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util/format: fix big endian compilation by not trying to byteswap single bytes

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Conceivably, we could also have a dummy util_bswap8, but it seems better
to not emit it in the first place.
This commit is contained in:
Luca Barbieri 2010-04-01 06:17:10 +02:00
parent 2fb655d1db
commit 7326851757
1 changed files with 9 additions and 7 deletions
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16
src/gallium/auxiliary/util/u_format_pack.py
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@ -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