MINLINE void linearrgb_to_srgb_ushort4(unsigned short srgb[4], const float linear[4]) { srgb[0] = to_srgb_table_lookup(linear[0]); srgb[1] = to_srgb_table_lookup(linear[1]); srgb[2] = to_srgb_table_lookup(linear[2]); srgb[3] = FTOUSHORT(linear[3]); }
MINLINE void linearrgb_to_srgb_ushort4_predivide(unsigned short srgb[4], const float linear[4]) { float alpha, inv_alpha, t; int i; if (linear[3] == 1.0f || linear[3] == 0.0f) { linearrgb_to_srgb_ushort4(srgb, linear); return; } alpha = linear[3]; inv_alpha = 1.0f / alpha; for (i = 0; i < 3; ++i) { t = linear[i] * inv_alpha; srgb[i] = (t < 1.0f) ? (unsigned short) (to_srgb_table_lookup(t) * alpha) : FTOUSHORT(linearrgb_to_srgb(t) * alpha); } srgb[3] = FTOUSHORT(linear[3]); }