Add anisotropic filtering support to QSGTexture

This patch adds support to switch on anisotropic filtering on
QSGTexture and to QSGDefaultImageNode.
Not adding this support to QSGImageNode since it became public
in 5.8, and it does not allow additional virtual methods anymore.

Change-Id: Ibf1744845df2297f9129b1b5ce6a69d0a3b31c7c
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Reviewed-by: Gunnar Sletta <gunnar@crimson.no>

1 files changed, 5 insertions, 2 deletions

diff --git a/src/quick/scenegraph/util/qsgtexturematerial.h b/src/quick/scenegraph/util/qsgtexturematerial.h
index dc87131773..87d8e5fd49 100644
--- a/src/quick/scenegraph/util/qsgtexturematerial.h
+++ b/src/quick/scenegraph/util/qsgtexturematerial.h
@@ -69,6 +69,9 @@ public:
     void setVerticalWrapMode(QSGTexture::WrapMode mode) { m_vertical_wrap = mode; }
     QSGTexture::WrapMode verticalWrapMode() const { return QSGTexture::WrapMode(m_vertical_wrap); }
 
+    void setAnisotropyLevel(QSGTexture::AnisotropyLevel level) { m_anisotropy_level = level; }
+    QSGTexture::AnisotropyLevel anisotropyLevel() const { return QSGTexture::AnisotropyLevel(m_anisotropy_level); }
+
 protected:
     QSGTexture *m_texture;
 
@@ -76,8 +79,8 @@ protected:
     uint m_mipmap_filtering: 2;
     uint m_horizontal_wrap : 1;
     uint m_vertical_wrap: 1;
-
-    uint m_reserved : 26;
+    uint m_anisotropy_level : 3;
+    uint m_reserved : 23;
 };