| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| package android.view; |
| |
| import android.content.ComponentCallbacks2; |
| import android.graphics.Paint; |
| import android.graphics.Rect; |
| import android.graphics.SurfaceTexture; |
| import android.opengl.GLUtils; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.util.Log; |
| |
| import javax.microedition.khronos.egl.EGL10; |
| import javax.microedition.khronos.egl.EGL11; |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.egl.EGLContext; |
| import javax.microedition.khronos.egl.EGLDisplay; |
| import javax.microedition.khronos.egl.EGLSurface; |
| import javax.microedition.khronos.opengles.GL; |
| |
| import static javax.microedition.khronos.egl.EGL10.*; |
| |
| /** |
| * Interface for rendering a ViewAncestor using hardware acceleration. |
| * |
| * @hide |
| */ |
| public abstract class HardwareRenderer { |
| static final String LOG_TAG = "HardwareRenderer"; |
| |
| /** |
| * Turn on to only refresh the parts of the screen that need updating. |
| * When turned on the property defined by {@link #RENDER_DIRTY_REGIONS_PROPERTY} |
| * must also have the value "true". |
| */ |
| public static final boolean RENDER_DIRTY_REGIONS = true; |
| |
| /** |
| * System property used to enable or disable dirty regions invalidation. |
| * This property is only queried if {@link #RENDER_DIRTY_REGIONS} is true. |
| * The default value of this property is assumed to be true. |
| * |
| * Possible values: |
| * "true", to enable partial invalidates |
| * "false", to disable partial invalidates |
| */ |
| static final String RENDER_DIRTY_REGIONS_PROPERTY = "hwui.render_dirty_regions"; |
| |
| /** |
| * System property used to enable or disable vsync. |
| * The default value of this property is assumed to be false. |
| * |
| * Possible values: |
| * "true", to disable vsync |
| * "false", to enable vsync |
| */ |
| static final String DISABLE_VSYNC_PROPERTY = "hwui.disable_vsync"; |
| |
| /** |
| * System property used to debug EGL configuration choice. |
| * |
| * Possible values: |
| * "choice", print the chosen configuration only |
| * "all", print all possible configurations |
| */ |
| static final String PRINT_CONFIG_PROPERTY = "hwui.print_config"; |
| |
| /** |
| * Turn on to draw dirty regions every other frame. |
| */ |
| private static final boolean DEBUG_DIRTY_REGION = false; |
| |
| /** |
| * A process can set this flag to false to prevent the use of hardware |
| * rendering. |
| * |
| * @hide |
| */ |
| public static boolean sRendererDisabled = false; |
| |
| /** |
| * Further hardware renderer disabling for the system process. |
| * |
| * @hide |
| */ |
| public static boolean sSystemRendererDisabled = false; |
| |
| private boolean mEnabled; |
| private boolean mRequested = true; |
| |
| /** |
| * Invoke this method to disable hardware rendering in the current process. |
| * |
| * @hide |
| */ |
| public static void disable(boolean system) { |
| sRendererDisabled = true; |
| if (system) { |
| sSystemRendererDisabled = true; |
| } |
| } |
| |
| /** |
| * Indicates whether hardware acceleration is available under any form for |
| * the view hierarchy. |
| * |
| * @return True if the view hierarchy can potentially be hardware accelerated, |
| * false otherwise |
| */ |
| public static boolean isAvailable() { |
| return GLES20Canvas.isAvailable(); |
| } |
| |
| /** |
| * Destroys the hardware rendering context. |
| * |
| * @param full If true, destroys all associated resources. |
| */ |
| abstract void destroy(boolean full); |
| |
| /** |
| * Initializes the hardware renderer for the specified surface. |
| * |
