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| 1 | |
| 2 /* | |
| 3 * Copyright 2012 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #include "SkColorPriv.h" | |
| 11 #include "SkDebugCanvas.h" | |
| 12 #include "SkDrawCommand.h" | |
| 13 #include "SkDrawFilter.h" | |
| 14 #include "SkDevice.h" | |
| 15 #include "SkXfermode.h" | |
| 16 | |
| 17 #ifdef SK_BUILD_FOR_WIN | |
| 18 // iostream includes xlocale which generates warning 4530 because we're comp
iling without | |
| 19 // exceptions | |
| 20 #pragma warning(push) | |
| 21 #pragma warning(disable : 4530) | |
| 22 #endif | |
| 23 #include <iostream> | |
| 24 #ifdef SK_BUILD_FOR_WIN | |
| 25 #pragma warning(pop) | |
| 26 #endif | |
| 27 | |
| 28 static SkBitmap make_noconfig_bm(int width, int height) { | |
| 29 SkBitmap bm; | |
| 30 bm.setConfig(SkBitmap::kNo_Config, width, height); | |
| 31 return bm; | |
| 32 } | |
| 33 | |
| 34 SkDebugCanvas::SkDebugCanvas(int width, int height) | |
| 35 : INHERITED(make_noconfig_bm(width, height)) | |
| 36 , fOverdrawViz(false) | |
| 37 , fOverdrawFilter(NULL) | |
| 38 , fOutstandingSaveCount(0) { | |
| 39 // TODO(chudy): Free up memory from all draw commands in destructor. | |
| 40 fWidth = width; | |
| 41 fHeight = height; | |
| 42 // do we need fBm anywhere? | |
| 43 fBm.setConfig(SkBitmap::kNo_Config, fWidth, fHeight); | |
| 44 fFilter = false; | |
| 45 fIndex = 0; | |
| 46 fUserMatrix.reset(); | |
| 47 } | |
| 48 | |
| 49 SkDebugCanvas::~SkDebugCanvas() { | |
| 50 fCommandVector.deleteAll(); | |
| 51 SkSafeUnref(fOverdrawFilter); | |
| 52 } | |
| 53 | |
| 54 void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) { | |
| 55 fCommandVector.push(command); | |
| 56 } | |
| 57 | |
| 58 void SkDebugCanvas::draw(SkCanvas* canvas) { | |
| 59 if(!fCommandVector.isEmpty()) { | |
| 60 for (int i = 0; i < fCommandVector.count(); i++) { | |
| 61 if (fCommandVector[i]->isVisible()) { | |
| 62 fCommandVector[i]->execute(canvas); | |
| 63 } | |
| 64 } | |
| 65 } | |
| 66 fIndex = fCommandVector.count() - 1; | |
| 67 } | |
| 68 | |
| 69 void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) { | |
| 70 canvas->concat(fUserMatrix); | |
| 71 } | |
| 72 | |
| 73 int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) { | |
| 74 SkBitmap bitmap; | |
| 75 bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); | |
| 76 bitmap.allocPixels(); | |
| 77 | |
| 78 SkCanvas canvas(bitmap); | |
| 79 canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y)); | |
| 80 applyUserTransform(&canvas); | |
| 81 | |
| 82 int layer = 0; | |
| 83 SkColor prev = bitmap.getColor(0,0); | |
| 84 for (int i = 0; i < index; i++) { | |
| 85 if (fCommandVector[i]->isVisible()) { | |
| 86 fCommandVector[i]->execute(&canvas); | |
| 87 } | |
| 88 if (prev != bitmap.getColor(0,0)) { | |
| 89 layer = i; | |
| 90 } | |
| 91 prev = bitmap.getColor(0,0); | |
| 92 } | |
| 93 return layer; | |
| 94 } | |
| 95 | |
| 96 static SkPMColor OverdrawXferModeProc(SkPMColor src, SkPMColor dst) { | |
| 97 // This table encodes the color progression of the overdraw visualization | |
| 98 static const SkPMColor gTable[] = { | |
| 99 SkPackARGB32(0x00, 0x00, 0x00, 0x00), | |
