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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_SSE2
QT_BEGIN_NAMESPACE
void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_sse2(const QVideoFrame &frame, uchar *output)
{
FETCH_INFO_PACKED(frame)
MERGE_LOOPS(width, height, stride, 4)
quint32 *argb = reinterpret_cast<quint32*>(output);
const __m128i zero = _mm_setzero_si128();
for (int y = 0; y < height; ++y) {
const quint32 *bgra = reinterpret_cast<const quint32*>(src);
int x = 0;
ALIGN(16, argb, x, width) {
*argb = qConvertBGRA32ToARGB32(*bgra);
++bgra;
++argb;
}
for (; x < width - 3; x += 4) {
__m128i pixelData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra));
bgra += 4;
__m128i gaComponents = _mm_unpacklo_epi8(pixelData, zero);
__m128i brComponents = _mm_unpackhi_epi8(pixelData, zero);
gaComponents = _mm_shufflelo_epi16(_mm_shufflehi_epi16(gaComponents, _MM_SHUFFLE(0, 1, 2, 3)), _MM_SHUFFLE(0, 1, 2, 3)); // swap GA
brComponents = _mm_shufflelo_epi16(_mm_shufflehi_epi16(brComponents, _MM_SHUFFLE(0, 1, 2, 3)), _MM_SHUFFLE(0, 1, 2, 3)); // swap BR
pixelData = _mm_packus_epi16(gaComponents, brComponents);
_mm_store_si128(reinterpret_cast<__m128i*>(argb), pixelData);
argb += 4;
}
// leftovers
for (; x < width; ++x) {
*argb = qConvertBGRA32ToARGB32(*bgra);
++bgra;
++argb;
}
src += stride;
}
}
QT_END_NAMESPACE
#endif
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