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Unified Diff: experimental/PdfViewer/SkPdfRenderer.cpp

Issue 59493011: Pdfviewer refactoring. (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Move include/ to inc/ Created 7 years, 1 month ago
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Index: experimental/PdfViewer/SkPdfRenderer.cpp
diff --git a/experimental/PdfViewer/SkPdfRenderer.cpp b/experimental/PdfViewer/SkPdfRenderer.cpp
deleted file mode 100644
index 2d79f13077768ba5c60532455f0d318736d5449d..0000000000000000000000000000000000000000
--- a/experimental/PdfViewer/SkPdfRenderer.cpp
+++ /dev/null
@@ -1,3159 +0,0 @@
-/*
- * 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 "SkPdfRenderer.h"
-
-#include "SkBitmapDevice.h"
-#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 "SkPdfFont.h"
-#include "SkPdfGraphicsState.h"
-#include "SkPdfHeaders_autogen.h"
-#include "SkPdfMapper_autogen.h"
-#include "SkPdfNativeTokenizer.h"
-#include "SkPdfRenderer.h"
-#include "SkPdfReporter.h"
-#include "SkPdfUtils.h"
-#include "SkStream.h"
-#include "SkTypeface.h"
-#include "SkTArray.h"
-#include "SkTDict.h"
-
-// TODO(edisonn): #ifdef these ones, as they are used only for debugging.
-extern "C" SkPdfContext* gPdfContext;
-extern "C" SkBitmap* gDumpBitmap;
-extern "C" SkCanvas* gDumpCanvas;
-
-__SK_FORCE_IMAGE_DECODER_LINKING;
-
-// TODO(edisonn): tool, show what objects were read during rendering - will help to identify
-// features with incomplete implementation
-// TODO(edisonn): security - validate all the user input, all pdf!
-// TODO(edisonn): testability -add option to render without text, or only render text
-
-// Helper macros to load variables from stack, and automatically check their type.
-#define EXPECT_OPERANDS(name,pdfContext,n) \
- bool __failed = pdfContext->fObjectStack.count() < n; \
- SkPdfREPORTCODE(const char* __operator_name = name); \
- SkPdfREPORTCODE((void)__operator_name); \
- SkPdfReportIf(pdfContext->fObjectStack.count() < n, \
- kIgnoreError_SkPdfIssueSeverity, \
- kStackOverflow_SkPdfIssue, \
- "Not enought parameters.", NULL, pdfContext); \
- SkDEBUGCODE(int __cnt = n);
-
-#define POP_OBJ(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- SkPdfNativeObject* name = NULL; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- name = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- }
-
-// TODO(edisonn): make all pop function to use name##_obj
-#define POP_NUMBER(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- double name = 0; \
- SkPdfNativeObject* name##_obj = NULL; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- name##_obj = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!name##_obj || !name##_obj->isNumber()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- name##_obj, \
- SkPdfNativeObject::_kNumber_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- name = name##_obj->numberValue(); \
- } \
- }
-
-#define POP_INTEGER(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- int64_t name = 0; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- SkPdfNativeObject* name##_obj = NULL; \
- if (pdfContext->fObjectStack.count() > 0) { \
- name##_obj = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!name##_obj || !name##_obj->isInteger()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- name##_obj, \
- SkPdfNativeObject::kInteger_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- name = name##_obj->intValue(); \
- } \
- }
-
-#define POP_NUMBER_INTO(pdfContext,var) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- SkPdfNativeObject* tmp = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!tmp || !tmp->isNumber()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- tmp, \
- SkPdfNativeObject::kInteger_PdfObjectType | \
- SkPdfNativeObject::kReal_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- var = tmp->numberValue(); \
- } \
- }
-
-
-#define POP_NAME(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- SkPdfNativeObject* name = NULL; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- SkPdfNativeObject* tmp = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!tmp || !tmp->isName()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- tmp, \
- SkPdfNativeObject::kName_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- name = tmp; \
- } \
- }
-
-#define POP_STRING(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- SkPdfNativeObject* name = NULL; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- SkPdfNativeObject* tmp = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!tmp || !tmp->isAnyString()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- tmp, \
- SkPdfNativeObject::kString_PdfObjectType | \
- SkPdfNativeObject::kHexString_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- name = tmp; \
- } \
- }
-
-#define POP_ARRAY(pdfContext,name) \
- SkDEBUGCODE(__cnt--); \
- SkASSERT(__cnt >= 0); \
- SkPdfArray* name = NULL; \
- __failed = __failed || pdfContext->fObjectStack.count() == 0; \
- if (pdfContext->fObjectStack.count() > 0) { \
- SkPdfNativeObject* tmp = pdfContext->fObjectStack.top(); \
- pdfContext->fObjectStack.pop(); \
- if (!tmp || !tmp->isArray()) { \
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, \
- __operator_name, \
- tmp, \
- SkPdfNativeObject::kArray_PdfObjectType, \
- NULL);\
- __failed = true;\
- } else { \
- name = (SkPdfArray*)tmp; \
- } \
- }
-
-#define CHECK_PARAMETERS() \
- SkASSERT(__cnt == 0); \
- if (__failed) return kIgnoreError_SkPdfResult;
-
-
-NotOwnedString strings_DeviceRGB;
-NotOwnedString strings_DeviceCMYK;
-
-class StringsInit {
-public:
- StringsInit() {
- NotOwnedString::init(&strings_DeviceRGB, "DeviceRGB");
- NotOwnedString::init(&strings_DeviceCMYK, "DeviceCMYK");
- }
-};
-
-// TODO(edisonn): this will not work in chrome! Find another solution!
-StringsInit gStringsInit;
-
-// TODO(edisonn): Document PdfTokenLooper and subclasses.
-class PdfTokenLooper {
-protected:
- PdfTokenLooper* fParent;
- SkPdfNativeTokenizer* fTokenizer;
- SkPdfContext* fPdfContext;
- SkCanvas* fCanvas;
-
-public:
- PdfTokenLooper(PdfTokenLooper* parent,
- SkPdfNativeTokenizer* tokenizer,
- SkPdfContext* pdfContext,
- SkCanvas* canvas)
- : fParent(parent), fTokenizer(tokenizer), fPdfContext(pdfContext), fCanvas(canvas) {}
-
- virtual ~PdfTokenLooper() {}
-
- virtual SkPdfResult consumeToken(PdfToken& token) = 0;
- virtual void loop() = 0;
-
- void setUp(PdfTokenLooper* parent) {
- fParent = parent;
- fTokenizer = parent->fTokenizer;
- fPdfContext = parent->fPdfContext;
- fCanvas = parent->fCanvas;
- }
-
- SkPdfNativeTokenizer* tokenizer() { return fTokenizer; }
-};
-
-class PdfMainLooper : public PdfTokenLooper {
-public:
- PdfMainLooper(PdfTokenLooper* parent,
- SkPdfNativeTokenizer* tokenizer,
- SkPdfContext* pdfContext,
- SkCanvas* canvas)
- : PdfTokenLooper(parent, tokenizer, pdfContext, canvas) {}
-
- virtual SkPdfResult consumeToken(PdfToken& token);
- virtual void loop();
-};
-
-class PdfInlineImageLooper : public PdfTokenLooper {
-public:
- PdfInlineImageLooper()
- : PdfTokenLooper(NULL, NULL, NULL, NULL) {}
-
- virtual SkPdfResult consumeToken(PdfToken& token);
- virtual void loop();
- SkPdfResult done();
-};
-
-class PdfCompatibilitySectionLooper : public PdfTokenLooper {
-public:
- PdfCompatibilitySectionLooper()
- : PdfTokenLooper(NULL, NULL, NULL, NULL) {}
-
- virtual SkPdfResult consumeToken(PdfToken& token);
- virtual void loop();
-};
-
-// 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 mean the same thing. Context dependent.
-static int GetColorSpaceComponents(NotOwnedString& colorSpace) {
- if (colorSpace.equals("DeviceCMYK")) {
- return 4;
- } else if (colorSpace.equals("DeviceGray") ||
- colorSpace.equals("CalGray") ||
- colorSpace.equals("Indexed")) {
- return 1;
- } else if (colorSpace.equals("DeviceRGB") ||
- colorSpace.equals("CalRGB") ||
- colorSpace.equals("Lab")) {
- return 3;
- } else {
- return 0;
- }
-}
-
-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
- if (pdfArray == NULL) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kNullObject_SkPdfIssue,
- "null array passed to build matrix", NULL, NULL);
- return SkMatrix::I();
- }
-
- if (pdfArray->size() != 6) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kUnexpectedArraySize_SkPdfIssue,
- "null array passed to build matrix", pdfArray, NULL);
- return SkMatrix::I();
- }
-
- for (int i = 0; i < 6; i++) {
- const SkPdfNativeObject* elem = pdfArray->operator [](i);
- if (elem == NULL || !elem->isNumber()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, elem,
- SkPdfNativeObject::_kNumber_PdfObjectType, NULL);
- return SkMatrix::I();
- }
- array[i] = elem->numberValue();
- }
-
- return SkMatrixFromPdfMatrix(array);
-}
-
-// TODO(edisonn): debug code, used to analyze rendering when we find bugs.
-extern "C" SkPdfNativeDoc* gDoc;
-SkBitmap* gDumpBitmap = NULL;
-SkCanvas* gDumpCanvas = NULL;
-char gLastKeyword[100] = "";
-int gLastOpKeyword = -1;
-int gReadOp = 0;
-
-#ifdef PDF_TRACE_DIFF_IN_PNG
-char allOpWithVisualEffects[100] = ",S,s,f,F,f*,B,B*,b,b*,n,Tj,TJ,\',\",d0,d1,sh,EI,Do,EX,";
-static 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);
-}
-#endif // PDF_TRACE_DIFF_IN_PNG
-
-// TODO(edisonn): Pass SkPdfContext and SkCanvasd only with the define for instrumentation.
-static bool readToken(SkPdfNativeTokenizer* fTokenizer, PdfToken* token) {
- bool ret = fTokenizer->readToken(token);
-
- gReadOp++;
- gLastOpKeyword++;
-#ifdef PDF_TRACE_DIFF_IN_PNG
- // TODO(edisonn): this code is used to make a step by step history of all the draw operations
- // so we could find the step where something is wrong.
- if (gLastKeyword[0] && hasVisualEffect(gLastKeyword)) {
- gDumpCanvas->flush();
-
- SkBitmap bitmap;
- setup_bitmap(&bitmap, gDumpBitmap->width(), gDumpBitmap->height());
-
- memcpy(bitmap.getPixels(), gDumpBitmap->getPixels(), gDumpBitmap->getSize());
-
- SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (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()) != NULL) {
- 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): overlay on top of image inf about the clip , grafic state, the stack
-
- out.appendf("/tmp/log_step_by_step/step-%i-%s.png",
- gLastOpKeyword, gLastKeyword);
- SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
- }
-
- if (ret && token->fType == kKeyword_TokenType &&
- token->fKeyword && token->fKeywordLength > 0 && token->fKeywordLength < 100) {
- strncpy(gLastKeyword, token->fKeyword, token->fKeywordLength);
- gLastKeyword[token->fKeywordLength] = '\0';
- } else {
- gLastKeyword[0] = '\0';
- }
-#endif
-
- return ret;
-}
-
-// Signature for all the operations available in pdf.
-typedef SkPdfResult (*PdfOperatorRenderer)(SkPdfContext*, SkCanvas*, PdfTokenLooper**);
-
-// Map of string to function pointer for all known draw operations.
-SkTDict<PdfOperatorRenderer> gPdfOps(100);
-
-// Temp code to measure what operands fail.
