The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.view; |
| 18 | |
| 19 | import android.content.Context; |
Mitsuru Oshima | 38ed7d77 | 2009-07-21 14:39:34 -0700 | [diff] [blame] | 20 | import android.content.res.Resources; |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 21 | import android.content.res.CompatibilityInfo.Translator; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 22 | import android.graphics.Canvas; |
| 23 | import android.graphics.PixelFormat; |
| 24 | import android.graphics.PorterDuff; |
| 25 | import android.graphics.Rect; |
| 26 | import android.graphics.Region; |
| 27 | import android.os.Handler; |
| 28 | import android.os.Message; |
| 29 | import android.os.RemoteException; |
| 30 | import android.os.SystemClock; |
| 31 | import android.os.ParcelFileDescriptor; |
| 32 | import android.util.AttributeSet; |
| 33 | import android.util.Config; |
| 34 | import android.util.Log; |
| 35 | import java.util.ArrayList; |
| 36 | |
| 37 | import java.util.concurrent.locks.ReentrantLock; |
| 38 | import java.lang.ref.WeakReference; |
| 39 | |
| 40 | /** |
| 41 | * Provides a dedicated drawing surface embedded inside of a view hierarchy. |
| 42 | * You can control the format of this surface and, if you like, its size; the |
| 43 | * SurfaceView takes care of placing the surface at the correct location on the |
| 44 | * screen |
| 45 | * |
| 46 | * <p>The surface is Z ordered so that it is behind the window holding its |
| 47 | * SurfaceView; the SurfaceView punches a hole in its window to allow its |
| 48 | * surface to be displayed. The view hierarchy will take care of correctly |
| 49 | * compositing with the Surface any siblings of the SurfaceView that would |
| 50 | * normally appear on top of it. This can be used to place overlays such as |
| 51 | * buttons on top of the Surface, though note however that it can have an |
| 52 | * impact on performance since a full alpha-blended composite will be performed |
| 53 | * each time the Surface changes. |
| 54 | * |
| 55 | * <p>Access to the underlying surface is provided via the SurfaceHolder interface, |
| 56 | * which can be retrieved by calling {@link #getHolder}. |
| 57 | * |
| 58 | * <p>The Surface will be created for you while the SurfaceView's window is |
| 59 | * visible; you should implement {@link SurfaceHolder.Callback#surfaceCreated} |
| 60 | * and {@link SurfaceHolder.Callback#surfaceDestroyed} to discover when the |
| 61 | * Surface is created and destroyed as the window is shown and hidden. |
| 62 | * |
| 63 | * <p>One of the purposes of this class is to provide a surface in which a |
| 64 | * secondary thread can render in to the screen. If you are going to use it |
| 65 | * this way, you need to be aware of some threading semantics: |
| 66 | * |
| 67 | * <ul> |
| 68 | * <li> All SurfaceView and |
| 69 | * {@link SurfaceHolder.Callback SurfaceHolder.Callback} methods will be called |
| 70 | * from the thread running the SurfaceView's window (typically the main thread |
| 71 | * of the application). They thus need to correctly synchronize with any |
| 72 | * state that is also touched by the drawing thread. |
| 73 | * <li> You must ensure that the drawing thread only touches the underlying |
| 74 | * Surface while it is valid -- between |
| 75 | * {@link SurfaceHolder.Callback#surfaceCreated SurfaceHolder.Callback.surfaceCreated()} |
| 76 | * and |
| 77 | * {@link SurfaceHolder.Callback#surfaceDestroyed SurfaceHolder.Callback.surfaceDestroyed()}. |
| 78 | * </ul> |
| 79 | */ |
| 80 | public class SurfaceView extends View { |
