mirror of https://github.com/NekoX-Dev/NekoX.git
336 lines
12 KiB
Java
336 lines
12 KiB
Java
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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import android.annotation.TargetApi;
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import android.graphics.SurfaceTexture;
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import android.opengl.EGL14;
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import android.opengl.EGLConfig;
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import android.opengl.EGLContext;
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import android.opengl.EGLDisplay;
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import android.opengl.EGLExt;
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import android.opengl.EGLSurface;
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import android.os.Build;
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import androidx.annotation.Nullable;
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import android.view.Surface;
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import org.webrtc.EglBase;
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/**
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* Holds EGL state and utility methods for handling an EGL14 EGLContext, an EGLDisplay,
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* and an EGLSurface.
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*/
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@SuppressWarnings("ReferenceEquality") // We want to compare to EGL14 constants.
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@TargetApi(18)
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class EglBase14Impl implements EglBase14 {
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private static final String TAG = "EglBase14Impl";
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private static final int EGLExt_SDK_VERSION = Build.VERSION_CODES.JELLY_BEAN_MR2;
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private static final int CURRENT_SDK_VERSION = Build.VERSION.SDK_INT;
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private EGLContext eglContext;
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@Nullable private EGLConfig eglConfig;
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private EGLDisplay eglDisplay;
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private EGLSurface eglSurface = EGL14.EGL_NO_SURFACE;
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private EGLSurface eglSurfaceBackground = EGL14.EGL_NO_SURFACE;
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// EGL 1.4 is supported from API 17. But EGLExt that is used for setting presentation
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// time stamp on a surface is supported from 18 so we require 18.
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public static boolean isEGL14Supported() {
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Logging.d(TAG,
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"SDK version: " + CURRENT_SDK_VERSION
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+ ". isEGL14Supported: " + (CURRENT_SDK_VERSION >= EGLExt_SDK_VERSION));
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return (CURRENT_SDK_VERSION >= EGLExt_SDK_VERSION);
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}
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public static class Context implements EglBase14.Context {
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private final EGLContext egl14Context;
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@Override
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public EGLContext getRawContext() {
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return egl14Context;
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}
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@Override
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@SuppressWarnings("deprecation")
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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public long getNativeEglContext() {
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return CURRENT_SDK_VERSION >= Build.VERSION_CODES.LOLLIPOP ? egl14Context.getNativeHandle()
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: egl14Context.getHandle();
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}
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public Context(android.opengl.EGLContext eglContext) {
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this.egl14Context = eglContext;
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}
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}
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// Create a new context with the specified config type, sharing data with sharedContext.
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// |sharedContext| may be null.
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public EglBase14Impl(EGLContext sharedContext, int[] configAttributes) {
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eglDisplay = getEglDisplay();
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eglConfig = getEglConfig(eglDisplay, configAttributes);
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final int openGlesVersion = EglBase.getOpenGlesVersionFromConfig(configAttributes);
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Logging.d(TAG, "Using OpenGL ES version " + openGlesVersion);
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eglContext = createEglContext(sharedContext, eglDisplay, eglConfig, openGlesVersion);
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}
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// Create EGLSurface from the Android Surface.
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@Override
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public void createSurface(Surface surface) {
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createSurfaceInternal(surface, false);
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}
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// Create EGLSurface from the Android Surface.
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@Override
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public void createBackgroundSurface(SurfaceTexture surface) {
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createSurfaceInternal(surface, true);
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}
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// Create EGLSurface from the Android SurfaceTexture.
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@Override
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public void createSurface(SurfaceTexture surfaceTexture) {
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createSurfaceInternal(surfaceTexture, false);
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}
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// Create EGLSurface from either Surface or SurfaceTexture.
