Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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.ddm; |
| 18 | |
| 19 | import android.opengl.GLUtils; |
| 20 | import android.util.Log; |
| 21 | import android.view.View; |
| 22 | import android.view.ViewDebug; |
| 23 | import android.view.ViewRootImpl; |
| 24 | import android.view.WindowManagerGlobal; |
| 25 | |
| 26 | import org.apache.harmony.dalvik.ddmc.Chunk; |
| 27 | import org.apache.harmony.dalvik.ddmc.ChunkHandler; |
| 28 | import org.apache.harmony.dalvik.ddmc.DdmServer; |
| 29 | |
| 30 | import java.io.BufferedWriter; |
| 31 | import java.io.ByteArrayOutputStream; |
| 32 | import java.io.DataOutputStream; |
| 33 | import java.io.IOException; |
| 34 | import java.io.OutputStreamWriter; |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 35 | import java.lang.reflect.Method; |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 36 | import java.nio.BufferUnderflowException; |
| 37 | import java.nio.ByteBuffer; |
| 38 | |
| 39 | /** |
| 40 | * Handle various requests related to profiling / debugging of the view system. |
| 41 | * Support for these features are advertised via {@link DdmHandleHello}. |
| 42 | */ |
| 43 | public class DdmHandleViewDebug extends ChunkHandler { |
| 44 | /** Enable/Disable tracing of OpenGL calls. */ |
| 45 | public static final int CHUNK_VUGL = type("VUGL"); |
| 46 | |
| 47 | /** List {@link ViewRootImpl}'s of this process. */ |
| 48 | private static final int CHUNK_VULW = type("VULW"); |
| 49 | |
| 50 | /** Operation on view root, first parameter in packet should be one of VURT_* constants */ |
| 51 | private static final int CHUNK_VURT = type("VURT"); |
| 52 | |
| 53 | /** Dump view hierarchy. */ |
| 54 | private static final int VURT_DUMP_HIERARCHY = 1; |
| 55 | |
| 56 | /** Capture View Layers. */ |
| 57 | private static final int VURT_CAPTURE_LAYERS = 2; |
| 58 | |
| 59 | /** |
| 60 | * Generic View Operation, first parameter in the packet should be one of the |
| 61 | * VUOP_* constants below. |
| 62 | */ |
| 63 | private static final int CHUNK_VUOP = type("VUOP"); |
| 64 | |
| 65 | /** Capture View. */ |
| 66 | private static final int VUOP_CAPTURE_VIEW = 1; |
| 67 | |
| 68 | /** Obtain the Display List corresponding to the view. */ |
| 69 | private static final int VUOP_DUMP_DISPLAYLIST = 2; |
| 70 | |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 71 | /** Profile a view. */ |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 72 | private static final int VUOP_PROFILE_VIEW = 3; |
| 73 | |
| 74 | /** Invoke a method on the view. */ |
| 75 | private static final int VUOP_INVOKE_VIEW_METHOD = 4; |
| 76 | |
| 77 | /** Set layout parameter. */ |
| 78 | private static final int VUOP_SET_LAYOUT_PARAMETER = 5; |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 79 | |
| 80 | /** Error code indicating operation specified in chunk is invalid. */ |
| 81 | private static final int ERR_INVALID_OP = -1; |
| 82 | |
| 83 | /** Error code indicating that the parameters are invalid. */ |
| 84 | private static final int ERR_INVALID_PARAM = -2; |
| 85 | |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 86 | /** Error code indicating an exception while performing operation. */ |
| 87 | private static final int ERR_EXCEPTION = -3; |
| 88 | |
| 89 | private static final String TAG = "DdmViewDebug"; |
| 90 | |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 91 | private static final DdmHandleViewDebug sInstance = new DdmHandleViewDebug(); |
| 92 | |
| 93 | /** singleton, do not instantiate. */ |
| 94 | private DdmHandleViewDebug() {} |
| 95 | |
| 96 | public static void register() { |
| 97 | DdmServer.registerHandler(CHUNK_VUGL, sInstance); |
| 98 | DdmServer.registerHandler(CHUNK_VULW, sInstance); |
| 99 | DdmServer.registerHandler(CHUNK_VURT, sInstance); |
| 100 | DdmServer.registerHandler(CHUNK_VUOP, sInstance); |
| 101 | } |
| 102 | |
| 103 | @Override |
