ULL + (unsigned long long)(*iter - '0');
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//Optional: integer part before dot
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if (isdigit(*iter)) {
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for (; isdigit(*iter); iter++) {
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integerPart = integerPart * 10ULL + (unsigned long long)(*iter - '0');
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}
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a = iter;
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}
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else if (*iter != '.')
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{
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val = 0.0;
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goto on_success;
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} else if (*iter != '.') {
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goto success;
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}
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val = (float)integerPart;
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val = static_cast<float>(integerPart);
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//(optional) decimal part after dot
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if (*iter == '.')
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{
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unsigned long long decimalPart;
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unsigned long long pow10;
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int count;
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//Optional: decimal part after dot
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if (*iter == '.') {
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unsigned long long decimalPart = 0;
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unsigned long long pow10 = 1;
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int count = 0;
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iter++;
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decimalPart = 0;
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count = 0;
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pow10 = 1;
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if (isdigit(*iter))
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{
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for (; isdigit(*iter); iter++, count++)
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{
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if (count < 19)
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{
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decimalPart = decimalPart * 10ULL + + (unsigned long long)(*iter - '0');
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if (isdigit(*iter)) {
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for (; isdigit(*iter); iter++, count++) {
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if (count < 19) {
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decimalPart = decimalPart * 10ULL + + static_cast<unsigned long long>(*iter - '0');
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pow10 *= 10ULL;
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}
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}
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}
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val += (float)decimalPart / (float)pow10;
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val += static_cast<float>(decimalPart) / static_cast<float>(pow10);
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a = iter;
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}
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//(optional) exponent
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if ((*iter == 'e') || (*iter == 'E'))
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{
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float scale = 1.0f;
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unsigned int expo_part;
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int minus_e;
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//Optional: exponent
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if (*iter == 'e' || *iter == 'E') {
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++iter;
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//Exception: svg may have 'em' unit for fonts. ex) 5em, 10.5em
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if ((*iter == 'm') || (*iter == 'M')) {
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//TODO: We don't support font em unit now, but has to multiply val * font size later...
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a = iter + 1;
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goto on_success;
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goto success;
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}
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//signed or not
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minus_e = 1;
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if (*iter == '-')
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{
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int minus_e = 1;
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if (*iter == '-') {
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minus_e = -1;
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++iter;
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} else if (*iter == '+') {
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iter++;
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}
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else if (*iter == '+') iter++;
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//exponential part
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expo_part = 0;
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if (isdigit(*iter))
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{
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unsigned int exponetPart = 0;
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if (isdigit(*iter)) {
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while (*iter == 0) iter++;
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for (; isdigit(*iter); iter++)
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{
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expo_part = expo_part * 10U + (unsigned int)(*iter - '0');
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for (; isdigit(*iter); iter++) {
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exponetPart = exponetPart * 10U + static_cast<unsigned int>(*iter - '0');
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}
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}
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else if (!isdigit(*(a - 1)))
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{
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} else if (!isdigit(*(a - 1))) {
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a = nPtr;
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goto on_success;
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goto success;
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} else if (*iter == 0) {
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goto success;
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}
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else if (*iter == 0) goto on_success;
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if ((_floatExact(val, 2.2250738585072011f)) && ((minus_e * (int)expo_part) == -308))
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{
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if ((_floatExact(val, 2.2250738585072011f)) && ((minus_e * static_cast<int>(exponetPart)) == -308)) {
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val *= 1.0e-308f;
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a = iter;
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errno = ERANGE;
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goto on_success;
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goto success;
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}
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if ((_floatExact(val, 2.2250738585072012f)) && ((minus_e * (int)expo_part) <= -308))
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{
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if ((_floatExact(val, 2.2250738585072012f)) && ((minus_e * static_cast<int>(exponetPart)) <= -308)) {
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val *= 1.0e-308f;
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a = iter;
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goto on_success;
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goto success;
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}
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a = iter;
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auto scale = 1.0f;
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while (expo_part >= 8U)
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{
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while (exponetPart >= 8U) {
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scale *= 1E8;
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expo_part -= 8U;
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exponetPart -= 8U;
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}
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while (expo_part > 0U)
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{
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while (exponetPart > 0U) {
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scale *= 10.0f;
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expo_part--;
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exponetPart--;
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}
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val = (minus_e == -1) ? (val / scale) : (val * scale);
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}
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else if ((iter > nPtr) && !isdigit(*(iter - 1)))
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{
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} else if ((iter > nPtr) && !isdigit(*(iter - 1))) {
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a = nPtr;
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goto on_success;
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goto success;
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}
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on_success:
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if (endPtr) *endPtr = (char *)a;
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success:
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if (endPtr) *endPtr = (char*)(a);
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return minus * val;
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on_error:
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if (endPtr) *endPtr = (char *)nPtr;
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error:
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if (endPtr) *endPtr = (char*)(nPtr);
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return 0.0f;
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}
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string svgUtilURLDecode(const char *src)
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{
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if (!src) return nullptr;
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@ -286,6 +245,7 @@ string svgUtilURLDecode(const char *src)
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return decoded;
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}
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string svgUtilBase64Decode(const char *src)
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{
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if (!src) return nullptr;
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@ -316,5 +276,4 @@ string svgUtilBase64Decode(const char *src)
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src += 4;
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}
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return decoded;
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}
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}
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