| * @param holder The holder for the surface to hardware accelerate. |
| * |
| * @return True if the initialization was successful, false otherwise. |
| */ |
| abstract boolean initialize(SurfaceHolder holder) throws Surface.OutOfResourcesException; |
| |
| /** |
| * Updates the hardware renderer for the specified surface. |
| * |
| * @param holder The holder for the surface to hardware accelerate |
| */ |
| abstract void updateSurface(SurfaceHolder holder) throws Surface.OutOfResourcesException; |
| |
| /** |
| * Destoys the layers used by the specified view hierarchy. |
| * |
| * @param view The root of the view hierarchy |
| */ |
| abstract void destroyLayers(View view); |
| |
| /** |
| * This method should be invoked whenever the current hardware renderer |
| * context should be reset. |
| * |
| * @param holder The holder for the surface to hardware accelerate |
| */ |
| abstract void invalidate(SurfaceHolder holder); |
| |
| /** |
| * This method should be invoked to ensure the hardware renderer is in |
| * valid state (for instance, to ensure the correct EGL context is bound |
| * to the current thread.) |
| * |
| * @return true if the renderer is now valid, false otherwise |
| */ |
| abstract boolean validate(); |
| |
| /** |
| * Setup the hardware renderer for drawing. This is called whenever the |
| * size of the target surface changes or when the surface is first created. |
| * |
| * @param width Width of the drawing surface. |
| * @param height Height of the drawing surface. |
| */ |
| abstract void setup(int width, int height); |
| |
| /** |
| * Gets the current width of the surface. This is the width that the surface |
| * was last set to in a call to {@link #setup(int, int)}. |
| * |
| * @return the current width of the surface |
| */ |
| abstract int getWidth(); |
| |
| /** |
| * Gets the current height of the surface. This is the height that the surface |
| * was last set to in a call to {@link #setup(int, int)}. |
| * |
| * @return the current width of the surface |
| */ |
| abstract int getHeight(); |
| |
| /** |
| * Interface used to receive callbacks whenever a view is drawn by |
| * a hardware renderer instance. |
| */ |
| interface HardwareDrawCallbacks { |
| /** |
| * Invoked before a view is drawn by a hardware renderer. |
| * |
| * @param canvas The Canvas used to render the view. |
| */ |
| void onHardwarePreDraw(HardwareCanvas canvas); |
| |
| /** |
| * Invoked after a view is drawn by a hardware renderer. |
| * |
| * @param canvas The Canvas used to render the view. |
| */ |
| void onHardwarePostDraw(HardwareCanvas canvas); |
| } |
| |
| /** |
| * Draws the specified view. |
| * |
| * @param view The view to draw. |
| * @param attachInfo AttachInfo tied to the specified view. |
| * @param callbacks Callbacks invoked when drawing happens. |
| * @param dirty The dirty rectangle to update, can be null. |
| * |
| * @return true if the dirty rect was ignored, false otherwise |
| */ |
| abstract boolean draw(View view, View.AttachInfo attachInfo, HardwareDrawCallbacks callbacks, |
| Rect dirty); |
| |
| /** |
| * Creates a new display list that can be used to record batches of |
| * drawing operations. |
| * |
| * @return A new display list. |
| */ |
| abstract DisplayList createDisplayList(); |
| |
| /** |
| * Creates a new hardware layer. A hardware layer built by calling this |
| * method will be treated as a texture layer, instead of as a render target. |
| * |
| * @param isOpaque Whether the layer should be opaque or not |
| * |
| * @return A hardware layer |
| */ |
| abstract HardwareLayer createHardwareLayer(boolean isOpaque); |
| |
| /** |
| * Creates a new hardware layer. |
