1 /*
2  * Copyright (C) 2017 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 #ifndef CAR_EVS_APP_RENDERDIRECTVIEW_H
18 #define CAR_EVS_APP_RENDERDIRECTVIEW_H
19 
20 #include "ConfigManager.h"
21 #include "RenderBase.h"
22 #include "VideoTex.h"
23 
24 #include <aidl/android/hardware/automotive/evs/BufferDesc.h>
25 #include <aidl/android/hardware/automotive/evs/CameraDesc.h>
26 #include <aidl/android/hardware/automotive/evs/IEvsEnumerator.h>
27 #include <math/mat2.h>
28 
29 /*
30  * Renders the view from a single specified camera directly to the full display.
31  */
32 class RenderDirectView final : public RenderBase {
33 public:
34     RenderDirectView(
35             std::shared_ptr<aidl::android::hardware::automotive::evs::IEvsEnumerator> enumerator,
36             const aidl::android::hardware::automotive::evs::CameraDesc& camDesc,
37             const ConfigManager& config);
38 
39     virtual bool activate() override;
40     virtual void deactivate() override;
41 
42     virtual bool drawFrame(const aidl::android::hardware::automotive::evs::BufferDesc& tgtBuffer);
43 
44 protected:
45     std::shared_ptr<aidl::android::hardware::automotive::evs::IEvsEnumerator> mEnumerator;
46     ConfigManager::CameraInfo mCameraInfo;
47     aidl::android::hardware::automotive::evs::CameraDesc mCameraDesc;
48     const ConfigManager& mConfig;
49 
50     std::unique_ptr<VideoTex> mTexture;
51 
52     GLuint mShaderProgram = 0;
53 
54     android::mat2 mRotationMat;
55 };
56 
57 #endif  // CAR_EVS_APP_RENDERDIRECTVIEW_H
58