refactoring for pdf viewer lib

experimental/PdfViewer/SkPdfParser.cpp

+/*
+ * 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 "SkForceLinking.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"
+using namespace PoDoFo;
+
+
+__SK_FORCE_IMAGE_DECODER_LINKING;
+
+// TODO(edisonn): tool, show what objects were read at least, show the ones not even read
+// keep for each object pos in file
+// plug in for VS? syntax coloring, show selected object ... from the text, or from rendered x,y
+
+// TODO(edisonn): security - validate all the user input, all pdf!
+
+
+#include "SkPdfHeaders_autogen.h"
+#include "SkPdfPodofoMapper_autogen.h"
+#include "SkPdfParser.h"
+
+#include "SkPdfBasics.h"
+#include "SkPdfUtils.h"
+
+#include "SkPdfFont.h"
+
+bool skpdfmap(const PdfMemDocument& podofoDoc, const PdfObject& podofoObj, SkPdfObject** out) {
+    return mapObject(podofoDoc, podofoObj, out);
+}
+
+
+/*
+ * TODO(edisonn):
+ * - all font types and all ppdf font features
+ *      - word spacing
+ *      - load font for baidu.pdf
+ *      - load font for youtube.pdf
+ *      - parser for pdf from the definition already available in pdfspec_autogen.py
+ *      - all docs from ~/work
+ * - encapsulate podofo in the pdf api so the skpdf does not know anything about podofo ... in progress
+ * - load gs/ especially smask and already known prop (skp) ... in progress
+ * - wrapper on classes for customizations? e.g.
+ * SkPdfPageObjectVanila - has only the basic loaders/getters
+ * SkPdfPageObject : public SkPdfPageObjectVanila, extends, and I can add customizations here
+ * need to find a nice object model for all this with constructors and factories
+ * - deal with inheritable automatically ?
+ * - deal with specific type in spec directly, add all dictionary types to known types
+*/
+
+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;
+    }
+}
+
+const PdfObject* resolveReferenceObject(const PdfMemDocument* pdfDoc,
+                                  const PdfObject* obj,
+                                  bool resolveOneElementArrays) {
+    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;
+}
+
+SkMatrix SkMatrixFromPdfArray(SkPdfArray* pdfArray) {
+    double array[6];
+
+    // TODO(edisonn): security issue, ret if size() != 6
+    for (int i = 0; i < 6; i++) {
+        const PdfObject* elem = resolveReferenceObject(pdfArray->doc(), (*pdfArray)[i]->podofo());
+        if (elem == NULL || (!elem->IsReal() && !elem->IsNumber())) {
+            return SkMatrix::I();  // TODO(edisonn): report issue
+        }
+        array[i] = elem->GetReal();
+    }
+
+    return SkMatrixFromPdfMatrix(array);
+}
+
+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(SkPdfTokenizer* fTokenizer, PdfToken* token) {
+    bool ret = fTokenizer->readToken(token);
+
+    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->fType == kKeyword_TokenType) {
+        strcpy(gLastKeyword, token->fKeyword);
+        gLastOpKeyword = gReadOp;
+    } else {
+        strcpy(gLastKeyword, "");
+    }
+#endif
+
+    return ret;
+}
+
+
+
+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"
+};
+
+static SkTypeface* SkTypefaceFromPdfFont(PdfFont* font) {
+    if (font == NULL) {
+        return SkTypeface::CreateFromName("Times New Roman", SkTypeface::kNormal);
+    }
+
+    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)));
+}
+
+PdfResult DrawText(PdfContext* pdfContext,
+                   const SkPdfObject* str,
+                   SkCanvas* canvas)
+{
+
+    SkPdfFont* skfont = pdfContext->fGraphicsState.fSkFont;
+    if (skfont == NULL) {
+        skfont = SkPdfFont::Default();
+    }
+
+    SkUnencodedText binary(str);
+
+    SkDecodedText decoded;
+
+    if (skfont->encoding() == NULL) {
+        // TODO(edisonn): report warning
+        return kNYI_PdfResult;
+    }
+
+    skfont->encoding()->decodeText(binary, &decoded);
+
+    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 && fCurFont->GetFontScale() != 0) {
+//        paint.setTextScaleX(SkFloatToScalar(fCurFont->GetFontScale() / 100.0));
+//    }
+
+    pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
+
+    canvas->save();
+
+#if 1
+    SkMatrix matrix = pdfContext->fGraphicsState.fMatrixTm;
+
+    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");
+#endif
+
+    skfont->drawText(decoded, &paint, pdfContext, canvas, &pdfContext->fGraphicsState.fMatrixTm);
+    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(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        long* data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)));
+
+    if (value == NULL || !value->IsNumber()) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    *data = value->GetNumber();
+    return true;
+}
+
+bool LongFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        long* data) {
