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Unified Diff: experimental/PdfViewer/pdf_viewer_main.cpp

Issue 16295031: simple podofo and skia based pdf viewer (Closed) Base URL: http://skia.googlecode.com/svn/trunk/
Patch Set: Created 7 years, 6 months ago
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Index: experimental/PdfViewer/pdf_viewer_main.cpp
===================================================================
--- experimental/PdfViewer/pdf_viewer_main.cpp (revision 0)
+++ experimental/PdfViewer/pdf_viewer_main.cpp (revision 0)
@@ -0,0 +1,2872 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkCanvas.h"
+#include "SkDevice.h"
+#include "SkGraphics.h"
+#include "SkImageDecoder.h"
+#include "SkImageEncoder.h"
+#include "SkOSFile.h"
+#include "SkPicture.h"
+#include "SkStream.h"
+#include "SkTypeface.h"
+#include "SkTArray.h"
+#include "picture_utils.h"
+
+#include <iostream>
+#include <cstdio>
+#include <stack>
+
+#include "podofo.h"
+
+/*
+ * TODO(edisonn): ASAP so skp -> pdf -> png looks greap
+ * - load gs/ especially smask and already known prop
+ * - use transparency (I think ca and CA ops)
+ * - load font for baidu.pdf
+ * - load font for youtube.pdf
+*/
+
+//#define PDF_TRACE
+//#define PDF_TRACE_DIFF_IN_PNG
+//#define PDF_DEBUG_NO_CLIPING
+//#define PDF_DEBUG_NO_PAGE_CLIPING
+//#define PDF_DEBUG_3X
+
+// TODO(edisonn): move in trace util.
+#ifdef PDF_TRACE
+static void SkTraceMatrix(const SkMatrix& matrix, const char* sz = "") {
+ printf("SkMatrix %s ", sz);
+ for (int i = 0 ; i < 9 ; i++) {
+ printf("%f ", SkScalarToDouble(matrix.get(i)));
+ }
+ printf("\n");
+}
+#else
+#define SkTraceMatrix(a,b)
+#endif
+
+using namespace std;
+using namespace PoDoFo;
+
+// Utilities
+static void setup_bitmap(SkBitmap* bitmap, int width, int height, SkColor color = SK_ColorWHITE) {
+ bitmap->setConfig(SkBitmap::kARGB_8888_Config, width, height);
+
+ bitmap->allocPixels();
+ bitmap->eraseColor(color);
+}
+
+// TODO(edisonn): synonyms? DeviceRGB and RGB ...
+int GetColorSpaceComponents(const std::string& colorSpace) {
+ if (colorSpace == "DeviceCMYK") {
+ return 4;
+ } else if (colorSpace == "DeviceGray" ||
+ colorSpace == "CalGray" ||
+ colorSpace == "Indexed") {
+ return 1;
+ } else if (colorSpace == "DeviceRGB" ||
+ colorSpace == "CalRGB" ||
+ colorSpace == "Lab") {
+ return 3;
+ } else {
+ return 0;
+ }
+}
+
+PdfObject* resolveReferenceObject(PdfMemDocument* pdfDoc,
+ PdfObject* obj,
+ bool resolveOneElementArrays = false) {
+ while (obj && (obj->IsReference() || (resolveOneElementArrays &&
+ obj->IsArray() &&
+ obj->GetArray().GetSize() == 1))) {
+ if (obj->IsReference()) {
+ // We need to force the non const, the only update we will do is for recurssion checks.
+ PdfReference& ref = (PdfReference&)obj->GetReference();
+ obj = pdfDoc->GetObjects().GetObject(ref);
+ } else {
+ obj = &obj->GetArray()[0];
+ }
+ }
+
+ return obj;
+}
+
+static SkMatrix SkMatrixFromPdfMatrix(double array[6]) {
+ SkMatrix matrix;
+ matrix.setAll(SkDoubleToScalar(array[0]),
+ SkDoubleToScalar(array[2]),
+ SkDoubleToScalar(array[4]),
+ SkDoubleToScalar(array[1]),
+ SkDoubleToScalar(array[3]),
+ SkDoubleToScalar(array[5]),
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(1));
+
+ return matrix;
+}
+
+// TODO(edisonn): better class design.
+struct PdfColorOperator {
+ std::string fColorSpace; // TODO(edisonn): use SkString
+ SkColor fColor;
+ // TODO(edisonn): add here other color space options.
+
+ void setRGBColor(SkColor color) {
+ // TODO(edisonn): ASSERT DeviceRGB is the color space.
+ fColor = color;
+ }
+ // TODO(edisonn): double check the default values for all fields.
+ PdfColorOperator() : fColor(SK_ColorBLACK) {}
+};
+
+// TODO(edisonn): better class design.
+struct PdfGraphicsState {
+ SkMatrix fMatrix;
+ SkMatrix fMatrixTm;
+ SkMatrix fMatrixTlm;
+
+ double fCurPosX;
+ double fCurPosY;
+
+ double fCurFontSize;
+ bool fTextBlock;
+ PdfFont* fCurFont;
+ SkPath fPath;
+ bool fPathClosed;
+
+ // Clip that is applied after the drawing is done!!!
+ bool fHasClipPathToApply;
+ SkPath fClipPath;
+
+ PdfColorOperator fStroking;
+ PdfColorOperator fNonStroking;
+
+ double fLineWidth;
+ double fTextLeading;
+ double fWordSpace;
+ double fCharSpace;
+
+ PdfObject* fObjectWithResources;
+
+ SkBitmap fSMask;
+
+ PdfGraphicsState() {
+ fCurPosX = 0.0;
+ fCurPosY = 0.0;
+ fCurFontSize = 0.0;
+ fTextBlock = false;
+ fCurFont = NULL;
+ fMatrix = SkMatrix::I();
+ fMatrixTm = SkMatrix::I();
+ fMatrixTlm = SkMatrix::I();
+ fPathClosed = true;
+ fLineWidth = 0;
+ fTextLeading = 0;
+ fWordSpace = 0;
+ fCharSpace = 0;
+ fObjectWithResources = NULL;
+ fHasClipPathToApply = false;
+ }
+};
+
+// TODO(edisonn): better class design.
+struct PdfInlineImage {
+ std::map<std::string, std::string> fKeyValuePairs;
+ std::string fImageData;
+
+};
+
+// TODO(edisonn): better class design.
+struct PdfContext {
+ std::stack<PdfVariant> fVarStack;
+ std::stack<PdfGraphicsState> fStateStack;
+ PdfGraphicsState fGraphicsState;
+ PoDoFo::PdfPage* fPdfPage;
+ PdfMemDocument* fPdfDoc;
+ SkMatrix fOriginalMatrix;
+
+ PdfInlineImage fInlineImage;
+
+ PdfContext() : fPdfPage(NULL),
+ fPdfDoc(NULL) {}
+
+};
+
+// TODO(edisonn): temporary code, to report how much of the PDF we actually think we rendered.
+enum PdfResult {
+ kOK_PdfResult,
+ kPartial_PdfResult,
+ kNYI_PdfResult,
+ kIgnoreError_PdfResult,
+ kError_PdfResult,
+ kUnsupported_PdfResult,
+
+ kCount_PdfResult
+};
+
+struct PdfToken {
+ const char* pszToken;
+ PdfVariant var;
+ EPdfContentsType eType;
+
+ PdfToken() : pszToken(NULL) {}
+};
+
+PdfContext* gPdfContext = NULL;
+SkBitmap* gDumpBitmap = NULL;
+SkCanvas* gDumpCanvas = NULL;
+char gLastKeyword[100] = "";
+int gLastOpKeyword = -1;
+char allOpWithVisualEffects[100] = ",S,s,f,F,f*,B,B*,b,b*,n,Tj,TJ,\',\",d0,d1,sh,EI,Do,EX";
+int gReadOp = 0;
+
+
+
+bool hasVisualEffect(const char* pdfOp) {
+ return true;
+ if (*pdfOp == '\0') return false;
+
+ char markedPdfOp[100] = ",";
+ strcat(markedPdfOp, pdfOp);
+ strcat(markedPdfOp, ",");
+
+ return (strstr(allOpWithVisualEffects, markedPdfOp) != NULL);
+}
+
+// TODO(edisonn): Pass PdfContext and SkCanvasd only with the define for instrumentation.
+static bool readToken(PdfContentsTokenizer* fTokenizer, PdfToken* token) {
+ bool ret = fTokenizer->ReadNext(token->eType, token->pszToken, token->var);
+
+ gReadOp++;
+
+#ifdef PDF_TRACE_DIFF_IN_PNG
+ // TODO(edisonn): compare with old bitmap, and save only new bits are available, and save
+ // the numbar and name of last operation, so the file name will reflect op that changed.
+ if (hasVisualEffect(gLastKeyword)) { // TODO(edisonn): and has dirty bits.
+ gDumpCanvas->flush();
+
+ SkBitmap bitmap;
+ setup_bitmap(&bitmap, gDumpBitmap->width(), gDumpBitmap->height());
+
+ memcpy(bitmap.getPixels(), gDumpBitmap->getPixels(), gDumpBitmap->getSize());
+
+ SkAutoTUnref<SkDevice> device(SkNEW_ARGS(SkDevice, (bitmap)));
+ SkCanvas canvas(device);
+
+ // draw context stuff here
+ SkPaint blueBorder;
+ blueBorder.setColor(SK_ColorBLUE);
+ blueBorder.setStyle(SkPaint::kStroke_Style);
+ blueBorder.setTextSize(SkDoubleToScalar(20));
+
+ SkString str;
+
+ const SkClipStack* clipStack = gDumpCanvas->getClipStack();
+ if (clipStack) {
+ SkClipStack::Iter iter(*clipStack, SkClipStack::Iter::kBottom_IterStart);
+ const SkClipStack::Element* elem;
+ double y = 0;
+ int total = 0;
+ while (elem = iter.next()) {
+ total++;
+ y += 30;
+
+ switch (elem->getType()) {
+ case SkClipStack::Element::kRect_Type:
+ canvas.drawRect(elem->getRect(), blueBorder);
+ canvas.drawText("Rect Clip", strlen("Rect Clip"), SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorder);
+ break;
+ case SkClipStack::Element::kPath_Type:
+ canvas.drawPath(elem->getPath(), blueBorder);
+ canvas.drawText("Path Clip", strlen("Path Clip"), SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorder);
+ break;
+ case SkClipStack::Element::kEmpty_Type:
+ canvas.drawText("Empty Clip!!!", strlen("Empty Clip!!!"), SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorder);
+ break;
+ default:
+ canvas.drawText("Unkown Clip!!!", strlen("Unkown Clip!!!"), SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorder);
+ break;
+ }
+ }
+
+ y += 30;
+ str.printf("Number of clips in stack: %i", total);
+ canvas.drawText(str.c_str(), str.size(), SkDoubleToScalar(10), SkDoubleToScalar(y), blueBorder);
+ }
+
+ const SkRegion& clipRegion = gDumpCanvas->getTotalClip();
+ SkPath clipPath;
+ if (clipRegion.getBoundaryPath(&clipPath)) {
+ SkPaint redBorder;
+ redBorder.setColor(SK_ColorRED);
+ redBorder.setStyle(SkPaint::kStroke_Style);
+ canvas.drawPath(clipPath, redBorder);
+ }
+
+ canvas.flush();
+
+ SkString out;
+
+ // TODO(edisonn): get the image, and overlay on top of it, the clip , grafic state, teh stack,
+ // ... and other properties, to be able to debug th code easily
+
+ out.appendf("/usr/local/google/home/edisonn/log_view2/step-%i-%s.png", gLastOpKeyword, gLastKeyword);
+ SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
+ }
+
+ if (token->eType == ePdfContentsType_Keyword) {
+ strcpy(gLastKeyword, token->pszToken);
+ gLastOpKeyword = gReadOp;
+ } else {
+ strcpy(gLastKeyword, "");
+ }
+#endif
+
+ return ret;
+}
+
+// TODO(edisonn): Document PdfTokenLooper and subclasses.
