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| author |  rmistry@google.com <rmistry@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2013-12-02 13:50:38 +0000 |
|---|---|---|
| committer | rmistry@google.com <rmistry@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2013-12-02 13:50:38 +0000 |
| commit | d6bab0238655dbab24dfe92bd0b16b464310a8c7 (patch) | |
| tree | 664de29dd3b91a1ed1be463f2cd797e871cabec7 /src/opts/SkColor_opts_neon.h | |
| parent | 5b39f5ba9c339d1e4dae391fee9ec1396feec180 (diff) | |
Reverting r12427
git-svn-id: http://skia.googlecode.com/svn/trunk@12428 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src/opts/SkColor_opts_neon.h')
| -rw-r--r-- | src/opts/SkColor_opts_neon.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/opts/SkColor_opts_neon.h b/src/opts/SkColor_opts_neon.h index f81239712a..85752f5558 100644 --- a/src/opts/SkColor_opts_neon.h +++ b/src/opts/SkColor_opts_neon.h @@ -2,6 +2,7 @@ #define SkColor_opts_neon_DEFINED #include "SkTypes.h" +#include "SkColorPriv.h" #include <arm_neon.h> @@ -65,4 +66,20 @@ static inline uint16x8_t SkPixel32ToPixel16_neon8(uint8x8x4_t vsrc) { return ret; } +/* This function blends 8 pixels of the same channel in the exact same way as + * SkBlend32. + */ +static inline uint8x8_t SkBlend32_neon8(uint8x8_t src, uint8x8_t dst, uint16x8_t scale) { + int16x8_t src_wide, dst_wide; + + src_wide = vreinterpretq_s16_u16(vmovl_u8(src)); + dst_wide = vreinterpretq_s16_u16(vmovl_u8(dst)); + + src_wide = (src_wide - dst_wide) * vreinterpretq_s16_u16(scale); + + dst_wide += vshrq_n_s16(src_wide, 5); + + return vmovn_u16(vreinterpretq_u16_s16(dst_wide)); +} + #endif /* #ifndef SkColor_opts_neon_DEFINED */ |