Add mipmapping support to QSGImageNode

This patch adds two virtual methods to QSGImageNode to set/get the
filtering mode for mipmapping, which makes it also possible to enable
it, which was previously not possible

Change-Id: Ie08a11aab35d8ba335841ca0eb73ef4b3d184d7e
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

2 files changed, 17 insertions, 0 deletions

diff --git a/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes.cpp b/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes.cpp
index de9869aee8..783caa280f 100644
--- a/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes.cpp
+++ b/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes.cpp
@@ -118,6 +118,20 @@ QSGTexture::Filtering QSGD3D12ImageNode::filtering() const
     return m_material.filtering();
 }
 
+void QSGD3D12ImageNode::setMipmapFiltering(QSGTexture::Filtering filtering)
+{
+    if (m_material.mipmapFiltering() == filtering)
+        return;
+
+    m_material.setMipmapFiltering(filtering);
+    markDirty(DirtyMaterial);
+}
+
+QSGTexture::Filtering QSGD3D12ImageNode::mipmapFiltering() const
+{
+    return m_material.mipmapFiltering();
+}
+
 void QSGD3D12ImageNode::setRect(const QRectF &r)
 {
     if (m_rect == r)
diff --git a/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes_p.h b/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes_p.h
index 14e34bc0ac..6150083aaf 100644
--- a/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes_p.h
+++ b/src/plugins/scenegraph/d3d12/qsgd3d12publicnodes_p.h
@@ -92,6 +92,9 @@ public:
     void setFiltering(QSGTexture::Filtering filtering) override;
     QSGTexture::Filtering filtering() const override;
 
+    void setMipmapFiltering(QSGTexture::Filtering filtering) override;
+    QSGTexture::Filtering mipmapFiltering() const override;
+
     void setTextureCoordinatesTransform(TextureCoordinatesTransformMode mode) override;
     TextureCoordinatesTransformMode textureCoordinatesTransform() const override;