diff options
Diffstat (limited to 'src/pcm/Traits.hxx')
| -rw-r--r-- | src/pcm/Traits.hxx | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/pcm/Traits.hxx b/src/pcm/Traits.hxx index 7212b2dd6..0ec4aaf0a 100644 --- a/src/pcm/Traits.hxx +++ b/src/pcm/Traits.hxx @@ -51,6 +51,13 @@ struct SampleTraits<SampleFormat::S8> { typedef const value_type *const_pointer_type; /** + * A "long" type that is large and accurate enough for adding + * two values without risking an (integer) overflow or + * (floating point) precision loss. + */ + typedef int sum_type; + + /** * A "long" type that is large and accurate enough for * arithmetic without risking an (integer) overflow or * (floating point) precision loss. @@ -75,6 +82,7 @@ struct SampleTraits<SampleFormat::S16> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int_least32_t sum_type; typedef int_least32_t long_type; static constexpr size_t SAMPLE_SIZE = sizeof(value_type); @@ -87,6 +95,7 @@ struct SampleTraits<SampleFormat::S32> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int_least64_t sum_type; typedef int_least64_t long_type; static constexpr size_t SAMPLE_SIZE = sizeof(value_type); @@ -99,6 +108,7 @@ struct SampleTraits<SampleFormat::S24_P32> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int_least32_t sum_type; typedef int_least64_t long_type; static constexpr size_t SAMPLE_SIZE = sizeof(value_type); @@ -111,6 +121,7 @@ struct SampleTraits<SampleFormat::FLOAT> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef float sum_type; typedef float long_type; static constexpr size_t SAMPLE_SIZE = sizeof(value_type); |