/* * VP8 ARMv6 optimisations * * Copyright (c) 2010 Google Inc. * Copyright (c) 2010 Rob Clark * Copyright (c) 2011 Mans Rullgard * * This file is part of Libav. * * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * This code was partially ported from libvpx, which uses this license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * * Neither the name of Google nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "libavutil/arm/asm.S" @ idct @ void vp8_luma_dc_wht(int16_t block[4][4][16], int16_t dc[16]) function ff_vp8_luma_dc_wht_armv6, export=1 push {r4-r10, lr} ldm r1, {r2-r9} mov r10, #0 mov lr, #0 uadd16 r12, r2, r8 @ t0[0,1] usub16 r2, r2, r8 @ t3[0,1] stm r1!, {r10, lr} uadd16 r8, r4, r6 @ t1[0,1] usub16 r4, r4, r6 @ t2[0,1] stm r1!, {r10, lr} uadd16 r6, r12, r8 @ dc0[0,1] usub16 r12, r12, r8 @ dc2[0,1] stm r1!, {r10, lr} uadd16 r8, r2, r4 @ dc1[0,1] usub16 r2, r2, r4 @ dc3[0,1] stm r1!, {r10, lr} uadd16 lr, r3, r9 @ t0[2,3] usub16 r3, r3, r9 @ t3[2,3] uadd16 r9, r5, r7 @ t1[2,3] usub16 r5, r5, r7 @ t2[2,3] uadd16 r7, lr, r9 @ dc0[2,3] usub16 lr, lr, r9 @ dc2[2,3] uadd16 r9, r3, r5 @ dc1[2,3] usub16 r3, r3, r5 @ dc3[2,3] mov r1, #3 orr r1, r1, #0x30000 @ 3 | 3 (round) pkhbt r4, r6, r8, lsl #16 @ dc{0,1}[0] pkhtb r6, r8, r6, asr #16 @ dc{0,1}[1] pkhbt r5, r12, r2, lsl #16 @ dc{2,3}[0] pkhtb r12, r2, r12, asr #16 @ dc{2,3}[1] pkhbt r8, r7, r9, lsl #16 @ dc{0,1}[2] uadd16 r4, r4, r1 uadd16 r5, r5, r1 pkhtb r7, r9, r7, asr #16 @ dc{0,1}[3] pkhbt r2, lr, r3, lsl #16 @ dc{2,3}[2] pkhtb lr, r3, lr, asr #16 @ dc{2,3}[3] uadd16 r9, r4, r7 @ t0[0,1] uadd16 r3, r5, lr @ t0[2,3] usub16 r4, r4, r7 @ t3[0,1] usub16 r5, r5, lr @ t3[2,3] uadd16 r7, r6, r8 @ t1[0,1] uadd16 lr, r12, r2 @ t1[2,3] usub16 r6, r6, r8 @ t2[0,1] usub16 r12, r12, r2 @ t2[2,3] uadd16 r8, r9, r7 @ block[0,1][0] uadd16 r2, r3, lr @ block[2,3][0] usub16 r9, r9, r7 @ block[0,1][2] usub16 r3, r3, lr @ block[2,3][2] uadd16 r7, r4, r6 @ block[0,1][1] uadd16 lr, r5, r12 @ block[2,3][1] usub16 r4, r4, r6 @ block[0,1][3] usub16 r5, r5, r12 @ block[2,3][3] #if HAVE_ARMV6T2_EXTERNAL sbfx r6, r8, #3, #13 sbfx r12, r7, #3, #13 sbfx r1, r9, #3, #13 sbfx r10, r4, #3, #13 #else sxth r8, r8 sxth r7, r7 sxth r9, r9 sxth r4, r4 asr r8, #3 @ block[0][0] asr r7, #3 @ block[0][1] asr r9, #3 @ block[0][2] asr r4, #3 @ block[0][3] #endif strh r6, [r0], #32 asr r8, r8, #19 @ block[1][0] strh r12, [r0], #32 asr r7, r7, #19 @ block[1][1] strh r1, [r0], #32 asr r9, r9, #19 @ block[1][2] strh r10, [r0], #32 asr r4, r4, #19 @ block[1][3] strh r8, [r0], #32 asr r6, r2, #19 @ block[3][0] strh r7, [r0], #32 asr r12, lr, #19 @ block[3][1] strh r9, [r0], #32 asr r1, r3, #19 @ block[3][2] strh r4, [r0], #32 asr r10, r5, #19 @ block[3][3] #if HAVE_ARMV6T2_EXTERNAL sbfx r2, r2, #3, #13 sbfx lr, lr, #3, #13 sbfx r3, r3, #3, #13 sbfx r5, r5, #3, #13 #else sxth r2, r2 sxth lr, lr sxth r3, r3 sxth r5, r5 asr r2, #3 @ block[2][0] asr lr, #3 @ block[2][1] asr r3, #3 @ block[2][2] asr r5, #3 @ block[2][3] #endif strh r2, [r0], #32 strh lr, [r0], #32 strh r3, [r0], #32 strh r5, [r0], #32 strh r6, [r0], #32 strh r12, [r0], #32 strh r1, [r0], #32 strh r10, [r0], #32 pop {r4-r10, pc} endfunc @ void vp8_luma_dc_wht_dc(int16_t block[4][4][16], int16_t dc[16]) function ff_vp8_luma_dc_wht_dc_armv6, export=1 ldrsh r2, [r1] mov r3, #0 add r2, r2, #3 strh r3, [r1] asr r2, r2, #3 .rept 16 strh r2, [r0], #32 .endr bx lr endfunc @ void vp8_idct_add(uint8_t *dst, int16_t block[16], int stride) function ff_vp8_idct_add_armv6, export=1 push {r4-r12, lr} sub sp, sp, #32 movw r3, #20091 @ cospi8sqrt2minus1 movw r4, #35468 @ sinpi8sqrt2 mov r5, sp 1: ldr r6, [r1, #8] @ i5 | i4 = block1[1] | block1[0] ldr lr, [r1, #16] @ i9 | i8 = block2[1] | block2[0] ldr r12, [r1, #24] @ i13 | i12 = block3[1] | block3[0] smulwt r9, r3, r6 @ ip[5] * cospi8sqrt2minus1 smulwb r7, r3, r6 @ ip[4] * cospi8sqrt2minus1 smulwt r10, r4, r6 @ ip[5] * sinpi8sqrt2 smulwb r8, r4, r6 @ ip[4] * sinpi8sqrt2 pkhbt r7, r7, r9, lsl #16 @ 5c | 4c smulwt r11, r3, r12 @ ip[13] * cospi8sqrt2minus1 pkhbt r8, r8, r10, lsl #16 @ 5s | 4s = t2 first half uadd16 r6, r6, r7 @ 5c+5 | 4c+4 = t3 first half smulwb r9, r3, r12 @ ip[12] * cospi8sqrt2minus1 smulwt r7, r4, r12 @ ip[13] * sinpi8sqrt2 smulwb r10, r4, r12 @ ip[12] * sinpi8sqrt2 pkhbt r9, r9, r11, lsl #16 @ 13c | 12c ldr