| 81 | static private final String TAG = "SurfaceView"; |
| 82 | static private final boolean DEBUG = false; |
| 83 | static private final boolean localLOGV = DEBUG ? true : Config.LOGV; |
| 84 | |
| 85 | final ArrayList<SurfaceHolder.Callback> mCallbacks |
| 86 | = new ArrayList<SurfaceHolder.Callback>(); |
| 87 | |
| 88 | final int[] mLocation = new int[2]; |
| 89 | |
| 90 | final ReentrantLock mSurfaceLock = new ReentrantLock(); |
| 91 | final Surface mSurface = new Surface(); |
| 92 | boolean mDrawingStopped = true; |
| 93 | |
| 94 | final WindowManager.LayoutParams mLayout |
| 95 | = new WindowManager.LayoutParams(); |
| 96 | IWindowSession mSession; |
| 97 | MyWindow mWindow; |
| 98 | final Rect mVisibleInsets = new Rect(); |
| 99 | final Rect mWinFrame = new Rect(); |
| 100 | final Rect mContentInsets = new Rect(); |
| 101 | |
| 102 | static final int KEEP_SCREEN_ON_MSG = 1; |
| 103 | static final int GET_NEW_SURFACE_MSG = 2; |
| 104 | |
Dianne Hackborn | c4d5d02 | 2009-05-21 17:32:42 -0700 | [diff] [blame] | 105 | int mWindowType = WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA; |
| 106 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 107 | boolean mIsCreating = false; |
| 108 | |
| 109 | final Handler mHandler = new Handler() { |
| 110 | @Override |
| 111 | public void handleMessage(Message msg) { |
| 112 | switch (msg.what) { |
| 113 | case KEEP_SCREEN_ON_MSG: { |
| 114 | setKeepScreenOn(msg.arg1 != 0); |
| 115 | } break; |
| 116 | case GET_NEW_SURFACE_MSG: { |
| 117 | handleGetNewSurface(); |
| 118 | } break; |
| 119 | } |
| 120 | } |
| 121 | }; |
| 122 | |
| 123 | boolean mRequestedVisible = false; |
| 124 | int mRequestedWidth = -1; |
| 125 | int mRequestedHeight = -1; |
| 126 | int mRequestedFormat = PixelFormat.OPAQUE; |
| 127 | int mRequestedType = -1; |
| 128 | |
| 129 | boolean mHaveFrame = false; |
| 130 | boolean mDestroyReportNeeded = false; |
| 131 | boolean mNewSurfaceNeeded = false; |
| 132 | long mLastLockTime = 0; |
| 133 | |
| 134 | boolean mVisible = false; |
| 135 | int mLeft = -1; |
| 136 | int mTop = -1; |
| 137 | int mWidth = -1; |
| 138 | int mHeight = -1; |
| 139 | int mFormat = -1; |
| 140 | int mType = -1; |
| 141 | final Rect mSurfaceFrame = new Rect(); |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 142 | private Translator mTranslator; |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 143 | |
| 144 | // A flag to indicate that the Canvas has to be scaled |
| 145 | private boolean mScaleCanvas = false; |
| 146 | // A flag to indicate that the Canvas is in use and being scaled. |
| 147 | // This may remain to be false even if mScaleCanvas is true if the applicatio |
| 148 | // does not use the canvas (such as GLSurfaceView, VideoView). |
| 149 | private boolean mCanvasScaled = false; |
| 150 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 151 | public SurfaceView(Context context) { |
| 152 | super(context); |
| 153 | setWillNotDraw(true); |
| 154 | } |
| 155 | |
| 156 | public SurfaceView(Context context, AttributeSet attrs) { |
| 157 | super(context, attrs); |
| 158 | setWillNotDraw(true); |
| 159 | } |
| 160 | |
| 161 | public SurfaceView(Context context, AttributeSet attrs, int defStyle) { |
| 162 | super(context, attrs, defStyle); |
| 163 | setWillNotDraw(true); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Return the SurfaceHolder providing access and control over this |
| 168 | * SurfaceView's underlying surface. |
| 169 | * |
| 170 | * @return SurfaceHolder The holder of the surface. |
| 171 | */ |