+class PdfTokenLooper {
+protected:
+ PdfTokenLooper* fParent;
+ PdfContentsTokenizer* fTokenizer;
+ PdfContext* fPdfContext;
+ SkCanvas* fCanvas;
+
+public:
+ PdfTokenLooper(PdfTokenLooper* parent,
+ PdfContentsTokenizer* tokenizer,
+ PdfContext* pdfContext,
+ SkCanvas* canvas)
+ : fParent(parent), fTokenizer(tokenizer), fPdfContext(pdfContext), fCanvas(canvas) {}
+
+ virtual PdfResult consumeToken(PdfToken& token) = 0;
+ virtual void loop() = 0;
+
+ void setUp(PdfTokenLooper* parent) {
+ fParent = parent;
+ fTokenizer = parent->fTokenizer;
+ fPdfContext = parent->fPdfContext;
+ fCanvas = parent->fCanvas;
+ }
+};
+
+class PdfMainLooper : public PdfTokenLooper {
+public:
+ PdfMainLooper(PdfTokenLooper* parent,
+ PdfContentsTokenizer* tokenizer,
+ PdfContext* pdfContext,
+ SkCanvas* canvas)
+ : PdfTokenLooper(parent, tokenizer, pdfContext, canvas) {}
+
+ virtual PdfResult consumeToken(PdfToken& token);
+ virtual void loop();
+};
+
+class PdfInlineImageLooper : public PdfTokenLooper {
+public:
+ PdfInlineImageLooper()
+ : PdfTokenLooper(NULL, NULL, NULL, NULL) {}
+
+ virtual PdfResult consumeToken(PdfToken& token);
+ virtual void loop();
+ PdfResult done();
+};
+
+class PdfCompatibilitySectionLooper : public PdfTokenLooper {
+public:
+ PdfCompatibilitySectionLooper()
+ : PdfTokenLooper(NULL, NULL, NULL, NULL) {}
+
+ virtual PdfResult consumeToken(PdfToken& token);
+ virtual void loop();
+};
+
+typedef PdfResult (*PdfOperatorRenderer)(PdfContext*, SkCanvas*, PdfTokenLooper**);
+
+map<std::string, PdfOperatorRenderer> gPdfOps;
+
+map<std::string, int> gRenderStats[kCount_PdfResult];
+
+char* gRenderStatsNames[kCount_PdfResult] = {
+ "Success",
+ "Partially implemented",
+ "Not yet implemented",
+ "Ignore Error",
+ "Error",
+ "Unsupported/Unknown"
+};
+
+struct SkPdfStandardFont {
+ const char* fName;
+ bool fIsBold;
+ bool fIsItalic;
+};
+
+static map<std::string, SkPdfStandardFont>& getStandardFonts() {
+ static std::map<std::string, SkPdfStandardFont> gPdfStandardFonts;
+
+ // TODO (edisonn): , vs - ? what does it mean?
+ // TODO (edisonn): MT, PS, Oblique=italic?, ... what does it mean?
+ if (gPdfStandardFonts.empty()) {
+ gPdfStandardFonts["Arial"] = {"Arial", false, false};
+ gPdfStandardFonts["Arial,Bold"] = {"Arial", true, false};
+ gPdfStandardFonts["Arial,BoldItalic"] = {"Arial", true, true};
+ gPdfStandardFonts["Arial,Italic"] = {"Arial", false, true};
+ gPdfStandardFonts["Arial-Bold"] = {"Arial", true, false};
+ gPdfStandardFonts["Arial-BoldItalic"] = {"Arial", true, true};
+ gPdfStandardFonts["Arial-BoldItalicMT"] = {"Arial", true, true};
+ gPdfStandardFonts["Arial-BoldMT"] = {"Arial", true, false};
+ gPdfStandardFonts["Arial-Italic"] = {"Arial", false, true};
+ gPdfStandardFonts["Arial-ItalicMT"] = {"Arial", false, true};
+ gPdfStandardFonts["ArialMT"] = {"Arial", false, false};
+ gPdfStandardFonts["Courier"] = {"Courier New", false, false};
+ gPdfStandardFonts["Courier,Bold"] = {"Courier New", true, false};
+ gPdfStandardFonts["Courier,BoldItalic"] = {"Courier New", true, true};
+ gPdfStandardFonts["Courier,Italic"] = {"Courier New", false, true};
+ gPdfStandardFonts["Courier-Bold"] = {"Courier New", true, false};
+ gPdfStandardFonts["Courier-BoldOblique"] = {"Courier New", true, true};
+ gPdfStandardFonts["Courier-Oblique"] = {"Courier New", false, true};
+ gPdfStandardFonts["CourierNew"] = {"Courier New", false, false};
+ gPdfStandardFonts["CourierNew,Bold"] = {"Courier New", true, false};
+ gPdfStandardFonts["CourierNew,BoldItalic"] = {"Courier New", true, true};
+ gPdfStandardFonts["CourierNew,Italic"] = {"Courier New", false, true};
+ gPdfStandardFonts["CourierNew-Bold"] = {"Courier New", true, false};
+ gPdfStandardFonts["CourierNew-BoldItalic"] = {"Courier New", true, true};
+ gPdfStandardFonts["CourierNew-Italic"] = {"Courier New", false, true};
+ gPdfStandardFonts["CourierNewPS-BoldItalicMT"] = {"Courier New", true, true};
+ gPdfStandardFonts["CourierNewPS-BoldMT"] = {"Courier New", true, false};
+ gPdfStandardFonts["CourierNewPS-ItalicMT"] = {"Courier New", false, true};
+ gPdfStandardFonts["CourierNewPSMT"] = {"Courier New", false, false};
+ gPdfStandardFonts["Helvetica"] = {"Helvetica", false, false};
+ gPdfStandardFonts["Helvetica,Bold"] = {"Helvetica", true, false};
+ gPdfStandardFonts["Helvetica,BoldItalic"] = {"Helvetica", true, true};
+ gPdfStandardFonts["Helvetica,Italic"] = {"Helvetica", false, true};
+ gPdfStandardFonts["Helvetica-Bold"] = {"Helvetica", true, false};
+ gPdfStandardFonts["Helvetica-BoldItalic"] = {"Helvetica", true, true};
+ gPdfStandardFonts["Helvetica-BoldOblique"] = {"Helvetica", true, true};
+ gPdfStandardFonts["Helvetica-Italic"] = {"Helvetica", false, true};
+ gPdfStandardFonts["Helvetica-Oblique"] = {"Helvetica", false, true};
+ gPdfStandardFonts["Times-Bold"] = {"Times", true, false};
+ gPdfStandardFonts["Times-BoldItalic"] = {"Times", true, true};
+ gPdfStandardFonts["Times-Italic"] = {"Times", false, true};
+ gPdfStandardFonts["Times-Roman"] = {"Times New Roman", false, false};
+ gPdfStandardFonts["TimesNewRoman"] = {"Times New Roman", false, false};
+ gPdfStandardFonts["TimesNewRoman,Bold"] = {"Times New Roman", true, false};
+ gPdfStandardFonts["TimesNewRoman,BoldItalic"] = {"Times New Roman", true, true};
+ gPdfStandardFonts["TimesNewRoman,Italic"] = {"Times New Roman", false, true};
+ gPdfStandardFonts["TimesNewRoman-Bold"] = {"Times New Roman", true, false};
+ gPdfStandardFonts["TimesNewRoman-BoldItalic"] = {"Times New Roman", true, true};
+ gPdfStandardFonts["TimesNewRoman-Italic"] = {"Times New Roman", false, true};
+ gPdfStandardFonts["TimesNewRomanPS"] = {"Times New Roman", false, false};
+ gPdfStandardFonts["TimesNewRomanPS-Bold"] = {"Times New Roman", true, false};
+ gPdfStandardFonts["TimesNewRomanPS-BoldItalic"] = {"Times New Roman", true, true};
+ gPdfStandardFonts["TimesNewRomanPS-BoldItalicMT"] = {"Times New Roman", true, true};
+ gPdfStandardFonts["TimesNewRomanPS-BoldMT"] = {"Times New Roman", true, false};
+ gPdfStandardFonts["TimesNewRomanPS-Italic"] = {"Times New Roman", false, true};
+ gPdfStandardFonts["TimesNewRomanPS-ItalicMT"] = {"Times New Roman", false, true};
+ gPdfStandardFonts["TimesNewRomanPSMT"] = {"Times New Roman", false, false};
+ }
+
+ return gPdfStandardFonts;
+}
+
+static SkTypeface* SkTypefaceFromPdfStandardFont(const char* fontName, bool bold, bool italic) {
+ map<std::string, SkPdfStandardFont>& standardFontMap = getStandardFonts();
+
+ if (standardFontMap.find(fontName) != standardFontMap.end()) {
+ SkPdfStandardFont fontData = standardFontMap[fontName];
+
+ // TODO(edisonn): How does the bold/italic specified in standard definition combines with
+ // the one in /font key? use OR for now.
+ bold = bold || fontData.fIsBold;
+ italic = italic || fontData.fIsItalic;
+
+ SkTypeface* typeface = SkTypeface::CreateFromName(
+ fontData.fName,
+ SkTypeface::Style((bold ? SkTypeface::kBold : 0) |
+ (italic ? SkTypeface::kItalic : 0)));
+ if (typeface) {
+ typeface->ref();
+ }
+ return typeface;
+ }
+ return NULL;
+}
+
+static SkTypeface* SkTypefaceFromPdfFont(PdfFont* font) {
+ PdfObject* fontObject = font->GetObject();
+
+ PdfObject* pBaseFont = NULL;
+ // TODO(edisonn): warning, PoDoFo has a bug in PdfFont constructor, does not call InitVars()
+ // for now fixed locally.
+ pBaseFont = fontObject->GetIndirectKey( "BaseFont" );
+ const char* pszBaseFontName = pBaseFont->GetName().GetName().c_str();
+
+#ifdef PDF_TRACE
+ std::string str;
+ fontObject->ToString(str);
+ printf("Base Font Name: %s\n", pszBaseFontName);
+ printf("Font Object Data: %s\n", str.c_str());
+#endif
+
+ SkTypeface* typeface = SkTypefaceFromPdfStandardFont(pszBaseFontName, font->IsBold(), font->IsItalic());
+
+ if (typeface != NULL) {
+ return typeface;
+ }
+
+ char name[1000];
+ // HACK
+ strncpy(name, pszBaseFontName, 1000);
+ char* comma = strstr(name, ",");
+ char* dash = strstr(name, "-");
+ if (comma) *comma = '\0';
+ if (dash) *dash = '\0';
+
+ typeface = SkTypeface::CreateFromName(
+ name,
+ SkTypeface::Style((font->IsBold() ? SkTypeface::kBold : 0) |
+ (font->IsItalic() ? SkTypeface::kItalic : 0)));
+
+ if (typeface != NULL) {
+#ifdef PDF_TRACE
+ printf("HACKED FONT found %s\n", name);
+#endif
+ return typeface;
+ }
+
+#ifdef PDF_TRACE
+ printf("FONT_NOT_FOUND %s\n", pszBaseFontName);
+#endif
+
+ // TODO(edisonn): Report Warning, NYI
+ return SkTypeface::CreateFromName(
+ "Times New Roman",
+ SkTypeface::Style((font->IsBold() ? SkTypeface::kBold : 0) |
+ (font->IsItalic() ? SkTypeface::kItalic : 0)));
+}
+
+// TODO(edisonn): move this code in podofo, so we don't have to fix the font.
+// This logic needs to be moved in PdfEncodingObjectFactory::CreateEncoding
+std::map<PdfFont*, PdfCMapEncoding*> gFontsFixed;
+PdfEncoding* FixPdfFont(PdfContext* pdfContext, PdfFont* fCurFont) {
+ // TODO(edisonn): and is Identity-H
+ if (gFontsFixed.find(fCurFont) == gFontsFixed.end()) {
+ if (fCurFont->GetObject()->IsDictionary() && fCurFont->GetObject()->GetDictionary().HasKey(PdfName("ToUnicode"))) {
+ PdfCMapEncoding* enc = new PdfCMapEncoding(
+ fCurFont->GetObject(),
+ resolveReferenceObject(pdfContext->fPdfDoc,
+ fCurFont->GetObject()->GetDictionary().GetKey(PdfName("ToUnicode"))),
+ PdfCMapEncoding::eBaseEncoding_Identity); // todo, read the base encoding
+ gFontsFixed[fCurFont] = enc;
+ return enc;
+ }
+
+ return NULL;
+ }
+
+ return gFontsFixed[fCurFont];
+}
+
+PdfResult DrawText(PdfContext* pdfContext,
+ PdfFont* fCurFont,
+ const PdfString& rString,
+ SkCanvas* canvas)
+{
+ if (!fCurFont)
+ {
+ // TODO(edisonn): ignore the error, use the default font?
+ return kError_PdfResult;
+ }
+
+ const PdfEncoding* enc = FixPdfFont(pdfContext, fCurFont);
+ bool cMapUnicodeFont = enc != NULL;
+ if (!enc) enc = fCurFont->GetEncoding();
+ if (!enc)
+ {
+ // TODO(edisonn): Can we recover from this error?
+ return kError_PdfResult;
+ }
+
+ PdfString r2 = rString;
+ PdfString unicode;
+
+ if (cMapUnicodeFont) {
+ r2 = PdfString((pdf_utf16be*)rString.GetString(), rString.GetLength() / 2);
+ }
+
+ unicode = enc->ConvertToUnicode( r2, fCurFont );
+
+#ifdef PDF_TRACE
+ printf("%i %i ? %c rString.len = %i\n", (int)rString.GetString()[0], (int)rString.GetString()[1], (int)rString.GetString()[1], rString.GetLength());
+ printf("%i %i %i %i %c unicode.len = %i\n", (int)unicode.GetString()[0], (int)unicode.GetString()[1], (int)unicode.GetString()[2], (int)unicode.GetString()[3], (int)unicode.GetString()[0], unicode.GetLength());
+#endif
+
+ SkPaint paint;
+ // TODO(edisonn): when should fCurFont->GetFontSize() used? When cur is fCurFontSize == 0?
