static void FilterS16N (audio_mixer_t *mixer, block_t *block, float volume)
{
- const int32_t mult = volume * 0x10000;
+ int32_t mult = volume * 0x1.p16;
if (mult == 0x10000)
return;
int16_t *p = (int16_t *)block->p_buffer;
- for (size_t n = block->i_buffer / sizeof (*p); n > 0; n--)
+ if (mult < 0x10000)
{
- *p = (*p * mult) >> 16;
- p++;
+ for (size_t n = block->i_buffer / sizeof (*p); n > 0; n--)
+ {
+ *p = (*p * mult) >> 16;
+ p++;
+ }
+ }
+ else
+ {
+ mult >>= 4;
+ for (size_t n = block->i_buffer / sizeof (*p); n > 0; n--)
+ {
+ int32_t v = (*p * mult) >> 12;
+ if (abs (v) > 0x7fff)
+ v = 0x8000;
+ *(p++) = v;
+ }
}
(void) mixer;