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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qvideoframeconversionhelper_p.h"
#ifdef QT_COMPILER_SUPPORTS_SSSE3
QT_BEGIN_NAMESPACE
namespace {
template<int a, int r, int g, int b>
void convert_to_ARGB32_ssse3(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
__m128i shuffleMask = _mm_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);
#else
__m128i shuffleMask = _mm_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);
#endif
using Pixel = const ArgbPixel<a, r, g, b>;
for (int y = 0; y < height; ++y) {
const auto *pixel = reinterpret_cast<const Pixel *>(src);
int x = 0;
ALIGN(16, argb, x, width) {
*argb = pixel->convert();
++pixel;
++argb;
}
for (; x < width - 7; x += 8) {
__m128i pixelData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(pixel));
__m128i pixelData2 = _mm_loadu_si128(reinterpret_cast<const __m128i*>(pixel + 4));
pixel += 8;
pixelData = _mm_shuffle_epi8(pixelData, shuffleMask);
pixelData2 = _mm_shuffle_epi8(pixelData2, shuffleMask);
_mm_store_si128(reinterpret_cast<__m128i*>(argb), pixelData);
_mm_store_si128(reinterpret_cast<__m128i*>(argb + 4), pixelData2);
argb += 8;
}
// leftovers
for (; x < width; ++x) {
*argb = pixel->convert();
++pixel;
++argb;
}
src += stride;
}
}
}
void QT_FASTCALL qt_convert_ARGB8888_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_ssse3<0, 1, 2, 3>(frame, output);
}
void QT_FASTCALL qt_convert_ABGR8888_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_ssse3<0, 3, 2, 1>(frame, output);
}
void QT_FASTCALL qt_convert_RGBA8888_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_ssse3<3, 0, 1, 2>(frame, output);
}
void QT_FASTCALL qt_convert_BGRA8888_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
{
convert_to_ARGB32_ssse3<3, 2, 1, 0>(frame, output);
}
QT_END_NAMESPACE
#endif
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