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Do rounding in integer (instead of FIXFLOAT)

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Co-Authored-By: Bob-the-Kuhn <bob-the-kuhn@users.noreply.github.com>
This commit is contained in:
Scott Lahteine 2018-04-29 19:14:18 -05:00
parent 616651ff23
commit 63e4afc910
3 changed files with 110 additions and 113 deletions
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2
Marlin/src/core/macros.h
View file

@ -223,7 +223,7 @@
#define NEAR(x,y) NEAR_ZERO((x)-(y)) #define NEAR(x,y) NEAR_ZERO((x)-(y))
#define RECIPROCAL(x) (NEAR_ZERO(x) ? 0.0 : 1.0 / (x)) #define RECIPROCAL(x) (NEAR_ZERO(x) ? 0.0 : 1.0 / (x))
#define FIXFLOAT(f) (f + (f < 0.0 ? -0.00001 : 0.00001)) #define FIXFLOAT(f) (f + (f < 0.0 ? -0.00005 : 0.00005))
// //
// Maths macros that can be overridden by HAL // Maths macros that can be overridden by HAL

205
Marlin/src/core/utility.cpp
View file

@ -41,7 +41,7 @@ void safe_delay(millis_t ms) {
uint8_t *ptr = (uint8_t *)data; uint8_t *ptr = (uint8_t *)data;
while (cnt--) { while (cnt--) {
*crc = (uint16_t)(*crc ^ (uint16_t)(((uint16_t)*ptr++) << 8)); *crc = (uint16_t)(*crc ^ (uint16_t)(((uint16_t)*ptr++) << 8));
for (uint8_t x = 0; x < 8; x++) for (uint8_t i = 0; i < 8; i++)
*crc = (uint16_t)((*crc & 0x8000) ? ((uint16_t)(*crc << 1) ^ 0x1021) : (*crc << 1)); *crc = (uint16_t)((*crc & 0x8000) ? ((uint16_t)(*crc << 1) ^ 0x1021) : (*crc << 1));
} }
} }
@ -58,193 +58,190 @@ void safe_delay(millis_t ms) {
#define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-')) #define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-'))
// Convert unsigned int to string 123 format // Convert unsigned int to string 123 format
char* i8tostr3(const uint8_t xx) { char* i8tostr3(const uint8_t i) {
conv[4] = RJDIGIT(xx, 100); conv[4] = RJDIGIT(i, 100);
conv[5] = RJDIGIT(xx, 10); conv[5] = RJDIGIT(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[4]; return &conv[4];
} }
// Convert signed int to rj string with 123 or -12 format // Convert signed int to rj string with 123 or -12 format
char* itostr3(const int x) { char* itostr3(int i) {
int xx = x; conv[4] = MINUSOR(i, RJDIGIT(i, 100));
conv[4] = MINUSOR(xx, RJDIGIT(xx, 100)); conv[5] = RJDIGIT(i, 10);
conv[5] = RJDIGIT(xx, 10); conv[6] = DIGIMOD(i, 1);
conv[6] = DIGIMOD(xx, 1);
return &conv[4]; return &conv[4];
} }
// Convert unsigned int to lj string with 123 format // Convert unsigned int to lj string with 123 format
char* itostr3left(const int xx) { char* itostr3left(const int i) {
char *str = &conv[6]; char *str = &conv[6];
*str = DIGIMOD(xx, 1); *str = DIGIMOD(i, 1);
if (xx >= 10) { if (i >= 10) {
*(--str) = DIGIMOD(xx, 10); *(--str) = DIGIMOD(i, 10);
if (xx >= 100) if (i >= 100)
*(--str) = DIGIMOD(xx, 100); *(--str) = DIGIMOD(i, 100);
} }
return str; return str;
} }
// Convert signed int to rj string with 1234, _123, -123, _-12, or __-1 format // Convert signed int to rj string with 1234, _123, -123, _-12, or __-1 format
char* itostr4sign(const int x) { char* itostr4sign(const int i) {
const bool neg = x < 0; const bool neg = i < 0;
const int xx = neg ? -x : x; const int ii = neg ? -i : i;
if (x >= 1000) { if (i >= 1000) {
conv[3] = DIGIMOD(xx, 1000); conv[3] = DIGIMOD(ii, 1000);
conv[4] = DIGIMOD(xx, 100); conv[4] = DIGIMOD(ii, 100);
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(ii, 10);
} }
else { else if (ii >= 100) {
if (xx >= 100) {
conv[3] = neg ? '-' : ' '; conv[3] = neg ? '-' : ' ';
conv[4] = DIGIMOD(xx, 100); conv[4] = DIGIMOD(ii, 100);
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(ii, 10);
} }
else { else {
conv[3] = ' '; conv[3] = ' ';
conv[4] = ' '; conv[4] = ' ';
if (xx >= 10) { if (ii >= 10) {
conv[4] = neg ? '-' : ' '; conv[4] = neg ? '-' : ' ';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(ii, 10);
} }
else { else {
conv[5] = neg ? '-' : ' '; conv[5] = neg ? '-' : ' ';
} }
} }
} conv[6] = DIGIMOD(ii, 1);
conv[6] = DIGIMOD(xx, 1);
return &conv[3]; return &conv[3];
} }
// Convert unsigned float to string with 1.23 format // Convert unsigned float to string with 1.23 format
char* ftostr12ns(const float &x) { char* ftostr12ns(const float &f) {
const long xx = ((x < 0 ? -x : x) + 0.001) * 100; const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[3]; return &conv[3];
} }
// Convert signed float to fixed-length string with 023.45 / -23.45 format // Convert signed float to fixed-length string with 023.45 / -23.45 format
char* ftostr32(const float &x) { char* ftostr32(const float &f) {
long xx = FIXFLOAT(x) * 100; long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
conv[1] = MINUSOR(xx, DIGIMOD(xx, 10000)); conv[1] = MINUSOR(i, DIGIMOD(i, 10000));
conv[2] = DIGIMOD(xx, 1000); conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[1]; return &conv[1];
} }
#if ENABLED(LCD_DECIMAL_SMALL_XY) #if ENABLED(LCD_DECIMAL_SMALL_XY)
// Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format // Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format
char* ftostr4sign(const float &fx) { char* ftostr4sign(const float &f) {
const int x = FIXFLOAT(fx) * 10; const int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
