diff options
Diffstat (limited to 'libs/ardour/ardour/noise.h')
-rw-r--r-- | libs/ardour/ardour/noise.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libs/ardour/ardour/noise.h b/libs/ardour/ardour/noise.h new file mode 100644 index 0000000000..b06b02399b --- /dev/null +++ b/libs/ardour/ardour/noise.h @@ -0,0 +1,19 @@ +#ifndef NOISE_H +#define NOISE_H + +/* Can be overrriden with any code that produces whitenoise between 0.0f and + * 1.0f, eg (random() / (float)RAND_MAX) should be a good source of noise, but + * its expensive */ +#ifndef GDITHER_NOISE +#define GDITHER_NOISE gdither_noise() +#endif + +inline static float gdither_noise() +{ + static uint32_t rnd = 23232323; + rnd = (rnd * 196314165) + 907633515; + + return rnd * 2.3283064365387e-10f; +} + +#endif |