10c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 278e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// Copyright (C) 2007-2008 ARM Limited 378e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// 478e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// Licensed under the Apache License, Version 2.0 (the "License"); 578e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// you may not use this file except in compliance with the License. 678e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// You may obtain a copy of the License at 778e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// 878e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// http://www.apache.org/licenses/LICENSE-2.0 978e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// 1078e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// Unless required by applicable law or agreed to in writing, software 1178e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// distributed under the License is distributed on an "AS IS" BASIS, 1278e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1378e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// See the License for the specific language governing permissions and 1478e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// limitations under the License. 1578e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// 1678e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar;// 170c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 180c1bc742181ded4930842b46e9507372f0b1b963James Dong;// File Name: armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe_s.s 190c1bc742181ded4930842b46e9507372f0b1b963James Dong;// OpenMAX DL: v1.0.2 200c1bc742181ded4930842b46e9507372f0b1b963James Dong;// Revision: 9641 210c1bc742181ded4930842b46e9507372f0b1b963James Dong;// Date: Thursday, February 7, 2008 220c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 230c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 240c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 250c1bc742181ded4930842b46e9507372f0b1b963James Dong;// 260c1bc742181ded4930842b46e9507372f0b1b963James Dong 270c1bc742181ded4930842b46e9507372f0b1b963James Dong INCLUDE omxtypes_s.h 280c1bc742181ded4930842b46e9507372f0b1b963James Dong INCLUDE armCOMM_s.h 290c1bc742181ded4930842b46e9507372f0b1b963James Dong 300c1bc742181ded4930842b46e9507372f0b1b963James Dong M_VARIANTS ARM1136JS 310c1bc742181ded4930842b46e9507372f0b1b963James Dong 320c1bc742181ded4930842b46e9507372f0b1b963James Dong EXPORT armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe 330c1bc742181ded4930842b46e9507372f0b1b963James Dong 340c1bc742181ded4930842b46e9507372f0b1b963James Dong 350c1bc742181ded4930842b46e9507372f0b1b963James Dong 360c1bc742181ded4930842b46e9507372f0b1b963James Dong IF ARM1136JS 370c1bc742181ded4930842b46e9507372f0b1b963James Dong 380c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Function header 390c1bc742181ded4930842b46e9507372f0b1b963James Dong 400c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Function: 410c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe 420c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// 430c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Implements vertical interpolation for a block of size 4x4. Input and output should 440c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// be aligned. 450c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// 460c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Registers used as input for this function 470c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// r0,r1,r2,r3 where r0,r2 input pointer and r1,r3 corresponding step size 480c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// 490c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Registers preserved for top level function 500c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// r0,r1,r2,r3,r4,r5,r6,r14 510c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// 520c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Registers modified