| * |
| * @param width The minimum width of the layer |
| * @param height The minimum height of the layer |
| * @param isOpaque Whether the layer should be opaque or not |
| * |
| * @return A hardware layer |
| */ |
| abstract HardwareLayer createHardwareLayer(int width, int height, boolean isOpaque); |
| |
| /** |
| * Creates a new {@link SurfaceTexture} that can be used to render into the |
| * specified hardware layer. |
| * |
| * |
| * @param layer The layer to render into using a {@link android.graphics.SurfaceTexture} |
| * |
| * @return A {@link SurfaceTexture} |
| */ |
| abstract SurfaceTexture createSurfaceTexture(HardwareLayer layer); |
| |
| /** |
| * Initializes the hardware renderer for the specified surface and setup the |
| * renderer for drawing, if needed. This is invoked when the ViewAncestor has |
| * potentially lost the hardware renderer. The hardware renderer should be |
| * reinitialized and setup when the render {@link #isRequested()} and |
| * {@link #isEnabled()}. |
| * |
| * @param width The width of the drawing surface. |
| * @param height The height of the drawing surface. |
| * @param attachInfo The |
| * @param holder |
| */ |
| void initializeIfNeeded(int width, int height, View.AttachInfo attachInfo, |
| SurfaceHolder holder) throws Surface.OutOfResourcesException { |
| if (isRequested()) { |
| // We lost the gl context, so recreate it. |
| if (!isEnabled()) { |
| if (initialize(holder)) { |
| setup(width, height); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Creates a hardware renderer using OpenGL. |
| * |
| * @param glVersion The version of OpenGL to use (1 for OpenGL 1, 11 for OpenGL 1.1, etc.) |
| * @param translucent True if the surface is translucent, false otherwise |
| * |
| * @return A hardware renderer backed by OpenGL. |
| */ |
| static HardwareRenderer createGlRenderer(int glVersion, boolean translucent) { |
| switch (glVersion) { |
| case 2: |
| return Gl20Renderer.create(translucent); |
| } |
| throw new IllegalArgumentException("Unknown GL version: " + glVersion); |
| } |
| |
| /** |
| * Invoke this method when the system is running out of memory. This |
| * method will attempt to recover as much memory as possible, based on |
| * the specified hint. |
| * |
| * @param level Hint about the amount of memory that should be trimmed, |
| * see {@link android.content.ComponentCallbacks} |
| */ |
| static void trimMemory(int level) { |
| Gl20Renderer.trimMemory(level); |
| } |
| |
| /** |
| * Indicates whether hardware acceleration is currently enabled. |
| * |
| * @return True if hardware acceleration is in use, false otherwise. |
| */ |
| boolean isEnabled() { |
| return mEnabled; |
| } |
| |
| /** |
| * Indicates whether hardware acceleration is currently enabled. |
| * |
| * @param enabled True if the hardware renderer is in use, false otherwise. |
| */ |
| void setEnabled(boolean enabled) { |
| mEnabled = enabled; |
| } |
| |
| /** |
| * Indicates whether hardware acceleration is currently request but not |
| * necessarily enabled yet. |
| * |
| * @return True if requested, false otherwise. |
| */ |
| boolean isRequested() { |
| return mRequested; |
| } |
| |
| /** |
| * Indicates whether hardware acceleration is currently requested but not |
| * necessarily enabled yet. |
| * |
| * @return True to request hardware acceleration, false otherwise. |
| */ |
| void setRequested(boolean requested) { |
| mRequested = requested; |
| } |
| |
| @SuppressWarnings({"deprecation"}) |
| static abstract class GlRenderer extends HardwareRenderer { |
| // These values are not exposed in our EGL APIs |
