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Merge pull request #420 from lovell/premultiply-bands-4 

Ensure premultiply fast-path for RGBA is used
This commit is contained in:
John Cupitt 2016-04-11 21:55:02 +01:00
parent d46a57cf6b 90780d96b8
commit 263b93aaea
1 changed files with 3 additions and 3 deletions
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6
libvips/conversion/premultiply.c
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@ -87,7 +87,7 @@ G_DEFINE_TYPE( VipsPremultiply, vips_premultiply, VIPS_TYPE_CONVERSION );
/* Special case for RGBA, it's very common. /* Special case for RGBA, it's very common.
*/ */
#define PRE_RGB( IN, OUT ) { \ #define PRE_RGBA( IN, OUT ) { \
IN * restrict p = (IN *) in; \ IN * restrict p = (IN *) in; \
OUT * restrict q = (OUT *) out; \ OUT * restrict q = (OUT *) out; \
\ \
@ -107,8 +107,8 @@ G_DEFINE_TYPE( VipsPremultiply, vips_premultiply, VIPS_TYPE_CONVERSION );
} }
#define PRE( IN, OUT ) { \ #define PRE( IN, OUT ) { \
if( bands == 3 ) { \ if( bands == 4 ) { \
PRE_RGB( IN, OUT ); \ PRE_RGBA( IN, OUT ); \
} \ } \
else { \ else { \
PRE_MANY( IN, OUT ); \ PRE_MANY( IN, OUT ); \