| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module 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 <qimage.h> |
| #include <private/qimage_p.h> |
| #include <private/qsimd_p.h> |
| |
| #if defined(__ARM_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 128 bits |
| const int offsetToAlignOn16Bytes = (reinterpret_cast<quintptr>(dst) >> 2) & 0x3; |
| for (int i = 0; i < offsetToAlignOn16Bytes; ++i) { |
| *dst++ = qRgb(src[0], src[1], src[2]); |
| src += 3; |
| } |
| |
| if ((len - offsetToAlignOn16Bytes) >= 16) { |
| const quint32 *const simdEnd = end - 15; |
| uint8x16x4_t dstVector; |
| #if Q_BYTE_ORDER == Q_BIG_ENDIAN |
| dstVector.val[0] = vdupq_n_u8(0xff); |
| #else |
| dstVector.val[3] = vdupq_n_u8(0xff); |
| #endif |
| do { |
| uint8x16x3_t srcVector = vld3q_u8(src); |
| src += 3 * 16; |
| #if Q_BYTE_ORDER == Q_BIG_ENDIAN |
| dstVector.val[1] = srcVector.val[0]; |
| dstVector.val[2] = srcVector.val[1]; |
| dstVector.val[3] = srcVector.val[2]; |
| #else |
| dstVector.val[0] = srcVector.val[2]; |
| dstVector.val[1] = srcVector.val[1]; |
| dstVector.val[2] = srcVector.val[0]; |
| #endif |
| vst4q_u8(reinterpret_cast<uint8_t*>(dst), dstVector); |
| dst += 16; |
| } while (dst < simdEnd); |
| } |
| |
| int i = 0; |
| int length = end - dst; |
| SIMD_EPILOGUE(i, length, 15) { |
| *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 // defined(__ARM_NEON__) |