/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation ([email protected]) ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ** the names of its contributors may be used to endorse or promote ** products derived from this software without specific prior written ** permission. ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "renderthread.h" RenderThread::RenderThread(QObject *parent) : QThread(parent) { m_abort = false; } RenderThread::~RenderThread() { mutex.lock(); m_abort = true; mutex.unlock(); wait(); } void RenderThread::processImage(const QImage &image) { if (image.isNull()) return; m_image = image; m_abort = false; start(); } void RenderThread::run() { int size = qMax(m_image.width()/20, m_image.height()/20); for (int s = size; s > 0; --s) { for (int c = 0; c < 400; ++c) { int x1 = qMax(0, (qrand() % m_image.width()) - s/2); int x2 = qMin(x1 + s/2 + 1, m_image.width()); int y1 = qMax(0, (qrand() % m_image.height()) - s/2); int y2 = qMin(y1 + s/2 + 1, m_image.height()); int n = 0; int red = 0; int green = 0; int blue = 0; for (int i = y1; i < y2; ++i) { for (int j = x1; j < x2; ++j) { QRgb pixel = m_image.pixel(j, i); red += qRed(pixel); green += qGreen(pixel); blue += qBlue(pixel); n += 1; } } Block block(QRect(x1, y1, x2 - x1 + 1, y2 - y1 + 1), QColor(red/n, green/n, blue/n)); emit sendBlock(block); if (m_abort) return; msleep(10); } } } void RenderThread::stopProcess() { mutex.lock(); m_abort = true; mutex.unlock(); }