1 @ 2 @ Copyright (C) 2009 The Android Open Source Project 3 @ 4 @ Licensed under the Apache License, Version 2.0 (the "License"); 5 @ you may not use this file except in compliance with the License. 6 @ You may obtain a copy of the License at 7 @ 8 @ http://www.apache.org/licenses/LICENSE-2.0 9 @ 10 @ Unless required by applicable law or agreed to in writing, software 11 @ distributed under the License is distributed on an "AS IS" BASIS, 12 @ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 @ See the License for the specific language governing permissions and 14 @ limitations under the License. 15 @ 16 17 #include "asm_common.S" 18 19 preserve8 20 21 .fpu neon 22 .text 23 24 /* Input / output registers */ 25 26 #define ref r0 27 #define fill r1 28 #define left r2 29 #define tmp2 r2 30 #define center r3 31 #define right r4 32 #define tmp1 r5 33 34 /* -- NEON registers -- */ 35 36 #define qTmp0 Q0.U8 37 #define qTmp1 Q1.U8 38 #define dTmp0 D0.U8 39 #define dTmp1 D1.U8 40 #define dTmp2 D2.U8 41 #define dTmp3 D3.U8 42 43 /* 44 void h264bsdFillRow7(const u8 * ref, u8 * fill, i32 left, i32 center, 45 i32 right); 46 */ 47 48 function h264bsdFillRow7, export=1 49 50 PUSH {r4-r6,lr} 51 CMP left, #0 52 LDR right, [sp,#0x10] 53 BEQ switch_center 54 LDRB tmp1, [ref,#0] 55 56 loop_left: 57 SUBS left, left, #1 58 STRB tmp1, [fill], #1 59 BNE loop_left 60 61 switch_center: 62 ASR tmp2,center,#2 63 CMP tmp2,#9 64 ADDCC pc,pc,tmp2,LSL #2 65 B loop_center 66 B loop_center 67 B case_1 68 B case_2 69 B case_3 70 B case_4 71 B case_5 72 B case_6 73 B case_7 74 B case_8 75 76 case_8: 77 VLD1 {qTmp0, qTmp1}, [ref]! 78 SUB center, center, #32 79 VST1 {qTmp0}, [fill]! 80 VST1 {qTmp1}, [fill]! 81 B loop_center 82 case_7: 83 VLD1 {dTmp0,dTmp1,dTmp2}, [ref]! 84 SUB center, center, #28 85 LDR tmp2, [ref], #4 86 VST1 {dTmp0,dTmp1,dTmp2}, [fill]! 87 STR tmp2, [fill],#4 88 B loop_center 89 case_6: 90 VLD1 {dTmp0,dTmp1,dTmp2}, [ref]! 91 SUB center, center, #24 92 VST1 {dTmp0,dTmp1,dTmp2}, [fill]! 93 B loop_center 94 case_5: 95 VLD1 {qTmp0}, [ref]! 96 SUB center, center, #20 97 LDR tmp2, [ref], #4 98 VST1 {qTmp0}, [fill]! 99 STR tmp2, [fill],#4 100 B loop_center 101 case_4: 102 VLD1 {qTmp0}, [ref]! 103 SUB center, center, #16 104 VST1 {qTmp0}, [fill]! 105 B loop_center 106 case_3: 107 VLD1 {dTmp0}, [ref]! 108 SUB center, center, #12 109 LDR tmp2, [ref], #4 110 VST1 dTmp0, [fill]! 111 STR tmp2, [fill],#4 112 B loop_center 113 case_2: 114 LDR tmp2, [ref],#4 115 SUB center, center, #4 116 STR tmp2, [fill], #4 117 case_1: 118 LDR tmp2, [ref],#4 119 SUB center, center, #4 120 STR tmp2, [fill], #4 121 122 loop_center: 123 CMP center, #0 124 BEQ jump 125 LDRB tmp2, [ref], #1 126 SUB center, center, #1 127 STRB tmp2, [fill], #1 128 BNE loop_center 129 jump: 130 CMP right,#0 131 POPEQ {r4-r6,pc} 132 LDRB tmp2, [ref,#-1] 133 134 loop_right: 135 STRB tmp2, [fill], #1 136 SUBS right, right, #1 137 BNE loop_right 138 139 POP {r4-r6,pc} 140 141 endfunction 142 143 144
