1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.ide.eclipse.gltrace.state.transforms;
18 
19 import com.android.ide.eclipse.gltrace.state.IGLProperty;
20 
21 /**
22  * This interface encapsulates a single change to the GL state. GL Calls that affect
23  * multiple state variables would use a list of these state transformations.
24  */
25 public interface IStateTransform {
26     /** Apply this transformation on the given state. */
apply(IGLProperty currentState)27     void apply(IGLProperty currentState);
28 
29     /** Revert this transformation from the given state. */
revert(IGLProperty currentState)30     void revert(IGLProperty currentState);
31 
32     /** Obtain the property that will be affected by this transformation. */
getChangedProperty(IGLProperty currentState)33     IGLProperty getChangedProperty(IGLProperty currentState);
34 }
35