| 104 | public void connected() { |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public void disconnected() { |
| 109 | } |
| 110 | |
| 111 | @Override |
| 112 | public Chunk handleChunk(Chunk request) { |
| 113 | int type = request.type; |
| 114 | |
| 115 | if (type == CHUNK_VUGL) { |
| 116 | return handleOpenGlTrace(request); |
| 117 | } else if (type == CHUNK_VULW) { |
| 118 | return listWindows(); |
| 119 | } |
| 120 | |
| 121 | ByteBuffer in = wrapChunk(request); |
| 122 | int op = in.getInt(); |
| 123 | |
| 124 | View rootView = getRootView(in); |
| 125 | if (rootView == null) { |
| 126 | return createFailChunk(ERR_INVALID_PARAM, "Invalid View Root"); |
| 127 | } |
| 128 | |
| 129 | if (type == CHUNK_VURT) { |
| 130 | if (op == VURT_DUMP_HIERARCHY) |
| 131 | return dumpHierarchy(rootView, in); |
| 132 | else if (op == VURT_CAPTURE_LAYERS) |
| 133 | return captureLayers(rootView); |
| 134 | else |
| 135 | return createFailChunk(ERR_INVALID_OP, "Unknown view root operation: " + op); |
| 136 | } |
| 137 | |
| 138 | final View targetView = getTargetView(rootView, in); |
| 139 | if (targetView == null) { |
| 140 | return createFailChunk(ERR_INVALID_PARAM, "Invalid target view"); |
| 141 | } |
| 142 | |
| 143 | if (type == CHUNK_VUOP) { |
| 144 | switch (op) { |
| 145 | case VUOP_CAPTURE_VIEW: |
| 146 | return captureView(rootView, targetView); |
| 147 | case VUOP_DUMP_DISPLAYLIST: |
| 148 | return dumpDisplayLists(rootView, targetView); |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 149 | case VUOP_PROFILE_VIEW: |
| 150 | return profileView(rootView, targetView); |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 151 | case VUOP_INVOKE_VIEW_METHOD: |
| 152 | return invokeViewMethod(rootView, targetView, in); |
| 153 | case VUOP_SET_LAYOUT_PARAMETER: |
| 154 | return setLayoutParameter(rootView, targetView, in); |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 155 | default: |
| 156 | return createFailChunk(ERR_INVALID_OP, "Unknown view operation: " + op); |
| 157 | } |
| 158 | } else { |
| 159 | throw new RuntimeException("Unknown packet " + ChunkHandler.name(type)); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | private Chunk handleOpenGlTrace(Chunk request) { |
| 164 | ByteBuffer in = wrapChunk(request); |
| 165 | GLUtils.setTracingLevel(in.getInt()); |
| 166 | return null; // empty response |
| 167 | } |
| 168 | |
| 169 | /** Returns the list of windows owned by this client. */ |
| 170 | private Chunk listWindows() { |
| 171 | String[] windowNames = WindowManagerGlobal.getInstance().getViewRootNames(); |
| 172 | |
| 173 | int responseLength = 4; // # of windows |
| 174 | for (String name : windowNames) { |
| 175 | responseLength += 4; // length of next window name |
| 176 | responseLength += name.length() * 2; // window name |
| 177 | } |
| 178 | |
| 179 | ByteBuffer out = ByteBuffer.allocate(responseLength); |
| 180 | out.order(ChunkHandler.CHUNK_ORDER); |
| 181 | |
| 182 | out.putInt(windowNames.length); |
| 183 | for (String name : windowNames) { |
| 184 | out.putInt(name.length()); |
| 185 | putString(out, name); |
| 186 | } |
| 187 | |
| 188 | return new Chunk(CHUNK_VULW, out); |
| 189 | } |
| 190 | |
| 191 | private View getRootView(ByteBuffer in) { |
| 192 | try { |
| 193 | int viewRootNameLength = in.getInt(); |
| 194 | String viewRootName = getString(in, viewRootNameLength); |
| 195 | return WindowManagerGlobal.getInstance().getRootView(viewRootName); |
| 196 | } catch (BufferUnderflowException e) { |
| 197 | return null; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | private View getTargetView(View root, ByteBuffer in) { |
| 202 | int viewLength; |
| 203 | String viewName; |
| 204 | |
| 205 | try { |
| 206 | viewLength = in.getInt(); |
| 207 | viewName = getString(in, viewLength); |
| 208 | } catch (BufferUnderflowException e) { |
| 209 | return null; |
| 210 | } |
| 211 | |