+ // Or maybe just not call setTextSize at all?
+ if (pdfContext->fGraphicsState.fCurFontSize != 0) {
+ paint.setTextSize(SkDoubleToScalar(pdfContext->fGraphicsState.fCurFontSize));
+ }
+ if (fCurFont->GetFontScale() != 0) {
+ paint.setTextScaleX(SkFloatToScalar(fCurFont->GetFontScale() / 100.0));
+ }
+ paint.setColor(pdfContext->fGraphicsState.fNonStroking.fColor);
+
+ paint.setTypeface(SkTypefaceFromPdfFont(fCurFont));
+
+ paint.setAntiAlias(true);
+ // TODO(edisonn): paint.setStyle(...);
+
+ canvas->save();
+ SkMatrix matrix = pdfContext->fGraphicsState.fMatrixTm;
+
+#if 0
+ // Reverse now the space, otherwise the text is upside down.
+ SkScalar z = SkIntToScalar(0);
+ SkScalar one = SkIntToScalar(1);
+
+ SkPoint normalSpace1[4] = {SkPoint::Make(z, z), SkPoint::Make(one, z), SkPoint::Make(one, one), SkPoint::Make(z, one)};
+ SkPoint mirrorSpace1[4];
+ pdfContext->fGraphicsState.fMatrixTm.mapPoints(mirrorSpace1, normalSpace1, 4);
+
+ SkPoint normalSpace2[4] = {SkPoint::Make(z, z), SkPoint::Make(one, z), SkPoint::Make(one, -one), SkPoint::Make(z, -one)};
+ SkPoint mirrorSpace2[4];
+ pdfContext->fGraphicsState.fMatrixTm.mapPoints(mirrorSpace2, normalSpace2, 4);
+
+#ifdef PDF_TRACE
+ printf("mirror1[0], x = %f y = %f\n", SkScalarToDouble(mirrorSpace1[0].x()), SkScalarToDouble(mirrorSpace1[0].y()));
+ printf("mirror1[1], x = %f y = %f\n", SkScalarToDouble(mirrorSpace1[1].x()), SkScalarToDouble(mirrorSpace1[1].y()));
+ printf("mirror1[2], x = %f y = %f\n", SkScalarToDouble(mirrorSpace1[2].x()), SkScalarToDouble(mirrorSpace1[2].y()));
+ printf("mirror1[3], x = %f y = %f\n", SkScalarToDouble(mirrorSpace1[3].x()), SkScalarToDouble(mirrorSpace1[3].y()));
+ printf("mirror2[0], x = %f y = %f\n", SkScalarToDouble(mirrorSpace2[0].x()), SkScalarToDouble(mirrorSpace2[0].y()));
+ printf("mirror2[1], x = %f y = %f\n", SkScalarToDouble(mirrorSpace2[1].x()), SkScalarToDouble(mirrorSpace2[1].y()));
+ printf("mirror2[2], x = %f y = %f\n", SkScalarToDouble(mirrorSpace2[2].x()), SkScalarToDouble(mirrorSpace2[2].y()));
+ printf("mirror2[3], x = %f y = %f\n", SkScalarToDouble(mirrorSpace2[3].x()), SkScalarToDouble(mirrorSpace2[3].y()));
+#endif
+
+ SkMatrix mirror;
+ SkASSERT(mirror.setPolyToPoly(mirrorSpace1, mirrorSpace2, 4));
+
+ // TODO(edisonn): text positioning wrong right now. Need to get matrix operations right.
+ matrix.preConcat(mirror);
+ canvas->setMatrix(matrix);
+#endif
+
+ SkPoint point1;
+ pdfContext->fGraphicsState.fMatrixTm.mapXY(SkIntToScalar(0), SkIntToScalar(0), &point1);
+
+ SkMatrix mirror;
+ mirror.setTranslate(0, -point1.y());
+ // TODO(edisonn): fix rotated text, and skewed too
+ mirror.postScale(SK_Scalar1, -SK_Scalar1);
+ // TODO(edisonn): post rotate, skew
+ mirror.postTranslate(0, point1.y());
+
+ matrix.postConcat(mirror);
+
+ canvas->setMatrix(matrix);
+
+ SkTraceMatrix(matrix, "mirrored");
+
+#ifdef PDF_TRACE
+ SkPoint point;
+ pdfContext->fGraphicsState.fMatrixTm.mapXY(SkDoubleToScalar(0), SkDoubleToScalar(0), &point);
+ printf("Original SkCanvas resolved coordinates, x = %f y = %f\n", SkScalarToDouble(point.x()), SkScalarToDouble(point.y()));
+ matrix.mapXY(SkDoubleToScalar(0), SkDoubleToScalar(0), &point);
+ printf("Mirored SkCanvas resolved coordinates, x = %f y = %f\n", SkScalarToDouble(point.x()), SkScalarToDouble(point.y()));
+#endif
+
+ // TODO(edisonn): remove this call once we load the font properly
+ // The extra * will show that we got at least the text positioning right
+ // even if font failed to be loaded
+// canvas->drawText(".", 1, SkDoubleToScalar(-5.0), SkDoubleToScalar(0.0), paint);
+
+
+
+ // TODO(edisonn): use character and word spacing .. add utility function
+ if (cMapUnicodeFont) {
+ paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
+ SkScalar textWidth = paint.measureText(unicode.GetString(), unicode.GetLength());
+ pdfContext->fGraphicsState.fMatrixTm.preTranslate(textWidth, SkDoubleToScalar(0.0));
+ canvas->drawText(unicode.GetString(), unicode.GetLength(), SkDoubleToScalar(0.0), SkDoubleToScalar(0.0), paint);
+ }
+ else {
+ paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
+ SkScalar textWidth = paint.measureText(unicode.GetStringUtf8().c_str(), strlen(unicode.GetStringUtf8().c_str()));
+ pdfContext->fGraphicsState.fMatrixTm.preTranslate(textWidth, SkDoubleToScalar(0.0));
+ canvas->drawText(unicode.GetStringUtf8().c_str(), strlen(unicode.GetStringUtf8().c_str()), SkDoubleToScalar(0.0), SkDoubleToScalar(0.0), paint);
+ }
+
+// paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
+// unsigned char ch = *(unicode.GetString() + 3);
+// if ((ch & 0xC0) != 0x80 && ch < 0x80) {
+// printf("x%i", ch);
+// SkScalar textWidth = paint.measureText(&ch, 1);
+// pdfContext->fGraphicsState.fMatrixTm.preTranslate(textWidth, SkDoubleToScalar(0.0));
+// canvas->drawText(&ch, 1, SkDoubleToScalar(0.0), SkDoubleToScalar(0.0), paint);
+// }
+
+ canvas->restore();
+
+
+ return kPartial_PdfResult;
+}
+
+// TODO(edisonn): create header files with declarations!
+PdfResult PdfOp_q(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
+PdfResult PdfOp_Q(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
+PdfResult PdfOp_Tw(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
+PdfResult PdfOp_Tc(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
+
+// TODO(edisonn): deal with synonyms (/BPC == /BitsPerComponent), here or in GetKey?
+// Always pass long form in key, and have a map of long -> short key
+bool LongFromDictionary(PdfContext* pdfContext,
+ PdfDictionary& dict,
+ const char* key,
+ long* data) {
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ dict.GetKey(PdfName(key)));
+
+ if (value == NULL || !value->IsNumber()) {
+ return false;
+ }
+
+ *data = value->GetNumber();
+ return true;
+}
+
+bool BoolFromDictionary(PdfContext* pdfContext,
+ PdfDictionary& dict,
+ const char* key,
+ bool* data) {
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ dict.GetKey(PdfName(key)));
+
+ if (value == NULL || !value->IsBool()) {
+ return false;
+ }
+
+ *data = value->GetBool();
+ return true;
+}
+
+bool NameFromDictionary(PdfContext* pdfContext,
+ PdfDictionary& dict,
+ const char* key,
+ std::string* data) {
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ dict.GetKey(PdfName(key)),
+ true);
+ if (value == NULL || !value->IsName()) {
+ return false;
+ }
+
+ *data = value->GetName().GetName();
+ return true;
+}
+
+// TODO(edisonn): perf!!!
+
+static SkColorTable* getGrayColortable() {
+ static SkColorTable* grayColortable = NULL;
+ if (grayColortable == NULL) {
+ SkPMColor* colors = new SkPMColor[256];
+ for (int i = 0 ; i < 256; i++) {
+ colors[i] = SkPreMultiplyARGB(255, i, i, i);
+ }
+ grayColortable = new SkColorTable(colors, 256);
+ }
+ return grayColortable;
+}
+
+SkBitmap transferImageStreamToBitmap(unsigned char* uncompressedStream, pdf_long uncompressedStreamLength,
+ int width, int height, int bytesPerLine,
+ int bpc, const std::string& colorSpace,
+ bool transparencyMask) {
+ SkBitmap bitmap;
+
+ int components = GetColorSpaceComponents(colorSpace);
+//#define MAX_COMPONENTS 10
+
+ int bitsPerLine = width * components * bpc;
+ // TODO(edisonn): assume start of lines are aligned at 32 bits?
+ // Is there a faster way to load the uncompressed stream into a bitmap?
+
+ // minimal support for now
+ if ((colorSpace == "DeviceRGB" || colorSpace == "RGB") && bpc == 8) {
+ SkColor* uncompressedStreamArgb = (SkColor*)malloc(width * height * sizeof(SkColor));
+
+ for (int h = 0 ; h < height; h++) {
+ long i = width * (height - 1 - h);
+ for (int w = 0 ; w < width; w++) {
+ uncompressedStreamArgb[i] = SkColorSetRGB(uncompressedStream[3 * w],
+ uncompressedStream[3 * w + 1],
+ uncompressedStream[3 * w + 2]);
+ i++;
+ }
+ uncompressedStream += bytesPerLine;
+ }
+
+ bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height);
+ bitmap.setPixels(uncompressedStreamArgb);
+ }
+ else if ((colorSpace == "DeviceGray" || colorSpace == "Gray") && bpc == 8) {
+ unsigned char* uncompressedStreamA8 = (unsigned char*)malloc(width * height);
+
+ for (int h = 0 ; h < height; h++) {
+ long i = width * (height - 1 - h);
+ for (int w = 0 ; w < width; w++) {
+ uncompressedStreamA8[i] = transparencyMask ? 255 - uncompressedStream[w] :
+ uncompressedStream[w];
+ i++;
+ }
+ uncompressedStream += bytesPerLine;
+ }
+
+ bitmap.setConfig(transparencyMask ? SkBitmap::kA8_Config : SkBitmap::kIndex8_Config,
+ width, height);
+ bitmap.setPixels(uncompressedStreamA8, transparencyMask ? NULL : getGrayColortable());
+ }
+
+ // TODO(edisonn): Report Warning, NYI, or error
+ return bitmap;
+}
+
+bool transferImageStreamToARGB(unsigned char* uncompressedStream, pdf_long uncompressedStreamLength,
+ int width, int bytesPerLine,
+ int bpc, const std::string& colorSpace,
+ SkColor** uncompressedStreamArgb,
+ pdf_long* uncompressedStreamLengthInBytesArgb) {
+ int components = GetColorSpaceComponents(colorSpace);
+//#define MAX_COMPONENTS 10
+
+ int bitsPerLine = width * components * bpc;
+ // TODO(edisonn): assume start of lines are aligned at 32 bits?
+ int height = uncompressedStreamLength / bytesPerLine;
+
+ // minimal support for now
+ if ((colorSpace == "DeviceRGB" || colorSpace == "RGB") && bpc == 8) {
+ *uncompressedStreamLengthInBytesArgb = width * height * 4;
+ *uncompressedStreamArgb = (SkColor*)malloc(*uncompressedStreamLengthInBytesArgb);
+
+ for (int h = 0 ; h < height; h++) {
+ long i = width * (height - 1 - h);
+ for (int w = 0 ; w < width; w++) {
+ (*uncompressedStreamArgb)[i] = SkColorSetRGB(uncompressedStream[3 * w],
+ uncompressedStream[3 * w + 1],
+ uncompressedStream[3 * w + 2]);
+ i++;
+ }
+ uncompressedStream += bytesPerLine;
+ }
+ return true;
+ }
+
+ if ((colorSpace == "DeviceGray" || colorSpace == "Gray") && bpc == 8) {
+ *uncompressedStreamLengthInBytesArgb = width * height * 4;
+ *uncompressedStreamArgb = (SkColor*)malloc(*uncompressedStreamLengthInBytesArgb);
+
+ for (int h = 0 ; h < height; h++) {
+ long i = width * (height - 1 - h);
+ for (int w = 0 ; w < width; w++) {
+ (*uncompressedStreamArgb)[i] = SkColorSetRGB(uncompressedStream[w],
+ uncompressedStream[w],
+ uncompressedStream[w]);
+ i++;
+ }
+ uncompressedStream += bytesPerLine;
+ }
+ return true;
+ }
+
+ return false;
+}
+
+// utils
+
+// TODO(edisonn): add cache, or put the bitmap property directly on the PdfObject
+// TODO(edisonn): deal with colorSpaces, we could add them to SkBitmap::Config
+// TODO(edisonn): preserve A1 format that skia knows, + fast convert from 111, 222, 444 to closest
+// skia format, through a table
+
+// this functions returns the image, it does not look at the smask.
