IStateTransform.java

/*
 * 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.ide.eclipse.gltrace.state.transforms;

import com.android.ide.eclipse.gltrace.state.IGLProperty;

/**
 * This interface encapsulates a single change to the GL state. GL Calls that affect
 * multiple state variables would use a list of these state transformations.
 */
public interface IStateTransform {
    /** Apply this transformation on the given state. */
    void apply(IGLProperty currentState);

    /** Revert this transformation from the given state. */
    void revert(IGLProperty currentState);

    /** Obtain the property that will be affected by this transformation. */
    IGLProperty getChangedProperty(IGLProperty currentState);
}