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 REQUIRE8 18 PRESERVE8 19 20 AREA |.text|, CODE 21 22 EXPORT h264bsdFillRow7 23 24 ; Input / output registers 25 26 ref RN 0 27 fill RN 1 28 left RN 2 29 tmp2 RN 2 30 center RN 3 31 right RN 4 32 tmp1 RN 5 33 34 ; -- NEON registers -- 35 36 qTmp0 QN Q0.U8 37 qTmp1 QN Q1.U8 38 dTmp0 DN D0.U8 39 dTmp1 DN D1.U8 40 dTmp2 DN D2.U8 41 dTmp3 DN D3.U8 42 43 44 ;/*------------------------------------------------------------------------------ 45 ; 46 ; Function: h264bsdFillRow7 47 ; 48 ; Functional description: 49 ; 50 ; Inputs: 51 ; 52 ; Outputs: 53 ; 54 ; Returns: 55 ; 56 ;------------------------------------------------------------------------------*/ 57 58 h264bsdFillRow7 59 PUSH {r4-r6,lr} 60 CMP left, #0 61 LDR right, [sp,#0x10] 62 BEQ switch_center 63 LDRB tmp1, [ref,#0] 64 65 loop_left 66 SUBS left, left, #1 67 STRB tmp1, [fill], #1 68 BNE loop_left 69 70 switch_center 71 ASR tmp2,center,#2 72 CMP tmp2,#9 73 ADDCC pc,pc,tmp2,LSL #2 74 B loop_center 75 B loop_center 76 B case_1 77 B case_2 78 B case_3 79 B case_4 80 B case_5 81 B case_6 82 B case_7 83 B case_8 84 ;case_8 85 ; LDR tmp2, [ref], #4 86 ; SUB center, center, #4 87 ; STR tmp2, [fill], #4 88 ;case_7 89 ; LDR tmp2, [ref], #4 90 ; SUB center, center, #4 91 ; STR tmp2, [fill], #4 92 ;case_6 93 ; LDR tmp2, [ref], #4 94 ; SUB center, center, #4 95 ; STR tmp2, [fill],#4 96 ;case_5 97 ; LDR tmp2, [ref], #4 98 ; SUB center, center, #4 99 ; STR tmp2, [fill],#4 100 ;case_4 101 ; LDR tmp2, [ref],#4 102 ; SUB center, center, #4 103 ; STR tmp2, [fill], #4 104 ;case_3 105 ; LDR tmp2, [ref],#4 106 ; SUB center, center, #4 107 ; STR tmp2, [fill], #4 108 ;case_2 109 ; LDR tmp2, [ref],#4 110 ; SUB center, center, #4 111 ; STR tmp2, [fill], #4 112 ;case_1 113 ; LDR tmp2, [ref],#4 114 ; SUB center, center, #4 115 ; STR tmp2, [fill], #4 116 117 case_8 118 VLD1 {qTmp0, qTmp1}, [ref]! 119 SUB center, center, #32 120 VST1 qTmp0, [fill]! 121 VST1 qTmp1, [fill]! 122 B loop_center 123 case_7 124 VLD1 {dTmp0,dTmp1,dTmp2}, [ref]! 125 SUB center, center, #28 126 LDR tmp2, [ref], #4 127 VST1 {dTmp0,dTmp1,dTmp2}, [fill]! 128 STR tmp2, [fill],#4 129 B loop_center 130 case_6 131 VLD1 {dTmp0,dTmp1,dTmp2}, [ref]! 132 SUB center, center, #24 133 VST1 {dTmp0,dTmp1,dTmp2}, [fill]! 134 B loop_center 135 case_5 136 VLD1 qTmp0, [ref]! 137 SUB center, center, #20 138 LDR tmp2, [ref], #4 139 VST1 qTmp0, [fill]! 140 STR tmp2, [fill],#4 141 B loop_center 142 case_4 143 VLD1 qTmp0, [ref]! 144 SUB center, center, #16 145 VST1 qTmp0, [fill]! 146 B loop_center 147 case_3 148 VLD1 dTmp0, [ref]! 149 SUB center, center, #12 150 LDR tmp2, [ref], #4 151 VST1 dTmp0, [fill]! 152 STR tmp2, [fill],#4 153 B loop_center 154 case_2 155 LDR tmp2, [ref],#4 156 SUB center, center, #4 157 STR tmp2, [fill], #4 158 case_1 159 LDR tmp2, [ref],#4 160 SUB center, center, #4 161 STR tmp2, [fill], #4 162 163 loop_center 164 CMP center, #0 165 LDRBNE tmp2, [ref], #1 166 SUBNE center, center, #1 167 STRBNE tmp2, [fill], #1 168 BNE loop_center 169 CMP right,#0 170 POPEQ {r4-r6,pc} 171 LDRB tmp2, [ref,#-1] 172 173 loop_right 174 STRB tmp2, [fill], #1 175 SUBS right, right, #1 176 BNE loop_right 177 178 POP {r4-r6,pc} 179 END 180 181
