| #include "SkXfermode.h" |
| #include "SkXfermode_proccoeff.h" |
| #include "SkColorPriv.h" |
| |
| #include <arm_neon.h> |
| #include "SkColor_opts_neon.h" |
| #include "SkXfermode_opts_arm_neon.h" |
| |
| #define SkAlphaMulAlpha(a, b) SkMulDiv255Round(a, b) |
| |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // NEONized skia functions |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| static inline uint8x8_t SkAlphaMulAlpha_neon8(uint8x8_t color, uint8x8_t alpha) { |
| uint16x8_t tmp; |
| uint8x8_t ret; |
| |
| tmp = vmull_u8(color, alpha); |
| tmp = vaddq_u16(tmp, vdupq_n_u16(128)); |
| tmp = vaddq_u16(tmp, vshrq_n_u16(tmp, 8)); |
| |
| ret = vshrn_n_u16(tmp, 8); |
| |
| return ret; |
| } |
| |
| static inline uint16x8_t SkAlphaMulAlpha_neon8_16(uint8x8_t color, uint8x8_t alpha) { |
| uint16x8_t ret; |
| |
| ret = vmull_u8(color, alpha); |
| ret = vaddq_u16(ret, vdupq_n_u16(128)); |
| ret = vaddq_u16(ret, vshrq_n_u16(ret, 8)); |
| |
| ret = vshrq_n_u16(ret, 8); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t SkDiv255Round_neon8_32_8(int32x4_t p1, int32x4_t p2) { |
| uint16x8_t tmp; |
| |
| #ifdef SK_CPU_ARM64 |
| tmp = vmovn_high_u32(vmovn_u32(vreinterpretq_u32_s32(p1)), |
| vreinterpretq_u32_s32(p2)); |
| #else |
| tmp = vcombine_u16(vmovn_u32(vreinterpretq_u32_s32(p1)), |
| vmovn_u32(vreinterpretq_u32_s32(p2))); |
| #endif |
| |
| tmp += vdupq_n_u16(128); |
| tmp += vshrq_n_u16(tmp, 8); |
| |
| return vshrn_n_u16(tmp, 8); |
| } |
| |
| static inline uint16x8_t SkDiv255Round_neon8_16_16(uint16x8_t prod) { |
| prod += vdupq_n_u16(128); |
| prod += vshrq_n_u16(prod, 8); |
| |
| return vshrq_n_u16(prod, 8); |
| } |
| |
| static inline uint8x8_t clamp_div255round_simd8_32(int32x4_t val1, int32x4_t val2) { |
| uint8x8_t ret; |
| uint32x4_t cmp1, cmp2; |
| uint16x8_t cmp16; |
| uint8x8_t cmp8, cmp8_1; |
| |
| // Test if <= 0 |
| cmp1 = vcleq_s32(val1, vdupq_n_s32(0)); |
| cmp2 = vcleq_s32(val2, vdupq_n_s32(0)); |
| #ifdef SK_CPU_ARM64 |
| cmp16 = vmovn_high_u32(vmovn_u32(cmp1), cmp2); |
| #else |
| cmp16 = vcombine_u16(vmovn_u32(cmp1), vmovn_u32(cmp2)); |
| #endif |
| cmp8_1 = vmovn_u16(cmp16); |
| |
| // Init to zero |
| ret = vdup_n_u8(0); |
| |
| // Test if >= 255*255 |
| cmp1 = vcgeq_s32(val1, vdupq_n_s32(255*255)); |
| cmp2 = vcgeq_s32(val2, vdupq_n_s32(255*255)); |
| #ifdef SK_CPU_ARM64 |
| cmp16 = vmovn_high_u32(vmovn_u32(cmp1), cmp2); |
| #else |
| cmp16 = vcombine_u16(vmovn_u32(cmp1), vmovn_u32(cmp2)); |
| #endif |
| cmp8 = vmovn_u16(cmp16); |
| |
| // Insert 255 where true |
| ret = vbsl_u8(cmp8, vdup_n_u8(255), ret); |
| |
| // Calc SkDiv255Round |
| uint8x8_t div = SkDiv255Round_neon8_32_8(val1, val2); |
| |
| // Insert where false and previous test false |
| cmp8 = cmp8 | cmp8_1; |
| ret = vbsl_u8(cmp8, ret, div); |
| |
| // Return the final combination |
| return ret; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // 1 pixel modeprocs |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| // kSrcATop_Mode, //!< [Da, Sc * Da + (1 - Sa) * Dc] |
| SkPMColor srcatop_modeproc_neon(SkPMColor src, SkPMColor dst) { |
| unsigned sa = SkGetPackedA32(src); |
| unsigned da = SkGetPackedA32(dst); |
| unsigned isa = 255 - sa; |
| |
| uint8x8_t vda, visa, vsrc, vdst; |
| |
| vda = vdup_n_u8(da); |
| visa = vdup_n_u8(isa); |
| |
| uint16x8_t vsrc_wide, vdst_wide; |
| vsrc_wide = vmull_u8(vda, vreinterpret_u8_u32(vdup_n_u32(src))); |
| vdst_wide = vmull_u8(visa, vreinterpret_u8_u32(vdup_n_u32(dst))); |
| |
| vsrc_wide += vdupq_n_u16(128); |
| vsrc_wide += vshrq_n_u16(vsrc_wide, 8); |
| |
| vdst_wide += vdupq_n_u16(128); |
| vdst_wide += vshrq_n_u16(vdst_wide, 8); |
