1 /*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "SkTypes.h"
9
10 #ifndef UNICODE
11 #define UNICODE
12 #endif
13 #ifndef _UNICODE
14 #define _UNICODE
15 #endif
16 #include <ObjBase.h>
17 #include <XpsObjectModel.h>
18 #include <T2EmbApi.h>
19 #include <FontSub.h>
20
21 #include "SkColor.h"
22 #include "SkConstexprMath.h"
23 #include "SkData.h"
24 #include "SkDraw.h"
25 #include "SkDrawProcs.h"
26 #include "SkEndian.h"
27 #include "SkGeometry.h"
28 #include "SkGlyphCache.h"
29 #include "SkHRESULT.h"
30 #include "SkImageEncoder.h"
31 #include "SkIStream.h"
32 #include "SkMaskFilter.h"
33 #include "SkPaint.h"
34 #include "SkPathOps.h"
35 #include "SkPoint.h"
36 #include "SkRasterizer.h"
37 #include "SkSFNTHeader.h"
38 #include "SkShader.h"
39 #include "SkSize.h"
40 #include "SkStream.h"
41 #include "SkTDArray.h"
42 #include "SkTLazy.h"
43 #include "SkTScopedComPtr.h"
44 #include "SkTTCFHeader.h"
45 #include "SkTypefacePriv.h"
46 #include "SkUtils.h"
47 #include "SkXPSDevice.h"
48
49 //Windows defines a FLOAT type,
50 //make it clear when converting a scalar that this is what is wanted.
51 #define SkScalarToFLOAT(n) SkScalarToFloat(n)
52
53 //Dummy representation of a GUID from createId.
54 #define L_GUID_ID L"XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX"
55 //Length of GUID representation from createId, including NULL terminator.
56 #define GUID_ID_LEN SK_ARRAY_COUNT(L_GUID_ID)
57
58 /**
59 Formats a GUID and places it into buffer.
60 buffer should have space for at least GUID_ID_LEN wide characters.
61 The string will always be wchar null terminated.
62 XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX0
63 @return -1 if there was an error, > 0 if success.
64 */
format_guid(const GUID & guid,wchar_t * buffer,size_t bufferSize,wchar_t sep='-')65 static int format_guid(const GUID& guid,
66 wchar_t* buffer, size_t bufferSize,
67 wchar_t sep = '-') {
68 SkASSERT(bufferSize >= GUID_ID_LEN);
69 return swprintf_s(buffer,
70 bufferSize,
71 L"%08lX%c%04X%c%04X%c%02X%02X%c%02X%02X%02X%02X%02X%02X",
72 guid.Data1,
73 sep,
74 guid.Data2,
75 sep,
76 guid.Data3,
77 sep,
78 guid.Data4[0],
79 guid.Data4[1],
80 sep,
81 guid.Data4[2],
82 guid.Data4[3],
83 guid.Data4[4],
84 guid.Data4[5],
85 guid.Data4[6],
86 guid.Data4[7]);
87 }
88
createId(wchar_t * buffer,size_t bufferSize,wchar_t sep)89 HRESULT SkXPSDevice::createId(wchar_t* buffer, size_t bufferSize, wchar_t sep) {
90 GUID guid = {};
91 #ifdef SK_XPS_USE_DETERMINISTIC_IDS
92 guid.Data1 = fNextId++;
93 // The following make this a valid Type4 UUID.
94 guid.Data3 = 0x4000;
95 guid.Data4[0] = 0x80;
96 #else
97 HRM(CoCreateGuid(&guid), "Could not create GUID for id.");
98 #endif
99
100 if (format_guid(guid, buffer, bufferSize, sep) == -1) {
101 HRM(E_UNEXPECTED, "Could not format GUID into id.");
102 }
103
104 return S_OK;
105 }
106
make_fake_bitmap(int width,int height)107 static SkBitmap make_fake_bitmap(int width, int height) {
108 SkBitmap bitmap;
109 bitmap.setInfo(SkImageInfo::MakeUnknown(width, height));
110 return bitmap;
111 }
112
113 // TODO: should inherit from SkBaseDevice instead of SkBitmapDevice...
SkXPSDevice()114 SkXPSDevice::SkXPSDevice()
115 : SkBitmapDevice(make_fake_bitmap(10000, 10000))
116 , fCurrentPage(0) {
117 }
118
~SkXPSDevice()119 SkXPSDevice::~SkXPSDevice() {
120 }
121
TypefaceUse()122 SkXPSDevice::TypefaceUse::TypefaceUse()
123 : typefaceId(0xffffffff)
124 , fontData(NULL)
125 , xpsFont(NULL)
126 , glyphsUsed(NULL) {
127 }
128
~TypefaceUse()129 SkXPSDevice::TypefaceUse::~TypefaceUse() {
130 //xpsFont owns fontData ref
131 this->xpsFont->Release();
132 delete this->glyphsUsed;
133 }
134
beginPortfolio(SkWStream * outputStream)135 bool SkXPSDevice::beginPortfolio(SkWStream* outputStream) {
136 if (!this->fAutoCo.succeeded()) return false;
137
138 //Create XPS Factory.
139 HRBM(CoCreateInstance(
140 CLSID_XpsOMObjectFactory,
141 NULL,
142 CLSCTX_INPROC_SERVER,
143 IID_PPV_ARGS(&this->fXpsFactory)),
144 "Could not create XPS factory.");
145
146 HRBM(SkWIStream::CreateFromSkWStream(outputStream, &this->fOutputStream),
147 "Could not convert SkStream to IStream.");
148
149 return true;
150 }
151
beginSheet(const SkVector & unitsPerMeter,const SkVector & pixelsPerMeter,const SkSize & trimSize,const SkRect * mediaBox,const SkRect * bleedBox,const SkRect * artBox,const SkRect * cropBox)152 bool SkXPSDevice::beginSheet(
153 const SkVector& unitsPerMeter,
154 const SkVector& pixelsPerMeter,
155 const SkSize& trimSize,
156 const SkRect* mediaBox,
157 const SkRect* bleedBox,
158 const SkRect* artBox,
159 const SkRect* cropBox) {
160 ++this->fCurrentPage;
161
162 //For simplicity, just write everything out in geometry units,
163 //then have a base canvas do the scale to physical units.
