39 lines
564 B
ArmAsm
39 lines
564 B
ArmAsm
//
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// MNNRGBAToBGRFast.S
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//
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// Created by MNN on 2024/08/28.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#ifdef __arm__
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#ifndef __aarch64__
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#include "MNNAsmGlobal.h"
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.text
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.align 5
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asm_function MNNRGBAToBGRFast
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// void MNNRGBAToBGRFast(const unsigned char* source, unsigned char* dest, size_t count);
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// Auto Load: r0: source, r1: dest, r2: count
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push {lr}
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L1:
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vld4.8 {d0, d1, d2, d3}, [r0]! // r,g,b,a
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// swap d0,d2
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vmov.32 d4, d2
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vmov.32 d2, d0
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vmov.32 d0, d4
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vst3.8 {d0, d1, d2}, [r1]!
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subs r2, r2, #1
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bne L1
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End:
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pop {pc}
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#endif
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#endif
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