r11, [r1] @ i1 | i0 pkhbt r10, r10, r7, lsl #16 @ 13s | 12s = t3 second half uadd16 r7, r12, r9 @ 13c+13 | 12c+12 = t2 2nd half uadd16 r6, r6, r10 @ d = t3 uadd16 r10, r11, lr @ a = t0 usub16 r7, r8, r7 @ c = t2 usub16 r8, r11, lr @ b = t1 uadd16 r9, r10, r6 @ a+d = tmp{0,1}[0] usub16 r10, r10, r6 @ a-d = tmp{0,1}[3] uadd16 r6, r8, r7 @ b+c = tmp{0,1}[1] usub16 r7, r8, r7 @ b-c = tmp{0,1}[2] mov r8, #0 cmp sp, r5 str r6, [r5, #8] @ o5 | o4 str r7, [r5, #16] @ o9 | o8 str r10, [r5, #24] @ o13 | o12 str r9, [r5], #4 @ o1 | o0 str r8, [r1, #8] str r8, [r1, #16] str r8, [r1, #24] str r8, [r1], #4 beq 1b mov r5, #2 2: pop {r1, r6, r12, lr} smulwt r9, r3, r12 @ ip[5] * cospi8sqrt2minus1 smulwt r7, r3, r1 @ ip[1] * cospi8sqrt2minus1 smulwt r10, r4, r12 @ ip[5] * sinpi8sqrt2 smulwt r8, r4, r1 @ ip[1] * sinpi8sqrt2 pkhbt r11, r1, r12, lsl #16 @ i4 | i0 = t0/t1 first half pkhtb r1, r12, r1, asr #16 @ i5 | i1 pkhbt r7, r7, r9, lsl #16 @ 5c | 1c pkhbt r8, r8, r10, lsl #16 @ 5s | 1s = t2 first half pkhbt r9, r6, lr, lsl #16 @ i6 | i2 = t0/t1 second half pkhtb r12, lr, r6, asr #16 @ i7 | i3 uadd16 r1, r7, r1 @ 5c+5 | 1c+1 = t3 first half uadd16 r10, r11, r9 @ a = t0 usub16 r9, r11, r9 @ b = t1 smulwt r7, r3, r12 @ ip[7] * cospi8sqrt2minus1 smulwb lr, r3, r12 @ ip[3] * cospi8sqrt2minus1 smulwt r11, r4, r12 @ ip[7] * sinpi8sqrt2 smulwb r6, r4, r12 @ ip[3] * sinpi8sqrt2 subs r5, r5, #1 pkhbt r7, lr, r7, lsl #16 @ 7c | 3c pkhbt r11, r6, r11, lsl #16 @ 7s | 3s = t3 second half mov r6, #0x4 orr r6, r6, #0x40000 uadd16 r12, r7, r12 @ 7c+7 | 3c+3 = t2 second half uadd16 r10, r10, r6 @ t0 + 4 uadd16 r9, r9, r6 @ t1 + 4 usub16 lr, r8, r12 @ c (o5 | o1) = t2 uadd16 r12, r11, r1 @ d (o7 | o3) = t3 usub16 r1, r9, lr @ b-c = dst{0,1}[2] uadd16 r7, r10, r12 @ a+d = dst{0,1}[0] usub16 r12, r10, r12 @ a-d = dst{0,1}[3] uadd16 r10, r9, lr @ b+c = dst{0,1}[1] asr lr, r1, #3 @ o[1][2] asr r9, r12, #3 @ o[1][3] pkhtb r8, lr, r7, asr #19 @ o[1][0,2] pkhtb r11, r9, r10, asr #19 @ o[1][1,3] ldr lr, [r0] sxth r12, r12 ldr r9, [r0, r2] sxth r1, r1 #if HAVE_ARMV6T2_EXTERNAL sbfx r7, r7, #3, #13 sbfx r10, r10, #3, #13 #else sxth r7, r7 sxth r10, r10 asr r7, #3 @ o[0][0] asr r10, #3 @ o[0][1] #endif pkhbt r7, r7, r1, lsl #13 @ o[0][0,2] pkhbt r10, r10, r12, lsl #13 @ o[0][1,3] uxtab16 r7, r7, lr uxtab16 r10, r10, lr, ror #8 uxtab16 r8, r8, r9 uxtab16 r11, r11, r9, ror #8 usat16 r7, #8, r7 usat16 r10, #8, r10 usat16 r8, #8, r8 usat16 r11, #8, r11 orr r7, r7, r10, lsl #8 orr r8, r8, r11, lsl #8 str r8, [r0, r2] str_post r7, r0, r2, lsl #1 bne 2b pop {r4-r12, pc} endfunc @ void vp8_idct_dc_add(uint8_t *dst, int16_t block[16], int stride) function ff_vp8_idct_dc_add_armv6, export=1 push {r4-r6, lr} add r6, r0, r2, lsl #1 ldrsh r3, [r1] mov r4, #0 add r3, r3, #4 strh r4, [r1], #32 asr r3, #3 ldr r5, [r0] ldr r4, [r0, r2] pkhbt r3, r3, r3, lsl #16 uxtab16 lr, r3, r5 @ a1+2 | a1+0 uxtab16 r5, r3, r5, ror #8 @ a1+3 | a1+1 uxtab16 r12, r3, r4 uxtab16 r4, r3, r4, ror #8 usat16 lr, #8, lr usat16 r5, #8, r5 usat16 r12, #8, r12 usat16 r4, #8, r4 orr lr, lr, r5, lsl #8 ldr r5, [r6] orr r12, r12, r4, lsl #8 ldr r4, [r6, r2] str lr, [r0] uxtab16 lr, r3, r5 str r12, [r0, r2] uxtab16 r5, r3, r5, ror #8 uxtab16 r12, r3, r4 uxtab16 r4, r3, r4, ror #8 usat16 lr, #8, lr usat16 r5, #8, r5 usat16 r12, #8, r12 usat16 r4, #8, r4 orr lr, lr, r5, lsl #8 orr r12, r12, r4, lsl #8 str lr, [r6] str r12, [r6, r2] pop {r4-r6, pc} endfunc @ void vp8_idct_dc_add4uv(uint8_t *dst, int16_t block[4][16], int stride) function ff_vp8_idct_dc_add4uv_armv6, export=1 push {r4, lr} bl ff_vp8_idct_dc_add_armv6 add r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 add r0, r0, r2, lsl #2 sub r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 add r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 pop {r4, pc} endfunc @ void vp8_idct_dc_add4y(uint8_t *dst, int16_t block[4][16], int stride) function ff_vp8_idct_dc_add4y_armv6, export=1 push {r4, lr} bl ff_vp8_idct_dc_add_armv6 add r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 add r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 add r0, r0, #4 bl ff_vp8_idct_dc_add_armv6 pop {r4, pc} endfunc @ loopfilter .macro transpose o3, o2, o1, o0, i0, i1, i2, i3 uxtb16 \o1, \i1 @ xx 12 xx 10 uxtb16 \o0, \i0 @ xx 02 xx 00 uxtb16 \o3, \i3 @ xx 32 xx 30 uxtb16 \o2, \i2 @ xx 22 xx 20 orr \o1, \o0, \o1, lsl #8 @ 12 02 10 00 orr \o3, \o2, \o3, lsl #8 @ 32 22 30 20 uxtb16 \i1, \i1, ror #8 @ xx 13 xx 11 uxtb16 \i3, \i3, ror #8 @ xx 33 xx 31 uxtb16 \i0, \i0, ror #8 @ xx 03 xx 01 uxtb16 \i2, \i2, ror #8 @ xx 23 xx 21 orr \i0, \i0, \i1, lsl #8 @ 13 03 11 01 orr \i2, \i2, \i3, lsl #8 @ 33 23 31 21 pkhtb \o2, \o3, \o1, asr #16 @ 32 22 12 02 pkhbt \o0, \o1, \o3, lsl #16 @ 30 20 10 00 pkhtb \o3, \i2, \i0, asr #16 @ 33 23 13 03 pkhbt \o1, \i0, \i2, lsl #16 @ 31 21 11 01 .endm .macro simple_filter uqsub8 r7, r3, r6 @ p1 - q1 uqsub8 r8, r6, r3 @ q1 - p1 uqsub8 r10, r4, r5 @ p0 - q0 uqsub8 r9, r5, r4 @ q0 - p0 orr r7, r7, r8 @ abs(p1 - q1) orr r9, r9, r10 @ abs(p0 - q0) uhadd8 r7, r7, lr @ abs(p1 - q2) >> 1 uqadd8 r9, r9, r9 @ abs(p0 - q0) * 2 uqadd8 r7, r7, r9 @ abs(p0 - q0)*2 + abs(p1-q1)/2 mvn r8, #0 usub8 r10, r12, r7 @ compare to flimit sel r10, r8, lr @ filter mask: F or 0 cmp r10, #0 beq 2f eor r3, r3, r2 @ ps1 eor r6, r6, r2 @ qs1 eor r4, r4, r2 @ ps0 eor r5, r5, r2 @ qs0 qsub8 r3, r3, r6 @ vp8_filter = p1 - q1 qsub8 r6, r5, r4 @ q0 - p0 qadd8 r3, r3, r6 @ += q0 - p0 lsr r7, r2, #5 @ 0x04040404 qadd8 r3, r3, r6 @ += q0 - p0 sub r9, r7, r2, lsr #7 @ 0x03030303 qadd8 r3, r3, r6 @ vp8_filter = p1-q1 + 3*(q0-p0) and r3, r3, r10 @ vp8_filter &= mask qadd8 r9, r3, r9 @ Filter2 = vp8_filter + 3 qadd8 r3, r3, r7 @ Filter1 = vp8_filter + 4 shadd8 r9, r9, lr shadd8 r3, r3, lr shadd8 r9, r9, lr shadd8 r3, r3, lr shadd8 r9, r9, lr @ Filter2 >>= 3 shadd8 r3, r3, lr @ Filter1 >>= 3 qadd8 r4, r4, r9 @ u = p0 + Filter2 qsub8 r5, r5, r3 @ u = q0 - Filter1 eor r4, r4, r2 @ *op0 = u ^ 0x80 eor r5, r5, r2 @ *oq0 = u ^ 0x80 .endm @ void vp8_v_loop_filter16_simple(uint8_t *dst, int stride, int flim) function ff_vp8_v_loop_filter16_simple_armv6, export=1 push {r4-r11, lr} orr r2, r2, r2, lsl #16 mov r11, #4 mov lr, #0 orr r12, r2, r2, lsl #8 mov32 r2, 0x80808080 1: ldr_nreg r3, r0, r1, lsl #1 @ p1 ldr_nreg r4, r0, r1 @ p0 ldr r5, [r0] @ q0 ldr r6, [r0, r1] @ q1 simple_filter T sub r7, r0, r1 str r5, [r0] @ oq0 A str r4, [r0, -r1] @ op0 T str r4, [r7] 2: subs r11, r11, #1 add r0, r0, #4 bne 1b pop {r4-r11, pc} endfunc .macro filter_mask_p uqsub8 r6, r9, r10 @ p3 - p2 uqsub8 r7, r10, r9 @ p2 - p3 uqsub8 r8, r10, r11 @ p2 - p1 uqsub8 r10, r11, r10 @ p1 - p2 orr r6, r6, r7 @ abs(p3-p2) orr r8, r8, r10 @ abs(p2-p1) uqsub8 lr, r6, r2 @ compare to limit uqsub8 r8, r8, r2 @ compare to limit uqsub8 r6, r11, r12 @ p1 - p0 orr lr, lr, r8 uqsub8 r7, r12, r11 @ p0 - p1 orr r6, r6, r7 @ abs(p1-p0) uqsub8 r7, r6, r2 @ compare to limit uqsub8 r8, r6, r3 @ compare to thresh orr lr, lr, r7 .endm .macro filter_mask_pq uqsub8 r6, r11, r10 @ p1 - q1 uqsub8 r7, r10, r11 @ q1 - p1 uqsub8 r11, r12, r9 @ p0 - q0 uqsub8 r12, r9, r12 @ q0 - p0 orr r6, r6, r7 @ abs(p1-q1) orr r12, r11, r12 @ abs(p0-q0) mov32 r7, 0x7f7f7f7f uqadd8 r12, r12, r12 @ abs(p0-q0) * 2 and r6, r7, r6, lsr #1 @ abs(p1-q1) / 2 uqadd8 r12, r12, r6 @ abs(p0-q0) * 2 + abs(p1-q1)/2 .endm .macro filter_mask_v filter_mask_p ldr r10, [r0, r1] @ q1 ldr_post r9, r0, r1, lsl #1 @ q0 filter_mask_pq ldr r11, [r0] @ q2 uqsub8 r7, r9, r10 @ q0 - q1 uqsub8 r6, r10, r9 @ q1 - q0 uqsub8 r12, r12, r4 @ compare to flimit uqsub8 r9, r11, r10 @ q2 - q1 uqsub8 r10, r10, r11 @ q1 - q2 orr lr, lr, r12 ldr r12, [r0, r1] @ q3 orr r6, r7, r6 @ abs(q1-q0) orr r10, r9, r10 @ abs(q2-q1) uqsub8 r9, r12, r11 @ q3 - q2 uqsub8 r11, r11, r12 @ q2 - q3 uqsub8 r7, r6, r2 @ compare to limit uqsub8 r10, r10, r2 @ compare to limit uqsub8 r6, r6, r3 @ compare to thresh orr r9, r9, r11 @ abs(q3-q2) orr lr, lr, r7 orr lr, lr, r10 uqsub8 r9, r9, r2 @ compare to limit orr lr, lr, r9 mov r12, #0 usub8 lr, r12, lr mvn r11, #0 sel lr, r11, r12 @ filter mask sub r0, r0, r1, lsl #1 .endm .macro filter_mask_h transpose r12, r11, r10, r9, r6, r7, r8, lr filter_mask_p stm sp, {r8, r11, r12, lr} sub r0, r0, r1, lsl #2 add r0, r0, #4 ldr r7, [r0, r1] ldr_post r6, r0, r1, lsl #1 ldr lr, [r0, r1] ldr r8, [r0] transpose r12, r11, r10, r9, r6, r7, r8, lr uqsub8 r8, r12, r11 @ q3 - q2 uqsub8 lr, r11, r12 @ q2 - q3 uqsub8 r7, r9, r10 @ q0 - q1 uqsub8 r6, r10, r9 @ q1 - q0 uqsub8 r12, r11, r10 @ q2 - q1 uqsub8 r11, r10, r11 @ q1 - q2 orr r8, r8, lr @ abs(q3-q2) orr r6, r7, r6 @ abs(q1-q0) orr r11, r12, r11 @ abs(q2-q1) ldr lr, [sp, #12] @ load