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      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 package android.media.cts;
     18 
     19 import android.media.MediaCodec;
     20 import android.util.Log;
     21 
     22 public class NdkInputSurface implements InputSurfaceInterface {
     23 
     24     private static final String TAG = NdkInputSurface.class.getName();
     25 
     26     private long mNativeWindow;
     27     private long mEGLDisplay;
     28     private long mEGLConfig;
     29     private long mEGLContext;
     30     private long mEGLSurface;
     31     private int mWidth, mHeight;
     32 
     33     static private native long eglGetDisplay();
     34     static private native long eglChooseConfig(long eglDisplay);
     35     static private native long eglCreateContext(long eglDisplay, long eglConfig);
     36     static private native long createEGLSurface(long eglDisplay, long eglConfig, long nativeWindow);
     37     static private native boolean eglMakeCurrent(long eglDisplay, long eglSurface, long eglContext);
     38     static private native boolean eglSwapBuffers(long eglDisplay, long eglSurface);
     39     static private native boolean eglPresentationTimeANDROID(long eglDisplay, long eglSurface, long nsecs);
     40     static private native int eglGetWidth(long eglDisplay, long eglSurface);
     41     static private native int eglGetHeight(long eglDisplay, long eglSurface);
     42     static private native boolean eglDestroySurface(long eglDisplay, long eglSurface);
     43     static private native void nativeRelease(long eglDisplay, long eglSurface, long eglContext, long nativeWindow);
     44 
     45     public NdkInputSurface(long nativeWindow) {
     46 
     47         mNativeWindow = nativeWindow;
     48 
     49         mEGLDisplay = eglGetDisplay();
     50         if (mEGLDisplay == 0) {
     51             throw new RuntimeException("unable to get EGL14 display");
     52         }
     53 
     54         mEGLConfig = eglChooseConfig(mEGLDisplay);
     55         if (mEGLConfig == 0) {
     56             throw new RuntimeException("unable to find RGB888+recordable ES2 EGL config");
     57         }
     58 
     59         mEGLContext = eglCreateContext(mEGLDisplay, mEGLConfig);
     60         if (mEGLContext == 0) {
     61             throw new RuntimeException("null context");
     62         }
     63 
     64         mEGLSurface = createEGLSurface(mEGLDisplay, mEGLConfig, mNativeWindow);
     65         if (mEGLSurface == 0) {
     66             throw new RuntimeException("surface was null");
     67         }
     68 
     69         mWidth = eglGetWidth(mEGLDisplay, mEGLSurface);
     70         mHeight = eglGetHeight(mEGLDisplay, mEGLSurface);
     71 
     72     }
     73 
     74     @Override
     75     public void makeCurrent() {
     76         if (!eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLContext)) {
     77             throw new RuntimeException("eglMakeCurrent failed");
     78         }
     79     }
     80 
     81     @Override
     82     public boolean swapBuffers() {
     83         return eglSwapBuffers(mEGLDisplay, mEGLSurface);
     84     }
     85 
     86     @Override
     87     public void setPresentationTime(long nsecs) {
     88         eglPresentationTimeANDROID(mEGLDisplay, mEGLSurface, nsecs);
     89     }
     90 
     91     @Override
     92     public void configure(MediaCodec codec) {
     93         throw new UnsupportedOperationException(codec.toString());
     94     }
     95 
     96     @Override
     97     public void configure(NdkMediaCodec codec) {
     98         codec.setInputSurface(mNativeWindow);
     99     }
    100 
    101     @Override
    102     public void updateSize(int width, int height) {
    103         if (width != mWidth || height != mHeight) {
    104             Log.d(TAG, "re-create EGLSurface");
    105             releaseEGLSurface();
    106             mEGLSurface = createEGLSurface(mEGLDisplay, mEGLConfig, mNativeWindow);
    107             mWidth = eglGetWidth(mEGLDisplay, mEGLSurface);
    108             mHeight = eglGetHeight(mEGLDisplay, mEGLSurface);
    109         }
    110     }
    111 
    112     private void releaseEGLSurface() {
    113         if (mEGLDisplay != 0) {
    114             eglDestroySurface(mEGLDisplay, mEGLSurface);
    115             mEGLSurface = 0;
    116         }
    117     }
    118 
    119     @Override
    120     public void release() {
    121 
    122         nativeRelease(mEGLDisplay, mEGLSurface, mEGLContext, mNativeWindow);
    123 
    124         mEGLDisplay = 0;
    125         mEGLContext = 0;
    126         mEGLSurface = 0;
    127         mNativeWindow = 0;
    128 
    129     }
    130 
    131 }
    132