Commit 4cde2ab7 authored by Johann's avatar Johann Committed by Code Review
Browse files

Merge "ARMv6 optimized fdct4x4"

parents edfc93ae a61785b6
......@@ -59,9 +59,9 @@ void vp8_arch_arm_encoder_init(VP8_COMP *cpi)
cpi->rtcd.variance.get4x4sse_cs = vp8_get4x4sse_cs_c;*/
/*cpi->rtcd.fdct.short4x4 = vp8_short_fdct4x4_c;
cpi->rtcd.fdct.short8x4 = vp8_short_fdct8x4_c;
cpi->rtcd.fdct.fast4x4 = vp8_fast_fdct4x4_c;
cpi->rtcd.fdct.fast8x4 = vp8_fast_fdct8x4_c;*/
cpi->rtcd.fdct.short8x4 = vp8_short_fdct8x4_c;*/
cpi->rtcd.fdct.fast4x4 = vp8_fast_fdct4x4_armv6;
cpi->rtcd.fdct.fast8x4 = vp8_fast_fdct8x4_armv6;
cpi->rtcd.fdct.walsh_short4x4 = vp8_short_walsh4x4_armv6;
/*cpi->rtcd.encodemb.berr = vp8_block_error_c;
......
;
; Copyright (c) 2011 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
EXPORT |vp8_fast_fdct4x4_armv6|
ARM
REQUIRE8
PRESERVE8
AREA |.text|, CODE, READONLY
; void vp8_short_fdct4x4_c(short *input, short *output, int pitch)
|vp8_fast_fdct4x4_armv6| PROC
stmfd sp!, {r4 - r12, lr}
; PART 1
; coeffs 0-3
ldrd r4, r5, [r0] ; [i1 | i0] [i3 | i2]
ldr r10, c7500
ldr r11, c14500
ldr r12, c0x22a453a0 ; [2217*4 | 5352*4]
ldr lr, c0x00080008
ror r5, r5, #16 ; [i2 | i3]
qadd16 r6, r4, r5 ; [i1+i2 | i0+i3] = [b1 | a1] without shift
qsub16 r7, r4, r5 ; [i1-i2 | i0-i3] = [c1 | d1] without shift
add r0, r0, r2 ; update input pointer
qadd16 r7, r7, r7 ; 2*[c1|d1] --> we can use smlad and smlsd
; with 2217*4 and 5352*4 without losing the
; sign bit (overflow)
smuad r4, r6, lr ; o0 = (i1+i2)*8 + (i0+i3)*8
smusd r5, r6, lr ; o2 = (i1+i2)*8 - (i0+i3)*8
smlad r6, r7, r12, r11 ; o1 = (c1 * 2217 + d1 * 5352 + 14500)
smlsdx r7, r7, r12, r10 ; o3 = (d1 * 2217 - c1 * 5352 + 7500)
ldrd r8, r9, [r0] ; [i5 | i4] [i7 | i6]
pkhbt r3, r4, r6, lsl #4 ; [o1 | o0], keep in register for PART 2
pkhbt r6, r5, r7, lsl #4 ; [o3 | o2]
str r6, [r1, #4]
; coeffs 4-7
ror r9, r9, #16 ; [i6 | i7]
qadd16 r6, r8, r9 ; [i5+i6 | i4+i7] = [b1 | a1] without shift
qsub16 r7, r8, r9 ; [i5-i6 | i4-i7] = [c1 | d1] without shift
add r0, r0, r2 ; update input pointer
qadd16 r7, r7, r7 ; 2x[c1|d1] --> we can use smlad and smlsd
; with 2217*4 and 5352*4 without losing the
; sign bit (overflow)
smuad r9, r6, lr ; o4 = (i5+i6)*8 + (i4+i7)*8
smusd r8, r6, lr ; o6 = (i5+i6)*8 - (i4+i7)*8
smlad r6, r7, r12, r11 ; o5 = (c1 * 2217 + d1 * 5352 + 14500)
smlsdx r7, r7, r12, r10 ; o7 = (d1 * 2217 - c1 * 5352 + 7500)
ldrd r4, r5, [r0] ; [i9 | i8] [i11 | i10]
pkhbt r9, r9, r6, lsl #4 ; [o5 | o4], keep in register for PART 2
pkhbt r6, r8, r7, lsl #4 ; [o7 | o6]
str r6, [r1, #12]
; coeffs 8-11
ror r5, r5, #16 ; [i10 | i11]
qadd16 r6, r4, r5 ; [i9+i10 | i8+i11]=[b1 | a1] without shift
qsub16 r7, r4, r5 ; [i9-i10 | i8-i11]=[c1 | d1] without shift
add r0, r0, r2 ; update input pointer
qadd16 r7, r7, r7 ; 2x[c1|d1] --> we can use smlad and smlsd
; with 2217*4 and 5352*4 without losing the
; sign bit (overflow)
smuad r2, r6, lr ; o8 = (i9+i10)*8 + (i8+i11)*8
smusd r8, r6, lr ; o10 = (i9+i10)*8 - (i8+i11)*8
smlad r6, r7, r12, r11 ; o9 = (c1 * 2217 + d1 * 5352 + 14500)
smlsdx r7, r7, r12, r10 ; o11 = (d1 * 2217 - c1 * 5352 + 7500)
ldrd r4, r5, [r0] ; [i13 | i12] [i15 | i14]
pkhbt r2, r2, r6, lsl #4 ; [o9 | o8], keep in register for PART 2
pkhbt r6, r8, r7, lsl #4 ; [o11 | o10]
