1 @/****************************************************************************** 2 @ * 3 @ * Copyright (C) 2018 The Android Open Source Project 4 @ * 5 @ * Licensed under the Apache License, Version 2.0 (the "License"); 6 @ * you may not use this file except in compliance with the License. 7 @ * You may obtain a copy of the License at: 8 @ * 9 @ * http://www.apache.org/licenses/LICENSE-2.0 10 @ * 11 @ * Unless required by applicable law or agreed to in writing, software 12 @ * distributed under the License is distributed on an "AS IS" BASIS, 13 @ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 @ * See the License for the specific language governing permissions and 15 @ * limitations under the License. 16 @ * 17 @ ***************************************************************************** 18 @ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 @*/ 20 21 22 .text 23 .p2align 2 24 .global ixheaacd_apply_rot_armv7 25 26 ixheaacd_apply_rot_armv7: 27 STMFD SP!, {R4-R12, R14} 28 LDR R5, =0x59e 29 MOV R4, #22 30 ADD R11, R0, R5 31 LOOP1: 32 LDRSH R5, [R11, #-98] 33 LDRSH R6, [R11, #94] 34 LDRSH R7, [R11, #-96] 35 LDRSH R8, [R11, #96] 36 ADD R9, R5, R6 37 STRH R9, [R11, #-98] 38 ADD R10, R7, R8 39 STRH R10, [R11, #-96] 40 41 42 LDRSH R5, [R11, #-2] 43 LDRSH R6, [R11, #190] 44 LDRSH R7, [R11] 45 LDRSH R8, [R11, #192] 46 ADD R9, R5, R6 47 STRH R9, [R11, #-2] 48 ADD R10, R7, R8 49 STRH R10, [R11], #4 50 51 LDRSH R5, [R11, #-98] 52 LDRSH R6, [R11, #94] 53 LDRSH R7, [R11, #-96] 54 LDRSH R8, [R11, #96] 55 ADD R9, R5, R6 56 STRH R9, [R11, #-98] 57 ADD R10, R7, R8 58 STRH R10, [R11, #-96] 59 60 SUBS R4, R4, #2 61 62 LDRSH R5, [R11, #-2] 63 LDRSH R6, [R11, #190] 64 LDRSH R7, [R11] 65 LDRSH R8, [R11, #192] 66 ADD R9, R5, R6 67 STRH R9, [R11, #-2] 68 ADD R10, R7, R8 69 STRH R10, [R11], #4 70 71 BGT LOOP1 72 73 LDR R4, =0x53C 74 LDR R12, [R0, #44] 75 ADD R11, R0, R4 76 MOV R4, #10 77 78 LOOP2: 79 80 LDR R5, [R12] 81 LDR R7, [R11], #4 82 LDR R6, [R12, #0x80] 83 LDR R8, [R11, #92] 84 85 SMULWB R9, R5, R7 86 SMULWB R10, R6, R8 87 SMULWT R14, R5, R7 88 89 QADD R5, R9, R10 90 SMULWT R6, R6, R8 91 92 MOV R5, R5, LSL #2 93 QADD R14, R14, R6 94 STR R5, [R12], #4 95 MOV R14, R14, LSL #2 96 STR R14, [R12, #0x7c] 97 98 LDR R5, [R12, #0x3c] 99 LDR R6, [R12, #0xbc] 100 101 SMULWB R9, R5, R7 102 SMULWB R10, R6, R8 103 SMULWT R14, R5, R7 104 105 QADD R5, R9, R10 106 107 SMULWT R6, R6, R8 108 109 MOV R5, R5, LSL #2 110 QADD R14, R14, R6 111 STR R5, [R12, #0x3c] 112 MOV R14, R14, LSL #2 113 STR R14, [R12, #0xbc] 114 115 SUBS R4, R4, #1 116 117 BGT LOOP2 118 119 LDR R11, =0x6c2 120 LDR R5, =0x564 121 LDRSH R14, [R0, R11] 122 ADD R11, R0, R5 123 LDR R5, [SP, #44] 124 SUB SP, SP, #512 125 MOV R12, SP 126 LDR R6, [R5, #12] 127 MOV R4, #12 128 ADD R6, R6, #0xb8 129 130 LOOP3: 131 LDRSH R5, [R6], #2 132 LDRSH R7, [R6, #-4] 133 LDR R10, [R11, #96] 134 LDR R9, [R11], #4 135 CMP R14, R5 136 SUB R8, R14, R7 137 SUBGT R8, R5, R7 138 ADD R5, R12, R7, LSL #3 139 140 LOOP3INN1: 141 STR R10, [R5, #4] 142 STR R9, [R5], #8 143 SUBS R8, R8, #1 144 BGT LOOP3INN1 145 146 SUBS R4, R4, #1 147 BGT LOOP3 148 149 MOV R4, #3 150 LDR R12, [R0, #44] 151 LDR R9, [SP, #48+512] 152 LDR R0, [SP, #40+512] 153 STR R14, [SP, #-4]! 154 155 LOOP4: 156 LDR R5, [R12], #4 157 LDR R6, [R12, #0x3c] 158 LDR R7, [R12, #0x7c] 159 LDRSH R10, [R9], #2 160 LDR R8, [R12, #0xbc] 161 MOV R11, #5 162 CMP R10, #6 163 SUBLT R11, R10, #1 164 165 LOOP4INN1: 166 LDR R10, [R12], #4 167 LDR R14, [R12, #0x3C] 168 QADD R5, R5, R10 169 QADD R6, R6, R14 170 LDR R10, [R12, #0x7C] 171 LDR R14, [R12, #0xBC] 172 QADD R7, R7, R10 173 QADD R8, R8, R14 174 SUBS R11, R11, #1 175 BGT LOOP4INN1 176 177 STR R5, [R1], #4 178 STR R6, [R2], #4 179 STR R7, [R3], #4 180 STR R8, [R0], #4 181 SUBS R4, R4, #1 182 BGT LOOP4 183 184 LDR R14, [SP] 185 ADD R11, SP, #28 186 SUB R4, R14, #3 187 188 LOOP5: 189 LDR R5, [R1] 190 LDR R7, [R11], #4 191 LDR R6, [R3] 192 LDR R8, [R11], #4 193 194 SMULWB R9, R5, R7 195 SMULWB R10, R6, R8 196 SMULWT R14, R5, R7 197 198 QADD R5, R9, R10 199 SMULWT R6, R6, R8 200 201 MOV R5, R5, LSL #2 202 QADD R14, R14, R6 203 STR R5, [R1], #4 204 MOV R14, R14, LSL #2 205 STR R14, [R3], #4 206 207 SUBS R4, R4, #1 208 209 LDR R5, [R2] 210 LDR R6, [R0] 211 212 SMULWB R9, R5, R7 213 SMULWB R10, R6, R8 214 SMULWT R14, R5, R7 215 216 QADD R5, R9, R10 217 218 SMULWT R6, R6, R8 219 220 MOV R5, R5, LSL #2 221 QADD R14, R14, R6 222 STR R5, [R2], #4 223 MOV R14, R14, LSL #2 224 STR R14, [R0], #4 225 226 BGT LOOP5 227 ADD SP, SP, #516 228 LDMFD sp!, {r4-r12, r15} 229 230