by the function 530c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// r7,r8,r9,r10,r11,r12 540c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// 550c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// Output registers 560c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// None. Function will preserve r0-r3 570c1bc742181ded4930842b46e9507372f0b1b963James Dong M_START armVCM4P10_InterpolateLuma_HalfVer4x4_unsafe, r6 580c1bc742181ded4930842b46e9507372f0b1b963James Dong 590c1bc742181ded4930842b46e9507372f0b1b963James Dong;// Declare input registers 600c1bc742181ded4930842b46e9507372f0b1b963James DongpSrc RN 0 610c1bc742181ded4930842b46e9507372f0b1b963James DongsrcStep RN 1 620c1bc742181ded4930842b46e9507372f0b1b963James DongpDst RN 2 630c1bc742181ded4930842b46e9507372f0b1b963James DongdstStep RN 3 640c1bc742181ded4930842b46e9507372f0b1b963James Dong 650c1bc742181ded4930842b46e9507372f0b1b963James Dong;// Declare inner loop registers 660c1bc742181ded4930842b46e9507372f0b1b963James DongValA RN 5 670c1bc742181ded4930842b46e9507372f0b1b963James DongValA0 RN 4 680c1bc742181ded4930842b46e9507372f0b1b963James DongValA1 RN 5 690c1bc742181ded4930842b46e9507372f0b1b963James DongValAF0 RN 4 700c1bc742181ded4930842b46e9507372f0b1b963James DongValAF1 RN 5 710c1bc742181ded4930842b46e9507372f0b1b963James Dong 720c1bc742181ded4930842b46e9507372f0b1b963James DongValB RN 11 730c1bc742181ded4930842b46e9507372f0b1b963James Dong 740c1bc742181ded4930842b46e9507372f0b1b963James DongValC RN 5 750c1bc742181ded4930842b46e9507372f0b1b963James DongValC0 RN 4 760c1bc742181ded4930842b46e9507372f0b1b963James DongValC1 RN 5 770c1bc742181ded4930842b46e9507372f0b1b963James DongValCD0 RN 12 780c1bc742181ded4930842b46e9507372f0b1b963James DongValCD1 RN 14 790c1bc742181ded4930842b46e9507372f0b1b963James DongValCF0 RN 4 800c1bc742181ded4930842b46e9507372f0b1b963James DongValCF1 RN 5 810c1bc742181ded4930842b46e9507372f0b1b963James Dong 820c1bc742181ded4930842b46e9507372f0b1b963James DongValD RN 10 830c1bc742181ded4930842b46e9507372f0b1b963James Dong 840c1bc742181ded4930842b46e9507372f0b1b963James DongValE RN 7 850c1bc742181ded4930842b46e9507372f0b1b963James DongValE0 RN 6 860c1bc742181ded4930842b46e9507372f0b1b963James DongValE1 RN 7 870c1bc742181ded4930842b46e9507372f0b1b963James DongValEB0 RN 10 880c1bc742181ded4930842b46e9507372f0b1b963James DongValEB1 RN 11 890c1bc742181ded4930842b46e9507372f0b1b963James DongValED0 RN 6 900c1bc742181ded4930842b46e9507372f0b1b963James DongValED1 RN 7 910c1bc742181ded4930842b46e9507372f0b1b963James Dong 920c1bc742181ded4930842b46e9507372f0b1b963James DongValF RN 10 930c1bc742181ded4930842b46e9507372f0b1b963James Dong 940c1bc742181ded4930842b46e9507372f0b1b963James DongValG RN 14 950c1bc742181ded4930842b46e9507372f0b1b963James DongValG0 RN 12 960c1bc742181ded4930842b46e9507372f0b1b963James DongValG1 RN 14 970c1bc742181ded4930842b46e9507372f0b1b963James DongValGB0 RN 12 980c1bc742181ded4930842b46e9507372f0b1b963James DongValGB1 RN 14 990c1bc742181ded4930842b46e9507372f0b1b963James Dong 1000c1bc742181ded4930842b46e9507372f0b1b963James DongAcc0 RN 4 1010c1bc742181ded4930842b46e9507372f0b1b963James DongAcc1 RN 5 1020c1bc742181ded4930842b46e9507372f0b1b963James DongAcc2 RN 6 1030c1bc742181ded4930842b46e9507372f0b1b963James DongAcc3 RN 7 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong 1050c1bc742181ded4930842b46e9507372f0b1b963James DongTemp RN 7 1060c1bc742181ded4930842b46e9507372f0b1b963James DongHeight RN 3 1070c1bc742181ded4930842b46e9507372f0b1b963James DongStep RN 6 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong 1090c1bc742181ded4930842b46e9507372f0b1b963James DongCounter RN 8 1100c1bc742181ded4930842b46e9507372f0b1b963James Dongr0x00ff00ff RN 9 ;// [0 255 0 255] where 255 is offset 1110c1bc742181ded4930842b46e9507372f0b1b963James Dongr0x0fe00fe0 RN 10 ;// [0 (16*255 - 16) 0 (16*255 - 16)] 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR r0x00ff00ff, =0x00ff00ff ;// [0 255 0 255] 255 is offset to avoid negative results 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong MOV Counter, #2 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong 1170c1bc742181ded4930842b46e9507372f0b1b963James DongTwoRowsLoop 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong M_LDR ValC, [pSrc], srcStep ;// Load [c3 c2 c1 c0] 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong M_LDR ValD, [pSrc], srcStep ;// Load [d3 d2 d1 d0] 1200c1bc742181ded4930842b46e9507372f0b1b963James Dong M_LDR ValE, [pSrc], srcStep ;// Load [e3 e2 e1 e0] 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong SUB pSrc, pSrc, srcStep, LSL #2 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR ValB, [pSrc] ;// Load [b3 b2 b1 b0] 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValC0, r0x00ff00ff, ValC ;// [0 c2 0 c0] + [0 255 0 255] 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValC1, r0x00ff00ff, ValC, ROR #8 ;// [0 c3 0 c1] + [0 255 0 255] 1250c1bc742181ded4930842b46e9507372f0b1b963James Dong 1260c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValE0, r0x00ff00ff, ValE ;// [0 e2 0 e0] + [0 255 0 255] 1270c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValE1, r0x00ff00ff, ValE, ROR #8 ;// [0 e3 0 e1] + [0 255 0 255] 1280c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValCD0, ValC0, ValD ;// [0 c2 0 c0] + [0 255 0 255] + [0 d2 0 d0] 1290c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValCD1, ValC1, ValD, ROR #8 ;// [0 c3 0 c1] + [0 255 0 255] + [0 d3 0 d1] 1300c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValEB0, ValE0, ValB ;// [0 e2 0 e0] + [0 255 0 255] + [0 b2 0 b0] 1310c1bc742181ded4930842b46e9507372f0b1b963James Dong RSB ValCD0, ValEB0, ValCD0, LSL #2 ;// 4*(Off+C+D) - (Off+B+E) 1320c1bc742181ded4930842b46e9507372f0b1b963James Dong 1330c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR ValD, [pSrc, srcStep, LSL #1] ;// Load [d3 d2 d1 d0] 1340c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValEB1, ValE1, ValB, ROR #8 ;// [0 e3 0 e1] + [0 255 0 255] + [0 b3 0 b1] 1350c1bc742181ded4930842b46e9507372f0b1b963James Dong RSB ValCD1, ValEB1, ValCD1, LSL #2 1360c1bc742181ded4930842b46e9507372f0b1b963James Dong ;// One cycle stall 1370c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValED0, ValE0, ValD ;// [0 e2 0 e0] + [0 255 0 255] + [0 d2 0 d0] 1380c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValED1, ValE1, ValD, ROR #8 ;// [0 e3 0 e1] + [0 255 0 255] + [0 d3 0 d1] 1390c1bc742181ded4930842b46e9507372f0b1b963James Dong 1400c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR ValF, [pSrc, srcStep, LSL #2] ;// Load [f3 f2 f1 f0] 1410c1bc742181ded4930842b46e9507372f0b1b963James Dong M_LDR ValB, [pSrc], srcStep ;// Load [b3 b2 b1 b0] 1420c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD ValCD0, ValCD0, ValCD0, LSL #2 ;// 5 * [4*(Off+C+D) - (Off+B+E)] 1430c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD ValCD1, ValCD1, ValCD1, LSL #2 1440c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValCF1, ValC1, ValF, ROR #8 ;// [0 c3 0 c1] + [0 255 0 255] + [0 f3 0 f1] 1450c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValCF0, ValC0, ValF ;// [0 c2 0 c0] + [0 255 0 255] + [0 f2 0 f0] 1460c1bc742181ded4930842b46e9507372f0b1b963James Dong RSB ValED1, ValCF1, ValED1, LSL #2 1470c1bc742181ded4930842b46e9507372f0b1b963James Dong 1480c1bc742181ded4930842b46e9507372f0b1b963James Dong SUB ValA, pSrc, srcStep, LSL #1 1490c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR ValA, [ValA] ;// Load [a3 a2 a1 a0] 1500c1bc742181ded4930842b46e9507372f0b1b963James Dong RSB ValED0, ValCF0, ValED0, LSL #2 ;// 4*(Off+E+D) - (Off+C+F) 1510c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD ValED1, ValED1, ValED1, LSL #2 1520c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD ValED0, ValED0, ValED0, LSL #2 ;// 5 * [4*(Off+E+D) - (Off+C+F)] 1530c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValA0, r0x00ff00ff, ValA ;// [0 a2 0 a0] + [0 255 0 255] 1540c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValA1, r0x00ff00ff, ValA, ROR #8 ;// [0 a3 0 a1] + [0 255 0 255] 