1 2/* 3 * Copyright 2011 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#include "SkDumpCanvas.h" 10 11#ifdef SK_DEVELOPER 12#include "SkPicture.h" 13#include "SkPixelRef.h" 14#include "SkRRect.h" 15#include "SkString.h" 16#include <stdarg.h> 17#include <stdio.h> 18 19// needed just to know that these are all subclassed from SkFlattenable 20#include "SkShader.h" 21#include "SkPathEffect.h" 22#include "SkXfermode.h" 23#include "SkColorFilter.h" 24#include "SkPathEffect.h" 25#include "SkMaskFilter.h" 26 27static void toString(const SkRect& r, SkString* str) { 28 str->appendf("[%g,%g %g:%g]", 29 SkScalarToFloat(r.fLeft), SkScalarToFloat(r.fTop), 30 SkScalarToFloat(r.width()), SkScalarToFloat(r.height())); 31} 32 33static void toString(const SkIRect& r, SkString* str) { 34 str->appendf("[%d,%d %d:%d]", r.fLeft, r.fTop, r.width(), r.height()); 35} 36 37static void toString(const SkRRect& rrect, SkString* str) { 38 SkRect r = rrect.getBounds(); 39 str->appendf("[%g,%g %g:%g]", 40 SkScalarToFloat(r.fLeft), SkScalarToFloat(r.fTop), 41 SkScalarToFloat(r.width()), SkScalarToFloat(r.height())); 42 if (rrect.isOval()) { 43 str->append("()"); 44 } else if (rrect.isSimple()) { 45 const SkVector& rad = rrect.getSimpleRadii(); 46 str->appendf("(%g,%g)", rad.x(), rad.y()); 47 } else if (rrect.isComplex()) { 48 SkVector radii[4] = { 49 rrect.radii(SkRRect::kUpperLeft_Corner), 50 rrect.radii(SkRRect::kUpperRight_Corner), 51 rrect.radii(SkRRect::kLowerRight_Corner), 52 rrect.radii(SkRRect::kLowerLeft_Corner), 53 }; 54 str->appendf("(%g,%g %g,%g %g,%g %g,%g)", 55 radii[0].x(), radii[0].y(), 56 radii[1].x(), radii[1].y(), 57 radii[2].x(), radii[2].y(), 58 radii[3].x(), radii[3].y()); 59 } 60} 61 62static void dumpVerbs(const SkPath& path, SkString* str) { 63 SkPath::Iter iter(path, false); 64 SkPoint pts[4]; 65 for (;;) { 66 switch (iter.next(pts, false)) { 67 case SkPath::kMove_Verb: 68 str->appendf(" M%g,%g", pts[0].fX, pts[0].fY); 69 break; 70 case SkPath::kLine_Verb: 71 str->appendf(" L%g,%g", pts[0].fX, pts[0].fY); 72 break; 73 case SkPath::kQuad_Verb: 74 str->appendf(" Q%g,%g,%g,%g", pts[1].fX, pts[1].fY, 75 pts[2].fX, pts[2].fY); 76 break; 77 case SkPath::kCubic_Verb: 78 str->appendf(" C%g,%g,%g,%g,%g,%g", pts[1].fX, pts[1].fY, 79 pts[2].fX, pts[2].fY, pts[3].fX, pts[3].fY); 80 break; 81 case SkPath::kClose_Verb: 82 str->append("X"); 83 break; 84 case SkPath::kDone_Verb: 85 return; 86 case SkPath::kConic_Verb: 87 SkASSERT(0); 88 break; 89 } 90 } 91} 92 93static void toString(const SkPath& path, SkString* str) { 94 if (path.isEmpty()) { 95 str->append("path:empty"); 96 } else { 97 toString(path.getBounds(), str); 98#if 1 99 SkString s; 100 dumpVerbs(path, &s); 101 str->append(s.c_str()); 102#endif 103 str->append("]"); 104 str->prepend("path:["); 105 } 106} 107 108static const char* toString(SkRegion::Op op) { 109 static const char* gOpNames[] = { 110 "DIFF", "SECT", "UNION", "XOR", "RDIFF", "REPLACE" 111 }; 112 return gOpNames[op]; 113} 114 115static void toString(const SkRegion& rgn, SkString* str) { 116 str->append("Region:["); 117 toString(rgn.getBounds(), str); 118 str->append("]"); 119 if (rgn.isComplex()) { 120 str->append(".complex"); 121 } 122} 123 124static const char* toString(SkCanvas::VertexMode vm) { 125 static const char* gVMNames[] = { 