| ;// |
| ;// 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. |
| ;// |
| ;// |
| ;// |
| ;// File Name: armVCM4P10_Interpolate_Chroma_s.s |
| ;// OpenMAX DL: v1.0.2 |
| ;// Revision: 9641 |
| ;// Date: Thursday, February 7, 2008 |
| ;// |
| ;// |
| ;// |
| ;// |
| |
| |
| INCLUDE omxtypes_s.h |
| INCLUDE armCOMM_s.h |
| |
| M_VARIANTS ARM1136JS |
| |
| IF ARM1136JS |
| |
| ;// input registers |
| |
| pSrc RN 0 |
| iSrcStep RN 1 |
| pDst RN 2 |
| iDstStep RN 3 |
| iWidth RN 4 |
| iHeight RN 5 |
| dx RN 6 |
| dy RN 7 |
| |
| |
| ;// local variable registers |
| temp RN 11 |
| r0x20 RN 12 |
| tmp0x20 RN 14 |
| return RN 0 |
| dxPlusdy RN 10 |
| EightMinusdx RN 8 |
| EightMinusdy RN 9 |
| dxEightMinusdx RN 8 |
| BACoeff RN 6 |
| DCCoeff RN 7 |
| |
| iDstStepx2MinusWidth RN 8 |
| iSrcStepx2MinusWidth RN 9 |
| iSrcStep1 RN 10 |
| |
| pSrc1 RN 1 |
| pSrc2 RN 8 |
| pDst1 RN 8 |
| pDst2 RN 12 |
| |
| pix00 RN 8 |
| pix01 RN 9 |
| pix10 RN 10 |
| pix11 RN 11 |
| |
| Out0100 RN 8 |
| Out1110 RN 10 |
| |
| x00 RN 8 |
| x01 RN 10 |
| x02 RN 12 |
| x10 RN 9 |
| x11 RN 11 |
| x12 RN 14 |
| x20 RN 10 |
| x21 RN 12 |
| x22 RN 14 |
| |
| x01x00 RN 8 |
| x02x01 RN 10 |
| x11x10 RN 9 |
| x12x11 RN 11 |
| x21x20 RN 10 |
| x22x21 RN 12 |
| |
| OutRow00 RN 12 |
| OutRow01 RN 14 |
| OutRow10 RN 10 |
| OutRow11 RN 12 |
| |
| OutRow0100 RN 12 |
| OutRow1110 RN 12 |
| |
| ;//----------------------------------------------------------------------------------------------- |
| ;// armVCM4P10_Interpolate_Chroma_asm starts |
| ;//----------------------------------------------------------------------------------------------- |
| |
| ;// Write function header |
| M_START armVCM4P10_Interpolate_Chroma, r11 |
| |
| ;// Define stack arguments |
| M_ARG Width, 4 |
| M_ARG Height, 4 |
| M_ARG Dx, 4 |
| M_ARG Dy, 4 |
| |
| ;// Load argument from the stack |
| ;// M_STALL ARM1136JS=4 |
| |
| M_LDR iWidth, Width |
| M_LDR iHeight, Height |
| M_LDR dx, Dx |
| M_LDR dy, Dy |
| |
| ;// EightMinusdx = 8 - dx |
| ;// EightMinusdy = 8 - dy |
| |
| ;// ACoeff = EightMinusdx * EightMinusdy |
| ;// BCoeff = dx * EightMinusdy |
| ;// CCoeff = EightMinusdx * dy |
| ;// DCoeff = dx * dy |
| |
| ADD pSrc1, pSrc, iSrcStep |
| SUB temp, iWidth, #1 |
| RSB EightMinusdx, dx, #8 |
| RSB EightMinusdy, dy, #8 |
| CMN dx,dy |
| ADD dxEightMinusdx, EightMinusdx, dx, LSL #16 |
| ORR iWidth, iWidth, temp, LSL #16 |
| |
| ;// Packed Coeffs. |
| |
| MUL BACoeff, dxEightMinusdx, EightMinusdy |
| MUL DCCoeff, dxEightMinusdx, dy |
| |
| |
| ;// Checking either of dx and dy being non-zero |
| |
| BEQ MVIsZero |
| |
| ;// Pixel layout: |
| ;// |
| ;// x00 x01 x02 |
| ;// x10 x11 x12 |
| ;// x20 x21 x22 |
| |
| ;// If fractionl mv is not (0, 0) |
| |
| OuterLoopMVIsNotZero |
| |
| InnerLoopMVIsNotZero |
| |
| LDRB x00, [pSrc, #+0] |
| LDRB x10, [pSrc1, #+0] |
| LDRB x01, [pSrc, #+1] |
| LDRB x11, [pSrc1, #+1] |
| LDRB x02, [pSrc, #+2]! |
| LDRB x12, [pSrc1, #+2]! |
| |
| ORR x01x00, x00, x01, LSL #16 |
| ;// M_STALL ARM1136JS=1 |
| ORR x02x01, x01, x02, LSL #16 |
| MOV r0x20, #32 |
