Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROMaterialSubstrate.h

@@ -0,0 +1,81 @@
+//
+//  VROMaterialSubstrate.h
+//  ViroRenderer
+//
+//  Created by Raj Advani on 12/29/15.
+//  Copyright © 2015 Viro Media. All rights reserved.
+//
+
+#ifndef VROMaterialSubstrate_h
+#define VROMaterialSubstrate_h
+
+#include <stdio.h>
+#include <vector>
+#include <memory>
+
+class VROSortKey;
+class VROLight;
+class VRORenderContext;
+class VRODriver;
+class VROGeometry;
+class VROVector3f;
+class VROMatrix4f;
+enum class VROEyeType;
+
+class VROMaterialSubstrate {
+public:
+    virtual ~VROMaterialSubstrate() {}
+    
+    /*
+     Update the textures used by this substrate. Invoked when the material's
+     textures are updated, in lieu of regenerating the entire substrate.
+     */
+    virtual void updateTextures() = 0;
+    
+    /*
+     Update the given sort key with the properties in this material, if the
+     given lights are used.
+     */
+    virtual void updateSortKey(VROSortKey &key, const std::vector<std::shared_ptr<VROLight>> &lights,
+                               const VRORenderContext &context,
+                               std::shared_ptr<VRODriver> driver) = 0;
+    
+    /*
+     Bind the shader used in this material to the active rendering context.
+     This is kept independent of the bindProperties() function because shader changes
+     are expensive, so we want to manage them independent of materials in the
+     render loop.
+     
+     The shader used is a function both of the underlying material properties
+     and of the desired lighting configuration.
+     */
+    virtual void bindShader(int lightsHash,
+                            const std::vector<std::shared_ptr<VROLight>> &lights,
+                            const VRORenderContext &context,
+                            std::shared_ptr<VRODriver> &driver) = 0;
+    
+    /*
+     Bind the properties of this material to the active rendering context.
+     These properties should be node and geometry independent. The shader
+     should always be bound first (via bindShader()).
+     */
+    virtual void bindProperties() = 0;
+    
+    /*
+     Bind the properties of the given geometry to the active rendering context.
+     These are material properties (e.g. shader uniforms) that are dependent
+     on properties of the geometry.
+     */
+    virtual void bindGeometry(float opacity, const VROGeometry &geometry) = 0;
+    
+    /*
+     Bind the properties of the view and projection to the active rendering
+     context.
+     */
+    virtual void bindView(VROMatrix4f modelMatrix, VROMatrix4f viewMatrix,
+                          VROMatrix4f projectionMatrix, VROMatrix4f normalMatrix,
+                          VROVector3f cameraPosition, VROEyeType eyeType) = 0;
+    
+};
+
+#endif /* VROMaterialSubstrate_h */