1 files changed, 82 insertions, 0 deletions
diff --git a/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp b/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp
new file mode 100644
index 000000000..b15617cef
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+++ b/src/multimedia/video/qvideoframeconversionhelper_ssse3.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qvideoframeconversionhelper_p.h"
+
+#ifdef QT_COMPILER_SUPPORTS_SSSE3
+
+QT_BEGIN_NAMESPACE
+
+void QT_FASTCALL qt_convert_BGRA32_to_ARGB32_ssse3(const QVideoFrame &frame, uchar *output)
+{
+    FETCH_INFO_PACKED(frame)
+    MERGE_LOOPS(width, height, stride, 4)
+    quint32 *argb = reinterpret_cast<quint32*>(output);
+
+    __m128i shuffleMask = _mm_set_epi8(12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3);
+
+    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 - 7; x += 8) {
+            __m128i pixelData = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra));
+            __m128i pixelData2 = _mm_loadu_si128(reinterpret_cast<const __m128i*>(bgra + 4));
+            bgra += 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 = qConvertBGRA32ToARGB32(*bgra);
+            ++bgra;
+            ++argb;
+        }
+
+        src += stride;
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif