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Diffstat (limited to '')
| -rw-r--r-- | third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase10Impl.java | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase10Impl.java b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase10Impl.java new file mode 100644 index 0000000000..254a17c750 --- /dev/null +++ b/third_party/libwebrtc/sdk/android/src/java/org/webrtc/EglBase10Impl.java @@ -0,0 +1,365 @@ +/* + * 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.Canvas; +import android.graphics.Rect; +import android.graphics.SurfaceTexture; +import android.opengl.EGL14; +import android.opengl.GLException; +import android.view.Surface; +import android.view.SurfaceHolder; +import androidx.annotation.Nullable; +import javax.microedition.khronos.egl.EGL10; +import javax.microedition.khronos.egl.EGLConfig; +import javax.microedition.khronos.egl.EGLContext; +import javax.microedition.khronos.egl.EGLDisplay; +import javax.microedition.khronos.egl.EGLSurface; + +/** + * Holds EGL state and utility methods for handling an egl 1.0 EGLContext, an EGLDisplay, + * and an EGLSurface. + */ +class EglBase10Impl implements EglBase10 { + private static final String TAG = "EglBase10Impl"; + // This constant is taken from EGL14.EGL_CONTEXT_CLIENT_VERSION. + private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; + + private final EGL10 egl; + private EGLContext eglContext; + @Nullable private EGLConfig eglConfig; + private EGLDisplay eglDisplay; + private EGLSurface eglSurface = EGL10.EGL_NO_SURFACE; + + // EGL wrapper for an actual EGLContext. + private static class Context implements EglBase10.Context { + private final EGL10 egl; + private final EGLContext eglContext; + private final EGLConfig eglContextConfig; + + @Override + public EGLContext getRawContext() { + return eglContext; + } + + @Override + public long getNativeEglContext() { + EGLContext previousContext = egl.eglGetCurrentContext(); + EGLDisplay currentDisplay = egl.eglGetCurrentDisplay(); + EGLSurface previousDrawSurface = egl.eglGetCurrentSurface(EGL10.EGL_DRAW); + EGLSurface previousReadSurface = egl.eglGetCurrentSurface(EGL10.EGL_READ); + EGLSurface tempEglSurface = null; + + if (currentDisplay == EGL10.EGL_NO_DISPLAY) { + currentDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY); + } + + try { + if (previousContext != eglContext) { + int[] surfaceAttribs = {EGL10.EGL_WIDTH, 1, EGL10.EGL_HEIGHT, 1, EGL10.EGL_NONE}; + tempEglSurface = + egl.eglCreatePbufferSurface(currentDisplay, eglContextConfig, surfaceAttribs); + if (!egl.eglMakeCurrent(currentDisplay, tempEglSurface, tempEglSurface, eglContext)) { + throw new GLException(egl.eglGetError(), + "Failed to make temporary EGL surface active: " + egl.eglGetError()); + } + } + + return nativeGetCurrentNativeEGLContext(); + } finally { + if (tempEglSurface != null) { + egl.eglMakeCurrent( + currentDisplay, previousDrawSurface, previousReadSurface, previousContext); + egl.eglDestroySurface(currentDisplay, tempEglSurface); + } + } + } + + public Context(EGL10 egl, EGLContext eglContext, EGLConfig eglContextConfig) { + this.egl = egl; + this.eglContext = eglContext; + this.eglContextConfig = eglContextConfig; + } + } + + // Create a new context with the specified config type, sharing data with sharedContext. + public EglBase10Impl(EGLContext sharedContext, int[] configAttributes) { + this.egl = (EGL10) EGLContext.getEGL(); + eglDisplay = getEglDisplay(); + eglConfig = getEglConfig(egl, eglDisplay, configAttributes); + final int openGlesVersion = EglBase.getOpenGlesVersionFromConfig(configAttributes); + Logging.d(TAG, "Using OpenGL ES version " + openGlesVersion); + eglContext = createEglContext(sharedContext, eglDisplay, eglConfig, openGlesVersion); + } + + @Override + public void createSurface(Surface surface) { + /** + * We have to wrap Surface in a SurfaceHolder because for some reason eglCreateWindowSurface + * couldn't actually take a Surface object until API 17. Older versions fortunately just call + * SurfaceHolder.getSurface(), so we'll do that. No other methods are relevant. + */ + class FakeSurfaceHolder implements SurfaceHolder { + private final Surface surface; + + FakeSurfaceHolder(Surface surface) { + this.surface = surface; + } + + @Override + public void addCallback(Callback callback) {} + + @Override + public void removeCallback(Callback callback) {} + + @Override + public boolean isCreating() { + return false; + } + + @Deprecated + @Override + public void setType(int i) {} + + @Override + public void setFixedSize(int i, int i2) {} + + @Override + public void setSizeFromLayout() {} + + @Override + public void setFormat(int i) {} + + @Override + public void setKeepScreenOn(boolean b) {} + + @Nullable + @Override + public Canvas lockCanvas() { + return null; + } + + @Nullable + @Override + public Canvas lockCanvas(Rect rect) { + return null; + } + + @Override + public void unlockCanvasAndPost(Canvas canvas) {} + + @Nullable + @Override + public Rect getSurfaceFrame() { + return null; + } + + @Override + public Surface getSurface() { + return surface; + } + } + + createSurfaceInternal(new FakeSurfaceHolder(surface)); + } + + // Create EGLSurface from the Android SurfaceTexture. + @Override + public void createSurface(SurfaceTexture surfaceTexture) { + createSurfaceInternal(surfaceTexture); + } + + // Create EGLSurface from either a SurfaceHolder or a SurfaceTexture. + private void createSurfaceInternal(Object nativeWindow) { + if (!(nativeWindow instanceof SurfaceHolder) && !(nativeWindow instanceof SurfaceTexture)) { + throw new IllegalStateException("Input must be either a SurfaceHolder or SurfaceTexture"); + } + checkIsNotReleased(); + if (eglSurface != EGL10.EGL_NO_SURFACE) { + throw new RuntimeException("Already has an EGLSurface"); + } + int[] surfaceAttribs = {EGL10.EGL_NONE}; + eglSurface = egl.eglCreateWindowSurface(eglDisplay, eglConfig, nativeWindow, surfaceAttribs); + if (eglSurface == EGL10.EGL_NO_SURFACE) { + throw new GLException(egl.eglGetError(), + "Failed to create window surface: 0x" + Integer.toHexString(egl.eglGetError())); + } + } + + // Create dummy 1x1 pixel buffer surface so the context can be made current. + @Override + public void createDummyPbufferSurface() { + createPbufferSurface(1, 1); + } + + @Override + public void createPbufferSurface(int width, int height) { + checkIsNotReleased(); + if (eglSurface != EGL10.EGL_NO_SURFACE) { + throw new RuntimeException("Already has an EGLSurface"); + } + int[] surfaceAttribs = {EGL10.EGL_WIDTH, width, EGL10.EGL_HEIGHT, height, EGL10.EGL_NONE}; + eglSurface = egl.eglCreatePbufferSurface(eglDisplay, eglConfig, surfaceAttribs); + if (eglSurface == EGL10.EGL_NO_SURFACE) { + throw new GLException(egl.eglGetError(), + "Failed to create pixel buffer surface with size " + width + "x" + height + ": 0x" + + Integer.toHexString(egl.eglGetError())); + } + } + + @Override + public org.webrtc.EglBase.Context getEglBaseContext() { + return new Context(egl, eglContext, eglConfig); + } + + @Override + public boolean hasSurface() { + return eglSurface != EGL10.EGL_NO_SURFACE; + } + + @Override + public int surfaceWidth() { + final int widthArray[] = new int[1]; + egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_WIDTH, widthArray); + return widthArray[0]; + } + + @Override + public int surfaceHeight() { + final int heightArray[] = new int[1]; + egl.eglQuerySurface(eglDisplay, eglSurface, EGL10.EGL_HEIGHT, heightArray); + return heightArray[0]; + } + + @Override + public