1 files changed, 144 insertions, 0 deletions
diff --git a/src/runtimerender/q3dsqmlrender.cpp b/src/runtimerender/q3dsqmlrender.cpp
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+++ b/src/runtimerender/q3dsqmlrender.cpp
@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** 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 General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) 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.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-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3dsqmlrender.h"
+#include "q3dsqmlstreamservice.h"
+#include "render/Qt3DSRenderContext.h"
+
+#include <QSize>
+#include <QOpenGLContext>
+
+Q3DSQmlRender::Q3DSQmlRender(IQt3DSRenderContext &inRenderContext, const char *asset)
+    : m_RenderContext(inRenderContext)
+    , m_qmlStreamRenderer(nullptr)
+    , m_offscreenRenderType(inRenderContext.GetStringTable().RegisterStr(GetRendererName()))
+    , m_assetString(inRenderContext.GetStringTable().RegisterStr(asset))
+    , m_callback(nullptr)
+    , mRefCount(0)
+{
+
+}
+
+Q3DSQmlRender::~Q3DSQmlRender()
+{
+    m_qmlStreamRenderer =
+            IQ3DSQmlStreamService::getQmlStreamService()->getRenderer(m_assetString.c_str());
+    if (m_qmlStreamRenderer)
+        m_qmlStreamRenderer->uninitialize();
+}
+
+CRegisteredString Q3DSQmlRender::GetOffscreenRendererType()
+{
+    return m_offscreenRenderType;
+}
+
+NVRenderTextureFormats::Enum convertTextureFormat(E_TEXTURE_FORMAT fmt)
+{
+    NVRenderTextureFormats::Enum ret;
+
+    switch (fmt) {
+    case E_TEXTURE_RGBA8:
+        ret = NVRenderTextureFormats::RGBA8;
+        break;
+    default:
+        ret = NVRenderTextureFormats::Unknown;
+        break;
+    }
+
+    return ret;
+}
+
+SOffscreenRendererEnvironment Q3DSQmlRender::GetDesiredEnvironment(QT3DSVec2 inPresScale)
+{
+    QSize size(0, 0);
+    E_TEXTURE_FORMAT format = E_TEXTURE_UNKNOWN;
+
+    if (!m_qmlStreamRenderer)
+        initializeRenderer();
+
+    if (m_qmlStreamRenderer) {
+        size = m_qmlStreamRenderer->getDesiredSize();
+        format = m_qmlStreamRenderer->getDesiredFormat();
+    }
+    return SOffscreenRendererEnvironment(
+        (QT3DSU32)(size.width() * inPresScale.x), (QT3DSU32)(size.height() * inPresScale.y),
+        convertTextureFormat(format), OffscreenRendererDepthValues::Depth24, false,
+        AAModeValues::NoAA);
+}
+
+SOffscreenRenderFlags Q3DSQmlRender::NeedsRender(const SOffscreenRendererEnvironment &inEnvironment,
+                                                 QT3DSVec2 inPresentationScaleFactor,
+                                                 const SRenderInstanceId instanceId)
+{
+    Q_UNUSED(inEnvironment);
+    Q_UNUSED(inPresentationScaleFactor);
+    Q_UNUSED(instanceId);
+    bool render = false;
+    if (!m_qmlStreamRenderer)
+        initializeRenderer();
+    if (m_qmlStreamRenderer)
+        render = m_qmlStreamRenderer->isUpdateRequested();
+    return SOffscreenRenderFlags(false, render);
+}
+
+void Q3DSQmlRender::Render(const SOffscreenRendererEnvironment &inEnvironment,
+                           NVRenderContext &inRenderContext, QT3DSVec2 inPresentationScaleFactor,
+                           SScene::RenderClearCommand inColorBufferNeedsClear,
+                           const SRenderInstanceId instanceId)
+{
+    Q_UNUSED(inEnvironment)
+    Q_UNUSED(inPresentationScaleFactor)
+    Q_UNUSED(inColorBufferNeedsClear)
+    Q_UNUSED(instanceId)
+    if (m_qmlStreamRenderer) {
+        inRenderContext.PushPropertySet();
+
+        m_qmlStreamRenderer->render();
+
+        inRenderContext.PopPropertySet(true);
+
+        if (m_callback)
+            m_callback->onOffscreenRendererFrame(QString(m_assetString.c_str()));
+    }
+}
+
+void Q3DSQmlRender::initializeRenderer()
+{
+    m_qmlStreamRenderer
+            = IQ3DSQmlStreamService::getQmlStreamService()->getRenderer(m_assetString.c_str());
+    if (m_qmlStreamRenderer) {
+        if (!m_qmlStreamRenderer->initialize(
+                    QT_PREPEND_NAMESPACE(QOpenGLContext)::currentContext(),
+                    QT_PREPEND_NAMESPACE(QOpenGLContext)::currentContext()->surface())) {
+            m_qmlStreamRenderer = nullptr;
+        } else if (m_callback) {
+            m_callback->onOffscreenRendererInitialized(QString(m_assetString.c_str()));
+        }
+    }
+}