| static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; |
| static final int EGL_OPENGL_ES2_BIT = 4; |
| static final int EGL_SURFACE_TYPE = 0x3033; |
| static final int EGL_SWAP_BEHAVIOR_PRESERVED_BIT = 0x0400; |
| |
| static final int SURFACE_STATE_ERROR = 0; |
| static final int SURFACE_STATE_SUCCESS = 1; |
| static final int SURFACE_STATE_UPDATED = 2; |
| |
| static EGL10 sEgl; |
| static EGLDisplay sEglDisplay; |
| static EGLConfig sEglConfig; |
| static final Object[] sEglLock = new Object[0]; |
| int mWidth = -1, mHeight = -1; |
| |
| static final ThreadLocal<EGLContext> sEglContextStorage = new ThreadLocal<EGLContext>(); |
| |
| EGLContext mEglContext; |
| Thread mEglThread; |
| |
| EGLSurface mEglSurface; |
| |
| GL mGl; |
| HardwareCanvas mCanvas; |
| int mFrameCount; |
| Paint mDebugPaint; |
| |
| static boolean sDirtyRegions; |
| static final boolean sDirtyRegionsRequested; |
| static { |
| String dirtyProperty = SystemProperties.get(RENDER_DIRTY_REGIONS_PROPERTY, "true"); |
| //noinspection PointlessBooleanExpression,ConstantConditions |
| sDirtyRegions = RENDER_DIRTY_REGIONS && "true".equalsIgnoreCase(dirtyProperty); |
| sDirtyRegionsRequested = sDirtyRegions; |
| } |
| |
| boolean mDirtyRegionsEnabled; |
| final boolean mVsyncDisabled; |
| |
| final int mGlVersion; |
| final boolean mTranslucent; |
| |
| private boolean mDestroyed; |
| |
| private final Rect mRedrawClip = new Rect(); |
| |
| GlRenderer(int glVersion, boolean translucent) { |
| mGlVersion = glVersion; |
| mTranslucent = translucent; |
| |
| final String vsyncProperty = SystemProperties.get(DISABLE_VSYNC_PROPERTY, "false"); |
| mVsyncDisabled = "true".equalsIgnoreCase(vsyncProperty); |
| if (mVsyncDisabled) { |
| Log.d(LOG_TAG, "Disabling v-sync"); |
| } |
| } |
| |
| /** |
| * Indicates whether this renderer instance can track and update dirty regions. |
| */ |
| boolean hasDirtyRegions() { |
| return mDirtyRegionsEnabled; |
| } |
| |
| /** |
| * Checks for OpenGL errors. If an error has occured, {@link #destroy(boolean)} |
| * is invoked and the requested flag is turned off. The error code is |
| * also logged as a warning. |
| */ |
| void checkEglErrors() { |
| if (isEnabled()) { |
| int error = sEgl.eglGetError(); |
| if (error != EGL_SUCCESS) { |
| // something bad has happened revert to |
| // normal rendering. |
| Log.w(LOG_TAG, "EGL error: " + GLUtils.getEGLErrorString(error)); |
| fallback(error != EGL11.EGL_CONTEXT_LOST); |
| } |
| } |
| } |
| |
| private void fallback(boolean fallback) { |
| destroy(true); |
| if (fallback) { |
| // we'll try again if it was context lost |
| setRequested(false); |
| Log.w(LOG_TAG, "Mountain View, we've had a problem here. " |
| + "Switching back to software rendering."); |
| } |
| } |
| |
| @Override |
| boolean initialize(SurfaceHolder holder) throws Surface.OutOfResourcesException { |
| if (isRequested() && !isEnabled()) { |
| initializeEgl(); |
| mGl = createEglSurface(holder); |
| mDestroyed = false; |
| |
| if (mGl != null) { |
| int err = sEgl.eglGetError(); |
| if (err != EGL_SUCCESS) { |
| destroy(true); |
| setRequested(false); |
| } else { |
| if (mCanvas == null) { |
| mCanvas = createCanvas(); |
| } |
| if (mCanvas != null) { |
| setEnabled(true); |
| } else { |
| Log.w(LOG_TAG, "Hardware accelerated Canvas could not be created"); |
| } |
| } |
| |
| return mCanvas != null; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| void updateSurface(SurfaceHolder holder) throws Surface.OutOfResourcesException { |
| if (isRequested() && isEnabled()) { |
| createEglSurface(holder); |
| } |
| } |
| |
| abstract GLES20Canvas createCanvas(); |
| |
| abstract int[] getConfig(boolean dirtyRegions); |
| |
| void initializeEgl() { |
| synchronized (sEglLock) { |
| if (sEgl == null && sEglConfig == null) { |
| sEgl = (EGL10) EGLContext.getEGL(); |
| |
| // Get to the default display. |
| sEglDisplay = sEgl.eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| |
| if (sEglDisplay == EGL_NO_DISPLAY) { |
| throw new RuntimeException("eglGetDisplay failed " |
| + GLUtils.getEGLErrorString(sEgl.eglGetError())); |
| } |
| |
| // We can now initialize EGL for that display |
| int[] version = new int[2]; |
| if (!sEgl.eglInitialize(sEglDisplay, version)) { |
| throw new RuntimeException("eglInitialize failed " + |
| GLUtils.getEGLErrorString(sEgl.eglGetError())); |
| } |
| |
| sEglConfig = chooseEglConfig(); |
| if (sEglConfig == null) { |
| // We tried to use EGL_SWAP_BEHAVIOR_PRESERVED_BIT, try again without |
| if (sDirtyRegions) { |
| sDirtyRegions = false; |
| sEglConfig = chooseEglConfig(); |
| if (sEglConfig == null) { |
| throw new RuntimeException("eglConfig not initialized"); |
| } |
| } else { |
| throw new RuntimeException("eglConfig not initialized"); |
| } |
| } |
| } |
| } |
| |
| mEglContext = sEglContextStorage.get(); |
| mEglThread = Thread.currentThread(); |
| |
| if (mEglContext == null) { |
| mEglContext = createContext(sEgl, sEglDisplay, sEglConfig); |
| sEglContextStorage.set(mEglContext); |
| } |
| } |
| |
| private EGLConfig chooseEglConfig() { |
| EGLConfig[] configs = new EGLConfig[1]; |
| int[] configsCount = new int[1]; |
| int[] configSpec = getConfig(sDirtyRegions); |
| |
| // Debug |
| final String debug = SystemProperties.get(PRINT_CONFIG_PROPERTY, ""); |
| if ("all".equalsIgnoreCase(debug)) { |
| sEgl.eglChooseConfig(sEglDisplay, configSpec, null, 0, configsCount); |
| |
| EGLConfig[] debugConfigs = new EGLConfig[configsCount[0]]; |
| sEgl.eglChooseConfig(sEglDisplay, configSpec, debugConfigs, |
| configsCount[0], configsCount); |
| |
| for (EGLConfig config : debugConfigs) { |
| printConfig(config); |
| } |
| } |
| |
| if (!sEgl.eglChooseConfig(sEglDisplay, configSpec, configs, 1, configsCount)) { |
| throw new IllegalArgumentException("eglChooseConfig failed " + |
| GLUtils.getEGLErrorString(sEgl.eglGetError())); |
| } else if (configsCount[0] > 0) { |
| if ("choice".equalsIgnoreCase(debug)) { |
| printConfig(configs[0]); |
| } |
| return configs[0]; |
| } |
| |
| return null; |
| } |
| |
| private void printConfig(EGLConfig config) { |
| int[] value = new int[1]; |
| |
| Log.d(LOG_TAG, "EGL configuration " + config + ":"); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_RED_SIZE, value); |
| Log.d(LOG_TAG, " RED_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_GREEN_SIZE, value); |
| Log.d(LOG_TAG, " GREEN_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_BLUE_SIZE, value); |
| Log.d(LOG_TAG, " BLUE_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_ALPHA_SIZE, value); |
| Log.d(LOG_TAG, " ALPHA_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_DEPTH_SIZE, value); |
| Log.d(LOG_TAG, " DEPTH_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_STENCIL_SIZE, value); |
| Log.d(LOG_TAG, " STENCIL_SIZE = " + value[0]); |
| |
| sEgl.eglGetConfigAttrib(sEglDisplay, config, EGL_SURFACE_TYPE, value); |
| Log.d(LOG_TAG, " SURFACE_TYPE = 0x" + Integer.toHexString(value[0])); |
| } |
| |
| GL createEglSurface(SurfaceHolder holder) throws Surface.OutOfResourcesException { |
| // Check preconditions. |
| if (sEgl == null) { |
| throw new RuntimeException("egl not initialized"); |
| } |
| if (sEglDisplay == null) { |
| throw new RuntimeException("eglDisplay not initialized"); |
| } |
| if (sEglConfig == null) { |