+
+SkBitmap getImageFromObject(PdfContext* pdfContext, PdfObject& obj, bool transparencyMask) {
+ if (!obj.HasStream() || obj.GetStream() == NULL || obj.GetStream()->GetLength() == 0 ||
+ !obj.IsDictionary()) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("Filter")));
+
+ if (value && value->IsArray() && value->GetArray().GetSize() == 1) {
+ value = resolveReferenceObject(pdfContext->fPdfDoc,
+ &value->GetArray()[0]);
+ }
+
+ // TODO (edisonn): Fast Jpeg(DCTDecode) draw, or fast PNG(FlateDecode) draw ...
+// if (value && value->IsName() && value->GetName().GetName() == "DCTDecode") {
+// SkStream stream = SkStream::
+// SkImageDecoder::Factory()
+// }
+
+ // Get color space
+ // translate
+
+ long bpc = 0;
+ LongFromDictionary(pdfContext, obj.GetDictionary(), "BitsPerComponent", &bpc);
+
+ bool imageMask = false;
+ BoolFromDictionary(pdfContext, obj.GetDictionary(), "ImageMask", &imageMask);
+
+ if (imageMask) {
+ if (bpc != 0 && bpc != 1) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+ bpc = 1;
+ }
+
+ long width;
+ if (!LongFromDictionary(pdfContext, obj.GetDictionary(), "Width", &width)) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+
+ long height;
+ if (!LongFromDictionary(pdfContext, obj.GetDictionary(), "Height", &height)) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+
+ std::string colorSpace; // TODO(edisonn): load others than names, for more complicated
+ if (!NameFromDictionary(pdfContext, obj.GetDictionary(), "ColorSpace", &colorSpace)) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+
+ char* uncompressedStream = NULL;
+ pdf_long uncompressedStreamLength = 0;
+
+ PdfResult ret = kPartial_PdfResult;
+ // TODO(edisonn): get rid of try/catch exceptions! We should not throw on user data!
+ try {
+ obj.GetStream()->GetFilteredCopy(&uncompressedStream, &uncompressedStreamLength);
+ } catch (PdfError& e) {
+ // TODO(edisonn): report warning to be used in testing.
+ return SkBitmap();
+ }
+
+ int bytesPerLine = uncompressedStreamLength / height;
+#ifdef PDF_TRACE
+ if (uncompressedStreamLength % height != 0) {
+ printf("Warning uncompressedStreamLength % height != 0 !!!\n");
+ }
+#endif
+
+ SkBitmap bitmap = transferImageStreamToBitmap(
+ (unsigned char*)uncompressedStream, uncompressedStreamLength,
+ width, height, bytesPerLine,
+ bpc, colorSpace,
+ transparencyMask);
+
+ free(uncompressedStream);
+
+ return bitmap;
+}
+
+SkBitmap getSmaskFromObject(PdfContext* pdfContext, PdfObject& obj) {
+ PdfObject* sMask = resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("SMask")));
+
+#ifdef PDF_TRACE
+ std::string str;
+ if (sMask) {
+ sMask->ToString(str);
+ printf("/SMask of /Subtype /Image: %s\n", str.c_str());
+ }
+#endif
+
+ if (sMask) {
+ return getImageFromObject(pdfContext, *sMask, true);
+ }
+
+ // TODO(edisonn): implement GS SMask. Default to empty right now.
+ return pdfContext->fGraphicsState.fSMask;
+}
+
+PdfResult doXObject_Image(PdfContext* pdfContext, SkCanvas* canvas, PdfObject& obj) {
+ if (!obj.HasStream() || obj.GetStream() == NULL || obj.GetStream()->GetLength() == 0 ||
+ !obj.IsDictionary()) {
+ return kIgnoreError_PdfResult;
+ }
+
+ SkBitmap image = getImageFromObject(pdfContext, obj, false);
+ SkBitmap sMask = getSmaskFromObject(pdfContext, obj);
+
+ canvas->save();
+ canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+ SkRect dst = SkRect::MakeXYWH(SkDoubleToScalar(0.0), SkDoubleToScalar(0.0), SkDoubleToScalar(1.0), SkDoubleToScalar(1.0));
+
+ if (sMask.empty()) {
+ canvas->drawBitmapRect(image, dst, NULL);
+ } else {
+ canvas->saveLayer(&dst, NULL);
+ canvas->drawBitmapRect(image, dst, NULL);
+ SkPaint xfer;
+ xfer.setXfermodeMode(SkXfermode::kSrcOut_Mode); // SkXfermode::kSdtOut_Mode
+ canvas->drawBitmapRect(sMask, dst, &xfer);
+ canvas->restore();
+ }
+
+ canvas->restore();
+
+ return kPartial_PdfResult;
+}
+
+PdfResult doXObject_ImageOld(PdfContext* pdfContext, SkCanvas* canvas, PdfObject& obj) {
+ if (!obj.HasStream() || obj.GetStream() == NULL || obj.GetStream()->GetLength() == 0 ||
+ !obj.IsDictionary()) {
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfObject* sMask = resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("SMask")));
+ // TODO(edisonn): else get smask from graphi state
+ // TODO(edisonn): add utility, SkBitmap loadBitmap(PdfObject& obj, bool no_smask);
+ // TODO(edisonn): add utility, SkBitmap loadSmask(state, PdfObject& obj);
+
+#ifdef PDF_TRACE
+ std::string str;
+ if (sMask) {
+ sMask->ToString(str);
+ printf("/SMask of /Subtype /Image: %s\n", str.c_str());
+ }
+#endif
+
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("Filter")));
+
+ if (value && value->IsArray() && value->GetArray().GetSize() == 1) {
+ value = resolveReferenceObject(pdfContext->fPdfDoc,
+ &value->GetArray()[0]);
+ }
+
+ // TODO (edisonn): Fast Jpeg(DCTDecode) draw, or fast PNG(FlateDecode) draw ...
+// if (value && value->IsName() && value->GetName().GetName() == "DCTDecode") {
+// SkStream stream = SkStream::
+// SkImageDecoder::Factory()
+// }
+
+ // Get color space
+ // trasnlate
+
+ long bpc = 0;
+ LongFromDictionary(pdfContext, obj.GetDictionary(), "BitsPerComponent", &bpc);
+
+ bool imageMask = false;
+ BoolFromDictionary(pdfContext, obj.GetDictionary(), "ImageMask", &imageMask);
+
+ if (imageMask) {
+ if (bpc != 0 && bpc != 1) {
+ return kIgnoreError_PdfResult;
+ }
+ bpc = 1;
+ }
+
+ long width;
+ if (!LongFromDictionary(pdfContext, obj.GetDictionary(), "Width", &width)) {
+ return kIgnoreError_PdfResult;
+ }
+
+ long height;
+ if (!LongFromDictionary(pdfContext, obj.GetDictionary(), "Height", &height)) {
+ return kIgnoreError_PdfResult;
+ }
+
+ std::string colorSpace; // TODO(edisonn): load others than names, for more complicated
+ if (!NameFromDictionary(pdfContext, obj.GetDictionary(), "ColorSpace", &colorSpace)) {
+ return kIgnoreError_PdfResult;
+ }
+
+ char* uncompressedStream = NULL;
+ pdf_long uncompressedStreamLength = 0;
+
+ PdfResult ret = kPartial_PdfResult;
+ // TODO(edisonn): get rid of try/catch exceptions! We should not throw on user data!
+ try {
+ obj.GetStream()->GetFilteredCopy(&uncompressedStream, &uncompressedStreamLength);
+ } catch (PdfError& e) {
+ return kIgnoreError_PdfResult;
+ }
+
+ SkColor* uncompressedStreamArgb = NULL;
+ pdf_long uncompressedStreamLengthInBytesArgb = 0;
+
+ int bytesPerLine = uncompressedStreamLength / height;
+#ifdef PDF_TRACE
+ if (uncompressedStreamLength % height != 0) {
+ printf("Warning uncompressedStreamLength % height != 0 !!!\n");
+ }
+#endif
+
+ if (!transferImageStreamToARGB((unsigned char*)uncompressedStream, uncompressedStreamLength,
+ width, bytesPerLine,
+ bpc, colorSpace,
+ &uncompressedStreamArgb,
+ &uncompressedStreamLengthInBytesArgb)) {
+ free(uncompressedStream); // TODO(edisonn): avoid freeing the stream in 2 places!
+ return kIgnoreError_PdfResult;
+ }
+ free(uncompressedStream);
+
+ SkBitmap::Config config = SkBitmap::kARGB_8888_Config;
+
+ SkBitmap bitmap;
+ bitmap.setConfig(config, width, height);
+ bitmap.setPixels(uncompressedStreamArgb);
+
+ canvas->save();
+ canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+ SkRect dst = SkRect::MakeXYWH(SkDoubleToScalar(0.0), SkDoubleToScalar(0.0), SkDoubleToScalar(1.0), SkDoubleToScalar(1.0));
+ canvas->drawBitmapRect(bitmap, dst, NULL);
+ canvas->restore();
+
+ return kPartial_PdfResult;
+}
+
+bool SkMatrixFromDictionary(PdfContext* pdfContext,
+ PdfDictionary& dict,
+ const char* key,
+ SkMatrix* matrix) {
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ dict.GetKey(PdfName(key)));
+
+ if (value == NULL || !value->IsArray()) {
+ return false;
+ }
+
+ if (value->GetArray().GetSize() != 6) {
+ return false;
+ }
+
+ double array[6];
+ for (int i = 0; i < 6; i++) {
+ PdfObject* elem = resolveReferenceObject(pdfContext->fPdfDoc, &value->GetArray()[i]);
+ if (elem == NULL || (!elem->IsReal() && !elem->IsNumber())) {
+ return false;
+ }
+ array[i] = elem->GetReal();
+ }
+
+ *matrix = SkMatrixFromPdfMatrix(array);
+ return true;
+}
+
+bool SkRectFromDictionary(PdfContext* pdfContext,
+ PdfDictionary& dict,
+ const char* key,
+ SkRect* rect) {
+ PdfObject* value = resolveReferenceObject(pdfContext->fPdfDoc,
+ dict.GetKey(PdfName(key)));
+
+ if (value == NULL || !value->IsArray()) {
+ return false;
+ }
+
+ if (value->GetArray().GetSize() != 4) {
+ return false;
+ }
+
+ double array[4];
+ for (int i = 0; i < 4; i++) {
+ PdfObject* elem = resolveReferenceObject(pdfContext->fPdfDoc, &value->GetArray()[i]);
+ if (elem == NULL || (!elem->IsReal() && !elem->IsNumber())) {
+ return false;
+ }
+ array[i] = elem->GetReal();
+ }
+
+ *rect = SkRect::MakeLTRB(SkDoubleToScalar(array[0]),
+ SkDoubleToScalar(array[1]),
+ SkDoubleToScalar(array[2]),
+ SkDoubleToScalar(array[3]));
+ return true;
+}
+
+PdfResult doXObject_Form(PdfContext* pdfContext, SkCanvas* canvas, PdfObject& obj) {
+ if (!obj.HasStream() || obj.GetStream() == NULL || obj.GetStream()->GetLength() == 0) {
+ return kOK_PdfResult;
+ }
+
+ PdfOp_q(pdfContext, canvas, NULL);
+ canvas->save();
+
+ pdfContext->fGraphicsState.fObjectWithResources = &obj;
+
+ SkTraceMatrix(pdfContext->fGraphicsState.fMatrix, "Current matrix");
+
+ SkMatrix matrix;
+ if (SkMatrixFromDictionary(pdfContext, obj.GetDictionary(), "Matrix", &matrix)) {
+ pdfContext->fGraphicsState.fMatrix.preConcat(matrix);
+ pdfContext->fGraphicsState.fMatrixTm = pdfContext->fGraphicsState.fMatrix;
+ pdfContext->fGraphicsState.fMatrixTlm = pdfContext->fGraphicsState.fMatrix;
+ // TODO(edisonn) reset matrixTm and matricTlm also?
+ }
+
+ SkTraceMatrix(pdfContext->fGraphicsState.fMatrix, "Total matrix");
+
+ canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+
+ SkRect bbox;
+ if (SkRectFromDictionary(pdfContext, obj.GetDictionary(), "BBox", &bbox)) {
+ canvas->clipRect(bbox, SkRegion::kIntersect_Op, true); // TODO(edisonn): AA from settings.