-template <typename T> class SkTDictWithDefaultConstructor : public SkTDict<T> {
-public:
- SkTDictWithDefaultConstructor() : SkTDict<T>(10) {}
-};
-
-SkTDictWithDefaultConstructor<int> gRenderStats[kCount_SkPdfResult];
-
-const char* gRenderStatsNames[kCount_SkPdfResult] = {
- "Success",
- "Partially implemented",
- "Not yet implemented",
- "Ignore Error",
- "Error",
- "Unsupported/Unknown"
-};
-
-static SkPdfResult DrawText(SkPdfContext* pdfContext,
- const SkPdfNativeObject* _str,
- SkCanvas* canvas)
-{
- SkPdfFont* skfont = pdfContext->fGraphicsState.fSkFont;
- if (skfont == NULL) {
- skfont = SkPdfFont::Default();
- }
-
- if (_str == NULL || !_str->isAnyString()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity,
- "DrawText",
- _str,
- SkPdfNativeObject::_kAnyString_PdfObjectType,
- pdfContext);
- return kIgnoreError_SkPdfResult;
- }
- const SkPdfString* str = (const SkPdfString*)_str;
-
- SkUnencodedText binary(str);
-
- SkDecodedText decoded;
-
- if (skfont->encoding() == NULL) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingEncoding_SkPdfIssue,
- "draw text", _str, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- skfont->encoding()->decodeText(binary, &decoded);
-
- SkPaint paint;
- // TODO(edisonn): does size 0 mean anything special?
- if (pdfContext->fGraphicsState.fCurFontSize != 0) {
- paint.setTextSize(SkDoubleToScalar(pdfContext->fGraphicsState.fCurFontSize));
- }
-
- // TODO(edisonn): implement font scaler
-// if (fCurFont && fCurFont->GetFontScale() != 0) {
-// paint.setTextScaleX(SkFloatToScalar(fCurFont->GetFontScale() / 100.0));
-// }
-
- pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
-
- skfont->drawText(decoded, &paint, pdfContext, canvas);
-
- return kOK_SkPdfResult;
-}
-
-// TODO(edisonn): create header files with declarations!
-SkPdfResult PdfOp_q(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
-SkPdfResult PdfOp_Q(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
-SkPdfResult PdfOp_Tw(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
-SkPdfResult PdfOp_Tc(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper);
-
-// 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;
-}
-
-static SkBitmap* transferImageStreamToBitmap(const unsigned char* uncompressedStream,
- size_t uncompressedStreamLength,
- int width, int height, int bytesPerLine,
- int bpc, const SkString& colorSpace,
- bool transparencyMask) {
- SkBitmap* bitmap = new SkBitmap();
-
- //int components = GetColorSpaceComponents(colorSpace);
-//#define MAX_COMPONENTS 10
-
- // 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.equals("DeviceRGB") || colorSpace.equals("RGB")) && bpc == 8) {
- SkColor* uncompressedStreamArgb = (SkColor*)malloc(width * height * sizeof(SkColor));
-
- for (int h = 0 ; h < height; h++) {
- long i = width * (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.equals("DeviceGray") || colorSpace.equals("Gray")) && bpc == 8) {
- unsigned char* uncompressedStreamA8 = (unsigned char*)malloc(width * height);
-
- for (int h = 0 ; h < height; h++) {
- long i = width * (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): pass color space and context here?
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "Color space NYI", NULL, NULL);
- return bitmap;
-}
-// TODO(edisonn): preserve A1 format that skia knows, + fast convert from 111, 222, 444 to closest
-// skia format.
-
-// This functions returns the image, it does not look at the smask.
-static SkBitmap* getImageFromObjectCore(SkPdfContext* pdfContext,
- SkPdfImageDictionary* image, bool transparencyMask) {
- if (image == NULL || !image->hasStream()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream", image,
- SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return NULL;
- }
-
- int bpc = (int)image->BitsPerComponent(pdfContext->fPdfDoc);
- int width = (int)image->Width(pdfContext->fPdfDoc);
- int height = (int)image->Height(pdfContext->fPdfDoc);
- SkString colorSpace("DeviceRGB");
-
- bool indexed = false;
- SkPMColor colors[256];
- int cnt = 0;
-
- if (image->isColorSpaceAName(pdfContext->fPdfDoc)) {
- colorSpace = image->getColorSpaceAsName(pdfContext->fPdfDoc);
- } else if (image->isColorSpaceAArray(pdfContext->fPdfDoc)) {
- SkPdfArray* array = image->getColorSpaceAsArray(pdfContext->fPdfDoc);
- if (array && array->size() == 4 && array->objAtAIndex(0)->isName("Indexed") &&
- (array->objAtAIndex(1)->isName("DeviceRGB") ||
- array->objAtAIndex(1)->isName("RGB")) &&
- array->objAtAIndex(2)->isInteger() &&
- array->objAtAIndex(3)->isHexString()
- ) {
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "Color space NYI",
- image, pdfContext);
- indexed = true;
- cnt = (int)array->objAtAIndex(2)->intValue() + 1;
- if (cnt > 256) {
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "Color space feature NYI, cnt > 256", image, pdfContext);
- return NULL;
- }
- NotOwnedString data = array->objAtAIndex(3)->strRef();
- if (data.fBytes != (unsigned int)cnt * 3) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "Image color table mismatch color space specs", array, pdfContext);
- return NULL;
- }
- for (int i = 0 ; i < cnt; i++) {
- colors[i] = SkPreMultiplyARGB(0xff,
- data.fBuffer[3 * i],
- data.fBuffer[3 * i + 1],
- data.fBuffer[3 * i + 2]);
- }
- }
- }
-
- // TODO(edisonn): implement image masks.
-/* 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 unsigned char* uncompressedStream = NULL;
- size_t uncompressedStreamLength = 0;
-
- SkPdfStream* stream = (SkPdfStream*)image;
-
- if (!stream || !stream->GetFilteredStreamRef(&uncompressedStream, &uncompressedStreamLength) ||
- uncompressedStream == NULL || uncompressedStreamLength == 0) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream", stream,
- SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return NULL;
- }
-
- SkPdfStreamCommonDictionary* streamDict = (SkPdfStreamCommonDictionary*)stream;
-
- if (streamDict->has_Filter() &&
- ((streamDict->isFilterAName(NULL) &&
- streamDict->getFilterAsName(NULL).equals("DCTDecode")) ||
- (streamDict->isFilterAArray(NULL) &&
- streamDict->getFilterAsArray(NULL)->size() > 0 &&
- streamDict->getFilterAsArray(NULL)->objAtAIndex(0)->isName() &&
- streamDict->getFilterAsArray(NULL)->objAtAIndex(0)->nameValue2()
- .equals("DCTDecode")))) {
- SkBitmap* bitmap = new SkBitmap();
- SkImageDecoder::DecodeMemory(uncompressedStream, uncompressedStreamLength, bitmap);
- return bitmap;
- }
-
- // TODO(edisonn): assumes RGB for now, since it is the only one implemented
- if (indexed) {
- SkBitmap* bitmap = new SkBitmap();
- bitmap->setConfig(SkBitmap::kIndex8_Config, width, height);
- SkColorTable* colorTable = new SkColorTable(colors, cnt);
- bitmap->setPixels((void*)uncompressedStream, colorTable);
- return bitmap;
- }
-
- int bytesPerLine = (int)(uncompressedStreamLength / height);
-#ifdef PDF_TRACE
- if (uncompressedStreamLength % height != 0) {
- printf("Warning uncompressedStreamLength modulo height != 0 !!!\n");
- }
-#endif
-
- SkBitmap* bitmap = transferImageStreamToBitmap(
- (unsigned char*)uncompressedStream, uncompressedStreamLength,
- (int)width, (int)height, bytesPerLine,
- (int)bpc, colorSpace,
- transparencyMask);
-
- return bitmap;
-}
-
-static SkBitmap* getImageFromObject(SkPdfContext* pdfContext, SkPdfImageDictionary* image,
- bool transparencyMask) {
- if (!transparencyMask) {
- if (!image->hasData(SkPdfNativeObject::kBitmap_Data)) {
- SkBitmap* bitmap = getImageFromObjectCore(pdfContext, image, transparencyMask);
- image->setData(bitmap, SkPdfNativeObject::kBitmap_Data);
- }
- return (SkBitmap*) image->data(SkPdfNativeObject::kBitmap_Data);
- } else {
- return getImageFromObjectCore(pdfContext, image, transparencyMask);
- }
-}
-
-static SkBitmap* getSmaskFromObject(SkPdfContext* pdfContext, SkPdfImageDictionary* obj) {
- SkPdfImageDictionary* sMask = obj->SMask(pdfContext->fPdfDoc);
-
- if (sMask) {
- return getImageFromObject(pdfContext, sMask, true);
- }
-
- // TODO(edisonn): implement GS SMask. Default to empty right now.
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "implement GS SMask. Default to empty right now.", obj, pdfContext);
-
- return pdfContext->fGraphicsState.fSMask;
-}
-
-static SkPdfResult doXObject_Image(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfImageDictionary* skpdfimage) {
- if (skpdfimage == NULL) {
- return kIgnoreError_SkPdfResult;
- }
-
- SkBitmap* image = getImageFromObject(pdfContext, skpdfimage, false);
- SkBitmap* sMask = getSmaskFromObject(pdfContext, skpdfimage);
-
- canvas->save();
- canvas->setMatrix(pdfContext->fGraphicsState.fCTM);
-
- SkScalar z = SkIntToScalar(0);
- SkScalar one = SkIntToScalar(1);
-
- SkPoint from[4] = {SkPoint::Make(z, z), SkPoint::Make(one, z),
- SkPoint::Make(one, one), SkPoint::Make(z, one)};
- SkPoint to[4] = {SkPoint::Make(z, one), SkPoint::Make(one, one),
- SkPoint::Make(one, z), SkPoint::Make(z, z)};
- SkMatrix flip;
- SkAssertResult(flip.setPolyToPoly(from, to, 4));
- SkMatrix solveImageFlip = pdfContext->fGraphicsState.fCTM;
- solveImageFlip.preConcat(flip);
- canvas->setMatrix(solveImageFlip);
-
-#ifdef PDF_TRACE
- SkPoint final[4] = {SkPoint::Make(z, z), SkPoint::Make(one, z),
- SkPoint::Make(one, one), SkPoint::Make(z, one)};
- solveImageFlip.mapPoints(final, 4);
- printf("IMAGE rect = ");
- for (int i = 0; i < 4; i++) {
- printf("(%f %f) ", SkScalarToDouble(final[i].x()), SkScalarToDouble(final[i].y()));
- }
- printf("\n");
-#endif // PDF_TRACE
-
- SkRect dst = SkRect::MakeXYWH(SkDoubleToScalar(0.0), SkDoubleToScalar(0.0),
- SkDoubleToScalar(1.0), SkDoubleToScalar(1.0));
-
- // TODO(edisonn): soft mask type? alpha/luminosity.
