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1 /* | |
2 * Copyright 2013 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "SkPdfTokenLooper.h" | |
9 #include "SkPdfNativeTokenizer.h" | |
10 #include "SkBitmap.h" | |
11 | |
12 #ifdef PDF_TRACE_DIFF_IN_PNG | |
13 #include "SkBitmapDevice.h" | |
14 #include "SkCanvas.h" | |
15 #include "SkClipStack.h" | |
16 #include "SkColor.h" | |
17 #include "SkImageEncoder.h" | |
18 #include "SkPaint.h" | |
19 #include "SkPath.h" | |
20 #include "SkRegion.h" | |
21 #include "SkScalar.h" | |
22 #include "SkString.h" | |
23 #endif // PDF_TRACE_DIFF_IN_PNG | |
24 | |
25 // FIXME (scroggo): Put behind build flags. | |
26 extern "C" SkBitmap* gDumpBitmap; | |
27 extern "C" SkCanvas* gDumpCanvas; | |
28 SkBitmap* gDumpBitmap = NULL; | |
29 SkCanvas* gDumpCanvas = NULL; | |
30 int gReadOp; | |
31 int gLastOpKeyword; | |
32 char gLastKeyword[100] = ""; | |
33 | |
34 #ifdef PDF_TRACE_DIFF_IN_PNG | |
35 // FIXME (scroggo): allOpWithVisualEffects can be local to hasVisualEffect. | |
36 char allOpWithVisualEffects[100] = ",S,s,f,F,f*,B,B*,b,b*,n,Tj,TJ,\',\",d0,d1,sh
,EI,Do,EX,"; | |
37 // FIXME (scroggo): has_visual_effect | |
38 static bool hasVisualEffect(const char* pdfOp) { | |
39 return true; | |
40 if (*pdfOp == '\0') return false; | |
41 | |
42 char markedPdfOp[100] = ","; | |
43 strcat(markedPdfOp, pdfOp); | |
44 strcat(markedPdfOp, ","); | |
45 | |
46 return (strstr(allOpWithVisualEffects, markedPdfOp) != NULL); | |
47 } | |
48 | |
49 static void setup_bitmap(SkBitmap* bitmap, int width, int height) { | |
50 bitmap->setConfig(SkBitmap::kARGB_8888_Config, width, height); | |
51 | |
52 bitmap->allocPixels(); | |
53 bitmap->eraseColor(SK_ColorWHITE); | |
54 } | |
55 | |
56 #endif // PDF_TRACE_DIFF_IN_PNG | |
57 | |
58 // FIXME (scroggo): fTokenizer -> tokenizer. | |
59 bool readToken(SkPdfNativeTokenizer* fTokenizer, PdfToken* token) { | |
60 bool ret = fTokenizer->readToken(token); | |
61 | |
62 gReadOp++; | |
63 gLastOpKeyword++; | |
64 #ifdef PDF_TRACE_DIFF_IN_PNG | |
65 // TODO(edisonn): this code is used to make a step by step history of all th
e draw operations | |
66 // so we could find the step where something is wrong. | |
67 if (gLastKeyword[0] && hasVisualEffect(gLastKeyword)) { | |
68 gDumpCanvas->flush(); | |
69 | |
70 // FIXME (scroggo): Could use SkSurface/SkImage? | |
71 SkBitmap bitmap; | |
72 setup_bitmap(&bitmap, gDumpBitmap->width(), gDumpBitmap->height()); | |
73 | |
74 memcpy(bitmap.getPixels(), gDumpBitmap->getPixels(), gDumpBitmap->getSiz
e()); | |
75 | |
76 SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (bitmap))); | |
77 SkCanvas canvas(device); | |
78 | |
79 // draw context stuff here | |
80 SkPaint blueBorder; | |
81 blueBorder.setColor(SK_ColorBLUE); | |
82 blueBorder.setStyle(SkPaint::kStroke_Style); | |
83 blueBorder.setTextSize(SkDoubleToScalar(20)); | |
84 | |
85 SkString str; | |
86 | |
87 const SkClipStack* clipStack = gDumpCanvas->getClipStack(); | |
88 if (clipStack) { | |
89 SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_IterSt
art); | |
90 const SkClipStack::Element* elem; | |
91 double y = 0; | |
92 int total = 0; | |
93 while ((elem = iter.next()) != NULL) { | |
94 total++; | |
95 y += 30; | |
96 | |
97 switch (elem->getType()) { | |
98 case SkClipStack::Element::kRect_Type: | |
99 canvas.drawRect(elem->getRect(), blueBorder); | |
100 canvas.drawText("Rect Clip", strlen("Rect Clip"), | |
101 SkDoubleToScalar(10), SkDoubleToScalar(y
), blueBorder); | |
102 break; | |
103 case SkClipStack::Element::kPath_Type: | |
104 canvas.drawPath(elem->getPath(), blueBorder); | |
105 canvas.drawText("Path Clip", strlen("Path Clip"), | |
106 SkDoubleToScalar(10), SkDoubleToScalar(y
), blueBorder); | |
107 break; | |
108 case SkClipStack::Element::kEmpty_Type: | |
109 canvas.drawText("Empty Clip!!!", strlen("Empty Clip!!!")
, | |
110 SkDoubleToScalar(10), SkDoubleToScalar(y
), blueBorder); | |
111 break; | |
112 default: | |
113 canvas.drawText("Unkown Clip!!!", strlen("Unkown Clip!!!
"), | |
114 SkDoubleToScalar(10), SkDoubleToScalar(y
), blueBorder); | |
115 break; | |
116 } | |
117 } | |
118 | |
119 y += 30; | |
120 str.printf("Number of clips in stack: %i", total); | |
121 canvas.drawText(str.c_str(), str.size(), | |
122 SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorde
r); | |
123 } | |
124 | |
125 const SkRegion& clipRegion = gDumpCanvas->getTotalClip(); | |
126 SkPath clipPath; | |
127 if (clipRegion.getBoundaryPath(&clipPath)) { | |
128 SkPaint redBorder; | |
129 redBorder.setColor(SK_ColorRED); | |
130 redBorder.setStyle(SkPaint::kStroke_Style); | |
131 canvas.drawPath(clipPath, redBorder); | |
132 } | |
133 | |
134 canvas.flush(); | |
135 | |
136 SkString out; | |
137 | |
138 // TODO(edisonn): overlay on top of image inf about the clip , grafic st
ate, the stack | |
139 | |
140 out.appendf("/tmp/log_step_by_step/step-%i-%s.png", | |
141 gLastOpKeyword, gLastKeyword); | |
142 SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG_Typ
e, 100); | |
143 } | |
144 | |
145 if (ret && token->fType == kKeyword_TokenType && | |
146 token->fKeyword && token->fKeywordLength > 0 && token->fKeywordLengt
h < 100) { | |
147 strncpy(gLastKeyword, token->fKeyword, token->fKeywordLength); | |
148 gLastKeyword[token->fKeywordLength] = '\0'; | |
149 } else { | |
150 gLastKeyword[0] = '\0'; | |
151 } | |
152 #endif | |
153 | |
154 return ret; | |
155 } | |
156 | |
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