| 100 SkPackARGB32(0xFF, 128, 158, 255), | |
| 101 SkPackARGB32(0xFF, 170, 185, 212), | |
| 102 SkPackARGB32(0xFF, 213, 195, 170), | |
| 103 SkPackARGB32(0xFF, 255, 192, 127), | |
| 104 SkPackARGB32(0xFF, 255, 185, 85), | |
| 105 SkPackARGB32(0xFF, 255, 165, 42), | |
| 106 SkPackARGB32(0xFF, 255, 135, 0), | |
| 107 SkPackARGB32(0xFF, 255, 95, 0), | |
| 108 SkPackARGB32(0xFF, 255, 50, 0), | |
| 109 SkPackARGB32(0xFF, 255, 0, 0) | |
| 110 }; | |
| 111 | |
| 112 for (size_t i = 0; i < SK_ARRAY_COUNT(gTable)-1; ++i) { | |
| 113 if (gTable[i] == dst) { | |
| 114 return gTable[i+1]; | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 return gTable[SK_ARRAY_COUNT(gTable)-1]; | |
| 119 } | |
| 120 | |
| 121 // The OverdrawFilter modifies every paint to use an SkProcXfermode which | |
| 122 // in turn invokes OverdrawXferModeProc | |
| 123 class OverdrawFilter : public SkDrawFilter { | |
| 124 public: | |
| 125 OverdrawFilter() { | |
| 126 fXferMode = new SkProcXfermode(OverdrawXferModeProc); | |
| 127 } | |
| 128 | |
| 129 virtual ~OverdrawFilter() { | |
| 130 delete fXferMode; | |
| 131 } | |
| 132 | |
| 133 virtual bool filter(SkPaint* p, Type) SK_OVERRIDE { | |
| 134 p->setXfermode(fXferMode); | |
| 135 return true; | |
| 136 } | |
| 137 | |
| 138 protected: | |
| 139 SkXfermode* fXferMode; | |
| 140 | |
| 141 private: | |
| 142 typedef SkDrawFilter INHERITED; | |
| 143 }; | |
| 144 | |
| 145 void SkDebugCanvas::drawTo(SkCanvas* canvas, int index) { | |
| 146 SkASSERT(!fCommandVector.isEmpty()); | |
| 147 SkASSERT(index < fCommandVector.count()); | |
| 148 int i; | |
| 149 | |
| 150 // This only works assuming the canvas and device are the same ones that | |
| 151 // were previously drawn into because they need to preserve all saves | |
| 152 // and restores. | |
| 153 if (fIndex < index) { | |
| 154 i = fIndex + 1; | |
| 155 } else { | |
| 156 for (int j = 0; j < fOutstandingSaveCount; j++) { | |
| 157 canvas->restore(); | |
| 158 } | |
| 159 i = 0; | |
| 160 canvas->clear(SK_ColorTRANSPARENT); | |
| 161 canvas->resetMatrix(); | |
| 162 SkRect rect = SkRect::MakeWH(SkIntToScalar(fWidth), | |
| 163 SkIntToScalar(fHeight)); | |
| 164 canvas->clipRect(rect, SkRegion::kReplace_Op ); | |
| 165 applyUserTransform(canvas); | |
| 166 fOutstandingSaveCount = 0; | |
| 167 | |
| 168 // The setting of the draw filter has to go here (rather than in | |
| 169 // SkRasterWidget) due to the canvas restores this class performs. | |
| 170 // Since the draw filter is stored in the layer stack if we | |
| 171 // call setDrawFilter on anything but the root layer odd things happen | |
| 172 if (fOverdrawViz) { | |
| 173 if (NULL == fOverdrawFilter) { | |
| 174 fOverdrawFilter = new OverdrawFilter; | |
| 175 } | |
| 176 | |
| 177 if (fOverdrawFilter != canvas->getDrawFilter()) { | |
| 178 canvas->setDrawFilter(fOverdrawFilter); | |
| 179 } | |
| 180 } else { | |
| 181 canvas->setDrawFilter(NULL); | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 for (; i <= index; i++) { | |
| 186 if (i == index && fFilter) { | |
| 187 SkPaint p; | |
| 188 p.setColor(0xAAFFFFFF); | |
| 189 canvas->save(); | |
| 190 canvas->resetMatrix(); | |