+ }
+
+ // TODO(edisonn): iterate smart on the stream even if it is compressed, tokenize it as we go.
+ // For this PdfContentsTokenizer needs to be extended.
+
+ char* uncompressedStream = NULL;
+ pdf_long uncompressedStreamLength = 0;
+
+ PdfResult ret = kPartial_PdfResult;
+
+ // TODO(edisonn): get rid of try/catch exceptions! We should not throw on user data!
+ try {
+ obj.GetStream()->GetFilteredCopy(&uncompressedStream, &uncompressedStreamLength);
+ if (uncompressedStream != NULL && uncompressedStreamLength != 0) {
+ PdfContentsTokenizer tokenizer(uncompressedStream, uncompressedStreamLength);
+ PdfMainLooper looper(NULL, &tokenizer, pdfContext, canvas);
+ looper.loop();
+ }
+ free(uncompressedStream);
+ } catch (PdfError& e) {
+ ret = kIgnoreError_PdfResult;
+ }
+
+ // TODO(edisonn): should we restore the variable stack at the same state?
+ // There could be operands left, that could be consumed by a parent tokenizer when we pop.
+ canvas->restore();
+ PdfOp_Q(pdfContext, canvas, NULL);
+ return ret;
+}
+
+PdfResult doXObject_PS(PdfContext* pdfContext, SkCanvas* canvas, PdfObject& obj) {
+ return kNYI_PdfResult;
+}
+
+// TODO(edisonn): faster, have the property on the PdfObject itself.
+std::set<PdfObject*> gInRendering;
+
+class CheckRecursiveRendering {
+ PdfObject& fObj;
+public:
+ CheckRecursiveRendering(PdfObject& obj) : fObj(obj) {
+ gInRendering.insert(&obj);
+ }
+
+ ~CheckRecursiveRendering() {
+ //SkASSERT(fObj.fInRendering);
+ gInRendering.erase(&fObj);
+ }
+
+ static bool IsInRendering(PdfObject& obj) {
+ return gInRendering.find(&obj) != gInRendering.end();
+ }
+};
+
+PdfResult doXObject(PdfContext* pdfContext, SkCanvas* canvas, PdfObject& obj) {
+ if (CheckRecursiveRendering::IsInRendering(obj)) {
+ // Oops, corrupt PDF!
+ return kIgnoreError_PdfResult;
+ }
+
+ CheckRecursiveRendering checkRecursion(obj);
+
+ if (!obj.IsDictionary()) {
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfObject* type = resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("Type")));
+
+ if (type == NULL || !type->IsName()) {
+ return kIgnoreError_PdfResult;
+ }
+
+ if (type->GetName().GetName() != "XObject") {
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfObject* subtype =
+ resolveReferenceObject(pdfContext->fPdfDoc,
+ obj.GetDictionary().GetKey(PdfName("Subtype")));
+
+ if (subtype == NULL || !subtype->IsName()) {
+ return kIgnoreError_PdfResult;
+ }
+
+ if (subtype->GetName().GetName() == "Image") {
+ return doXObject_Image(pdfContext, canvas, obj);
+ } else if (subtype->GetName().GetName() == "Form") {
+ return doXObject_Form(pdfContext, canvas, obj);
+ } else if (subtype->GetName().GetName() == "PS") {
+ return doXObject_PS(pdfContext, canvas, obj);
+ }
+ return kIgnoreError_PdfResult;
+}
+
+PdfResult PdfOp_q(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fStateStack.push(pdfContext->fGraphicsState);
+ canvas->save();
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_Q(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState = pdfContext->fStateStack.top();
+ pdfContext->fStateStack.pop();
+ canvas->restore();
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_cm(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double array[6];
+ for (int i = 0 ; i < 6 ; i++) {
+ array[5 - i] = pdfContext->fVarStack.top().GetReal();
+ pdfContext->fVarStack.pop();
+ }
+
+ // a b
+ // c d
+ // e f
+
+ // 0 1
+ // 2 3
+ // 4 5
+
+ // sx ky
+ // kx sy
+ // tx ty
+ SkMatrix matrix = SkMatrixFromPdfMatrix(array);
+
+ pdfContext->fGraphicsState.fMatrix.preConcat(matrix);
+
+#ifdef PDF_TRACE
+ printf("cm ");
+ for (int i = 0 ; i < 6 ; i++) {
+ printf("%f ", array[i]);
+ }
+ printf("\n");
+ SkTraceMatrix(pdfContext->fGraphicsState.fMatrix);
+#endif
+
+ return kOK_PdfResult;
+}
+
+//leading TL Set the text leading, Tl
+//, to leading, which is a number expressed in unscaled text
+//space units. Text leading is used only by the T*, ', and " operators. Initial value: 0.
+PdfResult PdfOp_TL(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double ty = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fTextLeading = ty;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_Td(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double ty = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double tx = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ double array[6] = {1, 0, 0, 1, tx, ty};
+ SkMatrix matrix = SkMatrixFromPdfMatrix(array);
+
+ pdfContext->fGraphicsState.fMatrixTm.preConcat(matrix);
+ pdfContext->fGraphicsState.fMatrixTlm.preConcat(matrix);
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_TD(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double ty = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double tx = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ PdfVariant _ty(-ty);
+ pdfContext->fVarStack.push(_ty);
+ PdfOp_TL(pdfContext, canvas, looper);
+
+ PdfVariant vtx(tx);
+ PdfVariant vty(ty);
+ pdfContext->fVarStack.push(vtx);
+ pdfContext->fVarStack.push(vty);
+ return PdfOp_Td(pdfContext, canvas, looper);
+}
+
+PdfResult PdfOp_Tm(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double f = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double e = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double d = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double c = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double b = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double a = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ double array[6];
+ array[0] = a;
+ array[1] = b;
+ array[2] = c;
+ array[3] = d;
+ array[4] = e;
+ array[5] = f;
+
+ SkMatrix matrix = SkMatrixFromPdfMatrix(array);
+ matrix.postConcat(pdfContext->fGraphicsState.fMatrix);
+
+ // TODO(edisonn): Text positioning.
+ pdfContext->fGraphicsState.fMatrixTm = matrix;
+ pdfContext->fGraphicsState.fMatrixTlm = matrix;;
+
+ return kPartial_PdfResult;
+}
+
+//— T* Move to the start of the next line. This operator has the same effect as the code
+//0 Tl Td
+//where Tl is the current leading parameter in the text state
+PdfResult PdfOp_T_star(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ PdfVariant zero(0.0);
+ PdfVariant tl(pdfContext->fGraphicsState.fTextLeading);
+
+ pdfContext->fVarStack.push(zero);
+ pdfContext->fVarStack.push(tl);
+ return PdfOp_Td(pdfContext, canvas, looper);
+}
+
+PdfResult PdfOp_m(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ pdfContext->fGraphicsState.fCurPosY = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ pdfContext->fGraphicsState.fCurPosX = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fPath.moveTo(SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosX),
+ SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosY));
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_l(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ pdfContext->fGraphicsState.fCurPosY = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ pdfContext->fGraphicsState.fCurPosX = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fPath.lineTo(SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosX),
+ SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosY));
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_c(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ double y3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y2 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x2 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y1 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x1 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fPath.cubicTo(SkDoubleToScalar(x1), SkDoubleToScalar(y1),
+ SkDoubleToScalar(x2), SkDoubleToScalar(y2),
+ SkDoubleToScalar(x3), SkDoubleToScalar(y3));
+
+ pdfContext->fGraphicsState.fCurPosX = x3;
+ pdfContext->fGraphicsState.fCurPosY = y3;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_v(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ double y3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y2 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x2 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y1 = pdfContext->fGraphicsState.fCurPosY;
+ double x1 = pdfContext->fGraphicsState.fCurPosX;
+
+ pdfContext->fGraphicsState.fPath.cubicTo(SkDoubleToScalar(x1), SkDoubleToScalar(y1),
+ SkDoubleToScalar(x2), SkDoubleToScalar(y2),
+ SkDoubleToScalar(x3), SkDoubleToScalar(y3));
+
+ pdfContext->fGraphicsState.fCurPosX = x3;
+ pdfContext->fGraphicsState.fCurPosY = y3;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_y(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ double y3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x3 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y2 = pdfContext->fGraphicsState.fCurPosY;
+ double x2 = pdfContext->fGraphicsState.fCurPosX;
+ double y1 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x1 = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fPath.cubicTo(SkDoubleToScalar(x1), SkDoubleToScalar(y1),
+ SkDoubleToScalar(x2), SkDoubleToScalar(y2),
+ SkDoubleToScalar(x3), SkDoubleToScalar(y3));
+
+ pdfContext->fGraphicsState.fCurPosX = x3;
+ pdfContext->fGraphicsState.fCurPosY = y3;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_re(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (pdfContext->fGraphicsState.fPathClosed) {
+ pdfContext->fGraphicsState.fPath.reset();
+ pdfContext->fGraphicsState.fPathClosed = false;
+ }
+
+ double height = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double width = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double x = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ pdfContext->fGraphicsState.fPath.addRect(SkDoubleToScalar(x), SkDoubleToScalar(y),
+ SkDoubleToScalar(x + width), SkDoubleToScalar(y + height));
+
+ pdfContext->fGraphicsState.fCurPosX = x;
+ pdfContext->fGraphicsState.fCurPosY = y + height;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_h(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState.fPath.close();
+ pdfContext->fGraphicsState.fPathClosed = true;
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_fillAndStroke(PdfContext* pdfContext, SkCanvas* canvas, bool fill, bool stroke, bool close, bool evenOdd) {
+ SkPath path = pdfContext->fGraphicsState.fPath;
+
+ if (close) {
+ path.close();
+ }
+
+ canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+
+ SkPaint paint;
+
+ // TODO(edisonn): get this from pdfContext->options,
+ // or pdfContext->addPaintOptions(&paint);
+ paint.setAntiAlias(true);
+
+ // TODO(edisonn): dashing, miter, ...
+
+// path.transform(pdfContext->fGraphicsState.fMatrix);
+// path.transform(pdfContext->fOriginalMatrix);
+
+ SkPoint line[2];
+ if (fill && !stroke && path.isLine(line)) {
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setColor(pdfContext->fGraphicsState.fNonStroking.fColor);
+ paint.setStrokeWidth(SkDoubleToScalar(0));
+ canvas->drawPath(path, paint);
+ } else {
+ if (fill) {
+ paint.setStyle(SkPaint::kFill_Style);
+ if (evenOdd) {
+ path.setFillType(SkPath::kEvenOdd_FillType);
+ }
+ paint.setColor(pdfContext->fGraphicsState.fNonStroking.fColor);
+ canvas->drawPath(path, paint);
+ }
+
+ if (stroke) {
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setColor(pdfContext->fGraphicsState.fStroking.fColor);
+ paint.setStrokeWidth(SkDoubleToScalar(pdfContext->fGraphicsState.fLineWidth));
+ path.setFillType(SkPath::kWinding_FillType); // reset it, just in case it messes up the stroke
+ canvas->drawPath(path, paint);
+ }
+ }
+
+ pdfContext->fGraphicsState.fPath.reset();
+ // todo zoom ... other stuff ?
+
+ if (pdfContext->fGraphicsState.fHasClipPathToApply) {
+#ifndef PDF_DEBUG_NO_CLIPING
+ canvas->clipPath(pdfContext->fGraphicsState.fClipPath, SkRegion::kIntersect_Op, true);
+#endif
+ }
+
+ //pdfContext->fGraphicsState.fClipPath.reset();
+ pdfContext->fGraphicsState.fHasClipPathToApply = false;
+
+ return kPartial_PdfResult;
+
+}
+
+PdfResult PdfOp_S(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, false, true, false, false);
+}
+
+PdfResult PdfOp_s(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, false, true, true, false);
+}
+
+PdfResult PdfOp_F(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false);
+}
+
+PdfResult PdfOp_f(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false);
+}
+
+PdfResult PdfOp_f_star(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, true);
+}
+
+PdfResult PdfOp_B(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, false);
+}
+
+PdfResult PdfOp_B_star(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, true);
+}
+
+PdfResult PdfOp_b(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, false);
+}
+
+PdfResult PdfOp_b_star(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, true);
+}
+
+PdfResult PdfOp_n(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+ if (pdfContext->fGraphicsState.fHasClipPathToApply) {
+#ifndef PDF_DEBUG_NO_CLIPING
+ canvas->clipPath(pdfContext->fGraphicsState.fClipPath, SkRegion::kIntersect_Op, true);
+#endif
+ }
+
+ //pdfContext->fGraphicsState.fClipPath.reset();
+ pdfContext->fGraphicsState.fHasClipPathToApply = false;
+
+ pdfContext->fGraphicsState.fPathClosed = true;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_BT(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState.fTextBlock = true;
+ pdfContext->fGraphicsState.fMatrixTm = pdfContext->fGraphicsState.fMatrix;
+ pdfContext->fGraphicsState.fMatrixTlm = pdfContext->fGraphicsState.fMatrix;
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_ET(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (!pdfContext->fGraphicsState.fTextBlock) {
+ return kIgnoreError_PdfResult;
+ }
+ // TODO(edisonn): anything else to be done once we are done with draw text? Like restore stack?
