1 files changed, 44 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/glrenderer/Texture.java b/src/com/android/gallery3d/glrenderer/Texture.java
new file mode 100644
index 0000000..3dcae4a
--- /dev/null
+++ b/src/com/android/gallery3d/glrenderer/Texture.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+package com.android.gallery3d.glrenderer;
+
+
+// Texture is a rectangular image which can be drawn on GLCanvas.
+// The isOpaque() function gives a hint about whether the texture is opaque,
+// so the drawing can be done faster.
+//
+// This is the current texture hierarchy:
+//
+// Texture
+// -- ColorTexture
+// -- FadeInTexture
+// -- BasicTexture
+//    -- UploadedTexture
+//       -- BitmapTexture
+//       -- Tile
+//       -- ResourceTexture
+//          -- NinePatchTexture
+//       -- CanvasTexture
+//          -- StringTexture
+//
+public interface Texture {
+    public int getWidth();
+    public int getHeight();
+    public void draw(GLCanvas canvas, int x, int y);
+    public void draw(GLCanvas canvas, int x, int y, int w, int h);
+    public boolean isOpaque();
+}