| 172 | public SurfaceHolder getHolder() { |
| 173 | return mSurfaceHolder; |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | protected void onAttachedToWindow() { |
| 178 | super.onAttachedToWindow(); |
| 179 | mParent.requestTransparentRegion(this); |
| 180 | mSession = getWindowSession(); |
| 181 | mLayout.token = getWindowToken(); |
| 182 | mLayout.setTitle("SurfaceView"); |
| 183 | } |
| 184 | |
| 185 | @Override |
| 186 | protected void onWindowVisibilityChanged(int visibility) { |
| 187 | super.onWindowVisibilityChanged(visibility); |
| 188 | mRequestedVisible = visibility == VISIBLE; |
| 189 | updateWindow(false); |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | protected void onDetachedFromWindow() { |
| 194 | mRequestedVisible = false; |
| 195 | updateWindow(false); |
| 196 | mHaveFrame = false; |
| 197 | if (mWindow != null) { |
| 198 | try { |
| 199 | mSession.remove(mWindow); |
| 200 | } catch (RemoteException ex) { |
| 201 | } |
| 202 | mWindow = null; |
| 203 | } |
| 204 | mSession = null; |
| 205 | mLayout.token = null; |
| 206 | |
| 207 | super.onDetachedFromWindow(); |
| 208 | } |
| 209 | |
| 210 | @Override |
| 211 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| 212 | int width = getDefaultSize(mRequestedWidth, widthMeasureSpec); |
| 213 | int height = getDefaultSize(mRequestedHeight, heightMeasureSpec); |
| 214 | setMeasuredDimension(width, height); |
| 215 | } |
| 216 | |
| 217 | @Override |
| 218 | protected void onScrollChanged(int l, int t, int oldl, int oldt) { |
| 219 | super.onScrollChanged(l, t, oldl, oldt); |
| 220 | updateWindow(false); |
| 221 | } |
| 222 | |
| 223 | @Override |
| 224 | protected void onSizeChanged(int w, int h, int oldw, int oldh) { |
| 225 | super.onSizeChanged(w, h, oldw, oldh); |
| 226 | updateWindow(false); |
| 227 | } |
| 228 | |
| 229 | @Override |
| 230 | public boolean gatherTransparentRegion(Region region) { |
| 231 | boolean opaque = true; |
| 232 | if ((mPrivateFlags & SKIP_DRAW) == 0) { |
| 233 | // this view draws, remove it from the transparent region |
| 234 | opaque = super.gatherTransparentRegion(region); |
| 235 | } else if (region != null) { |
| 236 | int w = getWidth(); |
| 237 | int h = getHeight(); |
| 238 | if (w>0 && h>0) { |
| 239 | getLocationInWindow(mLocation); |
| 240 | // otherwise, punch a hole in the whole hierarchy |
| 241 | int l = mLocation[0]; |
| 242 | int t = mLocation[1]; |
| 243 | region.op(l, t, l+w, t+h, Region.Op.UNION); |
| 244 | } |
| 245 | } |
| 246 | if (PixelFormat.formatHasAlpha(mRequestedFormat)) { |
| 247 | opaque = false; |
| 248 | } |
| 249 | return opaque; |
| 250 | } |
| 251 | |
| 252 | @Override |
| 253 | public void draw(Canvas canvas) { |
| 254 | // draw() is not called when SKIP_DRAW is set |
| 255 | if ((mPrivateFlags & SKIP_DRAW) == 0) { |
| 256 | // punch a whole in the view-hierarchy below us |
| 257 | canvas.drawColor(0, PorterDuff.Mode.CLEAR); |
| 258 | } |
| 259 | super.draw(canvas); |
| 260 | } |
| 261 | |
| 262 | @Override |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 263 | public boolean dispatchTouchEvent(MotionEvent event) { |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 264 | if (mTranslator == null || mCanvasScaled) { |
| 265 | // Use the event as is if no scaling is required, or the surface's canvas |
| 266 | // is scaled too. |
| 267 | return super.dispatchTouchEvent(event); |
| 268 | } else { |
| 269 | // The surface is in native size, so we need to scale the event |
