diff options
| -rw-r--r-- | source/blender/blenkernel/intern/dynamicpaint.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/source/blender/blenkernel/intern/dynamicpaint.c b/source/blender/blenkernel/intern/dynamicpaint.c index 24425720bd2..51bc5fcc475 100644 --- a/source/blender/blenkernel/intern/dynamicpaint.c +++ b/source/blender/blenkernel/intern/dynamicpaint.c @@ -4779,6 +4779,8 @@ static void dynamic_paint_effect_drip_cb(void *userdata, const int index) return; CLAMP(w_factor, 0.0f, 1.0f); + float ppoint_wetness_diff = 0.0f; + /* get force affect points */ surface_determineForceTargetPoints(sData, index, &force[index * 4], closest_d, closest_id); @@ -4800,9 +4802,9 @@ static void dynamic_paint_effect_drip_cb(void *userdata, const int index) /* Sort of spinlock, but only for given ePoint. * Since the odds a same ePoint is modified at the same time by several threads is very low, this is * much more efficient than a global spin lock. */ - const unsigned int pointlock_idx = n_trgt / 8; - const uint8_t pointlock_bitmask = 1 << (n_trgt & 7); /* 7 == 0b111 */ - while (atomic_fetch_and_or_uint8(&point_locks[pointlock_idx], pointlock_bitmask) & pointlock_bitmask); + const unsigned int epointlock_idx = n_trgt / 8; + const uint8_t epointlock_bitmask = 1 << (n_trgt & 7); /* 7 == 0b111 */ + while (atomic_fetch_and_or_uint8(&point_locks[epointlock_idx], epointlock_bitmask) & epointlock_bitmask); PaintPoint *ePoint = &((PaintPoint *)sData->type_data)[n_trgt]; const float e_wet = ePoint->wetness; @@ -4823,18 +4825,38 @@ static void dynamic_paint_effect_drip_cb(void *userdata, const int index) CLAMP_MAX(ePoint->e_color[3], pPoint_prev->e_color[3]); } - /* decrease paint wetness on current point */ - pPoint->wetness -= (ePoint->wetness - e_wet); - CLAMP(pPoint->wetness, 0.0f, MAX_WETNESS); + /* Decrease paint wetness on current point + * (just store diff here, that way we can only lock current point once at the end to apply it). */ + ppoint_wetness_diff += (ePoint->wetness - e_wet); #ifndef NDEBUG - uint8_t ret = atomic_fetch_and_and_uint8(&point_locks[pointlock_idx], ~pointlock_bitmask); - BLI_assert(ret & pointlock_bitmask); + { + uint8_t ret = atomic_fetch_and_and_uint8(&point_locks[epointlock_idx], ~epointlock_bitmask); + BLI_assert(ret & epointlock_bitmask); + } #else - atomic_fetch_and_and_uint8(&point_locks[pointlock_idx], ~pointlock_bitmask); + atomic_fetch_and_and_uint8(&point_locks[epointlock_idx], ~epointlock_bitmask); #endif } } + + { + const unsigned int ppointlock_idx = index / 8; + const uint8_t ppointlock_bitmask = 1 << (index & 7); /* 7 == 0b111 */ + while (atomic_fetch_and_or_uint8(&point_locks[ppointlock_idx], ppointlock_bitmask) & ppointlock_bitmask); + + pPoint->wetness -= ppoint_wetness_diff; + CLAMP(pPoint->wetness, 0.0f, MAX_WETNESS); + +#ifndef NDEBUG + { + uint8_t ret = atomic_fetch_and_and_uint8(&point_locks[ppointlock_idx], ~ppointlock_bitmask); + BLI_assert(ret & ppointlock_bitmask); + } +#else + atomic_fetch_and_and_uint8(&point_locks[ppointlock_idx], ~ppointlock_bitmask); +#endif + } } static void dynamicPaint_doEffectStep( |