1 #include "SkDumpCanvas.h"
2 #include "SkPicture.h"
3 #include "SkPixelRef.h"
4 #include "SkString.h"
5 #include <stdarg.h>
6
7 // needed just to know that these are all subclassed from SkFlattenable
8 #include "SkShader.h"
9 #include "SkPathEffect.h"
10 #include "SkXfermode.h"
11 #include "SkColorFilter.h"
12 #include "SkPathEffect.h"
13 #include "SkMaskFilter.h"
14
toString(const SkRect & r,SkString * str)15 static void toString(const SkRect& r, SkString* str) {
16 str->printf("[%g,%g %g:%g]",
17 SkScalarToFloat(r.fLeft), SkScalarToFloat(r.fTop),
18 SkScalarToFloat(r.width()), SkScalarToFloat(r.height()));
19 }
20
toString(const SkIRect & r,SkString * str)21 static void toString(const SkIRect& r, SkString* str) {
22 str->printf("[%d,%d %d:%d]", r.fLeft, r.fTop, r.width(), r.height());
23 }
24
dumpVerbs(const SkPath & path,SkString * str)25 static void dumpVerbs(const SkPath& path, SkString* str) {
26 SkPath::Iter iter(path, false);
27 SkPoint pts[4];
28 for (;;) {
29 switch (iter.next(pts)) {
30 case SkPath::kMove_Verb:
31 str->appendf(" M%g,%g", pts[0].fX, pts[0].fY);
32 break;
33 case SkPath::kLine_Verb:
34 str->appendf(" L%g,%g", pts[0].fX, pts[0].fY);
35 break;
36 case SkPath::kQuad_Verb:
37 str->appendf(" Q%g,%g,%g,%g", pts[1].fX, pts[1].fY,
38 pts[2].fX, pts[2].fY);
39 break;
40 case SkPath::kCubic_Verb:
41 str->appendf(" C%g,%g,%g,%g,%g,%g", pts[1].fX, pts[1].fY,
42 pts[2].fX, pts[2].fY, pts[3].fX, pts[3].fY);
43 break;
44 case SkPath::kClose_Verb:
45 str->appendf("X");
46 break;
47 case SkPath::kDone_Verb:
48 return;
49 }
50 }
51 }
52
toString(const SkPath & path,SkString * str)53 static void toString(const SkPath& path, SkString* str) {
54 if (path.isEmpty()) {
55 str->set("path:empty");
56 } else {
57 toString(path.getBounds(), str);
58 #if 1
59 SkString s;
60 dumpVerbs(path, &s);
61 str->append(s.c_str());
62 #endif
63 str->append("]");
64 str->prepend("path:[");
65 }
66 }
67
toString(SkRegion::Op op)68 static const char* toString(SkRegion::Op op) {
69 static const char* gOpNames[] = {
70 "DIFF", "SECT", "UNION", "XOR", "RDIFF", "REPLACE"
71 };
72 return gOpNames[op];
73 }
74
toString(const SkRegion & rgn,SkString * str)75 static void toString(const SkRegion& rgn, SkString* str) {
76 toString(rgn.getBounds(), str);
77 str->prepend("Region:[");
78 str->append("]");
79 if (rgn.isComplex()) {
80 str->append(".complex");
81 }
82 }
83
toString(SkCanvas::VertexMode vm)84 static const char* toString(SkCanvas::VertexMode vm) {
85 static const char* gVMNames[] = {
86 "TRIANGLES", "STRIP", "FAN"
87 };
88 return gVMNames[vm];
89 }
90
toString(SkCanvas::PointMode pm)91 static const char* toString(SkCanvas::PointMode pm) {
92 static const char* gPMNames[] = {
93 "POINTS", "LINES", "POLYGON"
94 };
95 return gPMNames[pm];
96 }
97
toString(SkBitmap::Config config)98 static const char* toString(SkBitmap::Config config) {
99 static const char* gConfigNames[] = {
100 "NONE", "A1", "A8", "INDEX8", "565", "4444", "8888", "RLE"
101 };
102 return gConfigNames[config];
103 }
104
toString(const SkBitmap & bm,SkString * str)105 static void toString(const SkBitmap& bm, SkString* str) {
106 str->printf("bitmap:[%d %d] %s", bm.width(), bm.height(),
107 toString(bm.config()));
108
109 SkPixelRef* pr = bm.pixelRef();
110 if (NULL == pr) {
111 // show null or the explicit pixel address (rare)
