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| author | Chris Robinson <chris.kcat@gmail.com> | 2020-04-01 23:17:46 -0700 |
|---|---|---|
| committer | Chris Robinson <chris.kcat@gmail.com> | 2020-04-02 00:49:19 -0700 |
| commit | 8853519d896f11b678873f0afacac16b3cdebc27 (patch) | |
| tree | 319fd5c5a5978e7790bbd22844c9e218b2bbe10e /common/bsinc_tables.h | |
| parent | 6fb59f1182965a0e1e45d60e81e3ff02db45944c (diff) | |
Generate the bsinc tables using constexpr methods
All the methods used should be compliant with C++14 constexpr rules. However,
the number of scales and phases cause GenerateBSincCoeffs to reach the allowed
step limit, preventing full compile-time generation. It's not a terribly big
deal, it'll generate them very quickly when loading, but it does prevent using
shared read-only memory pages.
Diffstat (limited to 'common/bsinc_tables.h')
| -rw-r--r-- | common/bsinc_tables.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/common/bsinc_tables.h b/common/bsinc_tables.h new file mode 100644 index 00000000..2e2443e5 --- /dev/null +++ b/common/bsinc_tables.h @@ -0,0 +1,17 @@ +#ifndef BSINC_TABLES_H +#define BSINC_TABLES_H + +#include "bsinc_defs.h" + + +struct BSincTable { + float scaleBase, scaleRange; + unsigned int m[BSINC_SCALE_COUNT]; + unsigned int filterOffset[BSINC_SCALE_COUNT]; + const float *Tab; +}; + +extern const BSincTable bsinc12; +extern const BSincTable bsinc24; + +#endif /* BSINC_TABLES_H */ |