| |
| vsrc = vshrn_n_u16(vsrc_wide, 8); |
| vdst = vshrn_n_u16(vdst_wide, 8); |
| |
| vsrc += vdst; |
| vsrc = vset_lane_u8(da, vsrc, 3); |
| |
| return vget_lane_u32(vreinterpret_u32_u8(vsrc), 0); |
| } |
| |
| // kDstATop_Mode, //!< [Sa, Sa * Dc + Sc * (1 - Da)] |
| SkPMColor dstatop_modeproc_neon(SkPMColor src, SkPMColor dst) { |
| unsigned sa = SkGetPackedA32(src); |
| unsigned da = SkGetPackedA32(dst); |
| unsigned ida = 255 - da; |
| |
| uint8x8_t vsa, vida, vsrc, vdst; |
| |
| vsa = vdup_n_u8(sa); |
| vida = vdup_n_u8(ida); |
| |
| uint16x8_t vsrc_wide, vdst_wide; |
| vsrc_wide = vmull_u8(vida, vreinterpret_u8_u32(vdup_n_u32(src))); |
| vdst_wide = vmull_u8(vsa, vreinterpret_u8_u32(vdup_n_u32(dst))); |
| |
| vsrc_wide += vdupq_n_u16(128); |
| vsrc_wide += vshrq_n_u16(vsrc_wide, 8); |
| |
| vdst_wide += vdupq_n_u16(128); |
| vdst_wide += vshrq_n_u16(vdst_wide, 8); |
| |
| vsrc = vshrn_n_u16(vsrc_wide, 8); |
| vdst = vshrn_n_u16(vdst_wide, 8); |
| |
| vsrc += vdst; |
| vsrc = vset_lane_u8(sa, vsrc, 3); |
| |
| return vget_lane_u32(vreinterpret_u32_u8(vsrc), 0); |
| } |
| |
| // kXor_Mode [Sa + Da - 2 * Sa * Da, Sc * (1 - Da) + (1 - Sa) * Dc] |
| SkPMColor xor_modeproc_neon(SkPMColor src, SkPMColor dst) { |
| unsigned sa = SkGetPackedA32(src); |
| unsigned da = SkGetPackedA32(dst); |
| unsigned ret_alpha = sa + da - (SkAlphaMulAlpha(sa, da) << 1); |
| unsigned isa = 255 - sa; |
| unsigned ida = 255 - da; |
| |
| uint8x8_t vsrc, vdst, visa, vida; |
| uint16x8_t vsrc_wide, vdst_wide; |
| |
| visa = vdup_n_u8(isa); |
| vida = vdup_n_u8(ida); |
| vsrc = vreinterpret_u8_u32(vdup_n_u32(src)); |
| vdst = vreinterpret_u8_u32(vdup_n_u32(dst)); |
| |
| vsrc_wide = vmull_u8(vsrc, vida); |
| vdst_wide = vmull_u8(vdst, visa); |
| |
| vsrc_wide += vdupq_n_u16(128); |
| vsrc_wide += vshrq_n_u16(vsrc_wide, 8); |
| |
| vdst_wide += vdupq_n_u16(128); |
| vdst_wide += vshrq_n_u16(vdst_wide, 8); |
| |
| vsrc = vshrn_n_u16(vsrc_wide, 8); |
| vdst = vshrn_n_u16(vdst_wide, 8); |
| |
| vsrc += vdst; |
| |
| vsrc = vset_lane_u8(ret_alpha, vsrc, 3); |
| |
| return vget_lane_u32(vreinterpret_u32_u8(vsrc), 0); |
| } |
| |
| // kPlus_Mode |
| SkPMColor plus_modeproc_neon(SkPMColor src, SkPMColor dst) { |
| uint8x8_t vsrc, vdst; |
| vsrc = vreinterpret_u8_u32(vdup_n_u32(src)); |
| vdst = vreinterpret_u8_u32(vdup_n_u32(dst)); |
| vsrc = vqadd_u8(vsrc, vdst); |
| |
| return vget_lane_u32(vreinterpret_u32_u8(vsrc), 0); |
| } |
| |
| // kModulate_Mode |
| SkPMColor modulate_modeproc_neon(SkPMColor src, SkPMColor dst) { |
| uint8x8_t vsrc, vdst, vres; |
| uint16x8_t vres_wide; |
| |
| vsrc = vreinterpret_u8_u32(vdup_n_u32(src)); |
| vdst = vreinterpret_u8_u32(vdup_n_u32(dst)); |
| |
| vres_wide = vmull_u8(vsrc, vdst); |
| |
| vres_wide += vdupq_n_u16(128); |
| vres_wide += vshrq_n_u16(vres_wide, 8); |
| |
| vres = vshrn_n_u16(vres_wide, 8); |
| |
| return vget_lane_u32(vreinterpret_u32_u8(vres), 0); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // 8 pixels modeprocs |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| uint8x8x4_t dstover_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint16x8_t src_scale; |
| |
| src_scale = vsubw_u8(vdupq_n_u16(256), dst.val[NEON_A]); |
| |
| ret.val[NEON_A] = dst.val[NEON_A] + SkAlphaMul_neon8(src.val[NEON_A], src_scale); |
| ret.val[NEON_R] = dst.val[NEON_R] + SkAlphaMul_neon8(src.val[NEON_R], src_scale); |
| ret.val[NEON_G] = dst.val[NEON_G] + SkAlphaMul_neon8(src.val[NEON_G], src_scale); |
| ret.val[NEON_B] = dst.val[NEON_B] + SkAlphaMul_neon8(src.val[NEON_B], src_scale); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t srcin_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint16x8_t scale; |
| |
| scale = SkAlpha255To256_neon8(dst.val[NEON_A]); |
| |
| ret.val[NEON_A] = SkAlphaMul_neon8(src.val[NEON_A], scale); |
| ret.val[NEON_R] = SkAlphaMul_neon8(src.val[NEON_R], scale); |
| ret.val[NEON_G] = SkAlphaMul_neon8(src.val[NEON_G], scale); |
| ret.val[NEON_B] = SkAlphaMul_neon8(src.val[NEON_B], scale); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t dstin_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint16x8_t scale; |
| |
| scale = SkAlpha255To256_neon8(src.val[NEON_A]); |
| |
| ret = SkAlphaMulQ_neon8(dst, scale); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t srcout_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint16x8_t scale = vsubw_u8(vdupq_n_u16(256), dst.val[NEON_A]); |
| |
| ret = SkAlphaMulQ_neon8(src, scale); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t dstout_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint16x8_t scale = vsubw_u8(vdupq_n_u16(256), src.val[NEON_A]); |
| |
| ret = SkAlphaMulQ_neon8(dst, scale); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t srcatop_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint8x8_t isa; |
| |
| isa = vsub_u8(vdup_n_u8(255), src.val[NEON_A]); |
| |
| ret.val[NEON_A] = dst.val[NEON_A]; |
| ret.val[NEON_R] = SkAlphaMulAlpha_neon8(src.val[NEON_R], dst.val[NEON_A]) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_R], isa); |
| ret.val[NEON_G] = SkAlphaMulAlpha_neon8(src.val[NEON_G], dst.val[NEON_A]) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_G], isa); |
| ret.val[NEON_B] = SkAlphaMulAlpha_neon8(src.val[NEON_B], dst.val[NEON_A]) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_B], isa); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t dstatop_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint8x8_t ida; |
| |
| ida = vsub_u8(vdup_n_u8(255), dst.val[NEON_A]); |
| |
| ret.val[NEON_A] = src.val[NEON_A]; |
| ret.val[NEON_R] = SkAlphaMulAlpha_neon8(src.val[NEON_R], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_R], src.val[NEON_A]); |
| ret.val[NEON_G] = SkAlphaMulAlpha_neon8(src.val[NEON_G], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_G], src.val[NEON_A]); |
| ret.val[NEON_B] = SkAlphaMulAlpha_neon8(src.val[NEON_B], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_B], src.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t xor_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| uint8x8_t isa, ida; |
| uint16x8_t tmp_wide, tmp_wide2; |
| |
| isa = vsub_u8(vdup_n_u8(255), src.val[NEON_A]); |
| ida = vsub_u8(vdup_n_u8(255), dst.val[NEON_A]); |
| |
| // First calc alpha |
| tmp_wide = vmovl_u8(src.val[NEON_A]); |
| tmp_wide = vaddw_u8(tmp_wide, dst.val[NEON_A]); |
| tmp_wide2 = vshll_n_u8(SkAlphaMulAlpha_neon8(src.val[NEON_A], dst.val[NEON_A]), 1); |
| tmp_wide = vsubq_u16(tmp_wide, tmp_wide2); |
| ret.val[NEON_A] = vmovn_u16(tmp_wide); |
| |
| // Then colors |
| ret.val[NEON_R] = SkAlphaMulAlpha_neon8(src.val[NEON_R], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_R], isa); |
| ret.val[NEON_G] = SkAlphaMulAlpha_neon8(src.val[NEON_G], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_G], isa); |
| ret.val[NEON_B] = SkAlphaMulAlpha_neon8(src.val[NEON_B], ida) |
| + SkAlphaMulAlpha_neon8(dst.val[NEON_B], isa); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t plus_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = vqadd_u8(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = vqadd_u8(src.val[NEON_R], dst.val[NEON_R]); |
| ret.val[NEON_G] = vqadd_u8(src.val[NEON_G], dst.val[NEON_G]); |
| ret.val[NEON_B] = vqadd_u8(src.val[NEON_B], dst.val[NEON_B]); |
| |