164 this->fCurrentCanvasSize = trimSize;
165 this->fCurrentUnitsPerMeter = unitsPerMeter;
166 this->fCurrentPixelsPerMeter = pixelsPerMeter;
167
168 this->fCurrentXpsCanvas.reset();
169 HRBM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas),
170 "Could not create base canvas.");
171
172 return true;
173 }
174
createXpsThumbnail(IXpsOMPage * page,const unsigned int pageNum,IXpsOMImageResource ** image)175 HRESULT SkXPSDevice::createXpsThumbnail(IXpsOMPage* page,
176 const unsigned int pageNum,
177 IXpsOMImageResource** image) {
178 SkTScopedComPtr<IXpsOMThumbnailGenerator> thumbnailGenerator;
179 HRM(CoCreateInstance(
180 CLSID_XpsOMThumbnailGenerator,
181 NULL,
182 CLSCTX_INPROC_SERVER,
183 IID_PPV_ARGS(&thumbnailGenerator)),
184 "Could not create thumbnail generator.");
185
186 SkTScopedComPtr<IOpcPartUri> partUri;
187 static const size_t size = SkTUMax<
188 SK_ARRAY_COUNT(L"/Documents/1/Metadata/.png") + SK_DIGITS_IN(pageNum),
189 SK_ARRAY_COUNT(L"/Metadata/" L_GUID_ID L".png")
190 >::value;
191 wchar_t buffer[size];
192 if (pageNum > 0) {
193 swprintf_s(buffer, size, L"/Documents/1/Metadata/%u.png", pageNum);
194 } else {
195 wchar_t id[GUID_ID_LEN];
196 HR(this->createId(id, GUID_ID_LEN));
197 swprintf_s(buffer, size, L"/Metadata/%s.png", id);
198 }
199 HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri),
200 "Could not create thumbnail part uri.");
201
202 HRM(thumbnailGenerator->GenerateThumbnail(page,
203 XPS_IMAGE_TYPE_PNG,
204 XPS_THUMBNAIL_SIZE_LARGE,
205 partUri.get(),
206 image),
207 "Could not generate thumbnail.");
208
209 return S_OK;
210 }
211
createXpsPage(const XPS_SIZE & pageSize,IXpsOMPage ** page)212 HRESULT SkXPSDevice::createXpsPage(const XPS_SIZE& pageSize,
213 IXpsOMPage** page) {
214 static const size_t size = SK_ARRAY_COUNT(L"/Documents/1/Pages/.fpage")
215 + SK_DIGITS_IN(fCurrentPage);
216 wchar_t buffer[size];
217 swprintf_s(buffer, size, L"/Documents/1/Pages/%u.fpage",
218 this->fCurrentPage);
219 SkTScopedComPtr<IOpcPartUri> partUri;
220 HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri),
221 "Could not create page part uri.");
222
223 //If the language is unknown, use "und" (XPS Spec 2.3.5.1).
224 HRM(this->fXpsFactory->CreatePage(&pageSize,
225 L"und",
226 partUri.get(),
227 page),
228 "Could not create page.");
229
230 return S_OK;
231 }
232
initXpsDocumentWriter(IXpsOMImageResource * image)233 HRESULT SkXPSDevice::initXpsDocumentWriter(IXpsOMImageResource* image) {
234 //Create package writer.
235 {
236 SkTScopedComPtr<IOpcPartUri> partUri;
237 HRM(this->fXpsFactory->CreatePartUri(L"/FixedDocumentSequence.fdseq",
238 &partUri),
239 "Could not create document sequence part uri.");
240 HRM(this->fXpsFactory->CreatePackageWriterOnStream(
241 this->fOutputStream.get(),
242 TRUE,
243 XPS_INTERLEAVING_OFF, //XPS_INTERLEAVING_ON,
244 partUri.get(),
245 NULL,
246 image,
247 NULL,
248 NULL,
249 &this->fPackageWriter),
250 "Could not create package writer.");
251 }
252
253 //Begin the lone document.
254 {
255 SkTScopedComPtr<IOpcPartUri> partUri;
256 HRM(this->fXpsFactory->CreatePartUri(
257 L"/Documents/1/FixedDocument.fdoc",
258 &partUri),
259 "Could not create fixed document part uri.");
260 HRM(this->fPackageWriter->StartNewDocument(partUri.get(),
261 NULL,
262 NULL,
263 NULL,
264 NULL),
265 "Could not start document.");
266 }
267
268 return S_OK;
269 }
270
endSheet()271 bool SkXPSDevice::endSheet() {
272 //XPS is fixed at 96dpi (XPS Spec 11.1).
273 static const float xpsDPI = 96.0f;
274 static const float inchesPerMeter = 10000.0f / 254.0f;
275 static const float targetUnitsPerMeter = xpsDPI * inchesPerMeter;
276 const float scaleX = targetUnitsPerMeter
277 / SkScalarToFLOAT(this->fCurrentUnitsPerMeter.fX);
278 const float scaleY = targetUnitsPerMeter
279 / SkScalarToFLOAT(this->fCurrentUnitsPerMeter.fY);
280
281 //Create the scale canvas.
282 SkTScopedComPtr<IXpsOMCanvas> scaleCanvas;
283 HRBM(this->fXpsFactory->CreateCanvas(&scaleCanvas),
284 "Could not create scale canvas.");
285 SkTScopedComPtr<IXpsOMVisualCollection> scaleCanvasVisuals;
286 HRBM(scaleCanvas->GetVisuals(&scaleCanvasVisuals),
287 "Could not get scale canvas visuals.");
288
289 SkTScopedComPtr<IXpsOMMatrixTransform> geomToPhys;
290 XPS_MATRIX rawGeomToPhys = { scaleX, 0, 0, scaleY, 0, 0, };
291 HRBM(this->fXpsFactory->CreateMatrixTransform(&rawGeomToPhys, &geomToPhys),
292 "Could not create geometry to physical transform.");
293 HRBM(scaleCanvas->SetTransformLocal(geomToPhys.get()),
294 "Could not set transform on scale canvas.");
295
296 //Add the content canvas to the scale canvas.
297 HRBM(scaleCanvasVisuals->Append(this->fCurrentXpsCanvas.get()),
298 "Could not add base canvas to scale canvas.");
299
300 //Create the page.
301 XPS_SIZE pageSize = {
302 SkScalarToFLOAT(this->fCurrentCanvasSize.width()) * scaleX,
303 SkScalarToFLOAT(this->fCurrentCanvasSize.height()) * scaleY,
304 };
305 SkTScopedComPtr<IXpsOMPage> page;
306 HRB(this->createXpsPage(pageSize, &page));
307
308 SkTScopedComPtr<IXpsOMVisualCollection> pageVisuals;
309 HRBM(page->GetVisuals(&pageVisuals), "Could not get page visuals.");
310
311 //Add the scale canvas to the page.
