diff options
Diffstat (limited to 'intern/cycles/util')
| -rw-r--r-- | intern/cycles/util/image.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/intern/cycles/util/image.h b/intern/cycles/util/image.h index 9348125d072..17446a83e59 100644 --- a/intern/cycles/util/image.h +++ b/intern/cycles/util/image.h @@ -78,6 +78,26 @@ template<> inline half util_image_cast_from_float(float value) return float_to_half_image(value); } +/* Multiply image pixels in native data format. */ +template<typename T> inline T util_image_multiply_native(T a, T b); + +template<> inline float util_image_multiply_native(float a, float b) +{ + return a * b; +} +template<> inline uchar util_image_multiply_native(uchar a, uchar b) +{ + return ((uint32_t)a * (uint32_t)b) / 255; +} +template<> inline uint16_t util_image_multiply_native(uint16_t a, uint16_t b) +{ + return ((uint32_t)a * (uint32_t)b) / 65535; +} +template<> inline half util_image_multiply_native(half a, half b) +{ + return float_to_half_image(half_to_float_image(a) * half_to_float_image(b)); +} + CCL_NAMESPACE_END #endif /* __UTIL_IMAGE_H__ */ |