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Diffstat (limited to 'src/gui/painting/qdrawhelper_sse_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_sse_p.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/gui/painting/qdrawhelper_sse_p.h b/src/gui/painting/qdrawhelper_sse_p.h new file mode 100644 index 0000000..1cb4cce --- /dev/null +++ b/src/gui/painting/qdrawhelper_sse_p.h @@ -0,0 +1,182 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QDRAWHELPER_SSE_P_H +#define QDRAWHELPER_SSE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <private/qdrawhelper_mmx_p.h> + +#ifdef QT_HAVE_SSE + +#ifdef QT_LINUXBASE +// this is an evil hack - the posix_memalign declaration in LSB +// is wrong - see http://bugs.linuxbase.org/show_bug.cgi?id=2431 +# define posix_memalign _lsb_hack_posix_memalign +# include <xmmintrin.h> +# undef posix_memalign +#else +# include <xmmintrin.h> +#endif + +QT_BEGIN_NAMESPACE + +#ifndef _MM_SHUFFLE +#define _MM_SHUFFLE(fp3,fp2,fp1,fp0) \ + (((fp3) << 6) | ((fp2) << 4) | ((fp1) << 2) | (fp0)) +#endif + +struct QSSEIntrinsics : public QMMXIntrinsics +{ + static inline m64 alpha(m64 x) { + return _mm_shuffle_pi16 (x, _MM_SHUFFLE(3, 3, 3, 3)); + } + + static inline m64 _load_alpha(uint x, const m64 &mmx_0x0000) { + m64 t = _mm_unpacklo_pi8(_mm_cvtsi32_si64(x), mmx_0x0000); + return _mm_shuffle_pi16 (t, _MM_SHUFFLE(0, 0, 0, 0)); + } +}; + +template <class MM> +inline void qt_memfill32_sse_template(quint32 *dest, quint32 value, int count) +{ + if (count < 7) { + switch (count) { + case 6: *dest++ = value; + case 5: *dest++ = value; + case 4: *dest++ = value; + case 3: *dest++ = value; + case 2: *dest++ = value; + case 1: *dest = value; + } + return; + }; + + __m64 *dst64 = reinterpret_cast<__m64*>(dest); + const __m64 value64 = _mm_set_pi32(value, value); + int count64 = count / 2; + + int n = (count64 + 3) / 4; + switch (count64 & 0x3) { + case 0: do { _mm_stream_pi(dst64++, value64); + case 3: _mm_stream_pi(dst64++, value64); + case 2: _mm_stream_pi(dst64++, value64); + case 1: _mm_stream_pi(dst64++, value64); + } while (--n > 0); + } + + if (count & 0x1) + dest[count - 1] = value; + + MM::end(); +} + +template <class MM> +inline void qt_bitmapblit16_sse_template(QRasterBuffer *rasterBuffer, + int x, int y, + quint32 color, + const uchar *src, + int width, int height, int stride) +{ + const quint16 c = qt_colorConvert<quint16, quint32>(color, 0); + quint16 *dest = reinterpret_cast<quint16*>(rasterBuffer->scanLine(y)) + x; + const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint16); + + const __m64 c64 = _mm_set1_pi16(c); +#if defined(Q_OS_WIN) +# pragma warning(disable: 4309) // truncation of constant value +#endif + const __m64 maskmask1 = _mm_set_pi16(0x1010, 0x2020, 0x4040, 0x8080); + const __m64 maskadd1 = _mm_set_pi16(0x7070, 0x6060, 0x4040, 0x0000); + + if (width > 4) { + const __m64 maskmask2 = _mm_set_pi16(0x0101, 0x0202, 0x0404, 0x0808); + const __m64 maskadd2 = _mm_set_pi16(0x7f7f, 0x7e7e, 0x7c7c, 0x7878); + + while (height--) { + for (int x = 0; x < width; x += 8) { + const quint8 s = src[x >> 3]; + if (!s) + continue; + __m64 mask1 = _mm_set1_pi8(s); + __m64 mask2 = mask1; + mask1 = _m_pand(mask1, maskmask1); + mask1 = _mm_add_pi16(mask1, maskadd1); + _mm_maskmove_si64(c64, mask1, (char*)(dest + x)); + mask2 = _m_pand(mask2, maskmask2); + mask2 = _mm_add_pi16(mask2, maskadd2); + _mm_maskmove_si64(c64, mask2, (char*)(dest + x + 4)); + } + dest += destStride; + src += stride; + } + } else { + while (height--) { + const quint8 s = *src; + if (s) { + __m64 mask1 = _mm_set1_pi8(s); + mask1 = _m_pand(mask1, maskmask1); + mask1 = _mm_add_pi16(mask1, maskadd1); + _mm_maskmove_si64(c64, mask1, (char*)(dest)); + } + dest += destStride; + src += stride; + } + } + + MM::end(); +} + +QT_END_NAMESPACE + +#endif // QT_HAVE_SSE +#endif // QDRAWHELPER_SSE_P_H |