| 270 | // back to native location. |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 271 | MotionEvent scaledBack = MotionEvent.obtain(event); |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 272 | // scale back to original |
| 273 | scaledBack.scale(mTranslator.applicationScale); |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 274 | try { |
| 275 | return super.dispatchTouchEvent(scaledBack); |
| 276 | } finally { |
| 277 | scaledBack.recycle(); |
| 278 | } |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 279 | } |
| 280 | } |
| 281 | |
| 282 | @Override |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 283 | protected void dispatchDraw(Canvas canvas) { |
| 284 | // if SKIP_DRAW is cleared, draw() has already punched a hole |
| 285 | if ((mPrivateFlags & SKIP_DRAW) == SKIP_DRAW) { |
| 286 | // punch a whole in the view-hierarchy below us |
| 287 | canvas.drawColor(0, PorterDuff.Mode.CLEAR); |
| 288 | } |
| 289 | // reposition ourselves where the surface is |
| 290 | mHaveFrame = true; |
| 291 | updateWindow(false); |
| 292 | super.dispatchDraw(canvas); |
| 293 | } |
| 294 | |
Dianne Hackborn | c4d5d02 | 2009-05-21 17:32:42 -0700 | [diff] [blame] | 295 | /** |
| 296 | * Hack to allow special layering of windows. The type is one of the |
| 297 | * types in WindowManager.LayoutParams. This is a hack so: |
| 298 | * @hide |
| 299 | */ |
| 300 | public void setWindowType(int type) { |
| 301 | mWindowType = type; |
| 302 | } |
Mitsuru Oshima | 34bf2ee | 2009-07-17 09:57:28 -0700 | [diff] [blame] | 303 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 304 | private void updateWindow(boolean force) { |
| 305 | if (!mHaveFrame) { |
| 306 | return; |
| 307 | } |
Mitsuru Oshima | 841f13c | 2009-07-17 17:23:31 -0700 | [diff] [blame] | 308 | ViewRoot viewRoot = (ViewRoot) getRootView().getParent(); |
| 309 | mTranslator = viewRoot.mTranslator; |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 310 | |
| 311 | float appScale = mTranslator == null ? 1.0f : mTranslator.applicationScale; |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 312 | |
Mitsuru Oshima | 38ed7d77 | 2009-07-21 14:39:34 -0700 | [diff] [blame] | 313 | Resources res = getContext().getResources(); |
| 314 | if (mTranslator != null || !res.getCompatibilityInfo().supportsScreen()) { |
| 315 | mSurface.setCompatibleDisplayMetrics(res.getDisplayMetrics()); |
| 316 | } |
| 317 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 318 | int myWidth = mRequestedWidth; |
| 319 | if (myWidth <= 0) myWidth = getWidth(); |
| 320 | int myHeight = mRequestedHeight; |
| 321 | if (myHeight <= 0) myHeight = getHeight(); |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 322 | |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 323 | // Use requested size if the app specified the size of the view |
| 324 | // and let the flinger to scale up. Otherwise, use the native size |
| 325 | // (* appScale) and assume the application can handle it. |
Mitsuru Oshima | 1ecf5d2 | 2009-07-06 17:20:38 -0700 | [diff] [blame] | 326 | if (mRequestedWidth <= 0 && mTranslator != null) { |
Mitsuru Oshima | 61324e5 | 2009-07-21 15:40:36 -0700 | [diff] [blame] | 327 | myWidth = (int) (myWidth * appScale + 0.5f); |
| 328 | myHeight = (int) (myHeight * appScale + 0.5f); |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 329 | mScaleCanvas = true; |
Mitsuru Oshima | 34bf2ee | 2009-07-17 09:57:28 -0700 | [diff] [blame] | 330 | } else { |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 331 | mScaleCanvas = false; |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 332 | } |
