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 166static SkBitmap make_wideopen_bm() { 167 static const int WIDE_OPEN = 16384; 168 169 SkBitmap bm; 170 bm.setConfig(SkBitmap::kNo_Config, WIDE_OPEN, WIDE_OPEN); 171 return bm; 172} 173 174SkDumpCanvas::SkDumpCanvas(Dumper* dumper) : INHERITED(make_wideopen_bm()) { 175 fNestLevel = 0; 176 SkSafeRef(dumper); 177 fDumper = dumper; 178} 179 180SkDumpCanvas::~SkDumpCanvas() { 181 SkSafeUnref(fDumper); 182} 183 184void SkDumpCanvas::dump(Verb verb, const SkPaint* paint, 185 const char format[], ...) { 186 static const size_t BUFFER_SIZE = 1024; 187 188 char buffer[BUFFER_SIZE]; 189 va_list args; 190 va_start(args, format); 191 vsnprintf(buffer, BUFFER_SIZE, format, args); 192 va_end(args); 193 194 if (fDumper) { 195 fDumper->dump(this, verb, buffer, paint); 196 } 197} 198 199/////////////////////////////////////////////////////////////////////////////// 200 201int SkDumpCanvas::save(SaveFlags flags) { 202 this->dump(kSave_Verb, NULL, "save(0x%X)", flags); 203 return this->INHERITED::save(flags); 204} 205 206int SkDumpCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, 207 SaveFlags flags) { 208 SkString str; 209 str.printf("saveLayer(0x%X)", flags); 210 if (bounds) { 211 str.append(" bounds"); 212 toString(*bounds, &str); 213 } 214 if (paint) { 215 if (paint->getAlpha() != 0xFF) { 216 str.appendf(" alpha:0x%02X", paint->getAlpha()); 217 } 218 if (paint->getXfermode()) { 219 str.appendf(" xfermode:%p", paint->getXfermode()); 220 } 221 } 222 this->dump(kSave_Verb, paint, str.c_str()); 223 return this->INHERITED::saveLayer(bounds, paint, flags); 224} 225 226void SkDumpCanvas::restore() { 227 this->INHERITED::restore(); 228 this->dump(kRestore_Verb, NULL, "restore"); 229} 230 231bool SkDumpCanvas::translate(SkScalar dx, SkScalar dy) { 232 this->dump(kMatrix_Verb, NULL, "translate(%g %g)", 233 SkScalarToFloat(dx), SkScalarToFloat(dy)); 234 return this->INHERITED::translate(dx, dy); 235} 236 237bool SkDumpCanvas::scale(SkScalar sx, SkScalar sy) { 238 this->dump(kMatrix_Verb, NULL, "scale(%g %g)", 239 SkScalarToFloat(sx), SkScalarToFloat(sy)); 240 return this->INHERITED::scale(sx, sy); 241} 242 243bool SkDumpCanvas::rotate(SkScalar degrees) { 244 this->dump(kMatrix_Verb, NULL, "rotate(%g)", SkScalarToFloat(degrees)); 245 return this->INHERITED::rotate(degrees); 246} 247 248bool SkDumpCanvas::skew(SkScalar sx, SkScalar sy) { 249 this->dump(kMatrix_Verb, NULL, "skew(%g %g)", 250 SkScalarToFloat(sx), SkScalarToFloat(sy)); 251 return this->INHERITED::skew(sx, sy); 252} 253 254bool SkDumpCanvas::concat(const SkMatrix& matrix) { 255 SkString str; 256 matrix.toString(&str); 257 this->dump(kMatrix_Verb, NULL, "concat(%s)", str.c_str()); 258 return this->INHERITED::concat(matrix); 259} 260 261void SkDumpCanvas::setMatrix(const SkMatrix& matrix) { 262 SkString str; 263 matrix.toString(&str); 264 this->dump(kMatrix_Verb, NULL, "setMatrix(%s)", str.c_str()); 265 this->INHERITED::setMatrix(matrix); 266} 267 268/////////////////////////////////////////////////////////////////////////////// 269 270static const char* bool_to_aastring(bool doAA) { 271 return doAA ? "AA" : "BW"; 272} 273 274bool SkDumpCanvas::clipRect(const SkRect& rect, SkRegion::Op op, bool doAA) { 275 SkString str; 276 toString(rect, &str); 277 this->dump(kClip_Verb, NULL, "clipRect(%s %s %s)", str.c_str(), toString(op), 278 bool_to_aastring(doAA)); 279 return this->INHERITED::clipRect(rect, op, doAA); 280} 281 282bool SkDumpCanvas::clipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA) { 283 SkString str; 284 toString(rrect, &str); 285 this->dump(kClip_Verb, NULL, "clipRRect(%s %s %s)", str.c_str(), toString(op), 286 bool_to_aastring(doAA)); 287 return this->INHERITED::clipRRect(rrect, op, doAA); 288} 289 290bool SkDumpCanvas::clipPath(const SkPath& path, SkRegion::Op op, bool doAA) { 291 SkString str; 292 toString(path, &str); 293 this->dump(kClip_Verb, NULL, "clipPath(%s %s %s)", str.c_str(), toString(op), 294 bool_to_aastring(doAA)); 295 