diff options
Diffstat (limited to 'src/render/renderers/opengl/renderer/commandthread.cpp')
| -rw-r--r-- | src/render/renderers/opengl/renderer/commandthread.cpp | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/src/render/renderers/opengl/renderer/commandthread.cpp b/src/render/renderers/opengl/renderer/commandthread.cpp deleted file mode 100644 index a518d3b68..000000000 --- a/src/render/renderers/opengl/renderer/commandthread.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt3D 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 "commandthread_p.h" -#include <Qt3DRender/private/glcommands_p.h> -#include <Qt3DRender/private/offscreensurfacehelper_p.h> -#include <Qt3DRender/private/graphicscontext_p.h> -#include <Qt3DRender/private/shadercache_p.h> -#include <QOpenGLContext> -#include <QOffscreenSurface> -#include <QDebug> - -QT_BEGIN_NAMESPACE - -namespace Qt3DRender { - -namespace Render { - -CommandThread::CommandThread(Renderer *renderer) - : QThread() - , m_renderer(renderer) - , m_waitForStartSemaphore(0) - , m_initializedSemaphore(0) - , m_commandRequestedSemaphore(0) - , m_commandExecutionSemaphore(0) - , m_mainContext(nullptr) - , m_shaderCache(nullptr) - , m_offsreenSurfaceHelper(nullptr) - , m_currentCommand(nullptr) - , m_running(0) -{ -} - -CommandThread::~CommandThread() -{ - Q_ASSERT(!isRunning()); -} - -void CommandThread::setShaderCache(ShaderCache *shaderCache) -{ - m_shaderCache = shaderCache; -} - -// Called by RenderThread or MainThread (Scene3d) -void CommandThread::initialize(QOpenGLContext *mainContext, OffscreenSurfaceHelper *offsreenSurfaceHelper) -{ - // Start the thread - start(); - - // Wait for thread to be started - m_waitForStartSemaphore.acquire(); - - m_mainContext = mainContext; - m_offsreenSurfaceHelper = offsreenSurfaceHelper; - Q_ASSERT(m_mainContext && offsreenSurfaceHelper); - - // Initialize shared context and resources for the thread. This must be - // done here since some platforms do not allow context sharing to be set up - // with contexts created on different threads. (Windows with WGL, in - // particular; resource sharing works fine later on, what matters is the - // thread the wglShareLists call is made on) - m_localContext.reset(new QOpenGLContext()); - m_localContext->setFormat(m_mainContext->format()); - m_localContext->setShareContext(m_mainContext); - if (!m_localContext->create()) - qWarning("CommandThread: Failed to create local context"); - m_localContext->moveToThread(this); - - m_running.fetchAndStoreOrdered(1); - - // Allow thread to proceed - m_initializedSemaphore.release(); -} - -// Called by RenderThread or MainThread (Scene3D) -void CommandThread::shutdown() -{ - m_running.fetchAndStoreOrdered(0); - - // Unblock thread - m_commandRequestedSemaphore.release(1); - - // Wait for thread to exit - wait(); - - // Reset semaphores (in case we ever want to restart) - m_waitForStartSemaphore.acquire(m_waitForStartSemaphore.available()); - m_initializedSemaphore.acquire(m_initializedSemaphore.available()); - m_commandRequestedSemaphore.acquire(m_commandRequestedSemaphore.available()); - m_commandExecutionSemaphore.acquire(m_commandExecutionSemaphore.available()); - m_localContext.reset(); -} - -// Any thread can call this, this is a blocking command -void CommandThread::executeCommand(GLCommand *command) -{ - if (!isRunning()) - return; - - // We lock to prevent any other call to executeCommand to be executed - // before we have received the result of our command - m_blockingCallerMutex.lock(); - - // Store command to be executed - m_currentCommand = command; - - // Allow thread to proceed and execute command - m_commandRequestedSemaphore.release(); - - // Wait for thread to be done - m_commandExecutionSemaphore.acquire(); - - // Reset command - m_currentCommand = nullptr; - - // Unlock blocking semaphore so that other calls to executeCommand - // can proceed - m_blockingCallerMutex.unlock(); -} - -void CommandThread::run() -{ - // Allow initialize to proceed - m_waitForStartSemaphore.release(); - - // Wait for initialize to be completed - m_initializedSemaphore.acquire(); - - Q_ASSERT(m_mainContext && m_shaderCache); - - // Initialize GraphicsContext - m_graphicsContext.reset(new GraphicsContext()); - m_graphicsContext->setShaderCache(m_shaderCache); - m_graphicsContext->setOpenGLContext(m_localContext.data()); - - bool initialized = false; - while (true) { - - // Wait for command - m_commandRequestedSemaphore.acquire(); - - // Are we still running? - if (!m_running.loadRelaxed()) { - m_graphicsContext->doneCurrent(); - // to prevent executeCommand being locked - m_commandExecutionSemaphore.release(); - break; - } - - if (Q_UNLIKELY(!initialized)) { - QOffscreenSurface *offscreenSurface = m_offsreenSurfaceHelper->offscreenSurface(); - Q_ASSERT(offscreenSurface); - m_graphicsContext->makeCurrent(offscreenSurface); - initialized = true; - } - - m_currentCommand->execute(m_renderer, m_graphicsContext.data()); - - // Allow caller to proceed as we are done with the command - m_commandExecutionSemaphore.release(); - } -} - -} // Render - -} // Qt3DRender - -QT_END_NAMESPACE |