📄 dsputil_arm_s.s
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@
@ ARMv4L optimized DSP utils
@ Copyright (c) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
@
@ This file is part of FFmpeg.
@
@ FFmpeg 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.
@
@ FFmpeg 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 FFmpeg; if not, write to the Free Software
@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
@
.macro ADJ_ALIGN_QUADWORD_D shift, Rd0, Rd1, Rd2, Rd3, Rn0, Rn1, Rn2, Rn3, Rn4
mov \Rd0, \Rn0, lsr #(\shift * 8)
mov \Rd1, \Rn1, lsr #(\shift * 8)
mov \Rd2, \Rn2, lsr #(\shift * 8)
mov \Rd3, \Rn3, lsr #(\shift * 8)
orr \Rd0, \Rd0, \Rn1, lsl #(32 - \shift * 8)
orr \Rd1, \Rd1, \Rn2, lsl #(32 - \shift * 8)
orr \Rd2, \Rd2, \Rn3, lsl #(32 - \shift * 8)
orr \Rd3, \Rd3, \Rn4, lsl #(32 - \shift * 8)
.endm
.macro ADJ_ALIGN_DOUBLEWORD shift, R0, R1, R2
mov \R0, \R0, lsr #(\shift * 8)
orr \R0, \R0, \R1, lsl #(32 - \shift * 8)
mov \R1, \R1, lsr #(\shift * 8)
orr \R1, \R1, \R2, lsl #(32 - \shift * 8)
.endm
.macro ADJ_ALIGN_DOUBLEWORD_D shift, Rdst0, Rdst1, Rsrc0, Rsrc1, Rsrc2
mov \Rdst0, \Rsrc0, lsr #(\shift * 8)
mov \Rdst1, \Rsrc1, lsr #(\shift * 8)
orr \Rdst0, \Rdst0, \Rsrc1, lsl #(32 - (\shift * 8))
orr \Rdst1, \Rdst1, \Rsrc2, lsl #(32 - (\shift * 8))
.endm
.macro RND_AVG32 Rd0, Rd1, Rn0, Rn1, Rm0, Rm1, Rmask
@ Rd = (Rn | Rm) - (((Rn ^ Rm) & ~0x01010101) >> 1)
@ Rmask = 0xFEFEFEFE
@ Rn = destroy
eor \Rd0, \Rn0, \Rm0
eor \Rd1, \Rn1, \Rm1
orr \Rn0, \Rn0, \Rm0
orr \Rn1, \Rn1, \Rm1
and \Rd0, \Rd0, \Rmask
and \Rd1, \Rd1, \Rmask
sub \Rd0, \Rn0, \Rd0, lsr #1
sub \Rd1, \Rn1, \Rd1, lsr #1
.endm
.macro NO_RND_AVG32 Rd0, Rd1, Rn0, Rn1, Rm0, Rm1, Rmask
@ Rd = (Rn & Rm) - (((Rn ^ Rm) & ~0x01010101) >> 1)
@ Rmask = 0xFEFEFEFE
@ Rn = destroy
eor \Rd0, \Rn0, \Rm0
eor \Rd1, \Rn1, \Rm1
and \Rn0, \Rn0, \Rm0
and \Rn1, \Rn1, \Rm1
and \Rd0, \Rd0, \Rmask
and \Rd1, \Rd1, \Rmask
add \Rd0, \Rn0, \Rd0, lsr #1
add \Rd1, \Rn1, \Rd1, lsr #1
.endm
@ ----------------------------------------------------------------
.align 8
.global put_pixels16_arm
put_pixels16_arm:
@ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
@ block = word aligned, pixles = unaligned
pld [r1]
stmfd sp!, {r4-r11, lr} @ R14 is also called LR
adr r5, 5f
ands r4, r1, #3
bic r1, r1, #3
add r5, r5, r4, lsl #2
ldrne pc, [r5]
1:
ldmia r1, {r4-r7}
add r1, r1, r2
stmia r0, {r4-r7}
pld [r1]
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11, pc}
.align 8
2:
ldmia r1, {r4-r8}
add r1, r1, r2
ADJ_ALIGN_QUADWORD_D 1, r9, r10, r11, r12, r4, r5, r6, r7, r8
pld [r1]
subs r3, r3, #1
stmia r0, {r9-r12}
add r0, r0, r2
bne 2b
ldmfd sp!, {r4-r11, pc}
.align 8
3:
ldmia r1, {r4-r8}
add r1, r1, r2
ADJ_ALIGN_QUADWORD_D 2, r9, r10, r11, r12, r4, r5, r6, r7, r8
pld [r1]
subs r3, r3, #1
stmia r0, {r9-r12}
add r0, r0, r2
bne 3b
ldmfd sp!, {r4-r11, pc}
.align 8
4:
ldmia r1, {r4-r8}
add r1, r1, r2
ADJ_ALIGN_QUADWORD_D 3, r9, r10, r11, r12, r4, r5, r6, r7, r8
pld [r1]
subs r3, r3, #1
stmia r0, {r9-r12}
add r0, r0, r2
bne 4b
ldmfd sp!, {r4-r11,pc}
.align 8
5:
.word 1b
.word 2b
.word 3b
.word 4b
@ ----------------------------------------------------------------
.align 8
.global put_pixels8_arm
put_pixels8_arm:
@ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
@ block = word aligned, pixles = unaligned
pld [r1]
stmfd sp!, {r4-r5,lr} @ R14 is also called LR
adr r5, 5f
ands r4, r1, #3
bic r1, r1, #3
add r5, r5, r4, lsl #2
ldrne pc, [r5]
1:
ldmia r1, {r4-r5}
add r1, r1, r2
subs r3, r3, #1
pld [r1]
stmia r0, {r4-r5}
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r5,pc}
.align 8
2:
ldmia r1, {r4-r5, r12}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD 1, r4, r5, r12
