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WIP vj_sprintf and disable v2 arm memcpy/memset

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veejay
2023-09-17 23:20:58 +02:00
parent 17050f9b26
commit f73e11ac19
1 changed files with 47 additions and 2 deletions
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49
veejay-current/veejay-core/libvjmem/memcpy.c
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@@ -1805,7 +1805,7 @@ static struct {
#endif
#ifdef HAVE_ARM_ASIMD
{ "Advanced SIMD ARMv8-A memcpy()", (void*) memcpy_asimd, 0, AV_CPU_FLAG_ARMV8 },
{ "Advanced SIMD ARMv8-A memcpy v2()", (void*) memcpy_asimdv2, 0, AV_CPU_FLAG_ARMV8 },
// { "Advanced SIMD ARMv8-A memcpy v2()", (void*) memcpy_asimdv2, 0, AV_CPU_FLAG_ARMV8 },
#endif
#ifdef HAVE_ARMV7A
{ "new mempcy for cortex with line size of 32, preload offset of 192 (C) Harm Hanemaaijer <fgenfb@yahoo.com>", (void*) memcpy_new_line_size_32_preload_192,0,0 },
@@ -1840,7 +1840,7 @@ static struct {
#endif
#ifdef HAVE_ARM_ASIMD
{ "Advanced SIMD memset()", (void*) memset_asimd, 0, AV_CPU_FLAG_ARMV8 },
{ "Advanced SIMD memset() v2", (void*) memset_asimd_v2, 0, AV_CPU_FLAG_ARMV8 },
// { "Advanced SIMD memset() v2", (void*) memset_asimd_v2, 0, AV_CPU_FLAG_ARMV8 },
#endif
#ifdef HAVE_ARM7A
@@ -2485,6 +2485,50 @@ static const char digit_pairs[201] = {
// https://stackoverflow.com/questions/4351371/c-performance-challenge-integer-to-stdstring-conversion
// fast int to string function by user434507
// modified to append a space at the end instead of null-terminator
char *vj_sprintf(char* c, int n) {
int sign = (n < 0);
unsigned int val = (n ^ sign) - sign;
int size = 0;
if (val == 0) {
*c++ = '0';
*c++ = ' ';
return c;
}
while (val > 0) {
*c++ = '0' + (val % 10);
val /= 10;
size++;
}
if (sign) {
*c++ = '-';
size++;
}
int spaces = 12 - size;
while (spaces-- > 0) {
*c++ = ' ';
}
char *start = c - size - (sign ? 1 : 0);
char *end = c - 1;
while (start < end) {
char temp = *start;
*start = *end;
*end = temp;
start++;
end--;
}
return c;
}
/*
char *vj_sprintf(char* c, int n) {
int sign = -(n<0);
unsigned int val = (n^sign)-sign;
@@ -2556,3 +2600,4 @@ char *vj_sprintf(char* c, int n) {
return c + size + 2;
}
*/