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ARMv6: vp8: fix stack allocation with Apple's assembler

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In the GNU assembler, a relational expression, bizarrely, has the
value -1 if true, whereas in Apple's it is +1.  This patch makes
sure the correct expression is used in both cases.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2012-08-02 23:18:08 +01:00
parent 9829a81bcd
commit e6cd698955
1 changed files with 7 additions and 1 deletions
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8
libavcodec/arm/vp8dsp_armv6.S
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@ -1226,7 +1226,13 @@ vp8_mc_1 bilin, 8, v
vp8_mc_1 bilin, 4, h
vp8_mc_1 bilin, 4, v
#define TMPSIZE \size * (8 - 8*(\size > 4) + \ytaps - 1)
/* True relational expressions have the value -1 in the GNU assembler,
+1 in Apple's. */
#ifdef __APPLE__
# define TMPSIZE \size * (8 + 8*(\size > 4) + \ytaps - 1)
#else
# define TMPSIZE \size * (8 - 8*(\size > 4) + \ytaps - 1)
#endif
.macro vp8_mc_hv name, size, h, v, ytaps
function ff_put_vp8_\name\size\()_\h\v\()_armv6, export=1