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "implement soft mask type", skpdfimage, pdfContext);
-
- SkPaint paint;
- pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
-
- if (!sMask || sMask->empty()) {
- canvas->drawBitmapRect(*image, dst, &paint);
- } else {
- canvas->saveLayer(&dst, &paint);
- canvas->drawBitmapRect(*image, dst, NULL);
- SkPaint xfer;
- xfer.setXfermodeMode(SkXfermode::kSrcOut_Mode);
- canvas->drawBitmapRect(*sMask, dst, &xfer);
- canvas->restore();
- }
-
- canvas->restore();
-
- return kPartial_SkPdfResult;
-}
-
-//TODO(edisonn): options for implementing isolation and knockout
-// 1) emulate them (current solution)
-// PRO: simple
-// CON: will need to use readPixels, which means serious perf issues
-// 2) Compile a plan for an array of matrixes, compose the result at the end
-// PRO: might be faster then 1, no need to readPixels
-// CON: multiple drawings (but on smaller areas), pay a price at loading pdf to
-// compute a pdf draw plan
-// on average, a load with empty draw is 100ms on all the skps we have, for complete sites
-// 3) support them natively in SkCanvas
-// PRO: simple
-// CON: we would still need to use a form of readPixels anyway, so perf might be the same as 1)
-// 4) compile a plan using pathops, and render once without any fancy rules with backdrop
-// PRO: simple, fast
-// CON: pathops must be bug free first + time to compute new paths
-// pay a price at loading pdf to compute a pdf draw plan
-// on average, a load with empty draw is 100ms on all the skps we have, for complete sites
-// 5) for knockout, render the objects in reverse order, and add every object to the clip, and any
-// new draw will be cliped
-
-static void doGroup_before(SkPdfContext* pdfContext, SkCanvas* canvas, SkRect bbox,
- SkPdfTransparencyGroupDictionary* tgroup, bool page) {
- SkRect bboxOrig = bbox;
- SkBitmap backdrop;
- bool isolatedGroup = tgroup->I(pdfContext->fPdfDoc);
-// bool knockoutGroup = tgroup->K(pdfContext->fPdfDoc);
- SkPaint paint;
- pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
- canvas->saveLayer(&bboxOrig, isolatedGroup ? &paint : NULL);
-}
-
-// TODO(edisonn): non isolation should probably be implemented in skia
-//static void doGroup_after(SkPdfContext* pdfContext, SkCanvas* canvas, SkRect bbox,
-// SkPdfTransparencyGroupDictionary* tgroup) {
-// if not isolated
-// canvas->drawBitmapRect(backdrop, bboxOrig, NULL);
-//}
-
-static SkPdfResult doXObject_Form(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfType1FormDictionary* skobj) {
- if (!skobj || !skobj->hasStream()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream", skobj,
- SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (!skobj->has_BBox()) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingRequiredKey_SkPdfIssue, "BBox",
- skobj, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- PdfOp_q(pdfContext, canvas, NULL);
-
-
- if (skobj->Resources(pdfContext->fPdfDoc)) {
- pdfContext->fGraphicsState.fResources = skobj->Resources(pdfContext->fPdfDoc);
- }
-
- SkTraceMatrix(pdfContext->fGraphicsState.fCTM, "Current matrix");
-
- if (skobj->has_Matrix()) {
- pdfContext->fGraphicsState.fCTM.preConcat(skobj->Matrix(pdfContext->fPdfDoc));
- SkMatrix matrix = pdfContext->fGraphicsState.fCTM;
- matrix.preScale(SkDoubleToScalar(1), SkDoubleToScalar(-1));
- pdfContext->fGraphicsState.fMatrixTm = matrix;
- pdfContext->fGraphicsState.fMatrixTlm = matrix;
- // TODO(edisonn): text matrixes mosltly NYI
- }
-
- SkTraceMatrix(pdfContext->fGraphicsState.fCTM, "Total matrix");
- pdfContext->fGraphicsState.fContentStreamMatrix = pdfContext->fGraphicsState.fCTM;
-
- canvas->setMatrix(pdfContext->fGraphicsState.fCTM);
-
- SkRect bbox = skobj->BBox(pdfContext->fPdfDoc);
- // TODO(edisonn): constants (AA) from settings.
- canvas->clipRect(bbox, SkRegion::kIntersect_Op, false);
-
- // This is a group?
- if (skobj->has_Group()) {
- SkPdfTransparencyGroupDictionary* tgroup = skobj->Group(pdfContext->fPdfDoc);
- doGroup_before(pdfContext, canvas, bbox, tgroup, false);
- }
-
- SkPdfStream* stream = (SkPdfStream*)skobj;
-
- SkPdfNativeTokenizer* tokenizer =
- pdfContext->fPdfDoc->tokenizerOfStream(stream, pdfContext->fTmpPageAllocator);
- if (tokenizer != NULL) {
- PdfMainLooper looper(NULL, tokenizer, pdfContext, canvas);
- looper.loop();
- delete tokenizer;
- }
-
- if (skobj->has_Group()) {
- canvas->restore();
- }
-
- PdfOp_Q(pdfContext, canvas, NULL);
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult doXObject_Pattern(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfType1PatternDictionary* skobj) {
- if (!skobj || !skobj->hasStream()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream",
- skobj, SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (!skobj->has_BBox()) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingRequiredKey_SkPdfIssue, "BBox",
- skobj, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- PdfOp_q(pdfContext, canvas, NULL);
-
-
- if (skobj->Resources(pdfContext->fPdfDoc)) {
- pdfContext->fGraphicsState.fResources = skobj->Resources(pdfContext->fPdfDoc);
- }
-
- SkTraceMatrix(pdfContext->fGraphicsState.fContentStreamMatrix, "Current Content stream matrix");
-
- if (skobj->has_Matrix()) {
- pdfContext->fGraphicsState.fContentStreamMatrix.preConcat(
- skobj->Matrix(pdfContext->fPdfDoc));
- }
-
- SkTraceMatrix(pdfContext->fGraphicsState.fContentStreamMatrix, "Total Content stream matrix");
-
- canvas->setMatrix(pdfContext->fGraphicsState.fContentStreamMatrix);
- pdfContext->fGraphicsState.fCTM = pdfContext->fGraphicsState.fContentStreamMatrix;
-
- SkRect bbox = skobj->BBox(pdfContext->fPdfDoc);
- // TODO(edisonn): constants (AA) from settings.
- canvas->clipRect(bbox, SkRegion::kIntersect_Op, false);
-
- SkPdfStream* stream = (SkPdfStream*)skobj;
-
- SkPdfNativeTokenizer* tokenizer =
- pdfContext->fPdfDoc->tokenizerOfStream(stream, pdfContext->fTmpPageAllocator);
- if (tokenizer != NULL) {
- PdfMainLooper looper(NULL, tokenizer, pdfContext, canvas);
- looper.loop();
- delete tokenizer;
- }
-
- PdfOp_Q(pdfContext, canvas, NULL);
- return kPartial_SkPdfResult;
-}
-
-// TODO(edisonn): PS NYI
-//static SkPdfResult doXObject_PS(SkPdfContext* pdfContext, SkCanvas* canvas,
-// const SkPdfNativeObject* obj) {
-// return kNYI_SkPdfResult;
-//}
-
-SkPdfResult doType3Char(SkPdfContext* pdfContext, SkCanvas* canvas, const SkPdfNativeObject* skobj,
- SkRect bBox, SkMatrix matrix, double textSize) {
- if (!skobj || !skobj->hasStream()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream", skobj,
- SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- PdfOp_q(pdfContext, canvas, NULL);
-
- pdfContext->fGraphicsState.fMatrixTm.preConcat(matrix);
- pdfContext->fGraphicsState.fMatrixTm.preScale(SkDoubleToScalar(textSize),
- SkDoubleToScalar(textSize));
- pdfContext->fGraphicsState.fMatrixTlm = pdfContext->fGraphicsState.fMatrixTm;
-
- pdfContext->fGraphicsState.fCTM = pdfContext->fGraphicsState.fMatrixTm;
- pdfContext->fGraphicsState.fCTM.preScale(SkDoubleToScalar(1), SkDoubleToScalar(-1));
-
- SkTraceMatrix(pdfContext->fGraphicsState.fCTM, "Total matrix");
-
- canvas->setMatrix(pdfContext->fGraphicsState.fCTM);
-
- SkRect rm = bBox;
- pdfContext->fGraphicsState.fCTM.mapRect(&rm);
-
- SkTraceRect(rm, "bbox mapped");
-
- // TODO(edisonn): constants (AA) from settings.
- canvas->clipRect(bBox, SkRegion::kIntersect_Op, false);
-
- SkPdfStream* stream = (SkPdfStream*)skobj;
-
- SkPdfNativeTokenizer* tokenizer =
- pdfContext->fPdfDoc->tokenizerOfStream(stream, pdfContext->fTmpPageAllocator);
- if (tokenizer != NULL) {
- PdfMainLooper looper(NULL, tokenizer, pdfContext, canvas);
- looper.loop();
- delete tokenizer;
- }
-
- PdfOp_Q(pdfContext, canvas, NULL);
-
- return kPartial_SkPdfResult;
-}
-
-// The PDF could be corrupted so a dict refers recursively to the same dict, if this happens
-// we end up with a stack overflow and crash.
-class CheckRecursiveRendering {
- SkPdfNativeObject* fObj;
-public:
- CheckRecursiveRendering(SkPdfNativeObject* obj) : fObj(obj) {
- SkASSERT(!obj->inRendering());
- obj->startRendering();
- }
-
- ~CheckRecursiveRendering() {
- SkASSERT(fObj->inRendering());
- fObj->doneRendering();
- }
-
- static bool IsInRendering(const SkPdfNativeObject* obj) {
- return obj->inRendering();
- }
-};
-
-static SkPdfResult doXObject(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfNativeObject* obj) {
- if (CheckRecursiveRendering::IsInRendering(obj)) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kRecursiveReferencing_SkPdfIssue,
- "Recursive reverencing is invalid in draw objects", obj, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- CheckRecursiveRendering checkRecursion(obj);
-
- switch (pdfContext->fPdfDoc->mapper()->mapXObjectDictionary(obj))
- {
- case kImageDictionary_SkPdfNativeObjectType:
- return doXObject_Image(pdfContext, canvas, (SkPdfImageDictionary*)obj);
- case kType1FormDictionary_SkPdfNativeObjectType:
- return doXObject_Form(pdfContext, canvas, (SkPdfType1FormDictionary*)obj);
- //case kObjectDictionaryXObjectPS_SkPdfNativeObjectType:
- //return doXObject_PS(skxobj.asPS());
- default: {
- if (pdfContext->fPdfDoc->mapper()->mapType1PatternDictionary(obj) !=
- kNone_SkPdfNativeObjectType) {
- SkPdfType1PatternDictionary* pattern = (SkPdfType1PatternDictionary*)obj;
- return doXObject_Pattern(pdfContext, canvas, pattern);
- }
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "doXObject",
- obj, pdfContext);
- }
- }
- return kIgnoreError_SkPdfResult;
-}
-
-static SkPdfResult doPage(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfPageObjectDictionary* skobj) {
- if (!skobj || !skobj->isContentsAStream(pdfContext->fPdfDoc)) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream", skobj,
- SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- SkPdfStream* stream = skobj->getContentsAsStream(pdfContext->fPdfDoc);
-
- if (!stream) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "Missing stream",
- skobj, SkPdfNativeObject::_kStream_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- pdfContext->fGraphicsState.fResources = skobj->Resources(pdfContext->fPdfDoc);
-
- if (!pdfContext->fGraphicsState.fResources) {
- // It might be null because we have not implemented yet inheritance.
- return kIgnoreError_SkPdfResult;
- }
-
- if (CheckRecursiveRendering::IsInRendering(skobj)) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kRecursiveReferencing_SkPdfIssue,
- "Recursive reverencing is invalid in draw objects", skobj, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
- CheckRecursiveRendering checkRecursion(skobj);
-
-
- PdfOp_q(pdfContext, canvas, NULL);
-
- // TODO(edisonn): MediaBox can be inherited!!!!
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "MediaBox inheritance NYI",
- NULL, pdfContext);
- SkRect bbox = skobj->MediaBox(pdfContext->fPdfDoc);
- if (skobj->has_Group()) {
- SkPdfTransparencyGroupDictionary* tgroup = skobj->Group(pdfContext->fPdfDoc);
- doGroup_before(pdfContext, canvas, bbox, tgroup, true);
- } else {
- canvas->save();
- }
-
-
- SkPdfNativeTokenizer* tokenizer =
- pdfContext->fPdfDoc->tokenizerOfStream(stream, pdfContext->fTmpPageAllocator);
- if (tokenizer != NULL) {
- PdfMainLooper looper(NULL, tokenizer, pdfContext, canvas);
- looper.loop();
- delete tokenizer;
- }
-
- canvas->restore();
- PdfOp_Q(pdfContext, canvas, NULL);
- return kPartial_SkPdfResult;
-}
-
-SkPdfResult PdfOp_q(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- pdfContext->fStateStack.push(pdfContext->fGraphicsState);
- canvas->save();
- pdfContext->fObjectStack.nest();
- return kOK_SkPdfResult;
-}
-
-SkPdfResult PdfOp_Q(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fStateStack.count() > 0) {
- pdfContext->fGraphicsState = pdfContext->fStateStack.top();
- pdfContext->fStateStack.pop();
- canvas->restore();
-
- if (pdfContext->fObjectStack.nests() == 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kStackNestingOverflow_SkPdfIssue,
- "stack nesting overflow (q/Q)", NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
- } else {
- pdfContext->fObjectStack.unnest();
- }
- } else {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kStackOverflow_SkPdfIssue,
- "stack overflow (q/Q)", NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_cm(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("cm", pdfContext, 6);
- POP_NUMBER(pdfContext, f);
- POP_NUMBER(pdfContext, e);
- POP_NUMBER(pdfContext, d);
- POP_NUMBER(pdfContext, c);
- POP_NUMBER(pdfContext, b);
- POP_NUMBER(pdfContext, a);
- CHECK_PARAMETERS();
- double array[6] = {a, b, c, d, e, f};
-
- // a b
- // c d
- // e f
-
- // 0 1
- // 2 3
- // 4 5
-
- // sx ky
- // kx sy
- // tx ty
- SkMatrix matrix = SkMatrixFromPdfMatrix(array);
-
- pdfContext->fGraphicsState.fCTM.preConcat(matrix);
-
-#ifdef PDF_TRACE
- printf("cm ");
- for (int i = 0 ; i < 6 ; i++) {
- printf("%f ", array[i]);
- }
- printf("\n");
- SkTraceMatrix(pdfContext->fGraphicsState.fCTM, "cm");
-#endif
-
- return kOK_SkPdfResult;
-}
-
-//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.