+    if (LongFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return LongFromDictionary(pdfDoc, dict, abr, data);
+}
+
+bool DoubleFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          double* data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)));
+
+    if (value == NULL || (!value->IsReal() && !value->IsNumber())) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    *data = value->GetReal();
+    return true;
+}
+
+bool DoubleFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          const char* abr,
+                          double* data) {
+    if (DoubleFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return DoubleFromDictionary(pdfDoc, dict, abr, data);
+}
+
+
+bool BoolFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        bool* data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)));
+
+    if (value == NULL || !value->IsBool()) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    *data = value->GetBool();
+    return true;
+}
+
+bool BoolFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        bool* data) {
+    if (BoolFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return BoolFromDictionary(pdfDoc, dict, abr, data);
+}
+
+bool NameFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        std::string* data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL || !value->IsName()) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    *data = value->GetName().GetName();
+    return true;
+}
+
+bool NameFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        std::string* data) {
+    if (NameFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return NameFromDictionary(pdfDoc, dict, abr, data);
+}
+
+bool StringFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          std::string* data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL || (!value->IsString() && !value->IsHexString())) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    *data = value->GetString().GetString();
+    return true;
+}
+
+bool StringFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          const char* abr,
+                          std::string* data) {
+    if (StringFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return StringFromDictionary(pdfDoc, dict, abr, data);
+}
+
+/*
+bool ArrayFromDictionary(const PdfMemDocument* pdfDoc,
+                              const PdfDictionary& dict,
+                              const char* key,
+                              SkPdfArray** data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL || !value->IsArray()) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    return mapArray(*pdfDoc, *value, data);
+}
+
+
+bool ArrayFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkPdfArray** data) {
+    if (ArrayFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return ArrayFromDictionary(pdfDoc, dict, abr, data);
+}
+
+
+bool DictionaryFromDictionary(const PdfMemDocument* pdfDoc,
+                              const PdfDictionary& dict,
+                              const char* key,
+                              SkPdfDictionary** data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL || !value->IsDictionary()) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+
+    return mapDictionary(*pdfDoc, *value, data);
+}
+
+bool DictionaryFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkPdfDictionary** data) {
+    if (DictionaryFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return DictionaryFromDictionary(pdfDoc, dict, abr, data);
+}
+
+
+bool ObjectFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          SkPdfObject** data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+    return mapObject(*pdfDoc, *value, data);
+}
+
+bool ObjectFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkPdfObject** data) {
+    if (ObjectFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return ObjectFromDictionary(pdfDoc, dict, abr, data);
+}
+
+bool StreamFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          SkPdfStream** data) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                              dict.GetKey(PdfName(key)),
+                                              true);
+    if (value == NULL) {
+        return false;
+    }
+    if (data == NULL) {
+        return true;
+    }
+    return mapStream(*pdfDoc, *value, data);
+}
+
+bool StreamFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkPdfStream** data) {
+    if (StreamFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return StreamFromDictionary(pdfDoc, dict, abr, data);
+}
+*/
+
+// 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, const SkPdfImageDictionary* image, bool transparencyMask) {
+    if (image == NULL || !image->valid()) {
+        // TODO(edisonn): report warning to be used in testing.