112 str->appendf(" pixels:%p", bm.getPixels());
113 } else {
114 const char* uri = pr->getURI();
115 if (uri) {
116 str->appendf(" uri:\"%s\"", uri);
117 } else {
118 str->appendf(" pixelref:%p", pr);
119 }
120 }
121 }
122
toString(const void * text,size_t len,SkPaint::TextEncoding enc,SkString * str)123 static void toString(const void* text, size_t len, SkPaint::TextEncoding enc,
124 SkString* str) {
125 switch (enc) {
126 case SkPaint::kUTF8_TextEncoding:
127 str->printf("\"%.*s\"%s", SkMax32(len, 32), text,
128 len > 32 ? "..." : "");
129 break;
130 case SkPaint::kUTF16_TextEncoding:
131 str->printf("\"%.*S\"%s", SkMax32(len, 32), text,
132 len > 64 ? "..." : "");
133 break;
134 case SkPaint::kGlyphID_TextEncoding:
135 str->set("<glyphs>");
136 break;
137 }
138 }
139
140 ///////////////////////////////////////////////////////////////////////////////
141
SkDumpCanvas(Dumper * dumper)142 SkDumpCanvas::SkDumpCanvas(Dumper* dumper) : fNestLevel(0) {
143 SkSafeRef(dumper);
144 fDumper = dumper;
145
146 static const int WIDE_OPEN = 16384;
147 SkBitmap emptyBitmap;
148
149 emptyBitmap.setConfig(SkBitmap::kNo_Config, WIDE_OPEN, WIDE_OPEN);
150 this->setBitmapDevice(emptyBitmap);
151 }
152
~SkDumpCanvas()153 SkDumpCanvas::~SkDumpCanvas() {
154 SkSafeUnref(fDumper);
155 }
156
dump(Verb verb,const SkPaint * paint,const char format[],...)157 void SkDumpCanvas::dump(Verb verb, const SkPaint* paint,
158 const char format[], ...) {
159 static const size_t BUFFER_SIZE = 1024;
160
161 char buffer[BUFFER_SIZE];
162 va_list args;
163 va_start(args, format);
164 vsnprintf(buffer, BUFFER_SIZE, format, args);
165 va_end(args);
166
167 if (fDumper) {
168 fDumper->dump(this, verb, buffer, paint);
169 }
170 }
171
172 ///////////////////////////////////////////////////////////////////////////////
173
save(SaveFlags flags)174 int SkDumpCanvas::save(SaveFlags flags) {
175 this->dump(kSave_Verb, NULL, "save(0x%X)", flags);
176 return this->INHERITED::save(flags);
177 }
178
saveLayer(const SkRect * bounds,const SkPaint * paint,SaveFlags flags)179 int SkDumpCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
180 SaveFlags flags) {
181 this->dump(kSave_Verb, paint, "saveLayer(0x%X)", flags);
182 return this->INHERITED::saveLayer(bounds, paint, flags);
183 }
184
restore()185 void SkDumpCanvas::restore() {
186 this->INHERITED::restore();
187 this->dump(kRestore_Verb, NULL, "restore");
188 }
189
translate(SkScalar dx,SkScalar dy)190 bool SkDumpCanvas::translate(SkScalar dx, SkScalar dy) {
191 this->dump(kMatrix_Verb, NULL, "translate(%g %g)",
192 SkScalarToFloat(dx), SkScalarToFloat(dy));
193 return this->INHERITED::translate(dx, dy);
194 }
195
scale(SkScalar sx,SkScalar sy)196 bool SkDumpCanvas::scale(SkScalar sx, SkScalar sy) {
197 this->dump(kMatrix_Verb, NULL, "scale(%g %g)",
198 SkScalarToFloat(sx), SkScalarToFloat(sy));
199 return this->INHERITED::scale(sx, sy);
200 }
201
rotate(SkScalar degrees)202 bool SkDumpCanvas::rotate(SkScalar degrees) {
203 this->dump(kMatrix_Verb, NULL, "rotate(%g)", SkScalarToFloat(degrees));
204 return this->INHERITED::rotate(degrees);
205 }
206
skew(SkScalar sx,SkScalar sy)207 bool SkDumpCanvas::skew(SkScalar sx, SkScalar sy) {
208 this->dump(kMatrix_Verb, NULL, "skew(%g %g)",
209 SkScalarToFloat(sx), SkScalarToFloat(sy));
210 return this->INHERITED::skew(sx, sy);
211 }
212