| throw new RuntimeException("eglConfig not initialized"); |
| } |
| if (Thread.currentThread() != mEglThread) { |
| throw new IllegalStateException("HardwareRenderer cannot be used " |
| + "from multiple threads"); |
| } |
| |
| // In case we need to destroy an existing surface |
| destroySurface(); |
| |
| // Create an EGL surface we can render into. |
| if (!createSurface(holder)) { |
| return null; |
| } |
| |
| /* |
| * Before we can issue GL commands, we need to make sure |
| * the context is current and bound to a surface. |
| */ |
| if (!sEgl.eglMakeCurrent(sEglDisplay, mEglSurface, mEglSurface, mEglContext)) { |
| throw new Surface.OutOfResourcesException("eglMakeCurrent failed " |
| + GLUtils.getEGLErrorString(sEgl.eglGetError())); |
| } |
| |
| // If mDirtyRegions is set, this means we have an EGL configuration |
| // with EGL_SWAP_BEHAVIOR_PRESERVED_BIT set |
| if (sDirtyRegions) { |
| if (!(mDirtyRegionsEnabled = GLES20Canvas.preserveBackBuffer())) { |
| Log.w(LOG_TAG, "Backbuffer cannot be preserved"); |
| } |
| } else if (sDirtyRegionsRequested) { |
| // If mDirtyRegions is not set, our EGL configuration does not |
| // have EGL_SWAP_BEHAVIOR_PRESERVED_BIT; however, the default |
| // swap behavior might be EGL_BUFFER_PRESERVED, which means we |
| // want to set mDirtyRegions. We try to do this only if dirty |
| // regions were initially requested as part of the device |
| // configuration (see RENDER_DIRTY_REGIONS) |
| mDirtyRegionsEnabled = GLES20Canvas.isBackBufferPreserved(); |
| } |
| |
| return mEglContext.getGL(); |
| } |
| |
| EGLContext createContext(EGL10 egl, EGLDisplay eglDisplay, EGLConfig eglConfig) { |
| int[] attribs = { EGL_CONTEXT_CLIENT_VERSION, mGlVersion, EGL_NONE }; |
| |
| return egl.eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, |
| mGlVersion != 0 ? attribs : null); |
| } |
| |
| @Override |
| void destroy(boolean full) { |
| if (full && mCanvas != null) { |
| mCanvas = null; |
| } |
| |
| if (!isEnabled() || mDestroyed) { |
| setEnabled(false); |
| return; |
| } |
| |
| destroySurface(); |
| setEnabled(false); |
| |
| mDestroyed = true; |
| mGl = null; |
| } |
| |
| void destroySurface() { |
| if (mEglSurface != null && mEglSurface != EGL_NO_SURFACE) { |
| sEgl.eglMakeCurrent(sEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
| sEgl.eglDestroySurface(sEglDisplay, mEglSurface); |
| mEglSurface = null; |
| } |
| } |
| |
| @Override |
| void invalidate(SurfaceHolder holder) { |
| // Cancels any existing buffer to ensure we'll get a buffer |
| // of the right size before we call eglSwapBuffers |
| sEgl.eglMakeCurrent(sEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
| |
| if (mEglSurface != null && mEglSurface != EGL_NO_SURFACE) { |
| sEgl.eglDestroySurface(sEglDisplay, mEglSurface); |
| mEglSurface = null; |
| setEnabled(false); |
| } |
| |
| if (holder.getSurface().isValid()) { |
| if (!createSurface(holder)) { |
| return; |
| } |
| if (mCanvas != null) { |
| setEnabled(true); |
| } |
| } |
| } |
| |
| private boolean createSurface(SurfaceHolder holder) { |
| mEglSurface = sEgl.eglCreateWindowSurface(sEglDisplay, sEglConfig, holder, null); |
| |
| if (mEglSurface == null || mEglSurface == EGL_NO_SURFACE) { |
| int error = sEgl.eglGetError(); |
| if (error == EGL_BAD_NATIVE_WINDOW) { |
| Log.e(LOG_TAG, "createWindowSurface returned EGL_BAD_NATIVE_WINDOW."); |
| return false; |
| } |
| throw new RuntimeException("createWindowSurface failed " |
| + GLUtils.getEGLErrorString(error)); |
| } |
| return true; |
| } |
| |
| @Override |
| boolean validate() { |
| return checkCurrent() != SURFACE_STATE_ERROR; |
| } |
| |
| @Override |
