diff options
| author | Jason Ekstrand <[email protected]> | 2017-06-22 20:00:47 -0700 |
|---|---|---|
| committer | Nanley Chery <[email protected]> | 2018-04-24 13:41:14 -0700 |
| commit | b55077a8bc1e85400b43141f9ed4a1f4a322b420 (patch) | |
| tree | 3c95d662b9e0060a3301b46ad9d805b095c23130 /src/util/format_srgb.h | |
| parent | cd5ce363e3fcf975c05a5f325292e95df8322cfb (diff) | |
util/srgb: Add a float sRGB -> linear helper
Reviewed-by: Nanley Chery <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/util/format_srgb.h')
| -rw-r--r-- | src/util/format_srgb.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/util/format_srgb.h b/src/util/format_srgb.h index 34b50afe3d1..596af56f4cd 100644 --- a/src/util/format_srgb.h +++ b/src/util/format_srgb.h @@ -55,6 +55,20 @@ util_format_linear_to_srgb_helper_table[104]; static inline float +util_format_srgb_to_linear_float(float cs) +{ + if (cs <= 0.0f) + return 0.0f; + else if (cs <= 0.04045f) + return cs / 12.92f; + else if (cs < 1.0f) + return powf((cs + 0.055) / 1.055f, 2.4f); + else + return 1.0f; +} + + +static inline float util_format_linear_to_srgb_float(float cl) { if (cl <= 0.0f) |