| 333 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 334 | getLocationInWindow(mLocation); |
| 335 | final boolean creating = mWindow == null; |
| 336 | final boolean formatChanged = mFormat != mRequestedFormat; |
| 337 | final boolean sizeChanged = mWidth != myWidth || mHeight != myHeight; |
| 338 | final boolean visibleChanged = mVisible != mRequestedVisible |
| 339 | || mNewSurfaceNeeded; |
| 340 | final boolean typeChanged = mType != mRequestedType; |
| 341 | if (force || creating || formatChanged || sizeChanged || visibleChanged |
| 342 | || typeChanged || mLeft != mLocation[0] || mTop != mLocation[1]) { |
| 343 | |
| 344 | if (localLOGV) Log.i(TAG, "Changes: creating=" + creating |
| 345 | + " format=" + formatChanged + " size=" + sizeChanged |
| 346 | + " visible=" + visibleChanged |
| 347 | + " left=" + (mLeft != mLocation[0]) |
| 348 | + " top=" + (mTop != mLocation[1])); |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 349 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 350 | try { |
| 351 | final boolean visible = mVisible = mRequestedVisible; |
| 352 | mLeft = mLocation[0]; |
| 353 | mTop = mLocation[1]; |
| 354 | mWidth = myWidth; |
| 355 | mHeight = myHeight; |
| 356 | mFormat = mRequestedFormat; |
| 357 | mType = mRequestedType; |
| 358 | |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 359 | // Scaling/Translate window's layout here because mLayout is not used elsewhere. |
| 360 | |
| 361 | // Places the window relative |
| 362 | mLayout.x = mLeft; |
| 363 | mLayout.y = mTop; |
| 364 | mLayout.width = getWidth(); |
| 365 | mLayout.height = getHeight(); |
| 366 | if (mTranslator != null) { |
| 367 | mTranslator.translateLayoutParamsInAppWindowToScreen(mLayout); |
| 368 | } |
| 369 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 370 | mLayout.format = mRequestedFormat; |
| 371 | mLayout.flags |=WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS |
| 372 | | WindowManager.LayoutParams.FLAG_SCALED |
| 373 | | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
| 374 | | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE |
| 375 | ; |
Mitsuru Oshima | 841f13c | 2009-07-17 17:23:31 -0700 | [diff] [blame] | 376 | if (!getContext().getResources().getCompatibilityInfo().supportsScreen()) { |
| 377 | mLayout.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW; |
| 378 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 379 | |
| 380 | mLayout.memoryType = mRequestedType; |
| 381 | |
| 382 | if (mWindow == null) { |
| 383 | mWindow = new MyWindow(this); |
Dianne Hackborn | c4d5d02 | 2009-05-21 17:32:42 -0700 | [diff] [blame] | 384 | mLayout.type = mWindowType; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 385 | mLayout.gravity = Gravity.LEFT|Gravity.TOP; |
| 386 | mSession.add(mWindow, mLayout, |
| 387 | mVisible ? VISIBLE : GONE, mContentInsets); |
| 388 | } |
| 389 | |
| 390 | if (visibleChanged && (!visible || mNewSurfaceNeeded)) { |
| 391 | reportSurfaceDestroyed(); |
| 392 | } |
| 393 | |
| 394 | mNewSurfaceNeeded = false; |
| 395 | |
| 396 | mSurfaceLock.lock(); |
| 397 | mDrawingStopped = !visible; |
Mitsuru Oshima | 9189cab | 2009-06-03 11:19:12 -0700 | [diff] [blame] | 398 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 399 | final int relayoutResult = mSession.relayout( |
Mitsuru Oshima | 001a6e52 | 2009-05-11 21:14:03 -0700 | [diff] [blame] | 400 | mWindow, mLayout, mWidth, mHeight, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 401 | visible ? VISIBLE : GONE, false, mWinFrame, mContentInsets, |