| 212 | return ViewDebug.findView(root, viewName); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * Returns the view hierarchy and/or view properties starting at the provided view. |
| 217 | * Based on the input options, the return data may include: |
| 218 | * - just the view hierarchy |
| 219 | * - view hierarchy & the properties for each of the views |
| 220 | * - just the view properties for a specific view. |
| 221 | * TODO: Currently this only returns views starting at the root, need to fix so that |
| 222 | * it can return properties of any view. |
| 223 | */ |
| 224 | private Chunk dumpHierarchy(View rootView, ByteBuffer in) { |
| 225 | boolean skipChildren = in.getInt() > 0; |
| 226 | boolean includeProperties = in.getInt() > 0; |
| 227 | |
| 228 | ByteArrayOutputStream b = new ByteArrayOutputStream(1024); |
| 229 | try { |
| 230 | ViewDebug.dump(rootView, skipChildren, includeProperties, b); |
| 231 | } catch (IOException e) { |
| 232 | return createFailChunk(1, "Unexpected error while obtaining view hierarchy: " |
| 233 | + e.getMessage()); |
| 234 | } |
| 235 | |
| 236 | byte[] data = b.toByteArray(); |
| 237 | return new Chunk(CHUNK_VURT, data, 0, data.length); |
| 238 | } |
| 239 | |
| 240 | /** Returns a buffer with region details & bitmap of every single view. */ |
| 241 | private Chunk captureLayers(View rootView) { |
| 242 | ByteArrayOutputStream b = new ByteArrayOutputStream(1024); |
| 243 | DataOutputStream dos = new DataOutputStream(b); |
| 244 | try { |
| 245 | ViewDebug.captureLayers(rootView, dos); |
| 246 | } catch (IOException e) { |
| 247 | return createFailChunk(1, "Unexpected error while obtaining view hierarchy: " |
| 248 | + e.getMessage()); |
| 249 | } finally { |
| 250 | try { |
| 251 | dos.close(); |
| 252 | } catch (IOException e) { |
| 253 | // ignore |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | byte[] data = b.toByteArray(); |
| 258 | return new Chunk(CHUNK_VURT, data, 0, data.length); |
| 259 | } |
| 260 | |
| 261 | private Chunk captureView(View rootView, View targetView) { |
| 262 | ByteArrayOutputStream b = new ByteArrayOutputStream(1024); |
| 263 | try { |
| 264 | ViewDebug.capture(rootView, b, targetView); |
| 265 | } catch (IOException e) { |
| 266 | return createFailChunk(1, "Unexpected error while capturing view: " |
| 267 | + e.getMessage()); |
| 268 | } |
| 269 | |
| 270 | byte[] data = b.toByteArray(); |
| 271 | return new Chunk(CHUNK_VUOP, data, 0, data.length); |
| 272 | } |
| 273 | |
| 274 | /** Returns the display lists corresponding to the provided view. */ |
| 275 | private Chunk dumpDisplayLists(final View rootView, final View targetView) { |
| 276 | rootView.post(new Runnable() { |
| 277 | @Override |
| 278 | public void run() { |
| 279 | ViewDebug.outputDisplayList(rootView, targetView); |
| 280 | } |
| 281 | }); |
| 282 | return null; |
| 283 | } |
| 284 | |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 285 | /** |
| 286 | * Invokes provided method on the view. |
| 287 | * The method name and its arguments are passed in as inputs via the byte buffer. |
| 288 | * The buffer contains:<ol> |
| 289 | * <li> len(method name) </li> |
| 290 | * <li> method name </li> |
| 291 | * <li> # of args </li> |
| 292 | * <li> arguments: Each argument comprises of a type specifier followed by the actual argument. |
| 293 | * The type specifier is a single character as used in JNI: |
| 294 | * (Z - boolean, B - byte, C - char, S - short, I - int, J - long, |
| 295 | * F - float, D - double). <p> |
| 296 | * The type specifier is followed by the actual value of argument. |
| 297 | * Booleans are encoded via bytes with 0 indicating false.</li> |
| 298 | * </ol> |
| 299 | * Methods that take no arguments need only specify the method name. |
| 300 | */ |
| 301 | private Chunk invokeViewMethod(final View rootView, final View targetView, ByteBuffer in) { |
| 302 | int l = in.getInt(); |
| 303 | String methodName = getString(in, l); |