back (f)limit accumulator uqsub8 r8, r8, r2 @ compare to limit uqsub8 r7, r6, r2 @ compare to limit uqsub8 r11, r11, r2 @ compare to limit orr lr, lr, r8 uqsub8 r8, r6, r3 @ compare to thresh orr lr, lr, r7 ldr r12, [sp, #8] @ p1 orr lr, lr, r11 ldr r11, [sp, #4] @ p0 filter_mask_pq mov r10, #0 uqsub8 r12, r12, r4 @ compare to flimit mvn r11, #0 orr lr, lr, r12 usub8 lr, r10, lr sel lr, r11, r10 @ filter mask .endm .macro filter inner mov32 r12, 0x80808080 eor r11, r7, r12 @ ps1 eor r8, r8, r12 @ ps0 eor r9, r9, r12 @ qs0 eor r10, r10, r12 @ qs1 stm sp, {r8-r11} qsub8 r7, r11, r10 @ vp8_signed_char_clamp(ps1-qs1) qsub8 r8, r9, r8 @ vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0)) .if \inner and r7, r7, r6 @ vp8_filter &= hev .endif qadd8 r7, r7, r8 lsr r10, r12, #5 @ 0x04040404 qadd8 r7, r7, r8 sub r9, r10, r12, lsr #7 @ 0x03030303 qadd8 r7, r7, r8 and r7, r7, lr @ vp8_filter &= mask .if !\inner mov r12, r7 @ Filter2 and r7, r7, r6 @ Filter2 &= hev .endif qadd8 lr, r7, r9 @ Filter2 = vp8_signed_char_clamp(vp8_filter+3) qadd8 r7, r7, r10 @ Filter1 = vp8_signed_char_clamp(vp8_filter+4) mov r9, #0 shadd8 lr, lr, r9 @ Filter2 >>= 3 shadd8 r7, r7, r9 @ Filter1 >>= 3 shadd8 lr, lr, r9 shadd8 r7, r7, r9 shadd8 lr, lr, r9 @ Filter2 shadd8 r7, r7, r9 @ Filter1 .endm .macro filter_v inner orr r10, r6, r8 @ calculate vp8_hevmask ldr_nreg r7, r0, r1, lsl #1 @ p1 usub8 r10, r12, r10 ldr_nreg r8, r0, r1 @ p0 sel r6, r12, r11 @ obtain vp8_hevmask ldr r9, [r0] @ q0 ldr r10, [r0, r1] @ q1 filter \inner .endm .macro filter_h inner orr r9, r6, r8 usub8 r9, r12, r9 sel r6, r12, r11 @ hev mask stm sp, {r6, lr} ldr_nreg r12, r0, r1, lsl #1 ldr_nreg r11, r0, r1 ldr r6, [r0] ldr lr, [r0, r1] transpose r10, r9, r8, r7, r12, r11, r6, lr ldm sp, {r6, lr} filter \inner .endm .macro filter_inner ldm sp, {r8, r9} lsr r10, r10, #2 @ 0x01010101 qadd8 r8, r8, lr @ u = vp8_signed_char_clamp(ps0 + Filter2) mov lr, #0 qsub8 r9, r9, r7 @ u = vp8_signed_char_clamp(qs0 - Filter1) sadd8 r7, r7, r10 @ vp8_filter += 1 ldr r10, [sp, #8] @ qs1 shadd8 r7, r7, lr @ vp8_filter >>= 1 eor r8, r8, r12 @ *op0 = u ^ 0x80 bic r7, r7, r6 @ vp8_filter &= ~hev qadd8 r11, r11, r7 @ u = vp8_signed_char_clamp(ps1 + vp8_filter) eor r9, r9, r12 @ *oq0 = u ^ 0x80 qsub8 r10, r10, r7 @ u = vp8_signed_char_clamp(qs1 - vp8_filter) eor r11, r11, r12 @ *op1 = u ^ 0x80 eor r10, r10, r12 @ *oq1 = u ^ 0x80 .endm .macro filter_x c0 mov lr, \c0 mov r7, #63 sxtb16 r6, r12 sxtb16 r10, r12, ror #8 smlabb r8, r6, lr, r7 smlatb r6, r6, lr, r7 smlabb r7, r10, lr, r7 smultb r10, r10, lr ssat r8, #8, r8, asr #7 ssat r6, #8, r6, asr #7 add r10, r10, #63 ssat r7, #8, r7, asr #7 ssat r10, #8, r10, asr #7 pkhbt r6, r8, r6, lsl #16 pkhbt r10, r7, r10, lsl #16 uxtb16 r6, r6 uxtb16 r10, r10 mov32 lr, 0x80808080 orr r10, r6, r10, lsl #8 @ u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7) qsub8 r8, r9, r10 @ s = vp8_signed_char_clamp(qs0 - u) qadd8 r10, r11, r10 @ s = vp8_signed_char_clamp(ps0 + u) eor r8, r8, lr @ *oq0 = s ^ 0x80 eor r10, r10, lr @ *op0 = s ^ 0x80 .endm .macro filter_1 ldm sp, {r8, r9} qadd8 r11, r8, lr qsub8 r9, r9, r7 bic r12, r12, r6 @ vp8_filter &= ~hev filter_x #27 .endm .macro filter_2 ldr r9, [sp, #8] @ qs1 ldr r11, [sp, #12] @ ps1 filter_x #18 .endm .macro filter_3 eor r9, r9, lr eor r11, r11, lr filter_x #9 .endm function vp8_v_loop_filter_inner_armv6 mov r5, #4 sub sp, sp, #16 orr r2, r2, r2, lsl #16 orr r3, r3, r3, lsl #16 orr r6, r6, r6, lsl #16 orr r4, r2, r2, lsl #8 @ flimE orr r2, r3, r3, lsl #8 @ flimI orr r3, r6, r6, lsl #8 @ thresh 1: sub r0, r0, r1, lsl #2 ldr r10, [r0, r1] @ p2 ldr_post r9, r0, r1, lsl #1 @ p3 ldr r12, [r0, r1] @ p0 ldr_post r11, r0, r1, lsl #1 @ p1 filter_mask_v cmp lr, #0 beq 2f filter_v inner=1 filter_inner A str r11, [r0, -r1, lsl #1] @ op1 A str r8, [r0, -r1] @ op0 T sub r0, r0, r1, lsl #1 T str r8, [r0, r1] T str_post r11, r0, r1, lsl #1 str r9, [r0] @ oq0 str r10, [r0, r1] @ oq1 2: add r0, r0, #4 cmp r5, #3 it eq ldreq r0, [sp, #16] subs r5, r5, #1 bne 1b add sp, sp, #16 pop {r0, r4-r11, pc} endfunc function ff_vp8_v_loop_filter16_inner_armv6, export=1 push {r4-r11, lr} add r12, r0, #8 push {r12} ldr r6, [sp, #40] orr r2, r2, r2, lsl #16 b vp8_v_loop_filter_inner_armv6 endfunc function ff_vp8_v_loop_filter8uv_inner_armv6, export=1 push {r1, r4-r11, lr} mov