1550c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValAF0, ValA0, ValF ;// [0 a2 0 a0] + [0 255 0 255] + [0 f2 0 f0] 1560c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValAF1, ValA1, ValF, ROR #8 ;// [0 a3 0 a1] + [0 255 0 255] + [0 f3 0 f1] 1570c1bc742181ded4930842b46e9507372f0b1b963James Dong 1580c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR r0x0fe00fe0, =0x0fe00fe0 ;// [0 255 0 255] 255 is offset to avoid negative results 1590c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD Acc1, ValCD1, ValAF1 1600c1bc742181ded4930842b46e9507372f0b1b963James Dong 1610c1bc742181ded4930842b46e9507372f0b1b963James Dong LDR ValG, [pSrc, srcStep, LSL #2] ;// Load [g3 g2 g1 g0] 1620c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD Acc0, ValCD0, ValAF0 ;// Acc0 = 16*Off + (A+F) + 20*(C+D) - 5*(B+E) 1630c1bc742181ded4930842b46e9507372f0b1b963James Dong UQSUB16 Acc1, Acc1, r0x0fe00fe0 ;// Acc1 -= (16*Off - 16) 1640c1bc742181ded4930842b46e9507372f0b1b963James Dong UQSUB16 Acc0, Acc0, r0x0fe00fe0 1650c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValG0, r0x00ff00ff, ValG ;// [0 g2 0 g0] + [0 255 0 255] 1660c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValG1, r0x00ff00ff, ValG, ROR #8 ;// [0 g3 0 g1] + [0 255 0 255] 1670c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValGB0, ValG0, ValB ;// [0 g2 0 g0] + [0 255 0 255] + [0 b2 0 b0] 1680c1bc742181ded4930842b46e9507372f0b1b963James Dong UXTAB16 ValGB1, ValG1, ValB, ROR #8 ;// [0 g3 0 g1] + [0 255 0 255] + [0 b3 0 b1] 1690c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD Acc2, ValED0, ValGB0 ;// Acc2 = 16*Off + (B+G) + 20*(D+E) - 5*(C+F) 1700c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD Acc3, ValED1, ValGB1 1710c1bc742181ded4930842b46e9507372f0b1b963James Dong UQSUB16 Acc3, Acc3, r0x0fe00fe0 ;// Acc3 -= (16*Off - 16) 1720c1bc742181ded4930842b46e9507372f0b1b963James Dong UQSUB16 Acc2, Acc2, r0x0fe00fe0 1730c1bc742181ded4930842b46e9507372f0b1b963James Dong USAT16 Acc1, #13, Acc1 ;// Saturate to 8+5 = 13 bits 1740c1bc742181ded4930842b46e9507372f0b1b963James Dong USAT16 Acc0, #13, Acc0 1750c1bc742181ded4930842b46e9507372f0b1b963James Dong USAT16 Acc3, #13, Acc3 1760c1bc742181ded4930842b46e9507372f0b1b963James Dong USAT16 Acc2, #13, Acc2 1770c1bc742181ded4930842b46e9507372f0b1b963James Dong AND Acc1, r0x00ff00ff, Acc1, LSR #5 ;// [0 a3 0 a1] 1780c1bc742181ded4930842b46e9507372f0b1b963James Dong AND Acc0, r0x00ff00ff, Acc0, LSR #5 ;// [0 a2 0 a0] 1790c1bc742181ded4930842b46e9507372f0b1b963James Dong ORR Acc0, Acc0, Acc1, LSL #8 ;// [a3 a2 a1 a0] 1800c1bc742181ded4930842b46e9507372f0b1b963James Dong AND Acc3, r0x00ff00ff, Acc3, LSR #5 ;// [0 b3 0 b1] 1810c1bc742181ded4930842b46e9507372f0b1b963James Dong AND Acc2, r0x00ff00ff, Acc2, LSR #5 ;// [0 b2 0 b0] 1820c1bc742181ded4930842b46e9507372f0b1b963James Dong 1830c1bc742181ded4930842b46e9507372f0b1b963James Dong M_STR Acc0, [pDst], dstStep ;// Store result & adjust pointer 1840c1bc742181ded4930842b46e9507372f0b1b963James Dong ORR Acc2, Acc2, Acc3, LSL #8 ;// [b3 b2 b1 b0] 1850c1bc742181ded4930842b46e9507372f0b1b963James Dong M_STR Acc2, [pDst], dstStep ;// Store result & adjust pointer 1860c1bc742181ded4930842b46e9507372f0b1b963James Dong ADD pSrc, pSrc, srcStep, LSL #1 1870c1bc742181ded4930842b46e9507372f0b1b963James Dong 1880c1bc742181ded4930842b46e9507372f0b1b963James Dong SUBS Counter, Counter, #1 1890c1bc742181ded4930842b46e9507372f0b1b963James Dong BGT TwoRowsLoop 1900c1bc742181ded4930842b46e9507372f0b1b963James DongEnd 1910c1bc742181ded4930842b46e9507372f0b1b963James Dong SUB pDst, pDst, dstStep, LSL #2 1920c1bc742181ded4930842b46e9507372f0b1b963James Dong SUB pSrc, pSrc, srcStep, LSL #2 1930c1bc742181ded4930842b46e9507372f0b1b963James Dong 1940c1bc742181ded4930842b46e9507372f0b1b963James Dong M_END 1950c1bc742181ded4930842b46e9507372f0b1b963James Dong 1960c1bc742181ded4930842b46e9507372f0b1b963James Dong ENDIF 1970c1bc742181ded4930842b46e9507372f0b1b963James Dong 1980c1bc742181ded4930842b46e9507372f0b1b963James Dong END 19978e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar 200