diff options
author | Timo Rothenpieler <timo@rothenpieler.org> | 2022-09-03 19:49:53 +0200 |
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committer | Timo Rothenpieler <timo@rothenpieler.org> | 2022-09-03 20:27:34 +0200 |
commit | 416923346a6d31563801784963d2893a8d1da1c8 (patch) | |
tree | 330563edbcea9367c81872ec2432cebfb8c5e6ba /libavfilter | |
parent | 73fada029c527fda6c248785a948c61249fd4b2d (diff) |
compat/cuda: switch from powf to __powf intrinsic
The powf builtin causes crashes on older clang, so manually implement
the (faster) intrinsic.
The code it spawns is identical to that of nvcc.
Diffstat (limited to 'libavfilter')
-rw-r--r-- | libavfilter/vf_bilateral_cuda.cu | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavfilter/vf_bilateral_cuda.cu b/libavfilter/vf_bilateral_cuda.cu index 8aba3a079f..bbcfc81db5 100644 --- a/libavfilter/vf_bilateral_cuda.cu +++ b/libavfilter/vf_bilateral_cuda.cu @@ -34,9 +34,9 @@ extern "C" __device__ static inline float norm_squared(float4 first_yuv, float4 second_yuv) { float ans = 0; - ans += powf(first_yuv.x - second_yuv.x, 2); - ans += powf(first_yuv.y - second_yuv.y, 2); - ans += powf(first_yuv.z - second_yuv.z, 2); + ans += __powf(first_yuv.x - second_yuv.x, 2); + ans += __powf(first_yuv.y - second_yuv.y, 2); + ans += __powf(first_yuv.z - second_yuv.z, 2); return ans; } @@ -52,7 +52,7 @@ __device__ static inline float calculate_w(int x, int y, int r, int c, float sigma_space, float sigma_color) { float first_term, second_term; - first_term = (powf(x - r, 2) + powf(y - c, 2)) / (2 * sigma_space * sigma_space); + first_term = (__powf(x - r, 2) + __powf(y - c, 2)) / (2 * sigma_space * sigma_space); second_term = norm_squared(pixel_value, neighbor_value) / (2 * sigma_color * sigma_color); return __expf(-first_term - second_term); } |