diff options
Diffstat (limited to 'src/gui/painting/qdrawingprimitive_sse2_p.h')
-rw-r--r-- | src/gui/painting/qdrawingprimitive_sse2_p.h | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/src/gui/painting/qdrawingprimitive_sse2_p.h b/src/gui/painting/qdrawingprimitive_sse2_p.h index 2b4cdc286e..22d1205074 100644 --- a/src/gui/painting/qdrawingprimitive_sse2_p.h +++ b/src/gui/painting/qdrawingprimitive_sse2_p.h @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** 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 @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** 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. ** ** $QT_END_LICENSE$ @@ -236,4 +236,26 @@ QT_END_NAMESPACE #endif // __SSE2__ +QT_BEGIN_NAMESPACE +#if QT_COMPILER_SUPPORTS_HERE(SSE4_1) +QT_FUNCTION_TARGET(SSE4_1) +inline QRgb qUnpremultiply_sse4(QRgb p) +{ + const uint alpha = qAlpha(p); + const uint invAlpha = qt_inv_premul_factor[alpha]; + const __m128i via = _mm_set1_epi32(invAlpha); + const __m128i vr = _mm_set1_epi32(0x8000); + __m128i vl = _mm_unpacklo_epi8(_mm_cvtsi32_si128(p), _mm_setzero_si128()); + vl = _mm_unpacklo_epi16(vl, _mm_setzero_si128()); + vl = _mm_mullo_epi32(vl, via); + vl = _mm_add_epi32(vl, vr); + vl = _mm_srai_epi32(vl, 16); + vl = _mm_insert_epi32(vl, alpha, 3); + vl = _mm_packus_epi32(vl, _mm_setzero_si128()); + vl = _mm_packus_epi16(vl, _mm_setzero_si128()); + return _mm_cvtsi128_si32(vl); +} +#endif +QT_END_NAMESPACE + #endif // QDRAWINGPRIMITIVE_SSE2_P_H |