| return ret; |
| } |
| |
| uint8x8x4_t modulate_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = SkAlphaMulAlpha_neon8(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = SkAlphaMulAlpha_neon8(src.val[NEON_R], dst.val[NEON_R]); |
| ret.val[NEON_G] = SkAlphaMulAlpha_neon8(src.val[NEON_G], dst.val[NEON_G]); |
| ret.val[NEON_B] = SkAlphaMulAlpha_neon8(src.val[NEON_B], dst.val[NEON_B]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t srcover_color(uint8x8_t a, uint8x8_t b) { |
| uint16x8_t tmp; |
| |
| tmp = vaddl_u8(a, b); |
| tmp -= SkAlphaMulAlpha_neon8_16(a, b); |
| |
| return vmovn_u16(tmp); |
| } |
| |
| uint8x8x4_t screen_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = srcover_color(src.val[NEON_R], dst.val[NEON_R]); |
| ret.val[NEON_G] = srcover_color(src.val[NEON_G], dst.val[NEON_G]); |
| ret.val[NEON_B] = srcover_color(src.val[NEON_B], dst.val[NEON_B]); |
| |
| return ret; |
| } |
| |
| template <bool overlay> |
| static inline uint8x8_t overlay_hardlight_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| /* |
| * In the end we're gonna use (rc + tmp) with a different rc |
| * coming from an alternative. |
| * The whole value (rc + tmp) can always be expressed as |
| * VAL = COM - SUB in the if case |
| * VAL = COM + SUB - sa*da in the else case |
| * |
| * with COM = 255 * (sc + dc) |
| * and SUB = sc*da + dc*sa - 2*dc*sc |
| */ |
| |
| // Prepare common subexpressions |
| uint16x8_t const255 = vdupq_n_u16(255); |
| uint16x8_t sc_plus_dc = vaddl_u8(sc, dc); |
| uint16x8_t scda = vmull_u8(sc, da); |
| uint16x8_t dcsa = vmull_u8(dc, sa); |
| uint16x8_t sada = vmull_u8(sa, da); |
| |
| // Prepare non common subexpressions |
| uint16x8_t dc2, sc2; |
| uint32x4_t scdc2_1, scdc2_2; |
| if (overlay) { |
| dc2 = vshll_n_u8(dc, 1); |
| scdc2_1 = vmull_u16(vget_low_u16(dc2), vget_low_u16(vmovl_u8(sc))); |
| #ifdef SK_CPU_ARM64 |
| scdc2_2 = vmull_high_u16(dc2, vmovl_u8(sc)); |
| #else |
| scdc2_2 = vmull_u16(vget_high_u16(dc2), vget_high_u16(vmovl_u8(sc))); |
| #endif |
| } else { |
| sc2 = vshll_n_u8(sc, 1); |
| scdc2_1 = vmull_u16(vget_low_u16(sc2), vget_low_u16(vmovl_u8(dc))); |
| #ifdef SK_CPU_ARM64 |
| scdc2_2 = vmull_high_u16(sc2, vmovl_u8(dc)); |
| #else |
| scdc2_2 = vmull_u16(vget_high_u16(sc2), vget_high_u16(vmovl_u8(dc))); |
| #endif |
| } |
| |
| // Calc COM |
| int32x4_t com1, com2; |
| com1 = vreinterpretq_s32_u32( |
| vmull_u16(vget_low_u16(const255), vget_low_u16(sc_plus_dc))); |
| com2 = vreinterpretq_s32_u32( |
| #ifdef SK_CPU_ARM64 |
| vmull_high_u16(const255, sc_plus_dc)); |
| #else |
| vmull_u16(vget_high_u16(const255), vget_high_u16(sc_plus_dc))); |
| #endif |
| |
| // Calc SUB |
| int32x4_t sub1, sub2; |
| sub1 = vreinterpretq_s32_u32(vaddl_u16(vget_low_u16(scda), vget_low_u16(dcsa))); |
| #ifdef SK_CPU_ARM64 |
| sub2 = vreinterpretq_s32_u32(vaddl_high_u16(scda, dcsa)); |
| #else |
| sub2 = vreinterpretq_s32_u32(vaddl_u16(vget_high_u16(scda), vget_high_u16(dcsa))); |
| #endif |
| sub1 = vsubq_s32(sub1, vreinterpretq_s32_u32(scdc2_1)); |
| sub2 = vsubq_s32(sub2, vreinterpretq_s32_u32(scdc2_2)); |
| |
| // Compare 2*dc <= da |
| uint16x8_t cmp; |
| |
| if (overlay) { |
| cmp = vcleq_u16(dc2, vmovl_u8(da)); |
| } else { |
| cmp = vcleq_u16(sc2, vmovl_u8(sa)); |
| } |
| |
| // Prepare variables |
| int32x4_t val1_1, val1_2; |
| int32x4_t val2_1, val2_2; |
| uint32x4_t cmp1, cmp2; |
| |
| // Doing a signed lengthening allows to save a few instructions |
| // thanks to sign extension. |
| cmp1 = vreinterpretq_u32_s32(vmovl_s16(vreinterpret_s16_u16(vget_low_u16(cmp)))); |
| #ifdef SK_CPU_ARM64 |
| cmp2 = vreinterpretq_u32_s32(vmovl_high_s16(vreinterpretq_s16_u16(cmp))); |