312 HRBM(pageVisuals->Append(scaleCanvas.get()),
313 "Could not add scale canvas to page.");
314
315 //Create the package writer if it hasn't been created yet.
316 if (NULL == this->fPackageWriter.get()) {
317 SkTScopedComPtr<IXpsOMImageResource> image;
318 //Ignore return, thumbnail is completely optional.
319 this->createXpsThumbnail(page.get(), 0, &image);
320
321 HRB(this->initXpsDocumentWriter(image.get()));
322 }
323
324 HRBM(this->fPackageWriter->AddPage(page.get(),
325 &pageSize,
326 NULL,
327 NULL,
328 NULL,
329 NULL),
330 "Could not write the page.");
331 this->fCurrentXpsCanvas.reset();
332
333 return true;
334 }
335
subset_typeface(SkXPSDevice::TypefaceUse * current)336 static HRESULT subset_typeface(SkXPSDevice::TypefaceUse* current) {
337 //CreateFontPackage wants unsigned short.
338 //Microsoft, Y U NO stdint.h?
339 SkTDArray<unsigned short> keepList;
340 current->glyphsUsed->exportTo(&keepList);
341
342 int ttcCount = (current->ttcIndex + 1);
343
344 //The following are declared with the types required by CreateFontPackage.
345 unsigned char *fontPackageBufferRaw = NULL;
346 unsigned long fontPackageBufferSize;
347 unsigned long bytesWritten;
348 unsigned long result = CreateFontPackage(
349 (unsigned char *) current->fontData->getMemoryBase(),
350 (unsigned long) current->fontData->getLength(),
351 &fontPackageBufferRaw,
352 &fontPackageBufferSize,
353 &bytesWritten,
354 TTFCFP_FLAGS_SUBSET | TTFCFP_FLAGS_GLYPHLIST | (ttcCount > 0 ? TTFCFP_FLAGS_TTC : 0),
355 current->ttcIndex,
356 TTFCFP_SUBSET,
357 0,
358 0,
359 0,
360 keepList.begin(),
361 keepList.count(),
362 sk_malloc_throw,
363 sk_realloc_throw,
364 sk_free,
365 NULL);
366 SkAutoTMalloc<unsigned char> fontPackageBuffer(fontPackageBufferRaw);
367 if (result != NO_ERROR) {
368 SkDEBUGF(("CreateFontPackage Error %lu", result));
369 return E_UNEXPECTED;
370 }
371
372 // If it was originally a ttc, keep it a ttc.
373 // CreateFontPackage over-allocates, realloc usually decreases the size substantially.
374 size_t extra;
375 if (ttcCount > 0) {
376 // Create space for a ttc header.
377 extra = sizeof(SkTTCFHeader) + (ttcCount * sizeof(SK_OT_ULONG));
378 fontPackageBuffer.realloc(bytesWritten + extra);
379 //overlap is certain, use memmove
380 memmove(fontPackageBuffer.get() + extra, fontPackageBuffer.get(), bytesWritten);
381
382 // Write the ttc header.
383 SkTTCFHeader* ttcfHeader = reinterpret_cast<SkTTCFHeader*>(fontPackageBuffer.get());
384 ttcfHeader->ttcTag = SkTTCFHeader::TAG;
385 ttcfHeader->version = SkTTCFHeader::version_1;
386 ttcfHeader->numOffsets = SkEndian_SwapBE32(ttcCount);
387 SK_OT_ULONG* offsetPtr = SkTAfter<SK_OT_ULONG>(ttcfHeader);
388 for (int i = 0; i < ttcCount; ++i, ++offsetPtr) {
389 *offsetPtr = SkEndian_SwapBE32(SkToU32(extra));
390 }
391
392 // Fix up offsets in sfnt table entries.
393 SkSFNTHeader* sfntHeader = SkTAddOffset<SkSFNTHeader>(fontPackageBuffer.get(), extra);
394 int numTables = SkEndian_SwapBE16(sfntHeader->numTables);
395 SkSFNTHeader::TableDirectoryEntry* tableDirectory =
396 SkTAfter<SkSFNTHeader::TableDirectoryEntry>(sfntHeader);
397 for (int i = 0; i < numTables; ++i, ++tableDirectory) {
398 tableDirectory->offset = SkEndian_SwapBE32(
399 SkToU32(SkEndian_SwapBE32(SkToU32(tableDirectory->offset)) + extra));
400 }
401 } else {
402 extra = 0;
403 fontPackageBuffer.realloc(bytesWritten);
404 }
405
406 SkAutoTDelete<SkMemoryStream> newStream(new SkMemoryStream());
407 newStream->setMemoryOwned(fontPackageBuffer.detach(), bytesWritten + extra);
408
409 SkTScopedComPtr<IStream> newIStream;
410 SkIStream::CreateFromSkStream(newStream.detach(), true, &newIStream);
411
412 XPS_FONT_EMBEDDING embedding;
413 HRM(current->xpsFont->GetEmbeddingOption(&embedding),
414 "Could not get embedding option from font.");
415
416 SkTScopedComPtr<IOpcPartUri> partUri;
417 HRM(current->xpsFont->GetPartName(&partUri),
418 "Could not get part uri from font.");
419
420 HRM(current->xpsFont->SetContent(
421 newIStream.get(),
422 embedding,
423 partUri.get()),
424 "Could not set new stream for subsetted font.");
425
426 return S_OK;
427 }
428
endPortfolio()429 bool SkXPSDevice::endPortfolio() {
430 //Subset fonts
431 if (!this->fTypefaces.empty()) {
432 SkXPSDevice::TypefaceUse* current = &this->fTypefaces.front();
433 const TypefaceUse* last = &this->fTypefaces.back();
434 for (; current <= last; ++current) {
435 //Ignore return for now, if it didn't subset, let it be.
436 subset_typeface(current);
437 }
438 }
439
440 HRBM(this->fPackageWriter->Close(), "Could not close writer.");
441
442 return true;
443 }
444
xps_color(const SkColor skColor)445 static XPS_COLOR xps_color(const SkColor skColor) {
446 //XPS uses non-pre-multiplied alpha (XPS Spec 11.4).