concat(const SkMatrix & matrix)213 bool SkDumpCanvas::concat(const SkMatrix& matrix) {
214 SkString str;
215 matrix.toDumpString(&str);
216 this->dump(kMatrix_Verb, NULL, "concat(%s)", str.c_str());
217 return this->INHERITED::concat(matrix);
218 }
219
setMatrix(const SkMatrix & matrix)220 void SkDumpCanvas::setMatrix(const SkMatrix& matrix) {
221 SkString str;
222 matrix.toDumpString(&str);
223 this->dump(kMatrix_Verb, NULL, "setMatrix(%s)", str.c_str());
224 this->INHERITED::setMatrix(matrix);
225 }
226
227 ///////////////////////////////////////////////////////////////////////////////
228
clipRect(const SkRect & rect,SkRegion::Op op)229 bool SkDumpCanvas::clipRect(const SkRect& rect, SkRegion::Op op) {
230 SkString str;
231 toString(rect, &str);
232 this->dump(kClip_Verb, NULL, "clipRect(%s %s)", str.c_str(), toString(op));
233 return this->INHERITED::clipRect(rect, op);
234 }
235
clipPath(const SkPath & path,SkRegion::Op op)236 bool SkDumpCanvas::clipPath(const SkPath& path, SkRegion::Op op) {
237 SkString str;
238 toString(path, &str);
239 this->dump(kClip_Verb, NULL, "clipPath(%s %s)", str.c_str(), toString(op));
240 return this->INHERITED::clipPath(path, op);
241 }
242
clipRegion(const SkRegion & deviceRgn,SkRegion::Op op)243 bool SkDumpCanvas::clipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
244 SkString str;
245 toString(deviceRgn, &str);
246 this->dump(kClip_Verb, NULL, "clipRegion(%s %s)", str.c_str(),
247 toString(op));
248 return this->INHERITED::clipRegion(deviceRgn, op);
249 }
250
251 ///////////////////////////////////////////////////////////////////////////////
252
drawPaint(const SkPaint & paint)253 void SkDumpCanvas::drawPaint(const SkPaint& paint) {
254 this->dump(kDrawPaint_Verb, &paint, "drawPaint()");
255 }
256
drawPoints(PointMode mode,size_t count,const SkPoint pts[],const SkPaint & paint)257 void SkDumpCanvas::drawPoints(PointMode mode, size_t count,
258 const SkPoint pts[], const SkPaint& paint) {
259 this->dump(kDrawPoints_Verb, &paint, "drawPoints(%s, %d)", toString(mode),
260 count);
261 }
262
drawRect(const SkRect & rect,const SkPaint & paint)263 void SkDumpCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
264 SkString str;
265 toString(rect, &str);
266 this->dump(kDrawRect_Verb, &paint, "drawRect(%s)", str.c_str());
267 }
268
drawPath(const SkPath & path,const SkPaint & paint)269 void SkDumpCanvas::drawPath(const SkPath& path, const SkPaint& paint) {
270 SkString str;
271 toString(path, &str);
272 this->dump(kDrawPath_Verb, &paint, "drawPath(%s)", str.c_str());
273 }
274
drawBitmap(const SkBitmap & bitmap,SkScalar x,SkScalar y,const SkPaint * paint)275 void SkDumpCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y,
276 const SkPaint* paint) {
277 SkString str;
278 toString(bitmap, &str);
279 this->dump(kDrawBitmap_Verb, paint, "drawBitmap(%s %g %g)", str.c_str(),
280 SkScalarToFloat(x), SkScalarToFloat(y));
281 }
282
drawBitmapRect(const SkBitmap & bitmap,const SkIRect * src,const SkRect & dst,const SkPaint * paint)283 void SkDumpCanvas::drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
284 const SkRect& dst, const SkPaint* paint) {
285 SkString bs, rs;
286 toString(bitmap, &bs);
287 toString(dst, &rs);
288 // show the src-rect only if its not everything
289 if (src && (src->fLeft > 0 || src->fTop > 0 ||
290 src->fRight < bitmap.width() ||
291 src->fBottom < bitmap.height())) {