| #else |
| cmp2 = vreinterpretq_u32_s32(vmovl_s16(vreinterpret_s16_u16(vget_high_u16(cmp)))); |
| #endif |
| |
| // Calc COM - SUB |
| val1_1 = com1 - sub1; |
| val1_2 = com2 - sub2; |
| |
| // Calc COM + SUB - sa*da |
| val2_1 = com1 + sub1; |
| val2_2 = com2 + sub2; |
| |
| val2_1 = vsubq_s32(val2_1, vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(sada)))); |
| #ifdef SK_CPU_ARM64 |
| val2_2 = vsubq_s32(val2_2, vreinterpretq_s32_u32(vmovl_high_u16(sada))); |
| #else |
| val2_2 = vsubq_s32(val2_2, vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(sada)))); |
| #endif |
| |
| // Insert where needed |
| val1_1 = vbslq_s32(cmp1, val1_1, val2_1); |
| val1_2 = vbslq_s32(cmp2, val1_2, val2_2); |
| |
| // Call the clamp_div255round function |
| return clamp_div255round_simd8_32(val1_1, val1_2); |
| } |
| |
| static inline uint8x8_t overlay_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| return overlay_hardlight_color<true>(sc, dc, sa, da); |
| } |
| |
| uint8x8x4_t overlay_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = overlay_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = overlay_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = overlay_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| template <bool lighten> |
| static inline uint8x8_t lighten_darken_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| uint16x8_t sd, ds, cmp, tmp, tmp2; |
| |
| // Prepare |
| sd = vmull_u8(sc, da); |
| ds = vmull_u8(dc, sa); |
| |
| // Do test |
| if (lighten) { |
| cmp = vcgtq_u16(sd, ds); |
| } else { |
| cmp = vcltq_u16(sd, ds); |
| } |
| |
| // Assign if |
| tmp = vaddl_u8(sc, dc); |
| tmp2 = tmp; |
| tmp -= SkDiv255Round_neon8_16_16(ds); |
| |
| // Calc else |
| tmp2 -= SkDiv255Round_neon8_16_16(sd); |
| |
| // Insert where needed |
| tmp = vbslq_u16(cmp, tmp, tmp2); |
| |
| return vmovn_u16(tmp); |
| } |
| |
| static inline uint8x8_t darken_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| return lighten_darken_color<false>(sc, dc, sa, da); |
| } |
| |
| uint8x8x4_t darken_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = darken_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = darken_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = darken_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t lighten_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| return lighten_darken_color<true>(sc, dc, sa, da); |
| } |
| |
| uint8x8x4_t lighten_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = lighten_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = lighten_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = lighten_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t hardlight_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| return overlay_hardlight_color<false>(sc, dc, sa, da); |
| } |
| |
| uint8x8x4_t hardlight_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = hardlight_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = hardlight_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = hardlight_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t difference_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| uint16x8_t sd, ds, tmp; |
| int16x8_t val; |
| |
| sd = vmull_u8(sc, da); |
| ds = vmull_u8(dc, sa); |
| |
| tmp = vminq_u16(sd, ds); |
| tmp = SkDiv255Round_neon8_16_16(tmp); |
| tmp = vshlq_n_u16(tmp, 1); |
| |
| val = vreinterpretq_s16_u16(vaddl_u8(sc, dc)); |
| |
| val -= vreinterpretq_s16_u16(tmp); |
| |
| val = vmaxq_s16(val, vdupq_n_s16(0)); |
| val = vminq_s16(val, vdupq_n_s16(255)); |
| |
| return vmovn_u16(vreinterpretq_u16_s16(val)); |
| } |
| |