+        return SkBitmap();
+    }
+
+    // TODO (edisonn): Fast Jpeg(DCTDecode) draw, or fast PNG(FlateDecode) draw ...
+//    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]);
+//    }
+//    if (value && value->IsName() && value->GetName().GetName() == "DCTDecode") {
+//        SkStream stream = SkStream::
+//        SkImageDecoder::Factory()
+//    }
+
+    long bpc = image->BitsPerComponent();
+    long width = image->Width();
+    long height = image->Height();
+    std::string colorSpace = "DeviceRGB";
+
+    // TODO(edisonn): color space can be an array too!
+    if (image->isColorSpaceAName()) {
+        colorSpace = image->getColorSpaceAsName();
+    }
+
+/*
+    bool imageMask = image->imageMask();
+
+    if (imageMask) {
+        if (bpc != 0 && bpc != 1) {
+            // TODO(edisonn): report warning to be used in testing.
+            return SkBitmap();
+        }
+        bpc = 1;
+    }
+*/
+
+    const PdfObject* obj = image->podofo();
+
+    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, const SkPdfImageDictionary* obj) {
+    const PdfObject* sMask = resolveReferenceObject(&pdfContext->fPdfDoc->podofo(),
+                                              obj->podofo()->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) {
+        SkPdfImageDictionary skxobjmask(&pdfContext->fPdfDoc->podofo(), sMask);
+        return getImageFromObject(pdfContext, &skxobjmask, true);
+    }
+
+    // TODO(edisonn): implement GS SMask. Default to empty right now.
+    return pdfContext->fGraphicsState.fSMask;
+}
+
+PdfResult doXObject_Image(PdfContext* pdfContext, SkCanvas* canvas, const SkPdfImageDictionary* skpdfimage) {
+    if (skpdfimage == NULL || !skpdfimage->valid()) {
+        return kIgnoreError_PdfResult;
+    }
+
+    SkBitmap image = getImageFromObject(pdfContext, skpdfimage, false);
+    SkBitmap sMask = getSmaskFromObject(pdfContext, skpdfimage);
+
+    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;
+        pdfContext->fGraphicsState.applyGraphicsState(&xfer, false);
+        xfer.setXfermodeMode(SkXfermode::kSrcOut_Mode); // SkXfermode::kSdtOut_Mode
+        canvas->drawBitmapRect(sMask, dst, &xfer);
+        canvas->restore();
+    }
+
+    canvas->restore();
+
+    return kPartial_PdfResult;
+}
+
+bool SkMatrixFromDictionary(const PdfMemDocument* pdfDoc,
+                            const PdfDictionary& dict,
+                            const char* key,
+                            SkMatrix** matrix) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                                    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++) {
+        const PdfObject* elem = resolveReferenceObject(pdfDoc, &value->GetArray()[i]);
+        if (elem == NULL || (!elem->IsReal() && !elem->IsNumber())) {
+            return false;
+        }
+        array[i] = elem->GetReal();
+    }
+
+    *matrix = new SkMatrix();
+    **matrix = SkMatrixFromPdfMatrix(array);
+    return true;
+}
+
+bool SkMatrixFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkMatrix** data) {
+    if (SkMatrixFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return SkMatrixFromDictionary(pdfDoc, dict, abr, data);
+
+}
+
+bool SkRectFromDictionary(const PdfMemDocument* pdfDoc,
+                          const PdfDictionary& dict,
+                          const char* key,
+                          SkRect** rect) {
+    const PdfObject* value = resolveReferenceObject(pdfDoc,
+                                                    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++) {