| 402 | mVisibleInsets, mSurface); |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 403 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 404 | if (localLOGV) Log.i(TAG, "New surface: " + mSurface |
| 405 | + ", vis=" + visible + ", frame=" + mWinFrame); |
| 406 | mSurfaceFrame.left = 0; |
| 407 | mSurfaceFrame.top = 0; |
| 408 | mSurfaceFrame.right = mWinFrame.width(); |
| 409 | mSurfaceFrame.bottom = mWinFrame.height(); |
| 410 | mSurfaceLock.unlock(); |
| 411 | |
| 412 | try { |
| 413 | if (visible) { |
| 414 | mDestroyReportNeeded = true; |
| 415 | |
| 416 | SurfaceHolder.Callback callbacks[]; |
| 417 | synchronized (mCallbacks) { |
| 418 | callbacks = new SurfaceHolder.Callback[mCallbacks.size()]; |
| 419 | mCallbacks.toArray(callbacks); |
Mitsuru Oshima | 3d91492 | 2009-05-13 22:29:15 -0700 | [diff] [blame] | 420 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 421 | |
| 422 | if (visibleChanged) { |
| 423 | mIsCreating = true; |
| 424 | for (SurfaceHolder.Callback c : callbacks) { |
| 425 | c.surfaceCreated(mSurfaceHolder); |
| 426 | } |
| 427 | } |
| 428 | if (creating || formatChanged || sizeChanged |
| 429 | || visibleChanged) { |
| 430 | for (SurfaceHolder.Callback c : callbacks) { |
| 431 | c.surfaceChanged(mSurfaceHolder, mFormat, mWidth, mHeight); |
| 432 | } |
| 433 | } |
| 434 | } |
| 435 | } finally { |
| 436 | mIsCreating = false; |
| 437 | if (creating || (relayoutResult&WindowManagerImpl.RELAYOUT_FIRST_TIME) != 0) { |
| 438 | mSession.finishDrawing(mWindow); |
| 439 | } |
| 440 | } |
| 441 | } catch (RemoteException ex) { |
| 442 | } |
| 443 | if (localLOGV) Log.v( |
| 444 | TAG, "Layout: x=" + mLayout.x + " y=" + mLayout.y + |
| 445 | " w=" + mLayout.width + " h=" + mLayout.height + |
| 446 | ", frame=" + mSurfaceFrame); |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | private void reportSurfaceDestroyed() { |
| 451 | if (mDestroyReportNeeded) { |
| 452 | mDestroyReportNeeded = false; |
| 453 | SurfaceHolder.Callback callbacks[]; |
| 454 | synchronized (mCallbacks) { |
| 455 | callbacks = new SurfaceHolder.Callback[mCallbacks.size()]; |
| 456 | mCallbacks.toArray(callbacks); |
| 457 | } |
| 458 | for (SurfaceHolder.Callback c : callbacks) { |
| 459 | c.surfaceDestroyed(mSurfaceHolder); |
| 460 | } |
| 461 | } |
| 462 | super.onDetachedFromWindow(); |
| 463 | } |
| 464 | |
| 465 | void handleGetNewSurface() { |
| 466 | mNewSurfaceNeeded = true; |
| 467 | updateWindow(false); |
| 468 | } |
| 469 | |
| 470 | private static class MyWindow extends IWindow.Stub { |
Mitsuru Oshima | 8169dae | 2009-04-28 18:12:09 -0700 | [diff] [blame] | 471 | private final WeakReference<SurfaceView> mSurfaceView; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 472 | |
| 473 | public MyWindow(SurfaceView surfaceView) { |
| 474 | mSurfaceView = new WeakReference<SurfaceView>(surfaceView); |
| 475 | } |
| 476 | |
| 477 | public void resized(int w, int h, Rect coveredInsets, |
| 478 | Rect visibleInsets, boolean reportDraw) { |
| 479 | SurfaceView surfaceView = mSurfaceView.get(); |
| 480 | if (surfaceView != null) { |
| 481 | if (localLOGV) Log.v( |
| 482 | "SurfaceView", surfaceView + " got resized: w=" + |
| 483 | w + " h=" + h + ", cur w=" + mCurWidth + " h=" + mCurHeight); |
| 484 | synchronized (this) { |
| 485 | if (mCurWidth != w || mCurHeight != h) { |
| 486 | mCurWidth = w; |
| 487 | mCurHeight = h; |
| 488 | } |
| 489 | if (reportDraw) { |
| 490 | try { |
| 491 | surfaceView.mSession.finishDrawing(surfaceView.mWindow); |
| 492 | } catch (RemoteException e) { |
| 493 | } |
| 494 | } |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | public void dispatchKey(KeyEvent event) { |
