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
15static 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
21static void toString(const SkIRect& r, SkString* str) {
22    str->printf("[%d,%d %d:%d]", r.fLeft, r.fTop, r.width(), r.height());
23}
24
25static 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
53static 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
68static 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
75static 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
84static const char* toString(SkCanvas::VertexMode vm) {
85    static const char* gVMNames[] = {
86        "TRIANGLES", "STRIP", "FAN"
87    };
88    return gVMNames[vm];
89}
90
91static const char* toString(SkCanvas::PointMode pm) {
92    static const char* gPMNames[] = {
93        "POINTS", "LINES", "POLYGON"
94    };
95    return gPMNames[pm];
96}
97
98static 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
105static 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
123static void toString(const void* text, size_t len, SkPaint::TextEncoding enc,
124                     SkString* str, const SkPaint& paint,
125                     const SkScalar xpos[] = NULL) {
126    switch (enc) {
127        case SkPaint::kUTF8_TextEncoding:
128            str->printf("\"%.*s\"%s", SkMax32(len, 32), text,
129                        len > 32 ? "..." : "");
130            break;
131        case SkPaint::kUTF16_TextEncoding:
132            str->printf("\"%.*S\"%s", SkMax32(len, 32), text,
133                        len > 64 ? "..." : "");
134            break;
135        case SkPaint::kGlyphID_TextEncoding: {
136            const uint16_t* glyphs = (const uint16_t*)text;
137            const int max = 32;
138            SkUnichar uni[max];
139            int count = SkMin32(len >> 1, max);
140            paint.glyphsToUnichars(glyphs, count, uni);
141            str->append("\"");
142            for (int i = 0; i < count; i++) {
143                str->appendUnichar(uni[i]);
144            }
145            if ((size_t)count < (len >> 1)) {
146                str->append("...");
147            }
148            str->append("\"");
149        } break;
150    }
151}
152
153///////////////////////////////////////////////////////////////////////////////
154
155SkDumpCanvas::SkDumpCanvas(Dumper* dumper) : fNestLevel(0) {
156    dumper->safeRef();
157    fDumper = dumper;
158
159    static const int WIDE_OPEN = 16384;
160    SkBitmap emptyBitmap;
161
162    emptyBitmap.setConfig(SkBitmap::kNo_Config, WIDE_OPEN, WIDE_OPEN);
163    this->setBitmapDevice(emptyBitmap);
164}
165
166SkDumpCanvas::~SkDumpCanvas() {
167    fDumper->safeUnref();
168}
169
170void SkDumpCanvas::dump(Verb verb, const SkPaint* paint,
171                        const char format[], ...) {
172    static const size_t BUFFER_SIZE = 1024;
173
174    char    buffer[BUFFER_SIZE];
175    va_list args;
176    va_start(args, format);
177    vsnprintf(buffer, BUFFER_SIZE, format, args);
178    va_end(args);
179
180    if (fDumper) {
181        fDumper->dump(this, verb, buffer, paint);
182    }
183}
184
185///////////////////////////////////////////////////////////////////////////////
186
187int SkDumpCanvas::save(SaveFlags flags) {
188    this->dump(kSave_Verb, NULL, "save(0x%X)", flags);
189    return this->INHERITED::save(flags);
190}
191
192int SkDumpCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
193                             SaveFlags flags) {
194    this->dump(kSave_Verb, paint, "saveLayer(0x%X)", flags);
195    return this->INHERITED::saveLayer(bounds, paint, flags);
196}
197
198void SkDumpCanvas::restore() {
199    this->INHERITED::restore();
200    this->dump(kRestore_Verb, NULL, "restore");
201}
202
203bool SkDumpCanvas::translate(SkScalar dx, SkScalar dy) {
204    this->dump(kMatrix_Verb, NULL, "translate(%g %g)",
205               SkScalarToFloat(dx), SkScalarToFloat(dy));
206    return this->INHERITED::translate(dx, dy);
207}
208
209bool SkDumpCanvas::scale(SkScalar sx, SkScalar sy) {
210    this->dump(kMatrix_Verb, NULL, "scale(%g %g)",
211               SkScalarToFloat(sx), SkScalarToFloat(sy));
212    return this->INHERITED::scale(sx, sy);
213}
214
215bool SkDumpCanvas::rotate(SkScalar degrees) {
216    this->dump(kMatrix_Verb, NULL, "rotate(%g)", SkScalarToFloat(degrees));
217    return this->INHERITED::rotate(degrees);
218}
219
220bool SkDumpCanvas::skew(SkScalar sx, SkScalar sy) {
221    this->dump(kMatrix_Verb, NULL, "skew(%g %g)",
222               SkScalarToFloat(sx), SkScalarToFloat(sy));
223    return this->INHERITED::skew(sx, sy);
224}
225
226bool SkDumpCanvas::concat(const SkMatrix& matrix) {
227    SkString str;
228    matrix.toDumpString(&str);