126 "TRIANGLES", "STRIP", "FAN" 127 }; 128 return gVMNames[vm]; 129} 130 131static const char* toString(SkCanvas::PointMode pm) { 132 static const char* gPMNames[] = { 133 "POINTS", "LINES", "POLYGON" 134 }; 135 return gPMNames[pm]; 136} 137 138static void toString(const void* text, size_t byteLen, SkPaint::TextEncoding enc, 139 SkString* str) { 140 // FIXME: this code appears to be untested - and probably unused - and probably wrong 141 switch (enc) { 142 case SkPaint::kUTF8_TextEncoding: 143 str->appendf("\"%.*s\"%s", (int)SkTMax<size_t>(byteLen, 32), (const char*) text, 144 byteLen > 32 ? "..." : ""); 145 break; 146 case SkPaint::kUTF16_TextEncoding: 147 str->appendf("\"%.*ls\"%s", (int)SkTMax<size_t>(byteLen, 32), (const wchar_t*) text, 148 byteLen > 64 ? "..." : ""); 149 break; 150 case SkPaint::kUTF32_TextEncoding: 151 str->appendf("\"%.*ls\"%s", (int)SkTMax<size_t>(byteLen, 32), (const wchar_t*) text, 152 byteLen > 128 ? "..." : ""); 153 break; 154 case SkPaint::kGlyphID_TextEncoding: 155 str->append("<glyphs>"); 156 break; 157 158 default: 159 SkASSERT(false); 160 break; 161 } 162} 163 164/////////////////////////////////////////////////////////////////////////////// 165 166#define WIDE_OPEN 16384 167 168SkDumpCanvas::SkDumpCanvas(Dumper* dumper) : INHERITED(WIDE_OPEN, WIDE_OPEN) { 169 fNestLevel = 0; 170 SkSafeRef(dumper); 171 fDumper = dumper; 172} 173 174SkDumpCanvas::~SkDumpCanvas() { 175 SkSafeUnref(fDumper); 176} 177 178void SkDumpCanvas::dump(Verb verb, const SkPaint* paint, 179 const char format[], ...) { 180 static const size_t BUFFER_SIZE = 1024; 181 182 char buffer[BUFFER_SIZE]; 183 va_list args; 184 va_start(args, format); 185 vsnprintf(buffer, BUFFER_SIZE, format, args); 186 va_end(args); 187 188 if (fDumper) { 189 fDumper->dump(this, verb, buffer, paint); 190 } 191} 192 193/////////////////////////////////////////////////////////////////////////////// 194 195void SkDumpCanvas::willSave(SaveFlags flags) { 196 this->dump(kSave_Verb, NULL, "save(0x%X)", flags); 197 this->INHERITED::willSave(flags); 198} 199 200SkCanvas::SaveLayerStrategy SkDumpCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint, 201 SaveFlags flags) { 202 SkString str; 203 str.printf("saveLayer(0x%X)", flags); 204 if (bounds) { 205 str.append(" bounds"); 206 toString(*bounds, &str); 207 } 208 if (paint) { 209 if (paint->getAlpha() != 0xFF) { 210 str.appendf(" alpha:0x%02X", paint->getAlpha()); 211 } 212 if (paint->getXfermode()) { 213 str.appendf(" xfermode:%p", paint->getXfermode()); 214 } 215 } 216 this->dump(kSave_Verb, paint, str.c_str()); 217 return this->INHERITED::willSaveLayer(bounds, paint, flags); 218} 219 220void SkDumpCanvas::willRestore() { 221 this->dump(kRestore_Verb, NULL, "restore"); 222 this->INHERITED::willRestore(); 223} 224 225void SkDumpCanvas::didConcat(const SkMatrix& matrix) { 226 SkString str; 227 228 switch (matrix.getType()) { 229 case SkMatrix::kTranslate_Mask: 230 this->dump(kMatrix_Verb, NULL, "translate(%g %g)", 231 SkScalarToFloat(matrix.getTranslateX()), 232 SkScalarToFloat(matrix.getTranslateY())); 233 break; 234 case SkMatrix::kScale_Mask: 235 this->dump(kMatrix_Verb, NULL, "scale(%g %g)", 236 SkScalarToFloat(matrix.getScaleX()), 237 SkScalarToFloat(matrix.getScaleY())); 238 break; 239 default: 240 matrix.toString(&str); 