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private void createSurfaceInternal(Object surface, boolean background) {
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if (!(surface instanceof Surface) && !(surface instanceof SurfaceTexture)) {
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throw new IllegalStateException("Input must be either a Surface or SurfaceTexture");
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}
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checkIsNotReleased();
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if (background) {
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if (eglSurfaceBackground != EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("Already has an EGLSurface");
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}
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int[] surfaceAttribs = {EGL14.EGL_NONE};
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eglSurfaceBackground = EGL14.eglCreateWindowSurface(eglDisplay, eglConfig, surface, surfaceAttribs, 0);
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if (eglSurfaceBackground == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException(
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"Failed to create window surface: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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} else {
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if (eglSurface != EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("Already has an EGLSurface");
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}
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int[] surfaceAttribs = {EGL14.EGL_NONE};
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eglSurface = EGL14.eglCreateWindowSurface(eglDisplay, eglConfig, surface, surfaceAttribs, 0);
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if (eglSurface == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException(
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"Failed to create window surface: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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}
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}
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@Override
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public void createDummyPbufferSurface() {
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createPbufferSurface(1, 1);
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}
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@Override
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public void createPbufferSurface(int width, int height) {
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checkIsNotReleased();
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if (eglSurface != EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("Already has an EGLSurface");
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}
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int[] surfaceAttribs = {EGL14.EGL_WIDTH, width, EGL14.EGL_HEIGHT, height, EGL14.EGL_NONE};
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eglSurface = EGL14.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs, 0);
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if (eglSurface == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("Failed to create pixel buffer surface with size " + width + "x"
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+ height + ": 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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}
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@Override
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public Context getEglBaseContext() {
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return new Context(eglContext);
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}
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@Override
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public boolean hasSurface() {
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return eglSurface != EGL14.EGL_NO_SURFACE;
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}
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@Override
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public int surfaceWidth() {
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final int widthArray[] = new int[1];
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EGL14.eglQuerySurface(eglDisplay, eglSurface, EGL14.EGL_WIDTH, widthArray, 0);
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return widthArray[0];
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}
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@Override
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public int surfaceHeight() {
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final int heightArray[] = new int[1];
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EGL14.eglQuerySurface(eglDisplay, eglSurface, EGL14.EGL_HEIGHT, heightArray, 0);
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return heightArray[0];
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}
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@Override
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public void releaseSurface(boolean background) {
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if (background) {
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if (eglSurfaceBackground != EGL14.EGL_NO_SURFACE) {
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EGL14.eglDestroySurface(eglDisplay, eglSurfaceBackground);
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eglSurfaceBackground = EGL14.EGL_NO_SURFACE;
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}
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} else {
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if (eglSurface != EGL14.EGL_NO_SURFACE) {
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EGL14.eglDestroySurface(eglDisplay, eglSurface);
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eglSurface = EGL14.EGL_NO_SURFACE;
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}
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}
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}
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private void checkIsNotReleased() {
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if (eglDisplay == EGL14.EGL_NO_DISPLAY || eglContext == EGL14.EGL_NO_CONTEXT
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|| eglConfig == null) {
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throw new RuntimeException("This object has been released");
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}
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}
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@Override
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public void release() {
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checkIsNotReleased();
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releaseSurface(false);
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releaseSurface(true);
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detachCurrent();
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synchronized (EglBase.lock) {
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EGL14.eglDestroyContext(eglDisplay, eglContext);
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}
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EGL14.eglReleaseThread();
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EGL14.eglTerminate(eglDisplay);
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eglContext = EGL14.EGL_NO_CONTEXT;
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eglDisplay = EGL14.EGL_NO_DISPLAY;
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eglConfig = null;
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}
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@Override
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public void makeCurrent() {
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checkIsNotReleased();
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if (eglSurface == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("No EGLSurface - can't make current");
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}
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synchronized (EglBase.lock) {
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if (!EGL14.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
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throw new RuntimeException(
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"eglMakeCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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}
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}
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@Override
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public void makeBackgroundCurrent() {
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checkIsNotReleased();
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if (eglSurfaceBackground == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("No EGLSurface - can't make current");
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}
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synchronized (EglBase.lock) {
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if (!EGL14.eglMakeCurrent(eglDisplay, eglSurfaceBackground, eglSurfaceBackground, eglContext)) {
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throw new RuntimeException(
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"eglMakeCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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}
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}
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@Override
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public boolean hasBackgroundSurface() {
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return eglSurfaceBackground != EGL14.EGL_NO_SURFACE;
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}
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// Detach the current EGL context, so that it can be made current on another thread.