+        const PdfObject* elem = resolveReferenceObject(pdfDoc, &value->GetArray()[i]);
+        if (elem == NULL || (!elem->IsReal() && !elem->IsNumber())) {
+            return false;
+        }
+        array[i] = elem->GetReal();
+    }
+
+    *rect = new SkRect();
+    **rect = SkRect::MakeLTRB(SkDoubleToScalar(array[0]),
+                              SkDoubleToScalar(array[1]),
+                              SkDoubleToScalar(array[2]),
+                              SkDoubleToScalar(array[3]));
+    return true;
+}
+
+bool SkRectFromDictionary(const PdfMemDocument* pdfDoc,
+                        const PdfDictionary& dict,
+                        const char* key,
+                        const char* abr,
+                        SkRect** data) {
+    if (SkRectFromDictionary(pdfDoc, dict, key, data)) return true;
+    if (abr == NULL || *abr == '\0') return false;
+    return SkRectFromDictionary(pdfDoc, dict, abr, data);
+
+}
+
+
+SkPdfObject* get(const SkPdfObject* obj, const char* key, const char* abr = "") {
+    SkPdfObject* ret = NULL;
+    if (obj == NULL) return NULL;
+    const SkPdfDictionary* dict = obj->asDictionary();
+    if (dict == NULL) return NULL;
+    if (!dict->podofo()->IsDictionary()) return NULL;
+    ObjectFromDictionary(dict->doc(), dict->podofo()->GetDictionary(), key, abr, &ret);
+    return ret;
+}
+
+PdfResult doXObject_Form(PdfContext* pdfContext, SkCanvas* canvas, SkPdfType1FormDictionary* skobj) {
+    if (!skobj || !skobj->podofo() || !skobj->podofo()->HasStream() || skobj->podofo()->GetStream() == NULL || skobj->podofo()->GetStream()->GetLength() == 0) {
+        return kOK_PdfResult;
+    }
+
+    PdfOp_q(pdfContext, canvas, NULL);
+    canvas->save();
+
+
+    if (skobj->Resources()) {
+        pdfContext->fGraphicsState.fResources = skobj->Resources();
+    }
+
+    SkTraceMatrix(pdfContext->fGraphicsState.fMatrix, "Current matrix");
+
+    if (skobj->Matrix()) {
+        pdfContext->fGraphicsState.fMatrix.preConcat(*skobj->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);
+
+    if (skobj->BBox()) {
+        canvas->clipRect(*skobj->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.
+
+    PdfResult ret = kPartial_PdfResult;
+    SkPdfTokenizer tokenizer(skobj);
+    PdfMainLooper looper(NULL, &tokenizer, pdfContext, canvas);
+    looper.loop();
+
+    // 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, const PdfObject& obj) {
+    return kNYI_PdfResult;
+}
+
+PdfResult doType3Char(PdfContext* pdfContext, SkCanvas* canvas, SkPdfObject* skobj, SkRect bBox, SkMatrix matrix, double textSize) {
+    if (!skobj || !skobj->podofo() || !skobj->podofo()->HasStream() || skobj->podofo()->GetStream() == NULL || skobj->podofo()->GetStream()->GetLength() == 0) {
+        return kOK_PdfResult;
+    }
+
+    PdfOp_q(pdfContext, canvas, NULL);
+    canvas->save();
+
+    pdfContext->fGraphicsState.fMatrixTm.preConcat(matrix);
+    pdfContext->fGraphicsState.fMatrixTm.preScale(SkDoubleToScalar(textSize), SkDoubleToScalar(textSize));
+
+    pdfContext->fGraphicsState.fMatrix = pdfContext->fGraphicsState.fMatrixTm;
+    pdfContext->fGraphicsState.fMatrixTlm = pdfContext->fGraphicsState.fMatrix;
+
+    SkTraceMatrix(pdfContext->fGraphicsState.fMatrix, "Total matrix");
+
+    canvas->setMatrix(pdfContext->fGraphicsState.fMatrix);
+
+    SkRect rm = bBox;
+    pdfContext->fGraphicsState.fMatrix.mapRect(&rm);
+
+    SkTraceRect(rm, "bbox mapped");
+
+    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.