241 this->dump(kMatrix_Verb, NULL, "concat(%s)", str.c_str()); 242 break; 243 } 244 245 this->INHERITED::didConcat(matrix); 246} 247 248void SkDumpCanvas::didSetMatrix(const SkMatrix& matrix) { 249 SkString str; 250 matrix.toString(&str); 251 this->dump(kMatrix_Verb, NULL, "setMatrix(%s)", str.c_str()); 252 this->INHERITED::didSetMatrix(matrix); 253} 254 255/////////////////////////////////////////////////////////////////////////////// 256 257const char* SkDumpCanvas::EdgeStyleToAAString(ClipEdgeStyle edgeStyle) { 258 return kSoft_ClipEdgeStyle == edgeStyle ? "AA" : "BW"; 259} 260 261void SkDumpCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 262 SkString str; 263 toString(rect, &str); 264 this->dump(kClip_Verb, NULL, "clipRect(%s %s %s)", str.c_str(), toString(op), 265 EdgeStyleToAAString(edgeStyle)); 266 this->INHERITED::onClipRect(rect, op, edgeStyle); 267} 268 269void SkDumpCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 270 SkString str; 271 toString(rrect, &str); 272 this->dump(kClip_Verb, NULL, "clipRRect(%s %s %s)", str.c_str(), toString(op), 273 EdgeStyleToAAString(edgeStyle)); 274 this->INHERITED::onClipRRect(rrect, op, edgeStyle); 275} 276 277void SkDumpCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) { 278 SkString str; 279 toString(path, &str); 280 this->dump(kClip_Verb, NULL, "clipPath(%s %s %s)", str.c_str(), toString(op), 281 EdgeStyleToAAString(edgeStyle)); 282 this->INHERITED::onClipPath(path, op, edgeStyle); 283} 284 285void SkDumpCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) { 286 SkString str; 287 toString(deviceRgn, &str); 288 this->dump(kClip_Verb, NULL, "clipRegion(%s %s)", str.c_str(), 289 toString(op)); 290 this->INHERITED::onClipRegion(deviceRgn, op); 291} 292 293void SkDumpCanvas::onPushCull(const SkRect& cullRect) { 294 SkString str; 295 toString(cullRect, &str); 296 this->dump(kCull_Verb, NULL, "pushCull(%s)", str.c_str()); 297} 298 299void SkDumpCanvas::onPopCull() { 300 this->dump(kCull_Verb, NULL, "popCull()"); 301} 302/////////////////////////////////////////////////////////////////////////////// 303 304void SkDumpCanvas::drawPaint(const SkPaint& paint) { 305 this->dump(kDrawPaint_Verb, &paint, "drawPaint()"); 306} 307 308void SkDumpCanvas::drawPoints(PointMode mode, size_t count, 309 const SkPoint pts[], const SkPaint& paint) { 310 this->dump(kDrawPoints_Verb, &paint, "drawPoints(%s, %d)", toString(mode), 311 count); 312} 313 314void SkDumpCanvas::drawOval(const SkRect& rect, const SkPaint& paint) { 315 SkString str; 316 toString(rect, &str); 317 this->dump(kDrawOval_Verb, &paint, "drawOval(%s)", str.c_str()); 318} 319 320void SkDumpCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { 321 SkString str; 322 toString(rect, &str); 323 this->dump(kDrawRect_Verb, &paint, "drawRect(%s)", str.c_str()); 324} 325 326void SkDumpCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { 327 SkString str; 328 toString(rrect, &str); 329 this->dump(kDrawDRRect_Verb, &paint, "drawRRect(%s)", str.c_str()); 330} 331 332void SkDumpCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, 333 const SkPaint& paint) { 334 SkString str0, str1; 335 toString(outer, &str0); 336 toString(inner, &str0); 337 this->dump(kDrawRRect_Verb, &paint, "drawDRRect(%s,%s)", 338 str0.c_str(), str1.c_str()); 339} 340 