r1, r2 orr r2, r3, r3, lsl #16 ldr r3, [sp, #40] ldr r6, [sp, #44] b vp8_v_loop_filter_inner_armv6 endfunc function vp8_v_loop_filter_armv6 mov r5, #4 sub sp, sp, #16 orr r3, r3, r3, lsl #16 orr r6, r6, r6, lsl #16 orr r4, r2, r2, lsl #8 @ flimE orr r2, r3, r3, lsl #8 @ flimI orr r3, r6, r6, lsl #8 @ thresh 1: sub r0, r0, r1, lsl #2 ldr r10, [r0, r1] @ p2 ldr_post r9, r0, r1, lsl #1 @ p3 ldr r12, [r0, r1] @ p0 ldr_post r11, r0, r1, lsl #1 @ p1 filter_mask_v cmp lr, #0 beq 2f filter_v inner=0 filter_1 str r8, [r0] @ *oq0 A str r10, [r0, -r1] @ *op0 T sub r0, r0, r1, lsl #1 T str r10, [r0, r1] filter_2 A str r10, [r0, -r1, lsl #1] @ *op1 T str_post r10, r0, r1, lsl #1 str r8, [r0, r1] @ *oq1 ldr r9, [r0, r1, lsl #1] @ q2 add r0, r0, r1 A ldr r11, [r0, -r1, lsl #2] @ p2 T ldr_dpre r11, r0, r1, lsl #2 filter_3 A str r10, [r0, -r1, lsl #2] @ *op2 T str_post r10, r0, r1, lsl #2 str r8, [r0, r1] @ *oq2 sub r0, r0, r1 2: add r0, r0, #4 cmp r5, #3 it eq ldreq r0, [sp, #16] subs r5, r5, #1 bne 1b add sp, sp, #16 pop {r0, r4-r11, pc} endfunc function ff_vp8_v_loop_filter16_armv6, export=1 push {r4-r11, lr} add r12, r0, #8 push {r12} ldr r6, [sp, #40] orr r2, r2, r2, lsl #16 b vp8_v_loop_filter_armv6 endfunc function ff_vp8_v_loop_filter8uv_armv6, export=1 push {r1, r4-r11, lr} mov r1, r2 orr r2, r3, r3, lsl #16 ldr r3, [sp, #40] ldr r6, [sp, #44] b vp8_v_loop_filter_armv6 endfunc @ void vp8_h_loop_filter16_simple(uint8_t *dst, int stride, int flim) function ff_vp8_h_loop_filter16_simple_armv6, export=1 push {r4-r11, lr} orr r12, r2, r2, lsl #16 mov32 r2, 0x80808080 orr r12, r12, r12, lsl #8 mov lr, #0 mov r11, #4 1: sub r0, r0, #2 ldr r8, [r0, r1] ldr_post r7, r0, r1, lsl #1 ldr r10, [r0, r1] ldr_post r9, r0, r1, lsl #1 add r0, r0, #2 transpose r6, r5, r4, r3, r7, r8, r9, r10 simple_filter sub r0, r0, r1, lsl #2 sub r0, r0, #1 uxtb16 r6, r4 uxtb16 r8, r5 uxtb16 r7, r4, ror #8 uxtb16 r9, r5, ror #8 orr r6, r6, r8, lsl #8 orr r7, r7, r9, lsl #8 lsr r4, r6, #16 lsr r5, r7, #16 strh_post r6, r0, r1 strh_post r7, r0, r1 strh_post r4, r0, r1 strh_post r5, r0, r1 add r0, r0, #1 2: subs r11, r11, #1 bne 1b pop {r4-r11, pc} endfunc function vp8_h_loop_filter_inner_armv6 mov r5, #4 sub sp, sp, #16 orr r3, r3, r3, lsl #16 orr r9, r9, r9, lsl #16 orr r4, r2, r2, lsl #8 @ flimE orr r2, r3, r3, lsl #8 @ flimI orr r3, r9, r9, lsl #8 @ thresh sub r0, r0, #4 1: ldr r7, [r0, r1] ldr_post r6, r0, r1, lsl #1 ldr lr, [r0, r1] ldr_post r8, r0, r1, lsl #1 filter_mask_h cmp lr, #0 sub r0, r0, #2 beq 2f ldr r6, [sp] filter_h inner=1 filter_inner transpose lr, r12, r7, r6, r11, r8, r9, r10 A str r6, [r0, -r1, lsl #1] A str r7, [r0, -r1] T sub r0, r0, r1, lsl #1 T str r7, [r0, r1] T str_post r6, r0, r1, lsl #1 str r12, [r0] str lr, [r0, r1] 2: sub r0, r0, #2 add r0, r0, r1, lsl #1 cmp r5, #3 it eq ldreq r0, [sp, #16] subs r5, r5, #1 bne 1b add sp, sp, #16 pop {r0, r4-r11, pc} endfunc function ff_vp8_h_loop_filter16_inner_armv6, export=1 push {r4-r11, lr} add r12, r0, r1, lsl #3 sub r12, r12, #4 push {r12} ldr r9, [sp, #40] orr r2, r2, r2, lsl #16 b vp8_h_loop_filter_inner_armv6 endfunc function ff_vp8_h_loop_filter8uv_inner_armv6, export=1 sub r1, r1, #4 push {r1, r4-r11, lr} mov r1, r2 orr r2, r3, r3, lsl #16 ldr r3, [sp, #40] ldr r9, [sp, #44] b vp8_h_loop_filter_inner_armv6 endfunc function vp8_h_loop_filter_armv6 mov r5, #4 sub sp, sp, #16 orr r3, r3, r3, lsl #16 orr r9, r9, r9, lsl #16 orr r4, r2, r2, lsl #8 @ flimE orr r2, r3, r3, lsl #8 @ flimI orr r3, r9, r9, lsl #8 @ thresh 1: sub r0, r0, #4 ldr r7, [r0, r1] ldr_post r6, r0, r1, lsl #1 ldr lr, [r0, r1] ldr_post r8, r0, r1, lsl #1 filter_mask_h cmp lr, #0 it eq addeq r0, r0, r1, lsl #1 beq 2f ldr r6, [sp] sub r0, r0, #2 filter_h inner=0 filter_1 sub r0, r0, r1, lsl #1 uxtb16 r6, r10 uxtb16 r7, r8 uxtb16 r10, r10, ror #8 uxtb16 r8, r8, ror #8 orr r6, r6, r7, lsl #8 orr r10, r10, r8, lsl #8 lsr r7, r6, #16 lsr r8, r10, #16 add r0, r0, #1 strh_post r6, r0, r1 strh_post r10, r0, r1 strh_post r7, r0, r1 strh_post r8, r0, r1 filter_2 sub r0, r0, r1, lsl #2 add r0, r0, #3 ldrb r11, [r0, #-5] @ p2 for 1/7th difference strb r10, [r0, #-4] @ op1 strb r8, [r0, #-1] @ oq1 ldrb_post r9, r0, r1 @ q2 for 1/7th difference lsr r10, r10, #8 lsr r8, r8, #8 ldrb r6, [r0, #-5] strb r10, [r0, #-4] strb r8, [r0, #-1] ldrb_post r7, r0, r1 