QAbstractTextureImage creates creation changes

Backend type handles them too.

Change-Id: Ibd87c2e5a464c0953c1b017db21e7831ca4c6681
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

5 files changed, 46 insertions, 0 deletions

diff --git a/src/render/texture/qabstracttextureimage.cpp b/src/render/texture/qabstracttextureimage.cpp
index 0f8af8d58..2f5c7e3c0 100644
--- a/src/render/texture/qabstracttextureimage.cpp
+++ b/src/render/texture/qabstracttextureimage.cpp
@@ -219,6 +219,18 @@ QAbstractTextureImage::QAbstractTextureImage(QAbstractTextureImagePrivate &dd, Q
 {
 }
 
+Qt3DCore::QNodeCreatedChangeBasePtr QAbstractTextureImage::createNodeCreationChange() const
+{
+    auto creationChange = Qt3DCore::QNodeCreatedChangePtr<QAbstractTextureImageData>::create(this);
+    auto &data = creationChange->data;
+    Q_D(const QAbstractTextureImage);
+    data.mipLevel = d->m_mipLevel;
+    data.layer = d->m_layer;
+    data.face = d->m_face;
+    data.generator = dataGenerator();
+    return creationChange;
+}
+
 } // namespace Qt3DRender
 
 QT_END_NAMESPACE
diff --git a/src/render/texture/qabstracttextureimage.h b/src/render/texture/qabstracttextureimage.h
index 5a88efc7b..80379fdaa 100644
--- a/src/render/texture/qabstracttextureimage.h
+++ b/src/render/texture/qabstracttextureimage.h
@@ -100,6 +100,7 @@ protected:
 private:
     Q_DECLARE_PRIVATE(QAbstractTextureImage)
     friend class Render::TextureImage;
+    Qt3DCore::QNodeCreatedChangeBasePtr createNodeCreationChange() const Q_DECL_OVERRIDE;
 };
 
 } // namespace Qt3DRender
diff --git a/src/render/texture/qabstracttextureimage_p.h b/src/render/texture/qabstracttextureimage_p.h
index ac85be831..5630643d8 100644
--- a/src/render/texture/qabstracttextureimage_p.h
+++ b/src/render/texture/qabstracttextureimage_p.h
@@ -79,6 +79,14 @@ public:
     QAbstractTexture::CubeMapFace m_face;
 };
 
+struct QAbstractTextureImageData
+{
+    int mipLevel;
+    int layer;
+    QAbstractTexture::CubeMapFace face;
+    QTextureImageDataGeneratorPtr generator;
+};
+
 } // namespace Qt3DRender
 
 QT_END_NAMESPACE
diff --git a/src/render/texture/textureimage.cpp b/src/render/texture/textureimage.cpp
index 5db481fea..8fbcf2fb4 100644
--- a/src/render/texture/textureimage.cpp
+++ b/src/render/texture/textureimage.cpp
@@ -41,6 +41,7 @@
 #include <Qt3DCore/qscenepropertychange.h>
 #include <Qt3DRender/private/managers_p.h>
 #include <Qt3DRender/private/texturedatamanager_p.h>
+#include <Qt3DRender/private/qabstracttextureimage_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -97,6 +98,28 @@ void TextureImage::updateFromPeer(Qt3DCore::QNode *peer)
     }
 }
 
+void TextureImage::initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change)
+{
+    const auto typedChange = qSharedPointerCast<Qt3DCore::QNodeCreatedChange<QAbstractTextureImageData>>(change);
+    const auto &data = typedChange->data;
+    m_mipLevel = data.mipLevel;
+    m_layer = data.layer;
+    m_face = data.face;
+    m_generator = data.generator;
+
+    if (!change->parentId()) {
+        qWarning() << "No QAbstractTextureProvider parent found";
+    } else {
+        m_textureProviderId = change->parentId();
+        m_textureProvider = m_textureManager->lookupHandle(m_textureProviderId);
+        Texture *texture = m_textureManager->data(m_textureProvider);
+        Q_ASSERT(texture);
+        // Notify the Texture that it has a new TextureImage and needs an update
+        texture->addTextureImageData(m_textureImageManager->lookupHandle(peerId()));
+        texture->addToPendingTextureJobs();
+    }
+}
+
 void TextureImage::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e)
 {
     QScenePropertyChangePtr propertyChange = qSharedPointerCast<QScenePropertyChange>(e);
diff --git a/src/render/texture/textureimage_p.h b/src/render/texture/textureimage_p.h
index 9a26a25a4..99a7912de 100644
--- a/src/render/texture/textureimage_p.h
+++ b/src/render/texture/textureimage_p.h
@@ -101,6 +101,8 @@ public:
     inline QTextureImageDataGeneratorPtr dataGenerator() const { return m_generator; }
 
 private:
+    void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) Q_DECL_FINAL;
+
     void updateDNA();
 
     QTextureImageDataGeneratorPtr m_generator;