292 SkString ss;
293 toString(*src, &ss);
294 rs.prependf("%s ", ss.c_str());
295 }
296
297 this->dump(kDrawBitmap_Verb, paint, "drawBitmapRect(%s %s)",
298 bs.c_str(), rs.c_str());
299 }
300
drawBitmapMatrix(const SkBitmap & bitmap,const SkMatrix & m,const SkPaint * paint)301 void SkDumpCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
302 const SkPaint* paint) {
303 SkString bs, ms;
304 toString(bitmap, &bs);
305 m.toDumpString(&ms);
306 this->dump(kDrawBitmap_Verb, paint, "drawBitmapMatrix(%s %s)",
307 bs.c_str(), ms.c_str());
308 }
309
drawSprite(const SkBitmap & bitmap,int x,int y,const SkPaint * paint)310 void SkDumpCanvas::drawSprite(const SkBitmap& bitmap, int x, int y,
311 const SkPaint* paint) {
312 SkString str;
313 toString(bitmap, &str);
314 this->dump(kDrawBitmap_Verb, paint, "drawSprite(%s %d %d)", str.c_str(),
315 x, y);
316 }
317
drawText(const void * text,size_t byteLength,SkScalar x,SkScalar y,const SkPaint & paint)318 void SkDumpCanvas::drawText(const void* text, size_t byteLength, SkScalar x,
319 SkScalar y, const SkPaint& paint) {
320 SkString str;
321 toString(text, byteLength, paint.getTextEncoding(), &str);
322 this->dump(kDrawText_Verb, &paint, "drawText(%s [%d] %g %g)", str.c_str(),
323 byteLength, SkScalarToFloat(x), SkScalarToFloat(y));
324 }
325
drawPosText(const void * text,size_t byteLength,const SkPoint pos[],const SkPaint & paint)326 void SkDumpCanvas::drawPosText(const void* text, size_t byteLength,
327 const SkPoint pos[], const SkPaint& paint) {
328 SkString str;
329 toString(text, byteLength, paint.getTextEncoding(), &str);
330 this->dump(kDrawText_Verb, &paint, "drawPosText(%s [%d] %g %g ...)",
331 str.c_str(), byteLength, SkScalarToFloat(pos[0].fX),
332 SkScalarToFloat(pos[0].fY));
333 }
334
drawPosTextH(const void * text,size_t byteLength,const SkScalar xpos[],SkScalar constY,const SkPaint & paint)335 void SkDumpCanvas::drawPosTextH(const void* text, size_t byteLength,
336 const SkScalar xpos[], SkScalar constY,
337 const SkPaint& paint) {
338 SkString str;
339 toString(text, byteLength, paint.getTextEncoding(), &str);
340 this->dump(kDrawText_Verb, &paint, "drawPosTextH(%s [%d] %g %g ...)",
341 str.c_str(), byteLength, SkScalarToFloat(xpos[0]),
342 SkScalarToFloat(constY));
343 }
344
drawTextOnPath(const void * text,size_t byteLength,const SkPath & path,const SkMatrix * matrix,const SkPaint & paint)345 void SkDumpCanvas::drawTextOnPath(const void* text, size_t byteLength,
346 const SkPath& path, const SkMatrix* matrix,
347 const SkPaint& paint) {
348 SkString str;
349 toString(text, byteLength, paint.getTextEncoding(), &str);
350 this->dump(kDrawText_Verb, &paint, "drawTextOnPath(%s [%d])",
351 str.c_str(), byteLength);
352 }
353
drawShape(SkShape * shape)354 void SkDumpCanvas::drawShape(SkShape* shape) {
355 this->dump(kDrawShape_Verb, NULL, "drawShape(%p)", shape);
356 fNestLevel += 1;
357 this->INHERITED::drawShape(shape);
358 fNestLevel -= 1;
359 this->dump(kDrawShape_Verb, NULL, "endShape(%p)", shape);
360 }
361
drawPicture(SkPicture & picture)362 void SkDumpCanvas::drawPicture(SkPicture& picture) {
363 this->dump(kDrawPicture_Verb, NULL, "drawPicture(%p) %d:%d", &picture,
364 picture.width(), picture.height());
365 fNestLevel += 1;
366 this->INHERITED::drawPicture(picture);
367 fNestLevel -= 1;
368 this->dump(kDrawPicture_Verb, NULL, "endPicture(%p) %d:%d", &picture,
