diff options
Diffstat (limited to 'third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase14Impl.java')
| -rw-r--r-- | third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase14Impl.java | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase14Impl.java b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase14Impl.java new file mode 100644 index 0000000000..caf45b091e --- /dev/null +++ b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase14Impl.java @@ -0,0 +1,271 @@ +/* + * Copyright 2015 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +package org.webrtc; + +import android.graphics.SurfaceTexture; +import android.opengl.EGL14; +import android.opengl.EGLConfig; +import android.opengl.EGLContext; +import android.opengl.EGLDisplay; +import android.opengl.EGLExt; +import android.opengl.EGLSurface; +import android.opengl.GLException; +import android.os.Build; +import android.view.Surface; +import androidx.annotation.Nullable; + +/** + * Holds EGL state and utility methods for handling an EGL14 EGLContext, an EGLDisplay, + * and an EGLSurface. + */ +@SuppressWarnings("ReferenceEquality") // We want to compare to EGL14 constants. +class EglBase14Impl implements EglBase14 { + private static final String TAG = "EglBase14Impl"; + private EGLContext eglContext; + @Nullable private EGLConfig eglConfig; + private EGLDisplay eglDisplay; + private EGLSurface eglSurface = EGL14.EGL_NO_SURFACE; + + public static class Context implements EglBase14.Context { + private final EGLContext egl14Context; + + @Override + public EGLContext getRawContext() { + return egl14Context; + } + + @Override + public long getNativeEglContext() { + return egl14Context.getNativeHandle(); + } + + public Context(android.opengl.EGLContext eglContext) { + this.egl14Context = eglContext; + } + } + + // Create a new context with the specified config type, sharing data with sharedContext. + // `sharedContext` may be null. + public EglBase14Impl(EGLContext sharedContext, int[] configAttributes) { + eglDisplay = getEglDisplay(); + eglConfig = getEglConfig(eglDisplay, configAttributes); + final int openGlesVersion = EglBase.getOpenGlesVersionFromConfig(configAttributes); + Logging.d(TAG, "Using OpenGL ES version " + openGlesVersion); + eglContext = createEglContext(sharedContext, eglDisplay, eglConfig, openGlesVersion); + } + + // Create EGLSurface from the Android Surface. + @Override + public void createSurface(Surface surface) { + createSurfaceInternal(surface); + } + + // Create EGLSurface from the Android SurfaceTexture. + @Override + public void createSurface(SurfaceTexture surfaceTexture) { + createSurfaceInternal(surfaceTexture); + } + + // Create EGLSurface from either Surface or SurfaceTexture. + private void createSurfaceInternal(Object surface) { + if (!(surface instanceof Surface) && !(surface instanceof SurfaceTexture)) { + throw new IllegalStateException("Input must be either a Surface or SurfaceTexture"); + } + checkIsNotReleased(); + if (eglSurface != EGL14.EGL_NO_SURFACE) { + throw new RuntimeException("Already has an EGLSurface"); + } + int[] surfaceAttribs = {EGL14.EGL_NONE}; + eglSurface = EGL14.eglCreateWindowSurface(eglDisplay, eglConfig, surface, surfaceAttribs, 0); + if (eglSurface == EGL14.EGL_NO_SURFACE) { + throw new GLException(EGL14.eglGetError(), + "Failed to create window surface: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + } + + @Override + public void createDummyPbufferSurface() { + createPbufferSurface(1, 1); + } + + @Override + public void createPbufferSurface(int width, int height) { + checkIsNotReleased(); + if (eglSurface != EGL14.EGL_NO_SURFACE) { + throw new RuntimeException("Already has an EGLSurface"); + } + int[] surfaceAttribs = {EGL14.EGL_WIDTH, width, EGL14.EGL_HEIGHT, height, EGL14.EGL_NONE}; + eglSurface = EGL14.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs, 0); + if (eglSurface == EGL14.EGL_NO_SURFACE) { + throw new GLException(EGL14.eglGetError(), + "Failed to create pixel buffer surface with size " + width + "x" + height + ": 0x" + + Integer.toHexString(EGL14.eglGetError())); + } + } + + @Override + public Context getEglBaseContext() { + return new Context(eglContext); + } + + @Override + public boolean hasSurface() { + return eglSurface != EGL14.EGL_NO_SURFACE; + } + + @Override + public int surfaceWidth() { + final int widthArray[] = new int[1]; + EGL14.eglQuerySurface(eglDisplay, eglSurface, EGL14.EGL_WIDTH, widthArray, 0); + return widthArray[0]; + } + + @Override + public int surfaceHeight() { + final int heightArray[] = new