mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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286 lines
9.8 KiB
Java
286 lines
9.8 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011-2012
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Patrick Walton <pcwalton@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko.gfx;
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import android.util.Log;
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import android.view.SurfaceHolder;
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import android.view.SurfaceView;
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import javax.microedition.khronos.egl.EGL10;
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import javax.microedition.khronos.egl.EGL11;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.egl.EGLContext;
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import javax.microedition.khronos.egl.EGLDisplay;
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import javax.microedition.khronos.egl.EGLSurface;
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import javax.microedition.khronos.opengles.GL;
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import javax.microedition.khronos.opengles.GL10;
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public class GLController {
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private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
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private static final String LOGTAG = "GeckoGLController";
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private FlexibleGLSurfaceView mView;
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private int mGLVersion;
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private boolean mSurfaceValid;
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private int mWidth, mHeight;
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private EGL10 mEGL;
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private EGLDisplay mEGLDisplay;
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private EGLConfig mEGLConfig;
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private EGLContext mEGLContext;
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private EGLSurface mEGLSurface;
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private GL mGL;
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private static final int LOCAL_EGL_OPENGL_ES2_BIT = 4;
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private static final int[] CONFIG_SPEC = {
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EGL10.EGL_RED_SIZE, 5,
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EGL10.EGL_GREEN_SIZE, 6,
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EGL10.EGL_BLUE_SIZE, 5,
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EGL10.EGL_SURFACE_TYPE, EGL10.EGL_WINDOW_BIT,
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EGL10.EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
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EGL10.EGL_NONE
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};
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public GLController(FlexibleGLSurfaceView view) {
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mView = view;
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mGLVersion = 2;
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mSurfaceValid = false;
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}
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public void setGLVersion(int version) {
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mGLVersion = version;
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}
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/** You must call this on the same thread you intend to use OpenGL on. */
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public void initGLContext() {
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initEGLContext();
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createEGLSurface();
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}
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public void disposeGLContext() {
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if (mEGL == null) {
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return;
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}
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if (!mEGL.eglMakeCurrent(mEGLDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE,
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EGL10.EGL_NO_CONTEXT)) {
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throw new GLControllerException("EGL context could not be released!");
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}
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if (mEGLSurface != null) {
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if (!mEGL.eglDestroySurface(mEGLDisplay, mEGLSurface)) {
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throw new GLControllerException("EGL surface could not be destroyed!");
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}
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mEGLSurface = null;
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}
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if (mEGLContext != null) {
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if (!mEGL.eglDestroyContext(mEGLDisplay, mEGLContext)) {
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throw new GLControllerException("EGL context could not be destroyed!");
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}
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mGL = null;
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mEGLContext = null;
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}
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}
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public GL getGL() { return mEGLContext.getGL(); }
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public EGLDisplay getEGLDisplay() { return mEGLDisplay; }
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public EGLConfig getEGLConfig() { return mEGLConfig; }
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public EGLContext getEGLContext() { return mEGLContext; }
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public EGLSurface getEGLSurface() { return mEGLSurface; }
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public FlexibleGLSurfaceView getView() { return mView; }
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public boolean hasSurface() {
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return mEGLSurface != null;
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}
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public boolean swapBuffers() {
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return mEGL.eglSwapBuffers(mEGLDisplay, mEGLSurface);
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}
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public boolean checkForLostContext() {
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if (mEGL.eglGetError() != EGL11.EGL_CONTEXT_LOST) {
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return false;
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}
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mEGLDisplay = null;
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mEGLConfig = null;
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mEGLContext = null;
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mEGLSurface = null;
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mGL = null;
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return true;
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}
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public synchronized void waitForValidSurface() {
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while (!mSurfaceValid) {
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try {
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wait();
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} catch (InterruptedException e) {
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throw new RuntimeException(e);
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}
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}
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}
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public synchronized int getWidth() {
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return mWidth;
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}
