OLD | NEW |
(Empty) | |
| 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 "SkPdfDiffEncoder.h" |
| 9 #include "SkPdfNativeTokenizer.h" |
| 10 |
| 11 #ifdef PDF_TRACE_DIFF_IN_PNG |
| 12 #include "SkBitmap.h" |
| 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 |
| 24 extern "C" SkBitmap* gDumpBitmap; |
| 25 extern "C" SkCanvas* gDumpCanvas; |
| 26 SkBitmap* gDumpBitmap = NULL; |
| 27 SkCanvas* gDumpCanvas = NULL; |
| 28 static int gReadOp; |
| 29 static int gOpCounter; |
| 30 static SkString gLastKeyword; |
| 31 #endif // PDF_TRACE_DIFF_IN_PNG |
| 32 |
| 33 void SkPdfDiffEncoder::WriteToFile(PdfToken* token) { |
| 34 #ifdef PDF_TRACE_DIFF_IN_PNG |
| 35 gReadOp++; |
| 36 gOpCounter++; |
| 37 |
| 38 // Only attempt to write if the dump bitmap and canvas are non NULL. They ar
e set by |
| 39 // pdf_viewer_main.cpp |
| 40 if (NULL == gDumpBitmap || NULL == gDumpCanvas) { |
| 41 return; |
| 42 } |
| 43 |
| 44 // TODO(edisonn): this code is used to make a step by step history of all th
e draw operations |
| 45 // so we could find the step where something is wrong. |
| 46 if (!gLastKeyword.isEmpty()) { |
| 47 gDumpCanvas->flush(); |
| 48 |
| 49 // Copy the existing drawing. Then we will draw the difference caused by
this command, |
| 50 // highlighted with a blue border. |
| 51 SkBitmap bitmap; |
| 52 if (gDumpBitmap->copyTo(&bitmap, SkBitmap::kARGB_8888_Config)) { |
| 53 |
| 54 SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (bitmap
))); |
| 55 SkCanvas canvas(device); |
| 56 |
| 57 // draw context stuff here |
| 58 SkPaint blueBorder; |
| 59 blueBorder.setColor(SK_ColorBLUE); |
| 60 blueBorder.setStyle(SkPaint::kStroke_Style); |
| 61 blueBorder.setTextSize(SkDoubleToScalar(20)); |
| 62 |
| 63 SkString str; |
| 64 |
| 65 const SkClipStack* clipStack = gDumpCanvas->getClipStack(); |
| 66 if (clipStack) { |
| 67 SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_It
erStart); |
| 68 const SkClipStack::Element* elem; |
| 69 double y = 0; |
| 70 int total = 0; |
| 71 while ((elem = iter.next()) != NULL) { |
| 72 total++; |
| 73 y += 30; |
| 74 |
| 75 switch (elem->getType()) { |
| 76 case SkClipStack::Element::kRect_Type: |
| 77 canvas.drawRect(elem->getRect(), blueBorder); |
| 78 canvas.drawText("Rect Clip", strlen("Rect Clip"), |
| 79 SkDoubleToScalar(10), SkDoubleToScal
ar(y), blueBorder); |
| 80 break; |
| 81 case SkClipStack::Element::kPath_Type: |
| 82 canvas.drawPath(elem->getPath(), blueBorder); |
| 83 canvas.drawText("Path Clip", strlen("Path Clip"), |
| 84 SkDoubleToScalar(10), SkDoubleToScal
ar(y), blueBorder); |
| 85 break; |
| 86 case SkClipStack::Element::kEmpty_Type: |
| 87 canvas.drawText("Empty Clip!!!", strlen("Empty Clip!
!!"), |
| 88 SkDoubleToScalar(10), SkDoubleToScal
ar(y), blueBorder); |
| 89 break; |
| 90 default: |
| 91 canvas.drawText("Unknown Clip!!!", strlen("Unknown C
lip!!!"), |
| 92 SkDoubleToScalar(10), SkDoubleToScal
ar(y), blueBorder); |
| 93 break; |
| 94 } |
| 95 } |
| 96 |
| 97 y += 30; |
| 98 str.printf("Number of clips in stack: %i", total); |
| 99 canvas.drawText(str.c_str(), str.size(), |
| 100 SkDoubleToScalar(10), SkDoubleToScalar(y), blueB
order); |
| 101 } |
| 102 |
| 103 const SkRegion& clipRegion = gDumpCanvas->getTotalClip(); |
| 104 SkPath clipPath; |
| 105 if (clipRegion.getBoundaryPath(&clipPath)) { |
| 106 SkPaint redBorder; |
| 107 redBorder.setColor(SK_ColorRED); |
| 108 redBorder.setStyle(SkPaint::kStroke_Style); |
| 109 canvas.drawPath(clipPath, redBorder); |
| 110 } |
| 111 |
| 112 canvas.flush(); |
| 113 |
| 114 SkString out; |
| 115 |
| 116 // TODO(edisonn): overlay on top of image inf about the clip , grafi
c state, the stack |
| 117 |
| 118 out.appendf("/tmp/log_step_by_step/step-%i-%s.png", gOpCounter, gLas
tKeyword.c_str()); |
| 119 |
| 120 SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG
_Type, 100); |
| 121 } |
| 122 } |
| 123 |
| 124 if (token->fType == kKeyword_TokenType && token->fKeyword && token->fKeyword
Length > 0) { |
| 125 gLastKeyword.set(token->fKeyword, token->fKeywordLength); |
| 126 } else { |
| 127 gLastKeyword.reset(); |
| 128 } |
| 129 #endif |
| 130 } |
| 131 |
OLD | NEW |