int[1]; + EGL14.eglQuerySurface(eglDisplay, eglSurface, EGL14.EGL_HEIGHT, heightArray, 0); + return heightArray[0]; + } + + @Override + public void releaseSurface() { + if (eglSurface != EGL14.EGL_NO_SURFACE) { + EGL14.eglDestroySurface(eglDisplay, eglSurface); + eglSurface = EGL14.EGL_NO_SURFACE; + } + } + + private void checkIsNotReleased() { + if (eglDisplay == EGL14.EGL_NO_DISPLAY || eglContext == EGL14.EGL_NO_CONTEXT + || eglConfig == null) { + throw new RuntimeException("This object has been released"); + } + } + + @Override + public void release() { + checkIsNotReleased(); + releaseSurface(); + detachCurrent(); + synchronized (EglBase.lock) { + EGL14.eglDestroyContext(eglDisplay, eglContext); + } + EGL14.eglReleaseThread(); + EGL14.eglTerminate(eglDisplay); + eglContext = EGL14.EGL_NO_CONTEXT; + eglDisplay = EGL14.EGL_NO_DISPLAY; + eglConfig = null; + } + + @Override + public void makeCurrent() { + checkIsNotReleased(); + if (eglSurface == EGL14.EGL_NO_SURFACE) { + throw new RuntimeException("No EGLSurface - can't make current"); + } + synchronized (EglBase.lock) { + if (!EGL14.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) { + throw new GLException(EGL14.eglGetError(), + "eglMakeCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + } + } + + // Detach the current EGL context, so that it can be made current on another thread. + @Override + public void detachCurrent() { + synchronized (EglBase.lock) { + if (!EGL14.eglMakeCurrent( + eglDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT)) { + throw new GLException(EGL14.eglGetError(), + "eglDetachCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + } + } + + @Override + public void swapBuffers() { + checkIsNotReleased(); + if (eglSurface == EGL14.EGL_NO_SURFACE) { + throw new RuntimeException("No EGLSurface - can't swap buffers"); + } + synchronized (EglBase.lock) { + EGL14.eglSwapBuffers(eglDisplay, eglSurface); + } + } + + @Override + public void swapBuffers(long timeStampNs) { + checkIsNotReleased(); + if (eglSurface == EGL14.EGL_NO_SURFACE) { + throw new RuntimeException("No EGLSurface - can't swap buffers"); + } + synchronized (EglBase.lock) { + // See + // https://android.googlesource.com/platform/frameworks/native/+/tools_r22.2/opengl/specs/EGL_ANDROID_presentation_time.txt + EGLExt.eglPresentationTimeANDROID(eglDisplay, eglSurface, timeStampNs); + EGL14.eglSwapBuffers(eglDisplay, eglSurface); + } + } + + // Return an EGLDisplay, or die trying. + private static EGLDisplay getEglDisplay() { + EGLDisplay eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY); + if (eglDisplay == EGL14.EGL_NO_DISPLAY) { + throw new GLException(EGL14.eglGetError(), + "Unable to get EGL14 display: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + int[] version = new int[2]; + if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) { + throw new GLException(EGL14.eglGetError(), + "Unable to initialize EGL14: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + return eglDisplay; + } + + // Return an EGLConfig, or die trying. + private static EGLConfig getEglConfig(EGLDisplay eglDisplay, int[] configAttributes) { + EGLConfig[] configs = new EGLConfig[1]; + int[] numConfigs = new int[1]; + if (!EGL14.eglChooseConfig( + eglDisplay, configAttributes, 0, configs, 0, configs.length, numConfigs, 0)) { + throw new GLException(EGL14.eglGetError(), + "eglChooseConfig failed: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + if (numConfigs[0] <= 0) { + throw new RuntimeException("Unable to find any matching EGL config"); + } + final EGLConfig eglConfig = configs[0]; + if (eglConfig == null) { + throw new RuntimeException("eglChooseConfig returned null"); + } + return eglConfig; + } + + // Return an EGLConfig, or die trying. + private static EGLContext createEglContext(@Nullable EGLContext sharedContext, + EGLDisplay eglDisplay, EGLConfig eglConfig, int openGlesVersion) { + if (sharedContext != null && sharedContext == EGL14.EGL_NO_CONTEXT) { + throw new RuntimeException("Invalid sharedContext"); + } + int[] contextAttributes = {EGL14.EGL_CONTEXT_CLIENT_VERSION, openGlesVersion, EGL14.EGL_NONE}; + EGLContext rootContext = sharedContext == null ? EGL14.EGL_NO_CONTEXT : sharedContext; + final EGLContext eglContext; + synchronized (EglBase.lock) { + eglContext = EGL14.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes, 0); + } + if (eglContext == EGL14.EGL_NO_CONTEXT) { + throw new GLException(EGL14.eglGetError(), + "Failed to create EGL context: 0x" + Integer.toHexString(EGL14.eglGetError())); + } + return eglContext; + } +} |