+
+    PdfResult ret = kPartial_PdfResult;
+    SkPdfTokenizer tokenizer(skobj);
+    PdfMainLooper looper(NULL, &tokenizer, pdfContext, canvas);
+    looper.loop();
+
+    // 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;
+}
+
+
+// TODO(edisonn): faster, have the property on the SkPdfObject itself?
+std::set<const PdfObject*> gInRendering;
+
+class CheckRecursiveRendering {
+    const PdfObject& fObj;
+public:
+    CheckRecursiveRendering(const PdfObject& obj) : fObj(obj) {
+        gInRendering.insert(&obj);
+    }
+
+    ~CheckRecursiveRendering() {
+        //SkASSERT(fObj.fInRendering);
+        gInRendering.erase(&fObj);
+    }
+
+    static bool IsInRendering(const PdfObject& obj) {
+        return gInRendering.find(&obj) != gInRendering.end();
+    }
+};
+
+PdfResult doXObject(PdfContext* pdfContext, SkCanvas* canvas, const SkPdfObject& obj) {
+    if (CheckRecursiveRendering::IsInRendering(*obj.podofo())) {
+        // Oops, corrupt PDF!
+        return kIgnoreError_PdfResult;
+    }
+
+    CheckRecursiveRendering checkRecursion(*obj.podofo());
+
+    // TODO(edisonn): check type
+    SkPdfXObjectDictionary* skobj = NULL;
+    if (!mapXObjectDictionary(obj, &skobj)) return kIgnoreError_PdfResult;
+
+    if (!skobj || !skobj->valid()) return kIgnoreError_PdfResult;
+
+    PdfResult ret = kIgnoreError_PdfResult;
+    switch (skobj->getType())
+    {
+        case kImageDictionary_SkPdfObjectType:
+            ret = doXObject_Image(pdfContext, canvas, skobj->asImageDictionary());
+            break;
+        case kType1FormDictionary_SkPdfObjectType:
+            ret = doXObject_Form(pdfContext, canvas, skobj->asType1FormDictionary());
+            break;
+        //case kObjectDictionaryXObjectPS_SkPdfObjectType:
+            //return doXObject_PS(skxobj.asPS());
+    }
+
+    delete skobj;
+    return ret;
+}
+
+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->fObjectStack.top()->asNumber()->value();
+        pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+
+    pdfContext->fGraphicsState.fTextLeading = ty;
+
+    return kOK_PdfResult;
+}
+
+PdfResult PdfOp_Td(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    double ty = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double tx = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double tx = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+
+    // TODO(edisonn): Create factory methods or constructors so podofo is hidden
+    PdfObject _ty(PdfVariant(-ty));
+    pdfContext->fObjectStack.push(new SkPdfNumber(&pdfContext->fPdfDoc->podofo(), &_ty));
+
+    PdfOp_TL(pdfContext, canvas, looper);
+
+    PdfObject vtx(PdfVariant(-(-tx)));  // TODO(edisonn): Hmm, the compiler thinks I have here a function pointer if we use (tx), but not -(-tx)
+    pdfContext->fObjectStack.push(new SkPdfNumber(&pdfContext->fPdfDoc->podofo(), &vtx));
+
+    PdfObject vty(PdfVariant(-(-ty)));
+    pdfContext->fObjectStack.push(new SkPdfNumber(&pdfContext->fPdfDoc->podofo(), &vty));
+
+    return PdfOp_Td(pdfContext, canvas, looper);
+}
+
+PdfResult PdfOp_Tm(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    double f = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double e = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double d = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double c = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double b = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.pop();
+    double a = pdfContext->fObjectStack.top()->asNumber()->value(); pdfContext->fObjectStack.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) {
+    PdfObject zero(PdfVariant(0.0));
+    PdfObject tl(PdfVariant(-(-pdfContext->fGraphicsState.fTextLeading)));
+
+    pdfContext->fObjectStack.push(new SkPdfNumber(&pdfContext->fPdfDoc->podofo(), &zero));
+    pdfContext->fObjectStack.push(new SkPdfNumber(&pdfContext->fPdfDoc->podofo(), &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->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    pdfContext->fGraphicsState.fCurPosX = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    pdfContext->fGraphicsState.fCurPosX = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x3 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double y2 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x2 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double y1 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x1 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x3 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double y2 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x2 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x3 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double y2 = pdfContext->fGraphicsState.fCurPosY;