| uint8x8x4_t difference_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = difference_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = difference_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = difference_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t exclusion_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| /* The equation can be simplified to 255(sc + dc) - 2 * sc * dc */ |
| |
| uint16x8_t sc_plus_dc, scdc, const255; |
| int32x4_t term1_1, term1_2, term2_1, term2_2; |
| |
| /* Calc (sc + dc) and (sc * dc) */ |
| sc_plus_dc = vaddl_u8(sc, dc); |
| scdc = vmull_u8(sc, dc); |
| |
| /* Prepare constants */ |
| const255 = vdupq_n_u16(255); |
| |
| /* Calc the first term */ |
| term1_1 = vreinterpretq_s32_u32( |
| vmull_u16(vget_low_u16(const255), vget_low_u16(sc_plus_dc))); |
| term1_2 = vreinterpretq_s32_u32( |
| #ifdef SK_CPU_ARM64 |
| vmull_high_u16(const255, sc_plus_dc)); |
| #else |
| vmull_u16(vget_high_u16(const255), vget_high_u16(sc_plus_dc))); |
| #endif |
| |
| /* Calc the second term */ |
| term2_1 = vreinterpretq_s32_u32(vshll_n_u16(vget_low_u16(scdc), 1)); |
| #ifdef SK_CPU_ARM64 |
| term2_2 = vreinterpretq_s32_u32(vshll_high_n_u16(scdc, 1)); |
| #else |
| term2_2 = vreinterpretq_s32_u32(vshll_n_u16(vget_high_u16(scdc), 1)); |
| #endif |
| |
| return clamp_div255round_simd8_32(term1_1 - term2_1, term1_2 - term2_2); |
| } |
| |
| uint8x8x4_t exclusion_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = exclusion_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = exclusion_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = exclusion_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| static inline uint8x8_t blendfunc_multiply_color(uint8x8_t sc, uint8x8_t dc, |
| uint8x8_t sa, uint8x8_t da) { |
| uint32x4_t val1, val2; |
| uint16x8_t scdc, t1, t2; |
| |
| t1 = vmull_u8(sc, vdup_n_u8(255) - da); |
| t2 = vmull_u8(dc, vdup_n_u8(255) - sa); |
| scdc = vmull_u8(sc, dc); |
| |
| val1 = vaddl_u16(vget_low_u16(t1), vget_low_u16(t2)); |
| #ifdef SK_CPU_ARM64 |
| val2 = vaddl_high_u16(t1, t2); |
| #else |
| val2 = vaddl_u16(vget_high_u16(t1), vget_high_u16(t2)); |
| #endif |
| |
| val1 = vaddw_u16(val1, vget_low_u16(scdc)); |
| #ifdef SK_CPU_ARM64 |
| val2 = vaddw_high_u16(val2, scdc); |
| #else |
| val2 = vaddw_u16(val2, vget_high_u16(scdc)); |
| #endif |
| |
| return clamp_div255round_simd8_32( |
| vreinterpretq_s32_u32(val1), vreinterpretq_s32_u32(val2)); |
| } |
| |
| uint8x8x4_t multiply_modeproc_neon8(uint8x8x4_t src, uint8x8x4_t dst) { |
| uint8x8x4_t ret; |
| |
| ret.val[NEON_A] = srcover_color(src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_R] = blendfunc_multiply_color(src.val[NEON_R], dst.val[NEON_R], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_G] = blendfunc_multiply_color(src.val[NEON_G], dst.val[NEON_G], |
| src.val[NEON_A], dst.val[NEON_A]); |
| ret.val[NEON_B] = blendfunc_multiply_color(src.val[NEON_B], dst.val[NEON_B], |
| src.val[NEON_A], dst.val[NEON_A]); |
| |
| return ret; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| typedef uint8x8x4_t (*SkXfermodeProcSIMD)(uint8x8x4_t src, uint8x8x4_t dst); |
| |
| extern SkXfermodeProcSIMD gNEONXfermodeProcs[]; |
| |
| SkNEONProcCoeffXfermode::SkNEONProcCoeffXfermode(SkReadBuffer& buffer) |
| : INHERITED(buffer) { |
| fProcSIMD = reinterpret_cast<void*>(gNEONXfermodeProcs[this->getMode()]); |
| } |
| |
| void SkNEONProcCoeffXfermode::xfer32(SkPMColor* SK_RESTRICT dst, |
| const SkPMColor* SK_RESTRICT src, int count, |
| const SkAlpha* SK_RESTRICT aa) const { |
| SkASSERT(dst && src && count >= 0); |
| |
| SkXfermodeProc proc = this->getProc(); |
