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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "qvideoframeconversionhelper_p.h"
#ifdef QT_COMPILER_SUPPORTS_AVX2
QT_BEGIN_NAMESPACE
namespace {
template<int a, int r, int g, int b>
void convert_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
{
FETCH_INFO_PACKED(frame)
MERGE_LOOPS(width, height, stride, 4)
quint32 *argb = reinterpret_cast<quint32*>(output);
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
__m256i shuffleMask = _mm256_set_epi8(12 + a, 12 + r, 12 + g, 12 + b,
8 + a, 8 + r, 8 + g, 8 + b,
4 + a, 4 + r, 4 + g, 4 + b,
0 + a, 0 + r, 0 + g, 0 + b,
12 + a, 12 + r, 12 + g, 12 + b,
8 + a, 8 + r, 8 + g, 8 + b,
4 + a, 4 + r, 4 + g, 4 + b,
0 + a, 0 + r, 0 + g, 0 + b);
#else
__m256i shuffleMask = _mm256_set_epi8(15 - a, 15 - r, 15 - g, 15 - b,
11 - a, 11 - r, 11 - g, 11 - b,
7 - a, 7 - r, 7 - g, 7 - b,
3 - a, 3 - r, 3 - g, 3 - b,
15 - a, 15 - r, 15 - g, 15 - b,
11 - a, 11 - r, 11 - g, 11 - b,
7 - a, 7 - r, 7 - g, 7 - b,
3 - a, 3 - r, 3 - g, 3 - b);
#endif
using Pixel = const RgbPixel<a, r, g, b>;
for (int y = 0; y < height; ++y) {
auto *pixel = reinterpret_cast<const Pixel *>(src);
int x = 0;
ALIGN(32, argb, x, width) {
*argb = pixel->convert();
++pixel;
++argb;
}
for (; x < width - 15; x += 16) {
__m256i pixelData = _mm256_loadu_si256(reinterpret_cast<const __m256i*>(pixel));
__m256i pixelData2 = _mm256_loadu_si256(reinterpret_cast<const __m256i*>(pixel + 8));
pixel += 16;
pixelData = _mm256_shuffle_epi8(pixelData, shuffleMask);
pixelData2 = _mm256_shuffle_epi8(pixelData2, shuffleMask);
_mm256_store_si256(reinterpret_cast<__m256i*>(argb), pixelData);
_mm256_store_si256(reinterpret_cast<__m256i*>(argb + 8), pixelData2);
argb += 16;
}
// leftovers
for (; x < width; ++x) {
*argb = pixel->convert();
++pixel;
++argb;
}
src += stride;
}
}
}
void QT_FASTCALL qt_convert_ARGB8888_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_avx2<0, 1, 2, 3>(frame, output);
}
void QT_FASTCALL qt_convert_ABGR8888_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_avx2<0, 3, 2, 1>(frame, output);
}
void QT_FASTCALL qt_convert_RGBA8888_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_avx2<3, 0, 1, 2>(frame, output);
}
void QT_FASTCALL qt_convert_BGRA8888_to_ARGB32_avx2(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_avx2<3, 2, 1, 0>(frame, output);
}
QT_END_NAMESPACE
#endif
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