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@Override
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public void detachCurrent() {
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synchronized (EglBase.lock) {
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if (!EGL14.eglMakeCurrent(
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eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT)) {
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throw new RuntimeException(
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"eglDetachCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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}
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}
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@Override
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public void swapBuffers(boolean background) {
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checkIsNotReleased();
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EGLSurface surface = background ? eglSurfaceBackground : eglSurface;
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if (surface == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("No EGLSurface - can't swap buffers");
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}
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synchronized (EglBase.lock) {
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EGL14.eglSwapBuffers(eglDisplay, surface);
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}
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}
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@Override
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public void swapBuffers(long timeStampNs, boolean background) {
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checkIsNotReleased();
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EGLSurface surface = background ? eglSurfaceBackground : eglSurface;
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if (surface == EGL14.EGL_NO_SURFACE) {
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throw new RuntimeException("No EGLSurface - can't swap buffers");
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}
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synchronized (EglBase.lock) {
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// See
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// https://android.googlesource.com/platform/frameworks/native/+/tools_r22.2/opengl/specs/EGL_ANDROID_presentation_time.txt
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EGLExt.eglPresentationTimeANDROID(eglDisplay, surface, timeStampNs);
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EGL14.eglSwapBuffers(eglDisplay, surface);
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}
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}
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// Return an EGLDisplay, or die trying.
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private static EGLDisplay getEglDisplay() {
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EGLDisplay eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
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if (eglDisplay == EGL14.EGL_NO_DISPLAY) {
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throw new RuntimeException(
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"Unable to get EGL14 display: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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int[] version = new int[2];
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if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) {
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throw new RuntimeException(
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"Unable to initialize EGL14: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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return eglDisplay;
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}
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// Return an EGLConfig, or die trying.
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private static EGLConfig getEglConfig(EGLDisplay eglDisplay, int[] configAttributes) {
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EGLConfig[] configs = new EGLConfig[1];
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int[] numConfigs = new int[1];
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if (!EGL14.eglChooseConfig(
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eglDisplay, configAttributes, 0, configs, 0, configs.length, numConfigs, 0)) {
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throw new RuntimeException(
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"eglChooseConfig failed: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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if (numConfigs[0] <= 0) {
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throw new RuntimeException("Unable to find any matching EGL config");
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}
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final EGLConfig eglConfig = configs[0];
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if (eglConfig == null) {
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throw new RuntimeException("eglChooseConfig returned null");
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}
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return eglConfig;
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}
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// Return an EGLConfig, or die trying.
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private static EGLContext createEglContext(@Nullable EGLContext sharedContext,
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EGLDisplay eglDisplay, EGLConfig eglConfig, int openGlesVersion) {
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if (sharedContext != null && sharedContext == EGL14.EGL_NO_CONTEXT) {
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throw new RuntimeException("Invalid sharedContext");
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}
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int[] contextAttributes = {EGL14.EGL_CONTEXT_CLIENT_VERSION, openGlesVersion, EGL14.EGL_NONE};
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EGLContext rootContext = sharedContext == null ? EGL14.EGL_NO_CONTEXT : sharedContext;
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final EGLContext eglContext;
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synchronized (EglBase.lock) {
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eglContext = EGL14.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes, 0);
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}
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if (eglContext == EGL14.EGL_NO_CONTEXT) {
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throw new RuntimeException(
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"Failed to create EGL context: 0x" + Integer.toHexString(EGL14.eglGetError()));
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}
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return eglContext;
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}
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}
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