341void SkDumpCanvas::drawPath(const SkPath& path, const SkPaint& paint) { 342 SkString str; 343 toString(path, &str); 344 this->dump(kDrawPath_Verb, &paint, "drawPath(%s)", str.c_str()); 345} 346 347void SkDumpCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y, 348 const SkPaint* paint) { 349 SkString str; 350 bitmap.toString(&str); 351 this->dump(kDrawBitmap_Verb, paint, "drawBitmap(%s %g %g)", str.c_str(), 352 SkScalarToFloat(x), SkScalarToFloat(y)); 353} 354 355void SkDumpCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src, 356 const SkRect& dst, const SkPaint* paint, 357 DrawBitmapRectFlags flags) { 358 SkString bs, rs; 359 bitmap.toString(&bs); 360 toString(dst, &rs); 361 // show the src-rect only if its not everything 362 if (src && (src->fLeft > 0 || src->fTop > 0 || 363 src->fRight < SkIntToScalar(bitmap.width()) || 364 src->fBottom < SkIntToScalar(bitmap.height()))) { 365 SkString ss; 366 toString(*src, &ss); 367 rs.prependf("%s ", ss.c_str()); 368 } 369 370 this->dump(kDrawBitmap_Verb, paint, "drawBitmapRectToRect(%s %s)", 371 bs.c_str(), rs.c_str()); 372} 373 374void SkDumpCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m, 375 const SkPaint* paint) { 376 SkString bs, ms; 377 bitmap.toString(&bs); 378 m.toString(&ms); 379 this->dump(kDrawBitmap_Verb, paint, "drawBitmapMatrix(%s %s)", 380 bs.c_str(), ms.c_str()); 381} 382 383void SkDumpCanvas::drawSprite(const SkBitmap& bitmap, int x, int y, 384 const SkPaint* paint) { 385 SkString str; 386 bitmap.toString(&str); 387 this->dump(kDrawBitmap_Verb, paint, "drawSprite(%s %d %d)", str.c_str(), 388 x, y); 389} 390 391void SkDumpCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, 392 const SkPaint& paint) { 393 SkString str; 394 toString(text, byteLength, paint.getTextEncoding(), &str); 395 this->dump(kDrawText_Verb, &paint, "drawText(%s [%d] %g %g)", str.c_str(), 396 byteLength, SkScalarToFloat(x), SkScalarToFloat(y)); 397} 398 399void SkDumpCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], 400 const SkPaint& paint) { 401 SkString str; 402 toString(text, byteLength, paint.getTextEncoding(), &str); 403 this->dump(kDrawText_Verb, &paint, "drawPosText(%s [%d] %g %g ...)", 404 str.c_str(), byteLength, SkScalarToFloat(pos[0].fX), 405 SkScalarToFloat(pos[0].fY)); 406} 407 408void SkDumpCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], 409 SkScalar constY, const SkPaint& paint) { 410 SkString str; 411 toString(text, byteLength, paint.getTextEncoding(), &str); 412 this->dump(kDrawText_Verb, &paint, "drawPosTextH(%s [%d] %g %g ...)", 413 str.c_str(), byteLength, SkScalarToFloat(xpos[0]), 414 SkScalarToFloat(constY)); 415} 416 417void SkDumpCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, 418 const SkMatrix* matrix, const SkPaint& paint) { 419 SkString str; 420 toString(text, byteLength, paint.getTextEncoding(), &str); 421 this->dump(kDrawText_Verb, &paint, "drawTextOnPath(%s [%d])", 422 str.c_str(), byteLength); 423} 424 425void SkDumpCanvas::onDrawPicture(const SkPicture* picture) { 426 this->dump(kDrawPicture_Verb, NULL, "drawPicture(%p) %d:%d", picture, 427 picture->width(), picture->height()); 428 fNestLevel += 1; 429 this->INHERITED::onDrawPicture(picture); 430 fNestLevel -= 1; 431 this->dump(kDrawPicture_Verb, NULL, "endPicture(%p) %d:%d", &picture, 