-static SkPdfResult PdfOp_TL(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("TL", pdfContext, 1);
- POP_NUMBER(pdfContext, ty);
- CHECK_PARAMETERS();
-
- pdfContext->fGraphicsState.fTextLeading = ty;
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_Td(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Td", pdfContext, 2);
- POP_NUMBER(pdfContext, ty);
- POP_NUMBER(pdfContext, tx);
- CHECK_PARAMETERS();
-
- 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_TD(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("TD", pdfContext, 2)
- POP_NUMBER(pdfContext, ty);
- POP_NUMBER(pdfContext, tx);
- CHECK_PARAMETERS();
-
- // TODO(edisonn): Create factory methods or constructors so native is hidden
- SkPdfReal* _ty = pdfContext->fPdfDoc->createReal(-ty);
- pdfContext->fObjectStack.push(_ty);
-
- PdfOp_TL(pdfContext, canvas, looper);
-
- SkPdfReal* vtx = pdfContext->fPdfDoc->createReal(tx);
- pdfContext->fObjectStack.push(vtx);
-
- SkPdfReal* vty = pdfContext->fPdfDoc->createReal(ty);
- pdfContext->fObjectStack.push(vty);
-
- SkPdfResult ret = PdfOp_Td(pdfContext, canvas, looper);
-
- return ret;
-}
-
-static SkPdfResult PdfOp_Tm(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tm", pdfContext, 6);
- POP_NUMBER(pdfContext, f);
- POP_NUMBER(pdfContext, e);
- POP_NUMBER(pdfContext, d);
- POP_NUMBER(pdfContext, c);
- POP_NUMBER(pdfContext, b);
- POP_NUMBER(pdfContext, a);
- CHECK_PARAMETERS();
-
- 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.fCTM);
- matrix.preScale(SkDoubleToScalar(1), SkDoubleToScalar(-1));
-
- // TODO(edisonn): NYI - Text positioning.
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "Text positioning not implemented for 2+ chars", NULL, pdfContext);
-
- pdfContext->fGraphicsState.fMatrixTm = matrix;
- pdfContext->fGraphicsState.fMatrixTlm = matrix;;
-
- return kPartial_SkPdfResult;
-}
-
-//— 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
-static SkPdfResult PdfOp_T_star(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- SkPdfReal* zero = pdfContext->fPdfDoc->createReal(0.0);
- SkPdfReal* tl = pdfContext->fPdfDoc->createReal(pdfContext->fGraphicsState.fTextLeading);
-
- pdfContext->fObjectStack.push(zero);
- pdfContext->fObjectStack.push(tl);
-
- SkPdfResult ret = PdfOp_Td(pdfContext, canvas, looper);
-
- return ret;
-}
-
-static SkPdfResult PdfOp_m(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("m", pdfContext, 2);
- POP_NUMBER(pdfContext, y);
- POP_NUMBER(pdfContext, x);
- CHECK_PARAMETERS();
-
- pdfContext->fGraphicsState.fCurPosY = y;
- pdfContext->fGraphicsState.fCurPosX = x;
-
- pdfContext->fGraphicsState.fPath.moveTo(SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosX),
- SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosY));
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_l(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("l", pdfContext, 2);
- POP_NUMBER(pdfContext, y);
- POP_NUMBER(pdfContext, x);
- CHECK_PARAMETERS();
-
- pdfContext->fGraphicsState.fCurPosY = y;
- pdfContext->fGraphicsState.fCurPosX = x;
-
- pdfContext->fGraphicsState.fPath.lineTo(SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosX),
- SkDoubleToScalar(pdfContext->fGraphicsState.fCurPosY));
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_c(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("c", pdfContext, 6);
- POP_NUMBER(pdfContext, y3);
- POP_NUMBER(pdfContext, x3);
- POP_NUMBER(pdfContext, y2);
- POP_NUMBER(pdfContext, x2);
- POP_NUMBER(pdfContext, y1);
- POP_NUMBER(pdfContext, x1);
- CHECK_PARAMETERS();
-
- 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_v(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("v", pdfContext, 4);
- POP_NUMBER(pdfContext, y3);
- POP_NUMBER(pdfContext, x3);
- POP_NUMBER(pdfContext, y2);
- POP_NUMBER(pdfContext, x2);
- CHECK_PARAMETERS();
-
- 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_y(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("y", pdfContext, 4);
- POP_NUMBER(pdfContext, y3);
- POP_NUMBER(pdfContext, x3);
- POP_NUMBER(pdfContext, y1);
- POP_NUMBER(pdfContext, x1);
- CHECK_PARAMETERS();
-
- double y2 = pdfContext->fGraphicsState.fCurPosY;
- double x2 = 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_re(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (pdfContext->fGraphicsState.fPathClosed) {
- pdfContext->fGraphicsState.fPath.reset();
- pdfContext->fGraphicsState.fPathClosed = false;
- }
-
- EXPECT_OPERANDS("re", pdfContext, 4);
- POP_NUMBER(pdfContext, height);
- POP_NUMBER(pdfContext, width);
- POP_NUMBER(pdfContext, y);
- POP_NUMBER(pdfContext, x);
- CHECK_PARAMETERS();
-
- 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_h(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- pdfContext->fGraphicsState.fPath.close();
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_fillAndStroke(SkPdfContext* pdfContext, SkCanvas* canvas,
- bool fill, bool stroke, bool close, bool evenOdd) {
- SkPath path = pdfContext->fGraphicsState.fPath;
-
- if (close) {
- path.close();
- }
-
- canvas->setMatrix(pdfContext->fGraphicsState.fCTM);
-
- SkPaint paint;
-
- SkPoint line[2];
- if (fill && !stroke && path.isLine(line)) {
- paint.setStyle(SkPaint::kStroke_Style);
-
- // TODO(edisonn): implement this with patterns
- pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
- paint.setStrokeWidth(SkDoubleToScalar(0));
-
- canvas->drawPath(path, paint);
- } else {
- if (fill) {
- if (strncmp((char*)pdfContext->fGraphicsState.fNonStroking.fColorSpace.fBuffer,
- "Pattern", strlen("Pattern")) == 0 &&
- pdfContext->fGraphicsState.fNonStroking.fPattern != NULL) {
-
- // TODO(edisonn): we can use a shader here, like imageshader to draw fast.
-
- PdfOp_q(pdfContext, canvas, NULL);
-
- if (evenOdd) {
- path.setFillType(SkPath::kEvenOdd_FillType);
- }
- canvas->clipPath(path);
-
- if (pdfContext->fPdfDoc
- ->mapper()
- ->mapType1PatternDictionary(pdfContext->fGraphicsState
- .fNonStroking
- .fPattern)
- != kNone_SkPdfNativeObjectType) {
- SkPdfType1PatternDictionary* pattern
- = (SkPdfType1PatternDictionary*)pdfContext->fGraphicsState
- .fNonStroking
- .fPattern;
-
- // TODO(edisonn): make PaintType constants
- if (pattern->PaintType(pdfContext->fPdfDoc) == 1) {
- // TODO(edisonn): don't use abs, iterate as asked, if the cells intersect
- // it will change the result iterating in reverse
- // remove then the following bounds.sort();
- int xStep = abs((int)pattern->XStep(pdfContext->fPdfDoc));
- int yStep = abs((int)pattern->YStep(pdfContext->fPdfDoc));
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "paterns x/y step is forced to positive number",
- pattern, pdfContext);
-
- SkRect bounds = path.getBounds();
- bounds.sort();
-
- SkScalar x;
- SkScalar y;
-
- y = bounds.top();
- int totalx = 0;
- int totaly = 0;
- while (y < bounds.bottom()) {
- x = bounds.left();
- totalx = 0;
-
- while (x < bounds.right()) {
- doXObject(pdfContext, canvas, pattern);
-
- pdfContext->fGraphicsState.fContentStreamMatrix.preTranslate(
- SkIntToScalar(xStep), SkIntToScalar(0));
- totalx += xStep;
- x += SkIntToScalar(xStep);
- }
- pdfContext->fGraphicsState.fContentStreamMatrix.preTranslate(
- SkIntToScalar(-totalx), SkIntToScalar(0));
-
- pdfContext->fGraphicsState.fContentStreamMatrix.preTranslate(
- SkIntToScalar(0), SkIntToScalar(-yStep));
- totaly += yStep;
- y += SkIntToScalar(yStep);
- }
- pdfContext->fGraphicsState.fContentStreamMatrix.preTranslate(
- SkIntToScalar(0), SkIntToScalar(totaly));
- }
- }
-
- PdfOp_Q(pdfContext, canvas, NULL);
- } else {
- paint.setStyle(SkPaint::kFill_Style);
- if (evenOdd) {
- path.setFillType(SkPath::kEvenOdd_FillType);
- }
-
- pdfContext->fGraphicsState.applyGraphicsState(&paint, false);
-
- canvas->drawPath(path, paint);
- }
- }
-
- if (stroke) {
- if (false && strncmp((char*)pdfContext->fGraphicsState.fNonStroking.fColorSpace.fBuffer,
- "Pattern", strlen("Pattern")) == 0) {
- // TODO(edisonn): implement Pattern for strokes
- paint.setStyle(SkPaint::kStroke_Style);
-
- paint.setColor(SK_ColorGREEN);
-
- // reset it, just in case it messes up the stroke
- path.setFillType(SkPath::kWinding_FillType);
- canvas->drawPath(path, paint);
- } else {
- paint.setStyle(SkPaint::kStroke_Style);
-
- pdfContext->fGraphicsState.applyGraphicsState(&paint, true);
-
- // reset it, just in case it messes up the stroke
- path.setFillType(SkPath::kWinding_FillType);
- canvas->drawPath(path, paint);
- }
- }
- }
-
- pdfContext->fGraphicsState.fPath.reset();
- // TODO(edisonn): implement scale/zoom
-
- 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 kOK_SkPdfResult;
-
-}
-
-static SkPdfResult PdfOp_S(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, false, true, false, false);
-}
-
-static SkPdfResult PdfOp_s(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, false, true, true, false);
-}
-
-static SkPdfResult PdfOp_F(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false);
-}
-
-static SkPdfResult PdfOp_f(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false);
-}
-
-static SkPdfResult PdfOp_f_star(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, true);
-}
-
-static SkPdfResult PdfOp_B(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, false);
-}
-
-static SkPdfResult PdfOp_B_star(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, true);
-}
-
-static SkPdfResult PdfOp_b(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, false);
-}
-
-static SkPdfResult PdfOp_b_star(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, true);
-}
-
-static SkPdfResult PdfOp_n(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- canvas->setMatrix(pdfContext->fGraphicsState.fCTM);
- if (pdfContext->fGraphicsState.fHasClipPathToApply) {
-#ifndef PDF_DEBUG_NO_CLIPING
- canvas->clipPath(pdfContext->fGraphicsState.fClipPath, SkRegion::kIntersect_Op, true);
-#endif
- }
-
- pdfContext->fGraphicsState.fHasClipPathToApply = false;
-
- pdfContext->fGraphicsState.fPathClosed = true;
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_BT(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- pdfContext->fGraphicsState.fTextBlock = true;
- SkMatrix matrix = pdfContext->fGraphicsState.fCTM;
- matrix.preScale(SkDoubleToScalar(1), SkDoubleToScalar(-1));
- pdfContext->fGraphicsState.fMatrixTm = matrix;
- pdfContext->fGraphicsState.fMatrixTlm = matrix;
-
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_ET(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- if (!pdfContext->fGraphicsState.fTextBlock) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue, "ET without BT", NULL,
- pdfContext);
-
- return kIgnoreError_SkPdfResult;
- }
- // TODO(edisonn): anything else to be done once we are done with draw text? Like restore stack?