return this->INHERITED::clipPath(path, op, doAA); 296} 297 298bool SkDumpCanvas::clipRegion(const SkRegion& deviceRgn, SkRegion::Op op) { 299 SkString str; 300 toString(deviceRgn, &str); 301 this->dump(kClip_Verb, NULL, "clipRegion(%s %s)", str.c_str(), 302 toString(op)); 303 return this->INHERITED::clipRegion(deviceRgn, op); 304} 305 306/////////////////////////////////////////////////////////////////////////////// 307 308void SkDumpCanvas::drawPaint(const SkPaint& paint) { 309 this->dump(kDrawPaint_Verb, &paint, "drawPaint()"); 310} 311 312void SkDumpCanvas::drawPoints(PointMode mode, size_t count, 313 const SkPoint pts[], const SkPaint& paint) { 314 this->dump(kDrawPoints_Verb, &paint, "drawPoints(%s, %d)", toString(mode), 315 count); 316} 317 318void SkDumpCanvas::drawOval(const SkRect& rect, const SkPaint& paint) { 319 SkString str; 320 toString(rect, &str); 321 this->dump(kDrawOval_Verb, &paint, "drawOval(%s)", str.c_str()); 322} 323 324void SkDumpCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { 325 SkString str; 326 toString(rect, &str); 327 this->dump(kDrawRect_Verb, &paint, "drawRect(%s)", str.c_str()); 328} 329 330void SkDumpCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { 331 SkString str; 332 toString(rrect, &str); 333 this->dump(kDrawRRect_Verb, &paint, "drawRRect(%s)", str.c_str()); 334} 335 336void SkDumpCanvas::drawPath(const SkPath& path, const SkPaint& paint) { 337 SkString str; 338 toString(path, &str); 339 this->dump(kDrawPath_Verb, &paint, "drawPath(%s)", str.c_str()); 340} 341 342void SkDumpCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y, 343 const SkPaint* paint) { 344 SkString str; 345 bitmap.toString(&str); 346 this->dump(kDrawBitmap_Verb, paint, "drawBitmap(%s %g %g)", str.c_str(), 347 SkScalarToFloat(x), SkScalarToFloat(y)); 348} 349 350void SkDumpCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src, 351 const SkRect& dst, const SkPaint* paint, 352 DrawBitmapRectFlags flags) { 353 SkString bs, rs; 354 bitmap.toString(&bs); 355 toString(dst, &rs); 356 // show the src-rect only if its not everything 357 if (src && (src->fLeft > 0 || src->fTop > 0 || 358 src->fRight < SkIntToScalar(bitmap.width()) || 359 src->fBottom < SkIntToScalar(bitmap.height()))) { 360 SkString ss; 361 toString(*src, &ss); 362 rs.prependf("%s ", ss.c_str()); 363 } 364 365 this->dump(kDrawBitmap_Verb, paint, "drawBitmapRectToRect(%s %s)", 366 bs.c_str(), rs.c_str()); 367} 368 369void SkDumpCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m, 370 const SkPaint* paint) { 371 SkString bs, ms; 372 bitmap.toString(&bs); 373 m.toString(&ms); 374 this->dump(kDrawBitmap_Verb, paint, "drawBitmapMatrix(%s %s)", 375 bs.c_str(), ms.c_str()); 376} 377 378void SkDumpCanvas::drawSprite(const SkBitmap& bitmap, int x, int y, 379 const SkPaint* paint) { 380 SkString str; 381 bitmap.toString(&str); 382 this->dump(kDrawBitmap_Verb, paint, "drawSprite(%s %d %d)", str.c_str(), 383 x, y); 384} 385 386void SkDumpCanvas::drawText(const void* text, size_t byteLength, SkScalar x, 387 SkScalar y, const SkPaint& paint) { 388 SkString str; 389 toString(text, byteLength, paint.getTextEncoding(), &str); 390 this->dump(kDrawText_Verb, &paint, "drawText(%s [%d] %g %g)", str.c_str(), 391 byteLength, SkScalarToFloat(x), SkScalarToFloat(y)); 392} 393 394void SkDumpCanvas::drawPosText(const void* text, size_t byteLength, 395 const SkPoint pos[], const SkPaint& paint) { 396 SkString str; 397 toString(text, byteLength, paint.getTextEncoding(), &str); 398 this->dump(kDrawText_Verb, &paint, "drawPosText(%s [%d] %g %g ...)", 399 str.c_str(), byteLength, SkScalarToFloat(pos[0].fX), 400 SkScalarToFloat(pos[0].fY)); 401} 402 403void SkDumpCanvas::drawPosTextH(const void* text, size_t byteLength, 404 const SkScalar xpos[], SkScalar constY, 405 const SkPaint& paint) { 406 SkString str; 407 toString(text, byteLength, paint.getTextEncoding(), &str); 408 this->dump(kDrawText_Verb, &paint, "drawPosTextH(%s [%d] %g %g ...)", 409 str.c_str(), byteLength, SkScalarToFloat(xpos[0]), 