Index: experimental/PdfViewer/src/SkPdfRenderer.cpp |
diff --git a/experimental/PdfViewer/src/SkPdfRenderer.cpp b/experimental/PdfViewer/src/SkPdfRenderer.cpp |
deleted file mode 100644 |
index b77a43ee3c7e5efbceb5c4ee320980f1f29bf300..0000000000000000000000000000000000000000 |
--- a/experimental/PdfViewer/src/SkPdfRenderer.cpp |
+++ /dev/null |
@@ -1,2915 +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 "SkCanvas.h" |
-#include "SkColorPriv.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 "SkPdfTokenLooper.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; |
- |
-__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 SkPdfTokenLooper and subclasses. |
-class PdfInlineImageLooper : public SkPdfTokenLooper { |
-public: |
- explicit PdfInlineImageLooper(SkPdfTokenLooper* parent) |
- : INHERITED(parent) {} |
- |
- SkPdfResult consumeToken(PdfToken& token) override; |
- void loop() override; |
- |
-private: |
- typedef SkPdfTokenLooper INHERITED; |
-}; |
- |
-class PdfCompatibilitySectionLooper : public SkPdfTokenLooper { |
-public: |
- explicit PdfCompatibilitySectionLooper(SkPdfTokenLooper* parent) |
- : INHERITED (parent) {} |
- |
- SkPdfResult consumeToken(PdfToken& token) override; |
- void loop() override; |
- |
-private: |
- typedef SkPdfTokenLooper INHERITED; |
-}; |
- |
-// Utilities |
-static void setup_bitmap(SkBitmap* bitmap, int width, int height, SkColor color = SK_ColorWHITE) { |
- bitmap->allocN32Pixels(width, height); |
- 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; |
- |
-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(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, SkPdfTokenLooper* parentLooper); |
-SkPdfResult PdfOp_Q(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper* parentLooper); |
-SkPdfResult PdfOp_Tw(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper* parentLooper); |
-SkPdfResult PdfOp_Tc(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper* parentLooper); |
- |
-// 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) { |
- uint32_t* uncompressedStreamArgb = (SkColor*)malloc(width * height * sizeof(uint32_t)); |
- |
- for (int h = 0 ; h < height; h++) { |
- long i = width * (h); |
- for (int w = 0 ; w < width; w++) { |
- uncompressedStreamArgb[i] = SkPackARGB32(0xFF, |
- uncompressedStream[3 * w], |
- uncompressedStream[3 * w + 1], |
- uncompressedStream[3 * w + 2]); |
- i++; |
- } |
- uncompressedStream += bytesPerLine; |
- } |
- |
- const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height); |
- bitmap->installPixels(info, uncompressedStreamArgb, info.minRowBytes()); |
- } |
- 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; |
- } |
- |
- const SkColorType ct = transparencyMask ? kAlpha_8_SkColorType : kIndex_8_SkColorType; |
- const SkImageInfo info = SkImageInfo::Make(width, height, ct, kPremul_SkAlphaType); |
- bitmap->installPixels(info, uncompressedStreamA8, info.minRowBytes(), |
- transparencyMask ? NULL : getGrayColortable(), NULL, NULL); |
- } |
- |
- // 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(); |
- const SkImageInfo info = SkImageInfo::Make(width, height, kIndex_8_SkColorType, |
- kPremul_SkAlphaType); |
- SkAutoTUnref<SkColorTable> colorTable(new SkColorTable(colors, cnt)); |
- bitmap->installPixels(info, (void*)uncompressedStream, info.minRowBytes(), colorTable, |
- NULL, NULL); |
- 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; |
- |
- pdfContext->parseStream(stream, canvas); |
- |
- 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; |
- |
- pdfContext->parseStream(stream, canvas); |
- |
- 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; |
- |
- pdfContext->parseStream(stream, canvas); |
- |
- 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; |
- } |
- |
- // FIXME (scroggo): renderPage also sets fResources. Are these redundant? |
- 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); |
- |
- |
- // FIXME (scroggo): Is this save necessary? May be needed for rendering a nested PDF. |
- 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(); |
- } |
- |
- pdfContext->parseStream(stream, canvas); |
- |
- canvas->restore(); |
- PdfOp_Q(pdfContext, canvas, NULL); |
- return kPartial_SkPdfResult; |
-} |
- |
-SkPdfResult PdfOp_q(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- pdfContext->fStateStack.push(pdfContext->fGraphicsState); |
- canvas->save(); |
- pdfContext->fObjectStack.nest(); |
- return kOK_SkPdfResult; |
-} |
- |
-SkPdfResult PdfOp_Q(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- if (pdfContext->fStateStack.count() > 0) { |