229    this->dump(kMatrix_Verb, NULL, "concat(%s)", str.c_str());
230    return this->INHERITED::concat(matrix);
231}
232
233void SkDumpCanvas::setMatrix(const SkMatrix& matrix) {
234    SkString str;
235    matrix.toDumpString(&str);
236    this->dump(kMatrix_Verb, NULL, "setMatrix(%s)", str.c_str());
237    this->INHERITED::setMatrix(matrix);
238}
239
240///////////////////////////////////////////////////////////////////////////////
241
242bool SkDumpCanvas::clipRect(const SkRect& rect, SkRegion::Op op) {
243    SkString str;
244    toString(rect, &str);
245    this->dump(kClip_Verb, NULL, "clipRect(%s %s)", str.c_str(), toString(op));
246    return this->INHERITED::clipRect(rect, op);
247}
248
249bool SkDumpCanvas::clipPath(const SkPath& path, SkRegion::Op op) {
250    SkString str;
251    toString(path, &str);
252    this->dump(kClip_Verb, NULL, "clipPath(%s %s)", str.c_str(), toString(op));
253    return this->INHERITED::clipPath(path, op);
254}
255
256bool SkDumpCanvas::clipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
257    SkString str;
258    toString(deviceRgn, &str);
259    this->dump(kClip_Verb, NULL, "clipRegion(%s %s)", str.c_str(),
260               toString(op));
261    return this->INHERITED::clipRegion(deviceRgn, op);
262}
263
264///////////////////////////////////////////////////////////////////////////////
265
266void SkDumpCanvas::drawPaint(const SkPaint& paint) {
267    this->dump(kDrawPaint_Verb, &paint, "drawPaint()");
268}
269
270void SkDumpCanvas::drawPoints(PointMode mode, size_t count,
271                               const SkPoint pts[], const SkPaint& paint) {
272    this->dump(kDrawPoints_Verb, &paint, "drawPoints(%s, %d)", toString(mode),
273               count);
274}
275
276void SkDumpCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
277    SkString str;
278    toString(rect, &str);
279    this->dump(kDrawRect_Verb, &paint, "drawRect(%s)", str.c_str());
280}
281
282void SkDumpCanvas::drawPath(const SkPath& path, const SkPaint& paint) {
283    SkString str;
284    toString(path, &str);
285    this->dump(kDrawPath_Verb, &paint, "drawPath(%s)", str.c_str());
286}
287
288void SkDumpCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y,
289                               const SkPaint* paint) {
290    SkString str;
291    toString(bitmap, &str);
292    this->dump(kDrawBitmap_Verb, paint, "drawBitmap(%s %g %g)", str.c_str(),
293               SkScalarToFloat(x), SkScalarToFloat(y));
294}
295
296void SkDumpCanvas::drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
297                                   const SkRect& dst, const SkPaint* paint) {
298    SkString bs, rs;
299    toString(bitmap, &bs);
300    toString(dst, &rs);
301    // show the src-rect only if its not everything
302    if (src && (src->fLeft > 0 || src->fTop > 0 ||
303                src->fRight < bitmap.width() ||
304                src->fBottom < bitmap.height())) {
305        SkString ss;
306        toString(*src, &ss);
307        rs.prependf("%s ", ss.c_str());
308    }
309
310    this->dump(kDrawBitmap_Verb, paint, "drawBitmapRect(%s %s)",
311               bs.c_str(), rs.c_str());
312}
313
314void SkDumpCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
315                                     const SkPaint* paint) {
316    SkString bs, ms;
317    toString(bitmap, &bs);
318    m.toDumpString(&ms);
319    this->dump(kDrawBitmap_Verb, paint, "drawBitmapMatrix(%s %s)",
320               bs.c_str(), ms.c_str());
321}
322
323void SkDumpCanvas::drawSprite(const SkBitmap& bitmap, int x, int y,
324                               const SkPaint* paint) {
325    SkString str;
326    toString(bitmap, &str);
327    this->dump(kDrawBitmap_Verb, paint, "drawSprite(%s %d %d)", str.c_str(),
328               x, y);
329}
330
331void SkDumpCanvas::drawText(const void* text, size_t byteLength, SkScalar x,
332                             SkScalar y, const SkPaint& paint) {
333    SkString str;
334    toString(text, byteLength, paint.getTextEncoding(), &str, paint);
335    this->dump(kDrawText_Verb, &paint, "drawText(%s [%d] %g %g)", str.c_str(),
336               byteLength, SkScalarToFloat(x), SkScalarToFloat(y));
337}
338
339void SkDumpCanvas::drawPosText(const void* text, size_t byteLength,
340                                const SkPoint pos[], const SkPaint& paint) {
341    SkString str;
342    toString(text, byteLength, paint.getTextEncoding(), &str, paint);
343    this->dump(kDrawText_Verb, &paint, "drawPosText(%s [%d] %g %g ...)",
344               str.c_str(), byteLength, SkScalarToFloat(pos[0].fX),
345               SkScalarToFloat(pos[0].fY));
346}
347
348void SkDumpCanvas::drawPosTextH(const void* text, size_t byteLength,