410 SkScalarToFloat(constY)); 411} 412 413void SkDumpCanvas::drawTextOnPath(const void* text, size_t byteLength, 414 const SkPath& path, const SkMatrix* matrix, 415 const SkPaint& paint) { 416 SkString str; 417 toString(text, byteLength, paint.getTextEncoding(), &str); 418 this->dump(kDrawText_Verb, &paint, "drawTextOnPath(%s [%d])", 419 str.c_str(), byteLength); 420} 421 422void SkDumpCanvas::drawPicture(SkPicture& picture) { 423 this->dump(kDrawPicture_Verb, NULL, "drawPicture(%p) %d:%d", &picture, 424 picture.width(), picture.height()); 425 fNestLevel += 1; 426 this->INHERITED::drawPicture(picture); 427 fNestLevel -= 1; 428 this->dump(kDrawPicture_Verb, NULL, "endPicture(%p) %d:%d", &picture, 429 picture.width(), picture.height()); 430} 431 432void SkDumpCanvas::drawVertices(VertexMode vmode, int vertexCount, 433 const SkPoint vertices[], const SkPoint texs[], 434 const SkColor colors[], SkXfermode* xmode, 435 const uint16_t indices[], int indexCount, 436 const SkPaint& paint) { 437 this->dump(kDrawVertices_Verb, &paint, "drawVertices(%s [%d] %g %g ...)", 438 toString(vmode), vertexCount, SkScalarToFloat(vertices[0].fX), 439 SkScalarToFloat(vertices[0].fY)); 440} 441 442void SkDumpCanvas::drawData(const void* data, size_t length) { 443// this->dump(kDrawData_Verb, NULL, "drawData(%d)", length); 444 this->dump(kDrawData_Verb, NULL, "drawData(%d) %.*s", length, 445 SkTMin<size_t>(length, 64), data); 446} 447 448void SkDumpCanvas::beginCommentGroup(const char* description) { 449 this->dump(kBeginCommentGroup_Verb, NULL, "beginCommentGroup(%s)", description); 450} 451 452void SkDumpCanvas::addComment(const char* kywd, const char* value) { 453 this->dump(kAddComment_Verb, NULL, "addComment(%s, %s)", kywd, value); 454} 455 456void SkDumpCanvas::endCommentGroup() { 457 this->dump(kEndCommentGroup_Verb, NULL, "endCommentGroup()"); 458} 459 460/////////////////////////////////////////////////////////////////////////////// 461/////////////////////////////////////////////////////////////////////////////// 462 463SkFormatDumper::SkFormatDumper(void (*proc)(const char*, void*), void* refcon) { 464 fProc = proc; 465 fRefcon = refcon; 466} 467 468static void appendPtr(SkString* str, const void* ptr, const char name[]) { 469 if (ptr) { 470 str->appendf(" %s:%p", name, ptr); 471 } 472} 473 474static void appendFlattenable(SkString* str, const SkFlattenable* ptr, 475 const char name[]) { 476 if (ptr) { 477 str->appendf(" %s:%p", name, ptr); 478 } 479} 480 481void SkFormatDumper::dump(SkDumpCanvas* canvas, SkDumpCanvas::Verb verb, 482 const char str[], const SkPaint* p) { 483 SkString msg, tab; 484 const int level = canvas->getNestLevel() + canvas->getSaveCount() - 1; 485 SkASSERT(level >= 0); 486 for (int i = 0; i < level; i++) { 487#if 0 488 tab.append("\t"); 489#else 490 tab.append(" "); // tabs are often too wide to be useful 491#endif 492 } 493 msg.printf("%s%s", tab.c_str(), str); 494 495 if (p) { 496 msg.appendf(" color:0x%08X flags:%X", p->getColor(), p->getFlags()); 497 appendFlattenable(&msg, p->getShader(), "shader"); 498 appendFlattenable(&msg, p->getXfermode(), "xfermode"); 499 appendFlattenable(&msg, p->getPathEffect(), "pathEffect"); 500 appendFlattenable(&msg, p->getMaskFilter(), "maskFilter"); 501 appendFlattenable(&msg, p->getPathEffect(), "pathEffect"); 502 appendFlattenable(&msg, p->getColorFilter(), "filter"); 503 504 if (SkDumpCanvas::kDrawText_Verb == verb) { 505 msg.appendf(" textSize:%g", SkScalarToFloat(p->getTextSize())); 506 appendPtr(&msg, p->getTypeface(), "typeface"); 507 } 508 509 if (p->getStyle() != SkPaint::kFill_Style) { 510 msg.appendf(" strokeWidth:%g", SkScalarToFloat(p->getStrokeWidth())); 511 } 512 } 513 514 fProc(msg.c_str(), fRefcon); 515} 516 517/////////////////////////////////////////////////////////////////////////////// 518 519static void dumpToDebugf(const char text[], void*) { 520 SkDebugf("%s\n", text); 521} 522 523SkDebugfDumper::SkDebugfDumper() : INHERITED(dumpToDebugf, NULL) {} 524 525#endif 526