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyFontCore(SkPdfContext* pdfContext,
- const SkPdfNativeObject* fontName, double fontSize) {
-#ifdef PDF_TRACE
- printf("font name: %s\n", fontName->nameValue2().c_str());
-#endif
-
- if (!pdfContext->fGraphicsState.fResources->Font(pdfContext->fPdfDoc)) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingFont_SkPdfIssue,
- "No font", fontName, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- SkPdfNativeObject* objFont
- = pdfContext->fGraphicsState.fResources->Font(pdfContext->fPdfDoc)->get(fontName);
- objFont = pdfContext->fPdfDoc->resolveReference(objFont);
- if (kNone_SkPdfNativeObjectType == pdfContext->fPdfDoc->mapper()->mapFontDictionary(objFont)) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kInvalidFont_SkPdfIssue,
- "Invalid font", objFont, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- SkPdfFontDictionary* fd = (SkPdfFontDictionary*)objFont;
-
- SkPdfFont* skfont = SkPdfFont::fontFromPdfDictionary(pdfContext->fPdfDoc, fd);
-
- if (skfont) {
- pdfContext->fGraphicsState.fSkFont = skfont;
- }
- pdfContext->fGraphicsState.fCurFontSize = fontSize;
- return kOK_SkPdfResult;
-}
-
-//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.
-static SkPdfResult PdfOp_Tf(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tf", pdfContext, 2);
- POP_NUMBER(pdfContext, fontSize);
- POP_NAME(pdfContext, fontName);
- CHECK_PARAMETERS();
-
- return skpdfGraphicsStateApplyFontCore(pdfContext, fontName, fontSize);
-}
-
-static SkPdfResult PdfOp_Tj(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tj", pdfContext, 1);
- POP_STRING(pdfContext, str);
- CHECK_PARAMETERS();
-
- if (!pdfContext->fGraphicsState.fTextBlock) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue, "Tj without BT", NULL,
- pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- SkPdfResult ret = DrawText(pdfContext, str, canvas);
-
- return ret;
-}
-
-static SkPdfResult PdfOp_quote(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- if (!pdfContext->fGraphicsState.fTextBlock) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue,
- "' without BT", NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- PdfOp_T_star(pdfContext, canvas, looper);
- // Do not pop, and push, just transfer the param to Tj
- return PdfOp_Tj(pdfContext, canvas, looper);
-}
-
-static SkPdfResult PdfOp_doublequote(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- if (!pdfContext->fGraphicsState.fTextBlock) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue,
- "\" without BT", NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- EXPECT_OPERANDS("\"", pdfContext, 3);
- POP_OBJ(pdfContext, str);
- POP_OBJ(pdfContext, ac);
- POP_OBJ(pdfContext, aw);
- CHECK_PARAMETERS();
-
- 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_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_TJ(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tf", pdfContext, 1);
- POP_ARRAY(pdfContext, array);
- CHECK_PARAMETERS();
-
- if (!pdfContext->fGraphicsState.fTextBlock) {
- // TODO(edisonn): try to recover and draw it any way?
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue, "TJ without BT", NULL,
- pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (!array->isArray()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, array,
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- for( int i=0; i<static_cast<int>(array->size()); i++ )
- {
- if (!(*array)[i]) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity,
- "element [i] is null, no element should be null",
- array,
- SkPdfNativeObject::_kAnyString_PdfObjectType |
- SkPdfNativeObject::_kNumber_PdfObjectType,
- pdfContext);
- } else if( (*array)[i]->isAnyString()) {
- SkPdfNativeObject* obj = (*array)[i];
- DrawText(pdfContext, obj, canvas);
- } else if ((*array)[i]->isNumber()) {
- double dx = (*array)[i]->numberValue();
- 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);
- } else {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "wrong type", (*array)[i],
- SkPdfNativeObject::kArray_PdfObjectType |
- SkPdfNativeObject::_kNumber_PdfObjectType,
- pdfContext);
- }
- }
- return kPartial_SkPdfResult; // TODO(edisonn): Implement fully DrawText before returing OK.
-}
-
-static SkPdfResult PdfOp_CS_cs(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- EXPECT_OPERANDS("CS/cs", pdfContext, 1);
- POP_NAME(pdfContext, name);
- CHECK_PARAMETERS();
-
- //Next, get the ColorSpace Dictionary from the Resource Dictionary:
- SkPdfDictionary* colorSpaceResource
- = pdfContext->fGraphicsState.fResources->ColorSpace(pdfContext->fPdfDoc);
-
- SkPdfNativeObject* colorSpace
- = colorSpaceResource ? pdfContext->fPdfDoc
- ->resolveReference(colorSpaceResource->get(name)) :
- name;
-
- if (colorSpace == NULL) {
- colorOperator->fColorSpace = name->strRef();
- } else {
-#ifdef PDF_TRACE
- printf("CS = %s\n", colorSpace->toString(0, 0).c_str());
-#endif // PDF_TRACE
- if (colorSpace->isName()) {
- colorOperator->fColorSpace = colorSpace->strRef();
- } else if (colorSpace->isArray()) {
- int cnt = colorSpace->size();
- if (cnt == 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "color space has length 0", colorSpace, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
- SkPdfNativeObject* type = colorSpace->objAtAIndex(0);
- type = pdfContext->fPdfDoc->resolveReference(type);
-
- if (type->isName("ICCBased")) {
- if (cnt != 2) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "ICCBased color space must have an array with 2 elements",
- colorSpace, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
- SkPdfNativeObject* prop = colorSpace->objAtAIndex(1);
- prop = pdfContext->fPdfDoc->resolveReference(prop);
-#ifdef PDF_TRACE
- printf("ICCBased prop = %s\n", prop->toString(0, 0).c_str());
-#endif // PDF_TRACE
- // TODO(edisonn): hack
- if (prop && prop->isDictionary() && prop->get("N") &&
- prop->get("N")->isInteger() && prop->get("N")->intValue() == 3) {
- colorOperator->setColorSpace(&strings_DeviceRGB);
- return kPartial_SkPdfResult;
- }
- return kNYI_SkPdfResult;
- }
- }
- }
-
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_CS(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_CS_cs(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_cs(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_CS_cs(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_SC_sc(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- double c[4];
-// int64_t v[4];
-
- int n = GetColorSpaceComponents(colorOperator->fColorSpace);
-
- bool doubles = true;
- if (colorOperator->fColorSpace.equals("Indexed")) {
- doubles = false;
- }
-
-#ifdef PDF_TRACE
- printf("color space = %s, N = %i\n", colorOperator->fColorSpace.fBuffer, n);
-#endif
-
- EXPECT_OPERANDS("SC/sc", pdfContext, n);
-
- for (int i = n - 1; i >= 0 ; i--) {
- if (doubles) {
- POP_NUMBER_INTO(pdfContext, c[i]);
-// } else {
-// v[i] = pdfContext->fObjectStack.top()->intValue(); pdfContext->fObjectStack.pop();
- }
- }
- CHECK_PARAMETERS();
-
- // TODO(edisonn): Now, set that color. Only DeviceRGB supported.
- // TODO(edisonn): do possible field values to enum at parsing time!
- // TODO(edisonn): support also abbreviations /DeviceRGB == /RGB
- if (colorOperator->fColorSpace.equals("DeviceRGB") ||
- colorOperator->fColorSpace.equals("RGB")) {
- colorOperator->setRGBColor(SkColorSetRGB((U8CPU)(255*c[0]),
- (U8CPU)(255*c[1]),
- (U8CPU)(255*c[2])));
- }
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_SC(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_SC_sc(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_sc(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_SC_sc(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_SCN_scn(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- if (pdfContext->fObjectStack.count() > 0 && pdfContext->fObjectStack.top()->isName()) {
- SkPdfNativeObject* name = pdfContext->fObjectStack.top(); pdfContext->fObjectStack.pop();
-
- SkPdfDictionary* patternResources
- = pdfContext->fGraphicsState.fResources->Pattern(pdfContext->fPdfDoc);
-
- if (patternResources == NULL) {
-#ifdef PDF_TRACE
- printf("ExtGState is NULL!\n");
-#endif
- return kIgnoreError_SkPdfResult;
- }
-
- colorOperator->setPatternColorSpace(
- pdfContext->fPdfDoc->resolveReference(patternResources->get(name)));
- }
-
- // TODO(edisonn): SCN supports more color spaces than SCN. Read and implement spec.
- PdfOp_SC_sc(pdfContext, canvas, colorOperator);
-
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_SCN(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_SCN_scn(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_scn(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_SCN_scn(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_G_g(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- EXPECT_OPERANDS("G/g", pdfContext, 1);
- POP_NUMBER(pdfContext, gray);
- CHECK_PARAMETERS();
-
- // TODO(edisonn): limit gray in [0, 1]
-
- // TODO(edisonn): HACK - it should be device gray, but not suported right now
- colorOperator->fColorSpace = strings_DeviceRGB;
- colorOperator->setRGBColor(SkColorSetRGB((U8CPU)(255 * gray),
- (U8CPU)(255 * gray),
- (U8CPU)(255 * gray)));
-
- return kPartial_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_G(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_G_g(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_g(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_G_g(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_RG_rg(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- EXPECT_OPERANDS("RG/rg", pdfContext, 3);
- POP_NUMBER(pdfContext, b);
- POP_NUMBER(pdfContext, g);
- POP_NUMBER(pdfContext, r);
- CHECK_PARAMETERS();
-
- colorOperator->fColorSpace = strings_DeviceRGB;
- colorOperator->setRGBColor(SkColorSetRGB((U8CPU)(255*r), (U8CPU)(255*g), (U8CPU)(255*b)));
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_RG(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_RG_rg(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_rg(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_RG_rg(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_K_k(SkPdfContext* pdfContext, SkCanvas* canvas,
- SkPdfColorOperator* colorOperator) {
- // TODO(edisonn): spec has some rules about overprint, implement them.
- EXPECT_OPERANDS("K/k", pdfContext, 4);
- POP_NUMBER(pdfContext, k);
- POP_NUMBER(pdfContext, y);
- POP_NUMBER(pdfContext, m);
- POP_NUMBER(pdfContext, c);
- CHECK_PARAMETERS();
-
- // TODO(edisonn): really silly quick way to remove compiler warning
- if (k + y + m + c == 0) {
- return kNYI_SkPdfResult;
- }
-
- //colorOperator->fColorSpace = strings_DeviceCMYK;
- // TODO(edisonn): Set color.