+ return kPartial_PdfResult;
+}
+
+//font size Tf Set the text font, Tf
+//, to font and the text font size, Tfs, to size. font is the name of a
+//font resource in the Fontsubdictionary of the current resource dictionary; size is
+//a number representing a scale factor. There is no initial value for either font or
+//size; they must be specified explicitly using Tf before any text is shown.
+PdfResult PdfOp_Tf(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState.fCurFontSize = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ PdfName fontName = pdfContext->fVarStack.top().GetName(); pdfContext->fVarStack.pop();
+
+ // TODO(edisonn): Load font from pdfContext->fGraphicsState.fObjectWithResources ?
+ PdfObject* pFont = pdfContext->fPdfPage->GetFromResources( PdfName("Font"), fontName );
+ if( !pFont )
+ {
+ // TODO(edisonn): try to ignore the error, make sure we do not crash.
+ return kIgnoreError_PdfResult;
+ }
+
+ pdfContext->fGraphicsState.fCurFont = pdfContext->fPdfDoc->GetFont( pFont );
+ if( !pdfContext->fGraphicsState.fCurFont )
+ {
+ // TODO(edisonn): check ~/crasing, for one of the files PoDoFo throws exception
+ // when calling pFont->Reference(), with Linked list corruption.
+ return kIgnoreError_PdfResult;
+ }
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_Tj(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (!pdfContext->fGraphicsState.fTextBlock) {
+ // TODO(edisonn): try to recover and draw it any way?
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfResult ret = DrawText(pdfContext,
+ pdfContext->fGraphicsState.fCurFont,
+ pdfContext->fVarStack.top().GetString(),
+ canvas);
+ pdfContext->fVarStack.pop();
+
+ return ret;
+}
+
+PdfResult PdfOp_quote(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (!pdfContext->fGraphicsState.fTextBlock) {
+ // TODO(edisonn): try to recover and draw it any way?
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfOp_T_star(pdfContext, canvas, looper);
+ // Do not pop, and push, just transfer the param to Tj
+ return PdfOp_Tj(pdfContext, canvas, looper);
+}
+
+PdfResult PdfOp_doublequote(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (!pdfContext->fGraphicsState.fTextBlock) {
+ // TODO(edisonn): try to recover and draw it any way?
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfVariant str = pdfContext->fVarStack.top(); pdfContext->fVarStack.pop();
+ PdfVariant ac = pdfContext->fVarStack.top(); pdfContext->fVarStack.pop();
+ PdfVariant aw = pdfContext->fVarStack.top(); pdfContext->fVarStack.pop();
+
+ pdfContext->fVarStack.push(aw);
+ PdfOp_Tw(pdfContext, canvas, looper);
+
+ pdfContext->fVarStack.push(ac);
+ PdfOp_Tc(pdfContext, canvas, looper);
+
+ pdfContext->fVarStack.push(str);
+ PdfOp_quote(pdfContext, canvas, looper);
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_TJ(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ if (!pdfContext->fGraphicsState.fTextBlock) {
+ // TODO(edisonn): try to recover and draw it any way?
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfArray array = pdfContext->fVarStack.top().GetArray();
+ pdfContext->fVarStack.pop();
+
+ for( int i=0; i<static_cast<int>(array.GetSize()); i++ )
+ {
+ if( array[i].IsString() || array[i].IsHexString() ) {
+ DrawText(pdfContext,
+ pdfContext->fGraphicsState.fCurFont,
+ array[i].GetString(),
+ canvas);
+ } else if (array[i].IsReal() || array[i].IsNumber()) {
+ double dx = array[i].GetReal();
+ SkMatrix matrix;
+ matrix.setAll(SkDoubleToScalar(1),
+ SkDoubleToScalar(0),
+ // TODO(edisonn): use writing mode, vertical/horizontal.
+ SkDoubleToScalar(-dx), // amount is substracted!!!
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(1),
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(1));
+
+ pdfContext->fGraphicsState.fMatrixTm.preConcat(matrix);
+ }
+ }
+ return kPartial_PdfResult; // TODO(edisonn): Implement fully DrawText before returing OK.
+}
+
+PdfResult PdfOp_CS_cs(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ colorOperator->fColorSpace = pdfContext->fVarStack.top().GetName().GetName(); pdfContext->fVarStack.pop();
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_CS(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_CS_cs(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_cs(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_CS_cs(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_SC_sc(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ double c[4];
+ pdf_int64 v[4];
+
+ int n = GetColorSpaceComponents(colorOperator->fColorSpace);
+
+ bool doubles = true;
+ if (colorOperator->fColorSpace == "Indexed") {
+ doubles = false;
+ }
+
+#ifdef PDF_TRACE
+ printf("color space = %s, N = %i\n", colorOperator->fColorSpace.c_str(), n);
+#endif
+
+ for (int i = n - 1; i >= 0 ; i--) {
+ if (doubles) {
+ c[i] = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ } else {
+ v[i] = pdfContext->fVarStack.top().GetNumber(); pdfContext->fVarStack.pop();
+ }
+ }
+
+ // TODO(edisonn): Now, set that color. Only DeviceRGB supported.
+ if (colorOperator->fColorSpace == "DeviceRGB") {
+ colorOperator->setRGBColor(SkColorSetRGB(255*c[0], 255*c[1], 255*c[2]));
+ }
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_SC(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_SC_sc(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_sc(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_SC_sc(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_SCN_scn(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ PdfString name;
+
+ if (pdfContext->fVarStack.top().IsName()) {
+ pdfContext->fVarStack.pop();
+ }
+
+ // TODO(edisonn): SCN supports more color spaces than SCN. Read and implement spec.
+ PdfOp_SC_sc(pdfContext, canvas, colorOperator);
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_SCN(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_SCN_scn(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_scn(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_SCN_scn(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_G_g(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ double gray = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ return kNYI_PdfResult;
+}
+
+PdfResult PdfOp_G(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_G_g(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_g(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_G_g(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_RG_rg(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ double b = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double g = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double r = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ colorOperator->fColorSpace = "DeviceRGB";
+ colorOperator->setRGBColor(SkColorSetRGB(255*r, 255*g, 255*b));
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_RG(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_RG_rg(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_rg(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_RG_rg(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_K_k(PdfContext* pdfContext, SkCanvas* canvas, PdfColorOperator* colorOperator) {
+ // TODO(edisonn): spec has some rules about overprint, implement them.
+ double k = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double y = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double m = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ double c = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ colorOperator->fColorSpace = "DeviceCMYK";
+ // TODO(edisonn): Set color.
+ return kNYI_PdfResult;
+}
+
+PdfResult PdfOp_K(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
+}
+
+PdfResult PdfOp_k(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
+}
+
+PdfResult PdfOp_W(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState.fClipPath = pdfContext->fGraphicsState.fPath;
+ pdfContext->fGraphicsState.fHasClipPathToApply = true;
+
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_W_star(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fGraphicsState.fClipPath = pdfContext->fGraphicsState.fPath;
+
+#ifdef PDF_TRACE
+ if (pdfContext->fGraphicsState.fClipPath.isRect(NULL)) {
+ printf("CLIP IS RECT\n");
+ }
+#endif
+
+ // TODO(edisonn): there seem to be a bug with clipPath of a rect with even odd.
+ pdfContext->fGraphicsState.fClipPath.setFillType(SkPath::kEvenOdd_FillType);
+ pdfContext->fGraphicsState.fHasClipPathToApply = true;
+
+ return kPartial_PdfResult;
+}
+
+PdfResult PdfOp_BX(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ *looper = new PdfCompatibilitySectionLooper();
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_EX(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+#ifdef ASSERT_BAD_PDF_OPS
+ SkASSERT(false); // EX must be consumed by PdfCompatibilitySectionLooper, but let's
+ // have the assert when testing good pdfs.
+#endif
+ return kIgnoreError_PdfResult;
+}
+
+PdfResult PdfOp_BI(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ *looper = new PdfInlineImageLooper();
+ return kOK_PdfResult;
+}
+
+PdfResult PdfOp_ID(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+#ifdef ASSERT_BAD_PDF_OPS
+ SkASSERT(false); // must be processed in inline image looper, but let's
+ // have the assert when testing good pdfs.
+#endif
+ return kIgnoreError_PdfResult;
+}
+
+PdfResult PdfOp_EI(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+#ifdef ASSERT_BAD_PDF_OPS
+ SkASSERT(false); // must be processed in inline image looper, but let's
+ // have the assert when testing good pdfs.
+#endif
+ return kIgnoreError_PdfResult;
+}
+
+//lineWidth w Set the line width in the graphics state (see “Line Width” on page 152).
+PdfResult PdfOp_w(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double lineWidth = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ pdfContext->fGraphicsState.fLineWidth = lineWidth;
+
+ return kOK_PdfResult;
+}
+
+//lineCap J Set the line cap style in the graphics state (see “Line Cap Style” on page 153).
+PdfResult PdfOp_J(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ //double lineCap = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//lineJoin j Set the line join style in the graphics state (see “Line Join Style” on page 153).
+PdfResult PdfOp_j(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ //double lineJoin = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//miterLimit M Set the miter limit in the graphics state (see “Miter Limit” on page 153).
+PdfResult PdfOp_M(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ //double miterLimit = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//dashArray dashPhase d Set the line dash pattern in the graphics state (see “Line Dash Pattern” on
+//page 155).
+PdfResult PdfOp_d(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//intent ri (PDF 1.1) Set the color rendering intent in the graphics state (see “Rendering Intents” on page 197).
+PdfResult PdfOp_ri(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//flatness i Set the flatness tolerance in the graphics state (see Section 6.5.1, “Flatness
+//Tolerance”). flatness is a number in the range 0 to 100; a value of 0 speci-
+//fies the output device’s default flatness tolerance.
+PdfResult PdfOp_i(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//dictName gs (PDF 1.2) Set the specified parameters in the graphics state. dictName is
+//the name of a graphics state parameter dictionary in the ExtGState subdictionary of the current resource dictionary (see the next section).
+PdfResult PdfOp_gs(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ PdfName name = pdfContext->fVarStack.top().GetName(); pdfContext->fVarStack.pop();
+
+ PdfDictionary& pageDict = pdfContext->fGraphicsState.fObjectWithResources->GetDictionary();
+ PdfObject* resources = resolveReferenceObject(pdfContext->fPdfDoc,
+ pageDict.GetKey("Resources"));
+
+ if (resources == NULL) {
+#ifdef PDF_TRACE
+ printf("WARNING: No Resources for a page with 'gs' operator!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+#ifdef PDF_TRACE
+ std::string str;
+ resources->ToString(str);
+ printf("Print gs Page Resources: %s\n", str.c_str());
+#endif
+
+ if (!resources->IsDictionary()) {
+#ifdef PDF_TRACE
+ printf("Resources is not a dictionary!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfDictionary& resourceDict = resources->GetDictionary();
+ //Next, get the ExtGState Dictionary from the Resource Dictionary:
+ PdfObject* extGStateDictionary = resolveReferenceObject(pdfContext->fPdfDoc,
+ resourceDict.GetKey("ExtGState"));
+
+ if (extGStateDictionary == NULL) {
+#ifdef PDF_TRACE
+ printf("ExtGState is NULL!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ if (!extGStateDictionary->IsDictionary()) {
+#ifdef PDF_TRACE
+ printf("extGStateDictionary is not a dictionary!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfObject* value =
+ resolveReferenceObject(pdfContext->fPdfDoc,
+ extGStateDictionary->GetDictionary().GetKey(name));
+
+ if (value == NULL) {
+#ifdef PDF_TRACE
+ printf("Named object not found!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+#ifdef PDF_TRACE
+ value->ToString(str);
+ printf("gs object value: %s\n", str.c_str());
+#endif
+
+ // TODO(edisonn): now load all those properties in graphic state.
+
+ return kNYI_PdfResult;
+}
+
+//charSpace Tc Set the character spacing, Tc
+//, to charSpace, which is a number expressed in unscaled text space units. Character spacing is used by the Tj, TJ, and ' operators.
+//Initial value: 0.
+PdfResult PdfOp_Tc(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double charSpace = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ pdfContext->fGraphicsState.fCharSpace = charSpace;
+
+ return kOK_PdfResult;
+}
+
+//wordSpace Tw Set the word spacing, T
+//w
+//, to wordSpace, which is a number expressed in unscaled
+//text space units. Word spacing is used by the Tj, TJ, and ' operators. Initial
+//value: 0.
+PdfResult PdfOp_Tw(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double wordSpace = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+ pdfContext->fGraphicsState.fWordSpace = wordSpace;
+
+ return kOK_PdfResult;
+}
+
+//scale Tz Set the horizontal scaling, Th
+//, to (scale ˜ 100). scale is a number specifying the
+//percentage of the normal width. Initial value: 100 (normal width).