| 191 SkRect mask; | |
| 192 mask.set(SkIntToScalar(0), SkIntToScalar(0), | |
| 193 SkIntToScalar(fWidth), SkIntToScalar(fHeight)); | |
| 194 canvas->clipRect(mask, SkRegion::kReplace_Op, false); | |
| 195 canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0), | |
| 196 SkIntToScalar(fWidth), SkIntToScalar(fHeight), p); | |
| 197 canvas->restore(); | |
| 198 } | |
| 199 | |
| 200 if (fCommandVector[i]->isVisible()) { | |
| 201 fCommandVector[i]->execute(canvas); | |
| 202 fCommandVector[i]->trackSaveState(&fOutstandingSaveCount); | |
| 203 } | |
| 204 } | |
| 205 fMatrix = canvas->getTotalMatrix(); | |
| 206 fClip = canvas->getTotalClip().getBounds(); | |
| 207 fIndex = index; | |
| 208 } | |
| 209 | |
| 210 void SkDebugCanvas::deleteDrawCommandAt(int index) { | |
| 211 SkASSERT(index < fCommandVector.count()); | |
| 212 delete fCommandVector[index]; | |
| 213 fCommandVector.remove(index); | |
| 214 } | |
| 215 | |
| 216 SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { | |
| 217 SkASSERT(index < fCommandVector.count()); | |
| 218 return fCommandVector[index]; | |
| 219 } | |
| 220 | |
| 221 void SkDebugCanvas::setDrawCommandAt(int index, SkDrawCommand* command) { | |
| 222 SkASSERT(index < fCommandVector.count()); | |
| 223 delete fCommandVector[index]; | |
| 224 fCommandVector[index] = command; | |
| 225 } | |
| 226 | |
| 227 SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) { | |
| 228 SkASSERT(index < fCommandVector.count()); | |
| 229 return fCommandVector[index]->Info(); | |
| 230 } | |
| 231 | |
| 232 bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { | |
| 233 SkASSERT(index < fCommandVector.count()); | |
| 234 return fCommandVector[index]->isVisible(); | |
| 235 } | |
| 236 | |
| 237 const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { | |
| 238 return fCommandVector; | |
| 239 } | |
| 240 | |
| 241 SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() { | |
| 242 return fCommandVector; | |
| 243 } | |
| 244 | |
| 245 // TODO(chudy): Free command string memory. | |
| 246 SkTArray<SkString>* SkDebugCanvas::getDrawCommandsAsStrings() const { | |
| 247 SkTArray<SkString>* commandString = new SkTArray<SkString>(fCommandVector.co
unt()); | |
| 248 if (!fCommandVector.isEmpty()) { | |
| 249 for (int i = 0; i < fCommandVector.count(); i ++) { | |
| 250 commandString->push_back() = fCommandVector[i]->toString(); | |
| 251 } | |
| 252 } | |
| 253 return commandString; | |
| 254 } | |
| 255 | |
| 256 void SkDebugCanvas::toggleFilter(bool toggle) { | |
| 257 fFilter = toggle; | |
| 258 } | |
| 259 | |
| 260 void SkDebugCanvas::clear(SkColor color) { | |
| 261 addDrawCommand(new Clear(color)); | |
| 262 } | |
| 263 | |
| 264 bool SkDebugCanvas::clipPath(const SkPath& path, SkRegion::Op op, bool doAA) { | |
| 265 addDrawCommand(new ClipPath(path, op, doAA)); | |
| 266 return true; | |
| 267 } | |
| 268 | |
| 269 bool SkDebugCanvas::clipRect(const SkRect& rect, SkRegion::Op op, bool doAA) { | |
| 270 addDrawCommand(new ClipRect(rect, op, doAA)); | |
| 271 return true; | |
| 272 } | |
| 273 | |
| 274 bool SkDebugCanvas::clipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA)
{ | |
