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rockbox/apps/plugins/mpegplayer/motion_comp_arm_s.S

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ArmAsm
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optimized motion compensation for ARM from the mplayer-w100 project. Elefants Dream plays back 2.3fps faster on the Gigabeat git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13032 a1c6a512-1295-4272-9138-f99709370657
2007-04-05 09:56:28 +00:00
@ motion_comp_arm_s.S
@ Copyright (C) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
@
@ This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
@ See http://libmpeg2.sourceforge.net/ for updates.
@
@ mpeg2dec is free software; you can redistribute it and/or modify
@ it under the terms of the GNU General Public License as published by
@ the Free Software Foundation; either version 2 of the License, or
@ (at your option) any later version.
@
@ mpeg2dec 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 General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program; if not, write to the Free Software
@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
.text
@ ----------------------------------------------------------------
.align
.global MC_put_o_16_arm
MC_put_o_16_arm:
@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
@@ pld [r1]
stmfd sp!, {r4-r11, lr} @ R14 is also called LR
and r4, r1, #3
adr r5, MC_put_o_16_arm_align_jt
add r5, r5, r4, lsl #2
ldr pc, [r5]
MC_put_o_16_arm_align0:
ldmia r1, {r4-r7}
add r1, r1, r2
@@ pld [r1]
stmia r0, {r4-r7}
subs r3, r3, #1
add r0, r0, r2
bne MC_put_o_16_arm_align0
ldmfd sp!, {r4-r11, pc} @@ update PC with LR content.
.macro PROC shift
ldmia r1, {r4-r8}
add r1, r1, r2
mov r9, r4, lsr #(\shift)
@@ pld [r1]
mov r10, r5, lsr #(\shift)
orr r9, r9, r5, lsl #(32-\shift)
mov r11, r6, lsr #(\shift)
orr r10, r10, r6, lsl #(32-\shift)
mov r12, r7, lsr #(\shift)
orr r11, r11, r7, lsl #(32-\shift)
orr r12, r12, r8, lsl #(32-\shift)
stmia r0, {r9-r12}
subs r3, r3, #1
add r0, r0, r2
.endm
MC_put_o_16_arm_align1:
and r1, r1, #0xFFFFFFFC
1: PROC(8)
bne 1b
ldmfd sp!, {r4-r11, pc} @@ update PC with LR content.
MC_put_o_16_arm_align2:
and r1, r1, #0xFFFFFFFC
1: PROC(16)
bne 1b
ldmfd sp!, {r4-r11, pc} @@ update PC with LR content.
MC_put_o_16_arm_align3:
and r1, r1, #0xFFFFFFFC
1: PROC(24)
bne 1b
ldmfd sp!, {r4-r11, pc} @@ update PC with LR content.
MC_put_o_16_arm_align_jt:
.word MC_put_o_16_arm_align0
.word MC_put_o_16_arm_align1
.word MC_put_o_16_arm_align2
.word MC_put_o_16_arm_align3
@ ----------------------------------------------------------------
.align
.global MC_put_o_8_arm
MC_put_o_8_arm:
@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
@@ pld [r1]
stmfd sp!, {r4-r10, lr} @ R14 is also called LR
and r4, r1, #3
adr r5, MC_put_o_8_arm_align_jt
add r5, r5, r4, lsl #2
ldr pc, [r5]
MC_put_o_8_arm_align0:
ldmia r1, {r4-r5}
add r1, r1, r2
@@ pld [r1]
stmia r0, {r4-r5}
add r0, r0, r2
subs r3, r3, #1
bne MC_put_o_8_arm_align0
ldmfd sp!, {r4-r10, pc} @@ update PC with LR content.
.macro PROC8 shift
ldmia r1, {r4-r6}
add r1, r1, r2
mov r9, r4, lsr #(\shift)
@@ pld [r1]
mov r10, r5, lsr #(\shift)
orr r9, r9, r5, lsl #(32-\shift)
orr r10, r10, r6, lsl #(32-\shift)
stmia r0, {r9-r10}
subs r3, r3, #1
add r0, r0, r2
.endm
MC_put_o_8_arm_align1:
and r1, r1, #0xFFFFFFFC
1: PROC8(8)
bne 1b
ldmfd sp!, {r4-r10, pc} @@ update PC with LR content.
MC_put_o_8_arm_align2:
and r1, r1, #0xFFFFFFFC
1: PROC8(16)
bne 1b
ldmfd sp!, {r4-r10, pc} @@ update PC with LR content.
MC_put_o_8_arm_align3:
and r1, r1, #0xFFFFFFFC
1: PROC8(24)
bne 1b
ldmfd sp!, {r4-r10, pc} @@ update PC with LR content.
