From: Jason Ekstrand <[email protected]>
Reviewed-by: Nanley Chery <[email protected]>
---
src/util/format_srgb.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
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
@@ -54,6 +54,20 @@ extern const unsigned
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)
{
--
2.16.2
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