447 XPS_COLOR xpsColor;
448 xpsColor.colorType = XPS_COLOR_TYPE_SRGB;
449 xpsColor.value.sRGB.alpha = SkColorGetA(skColor);
450 xpsColor.value.sRGB.red = SkColorGetR(skColor);
451 xpsColor.value.sRGB.green = SkColorGetG(skColor);
452 xpsColor.value.sRGB.blue = SkColorGetB(skColor);
453
454 return xpsColor;
455 }
456
xps_point(const SkPoint & point)457 static XPS_POINT xps_point(const SkPoint& point) {
458 XPS_POINT xpsPoint = {
459 SkScalarToFLOAT(point.fX),
460 SkScalarToFLOAT(point.fY),
461 };
462 return xpsPoint;
463 }
464
xps_point(const SkPoint & point,const SkMatrix & matrix)465 static XPS_POINT xps_point(const SkPoint& point, const SkMatrix& matrix) {
466 SkPoint skTransformedPoint;
467 matrix.mapXY(point.fX, point.fY, &skTransformedPoint);
468 return xps_point(skTransformedPoint);
469 }
470
xps_spread_method(SkShader::TileMode tileMode)471 static XPS_SPREAD_METHOD xps_spread_method(SkShader::TileMode tileMode) {
472 switch (tileMode) {
473 case SkShader::kClamp_TileMode:
474 return XPS_SPREAD_METHOD_PAD;
475 case SkShader::kRepeat_TileMode:
476 return XPS_SPREAD_METHOD_REPEAT;
477 case SkShader::kMirror_TileMode:
478 return XPS_SPREAD_METHOD_REFLECT;
479 default:
480 SkDEBUGFAIL("Unknown tile mode.");
481 }
482 return XPS_SPREAD_METHOD_PAD;
483 }
484
transform_offsets(SkScalar * stopOffsets,const int numOffsets,const SkPoint & start,const SkPoint & end,const SkMatrix & transform)485 static void transform_offsets(SkScalar* stopOffsets, const int numOffsets,
486 const SkPoint& start, const SkPoint& end,
487 const SkMatrix& transform) {
488 SkPoint startTransformed;
489 transform.mapXY(start.fX, start.fY, &startTransformed);
490 SkPoint endTransformed;
491 transform.mapXY(end.fX, end.fY, &endTransformed);
492
493 //Manhattan distance between transformed start and end.
494 SkScalar startToEnd = (endTransformed.fX - startTransformed.fX)
495 + (endTransformed.fY - startTransformed.fY);
496 if (SkScalarNearlyZero(startToEnd)) {
497 for (int i = 0; i < numOffsets; ++i) {
498 stopOffsets[i] = 0;
499 }
500 return;
501 }
502
503 for (int i = 0; i < numOffsets; ++i) {
504 SkPoint stop;
505 stop.fX = SkScalarMul(end.fX - start.fX, stopOffsets[i]);
506 stop.fY = SkScalarMul(end.fY - start.fY, stopOffsets[i]);
507
508 SkPoint stopTransformed;
509 transform.mapXY(stop.fX, stop.fY, &stopTransformed);
510
511 //Manhattan distance between transformed start and stop.
512 SkScalar startToStop = (stopTransformed.fX - startTransformed.fX)
513 + (stopTransformed.fY - startTransformed.fY);
514 //Percentage along transformed line.
515 stopOffsets[i] = startToStop / startToEnd;
516 }
517 }
518
createXpsTransform(const SkMatrix & matrix,IXpsOMMatrixTransform ** xpsTransform)519 HRESULT SkXPSDevice::createXpsTransform(const SkMatrix& matrix,
520 IXpsOMMatrixTransform** xpsTransform) {
521 SkScalar affine[6];
522 if (!matrix.asAffine(affine)) {
523 *xpsTransform = NULL;
524 return S_FALSE;
525 }
526 XPS_MATRIX rawXpsMatrix = {
527 SkScalarToFLOAT(affine[SkMatrix::kAScaleX]),
528 SkScalarToFLOAT(affine[SkMatrix::kASkewY]),
529 SkScalarToFLOAT(affine[SkMatrix::kASkewX]),
530 SkScalarToFLOAT(affine[SkMatrix::kAScaleY]),
531 SkScalarToFLOAT(affine[SkMatrix::kATransX]),
532 SkScalarToFLOAT(affine[SkMatrix::kATransY]),
533 };
534 HRM(this->fXpsFactory->CreateMatrixTransform(&rawXpsMatrix, xpsTransform),
535 "Could not create transform.");
536
537 return S_OK;
538 }
539
createPath(IXpsOMGeometryFigure * figure,IXpsOMVisualCollection * visuals,IXpsOMPath ** path)540 HRESULT SkXPSDevice::createPath(IXpsOMGeometryFigure* figure,
541 IXpsOMVisualCollection* visuals,
542 IXpsOMPath** path) {
543 SkTScopedComPtr<IXpsOMGeometry> geometry;
544 HRM(this->fXpsFactory->CreateGeometry(&geometry),
545 "Could not create geometry.");
546
547 SkTScopedComPtr<IXpsOMGeometryFigureCollection> figureCollection;
548 HRM(geometry->GetFigures(&figureCollection), "Could not get figures.");
549 HRM(figureCollection->Append(figure), "Could not add figure.");
550
551 HRM(this->fXpsFactory->CreatePath(path), "Could not create path.");
552 HRM((*path)->SetGeometryLocal(geometry.get()), "Could not set geometry");
553
554 HRM(visuals->Append(*path), "Could not add path to visuals.");
555 return S_OK;
556 }
557
createXpsSolidColorBrush(const SkColor skColor,const SkAlpha alpha,IXpsOMBrush ** xpsBrush)558 HRESULT SkXPSDevice::createXpsSolidColorBrush(const SkColor skColor,
559 const SkAlpha alpha,
560 IXpsOMBrush** xpsBrush) {
561 XPS_COLOR xpsColor = xps_color(skColor);
562 SkTScopedComPtr<IXpsOMSolidColorBrush> solidBrush;
563 HRM(this->fXpsFactory->CreateSolidColorBrush(&xpsColor, NULL, &solidBrush),
564 "Could not create solid color brush.");
565 HRM(solidBrush->SetOpacity(alpha / 255.0f), "Could not set opacity.");
566 HRM(solidBrush->QueryInterface<IXpsOMBrush>(xpsBrush), "QI Fail.");
567 return S_OK;
568 }