pld [r1]
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 2b
ldmfd sp!, {r4-r5,pc}
.align 8
3:
ldmia r1, {r4-r5, r12}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD 2, r4, r5, r12
pld [r1]
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 3b
ldmfd sp!, {r4-r5,pc}
.align 8
4:
ldmia r1, {r4-r5, r12}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD 3, r4, r5, r12
pld [r1]
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 4b
ldmfd sp!, {r4-r5,pc}
.align 8
5:
.word 1b
.word 2b
.word 3b
.word 4b
@ ----------------------------------------------------------------
.align 8
.global put_pixels8_x2_arm
put_pixels8_x2_arm:
@ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
@ block = word aligned, pixles = unaligned
pld [r1]
stmfd sp!, {r4-r10,lr} @ R14 is also called LR
adr r5, 5f
ands r4, r1, #3
ldr r12, [r5]
add r5, r5, r4, lsl #2
bic r1, r1, #3
ldrne pc, [r5]
1:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10
pld [r1]
RND_AVG32 r8, r9, r4, r5, r6, r7, r12
subs r3, r3, #1
stmia r0, {r8-r9}
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r10,pc}
.align 8
2:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10
ADJ_ALIGN_DOUBLEWORD_D 2, r8, r9, r4, r5, r10
pld [r1]
RND_AVG32 r4, r5, r6, r7, r8, r9, r12
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 2b
ldmfd sp!, {r4-r10,pc}
.align 8
3:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r4, r5, r10
ADJ_ALIGN_DOUBLEWORD_D 3, r8, r9, r4, r5, r10
pld [r1]
RND_AVG32 r4, r5, r6, r7, r8, r9, r12
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 3b
ldmfd sp!, {r4-r10,pc}
.align 8
4:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r4, r5, r10
pld [r1]
RND_AVG32 r8, r9, r6, r7, r5, r10, r12
subs r3, r3, #1
stmia r0, {r8-r9}
add r0, r0, r2
bne 4b
ldmfd sp!, {r4-r10,pc} @@ update PC with LR content.
.align 8
5:
.word 0xFEFEFEFE
.word 2b
.word 3b
.word 4b
.align 8
.global put_no_rnd_pixels8_x2_arm
put_no_rnd_pixels8_x2_arm:
@ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
@ block = word aligned, pixles = unaligned
pld [r1]
stmfd sp!, {r4-r10,lr} @ R14 is also called LR
adr r5, 5f
ands r4, r1, #3
ldr r12, [r5]
add r5, r5, r4, lsl #2
bic r1, r1, #3
ldrne pc, [r5]
1:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10
pld [r1]
NO_RND_AVG32 r8, r9, r4, r5, r6, r7, r12
subs r3, r3, #1
stmia r0, {r8-r9}
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r10,pc}
.align 8
2:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 1, r6, r7, r4, r5, r10
ADJ_ALIGN_DOUBLEWORD_D 2, r8, r9, r4, r5, r10
pld [r1]
NO_RND_AVG32 r4, r5, r6, r7, r8, r9, r12
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 2b
ldmfd sp!, {r4-r10,pc}
.align 8
3:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 2, r6, r7, r4, r5, r10
ADJ_ALIGN_DOUBLEWORD_D 3, r8, r9, r4, r5, r10
pld [r1]
NO_RND_AVG32 r4, r5, r6, r7, r8, r9, r12
subs r3, r3, #1
stmia r0, {r4-r5}
add r0, r0, r2
bne 3b
ldmfd sp!, {r4-r10,pc}
.align 8
4:
ldmia r1, {r4-r5, r10}
add r1, r1, r2
ADJ_ALIGN_DOUBLEWORD_D 3, r6, r7, r4, r5, r10
pld [r1]
NO_RND_AVG32 r8, r9, r6, r7, r5, r10, r12
subs r3, r3, #1
stmia r0, {r8-r9}
add r0, r0, r2
bne 4b
ldmfd sp!, {r4-r10,pc} @@ update PC with LR content.
.align 8
5:
.word 0xFEFEFEFE
.word 2b
.word 3b
.word 4b
@ ----------------------------------------------------------------
.align 8
.global put_pixels8_y2_arm
put_pixels8_y2_arm:
@ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
@ block = word aligned, pixles = unaligned
pld [r1]
stmfd sp!, {r4-r11,lr} @ R14 is also called LR
adr r5, 5f
ands r4, r1, #3
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