7186a2dd86
It in essence refactors the code for both the interpolation filtering and the convolution. This change includes the moving of all the files as well as the changing of the code from vp9_ prefix to vpx_ prefix accordingly, for underneath architectures: (1) x86; (2) arm/neon; and (3) mips/msa. The work on mips/drsp2 will be done in a separate change list. Change-Id: Ic3ce7fb7f81210db7628b373c73553db68793c46
85 lines
2.5 KiB
NASM
85 lines
2.5 KiB
NASM
;
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; Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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EXPORT |vpx_convolve_copy_neon|
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ARM
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REQUIRE8
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PRESERVE8
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AREA ||.text||, CODE, READONLY, ALIGN=2
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|vpx_convolve_copy_neon| PROC
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push {r4-r5, lr}
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ldrd r4, r5, [sp, #28]
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cmp r4, #32
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bgt copy64
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beq copy32
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cmp r4, #8
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bgt copy16
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beq copy8
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b copy4
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copy64
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sub lr, r1, #32
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sub r3, r3, #32
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copy64_h
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pld [r0, r1, lsl #1]
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vld1.8 {q0-q1}, [r0]!
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vld1.8 {q2-q3}, [r0], lr
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vst1.8 {q0-q1}, [r2@128]!
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vst1.8 {q2-q3}, [r2@128], r3
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subs r5, r5, #1
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bgt copy64_h
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pop {r4-r5, pc}
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copy32
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pld [r0, r1, lsl #1]
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vld1.8 {q0-q1}, [r0], r1
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pld [r0, r1, lsl #1]
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vld1.8 {q2-q3}, [r0], r1
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vst1.8 {q0-q1}, [r2@128], r3
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vst1.8 {q2-q3}, [r2@128], r3
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subs r5, r5, #2
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bgt copy32
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pop {r4-r5, pc}
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copy16
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pld [r0, r1, lsl #1]
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vld1.8 {q0}, [r0], r1
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pld [r0, r1, lsl #1]
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vld1.8 {q1}, [r0], r1
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vst1.8 {q0}, [r2@128], r3
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vst1.8 {q1}, [r2@128], r3
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subs r5, r5, #2
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bgt copy16
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pop {r4-r5, pc}
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copy8
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pld [r0, r1, lsl #1]
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vld1.8 {d0}, [r0], r1
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pld [r0, r1, lsl #1]
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vld1.8 {d2}, [r0], r1
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vst1.8 {d0}, [r2@64], r3
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vst1.8 {d2}, [r2@64], r3
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subs r5, r5, #2
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bgt copy8
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pop {r4-r5, pc}
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copy4
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ldr r12, [r0], r1
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str r12, [r2], r3
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subs r5, r5, #1
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bgt copy4
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pop {r4-r5, pc}
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ENDP
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END
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