569
sideOfClamp(const SkRect & areaToFill,const XPS_RECT & imageViewBox,IXpsOMImageResource * image,IXpsOMVisualCollection * visuals)570 HRESULT SkXPSDevice::sideOfClamp(const SkRect& areaToFill,
571 const XPS_RECT& imageViewBox,
572 IXpsOMImageResource* image,
573 IXpsOMVisualCollection* visuals) {
574 SkTScopedComPtr<IXpsOMGeometryFigure> areaToFillFigure;
575 HR(this->createXpsRect(areaToFill, FALSE, TRUE, &areaToFillFigure));
576
577 SkTScopedComPtr<IXpsOMPath> areaToFillPath;
578 HR(this->createPath(areaToFillFigure.get(), visuals, &areaToFillPath));
579
580 SkTScopedComPtr<IXpsOMImageBrush> areaToFillBrush;
581 HRM(this->fXpsFactory->CreateImageBrush(image,
582 &imageViewBox,
583 &imageViewBox,
584 &areaToFillBrush),
585 "Could not create brush for side of clamp.");
586 HRM(areaToFillBrush->SetTileMode(XPS_TILE_MODE_FLIPXY),
587 "Could not set tile mode for side of clamp.");
588 HRM(areaToFillPath->SetFillBrushLocal(areaToFillBrush.get()),
589 "Could not set brush for side of clamp");
590
591 return S_OK;
592 }
593
cornerOfClamp(const SkRect & areaToFill,const SkColor color,IXpsOMVisualCollection * visuals)594 HRESULT SkXPSDevice::cornerOfClamp(const SkRect& areaToFill,
595 const SkColor color,
596 IXpsOMVisualCollection* visuals) {
597 SkTScopedComPtr<IXpsOMGeometryFigure> areaToFillFigure;
598 HR(this->createXpsRect(areaToFill, FALSE, TRUE, &areaToFillFigure));
599
600 SkTScopedComPtr<IXpsOMPath> areaToFillPath;
601 HR(this->createPath(areaToFillFigure.get(), visuals, &areaToFillPath));
602
603 SkTScopedComPtr<IXpsOMBrush> areaToFillBrush;
604 HR(this->createXpsSolidColorBrush(color, 0xFF, &areaToFillBrush));
605 HRM(areaToFillPath->SetFillBrushLocal(areaToFillBrush.get()),
606 "Could not set brush for corner of clamp.");
607
608 return S_OK;
609 }
610
611 static const XPS_TILE_MODE XTM_N = XPS_TILE_MODE_NONE;
612 static const XPS_TILE_MODE XTM_T = XPS_TILE_MODE_TILE;
613 static const XPS_TILE_MODE XTM_X = XPS_TILE_MODE_FLIPX;
614 static const XPS_TILE_MODE XTM_Y = XPS_TILE_MODE_FLIPY;
615 static const XPS_TILE_MODE XTM_XY = XPS_TILE_MODE_FLIPXY;
616
617 //TODO(bungeman): In the future, should skia add None,
618 //handle None+Mirror and None+Repeat correctly.
619 //None is currently an internal hack so masks don't repeat (None+None only).
620 static XPS_TILE_MODE SkToXpsTileMode[SkShader::kTileModeCount+1]
621 [SkShader::kTileModeCount+1] = {
622 //Clamp //Repeat //Mirror //None
623 /*Clamp */ XTM_N, XTM_T, XTM_Y, XTM_N,
624 /*Repeat*/ XTM_T, XTM_T, XTM_Y, XTM_N,
625 /*Mirror*/ XTM_X, XTM_X, XTM_XY, XTM_X,
626 /*None */ XTM_N, XTM_N, XTM_Y, XTM_N,
627 };
628
createXpsImageBrush(const SkBitmap & bitmap,const SkMatrix & localMatrix,const SkShader::TileMode (& xy)[2],const SkAlpha alpha,IXpsOMTileBrush ** xpsBrush)629 HRESULT SkXPSDevice::createXpsImageBrush(
630 const SkBitmap& bitmap,
631 const SkMatrix& localMatrix,
632 const SkShader::TileMode (&xy)[2],
633 const SkAlpha alpha,
634 IXpsOMTileBrush** xpsBrush) {
635 SkDynamicMemoryWStream write;
636 if (!SkImageEncoder::EncodeStream(&write, bitmap,
637 SkImageEncoder::kPNG_Type, 100)) {
638 HRM(E_FAIL, "Unable to encode bitmap as png.");
639 }
640 SkMemoryStream* read = new SkMemoryStream;
641 read->setData(write.copyToData())->unref();
642 SkTScopedComPtr<IStream> readWrapper;
643 HRM(SkIStream::CreateFromSkStream(read, true, &readWrapper),
644 "Could not create stream from png data.");
645
646 const size_t size =
647 SK_ARRAY_COUNT(L"/Documents/1/Resources/Images/" L_GUID_ID L".png");
648 wchar_t buffer[size];
649 wchar_t id[GUID_ID_LEN];
650 HR(this->createId(id, GUID_ID_LEN));
651 swprintf_s(buffer, size, L"/Documents/1/Resources/Images/%s.png", id);
652
653 SkTScopedComPtr<IOpcPartUri> imagePartUri;
654 HRM(this->fXpsFactory->CreatePartUri(buffer, &imagePartUri),
655 "Could not create image part uri.");
656
657 SkTScopedComPtr<IXpsOMImageResource> imageResource;
658 HRM(this->fXpsFactory->CreateImageResource(
659 readWrapper.get(),
660 XPS_IMAGE_TYPE_PNG,
661 imagePartUri.get(),
662 &imageResource),
663 "Could not create image resource.");
664
665 XPS_RECT bitmapRect = {
666 0.0, 0.0,
667 static_cast<FLOAT>(bitmap.width()), static_cast<FLOAT>(bitmap.height())
668 };
669 SkTScopedComPtr<IXpsOMImageBrush> xpsImageBrush;
670 HRM(this->fXpsFactory->CreateImageBrush(imageResource.get(),
671 &bitmapRect, &bitmapRect,
672 &xpsImageBrush),
673 "Could not create image brush.");
674
675 if (SkShader::kClamp_TileMode != xy[0] &&
676 SkShader::kClamp_TileMode != xy[1]) {
677
678 HRM(xpsImageBrush->SetTileMode(SkToXpsTileMode[xy[0]][xy[1]]),
679 "Could not set image tile mode");
680 HRM(xpsImageBrush->SetOpacity(alpha / 255.0f),
681 "Could not set image opacity.");
682 HRM(xpsImageBrush->QueryInterface(xpsBrush), "QI failed.");
683 } else {
684 //TODO(bungeman): compute how big this really needs to be.