void releaseSurface() { + if (eglSurface != EGL10.EGL_NO_SURFACE) { + egl.eglDestroySurface(eglDisplay, eglSurface); + eglSurface = EGL10.EGL_NO_SURFACE; + } + } + + private void checkIsNotReleased() { + if (eglDisplay == EGL10.EGL_NO_DISPLAY || eglContext == EGL10.EGL_NO_CONTEXT + || eglConfig == null) { + throw new RuntimeException("This object has been released"); + } + } + + @Override + public void release() { + checkIsNotReleased(); + releaseSurface(); + detachCurrent(); + egl.eglDestroyContext(eglDisplay, eglContext); + egl.eglTerminate(eglDisplay); + eglContext = EGL10.EGL_NO_CONTEXT; + eglDisplay = EGL10.EGL_NO_DISPLAY; + eglConfig = null; + } + + @Override + public void makeCurrent() { + checkIsNotReleased(); + if (eglSurface == EGL10.EGL_NO_SURFACE) { + throw new RuntimeException("No EGLSurface - can't make current"); + } + synchronized (EglBase.lock) { + if (!egl.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) { + throw new GLException(egl.eglGetError(), + "eglMakeCurrent failed: 0x" + Integer.toHexString(egl.eglGetError())); + } + } + } + + // Detach the current EGL context, so that it can be made current on another thread. + @Override + public void detachCurrent() { + synchronized (EglBase.lock) { + if (!egl.eglMakeCurrent( + eglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT)) { + throw new GLException(egl.eglGetError(), + "eglDetachCurrent failed: 0x" + Integer.toHexString(egl.eglGetError())); + } + } + } + + @Override + public void swapBuffers() { + checkIsNotReleased(); + if (eglSurface == EGL10.EGL_NO_SURFACE) { + throw new RuntimeException("No EGLSurface - can't swap buffers"); + } + synchronized (EglBase.lock) { + egl.eglSwapBuffers(eglDisplay, eglSurface); + } + } + + @Override + public void swapBuffers(long timeStampNs) { + // Setting presentation time is not supported for EGL 1.0. + swapBuffers(); + } + + // Return an EGLDisplay, or die trying. + private EGLDisplay getEglDisplay() { + EGLDisplay eglDisplay = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY); + if (eglDisplay == EGL10.EGL_NO_DISPLAY) { + throw new GLException(egl.eglGetError(), + "Unable to get EGL10 display: 0x" + Integer.toHexString(egl.eglGetError())); + } + int[] version = new int[2]; + if (!egl.eglInitialize(eglDisplay, version)) { + throw new GLException(egl.eglGetError(), + "Unable to initialize EGL10: 0x" + Integer.toHexString(egl.eglGetError())); + } + return eglDisplay; + } + + // Return an EGLConfig, or die trying. + private static EGLConfig getEglConfig(EGL10 egl, EGLDisplay eglDisplay, int[] configAttributes) { + EGLConfig[] configs = new EGLConfig[1]; + int[] numConfigs = new int[1]; + if (!egl.eglChooseConfig(eglDisplay, configAttributes, configs, configs.length, numConfigs)) { + throw new GLException( + egl.eglGetError(), "eglChooseConfig failed: 0x" + Integer.toHexString(egl.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 EGLContext createEglContext(@Nullable EGLContext sharedContext, EGLDisplay eglDisplay, + EGLConfig eglConfig, int openGlesVersion) { + if (sharedContext != null && sharedContext == EGL10.EGL_NO_CONTEXT) { + throw new RuntimeException("Invalid sharedContext"); + } + int[] contextAttributes = {EGL_CONTEXT_CLIENT_VERSION, openGlesVersion, EGL10.EGL_NONE}; + EGLContext rootContext = sharedContext == null ? EGL10.EGL_NO_CONTEXT : sharedContext; + final EGLContext eglContext; + synchronized (EglBase.lock) { + eglContext = egl.eglCreateContext(eglDisplay, eglConfig, rootContext, contextAttributes); + } + if (eglContext == EGL10.EGL_NO_CONTEXT) { + throw new GLException(egl.eglGetError(), + "Failed to create EGL context: 0x" + Integer.toHexString(egl.eglGetError())); + } + return eglContext; + } + + private static native long nativeGetCurrentNativeEGLContext(); +} |