| 275 addDrawCommand(new ClipRRect(rrect, op, doAA)); | |
| 276 return true; | |
| 277 } | |
| 278 | |
| 279 bool SkDebugCanvas::clipRegion(const SkRegion& region, SkRegion::Op op) { | |
| 280 addDrawCommand(new ClipRegion(region, op)); | |
| 281 return true; | |
| 282 } | |
| 283 | |
| 284 bool SkDebugCanvas::concat(const SkMatrix& matrix) { | |
| 285 addDrawCommand(new Concat(matrix)); | |
| 286 return true; | |
| 287 } | |
| 288 | |
| 289 void SkDebugCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar left, | |
| 290 SkScalar top, const SkPaint* paint = NULL) { | |
| 291 addDrawCommand(new DrawBitmap(bitmap, left, top, paint)); | |
| 292 } | |
| 293 | |
| 294 void SkDebugCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, | |
| 295 const SkRect* src, const SkRect& dst, const SkPaint* paint) { | |
| 296 addDrawCommand(new DrawBitmapRect(bitmap, src, dst, paint)); | |
| 297 } | |
| 298 | |
| 299 void SkDebugCanvas::drawBitmapMatrix(const SkBitmap& bitmap, | |
| 300 const SkMatrix& matrix, const SkPaint* paint) { | |
| 301 addDrawCommand(new DrawBitmapMatrix(bitmap, matrix, paint)); | |
| 302 } | |
| 303 | |
| 304 void SkDebugCanvas::drawBitmapNine(const SkBitmap& bitmap, | |
| 305 const SkIRect& center, const SkRect& dst, const SkPaint* paint) { | |
| 306 addDrawCommand(new DrawBitmapNine(bitmap, center, dst, paint)); | |
| 307 } | |
| 308 | |
| 309 void SkDebugCanvas::drawData(const void* data, size_t length) { | |
| 310 addDrawCommand(new DrawData(data, length)); | |
| 311 } | |
| 312 | |
| 313 void SkDebugCanvas::beginCommentGroup(const char* description) { | |
| 314 addDrawCommand(new BeginCommentGroup(description)); | |
| 315 } | |
| 316 | |
| 317 void SkDebugCanvas::addComment(const char* kywd, const char* value) { | |
| 318 addDrawCommand(new Comment(kywd, value)); | |
| 319 } | |
| 320 | |
| 321 void SkDebugCanvas::endCommentGroup() { | |
| 322 addDrawCommand(new EndCommentGroup()); | |
| 323 } | |
| 324 | |
| 325 void SkDebugCanvas::drawOval(const SkRect& oval, const SkPaint& paint) { | |
| 326 addDrawCommand(new DrawOval(oval, paint)); | |
| 327 } | |
| 328 | |
| 329 void SkDebugCanvas::drawPaint(const SkPaint& paint) { | |
| 330 addDrawCommand(new DrawPaint(paint)); | |
| 331 } | |
| 332 | |
| 333 void SkDebugCanvas::drawPath(const SkPath& path, const SkPaint& paint) { | |
| 334 addDrawCommand(new DrawPath(path, paint)); | |
| 335 } | |
| 336 | |
| 337 void SkDebugCanvas::drawPicture(SkPicture& picture) { | |
| 338 addDrawCommand(new DrawPicture(picture)); | |
| 339 } | |
| 340 | |
| 341 void SkDebugCanvas::drawPoints(PointMode mode, size_t count, | |
| 342 const SkPoint pts[], const SkPaint& paint) { | |
| 343 addDrawCommand(new DrawPoints(mode, count, pts, paint)); | |
| 344 } | |
| 345 | |
| 346 void SkDebugCanvas::drawPosText(const void* text, size_t byteLength, | |
| 347 const SkPoint pos[], const SkPaint& paint) { | |
| 348 addDrawCommand(new DrawPosText(text, byteLength, pos, paint)); | |
| 349 } | |
| 350 | |
| 351 void SkDebugCanvas::drawPosTextH(const void* text, size_t byteLength, | |
| 352 const SkScalar xpos[], SkScalar constY, const SkPaint& paint) { | |
