From 3d8966f633b1419ad1696521b88822dec8999bf1 Mon Sep 17 00:00:00 2001
From: Sean Harmer <sean.harmer@kdab.com>
Date: Fri, 15 Jan 2016 14:31:40 +0000
Subject: Add surface selector to forward renderer framegraph

Change-Id: I9c436d3f5b9181075bfc0121174d530406f45c69
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
---
 src/render/defaults/qforwardrenderer.cpp | 18 +++++++++++++++++-
 src/render/defaults/qforwardrenderer.h   |  6 ++++++
 src/render/defaults/qforwardrenderer_p.h |  2 ++
 3 files changed, 25 insertions(+), 1 deletion(-)

(limited to 'src/render/defaults')

diff --git a/src/render/defaults/qforwardrenderer.cpp b/src/render/defaults/qforwardrenderer.cpp
index 0a44381ae..aa26a2295 100644
--- a/src/render/defaults/qforwardrenderer.cpp
+++ b/src/render/defaults/qforwardrenderer.cpp
@@ -42,6 +42,7 @@
 #include <Qt3DRender/qclearbuffer.h>
 #include <Qt3DRender/qannotation.h>
 #include <Qt3DRender/qfrustumculling.h>
+#include <Qt3DRender/qrendersurfaceselector.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -53,6 +54,7 @@ namespace Qt3DRender {
 */
 QForwardRendererPrivate::QForwardRendererPrivate()
     : QTechniqueFilterPrivate()
+    , m_surfaceSelector(new QRenderSurfaceSelector)
     , m_viewport(new QViewport())
     , m_cameraSelector(new QCameraSelector())
     , m_clearBuffer(new QClearBuffer())
@@ -67,7 +69,8 @@ void QForwardRendererPrivate::init()
     m_frustumCulling->setParent(m_clearBuffer);
     m_clearBuffer->setParent(m_cameraSelector);
     m_cameraSelector->setParent(m_viewport);
-    m_viewport->setParent(q);
+    m_viewport->setParent(m_surfaceSelector);
+    m_surfaceSelector->setParent(q);
 
     m_viewport->setRect(QRectF(0.0f, 0.0f, 1.0f, 1.0f));
     m_viewport->setClearColor(Qt::white);
@@ -107,6 +110,7 @@ QForwardRenderer::QForwardRenderer(QNode *parent)
     QObject::connect(d->m_viewport, SIGNAL(clearColorChanged(const QColor &)), this, SIGNAL(clearColorChanged(const QColor &)));
     QObject::connect(d->m_viewport, SIGNAL(rectChanged(const QRectF &)), this, SIGNAL(viewportRectChanged(const QRectF &)));
     QObject::connect(d->m_cameraSelector, SIGNAL(cameraChanged(Qt3DCore::QEntity *)), this, SIGNAL(cameraChanged(Qt3DCore::QEntity *)));
+    QObject::connect(d->m_surfaceSelector, SIGNAL(surfaceChanged(QSurface *)), this, SIGNAL(surfaceChanged(QSurface *)));
     d->init();
 }
 
@@ -140,6 +144,12 @@ void QForwardRenderer::setCamera(Qt3DCore::QEntity *camera)
     d->m_cameraSelector->setCamera(camera);
 }
 
+void QForwardRenderer::setSurface(QSurface *surface)
+{
+    Q_D(QForwardRenderer);
+    d->m_surfaceSelector->setSurface(surface);
+}
+
 /*!
     \property Qt3DRender::QForwardRenderer::viewportRect
 
@@ -175,6 +185,12 @@ Qt3DCore::QEntity *QForwardRenderer::camera() const
     return d->m_cameraSelector->camera();
 }
 
+QSurface *QForwardRenderer::surface() const
+{
+    Q_D(const QForwardRenderer);
+    return d->m_surfaceSelector->surface();
+}
+
 } // namespace Qt3DRender
 
 QT_END_NAMESPACE
diff --git a/src/render/defaults/qforwardrenderer.h b/src/render/defaults/qforwardrenderer.h
index 44f74983c..454235d37 100644
--- a/src/render/defaults/qforwardrenderer.h
+++ b/src/render/defaults/qforwardrenderer.h
@@ -43,6 +43,8 @@
 
 QT_BEGIN_NAMESPACE
 
+class QSurface;
+
 namespace Qt3DRender {
 
 class QForwardRendererPrivate;
@@ -50,6 +52,7 @@ class QForwardRendererPrivate;
 class QT3DRENDERSHARED_EXPORT QForwardRenderer : public QTechniqueFilter
 {
     Q_OBJECT
+    Q_PROPERTY(QSurface *surface READ surface WRITE setSurface NOTIFY surfaceChanged)
     Q_PROPERTY(QRectF viewportRect READ viewportRect WRITE setViewportRect NOTIFY viewportRectChanged)
     Q_PROPERTY(QColor clearColor READ clearColor WRITE setClearColor NOTIFY clearColorChanged)
     Q_PROPERTY(Qt3DCore::QEntity *camera READ camera WRITE setCamera NOTIFY cameraChanged)
@@ -60,16 +63,19 @@ public:
     QRectF viewportRect() const;
     QColor clearColor() const;
     Qt3DCore::QEntity *camera() const;
+    QSurface *surface() const;
 
 public Q_SLOTS:
     void setViewportRect(const QRectF &viewportRect);
     void setClearColor(const QColor &clearColor);
     void setCamera(Qt3DCore::QEntity *camera);
+    void setSurface(QSurface * surface);
 
 Q_SIGNALS:
     void viewportRectChanged(const QRectF &viewportRect);
     void clearColorChanged(const QColor &clearColor);
     void cameraChanged(Qt3DCore::QEntity *camera);
+    void surfaceChanged(QSurface *surface);
 
 private:
     Q_DECLARE_PRIVATE(QForwardRenderer)
diff --git a/src/render/defaults/qforwardrenderer_p.h b/src/render/defaults/qforwardrenderer_p.h
index cf352de09..e288331a4 100644
--- a/src/render/defaults/qforwardrenderer_p.h
+++ b/src/render/defaults/qforwardrenderer_p.h
@@ -59,12 +59,14 @@ class QViewport;
 class QClearBuffer;
 class QCameraSelector;
 class QFrustumCulling;
+class QRenderSurfaceSelector;
 
 class QForwardRendererPrivate: public QTechniqueFilterPrivate
 {
 public:
     QForwardRendererPrivate();
 
+    QRenderSurfaceSelector *m_surfaceSelector;
     QViewport *m_viewport;
     QCameraSelector *m_cameraSelector;
     QClearBuffer *m_clearBuffer;
-- 
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