mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2026-05-01 03:19:18 +08:00
62c19d062d
Removed all SSE functions, macros, dispatching logic, and related unit tests across the repository to reduce code size and complexity. Left cpuid detection intact. Supported architectures like AVX2, NEON, SVE, etc. are unaffected. R=rrwinterton@gmail.com Bug: None Test: Build and run libyuv_unittest Change-Id: Id19608dba35b79c4c8fc31f920a6a968883d300f
93 lines
3.6 KiB
C++
93 lines
3.6 KiB
C++
/*
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* Copyright 2015 The LibYuv 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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#include "libyuv/rotate_row.h"
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#include "libyuv/row.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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// This module is for GCC x86 and x64.
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#if !defined(LIBYUV_DISABLE_X86) && \
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(defined(__x86_64__) || defined(__i386__)) && \
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!defined(LIBYUV_ENABLE_ROWWIN)
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// Transpose 8x8. 32 or 64 bit, but not NaCL for 64 bit.
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// Transpose 16x8. 64 bit
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// Transpose UV 8x8. 64 bit.
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#if defined(HAS_TRANSPOSE4X4_32_AVX2)
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// Transpose 32 bit values (ARGB)
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void Transpose4x4_32_AVX2(const uint8_t* src,
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int src_stride,
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uint8_t* dst,
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int dst_stride,
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int width) {
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asm volatile(
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// Main loop transpose 2 blocks of 4x4. Read a column, write a row.
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"1: \n"
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"vmovdqu (%0),%%xmm0 \n" // a b c d
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"vmovdqu (%0,%3),%%xmm1 \n" // e f g h
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"lea (%0,%3,2),%0 \n" // src += stride * 2
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"vmovdqu (%0),%%xmm2 \n" // i j k l
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"vmovdqu (%0,%3),%%xmm3 \n" // m n o p
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"lea (%0,%3,2),%0 \n" // src += stride * 2
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"vinserti128 $1,(%0),%%ymm0,%%ymm0 \n" // a b c d
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"vinserti128 $1,(%0,%3),%%ymm1,%%ymm1 \n" // e f g h
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"lea (%0,%3,2),%0 \n" // src += stride * 2
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"vinserti128 $1,(%0),%%ymm2,%%ymm2 \n" // i j k l
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"vinserti128 $1,(%0,%3),%%ymm3,%%ymm3 \n" // m n o p
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"lea (%0,%3,2),%0 \n" // src += stride * 2
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// Transpose 2x2
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"vpunpckldq %%ymm1,%%ymm0,%%ymm4 \n" // a e b f from row 0, 1
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"vpunpckldq %%ymm3,%%ymm2,%%ymm5 \n" // i m j n from row 2, 3
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"vpunpckhdq %%ymm1,%%ymm0,%%ymm6 \n" // c g d h from row 0, 1
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"vpunpckhdq %%ymm3,%%ymm2,%%ymm7 \n" // k o l p from row 2, 3
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// Transpose 4x4
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"vpunpcklqdq %%ymm5,%%ymm4,%%ymm0 \n" // a e i m from row 0, 1
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"vpunpckhqdq %%ymm5,%%ymm4,%%ymm1 \n" // b f j n from row 0, 1
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"vpunpcklqdq %%ymm7,%%ymm6,%%ymm2 \n" // c g k o from row 2, 3
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"vpunpckhqdq %%ymm7,%%ymm6,%%ymm3 \n" // d h l p from row 2, 3
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"vmovdqu %%ymm0,(%1) \n"
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"lea 32(%1,%4),%1 \n" // dst += stride + 32
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"vmovdqu %%ymm1,-32(%1) \n"
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"vmovdqu %%ymm2,-32(%1,%4) \n"
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"vmovdqu %%ymm3,-32(%1,%4,2) \n"
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"sub %4,%1 \n"
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"sub $0x8,%2 \n"
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"jg 1b \n"
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"vzeroupper \n"
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: "+r"(src), // %0
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"+r"(dst), // %1
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"+rm"(width) // %2
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: "r"((ptrdiff_t)(src_stride)), // %3
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"r"((ptrdiff_t)(dst_stride)) // %4
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: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
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"xmm7");
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}
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#endif // defined(HAS_TRANSPOSE4X4_32_AVX2)
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#endif // defined(__x86_64__) || defined(__i386__)
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#ifdef __cplusplus
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} // extern "C"
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} // namespace libyuv
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#endif
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