369 picture.width(), picture.height());
370 }
371
drawVertices(VertexMode vmode,int vertexCount,const SkPoint vertices[],const SkPoint texs[],const SkColor colors[],SkXfermode * xmode,const uint16_t indices[],int indexCount,const SkPaint & paint)372 void SkDumpCanvas::drawVertices(VertexMode vmode, int vertexCount,
373 const SkPoint vertices[], const SkPoint texs[],
374 const SkColor colors[], SkXfermode* xmode,
375 const uint16_t indices[], int indexCount,
376 const SkPaint& paint) {
377 this->dump(kDrawVertices_Verb, &paint, "drawVertices(%s [%d] %g %g ...)",
378 toString(vmode), vertexCount, SkScalarToFloat(vertices[0].fX),
379 SkScalarToFloat(vertices[0].fY));
380 }
381
drawData(const void * data,size_t length)382 void SkDumpCanvas::drawData(const void* data, size_t length) {
383 // this->dump(kDrawData_Verb, NULL, "drawData(%d)", length);
384 this->dump(kDrawData_Verb, NULL, "drawData(%d) %.*s", length,
385 SkMin32(length, 64), data);
386 }
387
388 ///////////////////////////////////////////////////////////////////////////////
389 ///////////////////////////////////////////////////////////////////////////////
390
SkFormatDumper(void (* proc)(const char *,void *),void * refcon)391 SkFormatDumper::SkFormatDumper(void (*proc)(const char*, void*), void* refcon) {
392 fProc = proc;
393 fRefcon = refcon;
394 }
395
appendPtr(SkString * str,const void * ptr,const char name[])396 static void appendPtr(SkString* str, const void* ptr, const char name[]) {
397 if (ptr) {
398 str->appendf(" %s:%p", name, ptr);
399 }
400 }
401
appendFlattenable(SkString * str,const SkFlattenable * ptr,const char name[])402 static void appendFlattenable(SkString* str, const SkFlattenable* ptr,
403 const char name[]) {
404 if (ptr) {
405 SkString info;
406 if (ptr->toDumpString(&info)) {
407 str->appendf(" %s", info.c_str());
408 } else {
409 str->appendf(" %s:%p", name, ptr);
410 }
411 }
412 }
413
dump(SkDumpCanvas * canvas,SkDumpCanvas::Verb verb,const char str[],const SkPaint * p)414 void SkFormatDumper::dump(SkDumpCanvas* canvas, SkDumpCanvas::Verb verb,
415 const char str[], const SkPaint* p) {
416 SkString msg, tab;
417 const int level = canvas->getNestLevel() + canvas->getSaveCount() - 1;
418 SkASSERT(level >= 0);
419 for (int i = 0; i < level; i++) {
420 tab.append("\t");
421 }
422 msg.printf("%s%s", tab.c_str(), str);
423
424 if (p) {
425 msg.appendf(" color:0x%08X flags:%X", p->getColor(), p->getFlags());
426 appendFlattenable(&msg, p->getShader(), "shader");
427 appendFlattenable(&msg, p->getXfermode(), "xfermode");
428 appendFlattenable(&msg, p->getPathEffect(), "pathEffect");
429 appendFlattenable(&msg, p->getMaskFilter(), "maskFilter");
430 appendFlattenable(&msg, p->getPathEffect(), "pathEffect");
431 appendFlattenable(&msg, p->getColorFilter(), "filter");
432
433 if (SkDumpCanvas::kDrawText_Verb == verb) {
434 msg.appendf(" textSize:%g", SkScalarToFloat(p->getTextSize()));
435 appendPtr(&msg, p->getTypeface(), "typeface");
436 }
437 }
438
439 fProc(msg.c_str(), fRefcon);
440 }
441
442 ///////////////////////////////////////////////////////////////////////////////
443
dumpToDebugf(const char text[],void *)444 static void dumpToDebugf(const char text[], void*) {
445 SkDebugf("%s\n", text);
446 }
447
SkDebugfDumper()448 SkDebugfDumper::SkDebugfDumper() : INHERITED(dumpToDebugf, NULL) {}
449
450
451