diff options
Diffstat (limited to 'src/com/android/gallery3d/glrenderer/ExtTexture.java')
-rw-r--r-- | src/com/android/gallery3d/glrenderer/ExtTexture.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/glrenderer/ExtTexture.java b/src/com/android/gallery3d/glrenderer/ExtTexture.java new file mode 100644 index 000000000..af76300b1 --- /dev/null +++ b/src/com/android/gallery3d/glrenderer/ExtTexture.java @@ -0,0 +1,60 @@ +/* + * Copyright (C) 2012 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; + +// ExtTexture is a texture whose content comes from a external texture. +// Before drawing, setSize() should be called. +public class ExtTexture extends BasicTexture { + + private int mTarget; + + public ExtTexture(GLCanvas canvas, int target) { + GLId glId = canvas.getGLId(); + mId = glId.generateTexture(); + mTarget = target; + } + + private void uploadToCanvas(GLCanvas canvas) { + canvas.setTextureParameters(this); + setAssociatedCanvas(canvas); + mState = STATE_LOADED; + } + + @Override + protected boolean onBind(GLCanvas canvas) { + if (!isLoaded()) { + uploadToCanvas(canvas); + } + + return true; + } + + @Override + public int getTarget() { + return mTarget; + } + + @Override + public boolean isOpaque() { + return true; + } + + @Override + public void yield() { + // we cannot free the texture because we have no backup. + } +} |