| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkPdfRenderer.h" |
| |
| #include "SkBitmapDevice.h" |
| #include "SkCanvas.h" |
| #include "SkDevice.h" |
| #include "SkForceLinking.h" |
| #include "SkGraphics.h" |
| #include "SkImageDecoder.h" |
| #include "SkImageEncoder.h" |
| #include "SkOSFile.h" |
| #include "SkPicture.h" |
| #include "SkPdfFont.h" |
| #include "SkPdfGraphicsState.h" |
| #include "SkPdfHeaders_autogen.h" |
| #include "SkPdfMapper_autogen.h" |
| #include "SkPdfNativeTokenizer.h" |
| #include "SkPdfRenderer.h" |
| #include "SkPdfReporter.h" |
| #include "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) {} |
| |
| virtual SkPdfResult consumeToken(PdfToken& token) SK_OVERRIDE; |
| virtual void loop() SK_OVERRIDE; |
| |
| private: |
| typedef SkPdfTokenLooper INHERITED; |
| }; |
| |
| class PdfCompatibilitySectionLooper : public SkPdfTokenLooper { |
| public: |
| explicit PdfCompatibilitySectionLooper(SkPdfTokenLooper* parent) |
| : INHERITED (parent) {} |
| |
| virtual SkPdfResult consumeToken(PdfToken& token) SK_OVERRIDE; |
| virtual void loop() SK_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) { |
| SkColor* uncompressedStreamArgb = (SkColor*)malloc(width * height * sizeof(SkColor)); |
| |
| for (int h = 0 ; h < height; h++) { |
| long i = width * (h); |
| for (int w = 0 ; w < width; w++) { |
| uncompressedStreamArgb[i] = SkColorSetRGB(uncompressedStream[3 * w], |
| uncompressedStream[3 * w + 1], |
| uncompressedStream[3 * w + 2]); |
| i++; |
| } |
| uncompressedStream += bytesPerLine; |
| } |
| |
| 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)); |
| |
| SkAutoTUnref<SkBaseDevice> device(SkNEW_ARGS(SkBitmapDevice, (*output))); |
| SkCanvas canvas(device); |
| |
| return renderer->renderPage(page, &canvas, rect); |
| } |