349                                 const SkScalar xpos[], SkScalar constY,
350                                 const SkPaint& paint) {
351    SkString str;
352    toString(text, byteLength, paint.getTextEncoding(), &str, paint, xpos);
353    this->dump(kDrawText_Verb, &paint, "drawPosTextH(%s [%d] %g %g ...)",
354               str.c_str(), byteLength, SkScalarToFloat(xpos[0]),
355               SkScalarToFloat(constY));
356}
357
358void SkDumpCanvas::drawTextOnPath(const void* text, size_t byteLength,
359                                   const SkPath& path, const SkMatrix* matrix,
360                                   const SkPaint& paint) {
361    SkString str;
362    toString(text, byteLength, paint.getTextEncoding(), &str, paint);
363    this->dump(kDrawText_Verb, &paint, "drawTextOnPath(%s [%d])",
364               str.c_str(), byteLength);
365}
366
367void SkDumpCanvas::drawShape(SkShape* shape) {
368    this->dump(kDrawShape_Verb, NULL, "drawShape(%p)", shape);
369    fNestLevel += 1;
370    this->INHERITED::drawShape(shape);
371    fNestLevel -= 1;
372    this->dump(kDrawShape_Verb, NULL, "endShape(%p)", shape);
373}
374
375void SkDumpCanvas::drawPicture(SkPicture& picture) {
376    this->dump(kDrawPicture_Verb, NULL, "drawPicture(%p) %d:%d", &picture,
377               picture.width(), picture.height());
378    fNestLevel += 1;
379    this->INHERITED::drawPicture(picture);
380    fNestLevel -= 1;
381    this->dump(kDrawPicture_Verb, NULL, "endPicture(%p) %d:%d", &picture,
382               picture.width(), picture.height());
383}
384
385void SkDumpCanvas::drawVertices(VertexMode vmode, int vertexCount,
386                                 const SkPoint vertices[], const SkPoint texs[],
387                                 const SkColor colors[], SkXfermode* xmode,
388                                 const uint16_t indices[], int indexCount,
389                                 const SkPaint& paint) {
390    this->dump(kDrawVertices_Verb, &paint, "drawVertices(%s [%d] %g %g ...)",
391               toString(vmode), vertexCount, SkScalarToFloat(vertices[0].fX),
392               SkScalarToFloat(vertices[0].fY));
393}
394
395void SkDumpCanvas::drawData(const void* data, size_t length) {
396//    this->dump(kDrawData_Verb, NULL, "drawData(%d)", length);
397    this->dump(kDrawData_Verb, NULL, "drawData(%d) %.*s", length,
398               SkMin32(length, 64), data);
399}
400
401///////////////////////////////////////////////////////////////////////////////
402///////////////////////////////////////////////////////////////////////////////
403
404SkFormatDumper::SkFormatDumper(void (*proc)(const char*, void*), void* refcon) {
405    fProc = proc;
406    fRefcon = refcon;
407}
408
409static void appendPtr(SkString* str, const void* ptr, const char name[]) {
410    if (ptr) {
411        str->appendf(" %s:%p", name, ptr);
412    }
413}
414
415static void appendFlattenable(SkString* str, const SkFlattenable* ptr,
416                              const char name[]) {
417    if (ptr) {
418        SkString info;
419        if (ptr->toDumpString(&info)) {
420            str->appendf(" %s", info.c_str());
421        } else {
422            str->appendf(" %s:%p", name, ptr);
423        }
424    }
425}
426
427void SkFormatDumper::dump(SkDumpCanvas* canvas, SkDumpCanvas::Verb verb,
428                          const char str[], const SkPaint* p) {
429    SkString msg, tab;
430    const int level = canvas->getNestLevel() + canvas->getSaveCount() - 1;
431    SkASSERT(level >= 0);
432    for (int i = 0; i < level; i++) {
433        tab.append("\t");
434    }
435    msg.printf("%s%s", tab.c_str(), str);
436
437    if (p) {
438        msg.appendf(" color:0x%08X flags:%X", p->getColor(), p->getFlags());
439        appendFlattenable(&msg, p->getShader(), "shader");
440        appendFlattenable(&msg, p->getXfermode(), "xfermode");
441        appendFlattenable(&msg, p->getPathEffect(), "pathEffect");
442        appendFlattenable(&msg, p->getMaskFilter(), "maskFilter");
443        appendFlattenable(&msg, p->getPathEffect(), "pathEffect");
444        appendFlattenable(&msg, p->getColorFilter(), "filter");
445
446        if (SkDumpCanvas::kDrawText_Verb == verb) {
447            msg.appendf(" textSize:%g", SkScalarToFloat(p->getTextSize()));
448            appendPtr(&msg, p->getTypeface(), "typeface");
449        }
450    }
451
452    fProc(msg.c_str(), fRefcon);
453}
454
455///////////////////////////////////////////////////////////////////////////////
456
457static void dumpToDebugf(const char text[], void*) {
458    SkDebugf("%s\n", text);
459}
460
461SkDebugfDumper::SkDebugfDumper() : INHERITED(dumpToDebugf, NULL) {}
462
463
464