685 const SkScalar BIG = SkIntToScalar(1000); //SK_ScalarMax;
686 const FLOAT BIG_F = SkScalarToFLOAT(BIG);
687 const SkScalar bWidth = SkIntToScalar(bitmap.width());
688 const SkScalar bHeight = SkIntToScalar(bitmap.height());
689
690 //create brush canvas
691 SkTScopedComPtr<IXpsOMCanvas> brushCanvas;
692 HRM(this->fXpsFactory->CreateCanvas(&brushCanvas),
693 "Could not create image brush canvas.");
694 SkTScopedComPtr<IXpsOMVisualCollection> brushVisuals;
695 HRM(brushCanvas->GetVisuals(&brushVisuals),
696 "Could not get image brush canvas visuals collection.");
697
698 //create central figure
699 const SkRect bitmapPoints = SkRect::MakeLTRB(0, 0, bWidth, bHeight);
700 SkTScopedComPtr<IXpsOMGeometryFigure> centralFigure;
701 HR(this->createXpsRect(bitmapPoints, FALSE, TRUE, ¢ralFigure));
702
703 SkTScopedComPtr<IXpsOMPath> centralPath;
704 HR(this->createPath(centralFigure.get(),
705 brushVisuals.get(),
706 ¢ralPath));
707 HRM(xpsImageBrush->SetTileMode(XPS_TILE_MODE_FLIPXY),
708 "Could not set tile mode for image brush central path.");
709 HRM(centralPath->SetFillBrushLocal(xpsImageBrush.get()),
710 "Could not set fill brush for image brush central path.");
711
712 //add left/right
713 if (SkShader::kClamp_TileMode == xy[0]) {
714 SkRect leftArea = SkRect::MakeLTRB(-BIG, 0, 0, bHeight);
715 XPS_RECT leftImageViewBox = {
716 0.0, 0.0,
717 1.0, static_cast<FLOAT>(bitmap.height()),
718 };
719 HR(this->sideOfClamp(leftArea, leftImageViewBox,
720 imageResource.get(),
721 brushVisuals.get()));
722
723 SkRect rightArea = SkRect::MakeLTRB(bWidth, 0, BIG, bHeight);
724 XPS_RECT rightImageViewBox = {
725 bitmap.width() - 1.0f, 0.0f,
726 1.0f, static_cast<FLOAT>(bitmap.height()),
727 };
728 HR(this->sideOfClamp(rightArea, rightImageViewBox,
729 imageResource.get(),
730 brushVisuals.get()));
731 }
732
733 //add top/bottom
734 if (SkShader::kClamp_TileMode == xy[1]) {
735 SkRect topArea = SkRect::MakeLTRB(0, -BIG, bWidth, 0);
736 XPS_RECT topImageViewBox = {
737 0.0, 0.0,
738 static_cast<FLOAT>(bitmap.width()), 1.0,
739 };
740 HR(this->sideOfClamp(topArea, topImageViewBox,
741 imageResource.get(),
742 brushVisuals.get()));
743
744 SkRect bottomArea = SkRect::MakeLTRB(0, bHeight, bWidth, BIG);
745 XPS_RECT bottomImageViewBox = {
746 0.0f, bitmap.height() - 1.0f,
747 static_cast<FLOAT>(bitmap.width()), 1.0f,
748 };
749 HR(this->sideOfClamp(bottomArea, bottomImageViewBox,
750 imageResource.get(),
751 brushVisuals.get()));
752 }
753
754 //add tl, tr, bl, br
755 if (SkShader::kClamp_TileMode == xy[0] &&
756 SkShader::kClamp_TileMode == xy[1]) {
757
758 SkAutoLockPixels alp(bitmap);
759
760 const SkColor tlColor = bitmap.getColor(0,0);
761 const SkRect tlArea = SkRect::MakeLTRB(-BIG, -BIG, 0, 0);
762 HR(this->cornerOfClamp(tlArea, tlColor, brushVisuals.get()));
763
764 const SkColor trColor = bitmap.getColor(bitmap.width()-1,0);
765 const SkRect trArea = SkRect::MakeLTRB(bWidth, -BIG, BIG, 0);
766 HR(this->cornerOfClamp(trArea, trColor, brushVisuals.get()));
767
768 const SkColor brColor = bitmap.getColor(bitmap.width()-1,
769 bitmap.height()-1);
770 const SkRect brArea = SkRect::MakeLTRB(bWidth, bHeight, BIG, BIG);
771 HR(this->cornerOfClamp(brArea, brColor, brushVisuals.get()));
772
773 const SkColor blColor = bitmap.getColor(0,bitmap.height()-1);
774 const SkRect blArea = SkRect::MakeLTRB(-BIG, bHeight, 0, BIG);
775 HR(this->cornerOfClamp(blArea, blColor, brushVisuals.get()));
776 }
777
778 //create visual brush from canvas
779 XPS_RECT bound = {};
780 if (SkShader::kClamp_TileMode == xy[0] &&
781 SkShader::kClamp_TileMode == xy[1]) {
782
783 bound.x = BIG_F / -2;
784 bound.y = BIG_F / -2;
785 bound.width = BIG_F;
786 bound.height = BIG_F;
787 } else if (SkShader::kClamp_TileMode == xy[0]) {
788 bound.x = BIG_F / -2;
789 bound.y = 0.0f;
790 bound.width = BIG_F;
791 bound.height = static_cast<FLOAT>(bitmap.height());
792 } else if (SkShader::kClamp_TileMode == xy[1]) {
793 bound.x = 0;
794 bound.y = BIG_F / -2;
795 bound.width = static_cast<FLOAT>(bitmap.width());
796 bound.height = BIG_F;
797 }
798 SkTScopedComPtr<IXpsOMVisualBrush> clampBrush;
799 HRM(this->fXpsFactory->CreateVisualBrush(&bound, &bound, &clampBrush),
800 "Could not create visual brush for image brush.");
801 HRM(clampBrush->SetVisualLocal(brushCanvas.get()),
802 "Could not set canvas on visual brush for image brush.");
803 HRM(clampBrush->SetTileMode(SkToXpsTileMode[xy[0]][xy[1]]),
804 "Could not set tile mode on visual brush for image brush.");
805 HRM(clampBrush->SetOpacity(alpha / 255.0f),
806 "Could not set opacity on visual brush for image brush.");
807
808 HRM(clampBrush->QueryInterface(xpsBrush), "QI failed.");
809 }
810
811 SkTScopedComPtr<IXpsOMMatrixTransform> xpsMatrixToUse;
812 HR(this->createXpsTransform(localMatrix, &xpsMatrixToUse));
813 if (xpsMatrixToUse.get()) {
814 HRM((*xpsBrush)->SetTransformLocal(xpsMatrixToUse.get()),
815 "Could not set transform for image brush.");
816 } else {
817 //TODO(bungeman): perspective bitmaps in general.
