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diff --git a/libs/hwui/Glop.h b/libs/hwui/Glop.h
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+++ b/libs/hwui/Glop.h
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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HWUI_GLOP_H
+#define ANDROID_HWUI_GLOP_H
+
+#include "Matrix.h"
+#include "Rect.h"
+#include "utils/Macros.h"
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+namespace android {
+namespace uirenderer {
+
+/*
+ * Enumerates optional vertex attributes
+ *
+ * Position is always enabled by MeshState, these other attributes
+ * are enabled/disabled dynamically based on mesh content.
+ */
+enum VertexAttribFlags {
+    // NOTE: position attribute always enabled
+    kTextureCoord_Attrib = 1 << 0,
+    kColor_Attrib = 1 << 1,
+    kAlpha_Attrib = 1 << 2,
+};
+
+/**
+ * Structure containing all data required to issue a single OpenGL draw
+ *
+ * Includes all of the mesh, fill, and GL state required to perform
+ * the operation. Pieces of data are either directly copied into the
+ * structure, or stored as a pointer or GL object reference to data
+ * managed
+ */
+// TODO: PREVENT_COPY_AND_ASSIGN(...) or similar
+struct Glop {
+    Rect bounds;
+
+    struct Mesh {
+        VertexAttribFlags vertexFlags = static_cast<VertexAttribFlags>(0);
+        GLuint primitiveMode; // GL_TRIANGLES and GL_TRIANGLE_STRIP supported
+        GLuint vertexBufferObject = 0;
+        GLuint indexBufferObject = 0;
+        int vertexCount;
+        GLsizei stride;
+    } mesh;
+
+    struct Fill {
+        Program* program;
+        GLuint shaderId;
+        GLuint textureId;
+
+        struct Color {
+            float a, r, g, b;
+        } color;
+
+        /* TODO
+        union shader {
+            //...
+        }; TODO
+        union filter {
+            //color
+            //matrix + vector
+        };
+        */
+    } fill;
+
+    struct Transform {
+        Matrix4 ortho; // TODO: out of op, since this is static per FBO
+        Matrix4 modelView;
+        Matrix4 canvas;
+        bool offset;
+    } transform;
+
+    struct Blend {
+        static const SkXfermode::Mode kDisable =
+                static_cast<SkXfermode::Mode>(SkXfermode::kLastMode + 1);
+        SkXfermode::Mode mode;
+        bool swapSrcDst;
+    } blend;
+
+    /**
+     * Additional render state to enumerate:
+     * - scissor + (bits for whether each of LTRB needed?)
+     * - stencil mode (draw into, mask, count, etc)
+     */
+};
+
+} /* namespace uirenderer */
+} /* namespace android */
+
+#endif // ANDROID_HWUI_GLOP_H