Add LoadBufferJob class

One LoadBufferJob will be created per unique dirty buffer so that buffer data
loading can be easily parallelized.

Change-Id: Icb0e4fcb2f0262d9a5eb349a01d30788f5138c0b
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

3 files changed, 152 insertions, 2 deletions

diff --git a/src/render/backend/jobs/loadbufferjob.cpp b/src/render/backend/jobs/loadbufferjob.cpp
new file mode 100644
index 000000000..32b8cbdf1
--- /dev/null
+++ b/src/render/backend/jobs/loadbufferjob.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Paul Lemire
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "loadbufferjob_p.h"
+#include <Qt3DRenderer/private/renderbuffer_p.h>
+#include <Qt3DRenderer/private/managers_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3D {
+
+namespace Render {
+
+
+LoadBufferJob::LoadBufferJob(const HBuffer &handle)
+    : QAspectJob()
+    , m_handle(handle)
+    , m_renderer(Q_NULLPTR)
+{
+}
+
+LoadBufferJob::~LoadBufferJob()
+{
+}
+
+void LoadBufferJob::run()
+{
+    // TO DO: Load a job functor
+
+    // Unset the dirty flag on the buffer
+    RenderBuffer *buffer = m_renderer->bufferManager()->data(m_handle);
+    buffer->unsetDirty();
+}
+
+} // Render
+
+} // Qt3D
+
+QT_END_NAMESPACE
diff --git a/src/render/backend/jobs/loadbufferjob_p.h b/src/render/backend/jobs/loadbufferjob_p.h
new file mode 100644
index 000000000..af1f32b37
--- /dev/null
+++ b/src/render/backend/jobs/loadbufferjob_p.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Paul Lemire
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3D_RENDER_LOADBUFFERJOB_H
+#define QT3D_RENDER_LOADBUFFERJOB_H
+
+#include <QSharedPointer>
+#include <Qt3DCore/qaspectjob.h>
+#include <Qt3DRenderer/private/handle_types_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3D {
+
+namespace Render {
+
+class Renderer;
+
+class LoadBufferJob : public Qt3D::QAspectJob
+{
+public:
+    explicit LoadBufferJob(const HBuffer &handle);
+    ~LoadBufferJob();
+
+    void setRenderer(Renderer *renderer) { m_renderer = renderer; }
+
+    // TO DO: Add a set functor method in here
+
+protected:
+    void run() Q_DECL_OVERRIDE;
+    HBuffer m_handle;
+    Renderer *m_renderer;
+};
+
+typedef QSharedPointer<LoadBufferJob> LoadBufferJobPtr;
+
+} // Render
+
+} // Qt3D
+
+QT_END_NAMESPACE
+
+#endif // QT3D_RENDER_LOADBUFFERJOB_H
diff --git a/src/render/backend/jobs/render-jobs.pri b/src/render/backend/jobs/render-jobs.pri
index fefc18001..2a4f4ddee 100644
--- a/src/render/backend/jobs/render-jobs.pri
+++ b/src/render/backend/jobs/render-jobs.pri
@@ -9,7 +9,8 @@ HEADERS += \
     $$PWD/loadscenejob_p.h \
     $$PWD/framecleanupjob_p.h \
     $$PWD/framepreparationjob_p.h \
-    $$PWD/loadtexturedatajob_p.h
+    $$PWD/loadtexturedatajob_p.h \
+    $$PWD/loadbufferjob_p.h
 
 SOURCES += \
     $$PWD/updateworldtransformjob.cpp \
@@ -20,4 +21,5 @@ SOURCES += \
     $$PWD/loadscenejob.cpp \
     $$PWD/framecleanupjob.cpp \
     $$PWD/framepreparationjob.cpp \
-    $$PWD/loadtexturedatajob.cpp
+    $$PWD/loadtexturedatajob.cpp \
+    $$PWD/loadbufferjob.cpp