1 /*
2  * Copyright (C) 2016 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 #pragma once
18 
19 #include <stdint.h>
20 
21 struct SkRect;
22 typedef void *EGLSurface;
23 
24 namespace android {
25 namespace uirenderer {
26 namespace renderthread {
27 
28 class Frame {
29 public:
Frame(int32_t width,int32_t height,int32_t bufferAge)30     Frame(int32_t width, int32_t height, int32_t bufferAge)
31             : mWidth(width)
32             , mHeight(height)
33             , mBufferAge(bufferAge) { }
34 
width()35     int32_t width() const { return mWidth; }
height()36     int32_t height() const { return mHeight; }
37 
38     // See: https://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_buffer_age.txt
39     // for what this means
bufferAge()40     int32_t bufferAge() const { return mBufferAge; }
41 
42 private:
Frame()43     Frame() {}
44     friend class EglManager;
45 
46     int32_t mWidth;
47     int32_t mHeight;
48     int32_t mBufferAge;
49 
50     EGLSurface mSurface;
51 
52     // Maps from 0,0 in top-left to 0,0 in bottom-left
53     // If out is not an int32_t[4] you're going to have a bad time
54     void map(const SkRect& in, int32_t* out) const;
55 };
56 
57 } /* namespace renderthread */
58 } /* namespace uirenderer */
59 } /* namespace android */
60 
61