| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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 1.1, 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. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <qimage.h> |
| #include <private/qimage_p.h> |
| #include <private/qsimd_p.h> |
| |
| #ifdef QT_HAVE_NEON |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_GUI_EXPORT void QT_FASTCALL qt_convert_rgb888_to_rgb32_neon(quint32 *dst, const uchar *src, int len) |
| { |
| if (!len) |
| return; |
| |
| const quint32 *const end = dst + len; |
| |
| // align dst on 64 bits |
| const int offsetToAlignOn8Bytes = (reinterpret_cast<quintptr>(dst) >> 2) & 0x1; |
| for (int i = 0; i < offsetToAlignOn8Bytes; ++i) { |
| *dst++ = qRgb(src[0], src[1], src[2]); |
| src += 3; |
| } |
| |
| if ((len - offsetToAlignOn8Bytes) >= 8) { |
| const quint32 *const simdEnd = end - 7; |
| register uint8x8_t fullVector asm ("d3") = vdup_n_u8(0xff); |
| do { |
| #if Q_BYTE_ORDER == Q_BIG_ENDIAN |
| asm volatile ( |
| "vld3.8 { d4, d5, d6 }, [%[SRC]] !\n\t" |
| "vst4.8 { d3, d4, d5, d6 }, [%[DST],:64] !\n\t" |
| : [DST]"+r" (dst), [SRC]"+r" (src) |
| : "w"(fullVector) |
| : "memory", "d4", "d5", "d6" |
| ); |
| #else |
| asm volatile ( |
| "vld3.8 { d0, d1, d2 }, [%[SRC]] !\n\t" |
| "vswp d0, d2\n\t" |
| "vst4.8 { d0, d1, d2, d3 }, [%[DST],:64] !\n\t" |
| : [DST]"+r" (dst), [SRC]"+r" (src) |
| : "w"(fullVector) |
| : "memory", "d0", "d1", "d2" |
| ); |
| #endif |
| } while (dst < simdEnd); |
| } |
| |
| while (dst != end) { |
| *dst++ = qRgb(src[0], src[1], src[2]); |
| src += 3; |
| } |
| } |
| |
| void convert_RGB888_to_RGB32_neon(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags) |
| { |
| Q_ASSERT(src->format == QImage::Format_RGB888); |
| Q_ASSERT(dest->format == QImage::Format_RGB32 || dest->format == QImage::Format_ARGB32 || dest->format == QImage::Format_ARGB32_Premultiplied); |
| Q_ASSERT(src->width == dest->width); |
| Q_ASSERT(src->height == dest->height); |
| |
| const uchar *src_data = (uchar *) src->data; |
| quint32 *dest_data = (quint32 *) dest->data; |
| |
| for (int i = 0; i < src->height; ++i) { |
| qt_convert_rgb888_to_rgb32_neon(dest_data, src_data, src->width); |
| src_data += src->bytes_per_line; |
| dest_data = (quint32 *)((uchar*)dest_data + dest->bytes_per_line); |
| } |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_HAVE_NEON |