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| 1 | /*! | ||
| 2 | * \copy | ||
| 3 | * Copyright (c) 2013, Cisco Systems | ||
| 4 | * All rights reserved. | ||
| 5 | * | ||
| 6 | * Redistribution and use in source and binary forms, with or without | ||
| 7 | * modification, are permitted provided that the following conditions | ||
| 8 | * are met: | ||
| 9 | * | ||
| 10 | * * Redistributions of source code must retain the above copyright | ||
| 11 | * notice, this list of conditions and the following disclaimer. | ||
| 12 | * | ||
| 13 | * * Redistributions in binary form must reproduce the above copyright | ||
| 14 | * notice, this list of conditions and the following disclaimer in | ||
| 15 | * the documentation and/or other materials provided with the | ||
| 16 | * distribution. | ||
| 17 | * | ||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
| 22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| 26 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
| 28 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| 29 | * POSSIBILITY OF SUCH DAMAGE. | ||
| 30 | * | ||
| 31 | */ | ||
| 32 | |||
| 33 | #ifdef HAVE_NEON | ||
| 34 | .text | ||
| 35 | #include "arm_arch_common_macro.S" | ||
| 36 | |||
| 37 | #ifdef APPLE_IOS | ||
| 38 | .macro SQR_ADD_16BYTES | ||
| 39 | vmull.u8 q3, $0, $0 | ||
| 40 | vmull.u8 q8, $1, $1 | ||
| 41 | vpadal.u16 $2, q3 | ||
| 42 | vpadal.u16 $2, q8 | ||
| 43 | .endm | ||
| 44 | #else | ||
| 45 | .macro SQR_ADD_16BYTES arg0, arg1, arg2 | ||
| 46 | vmull.u8 q3, \arg0, \arg0 | ||
| 47 | vmull.u8 q8, \arg1, \arg1 | ||
| 48 | vpadal.u16 \arg2, q3 | ||
| 49 | vpadal.u16 \arg2, q8 | ||
| 50 | .endm | ||
| 51 | #endif | ||
| 52 | |||
| 53 | |||
| 54 | WELS_ASM_FUNC_BEGIN pixel_var_16x16_neon | ||
| 55 | stmdb sp!, {r4} | ||
| 56 | |||
| 57 | vld1.8 {q15}, [r0], r1 //save the ref data (16bytes) | ||
| 58 | vld1.8 {q14}, [r2], r3 //save the src data (16bytes) | ||
| 59 | |||
| 60 | |||
| 61 | vabd.u8 q13, q14, q15 | ||
| 62 | vmull.u8 q12, d27, d27 | ||
| 63 | vmull.u8 q11, d26, d26 | ||
| 64 | vaddl.u16 q12, d24, d25 | ||
| 65 | vpadal.u16 q12, q11 //sqr | ||
| 66 | |||
| 67 | vaddl.u8 q13, d26, d27 //sum | ||
| 68 | |||
| 69 | vaddl.u8 q10, d28, d29 //sum_cur | ||
| 70 | |||
| 71 | vmull.u8 q9, d29, d29 | ||
| 72 | vmull.u8 q8, d28, d28 | ||
| 73 | vaddl.u16 q9, d18, d19 //sqr_cur | ||
| 74 | vpadal.u16 q9, q8 | ||
| 75 | |||
| 76 | mov r4, #15 | ||
| 77 | pixel_var_16x16_loop0: | ||
| 78 | |||
| 79 | vld1.8 {q0}, [r0], r1 //save the ref data (16bytes) | ||
| 80 | vld1.8 {q1}, [r2], r3 //save the src data (16bytes) | ||
| 81 | |||
| 82 | vabd.u8 q2, q0, q1 | ||
| 83 | |||
| 84 | //q10 save sum_cur | ||
| 85 | vpadal.u8 q10, q1 | ||
| 86 | |||
| 87 | //q12 save sqr | ||
| 88 | SQR_ADD_16BYTES d4, d5, q12 | ||
| 89 | |||
| 90 | //q13 save sum | ||
| 91 | vpadal.u8 q13, q2 | ||
| 92 | |||
| 93 | subs r4, #1 | ||
| 94 | |||
| 95 | //q9 save sqr_cur | ||
| 96 | SQR_ADD_16BYTES d2, d3, q9 | ||
| 97 | |||
| 98 | bne pixel_var_16x16_loop0 | ||
| 99 | |||
| 100 | vadd.u16 d0, d26, d27 //sum | ||
| 101 | vadd.u16 d1, d20, d21 //sum_cur | ||
| 102 | vpaddl.u16 q0, q0 | ||
| 103 | vadd.u32 d2, d24, d25 //sqr | ||
| 104 | vadd.u32 d3, d18, d19 //sqr_cur | ||
| 105 | vpadd.u32 d0, d0, d1 | ||
| 106 | vpadd.u32 d1, d2, d3 | ||
| 107 | |||
| 108 | ldr r4, [sp, #4] | ||
| 109 | |||
| 110 | vshr.u32 q0, q0, #8 | ||
| 111 | vmul.u32 d0, d0 | ||
| 112 | vsub.u32 d0, d1, d0 | ||
| 113 | vmovl.u32 q0, d0 | ||
| 114 | vst2.16 {d0[0], d1[0]}, [r4] | ||
| 115 | |||
| 116 | ldmia sp!, {r4} | ||
| 117 | |||
| 118 | WELS_ASM_FUNC_END | ||
| 119 | |||
| 120 | #endif | ||