| 353 addDrawCommand(new DrawPosTextH(text, byteLength, xpos, constY, paint)); | |
| 354 } | |
| 355 | |
| 356 void SkDebugCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { | |
| 357 // NOTE(chudy): Messing up when renamed to DrawRect... Why? | |
| 358 addDrawCommand(new DrawRectC(rect, paint)); | |
| 359 } | |
| 360 | |
| 361 void SkDebugCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { | |
| 362 addDrawCommand(new DrawRRect(rrect, paint)); | |
| 363 } | |
| 364 | |
| 365 void SkDebugCanvas::drawSprite(const SkBitmap& bitmap, int left, int top, | |
| 366 const SkPaint* paint = NULL) { | |
| 367 addDrawCommand(new DrawSprite(bitmap, left, top, paint)); | |
| 368 } | |
| 369 | |
| 370 void SkDebugCanvas::drawText(const void* text, size_t byteLength, SkScalar x, | |
| 371 SkScalar y, const SkPaint& paint) { | |
| 372 addDrawCommand(new DrawTextC(text, byteLength, x, y, paint)); | |
| 373 } | |
| 374 | |
| 375 void SkDebugCanvas::drawTextOnPath(const void* text, size_t byteLength, | |
| 376 const SkPath& path, const SkMatrix* matrix, const SkPaint& paint) { | |
| 377 addDrawCommand(new DrawTextOnPath(text, byteLength, path, matrix, paint)); | |
| 378 } | |
| 379 | |
| 380 void SkDebugCanvas::drawVertices(VertexMode vmode, int vertexCount, | |
| 381 const SkPoint vertices[], const SkPoint texs[], const SkColor colors[], | |
| 382 SkXfermode*, const uint16_t indices[], int indexCount, | |
| 383 const SkPaint& paint) { | |
| 384 addDrawCommand(new DrawVertices(vmode, vertexCount, vertices, texs, colors, | |
| 385 NULL, indices, indexCount, paint)); | |
| 386 } | |
| 387 | |
| 388 void SkDebugCanvas::restore() { | |
| 389 addDrawCommand(new Restore()); | |
| 390 } | |
| 391 | |
| 392 bool SkDebugCanvas::rotate(SkScalar degrees) { | |
| 393 addDrawCommand(new Rotate(degrees)); | |
| 394 return true; | |
| 395 } | |
| 396 | |
| 397 int SkDebugCanvas::save(SaveFlags flags) { | |
| 398 addDrawCommand(new Save(flags)); | |
| 399 return true; | |
| 400 } | |
| 401 | |
| 402 int SkDebugCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, | |
| 403 SaveFlags flags) { | |
| 404 addDrawCommand(new SaveLayer(bounds, paint, flags)); | |
| 405 return true; | |
| 406 } | |
| 407 | |
| 408 bool SkDebugCanvas::scale(SkScalar sx, SkScalar sy) { | |
| 409 addDrawCommand(new Scale(sx, sy)); | |
| 410 return true; | |
| 411 } | |
| 412 | |
| 413 void SkDebugCanvas::setMatrix(const SkMatrix& matrix) { | |
| 414 addDrawCommand(new SetMatrix(matrix)); | |
| 415 } | |
| 416 | |
| 417 bool SkDebugCanvas::skew(SkScalar sx, SkScalar sy) { | |
| 418 addDrawCommand(new Skew(sx, sy)); | |
| 419 return true; | |
| 420 } | |
| 421 | |
| 422 bool SkDebugCanvas::translate(SkScalar dx, SkScalar dy) { | |
| 423 addDrawCommand(new Translate(dx, dy)); | |
| 424 return true; | |
| 425 } | |
| 426 | |
| 427 void SkDebugCanvas::toggleCommand(int index, bool toggle) { | |
| 428 SkASSERT(index < fCommandVector.count()); | |
| 429 fCommandVector[index]->setVisible(toggle); | |
| 430 } | |
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Chromium Code Reviews
Issue 16638014:
Expose debugger backend classes externally. (Closed)
Base URL: https://skia.googlecode.com/svn/trunk