- pdfContext->fGraphicsState = pdfContext->fStateStack.top(); |
- pdfContext->fStateStack.pop(); |
- canvas->restore(); |
- |
- if (pdfContext->fObjectStack.nestingLevel() == 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, |
- SkPdfTokenLooper* parentLooper) { |
- 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, parentLooper); |
- |
- 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, parentLooper); |
- |
- return ret; |
-} |
- |
-static SkPdfResult PdfOp_Tm(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, |
- SkPdfTokenLooper* parentLooper) { |
- 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, parentLooper); |
- |
- return ret; |
-} |
- |
-static SkPdfResult PdfOp_m(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, false, true, false, false); |
-} |
- |
-static SkPdfResult PdfOp_s(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, false, true, true, false); |
-} |
- |
-static SkPdfResult PdfOp_F(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false); |
-} |
- |
-static SkPdfResult PdfOp_f(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, false); |
-} |
- |
-static SkPdfResult PdfOp_f_star(SkPdfContext* pdfContext, SkCanvas* canvas, |
- SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, false, false, true); |
-} |
- |
-static SkPdfResult PdfOp_B(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, false); |
-} |
- |
-static SkPdfResult PdfOp_B_star(SkPdfContext* pdfContext, SkCanvas* canvas, |
- SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, false, true); |
-} |
- |
-static SkPdfResult PdfOp_b(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, false); |
-} |
- |
-static SkPdfResult PdfOp_b_star(SkPdfContext* pdfContext, SkCanvas* canvas, |
- SkPdfTokenLooper*) { |
- return PdfOp_fillAndStroke(pdfContext, canvas, true, true, true, true); |
-} |
- |
-static SkPdfResult PdfOp_n(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- if (!pdfContext->fGraphicsState.fTextBlock) { |
- SkPdfReport(kIgnoreError_SkPdfIssueSeverity, kMissingBT_SkPdfIssue, "ET without BT", NULL, |
- pdfContext); |
- |
- return kIgnoreError_SkPdfResult; |
- } |
- |
- pdfContext->fGraphicsState.fTextBlock = false; |
- |
- // 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, |
- SkPdfTokenLooper* parentLooper) { |
- 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, parentLooper); |
- // Do not pop, and push, just transfer the param to Tj |
- return PdfOp_Tj(pdfContext, canvas, parentLooper); |
-} |
- |
-static SkPdfResult PdfOp_doublequote(SkPdfContext* pdfContext, SkCanvas* canvas, |
- SkPdfTokenLooper* parentLooper) { |
- 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, parentLooper); |
- |
- pdfContext->fObjectStack.push(ac); |
- PdfOp_Tc(pdfContext, canvas, parentLooper); |
- |
- pdfContext->fObjectStack.push(str); |
- PdfOp_quote(pdfContext, canvas, parentLooper); |
- |
- return kPartial_SkPdfResult; |
-} |
- |
-static SkPdfResult PdfOp_TJ(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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()) { |
- size_t 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, SkPdfTokenLooper*) { |
- return PdfOp_CS_cs(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_cs(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_SC_sc(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_sc(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_SCN_scn(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_scn(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_G_g(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_g(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_RG_rg(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_rg(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fStroking); |
-} |
- |
-static SkPdfResult PdfOp_k(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- return PdfOp_K_k(pdfContext, canvas, &pdfContext->fGraphicsState.fNonStroking); |
-} |
- |
-static SkPdfResult PdfOp_W(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- pdfContext->fGraphicsState.fClipPath = pdfContext->fGraphicsState.fPath; |
- pdfContext->fGraphicsState.fHasClipPathToApply = true; |
- |
- return kOK_SkPdfResult; |
-} |
- |
-static SkPdfResult PdfOp_W_star(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, |
- SkPdfTokenLooper* parentLooper) { |
- PdfCompatibilitySectionLooper looper(parentLooper); |
- looper.loop(); |
- return kOK_SkPdfResult; |
-} |
- |
-static SkPdfResult PdfOp_EX(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, |