- return kNYI_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_K(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking);
-}
-
-static SkPdfResult PdfOp_k(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking);
-}
-
-static SkPdfResult PdfOp_W(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- pdfContext->fGraphicsState.fClipPath = pdfContext->fGraphicsState.fPath;
- pdfContext->fGraphicsState.fHasClipPathToApply = true;
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_W_star(SkPdfContext* pdfContext, SkCanvas* canvas,
- PdfTokenLooper** looper) {
- pdfContext->fGraphicsState.fClipPath = pdfContext->fGraphicsState.fPath;
-
- pdfContext->fGraphicsState.fClipPath.setFillType(SkPath::kEvenOdd_FillType);
- pdfContext->fGraphicsState.fHasClipPathToApply = true;
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_BX(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- *looper = new PdfCompatibilitySectionLooper();
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_EX(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kNullObject_SkPdfIssue,
- "EX operator should not be called, it is handled in a looper, "
- "unless the file is corrupted, we should assert",
- NULL, pdfContext);
-
- return kIgnoreError_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_BI(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- *looper = new PdfInlineImageLooper();
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_ID(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kNullObject_SkPdfIssue,
- "ID operator should not be called, it is habdled in a looper, "
- "unless the file is corrupted, we should assert",
- NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
-}
-
-static SkPdfResult PdfOp_EI(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kNullObject_SkPdfIssue,
- "EI operator should not be called, it is habdled in a looper, "
- "unless the file is corrupted, we should assert",
- NULL, pdfContext);
- return kIgnoreError_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApply_ca(SkPdfContext* pdfContext, double ca) {
- pdfContext->fGraphicsState.fNonStroking.fOpacity = ca;
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApply_CA(SkPdfContext* pdfContext, double CA) {
- pdfContext->fGraphicsState.fStroking.fOpacity = CA;
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyLW(SkPdfContext* pdfContext, double lineWidth) {
- pdfContext->fGraphicsState.fLineWidth = lineWidth;
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyLC(SkPdfContext* pdfContext, int64_t lineCap) {
- pdfContext->fGraphicsState.fLineCap = (int)lineCap;
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyLJ(SkPdfContext* pdfContext, int64_t lineJoin) {
- pdfContext->fGraphicsState.fLineJoin = (int)lineJoin;
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyML(SkPdfContext* pdfContext, double miterLimit) {
- pdfContext->fGraphicsState.fMiterLimit = miterLimit;
- return kOK_SkPdfResult;
-}
-
-// TODO(edisonn): test all dashing rules, not sure if they work as in skia.
-/*
-1) [ ] 0 No dash; solid, unbroken lines
-2) [3] 0 3 units on, 3 units off, …
-3) [2] 1 1 on, 2 off, 2 on, 2 off, …
-4) [2 1] 0 2 on, 1 off, 2 on, 1 off, …
-5) [3 5] 6 2 off, 3 on, 5 off, 3 on, 5 off, …
-6) [2 3] 11 1 on, 3 off, 2 on, 3 off, 2 on, …
- */
-
-static SkPdfResult skpdfGraphicsStateApplyD(SkPdfContext* pdfContext, SkPdfArray* intervals,
- SkPdfNativeObject* phase) {
- if (intervals == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, intervals,
- SkPdfNativeObject::_kNumber_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (phase == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, phase,
- SkPdfNativeObject::_kNumber_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- int cnt = intervals->size();
- if (cnt >= 256) {
- // TODO(edisonn): alloc memory
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue,
- "dash array size unssuported, cnt > 256", intervals, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
- for (int i = 0; i < cnt; i++) {
- if (!intervals->objAtAIndex(i) || !intervals->objAtAIndex(i)->isNumber()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL,
- intervals->objAtAIndex(i),
- SkPdfNativeObject::_kNumber_PdfObjectType, NULL);
- return kIgnoreError_SkPdfResult;
- }
- }
-
- double total = 0;
- for (int i = 0 ; i < cnt; i++) {
- pdfContext->fGraphicsState.fDashArray[i] = intervals->objAtAIndex(i)->scalarValue();
- total += pdfContext->fGraphicsState.fDashArray[i];
- }
- if (cnt & 1) {
- if (cnt == 1) {
- pdfContext->fGraphicsState.fDashArray[1] = pdfContext->fGraphicsState.fDashArray[0];
- cnt++;
- } else {
- // TODO(edisonn): report error/warning
- return kNYI_SkPdfResult;
- }
- }
- pdfContext->fGraphicsState.fDashArrayLength = cnt;
- pdfContext->fGraphicsState.fDashPhase = phase->scalarValue();
- if (pdfContext->fGraphicsState.fDashPhase == 0) {
- // other rules, changes?
- pdfContext->fGraphicsState.fDashPhase = SkDoubleToScalar(total);
- }
-
- return kOK_SkPdfResult;
-}
-
-static SkPdfResult skpdfGraphicsStateApplyD(SkPdfContext* pdfContext, SkPdfArray* dash) {
- if (!dash || dash->isArray()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, dash,
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (dash->size() != 2) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "hash array must have 2 elements", dash, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (!dash->objAtAIndex(0) || !dash->objAtAIndex(0)->isArray()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, dash->objAtAIndex(0),
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (!dash->objAtAIndex(1) || !dash->objAtAIndex(1)->isNumber()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, dash->objAtAIndex(1),
- SkPdfNativeObject::_kNumber_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- return skpdfGraphicsStateApplyD(pdfContext, (SkPdfArray*)dash->objAtAIndex(0),
- dash->objAtAIndex(1));
-}
-
-static void skpdfGraphicsStateApplyFont(SkPdfContext* pdfContext, SkPdfArray* fontAndSize) {
- if (!fontAndSize || !fontAndSize->isArray()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, fontAndSize,
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return;
- }
-
- if (fontAndSize->size() != 2) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "font array must have 2 elements", fontAndSize, pdfContext);
- return;
- }
-
- if (!fontAndSize->objAtAIndex(0) || !fontAndSize->objAtAIndex(0)->isName()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL,
- fontAndSize->objAtAIndex(0),
- SkPdfNativeObject::kName_PdfObjectType, pdfContext);
- return;
- }
-
-
- if (!fontAndSize->objAtAIndex(1) || !fontAndSize->objAtAIndex(1)->isNumber()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL,
- fontAndSize->objAtAIndex(0),
- SkPdfNativeObject::_kNumber_PdfObjectType, pdfContext);
- return;
- }
-
- skpdfGraphicsStateApplyFontCore(pdfContext, fontAndSize->objAtAIndex(0),
- fontAndSize->objAtAIndex(1)->numberValue());
-}
-
-
-//lineWidth w Set the line width in the graphics state (see “Line Width” on page 152).
-static SkPdfResult PdfOp_w(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("w", pdfContext, 1);
- POP_NUMBER(pdfContext, lw);
- CHECK_PARAMETERS();
-
- return skpdfGraphicsStateApplyLW(pdfContext, lw);
-}
-
-//lineCap J Set the line cap style in the graphics state (see “Line Cap Style” on page 153).
-static SkPdfResult PdfOp_J(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- // TODO(edisonn): round/ceil to int?
- EXPECT_OPERANDS("J", pdfContext, 1);
- POP_NUMBER(pdfContext, lc);
- CHECK_PARAMETERS();
-
- return skpdfGraphicsStateApplyLC(pdfContext, (int)lc);
-}
-
-//lineJoin j Set the line join style in the graphics state (see “Line Join Style” on page 153).
-static SkPdfResult PdfOp_j(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- // TODO(edisonn): round/ceil to int?
- EXPECT_OPERANDS("j", pdfContext, 1);
- POP_NUMBER(pdfContext, lj);
- CHECK_PARAMETERS();
-
- return skpdfGraphicsStateApplyLJ(pdfContext, (int)lj);
-}
-
-//miterLimit M Set the miter limit in the graphics state (see “Miter Limit” on page 153).
-static SkPdfResult PdfOp_M(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("M", pdfContext, 1);
- POP_NUMBER(pdfContext, ml);
- CHECK_PARAMETERS();
- return skpdfGraphicsStateApplyML(pdfContext, ml);
-}
-
-//dashArray dashPhase d Set the line dash pattern in the graphics state (see “Line Dash Pattern” on
-//page 155).
-static SkPdfResult PdfOp_d(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("d", pdfContext, 2);
- POP_OBJ(pdfContext, phase);
- POP_ARRAY(pdfContext, array);
- CHECK_PARAMETERS();
-
- return skpdfGraphicsStateApplyD(pdfContext, array, phase);
-}
-
-//intent ri (PDF 1.1) Set the color rendering intent in the graphics state (see “Rendering Intents”
-// on page 197).
-static SkPdfResult PdfOp_ri(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- pdfContext->fObjectStack.pop();
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "render intent NYI", NULL,
- pdfContext);
-
- return kNYI_SkPdfResult;
-}
-
-//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.
-static SkPdfResult PdfOp_i(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("i", pdfContext, 1);
- POP_NUMBER(pdfContext, flatness);
- CHECK_PARAMETERS();
-
- if (flatness < 0 || flatness > 100) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "flatness must be a real in [0, 100] range", flatness_obj, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-SkTDict<SkXfermode::Mode> gPdfBlendModes(20);
-
-class InitBlendModes {
-public:
- InitBlendModes() {
- // TODO(edisonn): use the python code generator?
- // TABLE 7.2 Standard separable blend modes
- gPdfBlendModes.set("Normal", SkXfermode::kSrc_Mode);
- gPdfBlendModes.set("Multiply", SkXfermode::kMultiply_Mode);
- gPdfBlendModes.set("Screen", SkXfermode::kScreen_Mode);
- gPdfBlendModes.set("Overlay", SkXfermode::kOverlay_Mode);
- gPdfBlendModes.set("Darken", SkXfermode::kDarken_Mode);
- gPdfBlendModes.set("Lighten", SkXfermode::kLighten_Mode);
- gPdfBlendModes.set("ColorDodge", SkXfermode::kColorDodge_Mode);
- gPdfBlendModes.set("ColorBurn", SkXfermode::kColorBurn_Mode);
- gPdfBlendModes.set("HardLight", SkXfermode::kHardLight_Mode);
- gPdfBlendModes.set("SoftLight", SkXfermode::kSoftLight_Mode);
- gPdfBlendModes.set("Difference", SkXfermode::kDifference_Mode);
- gPdfBlendModes.set("Exclusion", SkXfermode::kExclusion_Mode);
-
- // TABLE 7.3 Standard nonseparable blend modes
- gPdfBlendModes.set("Hue", SkXfermode::kHue_Mode);
- gPdfBlendModes.set("Saturation", SkXfermode::kSaturation_Mode);
- gPdfBlendModes.set("Color", SkXfermode::kColor_Mode);
- gPdfBlendModes.set("Luminosity", SkXfermode::kLuminosity_Mode);
- }
-};
-
-InitBlendModes _gDummyInniter;
-
-static SkXfermode::Mode xferModeFromBlendMode(const char* blendMode, size_t len) {
- SkXfermode::Mode mode = (SkXfermode::Mode)(SkXfermode::kLastMode + 1);
- if (gPdfBlendModes.find(blendMode, len, &mode)) {
- return mode;
- }
-
- return (SkXfermode::Mode)(SkXfermode::kLastMode + 1);
-}
-
-static void skpdfGraphicsStateApplyBM_name(SkPdfContext* pdfContext, const SkString& blendMode) {
- SkXfermode::Mode mode = xferModeFromBlendMode(blendMode.c_str(), blendMode.size());
- if (mode <= SkXfermode::kLastMode) {
- pdfContext->fGraphicsState.fBlendModesLength = 1;
- pdfContext->fGraphicsState.fBlendModes[0] = mode;
- } else {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kUnknownBlendMode_SkPdfIssue,
- blendMode.c_str(), NULL, pdfContext);
- }
-}
-
-static void skpdfGraphicsStateApplyBM_array(SkPdfContext* pdfContext, SkPdfArray* blendModes) {
- if (!blendModes || !blendModes->isArray()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, blendModes,
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return;
- }
-
- if (blendModes->size() == 0 || blendModes->size() > 256) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kIncostistentSizes_SkPdfIssue,
- "length of blendmodes, 0, is an erro, 256+, is NYI", blendModes, pdfContext);
- return;
- }
-
- SkXfermode::Mode modes[256];
- int cnt = blendModes->size();
- for (int i = 0; i < cnt; i++) {
- SkPdfNativeObject* name = blendModes->objAtAIndex(i);
- if (!name || !name->isName()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, name,
- SkPdfNativeObject::kName_PdfObjectType, pdfContext);
- return;
- }
- SkXfermode::Mode mode = xferModeFromBlendMode(name->c_str(), name->lenstr());
- if (mode > SkXfermode::kLastMode) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kUnknownBlendMode_SkPdfIssue, NULL, name,
- pdfContext);
- return;
- }
- }
-
- pdfContext->fGraphicsState.fBlendModesLength = cnt;
- for (int i = 0; i < cnt; i++) {
- pdfContext->fGraphicsState.fBlendModes[i] = modes[i];
- }
-}
-
-static void skpdfGraphicsStateApplySMask_dict(SkPdfContext* pdfContext, SkPdfDictionary* sMask) {
- if (!sMask || !sMask->isName()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, sMask,
- SkPdfNativeObject::kArray_PdfObjectType, pdfContext);
- return;
- }
-
- if (pdfContext->fPdfDoc->mapper()->mapSoftMaskDictionary(sMask)) {
- pdfContext->fGraphicsState.fSoftMaskDictionary = (SkPdfSoftMaskDictionary*)sMask;
- } else if (pdfContext->fPdfDoc->mapper()->mapSoftMaskImageDictionary(sMask)) {
- SkPdfSoftMaskImageDictionary* smid = (SkPdfSoftMaskImageDictionary*)sMask;
- pdfContext->fGraphicsState.fSMask = getImageFromObject(pdfContext, smid, true);
- } else {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity,
- "Dictionary must be SoftMask, or SoftMaskImage",
- sMask, SkPdfNativeObject::kDictionary_PdfObjectType, pdfContext);
- }
-}
-
-static void skpdfGraphicsStateApplySMask_name(SkPdfContext* pdfContext, const SkString& sMask) {
- if (sMask.equals("None")) {
- pdfContext->fGraphicsState.fSoftMaskDictionary = NULL;
- pdfContext->fGraphicsState.fSMask = NULL;
- return;
- }
-
- SkPdfDictionary* extGStateDictionary
- = pdfContext->fGraphicsState.fResources->ExtGState(pdfContext->fPdfDoc);
-
- if (extGStateDictionary == NULL) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingExtGState_SkPdfIssue, NULL,
- pdfContext->fGraphicsState.fResources, pdfContext);
- return;
- }
-
- SkPdfNativeObject* obj
- = pdfContext->fPdfDoc->resolveReference(extGStateDictionary->get(sMask.c_str()));
- if (!obj || !obj->isDictionary()) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, obj,
- SkPdfNativeObject::kDictionary_PdfObjectType, pdfContext);
- return;
- }
-
- pdfContext->fGraphicsState.fSoftMaskDictionary = NULL;
- pdfContext->fGraphicsState.fSMask = NULL;
-
- skpdfGraphicsStateApplySMask_dict(pdfContext, obj->asDictionary());
-}
-
-static void skpdfGraphicsStateApplyAIS(SkPdfContext* pdfContext, bool alphaSource) {
- pdfContext->fGraphicsState.fAlphaSource = alphaSource;
-}
-
-
-//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).