MC_put_o_8_arm_align_jt:
.word MC_put_o_8_arm_align0
.word MC_put_o_8_arm_align1
.word MC_put_o_8_arm_align2
.word MC_put_o_8_arm_align3
@ ----------------------------------------------------------------
.macro AVG_PW rW1, rW2
mov \rW2, \rW2, lsl #24
orr \rW2, \rW2, \rW1, lsr #8
eor r9, \rW1, \rW2
and \rW2, \rW1, \rW2
and r10, r9, r12
add \rW2, \rW2, r10, lsr #1
and r10, r9, r11
add \rW2, \rW2, r10
.endm
.align
.global MC_put_x_16_arm
MC_put_x_16_arm:
@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
@@ pld [r1]
stmfd sp!, {r4-r11,lr} @ R14 is also called LR
and r4, r1, #3
adr r5, MC_put_x_16_arm_align_jt
ldr r11, [r5]
mvn r12, r11
add r5, r5, r4, lsl #2
ldr pc, [r5, #4]
.macro ADJ_ALIGN_QW shift, R0, R1, R2, R3, R4
mov \R0, \R0, lsr #(\shift)
orr \R0, \R0, \R1, lsl #(32 - \shift)
mov \R1, \R1, lsr #(\shift)
orr \R1, \R1, \R2, lsl #(32 - \shift)
mov \R2, \R2, lsr #(\shift)
orr \R2, \R2, \R3, lsl #(32 - \shift)
mov \R3, \R3, lsr #(\shift)
orr \R3, \R3, \R4, lsl #(32 - \shift)
mov \R4, \R4, lsr #(\shift)
@ and \R4, \R4, #0xFF
.endm
MC_put_x_16_arm_align0:
ldmia r1, {r4-r8}
add r1, r1, r2
@@ pld [r1]
AVG_PW r7, r8
AVG_PW r6, r7
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r8}
subs r3, r3, #1
add r0, r0, r2
bne MC_put_x_16_arm_align0
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_16_arm_align1:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r8}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_QW 8, r4, r5, r6, r7, r8
AVG_PW r7, r8
AVG_PW r6, r7
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r8}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_16_arm_align2:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r8}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_QW 16, r4, r5, r6, r7, r8
AVG_PW r7, r8
AVG_PW r6, r7
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r8}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_16_arm_align3:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r8}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_QW 24, r4, r5, r6, r7, r8
AVG_PW r7, r8
AVG_PW r6, r7
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r8}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_16_arm_align_jt:
.word 0x01010101
.word MC_put_x_16_arm_align0
.word MC_put_x_16_arm_align1
.word MC_put_x_16_arm_align2
.word MC_put_x_16_arm_align3
@ ----------------------------------------------------------------
.align
.global MC_put_x_8_arm
MC_put_x_8_arm:
@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
@@ pld [r1]
stmfd sp!, {r4-r11,lr} @ R14 is also called LR
and r4, r1, #3
adr r5, MC_put_x_8_arm_align_jt
ldr r11, [r5]
mvn r12, r11
add r5, r5, r4, lsl #2
ldr pc, [r5, #4]
.macro ADJ_ALIGN_DW shift, R0, R1, R2
mov \R0, \R0, lsr #(\shift)
orr \R0, \R0, \R1, lsl #(32 - \shift)
mov \R1, \R1, lsr #(\shift)
orr \R1, \R1, \R2, lsl #(32 - \shift)
mov \R2, \R2, lsr #(\shift)
@ and \R4, \R4, #0xFF
.endm
MC_put_x_8_arm_align0:
ldmia r1, {r4-r6}
add r1, r1, r2
@@ pld [r1]
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r6}
subs r3, r3, #1
add r0, r0, r2
bne MC_put_x_8_arm_align0
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_8_arm_align1:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r6}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_DW 8, r4, r5, r6
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r6}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_8_arm_align2:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r6}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_DW 16, r4, r5, r6
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r6}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_8_arm_align3:
and r1, r1, #0xFFFFFFFC
1: ldmia r1, {r4-r6}
add r1, r1, r2
@@ pld [r1]
ADJ_ALIGN_DW 24, r4, r5, r6
AVG_PW r5, r6
AVG_PW r4, r5
stmia r0, {r5-r6}
subs r3, r3, #1
add r0, r0, r2
bne 1b
ldmfd sp!, {r4-r11,pc} @@ update PC with LR content.
MC_put_x_8_arm_align_jt:
.word 0x01010101
.word MC_put_x_8_arm_align0
.word MC_put_x_8_arm_align1
.word MC_put_x_8_arm_align2
.word MC_put_x_8_arm_align3
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