if (!WITHIN(x, -99, 999)) return itostr4sign((int)fx); if (!WITHIN(i, -99, 999)) return itostr4sign((int)f);
const bool neg = x < 0; const bool neg = i < 0;
const int xx = neg ? -x : x; const int ii = neg ? -i : i;
conv[3] = neg ? '-' : (xx >= 100 ? DIGIMOD(xx, 100) : ' '); conv[3] = neg ? '-' : (ii >= 100 ? DIGIMOD(ii, 100) : ' ');
conv[4] = DIGIMOD(xx, 10); conv[4] = DIGIMOD(ii, 10);
conv[5] = '.'; conv[5] = '.';
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(ii, 1);
return &conv[3]; return &conv[3];
} }
#endif // LCD_DECIMAL_SMALL_XY #endif // LCD_DECIMAL_SMALL_XY
// Convert float to fixed-length string with +123.4 / -123.4 format // Convert float to fixed-length string with +123.4 / -123.4 format
char* ftostr41sign(const float &x) { char* ftostr41sign(const float &f) {
int xx = FIXFLOAT(x) * 10; int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
conv[1] = MINUSOR(xx, '+'); conv[1] = MINUSOR(i, '+');
conv[2] = DIGIMOD(xx, 1000); conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = DIGIMOD(xx, 10); conv[4] = DIGIMOD(i, 10);
conv[5] = '.'; conv[5] = '.';
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[1]; return &conv[1];
} }
// Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format // Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
char* ftostr43sign(const float &x, char plus/*=' '*/) { char* ftostr43sign(const float &f, char plus/*=' '*/) {
long xx = FIXFLOAT(x) * 1000; long i = (f * 10000 + (f < 0 ? -5: 5)) / 10;
conv[1] = xx ? MINUSOR(xx, plus) : ' '; conv[1] = i ? MINUSOR(i, plus) : ' ';
conv[2] = DIGIMOD(xx, 1000); conv[2] = DIGIMOD(i, 1000);
conv[3] = '.'; conv[3] = '.';
conv[4] = DIGIMOD(xx, 100); conv[4] = DIGIMOD(i, 100);
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[1]; return &conv[1];
} }
// Convert unsigned float to rj string with 12345 format // Convert unsigned float to rj string with 12345 format
char* ftostr5rj(const float &x) { char* ftostr5rj(const float &f) {
const long xx = x < 0 ? -x : x; const long i = ((f < 0 ? -f : f) * 10 + 5) / 10;
conv[2] = RJDIGIT(xx, 10000); conv[2] = RJDIGIT(i, 10000);
conv[3] = RJDIGIT(xx, 1000); conv[3] = RJDIGIT(i, 1000);
conv[4] = RJDIGIT(xx, 100); conv[4] = RJDIGIT(i, 100);
conv[5] = RJDIGIT(xx, 10); conv[5] = RJDIGIT(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return &conv[2]; return &conv[2];
} }
// Convert signed float to string with +1234.5 format // Convert signed float to string with +1234.5 format
char* ftostr51sign(const float &x) { char* ftostr51sign(const float &f) {
long xx = FIXFLOAT(x) * 10; long i = (f * 100 + (f < 0 ? -5: 5)) / 10;
conv[0] = MINUSOR(xx, '+'); conv[0] = MINUSOR(i, '+');
conv[1] = DIGIMOD(xx, 10000); conv[1] = DIGIMOD(i, 10000);
conv[2] = DIGIMOD(xx, 1000); conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = DIGIMOD(xx, 10); conv[4] = DIGIMOD(i, 10);
conv[5] = '.'; conv[5] = '.';
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return conv; return conv;
} }
// Convert signed float to string with +123.45 format // Convert signed float to string with +123.45 format
char* ftostr52sign(const float &x) { char* ftostr52sign(const float &f) {
long xx = FIXFLOAT(x) * 100; long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
conv[0] = MINUSOR(xx, '+'); conv[0] = MINUSOR(i, '+');
conv[1] = DIGIMOD(xx, 10000); conv[1] = DIGIMOD(i, 10000);
conv[2] = DIGIMOD(xx, 1000); conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return conv; return conv;
} }
// Convert unsigned float to string with 1234.56 format omitting trailing zeros // Convert unsigned float to string with 1234.56 format omitting trailing zeros
char* ftostr62rj(const float &x) { char* ftostr62rj(const float &f) {
const long xx = ((x < 0 ? -x : x) + 0.001) * 100; const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
conv[0] = RJDIGIT(xx, 100000); conv[0] = RJDIGIT(i, 100000);
conv[1] = RJDIGIT(xx, 10000); conv[1] = RJDIGIT(i, 10000);
conv[2] = RJDIGIT(xx, 1000); conv[2] = RJDIGIT(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(xx, 1); conv[6] = DIGIMOD(i, 1);
return conv; return conv;
} }
// Convert signed float to space-padded string with -_23.4_ format // Convert signed float to space-padded string with -_23.4_ format
char* ftostr52sp(const float &x) { char* ftostr52sp(const float &f) {
long xx = FIXFLOAT(x) * 100; long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
uint8_t dig; uint8_t dig;
conv[1] = MINUSOR(xx, RJDIGIT(xx, 10000)); conv[1] = MINUSOR(i, RJDIGIT(i, 10000));
conv[2] = RJDIGIT(xx, 1000); conv[2] = RJDIGIT(i, 1000);
conv[3] = DIGIMOD(xx, 100); conv[3] = DIGIMOD(i, 100);
if ((dig = xx % 10)) { // second digit after decimal point? if ((dig = i % 10)) { // second digit after decimal point?
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIMOD(xx, 10); conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIT(dig); conv[6] = DIGIT(dig);
} }
else { else {
if ((dig = (xx / 10) % 10)) { // first digit after decimal point? if ((dig = (i / 10) % 10)) { // first digit after decimal point?
conv[4] = '.'; conv[4] = '.';
conv[5] = DIGIT(dig); conv[5] = DIGIT(dig);
} }