-static SkPdfResult PdfOp_gs(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("gs", pdfContext, 1);
- POP_NAME(pdfContext, name);
- CHECK_PARAMETERS();
-
- SkPdfDictionary* extGStateDictionary
- = pdfContext->fGraphicsState.fResources->ExtGState(pdfContext->fPdfDoc);
-
- if (extGStateDictionary == NULL) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingExtGState_SkPdfIssue, NULL,
- pdfContext->fGraphicsState.fResources, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- SkPdfNativeObject* value
- = pdfContext->fPdfDoc->resolveReference(extGStateDictionary->get(name));
-
- if (kNone_SkPdfNativeObjectType ==
- pdfContext->fPdfDoc->mapper()->mapGraphicsStateDictionary(value)) {
- return kIgnoreError_SkPdfResult;
- }
- SkPdfGraphicsStateDictionary* gs = (SkPdfGraphicsStateDictionary*)value;
-
- if (gs == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL,
- gs, SkPdfNativeObject::kDictionary_PdfObjectType, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- if (gs->has_LW()) {
- skpdfGraphicsStateApplyLW(pdfContext, gs->LW(pdfContext->fPdfDoc));
- }
-
- if (gs->has_LC()) {
- skpdfGraphicsStateApplyLC(pdfContext, gs->LC(pdfContext->fPdfDoc));
- }
-
- if (gs->has_LJ()) {
- skpdfGraphicsStateApplyLJ(pdfContext, gs->LJ(pdfContext->fPdfDoc));
- }
-
- if (gs->has_ML()) {
- skpdfGraphicsStateApplyML(pdfContext, gs->ML(pdfContext->fPdfDoc));
- }
-
- if (gs->has_D()) {
- skpdfGraphicsStateApplyD(pdfContext, gs->D(pdfContext->fPdfDoc));
- }
-
- if (gs->has_Font()) {
- skpdfGraphicsStateApplyFont(pdfContext, gs->Font(pdfContext->fPdfDoc));
- }
-
- if (gs->has_BM()) {
- if (gs->isBMAName(pdfContext->fPdfDoc)) {
- skpdfGraphicsStateApplyBM_name(pdfContext, gs->getBMAsName(pdfContext->fPdfDoc));
- } else if (gs->isBMAArray(pdfContext->fPdfDoc)) {
- skpdfGraphicsStateApplyBM_array(pdfContext, gs->getBMAsArray(pdfContext->fPdfDoc));
- } else {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, "wrong type", gs->get("BM"),
- SkPdfNativeObject::kArray_PdfObjectType |
- SkPdfNativeObject::kName_PdfObjectType, pdfContext);
- }
- }
-
- if (gs->has_SMask()) {
- if (gs->isSMaskAName(pdfContext->fPdfDoc)) {
- skpdfGraphicsStateApplySMask_name(pdfContext, gs->getSMaskAsName(pdfContext->fPdfDoc));
- } else if (gs->isSMaskADictionary(pdfContext->fPdfDoc)) {
- skpdfGraphicsStateApplySMask_dict(pdfContext,
- gs->getSMaskAsDictionary(pdfContext->fPdfDoc));
- } else {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity,
- "wrong type",
- gs->get("BM"),
- SkPdfNativeObject::kDictionary_PdfObjectType |
- SkPdfNativeObject::kName_PdfObjectType,
- pdfContext);
- }
- }
-
- if (gs->has_ca()) {
- skpdfGraphicsStateApply_ca(pdfContext, gs->ca(pdfContext->fPdfDoc));
- }
-
- if (gs->has_CA()) {
- skpdfGraphicsStateApply_CA(pdfContext, gs->CA(pdfContext->fPdfDoc));
- }
-
- if (gs->has_AIS()) {
- skpdfGraphicsStateApplyAIS(pdfContext, gs->AIS(pdfContext->fPdfDoc));
- }
-
- // TODO(edisonn): make sure we loaded all those properties in graphic state.
-
- return kOK_SkPdfResult;
-}
-
-//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.
-SkPdfResult PdfOp_Tc(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tc", pdfContext, 1);
- POP_NUMBER(pdfContext, charSpace);
- CHECK_PARAMETERS();
-
- pdfContext->fGraphicsState.fCharSpace = charSpace;
-
- return kOK_SkPdfResult;
-}
-
-//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.
-SkPdfResult PdfOp_Tw(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tw", pdfContext, 1);
- POP_NUMBER(pdfContext, wordSpace);
- CHECK_PARAMETERS();
-
- pdfContext->fGraphicsState.fWordSpace = wordSpace;
-
- return kOK_SkPdfResult;
-}
-
-//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).
-static SkPdfResult PdfOp_Tz(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tz", pdfContext, 1);
- POP_NUMBER(pdfContext, scale);
- CHECK_PARAMETERS();
-
- if (scale < 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "scale must a positive real number", scale_obj, pdfContext);
- return kError_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-//render Tr Set the text rendering mode, T
-//mode, to render, which is an integer. Initial value: 0.
-static SkPdfResult PdfOp_Tr(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Tr", pdfContext, 1);
- POP_INTEGER(pdfContext, mode);
- CHECK_PARAMETERS();
-
- if (mode < 0) { // TODO(edisonn): function/enums with supported modes
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "mode must a positive integer or 0", mode_obj, pdfContext);
- return kError_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-//rise Ts Set the text rise, Trise, to rise, which is a number expressed in unscaled text space
-//units. Initial value: 0.
-static SkPdfResult PdfOp_Ts(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Ts", pdfContext, 1);
- POP_NUMBER(pdfContext, rise);
- CHECK_PARAMETERS();
-
- if (rise < 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "rise must a positive real number", rise_obj, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-//wx wy d0
-static SkPdfResult PdfOp_d0(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("d0", pdfContext, 2);
- POP_NUMBER(pdfContext, wy);
- POP_NUMBER(pdfContext, wx);
- CHECK_PARAMETERS();
-
- if (wx < 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "wx must a positive real number", wx_obj, pdfContext);
- return kError_SkPdfResult;
- }
-
- if (wy < 0) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kOutOfRange_SkPdfIssue,
- "wy must a positive real number", wy_obj, pdfContext);
- return kError_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-//wx wy llx lly urx ury d1
-static SkPdfResult PdfOp_d1(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("d1", pdfContext, 6);
- POP_NUMBER(pdfContext, ury);
- POP_NUMBER(pdfContext, urx);
- POP_NUMBER(pdfContext, lly);
- POP_NUMBER(pdfContext, llx);
- POP_NUMBER(pdfContext, wy);
- POP_NUMBER(pdfContext, wx);
- CHECK_PARAMETERS();
-
- // TODO(edisonn): really silly quick way to remove warning
- if (wx + wy + llx + lly + urx + ury) {
- return kNYI_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-//name sh
-static SkPdfResult PdfOp_sh(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("sh", pdfContext, 1);
- POP_NAME(pdfContext, name);
- CHECK_PARAMETERS();
-
- if (name == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, name,
- SkPdfNativeObject::kName_PdfObjectType, pdfContext);
- return kError_SkPdfResult;
- }
-
- return kNYI_SkPdfResult;
-}
-
-//name Do
-static SkPdfResult PdfOp_Do(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("Do", pdfContext, 1);
- POP_NAME(pdfContext, name);
- CHECK_PARAMETERS();
-
- SkPdfDictionary* xObject = pdfContext->fGraphicsState.fResources->XObject(pdfContext->fPdfDoc);
-
- if (xObject == NULL) {
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingXObject_SkPdfIssue, NULL,
- pdfContext->fGraphicsState.fResources, pdfContext);
- return kIgnoreError_SkPdfResult;
- }
-
- SkPdfNativeObject* value = xObject->get(name);
- value = pdfContext->fPdfDoc->resolveReference(value);
-
- 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.
-static SkPdfResult PdfOp_MP(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("MP", pdfContext, 1);
- POP_OBJ(pdfContext, tag);
- CHECK_PARAMETERS();
-
- if (tag == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, tag,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "MP NYI", NULL, NULL);
- return kNYI_SkPdfResult;
-}
-
-//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”).
-static SkPdfResult PdfOp_DP(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("DP", pdfContext, 2);
- POP_OBJ(pdfContext, properties);
- POP_OBJ(pdfContext, tag);
- CHECK_PARAMETERS();
-
- if (tag == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, tag,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- if (properties == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, properties,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "DP NYI", NULL, NULL);
- return kNYI_SkPdfResult;
-}
-
-//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.
-static SkPdfResult PdfOp_BMC(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("BMC", pdfContext, 1);
- POP_OBJ(pdfContext, tag);
- CHECK_PARAMETERS();
-
- if (tag == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, tag,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "BMC NYI", NULL, NULL);
- return kNYI_SkPdfResult;
-}
-
-//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”).
-static SkPdfResult PdfOp_BDC(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- EXPECT_OPERANDS("BDC", pdfContext, 2);
- POP_OBJ(pdfContext, properties);
- POP_OBJ(pdfContext, tag);
- CHECK_PARAMETERS();
-
- if (tag == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, tag,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- if (properties == NULL) {
- SkPdfReportUnexpectedType(kIgnoreError_SkPdfIssueSeverity, NULL, properties,
- SkPdfNativeObject::_kObject_PdfObjectType, pdfContext);
- return kNYI_SkPdfResult;
- }
-
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "BDC NYI", NULL, NULL);
- return kNYI_SkPdfResult;
-}
-
-//— EMC End a marked-content sequence begun by a BMC or BDC operator.