lsr r10, r10, #8 lsr r8, r8, #8 orr r11, r11, r6, lsl #8 orr r9, r9, r7, lsl #8 ldrb r6, [r0, #-5] strb r10, [r0, #-4] strb r8, [r0, #-1] ldrb_post r7, r0, r1 lsr r10, r10, #8 lsr r8, r8, #8 orr r11, r11, r6, lsl #16 orr r9, r9, r7, lsl #16 ldrb r6, [r0, #-5] strb r10, [r0, #-4] strb r8, [r0, #-1] ldrb_post r7, r0, r1 orr r11, r11, r6, lsl #24 orr r9, r9, r7, lsl #24 filter_3 sub r0, r0, r1, lsl #2 strb r10, [r0, #-5] strb_post r8, r0, r1 lsr r10, r10, #8 lsr r8, r8, #8 strb r10, [r0, #-5] strb_post r8, r0, r1 lsr r10, r10, #8 lsr r8, r8, #8 strb r10, [r0, #-5] strb_post r8, r0, r1 lsr r10, r10, #8 lsr r8, r8, #8 strb r10, [r0, #-5] strb_post r8, r0, r1 sub r0, r0, #2 2: cmp r5, #3 it eq ldreq r0, [sp, #16] subs r5, r5, #1 bne 1b add sp, sp, #16 pop {r0, r4-r11, pc} endfunc function ff_vp8_h_loop_filter16_armv6, export=1 push {r4-r11, lr} add r12, r0, r1, lsl #3 push {r12} ldr r9, [sp, #40] orr r2, r2, r2, lsl #16 b vp8_h_loop_filter_armv6 endfunc function ff_vp8_h_loop_filter8uv_armv6, export=1 push {r1, r4-r11, lr} mov r1, r2 orr r2, r3, r3, lsl #16 ldr r3, [sp, #40] ldr r9, [sp, #44] b vp8_h_loop_filter_armv6 endfunc .ltorg @ MC @ void put_vp8_pixels16(uint8_t *dst, int dststride, uint8_t *src, @ int srcstride, int h, int mx, int my) function ff_put_vp8_pixels16_armv6, export=1 push {r4-r11} ldr r12, [sp, #32] @ h 1: subs r12, r12, #2 ldr r5, [r2, #4] ldr r6, [r2, #8] ldr r7, [r2, #12] ldr_post r4, r2, r3 ldr r9, [r2, #4] ldr r10, [r2, #8] ldr r11, [r2, #12] ldr_post r8, r2, r3 strd r6, r7, [r0, #8] strd_post r4, r5, r0, r1 strd r10, r11, [r0, #8] strd_post r8, r9, r0, r1 bgt 1b pop {r4-r11} bx lr endfunc @ void put_vp8_pixels8(uint8_t *dst, int dststride, uint8_t *src, @ int srcstride, int h, int mx, int my) function ff_put_vp8_pixels8_armv6, export=1 push {r4-r11} ldr r12, [sp, #32] @ h 1: subs r12, r12, #4 ldr r5, [r2, #4] ldr_post r4, r2, r3 ldr r7, [r2, #4] ldr_post r6, r2, r3 ldr r9, [r2, #4] ldr_post r8, r2, r3 ldr r11, [r2, #4] ldr_post r10, r2, r3 strd_post r4, r5, r0, r1 strd_post r6, r7, r0, r1 strd_post r8, r9, r0, r1 strd_post r10, r11, r0, r1 bgt 1b pop {r4-r11} bx lr endfunc @ void put_vp8_pixels4(uint8_t *dst, int dststride, uint8_t *src, @ int srcstride, int h, int mx, int my) function ff_put_vp8_pixels4_armv6, export=1 ldr r12, [sp, #0] @ h push {r4-r6,lr} 1: subs r12, r12, #4 ldr_post r4, r2, r3 ldr_post r5, r2, r3 ldr_post r6, r2, r3 ldr_post lr, r2, r3 str_post r4, r0, r1 str_post r5, r0, r1 str_post r6, r0, r1 str_post lr, r0, r1 bgt 1b pop {r4-r6,pc} endfunc @ note: worst case sum of all 6-tap filter values * 255 is 0x7f80 so 16 bit @ arithmatic can be used to apply filters const sixtap_filters_13245600, align=4 .short 2, 108, -11, 36, -8, 1, 0, 0 .short 3, 77, -16, 77, -16, 3, 0, 0 .short 1, 36, -8, 108, -11, 2, 0, 0 endconst const fourtap_filters_1324, align=4 .short -6, 12, 123, -1 .short -9, 50, 93, -6 .short -6, 93, 50, -9 .short -1, 123, 12, -6 endconst .macro vp8_mc_1 name, size, hv function ff_put_vp8_\name\size\()_\hv\()_armv6, export=1 sub r1, r1, #\size mov r12, sp push {r1, r4-r11, lr} ldm r12, {r5-r7} mov r4, #\size stm r12, {r4, r5} orr r12, r6, r7 b vp8_put_\name\()_\hv\()_armv6 + 4 endfunc .endm vp8_mc_1 epel, 16, h6 vp8_mc_1 epel, 16, v6 vp8_mc_1 epel, 8, h6 vp8_mc_1 epel, 8, v6 vp8_mc_1 epel, 8, h4 vp8_mc_1 epel, 8, v4 vp8_mc_1 epel, 4, h6 vp8_mc_1 epel, 4, v6 vp8_mc_1 epel, 4, h4 vp8_mc_1 epel, 4, v4 vp8_mc_1 bilin, 16, h vp8_mc_1 bilin, 16, v vp8_mc_1 bilin, 8, h vp8_mc_1 bilin, 8, v vp8_mc_1 bilin, 4, h vp8_mc_1 bilin, 4, v /* True relational expressions have the value -1 in the GNU assembler, +1 in Apple's. */ #ifdef __APPLE__ # define TMPSIZE \size * (8 + 8*(\size > 4) + \ytaps - 1) #else # define TMPSIZE \size * (8 - 8*(\size > 4) + \ytaps - 1) #endif .macro vp8_mc_hv name, size, h, v, ytaps function ff_put_vp8_\name\size\()_\h\v\()_armv6, export=1 push {r0, r1, r4, lr} add r0, sp, #16 sub sp, sp, #TMPSIZE+16 ldm r0, {r0, r12} mov r4, #\size add lr, r0, #\ytaps-1 .if \ytaps > 2 sub r2, r2, r3, lsl #\ytaps >> 1 & 1 .endif stm sp, {r4, lr} add r0, sp, #16 mov r1, #0 bl vp8_put_\name\()_\h\()_armv6 add r0, sp, #TMPSIZE+16 ldr lr, [sp, #TMPSIZE+16+16] ldm r0, {r0, r1} mov r3, #\size ldr r12, [sp, #TMPSIZE+16+16+8] str lr, [sp, #4] add r2, sp, #16 + \size * (\ytaps / 2 - 1) sub r1, r1, #\size