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1 #ifndef SkColor_opts_neon_DEFINED | 1 #ifndef SkColor_opts_neon_DEFINED |
2 #define SkColor_opts_neon_DEFINED | 2 #define SkColor_opts_neon_DEFINED |
3 | 3 |
4 #include "SkTypes.h" | 4 #include "SkTypes.h" |
5 | 5 |
6 #include <arm_neon.h> | 6 #include <arm_neon.h> |
7 | 7 |
8 #define NEON_A (SK_A32_SHIFT / 8) | 8 #define NEON_A (SK_A32_SHIFT / 8) |
9 #define NEON_R (SK_R32_SHIFT / 8) | 9 #define NEON_R (SK_R32_SHIFT / 8) |
10 #define NEON_G (SK_G32_SHIFT / 8) | 10 #define NEON_G (SK_G32_SHIFT / 8) |
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22 uint8x8x4_t ret; | 22 uint8x8x4_t ret; |
23 | 23 |
24 ret.val[NEON_A] = SkAlphaMul_neon8(color.val[NEON_A], scale); | 24 ret.val[NEON_A] = SkAlphaMul_neon8(color.val[NEON_A], scale); |
25 ret.val[NEON_R] = SkAlphaMul_neon8(color.val[NEON_R], scale); | 25 ret.val[NEON_R] = SkAlphaMul_neon8(color.val[NEON_R], scale); |
26 ret.val[NEON_G] = SkAlphaMul_neon8(color.val[NEON_G], scale); | 26 ret.val[NEON_G] = SkAlphaMul_neon8(color.val[NEON_G], scale); |
27 ret.val[NEON_B] = SkAlphaMul_neon8(color.val[NEON_B], scale); | 27 ret.val[NEON_B] = SkAlphaMul_neon8(color.val[NEON_B], scale); |
28 | 28 |
29 return ret; | 29 return ret; |
30 } | 30 } |
31 | 31 |
| 32 /* This function expands 8 pixels from RGB565 (R, G, B from high to low) to |
| 33 * SkPMColor (all possible configurations supported) in the exact same way as |
| 34 * SkPixel16ToPixel32. |
| 35 */ |
| 36 static inline uint8x8x4_t SkPixel16ToPixel32_neon8(uint16x8_t vsrc) { |
| 37 |
| 38 uint8x8x4_t ret; |
| 39 uint8x8_t vr, vg, vb; |
| 40 |
| 41 vr = vmovn_u16(vshrq_n_u16(vsrc, SK_R16_SHIFT)); |
| 42 vg = vmovn_u16(vshrq_n_u16(vshlq_n_u16(vsrc, SK_R16_BITS), SK_R16_BITS + SK_
B16_BITS)); |
| 43 vb = vmovn_u16(vsrc & vdupq_n_u16(SK_B16_MASK)); |
| 44 |
| 45 ret.val[NEON_A] = vdup_n_u8(0xFF); |
| 46 ret.val[NEON_R] = vshl_n_u8(vr, 8 - SK_R16_BITS) | vshr_n_u8(vr, 2 * SK_R16_
BITS - 8); |
| 47 ret.val[NEON_G] = vshl_n_u8(vg, 8 - SK_G16_BITS) | vshr_n_u8(vg, 2 * SK_G16_
BITS - 8); |
| 48 ret.val[NEON_B] = vshl_n_u8(vb, 8 - SK_B16_BITS) | vshr_n_u8(vb, 2 * SK_B16_
BITS - 8); |
| 49 |
| 50 return ret; |
| 51 } |
| 52 |
| 53 /* This function packs 8 pixels from SkPMColor (all possible configurations |
| 54 * supported) to RGB565 (R, G, B from high to low) in the exact same way as |
| 55 * SkPixel32ToPixel16. |
| 56 */ |
| 57 static inline uint16x8_t SkPixel32ToPixel16_neon8(uint8x8x4_t vsrc) { |
| 58 |
| 59 uint16x8_t ret; |
| 60 |
| 61 ret = vshll_n_u8(vsrc.val[NEON_R], 8); |
| 62 ret = vsriq_n_u16(ret, vshll_n_u8(vsrc.val[NEON_G], 8), SK_R16_BITS); |
| 63 ret = vsriq_n_u16(ret, vshll_n_u8(vsrc.val[NEON_B], 8), SK_R16_BITS + SK_G16
_BITS); |
| 64 |
| 65 return ret; |
| 66 } |
| 67 |
32 #endif /* #ifndef SkColor_opts_neon_DEFINED */ | 68 #endif /* #ifndef SkColor_opts_neon_DEFINED */ |
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