| void setup(int width, int height) { |
| if (validate()) { |
| mCanvas.setViewport(width, height); |
| mWidth = width; |
| mHeight = height; |
| } |
| } |
| |
| @Override |
| int getWidth() { |
| return mWidth; |
| } |
| |
| @Override |
| int getHeight() { |
| return mHeight; |
| } |
| |
| boolean canDraw() { |
| return mGl != null && mCanvas != null; |
| } |
| |
| void onPreDraw(Rect dirty) { |
| } |
| |
| void onPostDraw() { |
| } |
| |
| @Override |
| boolean draw(View view, View.AttachInfo attachInfo, HardwareDrawCallbacks callbacks, |
| Rect dirty) { |
| if (canDraw()) { |
| if (!hasDirtyRegions()) { |
| dirty = null; |
| } |
| attachInfo.mIgnoreDirtyState = true; |
| attachInfo.mDrawingTime = SystemClock.uptimeMillis(); |
| |
| view.mPrivateFlags |= View.DRAWN; |
| |
| final int surfaceState = checkCurrent(); |
| if (surfaceState != SURFACE_STATE_ERROR) { |
| // We had to change the current surface and/or context, redraw everything |
| if (surfaceState == SURFACE_STATE_UPDATED) { |
| dirty = null; |
| } |
| |
| onPreDraw(dirty); |
| |
| HardwareCanvas canvas = mCanvas; |
| attachInfo.mHardwareCanvas = canvas; |
| |
| int saveCount = canvas.save(); |
| callbacks.onHardwarePreDraw(canvas); |
| |
| try { |
| view.mRecreateDisplayList = |
| (view.mPrivateFlags & View.INVALIDATED) == View.INVALIDATED; |
| view.mPrivateFlags &= ~View.INVALIDATED; |
| |
| DisplayList displayList = view.getDisplayList(); |
| if (displayList != null) { |
| if (canvas.drawDisplayList(displayList, view.getWidth(), |
| view.getHeight(), mRedrawClip)) { |
| if (mRedrawClip.isEmpty() || view.getParent() == null) { |
| view.invalidate(); |
| } else { |
| view.getParent().invalidateChild(view, mRedrawClip); |
| } |
| mRedrawClip.setEmpty(); |
| } |
| } else { |
| // Shouldn't reach here |
| view.draw(canvas); |
| } |
| |
| if (DEBUG_DIRTY_REGION) { |
| if (mDebugPaint == null) { |
| mDebugPaint = new Paint(); |
| mDebugPaint.setColor(0x7fff0000); |
| } |
| if (dirty != null && (mFrameCount++ & 1) == 0) { |
| canvas.drawRect(dirty, mDebugPaint); |
| } |
| } |
| } finally { |
| callbacks.onHardwarePostDraw(canvas); |
| canvas.restoreToCount(saveCount); |
| view.mRecreateDisplayList = false; |
| } |
| |
| onPostDraw(); |
| |
| attachInfo.mIgnoreDirtyState = false; |
| |
| sEgl.eglSwapBuffers(sEglDisplay, mEglSurface); |
| checkEglErrors(); |
| |
| return dirty == null; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Ensures the current EGL context is the one we expect. |
| * |
| * @return {@link #SURFACE_STATE_ERROR} if the correct EGL context cannot be made current, |
| * {@link #SURFACE_STATE_UPDATED} if the EGL context was changed or |
| * {@link #SURFACE_STATE_SUCCESS} if the EGL context was the correct one |
| */ |
| int checkCurrent() { |
| if (mEglThread != Thread.currentThread()) { |
| throw new IllegalStateException("Hardware acceleration can only be used with a " + |
| "single UI thread.\nOriginal thread: " + mEglThread + "\n" + |
| "Current thread: " + Thread.currentThread()); |
| } |
| |
| if (!mEglContext.equals(sEgl.eglGetCurrentContext()) || |
| !mEglSurface.equals(sEgl.eglGetCurrentSurface(EGL_DRAW))) { |
| if (!sEgl.eglMakeCurrent(sEglDisplay, mEglSurface, mEglSurface, mEglContext)) { |
| Log.e(LOG_TAG, "eglMakeCurrent failed " + |
| GLUtils.getEGLErrorString(sEgl.eglGetError())); |
| fallback(true); |
| return SURFACE_STATE_ERROR; |
| } else { |
| return SURFACE_STATE_UPDATED; |
| } |
| } |
| return SURFACE_STATE_SUCCESS; |
| } |
| } |
| |
| /** |
| * Hardware renderer using OpenGL ES 2.0. |
| */ |
| static class Gl20Renderer extends GlRenderer { |
| private GLES20Canvas mGlCanvas; |
| |