+    double x2 = pdfContext->fGraphicsState.fCurPosX;
+    double y1 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.pop();
+    double x1 = pdfContext->fObjectStack.top()->asNumber()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();      pdfContext->fObjectStack.pop();
+    double width = pdfContext->fObjectStack.top()->asNumber()->value();       pdfContext->fObjectStack.pop();
+    double y = pdfContext->fObjectStack.top()->asNumber()->value();           pdfContext->fObjectStack.pop();
+    double x = pdfContext->fObjectStack.top()->asNumber()->value();           pdfContext->fObjectStack.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();
+    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;
+
+    SkPoint line[2];
+    if (fill && !stroke && path.isLine(line)) {
+        paint.setStyle(SkPaint::kStroke_Style);
+
+        pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
+        paint.setStrokeWidth(SkDoubleToScalar(0));
+
+        canvas->drawPath(path, paint);
+    } else {
+        if (fill) {
+            paint.setStyle(SkPaint::kFill_Style);
+            if (evenOdd) {
+                path.setFillType(SkPath::kEvenOdd_FillType);
+            }
+
+            pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
+
+            canvas->drawPath(path, paint);
+        }
+
+        if (stroke) {
+            paint.setStyle(SkPaint::kStroke_Style);
+
+            pdfContext->fGraphicsState.applyGraphicsState(&paint, true);
+
+            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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    std::string fontName = pdfContext->fObjectStack.top()->asName()->value();                           pdfContext->fObjectStack.pop();
+
+#ifdef PDF_TRACE
+    printf("font name: %s\n", fontName.c_str());
+    std::string str;
+    pdfContext->fGraphicsState.fResources->podofo()->ToString(str);
+    printf("Print Tf Resources: %s\n", str.c_str());
+    pdfContext->fGraphicsState.fResources->Font()->podofo()->ToString(str);
+    printf("Print Tf Resources/Font: %s\n", str.c_str());
+#endif
+
+    SkPdfFontDictionary* fd = NULL;
+    if (pdfContext->fGraphicsState.fResources->Font()) {
+        SkPdfObject* objFont = pdfContext->fGraphicsState.fResources->Font()->get(fontName.c_str());
+        mapFontDictionary(*objFont, &fd);
+
+#ifdef PDF_TRACE
+        objFont->podofo()->ToString(str);
+        printf("Print Font loaded: %s\n", str.c_str());
+        fd->podofo()->ToString(str);
+        printf("Print Font loaded and resolved and upgraded: %s\n", str.c_str());
+#endif
+
+    }
+
+    SkPdfFont* skfont = SkPdfFont::fontFromPdfDictionary(fd);
+
+    if (skfont) {
+        pdfContext->fGraphicsState.fSkFont = skfont;
+    }
+
+    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->fObjectStack.top(),
+                             canvas);
+    pdfContext->fObjectStack.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;
+    }
+
+    SkPdfObject* str = pdfContext->fObjectStack.top();       pdfContext->fObjectStack.pop();
+    SkPdfObject* ac = pdfContext->fObjectStack.top();        pdfContext->fObjectStack.pop();
+    SkPdfObject* aw = pdfContext->fObjectStack.top();        pdfContext->fObjectStack.pop();
+
+    pdfContext->fObjectStack.push(aw);
+    PdfOp_Tw(pdfContext, canvas, looper);
+
+    pdfContext->fObjectStack.push(ac);
+    PdfOp_Tc(pdfContext, canvas, looper);
+
+    pdfContext->fObjectStack.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;
+    }
+
+    SkPdfArray* array = pdfContext->fObjectStack.top()->asArray();
+    pdfContext->fObjectStack.pop();
+
+    for( int i=0; i<static_cast<int>(array->size()); i++ )
+    {
+        if( (*array)[i]->asString()) {
+            SkPdfObject* obj = (*array)[i];
+            DrawText(pdfContext,
+                     obj,
+                     canvas);
+        } else if ((*array)[i]->asInteger() || (*array)[i]->asNumber()) {
+            double dx = (*array)[i]->asNumber()->value();