| 500 | SurfaceView surfaceView = mSurfaceView.get(); |
| 501 | if (surfaceView != null) { |
| 502 | //Log.w("SurfaceView", "Unexpected key event in surface: " + event); |
| 503 | if (surfaceView.mSession != null && surfaceView.mSurface != null) { |
| 504 | try { |
| 505 | surfaceView.mSession.finishKey(surfaceView.mWindow); |
| 506 | } catch (RemoteException ex) { |
| 507 | } |
| 508 | } |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | public void dispatchPointer(MotionEvent event, long eventTime) { |
| 513 | Log.w("SurfaceView", "Unexpected pointer event in surface: " + event); |
| 514 | //if (mSession != null && mSurface != null) { |
| 515 | // try { |
| 516 | // //mSession.finishKey(mWindow); |
| 517 | // } catch (RemoteException ex) { |
| 518 | // } |
| 519 | //} |
| 520 | } |
| 521 | |
| 522 | public void dispatchTrackball(MotionEvent event, long eventTime) { |
| 523 | Log.w("SurfaceView", "Unexpected trackball event in surface: " + event); |
| 524 | //if (mSession != null && mSurface != null) { |
| 525 | // try { |
| 526 | // //mSession.finishKey(mWindow); |
| 527 | // } catch (RemoteException ex) { |
| 528 | // } |
| 529 | //} |
| 530 | } |
| 531 | |
| 532 | public void dispatchAppVisibility(boolean visible) { |
| 533 | // The point of SurfaceView is to let the app control the surface. |
| 534 | } |
| 535 | |
| 536 | public void dispatchGetNewSurface() { |
| 537 | SurfaceView surfaceView = mSurfaceView.get(); |
| 538 | if (surfaceView != null) { |
| 539 | Message msg = surfaceView.mHandler.obtainMessage(GET_NEW_SURFACE_MSG); |
| 540 | surfaceView.mHandler.sendMessage(msg); |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | public void windowFocusChanged(boolean hasFocus, boolean touchEnabled) { |
| 545 | Log.w("SurfaceView", "Unexpected focus in surface: focus=" + hasFocus + ", touchEnabled=" + touchEnabled); |
| 546 | } |
| 547 | |
| 548 | public void executeCommand(String command, String parameters, ParcelFileDescriptor out) { |
| 549 | } |
| 550 | |
| 551 | int mCurWidth = -1; |
| 552 | int mCurHeight = -1; |
| 553 | } |
| 554 | |
| 555 | private SurfaceHolder mSurfaceHolder = new SurfaceHolder() { |
| 556 | |
| 557 | private static final String LOG_TAG = "SurfaceHolder"; |
Mitsuru Oshima | 34bf2ee | 2009-07-17 09:57:28 -0700 | [diff] [blame] | 558 | private int mSaveCount; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 559 | |
| 560 | public boolean isCreating() { |
| 561 | return mIsCreating; |
| 562 | } |
| 563 | |
| 564 | public void addCallback(Callback callback) { |
| 565 | synchronized (mCallbacks) { |
| 566 | // This is a linear search, but in practice we'll |
| 567 | // have only a couple callbacks, so it doesn't matter. |
| 568 | if (mCallbacks.contains(callback) == false) { |
| 569 | mCallbacks.add(callback); |
| 570 | } |
| 571 | } |
| 572 | } |
| 573 | |
| 574 | public void removeCallback(Callback callback) { |
| 575 | synchronized (mCallbacks) { |
| 576 | mCallbacks.remove(callback); |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | public void setFixedSize(int width, int height) { |
| 581 | if (mRequestedWidth != width || mRequestedHeight != height) { |
| 582 | mRequestedWidth = width; |
| 583 | mRequestedHeight = height; |
| 584 | requestLayout(); |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | public void setSizeFromLayout() { |
| 589 | if (mRequestedWidth != -1 || mRequestedHeight != -1) { |
| 590 | mRequestedWidth = mRequestedHeight = -1; |
