Android平台OpenGLES3将GL-TEXTURE-2D纹理id渲染到ImageReader提供的Surface上

package com.xiaxl.selector.demo.egl; import android.graphics.SurfaceTexture; import android.opengl.EGL14; import android.opengl.EGLConfig; import android.opengl.EGLContext; import android.opengl.EGLDisplay; import android.opengl.EGLSurface; import android.util.Log; import android.view.Surface; import android.view.SurfaceHolder; import android.view.SurfaceView; import com.xiaxl.selector.demo.egl.utils.EGLLog; /** * EGL 相关配置 * @author xiaxveliang@163.com * @since 2022/04/06 */ public class EGLDisplayHelper { private static final String TAG = EGLDisplayHelper.class.getSimpleName(); // private static final int EGL_RECORDABLE_ANDROID = 0x3142; // private EGLContext mEglContext = EGL14.EGL_NO_CONTEXT; private EGLDisplay mEglDisplay = EGL14.EGL_NO_DISPLAY; private EGLSurface mEglSurface = EGL14.EGL_NO_SURFACE; /** * 构造方法 * * @param inEglContext */ public EGLDisplayHelper(final EGLContext inEglContext, final Object inSurface) { init(inEglContext, inSurface); } /** * 初始化EGL * * @param inEglContext */ private void init(final EGLContext inEglContext, final Object inSurface) { if (!(inSurface instanceof SurfaceView) && !(inSurface instanceof Surface) && !(inSurface instanceof SurfaceHolder) && !(inSurface instanceof SurfaceTexture)) { throw new IllegalArgumentException("unsupported surface"); } //--------------------mEGLDisplay----------------------- // EGL Display if (mEglDisplay != EGL14.EGL_NO_DISPLAY) { throw new RuntimeException("EGL already set up"); } // mEglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY); if (mEglDisplay == EGL14.EGL_NO_DISPLAY) { throw new RuntimeException("unable to get EGL14 display"); } // 初始化 final int[] version = new int[2]; if (!EGL14.eglInitialize(mEglDisplay, version, 0, version, 1)) { mEglDisplay = null; throw new RuntimeException("eglInitialize failed"); } //--------------------mEglConfig----------------------- // Configure EGL for recording and OpenGL ES 2.0. int[] attribList = { EGL14.EGL_RED_SIZE, 8, EGL14.EGL_GREEN_SIZE, 8, EGL14.EGL_BLUE_SIZE, 8, EGL14.EGL_ALPHA_SIZE, 8, // EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT, // 录制android EGL_RECORDABLE_ANDROID, 1, EGL14.EGL_NONE }; EGLConfig[] configs = new EGLConfig[1]; int[] numConfigs = new int[1]; EGL14.eglChooseConfig(mEglDisplay, attribList, 0, configs, 0, configs.length, numConfigs, 0); if (configs[0] == null) { throw new RuntimeException("chooseConfig failed"); } //--------------------mEglContext----------------------- EGLContext shareEglContext = inEglContext; if (shareEglContext == null) { shareEglContext = EGL14.EGL_NO_CONTEXT; } // final int[] attrib_list = { EGL14.EGL_CONTEXT_CLIENT_VERSION, 2, EGL14.EGL_NONE }; // eglDisplay 即是之前创建的显示设备， // share_context 指定一个共享的EGL Context，共享后，2个EGLContext可以相互使用对方创建的 texture 等资源，默认情况下是不共享的 mEglContext = EGL14.eglCreateContext(mEglDisplay, configs[0], shareEglContext, attrib_list, 0); checkMyEGLError("eglCreateContext"); //-------------------------mEglSurface------------------------- // final int[] surfaceAttribs = { EGL14.EGL_NONE }; // try { EGLLog.d(TAG, "eglCreateWindowSurface.inSurface: " + inSurface); boolean surfaceFlag = (inSurface instanceof Surface); EGLLog.d(TAG, "eglCreateWindowSurface.inSurface instanceof Surface: " + surfaceFlag); mEglSurface = EGL14.eglCreateWindowSurface(mEglDisplay, configs[0], inSurface, surfaceAttribs, 0); } catch (final IllegalArgumentException e) { e.printStackTrace(); EGLLog.e(TAG,"eglCreateWindowSurface", e); } //----------------------------- makeEGLCurrentDisplay(); } /** * change context to draw this window surface * * @return */ private boolean makeEGLCurrentDisplay() { // if (mEglDisplay == null) { EGLLog.e(TAG, "mEglDisplay == null"); return false; } if (mEglSurface == null || mEglSurface == EGL14.EGL_NO_SURFACE) { final int error = EGL14.eglGetError(); if (error == EGL14.EGL_BAD_NATIVE_WINDOW) { EGLLog.e(TAG, "makeMyEGLCurrentSurface:returned EGL_BAD_NATIVE_WINDOW."); } return false; } // EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx if (!EGL14.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) { Log.w(TAG, "eglMakeCurrent:" + EGL14.eglGetError()); return false; } return true; } /** * 交换buffer数据 * * @return */ public int swapEGLBuffers() { // boolean result = EGL14.eglSwapBuffers(mEglDisplay, mEglSurface); // if (!result) { final int err = EGL14.eglGetError(); return err; } // return EGL14.EGL_SUCCESS; } public EGLContext getEglContext() { return mEglContext; } /** * 释放资源 */ public void release() { // -------mEglSurface---------- EGL14.eglMakeCurrent(mEglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT); EGL14.eglDestroySurface(mEglDisplay, mEglSurface); // -------mEglContext---------- EGL14.eglDestroyContext(mEglDisplay, mEglContext); EGL14.eglTerminate(mEglDisplay); EGL14.eglReleaseThread(); // mEglSurface = EGL14.EGL_NO_SURFACE; mEglDisplay = EGL14.EGL_NO_DISPLAY; mEglContext = EGL14.EGL_NO_CONTEXT; } /** * 查错 * * @param msg */ private void checkMyEGLError(final String msg) { int error; if ((error = EGL14.eglGetError()) != EGL14.EGL_SUCCESS) { throw new RuntimeException(msg + ": EGL error: 0x" + Integer.toHexString(error)); } } }