| SkXfermodeProcSIMD procSIMD = reinterpret_cast<SkXfermodeProcSIMD>(fProcSIMD); |
| SkASSERT(procSIMD != NULL); |
| |
| if (NULL == aa) { |
| // Unrolled NEON code |
| // We'd like to just do this (modulo a few casts): |
| // vst4_u8(dst, procSIMD(vld4_u8(src), vld4_u8(dst))); |
| // src += 8; |
| // dst += 8; |
| // but that tends to generate miserable code. Here are a bunch of faster |
| // workarounds for different architectures and compilers. |
| while (count >= 8) { |
| |
| #ifdef SK_CPU_ARM32 |
| uint8x8x4_t vsrc, vdst, vres; |
| #if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 6)) |
| asm volatile ( |
| "vld4.u8 %h[vsrc], [%[src]]! \t\n" |
| "vld4.u8 %h[vdst], [%[dst]] \t\n" |
| : [vsrc] "=w" (vsrc), [vdst] "=w" (vdst), [src] "+&r" (src) |
| : [dst] "r" (dst) |
| : |
| ); |
| #else |
| register uint8x8_t d0 asm("d0"); |
| register uint8x8_t d1 asm("d1"); |
| register uint8x8_t d2 asm("d2"); |
| register uint8x8_t d3 asm("d3"); |
| register uint8x8_t d4 asm("d4"); |
| register uint8x8_t d5 asm("d5"); |
| register uint8x8_t d6 asm("d6"); |
| register uint8x8_t d7 asm("d7"); |
| |
| asm volatile ( |
| "vld4.u8 {d0-d3},[%[src]]!;" |
| "vld4.u8 {d4-d7},[%[dst]];" |
| : "=w" (d0), "=w" (d1), "=w" (d2), "=w" (d3), |
| "=w" (d4), "=w" (d5), "=w" (d6), "=w" (d7), |
| [src] "+&r" (src) |
| : [dst] "r" (dst) |
| : |
| ); |
| vsrc.val[0] = d0; vdst.val[0] = d4; |
| vsrc.val[1] = d1; vdst.val[1] = d5; |
| vsrc.val[2] = d2; vdst.val[2] = d6; |
| vsrc.val[3] = d3; vdst.val[3] = d7; |
| #endif |
| |
| vres = procSIMD(vsrc, vdst); |
| |
| vst4_u8((uint8_t*)dst, vres); |
| |
| dst += 8; |
| |
| #else // #ifdef SK_CPU_ARM32 |
| |
| asm volatile ( |
| "ld4 {v0.8b - v3.8b}, [%[src]], #32 \t\n" |
| "ld4 {v4.8b - v7.8b}, [%[dst]] \t\n" |
| "blr %[proc] \t\n" |
| "st4 {v0.8b - v3.8b}, [%[dst]], #32 \t\n" |
| : [src] "+&r" (src), [dst] "+&r" (dst) |
| : [proc] "r" (procSIMD) |
| : "cc", "memory", |
| /* We don't know what proc is going to clobber so we must |
| * add everything that is not callee-saved. |
| */ |
| "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", |
| "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", |
| "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v16", "v17", |
| "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26", |
| "v27", "v28", "v29", "v30", "v31" |
| ); |
| |
| #endif // #ifdef SK_CPU_ARM32 |
| |
| count -= 8; |
| } |
| // Leftovers |
| for (int i = 0; i < count; i++) { |
| dst[i] = proc(src[i], dst[i]); |
| } |
| } else { |
| for (int i = count - 1; i >= 0; --i) { |
| unsigned a = aa[i]; |
| if (0 != a) { |
| SkPMColor dstC = dst[i]; |
| SkPMColor C = proc(src[i], dstC); |
| if (a != 0xFF) { |
| C = SkFourByteInterp_neon(C, dstC, a); |
| } |
| dst[i] = C; |
| } |
| } |
| } |
| } |
| |
| void SkNEONProcCoeffXfermode::xfer16(uint16_t* SK_RESTRICT dst, |
| const SkPMColor* SK_RESTRICT src, int count, |
| const SkAlpha* SK_RESTRICT aa) const { |
| SkASSERT(dst && src && count >= 0); |
| |
| SkXfermodeProc proc = this->getProc(); |
| SkXfermodeProcSIMD procSIMD = reinterpret_cast<SkXfermodeProcSIMD>(fProcSIMD); |
| SkASSERT(procSIMD != NULL); |
| |
| if (NULL == aa) { |
| while(count >= 8) { |
| uint16x8_t vdst, vres16; |
| uint8x8x4_t vdst32, vsrc, vres; |
| |
| vdst = vld1q_u16(dst); |
| |
| #ifdef SK_CPU_ARM64 |
| vsrc = vld4_u8((uint8_t*)src); |
| #else |
| #if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 6)) |
| asm volatile ( |
| "vld4.u8 %h[vsrc], [%[src]]! \t\n" |
| : [vsrc] "=w" (vsrc), [src] "+&r" (src) |
| : : |
| ); |
| #else |
| register uint8x8_t d0 asm("d0"); |
| register uint8x8_t d1 asm("d1"); |
| register uint8x8_t d2 asm("d2"); |