| 591 | requestLayout(); |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | public void setFormat(int format) { |
| 596 | mRequestedFormat = format; |
| 597 | if (mWindow != null) { |
| 598 | updateWindow(false); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | public void setType(int type) { |
| 603 | switch (type) { |
| 604 | case SURFACE_TYPE_NORMAL: |
| 605 | case SURFACE_TYPE_HARDWARE: |
| 606 | case SURFACE_TYPE_GPU: |
| 607 | case SURFACE_TYPE_PUSH_BUFFERS: |
| 608 | mRequestedType = type; |
| 609 | if (mWindow != null) { |
| 610 | updateWindow(false); |
| 611 | } |
| 612 | break; |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | public void setKeepScreenOn(boolean screenOn) { |
| 617 | Message msg = mHandler.obtainMessage(KEEP_SCREEN_ON_MSG); |
| 618 | msg.arg1 = screenOn ? 1 : 0; |
| 619 | mHandler.sendMessage(msg); |
| 620 | } |
| 621 | |
| 622 | public Canvas lockCanvas() { |
| 623 | return internalLockCanvas(null); |
| 624 | } |
| 625 | |
| 626 | public Canvas lockCanvas(Rect dirty) { |
| 627 | return internalLockCanvas(dirty); |
| 628 | } |
| 629 | |
| 630 | private final Canvas internalLockCanvas(Rect dirty) { |
| 631 | if (mType == SURFACE_TYPE_PUSH_BUFFERS) { |
| 632 | throw new BadSurfaceTypeException( |
| 633 | "Surface type is SURFACE_TYPE_PUSH_BUFFERS"); |
| 634 | } |
| 635 | mSurfaceLock.lock(); |
| 636 | |
| 637 | if (localLOGV) Log.i(TAG, "Locking canvas... stopped=" |
| 638 | + mDrawingStopped + ", win=" + mWindow); |
| 639 | |
| 640 | Canvas c = null; |
| 641 | if (!mDrawingStopped && mWindow != null) { |
| 642 | Rect frame = dirty != null ? dirty : mSurfaceFrame; |
| 643 | try { |
| 644 | c = mSurface.lockCanvas(frame); |
| 645 | } catch (Exception e) { |
| 646 | Log.e(LOG_TAG, "Exception locking surface", e); |
| 647 | } |
| 648 | } |
| 649 | |
| 650 | if (localLOGV) Log.i(TAG, "Returned canvas: " + c); |
| 651 | if (c != null) { |
| 652 | mLastLockTime = SystemClock.uptimeMillis(); |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 653 | if (mScaleCanvas) { |
| 654 | // When the canvas is scaled, don't scale back the event's location. |
| 655 | mCanvasScaled = true; |
Mitsuru Oshima | 34bf2ee | 2009-07-17 09:57:28 -0700 | [diff] [blame] | 656 | mSaveCount = c.save(); |
| 657 | mTranslator.translateCanvas(c); |
| 658 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 659 | return c; |
| 660 | } |
| 661 | |
| 662 | // If the Surface is not ready to be drawn, then return null, |
| 663 | // but throttle calls to this function so it isn't called more |
| 664 | // than every 100ms. |
| 665 | long now = SystemClock.uptimeMillis(); |
| 666 | long nextTime = mLastLockTime + 100; |
| 667 | if (nextTime > now) { |
| 668 | try { |
| 669 | Thread.sleep(nextTime-now); |
| 670 | } catch (InterruptedException e) { |
| 671 | } |
| 672 | now = SystemClock.uptimeMillis(); |
| 673 | } |
| 674 | mLastLockTime = now; |
| 675 | mSurfaceLock.unlock(); |
| 676 | |
| 677 | return null; |
| 678 | } |
| 679 | |
| 680 | public void unlockCanvasAndPost(Canvas canvas) { |
Mitsuru Oshima | 424f668 | 2009-07-22 13:13:36 -0700 | [diff] [blame] | 681 | if (mCanvasScaled) { |
Mitsuru Oshima | 34bf2ee | 2009-07-17 09:57:28 -0700 | [diff] [blame] | 682 | canvas.restoreToCount(mSaveCount); |
| 683 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 684 | mSurface.unlockCanvasAndPost(canvas); |
| 685 | mSurfaceLock.unlock(); |
| 686 | } |
| 687 | |
| 688 | public Surface getSurface() { |
| 689 | return mSurface; |
| 690 | } |
| 691 | |
| 692 | public Rect getSurfaceFrame() { |
| 693 | return mSurfaceFrame; |
| 694 | } |
| 695 | }; |
| 696 | } |