bl vp8_put_\name\()_\v\()_armv6 add sp, sp, #TMPSIZE+16+8 pop {r4, pc} endfunc .endm vp8_mc_hv epel, 16, h6, v6, 6 vp8_mc_hv epel, 8, h6, v6, 6 vp8_mc_hv epel, 8, h4, v6, 6 vp8_mc_hv epel, 8, h6, v4, 4 vp8_mc_hv epel, 8, h4, v4, 4 vp8_mc_hv epel, 4, h6, v6, 6 vp8_mc_hv epel, 4, h4, v6, 6 vp8_mc_hv epel, 4, h6, v4, 4 vp8_mc_hv epel, 4, h4, v4, 4 vp8_mc_hv bilin, 16, h, v, 2 vp8_mc_hv bilin, 8, h, v, 2 vp8_mc_hv bilin, 4, h, v, 2 .macro sat4 r0, r1, r2, r3 asr \r0, \r0, #7 asr \r1, \r1, #7 pkhbt \r0, \r0, \r2, lsl #9 pkhbt \r1, \r1, \r3, lsl #9 usat16 \r0, #8, \r0 usat16 \r1, #8, \r1 orr \r0, \r0, \r1, lsl #8 .endm @ Calling convention for the inner MC functions: @ r0 dst @ r1 dst_stride - block_width @ r2 src @ r3 src_stride @ r4 block_width @ r12 filter_index @ [sp] block_width @ [sp+4] height @ [sp+8] scratch function vp8_put_epel_h6_armv6 push {r1, r4-r11, lr} sub r2, r2, #2 movrel lr, sixtap_filters_13245600 - 16 add lr, lr, r12, lsl #3 sub r3, r3, r4 str r3, [sp, #48] ldm lr, {r1, r3, lr} 1: ldr r7, [r2, #5] @ src[5-8] ldr r6, [r2, #2] @ src[2-5] ldr r5, [r2], #4 @ src[0-3] pkhtb r7, r7, r7, asr #8 @ src[8,7,7,6] uxtb16 r9, r6, ror #8 @ src[5] | src[3] uxtb16 r6, r6 @ src[4] | src[2] uxtb16 r8, r5, ror #8 @ src[3] | src[1] uxtb16 r11, r7, ror #8 @ src[8] | src[7] uxtb16 r7, r7 @ src[7] | src[6] uxtb16 r5, r5 @ src[2] | src[0] mov r10, #0x40 smlad r5, r5, r1, r10 @ filter[0][0] smlad r11, r11, lr, r10 @ filter[3][2] smlad r12, r7, lr, r10 @ filter[2][2] smlad r10, r8, r1, r10 @ filter[1][0] smlad r5, r8, r3, r5 @ filter[0][1] smlad r11, r9, r1, r11 @ filter[3][0] smlad r12, r9, r3, r12 @ filter[2][1] pkhtb r9, r9, r6, asr #16 @ src[5] | src[4] smlad r10, r6, r3, r10 @ filter[1][1] pkhbt r7, r9, r7, lsl #16 @ src[6] | src[4] smlad r5, r9, lr, r5 @ filter[0][2] pkhtb r8, r7, r9, asr #16 @ src[6] | src[5] smlad r11, r7, r3, r11 @ filter[3][1] smlad r9, r8, lr, r10 @ filter[1][2] smlad r7, r6, r1, r12 @ filter[2][0] subs r4, r4, #4 sat4 r5, r9, r7, r11 str r5, [r0], #4 bne 1b add r4, sp, #40 ldm r4, {r4, r5, r12} ldr r6, [sp] subs r5, r5, #1 add r2, r2, r12 str r5, [sp, #44] add r0, r0, r6 bne 1b pop {r1, r4-r11, pc} endfunc function vp8_put_epel_v6_armv6 push {r1, r4-r11, lr} movrel lr, sixtap_filters_13245600 - 16 add lr, lr, r12, lsl #3 str r3, [sp, #48] 1: add r1, r3, r3, lsl #1 @ stride * 3 ldr_nreg r5, r2, r3 @ src[0,1,2,3 + stride * 1] ldr r6, [r2, r3] @ src[0,1,2,3 + stride * 3] ldr r7, [r2, r3, lsl #1] @ src[0,1,2,3 + stride * 4] ldr r8, [r2, r1] @ src[0,1,2,3 + stride * 5] uxtb16 r9, r5, ror #8 @ src[3 + s*1] | src[1 + s*1] uxtb16 r10, r6, ror #8 @ src[3 + s*3] | src[1 + s*3] uxtb16 r11, r7, ror #8 @ src[3 + s*4] | src[1 + s*4] uxtb16 r12, r8, ror #8 @ src[3 + s*5] | src[1 + s*5] uxtb16 r5, r5 @ src[2 + s*1] | src[0 + s*1] uxtb16 r6, r6 @ src[2 + s*3] | src[0 + s*3] uxtb16 r7, r7 @ src[2 + s*4] | src[0 + s*4] uxtb16 r8, r8 @ src[2 + s*5] | src[0 + s*5] pkhbt r1, r9, r10, lsl #16 @ src[1 + s*3] | src[1 + s*1] pkhtb r9, r10, r9, asr #16 @ src[3 + s*3] | src[3 + s*1] pkhbt r10, r11, r12, lsl #16 @ src[1 + s*5] | src[1 + s*4] pkhtb r11, r12, r11, asr #16 @ src[3 + s*5] | src[3 + s*4] pkhbt r12, r5, r6, lsl #16 @ src[0 + s*3] | src[0 + s*1] pkhtb r5, r6, r5, asr #16 @ src[2 + s*3] | src[2 + s*1] pkhbt r6, r7, r8, lsl #16 @ src[0 + s*5] | src[0 + s*4] pkhtb r7, r8, r7, asr #16 @ src[2 + s*5] | src[2 + s*4] ldr r8, [lr, #4] mov r3, #0x40 smlad r12, r12, r8, r3 @ filter[0][1] smlad r1, r1, r8, r3 @ filter[1][1] smlad r5, r5, r8, r3 @ filter[2][1] smlad r9, r9, r8, r3 @ filter[3][1] ldr r8, [lr, #8] ldr r3, [sp, #48] smlad r12, r6, r8, r12 @ filter[0][2] smlad r1, r10, r8, r1 @ filter[1][2] ldr_nreg r6, r2, r3, lsl #1 @ src[0,1,2,3 + stride * 0] ldr r10, [r2], #4 @ src[0,1,2,3 + stride * 2] smlad r5, r7, r8, r5 @ filter[2][2] smlad r9, r11, r8, r9 @ filter[3][2] uxtb16 r7, r6, ror #8 @ src[3 + s*0] | src[1 + s*0] uxtb16 r11, r10, ror #8 @ src[3 + s*2] | src[1 + s*2] uxtb16 r6, r6 @ src[2 + s*0] | src[0 + s*0] uxtb16 r10, r10 @ src[2 + s*2] | src[0 + s*2] pkhbt r8, r7, r11, lsl #16 @ src[1 + s*2] | src[1 + s*0] pkhtb r7, r11, r7, asr #16 @ src[3 + s*2] | src[3 + s*0] pkhbt r11, r6, r10, lsl #16 @ src[0 + s*2] | src[0 + s*0] pkhtb r6, r10, r6, asr #16 @ src[2 + s*2] | src[2 + s*0] ldr r10, [lr] subs r4, r4, #4 smlad r12, r11, r10, r12 @ filter[0][0] smlad r1, r8, r10, r1 @ filter[1][0] smlad r5, r6, r10, r5 @ filter[2][0] smlad r9, r7, r10, r9 @ filter[3][0] sat4 r12, r1, r5, r9 str r12, [r0], #4 bne 1b ldrd r4, r5, [sp, #40] ldr r6, [sp] subs r5, r5, #1 sub r2, r2, r4 str r5, [sp, #44] add r0, r0, r6 add r2, r2, r3 bne 1b pop {r1, r4-r11, pc} endfunc function vp8_put_epel_h4_armv6 push {r1, r4-r11, lr} subs r2, r2, #1 movrel lr, fourtap_filters_1324 - 4 add lr, lr, r12, lsl #2 sub r3, r3, r4 ldm lr, {r5, r6} ldr lr, [sp, #44] 1: ldr r9, [r2, #3] ldr r8, [r2, #2] ldr r7, [r2], #4 uxtb16 r9, r9, ror #8 @ src[6] | src[4] uxtb16 r10, r8, ror #8 @ src[5] | src[3] uxtb16 r8, r8 @ src[4] | src[2] uxtb16 r11, r7, ror #8 @ src[3] | src[1] uxtb16 r7, r7 @ src[2] | src[0] mov r12, #0x40 smlad r9, r9, r6, r12 @ filter[3][1] smlad r7, r7, r5, r12 @ filter[0][0] smlad r9, r10, r5, r9 @ filter[3][0] smlad r10, r10, r6, r12 @ filter[2][1] smlad r12, r11, r5, r12 @ filter[1][0] smlad r7, r11, r6, r7 @ filter[0][1] smlad r10, r8, r5, r10 @ filter[2][0] smlad r12, r8, r6, r12 @ filter[1][1] subs r4, r4, #4 sat4 r7, r12, r10, r9 str r7, [r0], #4 bne 1b subs lr, lr, #1 ldr r4, [sp, #40] add r2, r2, r3 add r0, r0, r1 bne 1b pop {r1, r4-r11, pc} endfunc function vp8_put_epel_v4_armv6 push {r1, r4-r11, lr} movrel lr, fourtap_filters_1324 - 4 add lr, lr, r12, lsl #2 ldm lr, {r5, r6} str r3, [sp, #48] 1: ldr lr, [r2, r3, lsl #1] ldr r12, [r2, r3] ldr_nreg r7, r2, r3 ldr r11, [r2], #4 uxtb16 r8, lr, ror #8 @ src[3 + s*3] | src[1 + s*3] uxtb16 r9, r12, ror #8 @ src[3 + s*2] | src[1 + s*2] uxtb16 r3, r7, ror #8 @ src[3 + s*0] | src[1 + s*0] uxtb16 r1, r11, ror #8 @ src[3 + s*1] | src[1 + s*1] uxtb16 lr, lr @ src[2 + s*3] | src[0 + s*3] uxtb16 r12, r12 @ src[2 + s*2] | src[0 + s*2] uxtb16 r7, r7 @ src[2 + s*0] | src[0 + s*0] uxtb16 r11, r11 @ src[2 + s*1] | src[0 + s*1] pkhbt r10, r1, r8, lsl #16 @ src[1 + s*3] | src[1 + s*1] pkhtb r1, r8, r1, asr #16 @ src[3 + s*3] | src[3 + s*1] pkhbt r8, r3, r9, lsl #16 @ src[1 + s*2] | src[1 + s*0] pkhtb r3, r9, r3, asr #16 @ src[3 + s*2] | src[3 + s*0] pkhbt r9, r11, lr, lsl #16 @ src[0 + s*3] | src[0 + s*1] pkhtb r11, lr, r11, asr #16 @ src[2 + s*3] | src[2 + s*1] pkhbt lr, r7, r12, lsl #16 @ src[0 + s*2] | src[0 + s*0] pkhtb r7, r12, r7, asr #16 @ src[2 + s*2] | src[2 + s*0] mov r12, #0x40 smlad r9, r9, r6, r12 @ filter[0][1] smlad r10, r10, r6, r12 @ filter[1][1] smlad r11, r11, r6, r12 @ filter[2][1] smlad r1, r1, r6, r12 @ filter[3][1] smlad r9, lr, r5, r9 @ filter[0][0] smlad r10, r8, r5, r10 @ filter[1][0] smlad r11, r7, r5, r11 @ filter[2][0] smlad r1, r3, r5, r1 @ filter[3][0] subs r4, r4, #4 ldr r3, [sp, #48] sat4 r9, r10, r11, r1 str r9, [r0], #4 bne 1b ldr r4, [sp, #40] ldr r12, [sp, #44] add r2, r2, r3 ldr r9, [sp, #0] subs r12, r12, #1 sub r2, r2, r4 str r12, [sp, #44] add r0, r0, r9 bne 1b pop {r1, r4-r11, pc} endfunc function vp8_put_bilin_h_armv6 push {r1, r4-r11, lr} rsb r5, r12, r12, lsl #16 ldr r12, [sp, #44] sub r3, r3, r4 add r5, r5, #8 1: ldrb r6, [r2], #1 ldrb r7, [r2], #1 ldrb r8, [r2], #1 ldrb r9, [r2], #1 ldrb lr, [r2] pkhbt r6, r6, r7, lsl #16 @ src[1] | src[0] pkhbt r7, r7, r8, lsl #16 @ src[2] | src[1] pkhbt r8, r8, r9, lsl #16 @ src[3] | src[2] pkhbt r9, r9, lr, lsl #16 @ src[4] | src[3] mov r10, #4 smlad r6, r6, r5, r10 smlad r7, r7, r5, r10 smlad r8, r8, r5, r10 smlad r9, r9, r5, r10 subs r4, r4, #4 asr r6, #3 asr r7, #3 pkhbt r6, r6, r8, lsl #13 pkhbt r7, r7, r9, lsl #13 orr r6, r6, r7, lsl #8 str r6, [r0], #4 bne 1b ldr r4, [sp, #40] subs r12, r12, #1 add r2, r2, r3 add r0, r0, r1 bne 1b pop {r1, r4-r11, pc} endfunc function vp8_put_bilin_v_armv6 push {r1, r4-r11, lr} rsb r5, r12, r12, lsl #16 ldr r12, [sp, #44] add r5, r5, #8 1: ldrb r10, [r2, r3] ldrb r6, [r2], #1 ldrb r11, [r2, r3] ldrb r7, [r2], #1 ldrb lr, [r2, r3] ldrb r8, [r2], #1 ldrb r9, [r2, r3] pkhbt r6, r6, r10, lsl #16 ldrb r10, [r2], #1 pkhbt r7, r7, r11, lsl #16 pkhbt r8, r8, lr, lsl #16 pkhbt r9, r10, r9, lsl #16 mov r10, #4 smlad r6, r6, r5, r10 smlad r7, r7, r5, r10 smlad r8, r8, r5, r10 smlad r9, r9, r5, r10 subs r4, r4, #4 asr r6, #3 asr r7, #3 pkhbt r6, r6, r8, lsl #13 pkhbt r7, r7, r9, lsl #13 orr r6, r6, r7, lsl #8 str r6, [r0], #4 bne 1b ldr r4, [sp, #40] subs r12, r12, #1 add r2, r2, r3 add r0, r0, r1 sub r2, r2, r4 bne 1b pop {r1, r4-r11, pc} endfunc