[Mesa-dev] [PATCH 2/5] u_format: Fix bitshifting for unpacking from 10F.

Eric Anholt eric at anholt.net
Wed Oct 26 16:46:56 PDT 2011


This code was copy and pasted from the 11F unpacking, but not updated
for actually being 10 bits instead of 11.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41206
---
 src/gallium/auxiliary/util/u_format_r11g11b10f.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_format_r11g11b10f.h b/src/gallium/auxiliary/util/u_format_r11g11b10f.h
index b1946f8..5c05b79 100644
--- a/src/gallium/auxiliary/util/u_format_r11g11b10f.h
+++ b/src/gallium/auxiliary/util/u_format_r11g11b10f.h
@@ -153,8 +153,8 @@ static INLINE float uf10_to_f32(uint16_t val)
       uint32_t ui;
    } f32;
 
-   int exponent = (val & 0x07c0) >> UF10_EXPONENT_SHIFT;
-   int mantissa = (val & 0x003f);
+   int exponent = (val & 0x03e0) >> UF10_EXPONENT_SHIFT;
+   int mantissa = (val & 0x001f);
 
    f32.f = 0.0;
 
-- 
1.7.7



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