+            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->fObjectStack.top()->asName()->value();    pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+        } else {
+            v[i] = pdfContext->fObjectStack.top()->asInteger()->value();   pdfContext->fObjectStack.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->fObjectStack.top()->asName()) {
+        pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    double g = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    double r = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    double y = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    double m = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+    double c = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.pop();
+    //double lineCap = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.pop();
+    //double lineJoin = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.pop();
+    //double miterLimit = pdfContext->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.pop();
+    pdfContext->fObjectStack.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->fObjectStack.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->fObjectStack.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) {
+    std::string name = pdfContext->fObjectStack.top()->asName()->value();    pdfContext->fObjectStack.pop();
+
+#ifdef PDF_TRACE
+    std::string str;
+#endif
+
+    //Next, get the ExtGState Dictionary from the Resource Dictionary:
+    const SkPdfDictionary* extGStateDictionary = pdfContext->fGraphicsState.fResources->ExtGState();
+
+    if (extGStateDictionary == NULL) {
+#ifdef PDF_TRACE
+        printf("ExtGState is NULL!\n");
+#endif
+        return kIgnoreError_PdfResult;
+    }
+
+    SkPdfObject* value = extGStateDictionary->get(name.c_str());
+
+#ifdef PDF_TRACE
+//    value->ToString(str);
+//    printf("gs object value: %s\n", str.c_str());
+#endif
+
+    SkPdfGraphicsStateDictionary* gs = NULL;
+    mapGraphicsStateDictionary(*value, &gs);
+
+    // TODO(edisonn): now load all those properties in graphic state.
+    if (gs == NULL) {
+        return kIgnoreError_PdfResult;
+    }
+
+    if (gs->has_CA()) {
+        pdfContext->fGraphicsState.fStroking.fOpacity = gs->CA();
+    }
+
+    if (gs->has_ca()) {
+        pdfContext->fGraphicsState.fNonStroking.fOpacity = gs->ca();
+    }
+
+    if (gs->has_LW()) {
+        pdfContext->fGraphicsState.fLineWidth = gs->LW();
+    }
+
+
+
+    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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.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->fObjectStack.top()->asNumber()->value();     pdfContext->fObjectStack.pop();
+
+    return kNYI_PdfResult;
+}
+
+//wx wy d0
+PdfResult PdfOp_d0(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+
+    return kNYI_PdfResult;
+}
+
+//wx wy llx lly urx ury d1
+PdfResult PdfOp_d1(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+    pdfContext->fObjectStack.pop();
+
+    return kNYI_PdfResult;
+}
+
+//name sh
+PdfResult PdfOp_sh(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    pdfContext->fObjectStack.pop();
+
+    return kNYI_PdfResult;
+}
+
+//name Do
+PdfResult PdfOp_Do(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
+    std::string name = pdfContext->fObjectStack.top()->asName()->value();    pdfContext->fObjectStack.pop();
+
+    SkPdfDictionary* xObject =  pdfContext->fGraphicsState.fResources->XObject();
+
+    if (xObject == NULL) {
+#ifdef PDF_TRACE
+        printf("XObject is NULL!\n");
+#endif
+        return kIgnoreError_PdfResult;
+    }
+
+    SkPdfObject* value = xObject->get(name.c_str());
+
+#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->fObjectStack.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->fObjectStack.pop();
+    pdfContext->fObjectStack.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->fObjectStack.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->fObjectStack.pop();
+    pdfContext->fObjectStack.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;
+}
+
+class InitPdfOps {
+public:
+    InitPdfOps() {
+        initPdfOperatorRenderes();
+    }
+};
+
+InitPdfOps gInitPdfOps;
+
+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.fType == kKeyword_TokenType)
+    {
+        // TODO(edisonn): log trace flag (verbose, error, info, warning, ...)
