Mesa (master): u_format: Fix bitshifting for unpacking from 10F.

Eric Anholt anholt at kemper.freedesktop.org
Fri Oct 28 12:10:34 PDT 2011


Module: Mesa
Branch: master
Commit: 3d7477206d7a345eb53df5c1288a5b34e83bc2d8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3d7477206d7a345eb53df5c1288a5b34e83bc2d8

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Oct 25 16:53:00 2011 -0700

u_format: Fix bitshifting for unpacking from 10F.

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
Reviewed-by: Marek Ol ák <maraeo at gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 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;
 



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