818 }
819
820 return S_OK;
821 }
822
createXpsGradientStop(const SkColor skColor,const SkScalar offset,IXpsOMGradientStop ** xpsGradStop)823 HRESULT SkXPSDevice::createXpsGradientStop(const SkColor skColor,
824 const SkScalar offset,
825 IXpsOMGradientStop** xpsGradStop) {
826 XPS_COLOR gradStopXpsColor = xps_color(skColor);
827 HRM(this->fXpsFactory->CreateGradientStop(&gradStopXpsColor,
828 NULL,
829 SkScalarToFLOAT(offset),
830 xpsGradStop),
831 "Could not create gradient stop.");
832 return S_OK;
833 }
834
createXpsLinearGradient(SkShader::GradientInfo info,const SkAlpha alpha,const SkMatrix & localMatrix,IXpsOMMatrixTransform * xpsMatrix,IXpsOMBrush ** xpsBrush)835 HRESULT SkXPSDevice::createXpsLinearGradient(SkShader::GradientInfo info,
836 const SkAlpha alpha,
837 const SkMatrix& localMatrix,
838 IXpsOMMatrixTransform* xpsMatrix,
839 IXpsOMBrush** xpsBrush) {
840 XPS_POINT startPoint;
841 XPS_POINT endPoint;
842 if (xpsMatrix) {
843 startPoint = xps_point(info.fPoint[0]);
844 endPoint = xps_point(info.fPoint[1]);
845 } else {
846 transform_offsets(info.fColorOffsets, info.fColorCount,
847 info.fPoint[0], info.fPoint[1],
848 localMatrix);
849 startPoint = xps_point(info.fPoint[0], localMatrix);
850 endPoint = xps_point(info.fPoint[1], localMatrix);
851 }
852
853 SkTScopedComPtr<IXpsOMGradientStop> gradStop0;
854 HR(createXpsGradientStop(info.fColors[0],
855 info.fColorOffsets[0],
856 &gradStop0));
857
858 SkTScopedComPtr<IXpsOMGradientStop> gradStop1;
859 HR(createXpsGradientStop(info.fColors[1],
860 info.fColorOffsets[1],
861 &gradStop1));
862
863 SkTScopedComPtr<IXpsOMLinearGradientBrush> gradientBrush;
864 HRM(this->fXpsFactory->CreateLinearGradientBrush(gradStop0.get(),
865 gradStop1.get(),
866 &startPoint,
867 &endPoint,
868 &gradientBrush),
869 "Could not create linear gradient brush.");
870 if (xpsMatrix) {
871 HRM(gradientBrush->SetTransformLocal(xpsMatrix),
872 "Could not set transform on linear gradient brush.");
873 }
874
875 SkTScopedComPtr<IXpsOMGradientStopCollection> gradStopCollection;
876 HRM(gradientBrush->GetGradientStops(&gradStopCollection),
877 "Could not get linear gradient stop collection.");
878 for (int i = 2; i < info.fColorCount; ++i) {
879 SkTScopedComPtr<IXpsOMGradientStop> gradStop;
880 HR(createXpsGradientStop(info.fColors[i],
881 info.fColorOffsets[i],
882 &gradStop));
883 HRM(gradStopCollection->Append(gradStop.get()),
884 "Could not add linear gradient stop.");
885 }
886
887 HRM(gradientBrush->SetSpreadMethod(xps_spread_method(info.fTileMode)),
888 "Could not set spread method of linear gradient.");
889
890 HRM(gradientBrush->SetOpacity(alpha / 255.0f),
891 "Could not set opacity of linear gradient brush.");
892 HRM(gradientBrush->QueryInterface<IXpsOMBrush>(xpsBrush), "QI failed");
893
894 return S_OK;
895 }
896
createXpsRadialGradient(SkShader::GradientInfo info,const SkAlpha alpha,const SkMatrix & localMatrix,IXpsOMMatrixTransform * xpsMatrix,IXpsOMBrush ** xpsBrush)897 HRESULT SkXPSDevice::createXpsRadialGradient(SkShader::GradientInfo info,
898 const SkAlpha alpha,
899 const SkMatrix& localMatrix,
900 IXpsOMMatrixTransform* xpsMatrix,
901 IXpsOMBrush** xpsBrush) {
902 SkTScopedComPtr<IXpsOMGradientStop> gradStop0;
903 HR(createXpsGradientStop(info.fColors[0],
904 info.fColorOffsets[0],
905 &gradStop0));
906
907 SkTScopedComPtr<IXpsOMGradientStop> gradStop1;
908 HR(createXpsGradientStop(info.fColors[1],
909 info.fColorOffsets[1],
910 &gradStop1));
911
912 //TODO: figure out how to fake better if not affine
913 XPS_POINT centerPoint;
914 XPS_POINT gradientOrigin;
915 XPS_SIZE radiiSizes;
916 if (xpsMatrix) {
917 centerPoint = xps_point(info.fPoint[0]);
918 gradientOrigin = xps_point(info.fPoint[0]);
919 radiiSizes.width = SkScalarToFLOAT(info.fRadius[0]);
920 radiiSizes.height = SkScalarToFLOAT(info.fRadius[0]);
921 } else {
922 centerPoint = xps_point(info.fPoint[0], localMatrix);
923 gradientOrigin = xps_point(info.fPoint[0], localMatrix);
924
925 SkScalar radius = info.fRadius[0];
926 SkVector vec[2];
927
928 vec[0].set(radius, 0);
929 vec[1].set(0, radius);
930 localMatrix.mapVectors(vec, 2);
931
932 SkScalar d0 = vec[0].length();
933 SkScalar d1 = vec[1].length();
934
935 radiiSizes.width = SkScalarToFLOAT(d0);
936 radiiSizes.height = SkScalarToFLOAT(d1);
937 }
938
939 SkTScopedComPtr<IXpsOMRadialGradientBrush> gradientBrush;
940 HRM(this->fXpsFactory->CreateRadialGradientBrush(gradStop0.get(),
941 gradStop1.get(),
942 ¢erPoint,
943 &gradientOrigin,
944 &radiiSizes,
945 &gradientBrush),
946 "Could not create radial gradient brush.");
947 if (xpsMatrix) {
948 HRM(gradientBrush->SetTransformLocal(xpsMatrix),
949 "Could not set transform on radial gradient brush.");
950 }
951
952 SkTScopedComPtr<IXpsOMGradientStopCollection> gradStopCollection;
953 HRM(gradientBrush->GetGradientStops(&gradStopCollection),
954 "Could not get radial gradient stop collection.");
955 for (int i = 2; i < info.fColorCount; ++i) {
956 SkTScopedComPtr<IXpsOMGradientStop> gradStop;
957 HR(createXpsGradientStop(info.fColors[i],
958 info.fColorOffsets[i],
959 &gradStop));
960 HRM(gradStopCollection->Append(gradStop.get()),
961 "Could not add radial gradient stop.");
962 }
963
964 HRM(gradientBrush->SetSpreadMethod(xps_spread_method(info.fTileMode)),
965 "Could not set spread method of radial gradient.");
966
967 HRM(gradientBrush->SetOpacity(alpha / 255.0f),
968 "Could not set opacity of radial gradient brush.");
969 HRM(gradientBrush->QueryInterface<IXpsOMBrush>(xpsBrush), "QI failed.");
970
971 return S_OK;
972 }
973
createXpsBrush(const SkPaint & skPaint,IXpsOMBrush ** brush,const SkMatrix * parentTransform)974 HRESULT SkXPSDevice::createXpsBrush(const SkPaint& skPaint,
975 IXpsOMBrush** brush,
976 const SkMatrix* parentTransform) {
977 const SkShader *shader = skPaint.getShader();
978 if (NULL == shader) {
979 HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush));
980 return S_OK;
981 }
982
983 //Gradient shaders.