| ORR x11x10, x10, x11, LSL #16 |
| ORR x12x11, x11, x12, LSL #16 |
| |
| SMLAD x01x00, x01x00, BACoeff, r0x20 |
| SMLAD x02x01, x02x01, BACoeff, r0x20 |
| |
| ;// iWidth packed with MSB (top 16 bits) |
| ;// as inner loop counter value i.e |
| ;// (iWidth -1) and LSB (lower 16 bits) |
| ;// as original width |
| |
| SUBS iWidth, iWidth, #1<<17 |
| |
| SMLAD OutRow00, x11x10, DCCoeff, x01x00 |
| SMLAD OutRow01, x12x11, DCCoeff, x02x01 |
| |
| RSB pSrc2, pSrc, pSrc1, LSL #1 |
| |
| MOV OutRow00, OutRow00, LSR #6 |
| MOV OutRow01, OutRow01, LSR #6 |
| |
| LDRB x20,[pSrc2, #-2] |
| |
| ORR OutRow0100, OutRow00, OutRow01, LSL #8 |
| STRH OutRow0100, [pDst], #2 |
| |
| LDRB x21,[pSrc2, #-1] |
| LDRB x22,[pSrc2, #+0] |
| |
| ADD pDst1, pDst, iDstStep |
| |
| ;// M_STALL ARM1136JS=1 |
| |
| ORR x21x20, x20, x21, LSL #16 |
| ORR x22x21, x21, x22, LSL #16 |
| |
| MOV tmp0x20, #32 |
| |
| ;// Reusing the packed data x11x10 and x12x11 |
| |
| SMLAD x11x10, x11x10, BACoeff, tmp0x20 |
| SMLAD x12x11, x12x11, BACoeff, tmp0x20 |
| SMLAD OutRow10, x21x20, DCCoeff, x11x10 |
| SMLAD OutRow11, x22x21, DCCoeff, x12x11 |
| |
| MOV OutRow10, OutRow10, LSR #6 |
| MOV OutRow11, OutRow11, LSR #6 |
| |
| ;// M_STALL ARM1136JS=1 |
| |
| ORR OutRow1110, OutRow10, OutRow11, LSL #8 |
| |
| STRH OutRow1110, [pDst1, #-2] |
| |
| BGT InnerLoopMVIsNotZero |
| |
| SUBS iHeight, iHeight, #2 |
| ADD iWidth, iWidth, #1<<16 |
| RSB iDstStepx2MinusWidth, iWidth, iDstStep, LSL #1 |
| SUB iSrcStep1, pSrc1, pSrc |
| SUB temp, iWidth, #1 |
| RSB iSrcStepx2MinusWidth, iWidth, iSrcStep1, LSL #1 |
| ADD pDst, pDst, iDstStepx2MinusWidth |
| ADD pSrc1, pSrc1, iSrcStepx2MinusWidth |
| ADD pSrc, pSrc, iSrcStepx2MinusWidth |
| ORR iWidth, iWidth, temp, LSL #16 |
| BGT OuterLoopMVIsNotZero |
| MOV return, #OMX_Sts_NoErr |
| M_EXIT |
| |
| ;// If fractionl mv is (0, 0) |
| |
| MVIsZero |
| ;// M_STALL ARM1136JS=4 |
| OuterLoopMVIsZero |
| |
| InnerLoopMVIsZero |
| |
| LDRB pix00, [pSrc], #+1 |
| LDRB pix01, [pSrc], #+1 |
| LDRB pix10, [pSrc1], #+1 |
| LDRB pix11, [pSrc1], #+1 |
| |
| ADD pDst2, pDst, iDstStep |
| SUBS iWidth, iWidth, #1<<17 |
| |
| ORR Out0100, pix00, pix01, LSL #8 |
| ORR Out1110, pix10, pix11, LSL #8 |
| |
| STRH Out0100, [pDst], #2 |
| STRH Out1110, [pDst2], #2 |
| |
| BGT InnerLoopMVIsZero |
| |
| SUBS iHeight, iHeight, #2 |
| ADD iWidth, iWidth, #1<<16 |
| RSB iDstStepx2MinusWidth, iWidth, iDstStep, LSL #1 |
| SUB iSrcStep1, pSrc1, pSrc |
| SUB temp, iWidth, #1 |
| RSB iSrcStepx2MinusWidth, iWidth, iSrcStep1, LSL #1 |
| ADD pDst, pDst, iDstStepx2MinusWidth |
| ADD pSrc1, pSrc1, iSrcStepx2MinusWidth |
| ADD pSrc, pSrc, iSrcStepx2MinusWidth |
| ORR iWidth, iWidth, temp, LSL #16 |
| BGT OuterLoopMVIsZero |
| MOV return, #OMX_Sts_NoErr |
| M_END |
| |
| ENDIF ;// ARM1136JS |
| |
| |
| END |
| |
| ;//----------------------------------------------------------------------------------------------- |
| ;// armVCM4P10_Interpolate_Chroma_asm ends |
| ;//----------------------------------------------------------------------------------------------- |
| |