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public synchronized int getHeight() {
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return mHeight;
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}
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synchronized void surfaceCreated() {
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mSurfaceValid = true;
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notifyAll();
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}
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synchronized void surfaceDestroyed() {
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mSurfaceValid = false;
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notifyAll();
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}
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synchronized void sizeChanged(int newWidth, int newHeight) {
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mWidth = newWidth;
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mHeight = newHeight;
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}
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private void initEGL() {
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mEGL = (EGL10)EGLContext.getEGL();
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mEGLDisplay = mEGL.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
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if (mEGLDisplay == EGL10.EGL_NO_DISPLAY) {
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throw new GLControllerException("eglGetDisplay() failed");
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}
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int[] version = new int[2];
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if (!mEGL.eglInitialize(mEGLDisplay, version)) {
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throw new GLControllerException("eglInitialize() failed");
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}
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mEGLConfig = chooseConfig();
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}
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private void initEGLContext() {
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initEGL();
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int[] attribList = { EGL_CONTEXT_CLIENT_VERSION, mGLVersion, EGL10.EGL_NONE };
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mEGLContext = mEGL.eglCreateContext(mEGLDisplay, mEGLConfig, EGL10.EGL_NO_CONTEXT,
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attribList);
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if (mEGLContext == null || mEGLContext == EGL10.EGL_NO_CONTEXT) {
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throw new GLControllerException("createContext() failed");
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}
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}
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private EGLConfig chooseConfig() {
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int[] numConfigs = new int[1];
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if (!mEGL.eglChooseConfig(mEGLDisplay, CONFIG_SPEC, null, 0, numConfigs) ||
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numConfigs[0] <= 0) {
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throw new GLControllerException("No available EGL configurations");
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}
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EGLConfig[] configs = new EGLConfig[numConfigs[0]];
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if (!mEGL.eglChooseConfig(mEGLDisplay, CONFIG_SPEC, configs, numConfigs[0], numConfigs)) {
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throw new GLControllerException("No EGL configuration for that specification");
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}
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// Select the first 565 RGB configuration.
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int[] red = new int[1], green = new int[1], blue = new int[1];
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for (EGLConfig config : configs) {
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mEGL.eglGetConfigAttrib(mEGLDisplay, config, EGL10.EGL_RED_SIZE, red);
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mEGL.eglGetConfigAttrib(mEGLDisplay, config, EGL10.EGL_GREEN_SIZE, green);
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mEGL.eglGetConfigAttrib(mEGLDisplay, config, EGL10.EGL_BLUE_SIZE, blue);
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if (red[0] == 5 && green[0] == 6 && blue[0] == 5) {
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return config;
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}
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}
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throw new GLControllerException("No suitable EGL configuration found");
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}
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private void createEGLSurface() {
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SurfaceHolder surfaceHolder = mView.getHolder();
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mEGLSurface = mEGL.eglCreateWindowSurface(mEGLDisplay, mEGLConfig, surfaceHolder, null);
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if (mEGLSurface == null || mEGLSurface == EGL10.EGL_NO_SURFACE) {
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throw new GLControllerException("EGL window surface could not be created!");
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}
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if (!mEGL.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext)) {
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throw new GLControllerException("EGL surface could not be made into the current " +
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"surface!");
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}
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mGL = mEGLContext.getGL();
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if (mView.getRenderer() != null) {
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mView.getRenderer().onSurfaceCreated((GL10)mGL, mEGLConfig);
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mView.getRenderer().onSurfaceChanged((GL10)mGL, mView.getWidth(), mView.getHeight());
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}
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}
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/**
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* Provides an EGLSurface without assuming ownership of this surface.
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* This class does not keep a reference to the provided EGL surface; the
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* caller assumes ownership of the surface once it is returned.
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*/
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private EGLSurface provideEGLSurface() {
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if (mEGL == null) {
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initEGL();
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}
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SurfaceHolder surfaceHolder = mView.getHolder();
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EGLSurface surface = mEGL.eglCreateWindowSurface(mEGLDisplay, mEGLConfig, surfaceHolder, null);
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if (surface == null || surface == EGL10.EGL_NO_SURFACE) {
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throw new GLControllerException("EGL window surface could not be created!");
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}
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return surface;
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}
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public static class GLControllerException extends RuntimeException {
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public static final long serialVersionUID = 1L;
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GLControllerException(String e) {
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super(e);
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}
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}
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}
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