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#include <tinyff/stream.h>
#include <tinyff/dbg.h>
#include <stdarg.h>
#include <stdint.h>
#ifdef USE_THREAD
#include <pthread.h>
#endif
static size_t ff_internal_itoa(int value, char* buf)
{
char temp[12];
size_t i = 0, j = 0;
if (value == 0) {
buf[0] = '0';
return 1;
}
unsigned int uvalue;
if (value < 0) {
buf[j++] = '-';
uvalue = (unsigned int)(-(long)value);
} else {
uvalue = (unsigned int)value;
}
while (uvalue > 0) {
temp[i++] = (uvalue % 10) + '0';
uvalue /= 10;
}
while (i > 0) {
buf[j++] = temp[--i];
}
return j;
}
ff_result ff_set_debug_stream(ff_stream* stream, ff_ctx* ctx)
{
if (!ctx) return FF_RESULT_ERROR_NULL_PTR;
if (stream) {
ctx->ff_debug_stream = *stream;
ctx->ff_debug_enabled = true;
} else {
ctx->ff_debug_enabled = false;
}
return FF_RESULT_OK;
}
static inline void ff_debug_flush(ff_ctx* ctx, char* buffer, size_t* idx)
{
if (*idx == 0) return;
#ifdef USE_THREAD
pthread_mutex_lock(&ctx->ff_lock);
#endif
ctx->ff_debug_stream.write(
buffer,
*idx,
ctx->ff_debug_stream.user
);
*idx = 0;
#ifdef USE_THREAD
pthread_mutex_unlock(&ctx->ff_lock);
#endif
}
ff_result ff_dprintf(ff_ctx* ctx, const char *format, ...)
{
if (!ctx || !ctx->ff_debug_enabled || !ctx->ff_debug_stream.write) {
return FF_RESULT_WARN_DEBUG_DISABLED;
}
va_list args;
va_start(args, format);
char buffer[512];
size_t buf_idx = 0;
const char* p = format;
#ifdef USE_THREAD
pthread_mutex_lock(&ctx->ff_lock);
#endif
while (*p) {
if (buf_idx >= sizeof(buffer) - 64) {
ff_debug_flush(ctx, buffer, &buf_idx);
}
if (*p == '%') {
p++;
if (!*p) break;
if (*p == 's') {
const char* s = va_arg(args, const char*);
if (!s) s = "(null)";
while (*s) {
buffer[buf_idx++] = *s++;
if (buf_idx >= sizeof(buffer)) {
ff_debug_flush(ctx, buffer, &buf_idx);
}
}
}
else if (*p == 'd') {
int d = va_arg(args, int);
buf_idx += ff_internal_itoa(d, &buffer[buf_idx]);
}
else if (*p == 'u') {
unsigned int u = va_arg(args, unsigned int);
buf_idx += ff_internal_itoa((int)u, &buffer[buf_idx]);
}
else if (*p == 'l' && *(p + 1) == 'd') {
long d = va_arg(args, long);
buf_idx += ff_internal_itoa((int)d, &buffer[buf_idx]);
p++;
}
else if (*p == 'f') {
double f = va_arg(args, double);
if (f < 0) {
buffer[buf_idx++] = '-';
f = -f;
}
int whole = (int)f;
double frac = f - whole;
buf_idx += ff_internal_itoa(whole, &buffer[buf_idx]);
buffer[buf_idx++] = '.';
for (int i = 0; i < 3; i++) {
frac *= 10.0;
int digit = (int)frac;
buffer[buf_idx++] = '0' + digit;
frac -= digit;
}
}
else if (*p == 'c') {
buffer[buf_idx++] = (char)va_arg(args, int);
}
else if (*p == '%') {
buffer[buf_idx++] = '%';
}
else {
buffer[buf_idx++] = '%';
buffer[buf_idx++] = *p;
}
}
else {
buffer[buf_idx++] = *p;
}
p++;
}
ff_debug_flush(ctx, buffer, &buf_idx);
#ifdef USE_THREAD
pthread_mutex_unlock(&ctx->ff_lock);
#endif
va_end(args);
return FF_RESULT_OK;
}
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