| private static EGLSurface sPbuffer; |
| private static final Object[] sPbufferLock = new Object[0]; |
| |
| Gl20Renderer(boolean translucent) { |
| super(2, translucent); |
| } |
| |
| @Override |
| GLES20Canvas createCanvas() { |
| return mGlCanvas = new GLES20Canvas(mTranslucent); |
| } |
| |
| @Override |
| int[] getConfig(boolean dirtyRegions) { |
| return new int[] { |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL_RED_SIZE, 8, |
| EGL_GREEN_SIZE, 8, |
| EGL_BLUE_SIZE, 8, |
| EGL_ALPHA_SIZE, 8, |
| EGL_DEPTH_SIZE, 0, |
| EGL_STENCIL_SIZE, 0, |
| EGL_SURFACE_TYPE, EGL_WINDOW_BIT | |
| (dirtyRegions ? EGL_SWAP_BEHAVIOR_PRESERVED_BIT : 0), |
| EGL_NONE |
| }; |
| } |
| |
| @Override |
| boolean canDraw() { |
| return super.canDraw() && mGlCanvas != null; |
| } |
| |
| @Override |
| void onPreDraw(Rect dirty) { |
| mGlCanvas.onPreDraw(dirty); |
| } |
| |
| @Override |
| void onPostDraw() { |
| mGlCanvas.onPostDraw(); |
| } |
| |
| @Override |
| void destroy(boolean full) { |
| try { |
| super.destroy(full); |
| } finally { |
| if (full && mGlCanvas != null) { |
| mGlCanvas = null; |
| } |
| } |
| } |
| |
| @Override |
| void setup(int width, int height) { |
| super.setup(width, height); |
| if (mVsyncDisabled) { |
| GLES20Canvas.disableVsync(); |
| } |
| } |
| |
| @Override |
| DisplayList createDisplayList() { |
| return new GLES20DisplayList(); |
| } |
| |
| @Override |
| HardwareLayer createHardwareLayer(boolean isOpaque) { |
| return new GLES20TextureLayer(isOpaque); |
| } |
| |
| @Override |
| HardwareLayer createHardwareLayer(int width, int height, boolean isOpaque) { |
| return new GLES20RenderLayer(width, height, isOpaque); |
| } |
| |
| @Override |
| SurfaceTexture createSurfaceTexture(HardwareLayer layer) { |
| return ((GLES20TextureLayer) layer).getSurfaceTexture(); |
| } |
| |
| @Override |
| void destroyLayers(View view) { |
| if (view != null && isEnabled() && checkCurrent() != SURFACE_STATE_ERROR) { |
| destroyHardwareLayer(view); |
| GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_LAYERS); |
| } |
| } |
| |
| private void destroyHardwareLayer(View view) { |
| if (view.destroyLayer()) { |
| view.invalidate(true); |
| } |
| if (view instanceof ViewGroup) { |
| ViewGroup group = (ViewGroup) view; |
| |
| int count = group.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| destroyHardwareLayer(group.getChildAt(i)); |
| } |
| } |
| } |
| |
| static HardwareRenderer create(boolean translucent) { |
| if (GLES20Canvas.isAvailable()) { |
| return new Gl20Renderer(translucent); |
| } |
| return null; |
| } |
| |
| static void trimMemory(int level) { |
| if (sEgl == null || sEglConfig == null) return; |
| |
| EGLContext eglContext = sEglContextStorage.get(); |
| // We do not have OpenGL objects |
| if (eglContext == null) { |
| return; |
| } else { |
| synchronized (sPbufferLock) { |
| // Create a temporary 1x1 pbuffer so we have a context |
| // to clear our OpenGL objects |
| if (sPbuffer == null) { |
| sPbuffer = sEgl.eglCreatePbufferSurface(sEglDisplay, sEglConfig, new int[] { |
| EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE |
| }); |
| } |
| } |
| sEgl.eglMakeCurrent(sEglDisplay, sPbuffer, sPbuffer, eglContext); |
| } |
| |
| switch (level) { |
| case ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN: |
| case ComponentCallbacks2.TRIM_MEMORY_BACKGROUND: |
| case ComponentCallbacks2.TRIM_MEMORY_MODERATE: |
| GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_MODERATE); |
| break; |
| case ComponentCallbacks2.TRIM_MEMORY_COMPLETE: |
| GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_FULL); |
| break; |
| } |
| } |
| } |
| } |