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      1 /*
      2  * Copyright (C) 2011 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 ANDROID_LAYER_SCREENSHOT_H
     18 #define ANDROID_LAYER_SCREENSHOT_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <EGL/egl.h>
     24 #include <EGL/eglext.h>
     25 
     26 #include "LayerBase.h"
     27 
     28 // ---------------------------------------------------------------------------
     29 
     30 namespace android {
     31 
     32 class LayerScreenshot : public LayerBaseClient
     33 {
     34     GLuint mTextureName;
     35     GLfloat mTexCoords[8];
     36     sp<SurfaceFlinger> mFlinger;
     37     bool mIsSecure;
     38 public:
     39             LayerScreenshot(SurfaceFlinger* flinger, const sp<Client>& client);
     40         virtual ~LayerScreenshot();
     41 
     42         status_t capture();
     43 
     44     virtual void initStates(uint32_t w, uint32_t h, uint32_t flags);
     45     virtual uint32_t doTransaction(uint32_t flags);
     46     virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const;
     47     virtual bool isOpaque() const         { return false; }
     48     virtual bool isSecure() const         { return mIsSecure; }
     49     virtual bool isProtectedByApp() const { return false; }
     50     virtual bool isProtectedByDRM() const { return false; }
     51     virtual const char* getTypeId() const { return "LayerScreenshot"; }
     52 
     53 private:
     54     status_t captureLocked(int32_t layerStack);
     55     void initTexture(GLfloat u, GLfloat v);
     56 };
     57 
     58 // ---------------------------------------------------------------------------
     59 
     60 }; // namespace android
     61 
     62 #endif // ANDROID_LAYER_SCREENSHOT_H
     63