Module: Mesa
Branch: master
Commit: 732685175773e3fce2e72836264e2081978e16fb
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=732685175773e3fce2e72836264e2081978e16fb
Author: Luca Barbieri <l...@luca-barbieri.com>
Date: Thu Apr 1 06:17:10 2010 +0200
util/format: fix big endian compilation by not trying to byteswap single bytes
Conceivably, we could also have a dummy util_bswap8, but it seems better
to not emit it in the first place.
---
src/gallium/auxiliary/util/u_format_pack.py | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_format_pack.py
b/src/gallium/auxiliary/util/u_format_pack.py
index 95c0c79..90c1ae9 100644
--- a/src/gallium/auxiliary/util/u_format_pack.py
+++ b/src/gallium/auxiliary/util/u_format_pack.py
@@ -147,7 +147,7 @@ def generate_srgb_tables():
def bswap_format(format):
'''Generate a structure that describes the format.'''
- if format.is_bitmask() and not format.is_array():
+ if format.is_bitmask() and not format.is_array() and format.block_size() >
8:
print '#ifdef PIPE_ARCH_BIG_ENDIAN'
print ' pixel.value = util_bswap%u(pixel.value);' %
format.block_size()
print '#endif'
@@ -353,9 +353,10 @@ def generate_unpack_kernel(format, dst_channel,
dst_native_type):
elif src_channel.type == SIGNED:
print ' int%u_t %s;' % (depth, src_channel.name)
- print '#ifdef PIPE_ARCH_BIG_ENDIAN'
- print ' value = util_bswap%u(value);' % depth
- print '#endif'
+ if depth > 8:
+ print '#ifdef PIPE_ARCH_BIG_ENDIAN'
+ print ' value = util_bswap%u(value);' % depth
+ print '#endif'
# Compute the intermediate unshifted values
shift = 0
@@ -476,9 +477,10 @@ def generate_pack_kernel(format, src_channel,
src_native_type):
shift += dst_channel.size
- print '#ifdef PIPE_ARCH_BIG_ENDIAN'
- print ' value = util_bswap%u(value);' % depth
- print '#endif'
+ if depth > 8:
+ print '#ifdef PIPE_ARCH_BIG_ENDIAN'
+ print ' value = util_bswap%u(value);' % depth
+ print '#endif'
print ' *(uint%u_t *)dst = value;' % depth
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