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      1 /*
      2  * Copyright (C) 2013 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_HWUI_IMAGE_H
     18 #define ANDROID_HWUI_IMAGE_H
     19 
     20 #include <EGL/egl.h>
     21 #include <EGL/eglext.h>
     22 
     23 #include <GLES2/gl2.h>
     24 #include <GLES2/gl2ext.h>
     25 
     26 #include <ui/GraphicBuffer.h>
     27 
     28 namespace android {
     29 namespace uirenderer {
     30 
     31 /**
     32  * A simple wrapper that creates an EGLImage and a texture for a GraphicBuffer.
     33  */
     34 class Image {
     35 public:
     36     /**
     37      * Creates a new image from the specified graphic buffer. If the image
     38      * cannot be created, getTexture() will return 0 and getImage() will
     39      * return EGL_NO_IMAGE_KHR.
     40      */
     41     explicit Image(sp<GraphicBuffer> buffer);
     42     ~Image();
     43 
     44     /**
     45      * Returns the name of the GL texture that can be used to sample
     46      * from this image.
     47      */
     48     GLuint getTexture() const { return mTexture; }
     49 
     50     /**
     51      * Returns the name of the EGL image represented by this object.
     52      */
     53     EGLImageKHR getImage() const { return mImage; }
     54 
     55 private:
     56     GLuint mTexture;
     57     EGLImageKHR mImage;
     58 };  // class Image
     59 
     60 };  // namespace uirenderer
     61 };  // namespace android
     62 
     63 #endif  // ANDROID_HWUI_IMAGE_H
     64