4
Marlin/src/core/utility.h
View file

@ -87,14 +87,14 @@ void safe_delay(millis_t ms);
char* ftostr62rj(const float &x); char* ftostr62rj(const float &x);
// Convert float to rj string with 123 or -12 format // Convert float to rj string with 123 or -12 format
FORCE_INLINE char* ftostr3(const float &x) { return itostr3(int(FIXFLOAT(x))); } FORCE_INLINE char* ftostr3(const float &x) { return itostr3(int(x + (x < 0 ? -0.5 : 0.5))); }
#if ENABLED(LCD_DECIMAL_SMALL_XY) #if ENABLED(LCD_DECIMAL_SMALL_XY)
// Convert float to rj string with 1234, _123, 12.3, _1.2, -123, _-12, or -1.2 format // Convert float to rj string with 1234, _123, 12.3, _1.2, -123, _-12, or -1.2 format
char* ftostr4sign(const float &fx); char* ftostr4sign(const float &fx);
#else #else
// Convert float to rj string with 1234, _123, -123, __12, _-12, ___1, or __-1 format // Convert float to rj string with 1234, _123, -123, __12, _-12, ___1, or __-1 format
FORCE_INLINE char* ftostr4sign(const float &x) { return itostr4sign(int(FIXFLOAT(x))); } FORCE_INLINE char* ftostr4sign(const float &x) { return itostr4sign(int(x + (x < 0 ? -0.5 : 0.5))); }
#endif #endif
#endif // ULTRA_LCD #endif // ULTRA_LCD