- SkPdfTokenLooper* parentLooper) { |
- PdfInlineImageLooper looper(parentLooper); |
- looper.loop(); |
- return kOK_SkPdfResult; |
-} |
- |
-static SkPdfResult PdfOp_ID(SkPdfContext* pdfContext, SkCanvas* canvas, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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 = (int) 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- // 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, SkPdfTokenLooper*) { |
- // 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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 = (int) 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- 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, SkPdfTokenLooper*) { |
- SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, "EMC NYI", NULL, NULL); |
- return kNYI_SkPdfResult; |
-} |
- |
-#include "SkPdfOps.h" |
- |
-SkTDict<PdfOperatorRenderer> gPdfOps(100); |
- |
-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; |
- |
-SkPdfResult PdfInlineImageLooper::consumeToken(PdfToken& token) { |
- SkASSERT(false); |
- return kIgnoreError_SkPdfResult; |
-} |
- |
-void PdfInlineImageLooper::loop() { |
- // FIXME (scroggo): Does this need to be looper? It does not consumeTokens, |
- // nor does it loop. The one thing it does is provide access to the |
- // protected members of SkPdfTokenLooper. |
- doXObject_Image(fPdfContext, fCanvas, fTokenizer->readInlineImage()); |
-} |
- |
-SkPdfResult PdfCompatibilitySectionLooper::consumeToken(PdfToken& token) { |
- return fParent->consumeToken(token); |
-} |
- |
-void PdfCompatibilitySectionLooper::loop() { |
- PdfOp_q(fPdfContext, fCanvas, NULL); |
- |
- PdfToken token; |
- while (fTokenizer->readToken(&token)) { |
- if (token.fType == kKeyword_TokenType && strcmp(token.fKeyword, "BX") == 0) { |
- PdfCompatibilitySectionLooper looper(this); |
- looper.loop(); |
- } 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); |
- |
- // FIXME (scroggo): Is this matrix needed? |
- 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; |
- } |
- |
- // FIXME (scroggo): The media box may not be anchored at 0,0. Is this okay? |
- 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"); |
- |
- // FIXME (scroggo): Do we need to translate to account for the fact that |
- // the media box (or the destination rect) may not be anchored at 0,0? |
- 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 |
- |
- // FIXME (scroggo): This concat may not be necessary, since we generally |
- // call SkCanvas::setMatrix() before using the canvas. |
- 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; |
-} |
- |
-SkPdfRenderer* SkPdfRenderer::CreateFromFile(const char* inputFileName) { |
- // FIXME: SkPdfNativeDoc should have a similar Create function. |
- SkPdfNativeDoc* pdfDoc = SkNEW_ARGS(SkPdfNativeDoc, (inputFileName)); |
- if (pdfDoc->pages() == 0) { |
- SkDELETE(pdfDoc); |
- return NULL; |
- } |
- |
- return SkNEW_ARGS(SkPdfRenderer, (pdfDoc)); |
-} |
- |
-SkPdfRenderer* SkPdfRenderer::CreateFromStream(SkStream* stream) { |
- // TODO(edisonn): create static function that could return NULL if there are errors |
- SkPdfNativeDoc* pdfDoc = SkNEW_ARGS(SkPdfNativeDoc, (stream)); |
- if (pdfDoc->pages() == 0) { |
- SkDELETE(pdfDoc); |
- return NULL; |
- } |
- |
- return SkNEW_ARGS(SkPdfRenderer, (pdfDoc)); |
-} |
- |
-SkPdfRenderer::SkPdfRenderer(SkPdfNativeDoc* doc) |
- :fPdfDoc(doc) { |
-} |
- |
-SkPdfRenderer::~SkPdfRenderer() { |
- SkDELETE(fPdfDoc); |
-} |
- |
-int SkPdfRenderer::pages() const { |
- SkASSERT(fPdfDoc != NULL); |
- return fPdfDoc->pages(); |
-} |
- |
-SkRect SkPdfRenderer::MediaBox(int page) const { |
- SkASSERT(fPdfDoc != NULL); |
- return fPdfDoc->MediaBox(page); |
-} |
- |
-size_t SkPdfRenderer::bytesUsed() const { |
- SkASSERT(fPdfDoc != NULL); |
- return fPdfDoc->bytesUsed(); |
-} |
- |
-bool SkPDFNativeRenderToBitmap(SkStream* stream, |
- SkBitmap* output, |
- int page, |
- SkPdfContent unused, |
- double dpi) { |
- SkASSERT(page >= 0); |
- SkPdfRenderer* renderer = SkPdfRenderer::CreateFromStream(stream); |
- if (NULL == renderer) { |
- return false; |
- } |
- |
- SkRect rect = renderer->MediaBox(page < 0 ? 0 :page); |
- |
- SkScalar width = SkScalarMul(rect.width(), SkDoubleToScalar(dpi / 72.0)); |
- SkScalar height = SkScalarMul(rect.height(), SkDoubleToScalar(dpi / 72.0)); |
- |
- rect = SkRect::MakeWH(width, height); |
- |
- setup_bitmap(output, SkScalarCeilToInt(width), SkScalarCeilToInt(height)); |
- |
- SkCanvas canvas(*output); |
- |
- return renderer->renderPage(page, &canvas, rect); |
-} |