#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 #include inline static float gdither_noise() { static uint32_t rnd = 23232323; rnd = (rnd * 196314165) + 907633515; return rnd * 2.3283064365387e-10f; } #endif