+PdfResult PdfOp_Tz(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double scale = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//render Tr Set the text rendering mode, T
+//mode, to render, which is an integer. Initial value: 0.
+PdfResult PdfOp_Tr(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double render = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//rise Ts Set the text rise, Trise, to rise, which is a number expressed in unscaled text space
+//units. Initial value: 0.
+PdfResult PdfOp_Ts(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ double rise = pdfContext->fVarStack.top().GetReal(); pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//wx wy d0
+PdfResult PdfOp_d0(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//wx wy llx lly urx ury d1
+PdfResult PdfOp_d1(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//name sh
+PdfResult PdfOp_sh(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//name Do
+PdfResult PdfOp_Do(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ PdfName name = pdfContext->fVarStack.top().GetName(); pdfContext->fVarStack.pop();
+
+ PdfDictionary& pageDict = pdfContext->fGraphicsState.fObjectWithResources->GetDictionary();
+ PdfObject* resources = resolveReferenceObject(pdfContext->fPdfDoc,
+ pageDict.GetKey("Resources"));
+
+ if (resources == NULL) {
+#ifdef PDF_TRACE
+ printf("WARNING: No Resources for a page with 'Do' operator!s\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+#ifdef PDF_TRACE
+ std::string str;
+ resources->ToString(str);
+ printf("Print Do Page Resources: %s\n", str.c_str());
+#endif
+
+ if (!resources->IsDictionary()) {
+#ifdef PDF_TRACE
+ printf("Resources is not a dictionary!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfDictionary& resourceDict = resources->GetDictionary();
+ //Next, get the XObject Dictionary from the Resource Dictionary:
+ PdfObject* xObjectDictionary = resolveReferenceObject(pdfContext->fPdfDoc,
+ resourceDict.GetKey("XObject"));
+
+ if (xObjectDictionary == NULL) {
+#ifdef PDF_TRACE
+ printf("XObject is NULL!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ if (!xObjectDictionary->IsDictionary()) {
+#ifdef PDF_TRACE
+ printf("xObjectDictionary is not a dictionary!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+ PdfObject* value =
+ resolveReferenceObject(pdfContext->fPdfDoc,
+ xObjectDictionary->GetDictionary().GetKey(name));
+
+ if (value == NULL) {
+#ifdef PDF_TRACE
+ printf("Named object not found!\n");
+#endif
+ return kIgnoreError_PdfResult;
+ }
+
+#ifdef PDF_TRACE
+ value->ToString(str);
+ printf("Do object value: %s\n", str.c_str());
+#endif
+
+ return doXObject(pdfContext, canvas, *value);
+}
+
+
+//tag MP Designate a marked-content point. tag is a name object indicating the role or
+//significance of the point.
+PdfResult PdfOp_MP(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//tag properties DP Designate a marked-content point with an associated property list. tag is a
+//name object indicating the role or significance of the point; properties is
+//either an inline dictionary containing the property list or a name object
+//associated with it in the Properties subdictionary of the current resource
+//dictionary (see Section 9.5.1, “Property Lists”).
+PdfResult PdfOp_DP(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//tag BMC Begin a marked-content sequence terminated by a balancing EMC operator.
+//tag is a name object indicating the role or significance of the sequence.
+PdfResult PdfOp_BMC(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//tag properties BDC Begin a marked-content sequence with an associated property list, terminated
+//by a balancing EMCoperator. tag is a name object indicating the role or significance of the sequence; propertiesis either an inline dictionary containing the
+//property list or a name object associated with it in the Properties subdictionary of the current resource dictionary (see Section 9.5.1, “Property Lists”).
+PdfResult PdfOp_BDC(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ pdfContext->fVarStack.pop();
+ pdfContext->fVarStack.pop();
+
+ return kNYI_PdfResult;
+}
+
+//— EMC End a marked-content sequence begun by a BMC or BDC operator.
+PdfResult PdfOp_EMC(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+ return kNYI_PdfResult;
+}
+
+void initPdfOperatorRenderes() {
+ static bool gInitialized = false;
+ if (gInitialized) {
+ return;
+ }
+
+ gPdfOps["q"] = PdfOp_q;
+ gPdfOps["Q"] = PdfOp_Q;
+ gPdfOps["cm"] = PdfOp_cm;
+
+ gPdfOps["TD"] = PdfOp_TD;
+ gPdfOps["Td"] = PdfOp_Td;
+ gPdfOps["Tm"] = PdfOp_Tm;
+ gPdfOps["T*"] = PdfOp_T_star;
+
+ gPdfOps["m"] = PdfOp_m;
+ gPdfOps["l"] = PdfOp_l;
+ gPdfOps["c"] = PdfOp_c;
+ gPdfOps["v"] = PdfOp_v;
+ gPdfOps["y"] = PdfOp_y;
+ gPdfOps["h"] = PdfOp_h;
+ gPdfOps["re"] = PdfOp_re;
+
+ gPdfOps["S"] = PdfOp_S;
+ gPdfOps["s"] = PdfOp_s;
+ gPdfOps["f"] = PdfOp_f;
+ gPdfOps["F"] = PdfOp_F;
+ gPdfOps["f*"] = PdfOp_f_star;
+ gPdfOps["B"] = PdfOp_B;
+ gPdfOps["B*"] = PdfOp_B_star;
+ gPdfOps["b"] = PdfOp_b;
+ gPdfOps["b*"] = PdfOp_b_star;
+ gPdfOps["n"] = PdfOp_n;
+
+ gPdfOps["BT"] = PdfOp_BT;
+ gPdfOps["ET"] = PdfOp_ET;
+
+ gPdfOps["Tj"] = PdfOp_Tj;
+ gPdfOps["'"] = PdfOp_quote;
+ gPdfOps["\""] = PdfOp_doublequote;
+ gPdfOps["TJ"] = PdfOp_TJ;
+
+ gPdfOps["CS"] = PdfOp_CS;
+ gPdfOps["cs"] = PdfOp_cs;
+ gPdfOps["SC"] = PdfOp_SC;
+ gPdfOps["SCN"] = PdfOp_SCN;
+ gPdfOps["sc"] = PdfOp_sc;
+ gPdfOps["scn"] = PdfOp_scn;
+ gPdfOps["G"] = PdfOp_G;
+ gPdfOps["g"] = PdfOp_g;
+ gPdfOps["RG"] = PdfOp_RG;
+ gPdfOps["rg"] = PdfOp_rg;
+ gPdfOps["K"] = PdfOp_K;
+ gPdfOps["k"] = PdfOp_k;
+
+ gPdfOps["W"] = PdfOp_W;
+ gPdfOps["W*"] = PdfOp_W_star;
+
+ gPdfOps["BX"] = PdfOp_BX;
+ gPdfOps["EX"] = PdfOp_EX;
+
+ gPdfOps["BI"] = PdfOp_BI;
+ gPdfOps["ID"] = PdfOp_ID;
+ gPdfOps["EI"] = PdfOp_EI;
+
+ gPdfOps["w"] = PdfOp_w;
+ gPdfOps["J"] = PdfOp_J;
+ gPdfOps["j"] = PdfOp_j;
+ gPdfOps["M"] = PdfOp_M;
+ gPdfOps["d"] = PdfOp_d;
+ gPdfOps["ri"] = PdfOp_ri;
+ gPdfOps["i"] = PdfOp_i;
+ gPdfOps["gs"] = PdfOp_gs;
+
+ gPdfOps["Tc"] = PdfOp_Tc;
+ gPdfOps["Tw"] = PdfOp_Tw;
+ gPdfOps["Tz"] = PdfOp_Tz;
+ gPdfOps["TL"] = PdfOp_TL;
+ gPdfOps["Tf"] = PdfOp_Tf;
+ gPdfOps["Tr"] = PdfOp_Tr;
+ gPdfOps["Ts"] = PdfOp_Ts;
+
+ gPdfOps["d0"] = PdfOp_d0;
+ gPdfOps["d1"] = PdfOp_d1;
+
+ gPdfOps["sh"] = PdfOp_sh;
+
+ gPdfOps["Do"] = PdfOp_Do;
+
+ gPdfOps["MP"] = PdfOp_MP;
+ gPdfOps["DP"] = PdfOp_DP;
+ gPdfOps["BMC"] = PdfOp_BMC;
+ gPdfOps["BDC"] = PdfOp_BDC;
+ gPdfOps["EMC"] = PdfOp_EMC;
+
+ gInitialized = true;
+}
+
+void reportPdfRenderStats() {
+ std::map<std::string, int>::iterator iter;
+
+ for (int i = 0 ; i < kCount_PdfResult; i++) {
+ for (iter = gRenderStats[i].begin(); iter != gRenderStats[i].end(); ++iter) {
+ printf("%s: %s -> count %i\n", gRenderStatsNames[i], iter->first.c_str(), iter->second);
+ }
+ }
+}
+
+PdfResult PdfMainLooper::consumeToken(PdfToken& token) {
+ if( token.eType == ePdfContentsType_Keyword )
+ {
+ // TODO(edisonn): log trace flag (verbose, error, info, warning, ...)
+#ifdef PDF_TRACE
+ printf("KEYWORD: %s\n", token.pszToken);
+#endif
+ PdfOperatorRenderer pdfOperatorRenderer = gPdfOps[token.pszToken];
+ if (pdfOperatorRenderer) {
+ // caller, main work is done by pdfOperatorRenderer(...)
+ PdfTokenLooper* childLooper = NULL;
+ gRenderStats[pdfOperatorRenderer(fPdfContext, fCanvas, &childLooper)][token.pszToken]++;
+
+ if (childLooper) {
+ childLooper->setUp(this);
+ childLooper->loop();
+ delete childLooper;
+ }
+ } else {
+ gRenderStats[kUnsupported_PdfResult][token.pszToken]++;
+ }
+ }
+ else if ( token.eType == ePdfContentsType_Variant )
+ {
+#ifdef PDF_TRACE
+ std::string _var;
+ token.var.ToString(_var);
+ printf("var: %s\n", _var.c_str());
+#endif
+ fPdfContext->fVarStack.push( token.var );
+ }
+ else if ( token.eType == ePdfContentsType_ImageData) {
+ // TODO(edisonn): implement inline image.
+ }
+ else {
+ return kIgnoreError_PdfResult;
+ }
+ return kOK_PdfResult;
+}
+
+void PdfMainLooper::loop() {
+ PdfToken token;
+ while (readToken(fTokenizer, &token)) {
+ consumeToken(token);
+ }
+}
+
+PdfResult PdfInlineImageLooper::consumeToken(PdfToken& token) {
+ //pdfContext.fInlineImage.fKeyValuePairs[key] = value;
+ return kNYI_PdfResult;
+}
+
+void PdfInlineImageLooper::loop() {
+ PdfToken token;
+ while (readToken(fTokenizer, &token)) {
+ if (token.eType == ePdfContentsType_Keyword && strcmp(token.pszToken, "BX") == 0) {
+ PdfTokenLooper* looper = new PdfCompatibilitySectionLooper();
+ looper->setUp(this);
+ looper->loop();
+ } else {
+ if (token.eType == ePdfContentsType_Keyword && strcmp(token.pszToken, "EI") == 0) {
+ done();
+ return;
+ }
+
+ consumeToken(token);
+ }
+ }
+ // TODO(edisonn): report error/warning, EOF without EI.
+}
+
+PdfResult PdfInlineImageLooper::done() {
+
+ // TODO(edisonn): long to short names
+ // TODO(edisonn): set properties in a map
+ // TODO(edisonn): extract bitmap stream, check if PoDoFo has public utilities to uncompress
+ // the stream.
+
+ SkBitmap bitmap;
+ setup_bitmap(&bitmap, 50, 50, SK_ColorRED);
+
+ // TODO(edisonn): matrix use.
+ // Draw dummy red square, to show the prezence of the inline image.
+ fCanvas->drawBitmap(bitmap,
+ SkDoubleToScalar(0),
+ SkDoubleToScalar(0),
+ NULL);
+ return kNYI_PdfResult;
+}
+
+PdfResult PdfCompatibilitySectionLooper::consumeToken(PdfToken& token) {
+ return fParent->consumeToken(token);
+}
+
+void PdfCompatibilitySectionLooper::loop() {
+ // TODO(edisonn): save stacks position, or create a new stack?
+ // TODO(edisonn): what happens if we pop out more variables then when we started?
+ // restore them? fail? We could create a new operands stack for every new BX/EX section,
+ // pop-ing too much will not affect outside the section.
+ PdfToken token;
+ while (readToken(fTokenizer, &token)) {
+ if (token.eType == ePdfContentsType_Keyword && strcmp(token.pszToken, "BX") == 0) {
+ PdfTokenLooper* looper = new PdfCompatibilitySectionLooper();
+ looper->setUp(this);
+ looper->loop();
+ delete looper;
+ } else {
+ if (token.eType == ePdfContentsType_Keyword && strcmp(token.pszToken, "EX") == 0) break;
+ fParent->consumeToken(token);
+ }
+ }
+ // TODO(edisonn): restore stack.