| register uint8x8_t d3 asm("d3"); |
| |
| asm volatile ( |
| "vld4.u8 {d0-d3},[%[src]]!;" |
| : "=w" (d0), "=w" (d1), "=w" (d2), "=w" (d3), |
| [src] "+&r" (src) |
| : : |
| ); |
| vsrc.val[0] = d0; |
| vsrc.val[1] = d1; |
| vsrc.val[2] = d2; |
| vsrc.val[3] = d3; |
| #endif |
| #endif // #ifdef SK_CPU_ARM64 |
| |
| vdst32 = SkPixel16ToPixel32_neon8(vdst); |
| vres = procSIMD(vsrc, vdst32); |
| vres16 = SkPixel32ToPixel16_neon8(vres); |
| |
| vst1q_u16(dst, vres16); |
| |
| count -= 8; |
| dst += 8; |
| #ifdef SK_CPU_ARM64 |
| src += 8; |
| #endif |
| } |
| for (int i = 0; i < count; i++) { |
| SkPMColor dstC = SkPixel16ToPixel32(dst[i]); |
| dst[i] = SkPixel32ToPixel16_ToU16(proc(src[i], dstC)); |
| } |
| } else { |
| for (int i = count - 1; i >= 0; --i) { |
| unsigned a = aa[i]; |
| if (0 != a) { |
| SkPMColor dstC = SkPixel16ToPixel32(dst[i]); |
| SkPMColor C = proc(src[i], dstC); |
| if (0xFF != a) { |
| C = SkFourByteInterp_neon(C, dstC, a); |
| } |
| dst[i] = SkPixel32ToPixel16_ToU16(C); |
| } |
| } |
| } |
| } |
| |
| #ifndef SK_IGNORE_TO_STRING |
| void SkNEONProcCoeffXfermode::toString(SkString* str) const { |
| this->INHERITED::toString(str); |
| } |
| #endif |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| SkXfermodeProcSIMD gNEONXfermodeProcs[] = { |
| NULL, // kClear_Mode |
| NULL, // kSrc_Mode |
| NULL, // kDst_Mode |
| NULL, // kSrcOver_Mode |
| dstover_modeproc_neon8, |
| srcin_modeproc_neon8, |
| dstin_modeproc_neon8, |
| srcout_modeproc_neon8, |
| dstout_modeproc_neon8, |
| srcatop_modeproc_neon8, |
| dstatop_modeproc_neon8, |
| xor_modeproc_neon8, |
| plus_modeproc_neon8, |
| modulate_modeproc_neon8, |
| screen_modeproc_neon8, |
| |
| overlay_modeproc_neon8, |
| darken_modeproc_neon8, |
| lighten_modeproc_neon8, |
| NULL, // kColorDodge_Mode |
| NULL, // kColorBurn_Mode |
| hardlight_modeproc_neon8, |
| NULL, // kSoftLight_Mode |
| difference_modeproc_neon8, |
| exclusion_modeproc_neon8, |
| multiply_modeproc_neon8, |
| |
| NULL, // kHue_Mode |
| NULL, // kSaturation_Mode |
| NULL, // kColor_Mode |
| NULL, // kLuminosity_Mode |
| }; |
| |
| SK_COMPILE_ASSERT( |
| SK_ARRAY_COUNT(gNEONXfermodeProcs) == SkXfermode::kLastMode + 1, |
| mode_count_arm |
| ); |
| |
| SkXfermodeProc gNEONXfermodeProcs1[] = { |
| NULL, // kClear_Mode |
| NULL, // kSrc_Mode |
| NULL, // kDst_Mode |
| NULL, // kSrcOver_Mode |
| NULL, // kDstOver_Mode |
| NULL, // kSrcIn_Mode |
| NULL, // kDstIn_Mode |
| NULL, // kSrcOut_Mode |
| NULL, // kDstOut_Mode |
| srcatop_modeproc_neon, |
| dstatop_modeproc_neon, |
| xor_modeproc_neon, |
| plus_modeproc_neon, |
| modulate_modeproc_neon, |
| NULL, // kScreen_Mode |
| |
| NULL, // kOverlay_Mode |
| NULL, // kDarken_Mode |
| NULL, // kLighten_Mode |
| NULL, // kColorDodge_Mode |
| NULL, // kColorBurn_Mode |
| NULL, // kHardLight_Mode |
| NULL, // kSoftLight_Mode |
| NULL, // kDifference_Mode |
| NULL, // kExclusion_Mode |
| NULL, // kMultiply_Mode |
| |
| NULL, // kHue_Mode |
| NULL, // kSaturation_Mode |
| NULL, // kColor_Mode |
| NULL, // kLuminosity_Mode |
| }; |
| |
| SK_COMPILE_ASSERT( |
| SK_ARRAY_COUNT(gNEONXfermodeProcs1) == SkXfermode::kLastMode + 1, |
| mode1_count_arm |
| ); |
| |
| SkProcCoeffXfermode* SkPlatformXfermodeFactory_impl_neon(const ProcCoeff& rec, |
| SkXfermode::Mode mode) { |
| |
| void* procSIMD = reinterpret_cast<void*>(gNEONXfermodeProcs[mode]); |
| |
| if (procSIMD != NULL) { |
| return SkNEW_ARGS(SkNEONProcCoeffXfermode, (rec, mode, procSIMD)); |
| } |
| return NULL; |
| } |
| |
| SkXfermodeProc SkPlatformXfermodeProcFactory_impl_neon(SkXfermode::Mode mode) { |
| return gNEONXfermodeProcs1[mode]; |
| } |
