| /* |
| * Copyright (C) 2007-2008 ARM Limited |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| /* |
| * |
| */ |
| |
| .eabi_attribute 24, 1 |
| .eabi_attribute 25, 1 |
| |
| .arm |
| .fpu neon |
| .text |
| .syntax unified |
| |
| .global omxVCM4P10_TransformDequantChromaDCFromPair |
| omxVCM4P10_TransformDequantChromaDCFromPair: |
| push {r4-r10, lr} |
| ldr r9, [r0,#0] |
| vmov.i16 d0, #0 |
| mov r8, #0x1f |
| vst1.16 {d0}, [r1] |
| ldrb r6, [r9], #1 |
| unpackLoop: |
| tst r6, #0x10 |
| ldrsbne r5, [r9, #1] |
| ldrbne r4, [r9], #2 |
| and r7, r8, r6, lsl #1 |
| ldrsbeq r4, [r9], #1 |
| orrne r4, r4, r5, lsl #8 |
| tst r6, #0x20 |
| ldrbeq r6, [r9], #1 |
| strh r4, [r1, r7] |
| beq unpackLoop |
| ldmia r1, {r3, r4} |
| str r9, [r0, #0] |
| ldr r5, .LarmVCM4P10_QPDivTable |
| P0: add r5, pc |
| ldr r6, .LarmVCM4P10_VMatrixQPModTable |
| P1: add r6, pc |
| saddsubx r3, r3, r3 |
| saddsubx r4, r4, r4 |
| ldrsb r9, [r5, r2] |
| ldrsb r2, [r6, r2] |
| sadd16 r5, r3, r4 |
| ssub16 r6, r3, r4 |
| lsl r2, r2, r9 |
| vmov d0, r5, r6 |
| vrev32.16 d0, d0 |
| vdup.16 d1, r2 |
| vmull.s16 q1, d0, d1 |
| vshrn.i32 d2, q1, #1 |
| vst1.16 {d2}, [r1] |
| mov r0, #0 |
| pop {r4-r10, pc} |
| |
| .LarmVCM4P10_QPDivTable: |
| .word armVCM4P10_QPDivTable-(P0+8) |
| .LarmVCM4P10_VMatrixQPModTable: |
| .word armVCM4P10_VMatrixQPModTable-(P1+8) |
| |
| .end |
