Moved push constant bindings to reflection interface for viewports

kraken/KRViewport.cpp

@@ -57,6 +57,37 @@ KRViewport::KRViewport(const Vector2& size, const Matrix4& matView, const Matrix
 
 bool KRViewport::getShaderValue(ShaderValue value, void* buffer, size_t size) const
 {
+  if (size == sizeof(Matrix4)) {
+    switch (value) {
+      case ShaderValue::projection_matrix:
+      {
+        memcpy(buffer, &m_matProjection, sizeof(Matrix4));
+        return true;
+      }
+      case ShaderValue::invp:
+      {
+        memcpy(buffer, &m_matInverseProjection, sizeof(Matrix4));
+        return true;
+      }
+    }
+  }
+
+  if (size == sizeof(Vector4)) {
+    switch (value) {
+      case ShaderValue::viewport:
+      {
+        Vector4 viewport = Vector4::Create(
+          0.0f,
+          0.0f,
+          getSize().x,
+          getSize().y
+        );
+        memcpy(buffer, &viewport, sizeof(Vector4));
+        return true;
+      }
+    }
+  }
+
   return false;
 }