+        PdfOperatorRenderer pdfOperatorRenderer = gPdfOps[token.fKeyword];
+        if (pdfOperatorRenderer) {
+            // caller, main work is done by pdfOperatorRenderer(...)
+            PdfTokenLooper* childLooper = NULL;
+            gRenderStats[pdfOperatorRenderer(fPdfContext, fCanvas, &childLooper)][token.fKeyword]++;
+
+            if (childLooper) {
+                childLooper->setUp(this);
+                childLooper->loop();
+                delete childLooper;
+            }
+        } else {
+            gRenderStats[kUnsupported_PdfResult][token.fKeyword]++;
+        }
+    }
+    else if (token.fType == kObject_TokenType)
+    {
+        fPdfContext->fObjectStack.push( token.fObject );
+    }
+    else if ( token.fType == kImageData_TokenType) {
+        // 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.fType == kKeyword_TokenType && strcmp(token.fKeyword, "BX") == 0) {
+            PdfTokenLooper* looper = new PdfCompatibilitySectionLooper();
+            looper->setUp(this);
+            looper->loop();
+        } else {
+            if (token.fType == kKeyword_TokenType && strcmp(token.fKeyword, "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.fType == kKeyword_TokenType && strcmp(token.fKeyword, "BX") == 0) {
+            PdfTokenLooper* looper = new PdfCompatibilitySectionLooper();
+            looper->setUp(this);
+            looper->loop();
+            delete looper;
+        } else {
+            if (token.fType == kKeyword_TokenType && strcmp(token.fKeyword, "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.
+
+bool SkPdfViewer::load(const SkString inputFileName, SkPicture* out) {
+    try
+    {
+        std::cout << "Init: " << inputFileName.c_str() << std::endl;
+
+        SkPdfDoc doc(inputFileName.c_str());
+        if (!doc.pages())
+        {
+            std::cout << "ERROR: Empty Document" << inputFileName.c_str() << std::endl;
+            return false;
+        } else {
+
+            for (int pn = 0; pn < doc.pages(); ++pn) {
+                // TODO(edisonn): implement inheritance properties as per PDF spec
+                //SkRect rect = page->MediaBox();
+                SkRect rect = doc.MediaBox(pn);
+
+    #ifdef PDF_TRACE
+                printf("Page Width: %f, Page Height: %f\n", SkScalarToDouble(rect.width()), SkScalarToDouble(rect.height()));
+    #endif
+
+                // TODO(edisonn): page->GetCropBox(), page->GetTrimBox() ... how to use?
+
+                SkBitmap bitmap;
+    #ifdef PDF_DEBUG_3X
+                setup_bitmap(&bitmap, 3 * (int)SkScalarToDouble(rect.width()), 3 * (int)SkScalarToDouble(rect.height()));
+    #else
+                setup_bitmap(&bitmap, (int)SkScalarToDouble(rect.width()), (int)SkScalarToDouble(rect.height()));
+    #endif
+                SkAutoTUnref<SkDevice> device(SkNEW_ARGS(SkDevice, (bitmap)));
+                SkCanvas canvas(device);
+
+                gDumpBitmap = &bitmap;
+
+                doc.drawPage(pn, &canvas);
+
+                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;
+}
+
+