+}
+
+// TODO(edisonn): fix PoDoFo load ~/crashing/Shading.pdf
+// TODO(edisonn): Add API for Forms viewing and editing
+// e.g. SkBitmap getPage(int page);
+// int formsCount();
+// SkForm getForm(int formID); // SkForm(SkRect, .. other data)
+// TODO (edisonn): Add intend when loading pdf, for example: for viewing, parsing all content, ...
+// if we load the first page, and we zoom to fit to screen horizontally, then load only those
+// resources needed, so the preview is fast.
+// TODO (edisonn): hide parser/tokenizer behind and interface and a query language, and resolve
+// references automatically.
+class SkPdfViewer : public SkRefCnt {
+public:
+
+ bool load(const SkString inputFileName, SkPicture* out) {
+
+ initPdfOperatorRenderes();
+
+ try
+ {
+ std::cout << "Init: " << inputFileName.c_str() << std::endl;
+
+ PdfMemDocument doc(inputFileName.c_str());
+ if( !doc.GetPageCount() )
+ {
+ std::cout << "ERROR: Empty Document" << inputFileName.c_str() << std::endl;
+ return false;
+ } else {
+
+ for (int pn = 0; pn < doc.GetPageCount(); ++pn) {
+ PoDoFo::PdfPage* page = doc.GetPage(pn);
+ PdfRect rect = page->GetMediaBox();
+#ifdef PDF_TRACE
+ printf("Page Width: %f, Page Height: %f\n", rect.GetWidth(), rect.GetHeight());
+#endif
+
+ // TODO(edisonn): page->GetCropBox(), page->GetTrimBox() ... how to use?
+
+ SkBitmap bitmap;
+#ifdef PDF_DEBUG_3X
+ setup_bitmap(&bitmap, 3*rect.GetWidth(), 3*rect.GetHeight());
+#else
+ setup_bitmap(&bitmap, rect.GetWidth(), rect.GetHeight());
+#endif
+ SkAutoTUnref<SkDevice> device(SkNEW_ARGS(SkDevice, (bitmap)));
+ SkCanvas canvas(device);
+
+
+ const char* pszToken = NULL;
+ PdfVariant var;
+ EPdfContentsType eType;
+
+ PdfContentsTokenizer tokenizer( page );
+
+ PdfContext pdfContext;
+ pdfContext.fPdfPage = page;
+ pdfContext.fPdfDoc = &doc;
+ pdfContext.fOriginalMatrix = SkMatrix::I();
+ pdfContext.fGraphicsState.fObjectWithResources = pdfContext.fPdfPage->GetObject();
+
+ gPdfContext = &pdfContext;
+ gDumpBitmap = &bitmap;
+ gDumpCanvas = &canvas;
+
+
+ // TODO(edisonn): get matrix stuff right.
+ // TODO(edisonn): add DPI/scale/zoom.
+ SkScalar z = SkIntToScalar(0);
+ SkScalar w = SkDoubleToScalar(rect.GetWidth());
+ SkScalar h = SkDoubleToScalar(rect.GetHeight());
+
+ SkPoint pdfSpace[4] = {SkPoint::Make(z, z), SkPoint::Make(w, z), SkPoint::Make(w, h), SkPoint::Make(z, h)};
+// SkPoint skiaSpace[4] = {SkPoint::Make(z, h), SkPoint::Make(w, h), SkPoint::Make(w, z), SkPoint::Make(z, z)};
+
+ // TODO(edisonn): add flag for this app to create sourunding buffer zone
+ // TODO(edisonn): add flagg for no clipping.
+ // Use larger image to make sure we do not draw anything outside of page
+ // could be used in tests.
+
+#ifdef PDF_DEBUG_3X
+ SkPoint skiaSpace[4] = {SkPoint::Make(w+z, h+h), SkPoint::Make(w+w, h+h), SkPoint::Make(w+w, h+z), SkPoint::Make(w+z, h+z)};
+#else
+ SkPoint skiaSpace[4] = {SkPoint::Make(z, h), SkPoint::Make(w, h), SkPoint::Make(w, z), SkPoint::Make(z, z)};
+#endif
+ //SkPoint pdfSpace[2] = {SkPoint::Make(z, z), SkPoint::Make(w, h)};
+ //SkPoint skiaSpace[2] = {SkPoint::Make(w, z), SkPoint::Make(z, h)};
+
+ //SkPoint pdfSpace[2] = {SkPoint::Make(z, z), SkPoint::Make(z, h)};
+ //SkPoint skiaSpace[2] = {SkPoint::Make(z, h), SkPoint::Make(z, z)};
+
+ //SkPoint pdfSpace[3] = {SkPoint::Make(z, z), SkPoint::Make(z, h), SkPoint::Make(w, h)};
+ //SkPoint skiaSpace[3] = {SkPoint::Make(z, h), SkPoint::Make(z, z), SkPoint::Make(w, 0)};
+
+ SkAssertResult(pdfContext.fOriginalMatrix.setPolyToPoly(pdfSpace, skiaSpace, 4));
+ SkTraceMatrix(pdfContext.fOriginalMatrix, "Original matrix");
+
+
+ pdfContext.fGraphicsState.fMatrix = pdfContext.fOriginalMatrix;
+ pdfContext.fGraphicsState.fMatrixTm = pdfContext.fGraphicsState.fMatrix;
+ pdfContext.fGraphicsState.fMatrixTlm = pdfContext.fGraphicsState.fMatrix;
+
+ canvas.setMatrix(pdfContext.fOriginalMatrix);
+
+#ifndef PDF_DEBUG_NO_PAGE_CLIPING
+ canvas.clipRect(SkRect::MakeXYWH(z, z, w, h), SkRegion::kIntersect_Op, true);
+#endif
+
+ PdfMainLooper looper(NULL, &tokenizer, &pdfContext, &canvas);
+ looper.loop();
+
+ canvas.flush();
+
+ SkString out;
+ out.appendf("%s-%i.png", inputFileName.c_str(), pn);
+ SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
+ }
+ return true;
+ }
+ }
+ catch( PdfError & e )
+ {
+ std::cout << "ERROR: PDF can't be parsed!" << inputFileName.c_str() << std::endl;
+ return false;
+ }
+
+ return true;
+ }
+ bool write(void*) const { return false; }
+};
+
+
+
+/**
+ * Given list of directories and files to use as input, expects to find .pdf
+ * files and it will convert them to .png files writing them in the same directory
+ * one file for each page.
+ *
+ * Returns zero exit code if all .pdf files were converted successfully,
+ * otherwise returns error code 1.
+ */
+
+static const char PDF_FILE_EXTENSION[] = "pdf";
+static const char PNG_FILE_EXTENSION[] = "png";
+
+// TODO(edisonn): add ability to write to a new directory.
+static void usage(const char* argv0) {
+ SkDebugf("PDF to PNG rendering tool\n");
+ SkDebugf("\n"
+"Usage: \n"
+" %s <input>... -w <outputDir> \n"
+, argv0);
+ SkDebugf("\n\n");
+ SkDebugf(
+" input: A list of directories and files to use as input. Files are\n"
+" expected to have the .skp extension.\n\n");
+ SkDebugf(
+" outputDir: directory to write the rendered pdfs.\n\n");
+ SkDebugf("\n");
+}
+
+/** Replaces the extension of a file.
+ * @param path File name whose extension will be changed.
+ * @param old_extension The old extension.
+ * @param new_extension The new extension.
+ * @returns false if the file did not has the expected extension.
+ * if false is returned, contents of path are undefined.
+ */
+static bool replace_filename_extension(SkString* path,
+ const char old_extension[],
+ const char new_extension[]) {
+ if (path->endsWith(old_extension)) {
+ path->remove(path->size() - strlen(old_extension),
+ strlen(old_extension));
+ if (!path->endsWith(".")) {
+ return false;
+ }
+ path->append(new_extension);
+ return true;
+ }
+ return false;
+}
+
+/** Builds the output filename. path = dir/name, and it replaces expected
+ * .skp extension with .pdf extention.
+ * @param path Output filename.
+ * @param name The name of the file.
+ * @returns false if the file did not has the expected extension.
+ * if false is returned, contents of path are undefined.
+ */
+static bool make_output_filepath(SkString* path, const SkString& dir,
+ const SkString& name) {
+ sk_tools::make_filepath(path, dir, name);
+ return replace_filename_extension(path,
+ PDF_FILE_EXTENSION,
+ PNG_FILE_EXTENSION);
+}
+
+/** Write the output of pdf renderer to a file.
+ * @param outputDir Output dir.
+ * @param inputFilename The skp file that was read.
+ * @param renderer The object responsible to write the pdf file.
+ */
+static bool write_output(const SkString& outputDir,
+ const SkString& inputFilename,
+ const SkPdfViewer& renderer) {
+ if (outputDir.isEmpty()) {
+ SkDynamicMemoryWStream stream;
+ renderer.write(&stream);
+ return true;
+ }
+
+ SkString outputPath;
+ if (!make_output_filepath(&outputPath, outputDir, inputFilename)) {
+ return false;
+ }
+
+ SkFILEWStream stream(outputPath.c_str());
+ if (!stream.isValid()) {
+ SkDebugf("Could not write to file %s\n", outputPath.c_str());
+ return false;
+ }
+ renderer.write(&stream);
+
+ return true;
+}
+
+/** Reads an skp file, renders it to pdf and writes the output to a pdf file
+ * @param inputPath The skp file to be read.
+ * @param outputDir Output dir.
+ * @param renderer The object responsible to render the skp object into pdf.
+ */
+static bool parse_pdf(const SkString& inputPath, const SkString& outputDir,
+ SkPdfViewer& renderer) {
+ SkString inputFilename;
+ sk_tools::get_basename(&inputFilename, inputPath);
+
+ SkFILEStream inputStream;
+ inputStream.setPath(inputPath.c_str());
+ if (!inputStream.isValid()) {
+ SkDebugf("Could not open file %s\n", inputPath.c_str());
+ return false;
+ }
+
+ bool success = false;
+
+ success = renderer.load(inputPath, NULL);
+
+
+// success = write_output(outputDir, inputFilename, renderer);
+
+ //renderer.end();
+ return success;
+}
+
+/** For each file in the directory or for the file passed in input, call
+ * parse_pdf.
+ * @param input A directory or an pdf file.
+ * @param outputDir Output dir.
+ * @param renderer The object responsible to render the skp object into pdf.
+ */
+static int process_input(const SkString& input, const SkString& outputDir,
+ SkPdfViewer& renderer) {
+ int failures = 0;
+ if (sk_isdir(input.c_str())) {
+ SkOSFile::Iter iter(input.c_str(), PDF_FILE_EXTENSION);
+ SkString inputFilename;
+ while (iter.next(&inputFilename)) {
+ SkString inputPath;
+ sk_tools::make_filepath(&inputPath, input, inputFilename);
+ if (!parse_pdf(inputPath, outputDir, renderer)) {
+ ++failures;
+ }
+ }
+ } else {
+ SkString inputPath(input);
+ if (!parse_pdf(inputPath, outputDir, renderer)) {
+ ++failures;
+ }
+ }
+ return failures;
+}
+
+static void parse_commandline(int argc, char* const argv[],
+ SkTArray<SkString>* inputs,
+ SkString* outputDir) {
+ const char* argv0 = argv[0];
+ char* const* stop = argv + argc;
+
+ for (++argv; argv < stop; ++argv) {
+ if ((0 == strcmp(*argv, "-h")) || (0 == strcmp(*argv, "--help"))) {
+ usage(argv0);
+ exit(-1);
+ } else if (0 == strcmp(*argv, "-w")) {
+ ++argv;
+ if (argv >= stop) {
+ SkDebugf("Missing outputDir for -w\n");
+ usage(argv0);
+ exit(-1);
+ }
+ *outputDir = SkString(*argv);
+ } else {
+ inputs->push_back(SkString(*argv));
+ }
+ }
+
+ if (inputs->count() < 1) {
+ usage(argv0);
+ exit(-1);
+ }
+}
+
+int tool_main(int argc, char** argv);
+int tool_main(int argc, char** argv) {
+ SkAutoGraphics ag;
+ SkTArray<SkString> inputs;
+
+ SkAutoTUnref<SkPdfViewer>
+ renderer(SkNEW(SkPdfViewer));
+ SkASSERT(renderer.get());
+
+ SkString outputDir;
+ parse_commandline(argc, argv, &inputs, &outputDir);
+
+ int failures = 0;
+ for (int i = 0; i < inputs.count(); i ++) {
+ failures += process_input(inputs[i], outputDir, *renderer);
+ }
+
+ reportPdfRenderStats();
+
+ if (failures != 0) {
+ SkDebugf("Failed to render %i PDFs.\n", failures);
+ return 1;
+ }
+
+ return 0;
+}
+
+#if !defined SK_BUILD_FOR_IOS
+int main(int argc, char * const argv[]) {
+ return tool_main(argc, (char**) argv);
+}
+#endif
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