1 /*
2  * Copyright (C) 2015 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 #ifndef RENDERSTATE_SCISSOR_H
17 #define RENDERSTATE_SCISSOR_H
18 
19 #include <GLES2/gl2.h>
20 #include <GLES2/gl2ext.h>
21 
22 namespace android {
23 namespace uirenderer {
24 
25 class Rect;
26 
27 class Scissor {
28     friend class RenderState;
29 
30 public:
31     bool setEnabled(bool enabled);
32     bool set(GLint x, GLint y, GLint width, GLint height);
33     void set(int viewportHeight, const Rect& clip);
34     void reset();
isEnabled()35     bool isEnabled() { return mEnabled; }
36     void dump();
37 
38 private:
39     Scissor();
40     void invalidate();
41     bool mEnabled;
42     GLint mScissorX;
43     GLint mScissorY;
44     GLint mScissorWidth;
45     GLint mScissorHeight;
46 };
47 
48 } /* namespace uirenderer */
49 } /* namespace android */
50 
51 #endif  // RENDERSTATE_SCISSOR_H
52