-static SkPdfResult PdfOp_EMC(SkPdfContext* pdfContext, SkCanvas* canvas, PdfTokenLooper** looper) {
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "EMC NYI", NULL, NULL);
- return kNYI_SkPdfResult;
-}
-
-static void initPdfOperatorRenderes() {
- static bool gInitialized = false;
- if (gInitialized) {
- return;
- }
-
- gPdfOps.set("q", PdfOp_q);
- gPdfOps.set("Q", PdfOp_Q);
- gPdfOps.set("cm", PdfOp_cm);
-
- gPdfOps.set("TD", PdfOp_TD);
- gPdfOps.set("Td", PdfOp_Td);
- gPdfOps.set("Tm", PdfOp_Tm);
- gPdfOps.set("T*", PdfOp_T_star);
-
- gPdfOps.set("m", PdfOp_m);
- gPdfOps.set("l", PdfOp_l);
- gPdfOps.set("c", PdfOp_c);
- gPdfOps.set("v", PdfOp_v);
- gPdfOps.set("y", PdfOp_y);
- gPdfOps.set("h", PdfOp_h);
- gPdfOps.set("re", PdfOp_re);
-
- gPdfOps.set("S", PdfOp_S);
- gPdfOps.set("s", PdfOp_s);
- gPdfOps.set("f", PdfOp_f);
- gPdfOps.set("F", PdfOp_F);
- gPdfOps.set("f*", PdfOp_f_star);
- gPdfOps.set("B", PdfOp_B);
- gPdfOps.set("B*", PdfOp_B_star);
- gPdfOps.set("b", PdfOp_b);
- gPdfOps.set("b*", PdfOp_b_star);
- gPdfOps.set("n", PdfOp_n);
-
- gPdfOps.set("BT", PdfOp_BT);
- gPdfOps.set("ET", PdfOp_ET);
-
- gPdfOps.set("Tj", PdfOp_Tj);
- gPdfOps.set("'", PdfOp_quote);
- gPdfOps.set("\"", PdfOp_doublequote);
- gPdfOps.set("TJ", PdfOp_TJ);
-
- gPdfOps.set("CS", PdfOp_CS);
- gPdfOps.set("cs", PdfOp_cs);
- gPdfOps.set("SC", PdfOp_SC);
- gPdfOps.set("SCN", PdfOp_SCN);
- gPdfOps.set("sc", PdfOp_sc);
- gPdfOps.set("scn", PdfOp_scn);
- gPdfOps.set("G", PdfOp_G);
- gPdfOps.set("g", PdfOp_g);
- gPdfOps.set("RG", PdfOp_RG);
- gPdfOps.set("rg", PdfOp_rg);
- gPdfOps.set("K", PdfOp_K);
- gPdfOps.set("k", PdfOp_k);
-
- gPdfOps.set("W", PdfOp_W);
- gPdfOps.set("W*", PdfOp_W_star);
-
- gPdfOps.set("BX", PdfOp_BX);
- gPdfOps.set("EX", PdfOp_EX);
-
- gPdfOps.set("BI", PdfOp_BI);
- gPdfOps.set("ID", PdfOp_ID);
- gPdfOps.set("EI", PdfOp_EI);
-
- gPdfOps.set("w", PdfOp_w);
- gPdfOps.set("J", PdfOp_J);
- gPdfOps.set("j", PdfOp_j);
- gPdfOps.set("M", PdfOp_M);
- gPdfOps.set("d", PdfOp_d);
- gPdfOps.set("ri", PdfOp_ri);
- gPdfOps.set("i", PdfOp_i);
- gPdfOps.set("gs", PdfOp_gs);
-
- gPdfOps.set("Tc", PdfOp_Tc);
- gPdfOps.set("Tw", PdfOp_Tw);
- gPdfOps.set("Tz", PdfOp_Tz);
- gPdfOps.set("TL", PdfOp_TL);
- gPdfOps.set("Tf", PdfOp_Tf);
- gPdfOps.set("Tr", PdfOp_Tr);
- gPdfOps.set("Ts", PdfOp_Ts);
-
- gPdfOps.set("d0", PdfOp_d0);
- gPdfOps.set("d1", PdfOp_d1);
-
- gPdfOps.set("sh", PdfOp_sh);
-
- gPdfOps.set("Do", PdfOp_Do);
-
- gPdfOps.set("MP", PdfOp_MP);
- gPdfOps.set("DP", PdfOp_DP);
- gPdfOps.set("BMC", PdfOp_BMC);
- gPdfOps.set("BDC", PdfOp_BDC);
- gPdfOps.set("EMC", PdfOp_EMC);
-
- gInitialized = true;
-}
-
-class InitPdfOps {
-public:
- InitPdfOps() {
- initPdfOperatorRenderes();
- }
-};
-
-InitPdfOps gInitPdfOps;
-
-void reportPdfRenderStats() {
- for (int i = 0 ; i < kCount_SkPdfResult; i++) {
- SkTDict<int>::Iter iter(gRenderStats[i]);
- const char* key;
- int value = 0;
- while ((key = iter.next(&value)) != NULL) {
- printf("%s: %s -> count %i\n", gRenderStatsNames[i], key, value);
- }
- }
-}
-
-SkPdfResult PdfMainLooper::consumeToken(PdfToken& token) {
- if (token.fType == kKeyword_TokenType && token.fKeywordLength < 256)
- {
- PdfOperatorRenderer pdfOperatorRenderer = NULL;
- if (gPdfOps.find(token.fKeyword, token.fKeywordLength, &pdfOperatorRenderer) &&
- pdfOperatorRenderer) {
- PdfTokenLooper* childLooper = NULL;
- // Main work is done by pdfOperatorRenderer(...)
- SkPdfResult result = pdfOperatorRenderer(fPdfContext, fCanvas, &childLooper);
-
- int cnt = 0;
- gRenderStats[result].find(token.fKeyword, token.fKeywordLength, &cnt);
- gRenderStats[result].set(token.fKeyword, token.fKeywordLength, cnt + 1);
-
- if (childLooper) {
- childLooper->setUp(this);
- childLooper->loop();
- delete childLooper;
- }
- } else {
- int cnt = 0;
- gRenderStats[kUnsupported_SkPdfResult].find(token.fKeyword,
- token.fKeywordLength,
- &cnt);
- gRenderStats[kUnsupported_SkPdfResult].set(token.fKeyword,
- token.fKeywordLength,
- cnt + 1);
- }
- }
- else if (token.fType == kObject_TokenType)
- {
- fPdfContext->fObjectStack.push( token.fObject );
- }
- else {
- // TODO(edisonn): store the keyword as a object, so we can track the location in file,
- // and report where the error was triggered
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, token.fKeyword, NULL,
- fPdfContext);
- return kIgnoreError_SkPdfResult;
- }
- return kOK_SkPdfResult;
-}
-
-void PdfMainLooper::loop() {
- PdfToken token;
- while (readToken(fTokenizer, &token)) {
- consumeToken(token);
- }
-}
-
-SkPdfResult PdfInlineImageLooper::consumeToken(PdfToken& token) {
- SkASSERT(false);
- return kIgnoreError_SkPdfResult;
-}
-
-void PdfInlineImageLooper::loop() {
- doXObject_Image(fPdfContext, fCanvas, fTokenizer->readInlineImage());
-}
-
-SkPdfResult PdfInlineImageLooper::done() {
- return kNYI_SkPdfResult;
-}
-
-SkPdfResult PdfCompatibilitySectionLooper::consumeToken(PdfToken& token) {
- return fParent->consumeToken(token);
-}
-
-void PdfCompatibilitySectionLooper::loop() {
- PdfOp_q(fPdfContext, fCanvas, NULL);
-
- 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);
- }
- }
-
- PdfOp_Q(fPdfContext, fCanvas, NULL);
-}
-
-// TODO(edisonn): for debugging - remove or put it in a #ifdef
-SkPdfContext* gPdfContext = NULL;
-
-bool SkPdfRenderer::renderPage(int page, SkCanvas* canvas, const SkRect& dst) const {
- if (!fPdfDoc) {
- return false;
- }
-
- if (page < 0 || page >= pages()) {
- return false;
- }
-
- SkPdfContext pdfContext(fPdfDoc);
-
- pdfContext.fOriginalMatrix = SkMatrix::I();
- pdfContext.fGraphicsState.fResources = fPdfDoc->pageResources(page);
-
- gPdfContext = &pdfContext;
-
- SkScalar z = SkIntToScalar(0);
- SkScalar w = dst.width();
- SkScalar h = dst.height();
-
- if (SkScalarTruncToInt(w) <= 0 || SkScalarTruncToInt(h) <= 0) {
- return true;
- }
-
- SkScalar wp = fPdfDoc->MediaBox(page).width();
- SkScalar hp = fPdfDoc->MediaBox(page).height();
-
- SkPoint pdfSpace[4] = {SkPoint::Make(z, z),
- SkPoint::Make(wp, z),
- SkPoint::Make(wp, hp),
- SkPoint::Make(z, hp)};
-
-#ifdef PDF_DEBUG_3X
- // Use larger image to make sure we do not draw anything outside of page
- // could be used in tests.
- 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
-
- SkAssertResult(pdfContext.fOriginalMatrix.setPolyToPoly(pdfSpace, skiaSpace, 4));
- SkTraceMatrix(pdfContext.fOriginalMatrix, "Original matrix");
-
- pdfContext.fOriginalMatrix.postConcat(canvas->getTotalMatrix());
-
- pdfContext.fGraphicsState.fCTM = pdfContext.fOriginalMatrix;
- pdfContext.fGraphicsState.fContentStreamMatrix = pdfContext.fOriginalMatrix;
- pdfContext.fGraphicsState.fMatrixTm = pdfContext.fGraphicsState.fCTM;
- pdfContext.fGraphicsState.fMatrixTlm = pdfContext.fGraphicsState.fCTM;
-
-#ifndef PDF_DEBUG_NO_PAGE_CLIPING
- canvas->clipRect(dst, SkRegion::kIntersect_Op, true);
-#endif
-
- canvas->concat(pdfContext.fOriginalMatrix);
-
- doPage(&pdfContext, canvas, fPdfDoc->page(page));
-
- // TODO(edisonn:) erase with white before draw? Right now the caller is responsible.
-// SkPaint paint;
-// paint.setColor(SK_ColorWHITE);
-// canvas->drawRect(rect, paint);
-
-
- canvas->flush();
- return true;
-}
-
-bool SkPdfRenderer::load(const SkString inputFileName) {
- unload();
-
- fPdfDoc = new SkPdfNativeDoc(inputFileName.c_str());
- if (fPdfDoc->pages() == 0) {
- delete fPdfDoc;
- fPdfDoc = NULL;
- }
-
- return fPdfDoc != NULL;
-}
-
-bool SkPdfRenderer::load(SkStream* stream) {
- unload();
-
- // TODO(edisonn): create static function that could return NULL if there are errors
- fPdfDoc = new SkPdfNativeDoc(stream);
- if (fPdfDoc->pages() == 0) {
- delete fPdfDoc;
- fPdfDoc = NULL;
- }
-
- return fPdfDoc != NULL;
-}
-
-
-int SkPdfRenderer::pages() const {
- return fPdfDoc != NULL ? fPdfDoc->pages() : 0;
-}
-
-void SkPdfRenderer::unload() {
- delete fPdfDoc;
- fPdfDoc = NULL;
-}
-
-SkRect SkPdfRenderer::MediaBox(int page) const {
- SkASSERT(fPdfDoc);
- return fPdfDoc->MediaBox(page);
-}
-
-size_t SkPdfRenderer::bytesUsed() const {
- return fPdfDoc ? fPdfDoc->bytesUsed() : 0;
-}
-
-bool SkPDFNativeRenderToBitmap(SkStream* stream,
- SkBitmap* output,
- int page,
- SkPdfContent content,
- double dpi) {
- SkASSERT(page >= 0);
- SkPdfRenderer renderer;
- renderer.load(stream);
- if (!renderer.loaded() || page >= renderer.pages() || page < 0) {
- return false;
- }
-
- SkRect rect = renderer.MediaBox(page < 0 ? 0 :page);
-
- SkScalar width = SkScalarMul(rect.width(), SkDoubleToScalar(sqrt(dpi / 72.0)));
- SkScalar height = SkScalarMul(rect.height(), SkDoubleToScalar(sqrt(dpi / 72.0)));
-
- rect = SkRect::MakeWH(width, height);
-
- setup_bitmap(output, (int)SkScalarToDouble(width), (int)SkScalarToDouble(height));
-
- SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (*output)));
- SkCanvas canvas(device);
-
- return renderer.renderPage(page, &canvas, rect);
-}
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