str r6, [r1, #20]
; coeffs 12-15
ror r5, r5, #16 ; [i14 | i15]
qadd16 r6, r4, r5 ; [i13+i14 | i12+i15]=[b1|a1] without shift
qsub16 r7, r4, r5 ; [i13-i14 | i12-i15]=[c1|d1] without shift
qadd16 r7, r7, r7 ; 2x[c1|d1] --> we can use smlad and smlsd
; with 2217*4 and 5352*4 without losing the
; sign bit (overflow)
smuad r4, r6, lr ; o12 = (i13+i14)*8 + (i12+i15)*8
smusd r5, r6, lr ; o14 = (i13+i14)*8 - (i12+i15)*8
smlad r6, r7, r12, r11 ; o13 = (c1 * 2217 + d1 * 5352 + 14500)
smlsdx r7, r7, r12, r10 ; o15 = (d1 * 2217 - c1 * 5352 + 7500)
pkhbt r0, r4, r6, lsl #4 ; [o13 | o12], keep in register for PART 2
pkhbt r6, r5, r7, lsl #4 ; [o15 | o14]
str r6, [r1, #28]
; PART 2 -------------------------------------------------
ldr r11, c12000
ldr r10, c51000
ldr lr, c0x00070007
qadd16 r4, r3, r0 ; a1 = [i1+i13 | i0+i12]
qadd16 r5, r9, r2 ; b1 = [i5+i9 | i4+i8]
qsub16 r6, r9, r2 ; c1 = [i5-i9 | i4-i8]
qsub16 r7, r3, r0 ; d1 = [i1-i13 | i0-i12]
qadd16 r4, r4, lr ; a1 + 7
add r0, r11, #0x10000 ; add (d!=0)
qadd16 r2, r4, r5 ; a1 + b1 + 7
qsub16 r3, r4, r5 ; a1 - b1 + 7
ldr r12, c0x08a914e8 ; [2217 | 5352]
lsl r8, r2, #16 ; prepare bottom halfword for scaling
asr r2, r2, #4 ; scale top halfword
lsl r9, r3, #16 ; prepare bottom halfword for scaling
asr r3, r3, #4 ; scale top halfword
pkhtb r4, r2, r8, asr #20 ; pack and scale bottom halfword
pkhtb r5, r3, r9, asr #20 ; pack and scale bottom halfword
smulbt r2, r6, r12 ; [ ------ | c1*2217]
str r4, [r1, #0] ; [ o1 | o0]
smultt r3, r6, r12 ; [c1*2217 | ------ ]
str r5, [r1, #16] ; [ o9 | o8]
smlabb r8, r7, r12, r2 ; [ ------ | d1*5352]
smlatb r9, r7, r12, r3 ; [d1*5352 | ------ ]
smulbb r2, r6, r12 ; [ ------ | c1*5352]
smultb r3, r6, r12 ; [c1*5352 | ------ ]
lsls r6, r7, #16 ; d1 != 0 ?
addeq r8, r8, r11 ; c1_b*2217+d1_b*5352+12000 + (d==0)
addne r8, r8, r0 ; c1_b*2217+d1_b*5352+12000 + (d!=0)
asrs r6, r7, #16
addeq r9, r9, r11 ; c1_t*2217+d1_t*5352+12000 + (d==0)
addne r9, r9, r0 ; c1_t*2217+d1_t*5352+12000 + (d!=0)
smlabt r4, r7, r12, r10 ; [ ------ | d1*2217] + 51000
smlatt r5, r7, r12, r10 ; [d1*2217 | ------ ] + 51000
pkhtb r9, r9, r8, asr #16
sub r4, r4, r2
sub r5, r5, r3
ldr r3, [r1, #4] ; [i3 | i2]
pkhtb r5, r5, r4, asr #16 ; [o13|o12]
str r9, [r1, #8] ; [o5 | 04]
ldr r9, [r1, #12] ; [i7 | i6]
ldr r8, [r1, #28] ; [i15|i14]
ldr r2, [r1, #20] ; [i11|i10]
str r5, [r1, #24] ; [o13|o12]
qadd16 r4, r3, r8 ; a1 = [i3+i15 | i2+i14]
qadd16 r5, r9, r2 ; b1 = [i7+i11 | i6+i10]
qadd16 r4, r4, lr ; a1 + 7
qsub16 r6, r9, r2 ; c1 = [i7-i11 | i6-i10]
qadd16 r2, r4, r5 ; a1 + b1 + 7
qsub16 r7, r3, r8 ; d1 = [i3-i15 | i2-i14]
qsub16 r3, r4, r5 ; a1 - b1 + 7
lsl r8, r2, #16 ; prepare bottom halfword for scaling
asr r2, r2, #4 ; scale top halfword
lsl r9, r3, #16 ; prepare bottom halfword for scaling
asr r3, r3, #4 ; scale top halfword
pkhtb r4, r2, r8, asr #20 ; pack and scale bottom halfword
pkhtb r5, r3, r9, asr #20 ; pack and scale bottom halfword
smulbt r2, r6, r12 ; [ ------ | c1*2217]
str r4, [r1, #4] ; [ o3 | o2]
smultt r3, r6, r12 ; [c1*2217 | ------ ]
str r5, [r1, #20] ; [ o11 | o10]
smlabb r8, r7, r12, r2 ; [ ------ | d1*5352]
smlatb r9, r7, r12, r3 ; [d1*5352 | ------ ]
smulbb r2, r6, r12 ; [ ------ | c1*5352]
smultb r3, r6, r12 ; [c1*5352 | ------ ]
lsls r6, r7, #16 ; d1 != 0 ?
