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      1 /*
      2  * Copyright 2018 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 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
     18 
     19 #include "GLFramebuffer.h"
     20 
     21 #include <GLES/gl.h>
     22 #include <GLES/glext.h>
     23 #include <GLES2/gl2.h>
     24 #include <GLES2/gl2ext.h>
     25 #include <nativebase/nativebase.h>
     26 #include <utils/Trace.h>
     27 #include "GLESRenderEngine.h"
     28 
     29 namespace android {
     30 namespace renderengine {
     31 namespace gl {
     32 
     33 GLFramebuffer::GLFramebuffer(GLESRenderEngine& engine)
     34       : mEngine(engine), mEGLDisplay(engine.getEGLDisplay()), mEGLImage(EGL_NO_IMAGE_KHR) {
     35     glGenTextures(1, &mTextureName);
     36     glGenFramebuffers(1, &mFramebufferName);
     37 }
     38 
     39 GLFramebuffer::~GLFramebuffer() {
     40     glDeleteFramebuffers(1, &mFramebufferName);
     41     glDeleteTextures(1, &mTextureName);
     42 }
     43 
     44 bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected,
     45                                           const bool useFramebufferCache) {
     46     ATRACE_CALL();
     47     if (mEGLImage != EGL_NO_IMAGE_KHR) {
     48         if (!usingFramebufferCache) {
     49             eglDestroyImageKHR(mEGLDisplay, mEGLImage);
     50         }
     51         mEGLImage = EGL_NO_IMAGE_KHR;
     52         mBufferWidth = 0;
     53         mBufferHeight = 0;
     54     }
     55 
     56     if (nativeBuffer) {
     57         mEGLImage = mEngine.createFramebufferImageIfNeeded(nativeBuffer, isProtected,
     58                                                            useFramebufferCache);
     59         if (mEGLImage == EGL_NO_IMAGE_KHR) {
     60             return false;
     61         }
     62         usingFramebufferCache = useFramebufferCache;
     63         mBufferWidth = nativeBuffer->width;
     64         mBufferHeight = nativeBuffer->height;
     65     }
     66     return true;
     67 }
     68 
     69 } // namespace gl
     70 } // namespace renderengine
     71 } // namespace android
     72