| 304 | |
| 305 | Class<?>[] argTypes; |
| 306 | Object[] args; |
| 307 | if (!in.hasRemaining()) { |
| 308 | argTypes = new Class<?>[0]; |
| 309 | args = new Object[0]; |
| 310 | } else { |
| 311 | int nArgs = in.getInt(); |
| 312 | |
| 313 | argTypes = new Class<?>[nArgs]; |
| 314 | args = new Object[nArgs]; |
| 315 | |
| 316 | for (int i = 0; i < nArgs; i++) { |
| 317 | char c = in.getChar(); |
| 318 | switch (c) { |
| 319 | case 'Z': |
| 320 | argTypes[i] = boolean.class; |
| 321 | args[i] = in.get() == 0 ? false : true; |
| 322 | break; |
| 323 | case 'B': |
| 324 | argTypes[i] = byte.class; |
| 325 | args[i] = in.get(); |
| 326 | break; |
| 327 | case 'C': |
| 328 | argTypes[i] = char.class; |
| 329 | args[i] = in.getChar(); |
| 330 | break; |
| 331 | case 'S': |
| 332 | argTypes[i] = short.class; |
| 333 | args[i] = in.getShort(); |
| 334 | break; |
| 335 | case 'I': |
| 336 | argTypes[i] = int.class; |
| 337 | args[i] = in.getInt(); |
| 338 | break; |
| 339 | case 'J': |
| 340 | argTypes[i] = long.class; |
| 341 | args[i] = in.getLong(); |
| 342 | break; |
| 343 | case 'F': |
| 344 | argTypes[i] = float.class; |
| 345 | args[i] = in.getFloat(); |
| 346 | break; |
| 347 | case 'D': |
| 348 | argTypes[i] = double.class; |
| 349 | args[i] = in.getDouble(); |
| 350 | break; |
| 351 | default: |
| 352 | Log.e(TAG, "arg " + i + ", unrecognized type: " + c); |
| 353 | return createFailChunk(ERR_INVALID_PARAM, |
| 354 | "Unsupported parameter type (" + c + ") to invoke view method."); |
| 355 | } |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | Method method = null; |
| 360 | try { |
| 361 | method = targetView.getClass().getMethod(methodName, argTypes); |
| 362 | } catch (NoSuchMethodException e) { |
| 363 | Log.e(TAG, "No such method: " + e.getMessage()); |
| 364 | return createFailChunk(ERR_INVALID_PARAM, |
| 365 | "No such method: " + e.getMessage()); |
| 366 | } |
| 367 | |
| 368 | try { |
| 369 | ViewDebug.invokeViewMethod(targetView, method, args); |
| 370 | } catch (Exception e) { |
| 371 | Log.e(TAG, "Exception while invoking method: " + e.getCause().getMessage()); |
| 372 | String msg = e.getCause().getMessage(); |
| 373 | if (msg == null) { |
| 374 | msg = e.getCause().toString(); |
| 375 | } |
| 376 | return createFailChunk(ERR_EXCEPTION, msg); |
| 377 | } |
| 378 | |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 379 | return null; |
| 380 | } |
| 381 | |
Siva Velusamy | f9455fa | 2013-01-17 18:01:52 -0800 | [diff] [blame] | 382 | private Chunk setLayoutParameter(final View rootView, final View targetView, ByteBuffer in) { |
| 383 | int l = in.getInt(); |
| 384 | String param = getString(in, l); |
| 385 | int value = in.getInt(); |
| 386 | try { |
| 387 | ViewDebug.setLayoutParameter(targetView, param, value); |
| 388 | } catch (Exception e) { |
| 389 | Log.e(TAG, "Exception setting layout parameter: " + e); |
| 390 | return createFailChunk(ERR_EXCEPTION, "Error accessing field " |
| 391 | + param + ":" + e.getMessage()); |
| 392 | } |
| 393 | |
Siva Velusamy | 945bfb6 | 2013-01-06 16:03:12 -0800 | [diff] [blame] | 394 | return null; |
| 395 | } |
| 396 | |
| 397 | /** Profiles provided view. */ |
| 398 | private Chunk profileView(View rootView, final View targetView) { |
| 399 | ByteArrayOutputStream b = new ByteArrayOutputStream(32 * 1024); |
| 400 | BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(b), 32 * 1024); |
| 401 | try { |
| 402 | ViewDebug.profileViewAndChildren(targetView, bw); |
| 403 | } catch (IOException e) { |
| 404 | return createFailChunk(1, "Unexpected error while profiling view: " + e.getMessage()); |
| 405 | } finally { |
| 406 | try { |
| 407 | bw.close(); |
| 408 | } catch (IOException e) { |
| 409 | // ignore |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | byte[] data = b.toByteArray(); |
| 414 | return new Chunk(CHUNK_VUOP, data, 0, data.length); |
| 415 | } |
| 416 | } |