addeq r8, r8, r11 ; c1_b*2217+d1_b*5352+12000 + (d==0)
addne r8, r8, r0 ; c1_b*2217+d1_b*5352+12000 + (d!=0)
asrs r6, r7, #16
addeq r9, r9, r11 ; c1_t*2217+d1_t*5352+12000 + (d==0)
addne r9, r9, r0 ; c1_t*2217+d1_t*5352+12000 + (d!=0)
smlabt r4, r7, r12, r10 ; [ ------ | d1*2217] + 51000
smlatt r5, r7, r12, r10 ; [d1*2217 | ------ ] + 51000
pkhtb r9, r9, r8, asr #16
sub r4, r4, r2
sub r5, r5, r3
str r9, [r1, #12] ; [o7 | o6]
pkhtb r5, r5, r4, asr #16 ; [o15|o14]
str r5, [r1, #28] ; [o15|o14]
ldmfd sp!, {r4 - r12, pc}
ENDP
; Used constants
c7500
DCD 7500
c14500
DCD 14500
c0x22a453a0
DCD 0x22a453a0
c0x00080008
DCD 0x00080008
c12000
DCD 12000
c51000
DCD 51000
c0x00070007
DCD 0x00070007
c0x08a914e8
DCD 0x08a914e8
END
/*
* Copyright (c) 2011 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vpx_config.h"
#include "vp8/encoder/dct.h"
#if HAVE_ARMV6
void vp8_fast_fdct8x4_armv6(short *input, short *output, int pitch)
{
vp8_fast_fdct4x4_armv6(input, output, pitch);
vp8_fast_fdct4x4_armv6(input + 4, output + 16, pitch);
}
#endif /* HAVE_ARMV6 */
......@@ -14,12 +14,21 @@
#if HAVE_ARMV6
extern prototype_fdct(vp8_short_walsh4x4_armv6);
extern prototype_fdct(vp8_fast_fdct4x4_armv6);
extern prototype_fdct(vp8_fast_fdct8x4_armv6);
#if !CONFIG_RUNTIME_CPU_DETECT
#undef vp8_fdct_walsh_short4x4
#define vp8_fdct_walsh_short4x4 vp8_short_walsh4x4_armv6
#undef vp8_fdct_fast4x4
#define vp8_fdct_fast4x4 vp8_fast_fdct4x4_armv6
#undef vp8_fdct_fast8x4
#define vp8_fdct_fast8x4 vp8_fast_fdct8x4_armv6
#endif
#endif
#endif /* HAVE_ARMV6 */
#if HAVE_ARMV7
extern prototype_fdct(vp8_short_fdct4x4_neon);
......
......@@ -19,6 +19,7 @@ VP8_CX_SRCS-$(ARCH_ARM) += encoder/asm_enc_offsets.c
VP8_CX_SRCS-$(HAVE_ARMV7) += encoder/arm/encodemb_arm.c
VP8_CX_SRCS-$(HAVE_ARMV7) += encoder/arm/quantize_arm.c
VP8_CX_SRCS-$(HAVE_ARMV7) += encoder/arm/picklpf_arm.c
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/dct_arm.c
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/variance_arm.c
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/variance_arm.h
VP8_CX_SRCS-$(HAVE_ARMV5TE) += encoder/arm/boolhuff_arm.c
......@@ -34,6 +35,7 @@ VP8_CX_SRCS-$(HAVE_ARMV5TE) += encoder/arm/armv5te/vp8_packtokens_partitions_ar
#File list for armv6
# encoder
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/armv6/vp8_fast_fdct4x4_armv6$(ASM)
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/armv6/vp8_fast_quantize_b_armv6$(ASM)
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/armv6/vp8_sad16x16_armv6$(ASM)
VP8_CX_SRCS-$(HAVE_ARMV6) += encoder/arm/armv6/vp8_variance16x16_armv6$(ASM)
......
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