imgproc: use C++11 std::atomic in color_hsv.simd.hpp #22050
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rogday
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May 30, 2022
| if (!initialized.load(std::memory_order_acquire)) | ||
| #else | ||
| if (!initialized) | ||
| #endif | ||
| { | ||
| sdiv_table[0] = hdiv_table180[0] = hdiv_table256[0] = 0; |
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I think it's a data race to write the values from different threads to one memory location, even if these values are the same. It might be better to create a struct with those tables and perform calculations in constructor. Then just create static variable of that type and c++11 will guarantee that the initialization is thread-safe.
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successor of #21948