432 picture->width(), picture->height()); 433} 434 435void SkDumpCanvas::drawVertices(VertexMode vmode, int vertexCount, 436 const SkPoint vertices[], const SkPoint texs[], 437 const SkColor colors[], SkXfermode* xmode, 438 const uint16_t indices[], int indexCount, 439 const SkPaint& paint) { 440 this->dump(kDrawVertices_Verb, &paint, "drawVertices(%s [%d] %g %g ...)", 441 toString(vmode), vertexCount, SkScalarToFloat(vertices[0].fX), 442 SkScalarToFloat(vertices[0].fY)); 443} 444 445void SkDumpCanvas::drawData(const void* data, size_t length) { 446// this->dump(kDrawData_Verb, NULL, "drawData(%d)", length); 447 this->dump(kDrawData_Verb, NULL, "drawData(%d) %.*s", length, 448 SkTMin<size_t>(length, 64), data); 449} 450 451void SkDumpCanvas::beginCommentGroup(const char* description) { 452 this->dump(kBeginCommentGroup_Verb, NULL, "beginCommentGroup(%s)", description); 453} 454 455void SkDumpCanvas::addComment(const char* kywd, const char* value) { 456 this->dump(kAddComment_Verb, NULL, "addComment(%s, %s)", kywd, value); 457} 458 459void SkDumpCanvas::endCommentGroup() { 460 this->dump(kEndCommentGroup_Verb, NULL, "endCommentGroup()"); 461} 462 463/////////////////////////////////////////////////////////////////////////////// 464/////////////////////////////////////////////////////////////////////////////// 465 466SkFormatDumper::SkFormatDumper(void (*proc)(const char*, void*), void* refcon) { 467 fProc = proc; 468 fRefcon = refcon; 469} 470 471static void appendPtr(SkString* str, const void* ptr, const char name[]) { 472 if (ptr) { 473 str->appendf(" %s:%p", name, ptr); 474 } 475} 476 477static void appendFlattenable(SkString* str, const SkFlattenable* ptr, 478 const char name[]) { 479 if (ptr) { 480 str->appendf(" %s:%p", name, ptr); 481 } 482} 483 484void SkFormatDumper::dump(SkDumpCanvas* canvas, SkDumpCanvas::Verb verb, 485 const char str[], const SkPaint* p) { 486 SkString msg, tab; 487 const int level = canvas->getNestLevel() + canvas->getSaveCount() - 1; 488 SkASSERT(level >= 0); 489 for (int i = 0; i < level; i++) { 490#if 0 491 tab.append("\t"); 492#else 493 tab.append(" "); // tabs are often too wide to be useful 494#endif 495 } 496 msg.printf("%s%s", tab.c_str(), str); 497 498 if (p) { 499 msg.appendf(" color:0x%08X flags:%X", p->getColor(), p->getFlags()); 500 appendFlattenable(&msg, p->getShader(), "shader"); 501 appendFlattenable(&msg, p->getXfermode(), "xfermode"); 502 appendFlattenable(&msg, p->getPathEffect(), "pathEffect"); 503 appendFlattenable(&msg, p->getMaskFilter(), "maskFilter"); 504 appendFlattenable(&msg, p->getPathEffect(), "pathEffect"); 505 appendFlattenable(&msg, p->getColorFilter(), "filter"); 506 507 if (SkDumpCanvas::kDrawText_Verb == verb) { 508 msg.appendf(" textSize:%g", SkScalarToFloat(p->getTextSize())); 509 appendPtr(&msg, p->getTypeface(), "typeface"); 510 } 511 512 if (p->getStyle() != SkPaint::kFill_Style) { 513 msg.appendf(" strokeWidth:%g", SkScalarToFloat(p->getStrokeWidth())); 514 } 515 } 516 517 fProc(msg.c_str(), fRefcon); 518} 519 520/////////////////////////////////////////////////////////////////////////////// 521 522static void dumpToDebugf(const char text[], void*) { 523 SkDebugf("%s\n", text); 524} 525 526SkDebugfDumper::SkDebugfDumper() : INHERITED(dumpToDebugf, NULL) {} 527 528#endif 529