984 SkShader::GradientInfo info;
985 info.fColorCount = 0;
986 info.fColors = NULL;
987 info.fColorOffsets = NULL;
988 SkShader::GradientType gradientType = shader->asAGradient(&info);
989
990 if (SkShader::kNone_GradientType == gradientType) {
991 //Nothing to see, move along.
992
993 } else if (SkShader::kColor_GradientType == gradientType) {
994 SkASSERT(1 == info.fColorCount);
995 SkColor color;
996 info.fColors = &color;
997 shader->asAGradient(&info);
998 SkAlpha alpha = skPaint.getAlpha();
999 HR(this->createXpsSolidColorBrush(color, alpha, brush));
1000 return S_OK;
1001
1002 } else {
1003 if (info.fColorCount == 0) {
1004 const SkColor color = skPaint.getColor();
1005 HR(this->createXpsSolidColorBrush(color, 0xFF, brush));
1006 return S_OK;
1007 }
1008
1009 SkAutoTArray<SkColor> colors(info.fColorCount);
1010 SkAutoTArray<SkScalar> colorOffsets(info.fColorCount);
1011 info.fColors = colors.get();
1012 info.fColorOffsets = colorOffsets.get();
1013 shader->asAGradient(&info);
1014
1015 if (1 == info.fColorCount) {
1016 SkColor color = info.fColors[0];
1017 SkAlpha alpha = skPaint.getAlpha();
1018 HR(this->createXpsSolidColorBrush(color, alpha, brush));
1019 return S_OK;
1020 }
1021
1022 SkMatrix localMatrix = shader->getLocalMatrix();
1023 if (parentTransform) {
1024 localMatrix.preConcat(*parentTransform);
1025 }
1026 SkTScopedComPtr<IXpsOMMatrixTransform> xpsMatrixToUse;
1027 HR(this->createXpsTransform(localMatrix, &xpsMatrixToUse));
1028
1029 if (SkShader::kLinear_GradientType == gradientType) {
1030 HR(this->createXpsLinearGradient(info,
1031 skPaint.getAlpha(),
1032 localMatrix,
1033 xpsMatrixToUse.get(),
1034 brush));
1035 return S_OK;
1036 }
1037
1038 if (SkShader::kRadial_GradientType == gradientType) {
1039 HR(this->createXpsRadialGradient(info,
1040 skPaint.getAlpha(),
1041 localMatrix,
1042 xpsMatrixToUse.get(),
1043 brush));
1044 return S_OK;
1045 }
1046
1047 if (SkShader::kConical_GradientType == gradientType) {
1048 //simple if affine and one is 0, otherwise will have to fake
1049 }
1050
1051 if (SkShader::kSweep_GradientType == gradientType) {
1052 //have to fake
1053 }
1054 }
1055
1056 SkBitmap outTexture;
1057 SkMatrix outMatrix;
1058 SkShader::TileMode xy[2];
1059 SkShader::BitmapType bitmapType = shader->asABitmap(&outTexture,
1060 &outMatrix,
1061 xy);
1062 switch (bitmapType) {
1063 case SkShader::kDefault_BitmapType: {
1064 //TODO: outMatrix??
1065 SkMatrix localMatrix = shader->getLocalMatrix();
1066 if (parentTransform) {
1067 localMatrix.preConcat(*parentTransform);
1068 }
1069
1070 SkTScopedComPtr<IXpsOMTileBrush> tileBrush;
1071 HR(this->createXpsImageBrush(outTexture,
1072 localMatrix,
1073 xy,
1074 skPaint.getAlpha(),
1075 &tileBrush));
1076
1077 HRM(tileBrush->QueryInterface<IXpsOMBrush>(brush), "QI failed.");
1078
1079 return S_OK;
1080 }
1081 default:
1082 break;
1083 }
1084
1085 HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush));
1086 return S_OK;
1087 }
1088
rect_must_be_pathed(const SkPaint & paint,const SkMatrix & matrix)1089 static bool rect_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) {
1090 const bool zeroWidth = (0 == paint.getStrokeWidth());
1091 const bool stroke = (SkPaint::kFill_Style != paint.getStyle());
1092
1093 return paint.getPathEffect() ||
1094 paint.getMaskFilter() ||
1095 paint.getRasterizer() ||
1096 (stroke && (
1097 (matrix.hasPerspective() && !zeroWidth) ||
1098 SkPaint::kMiter_Join != paint.getStrokeJoin() ||
1099 (SkPaint::kMiter_Join == paint.getStrokeJoin() &&
1100 paint.getStrokeMiter() < SK_ScalarSqrt2)
1101 ))
1102 ;
1103 }
1104
createXpsRect(const SkRect & rect,BOOL stroke,BOOL fill,IXpsOMGeometryFigure ** xpsRect)1105 HRESULT SkXPSDevice::createXpsRect(const SkRect& rect, BOOL stroke, BOOL fill,
1106 IXpsOMGeometryFigure** xpsRect) {
1107 const SkPoint points[4] = {
1108 { rect.fLeft, rect.fTop },
1109 { rect.fRight, rect.fTop },
1110 { rect.fRight, rect.fBottom },
1111 { rect.fLeft, rect.fBottom },
1112 };
1113 return this->createXpsQuad(points, stroke, fill, xpsRect);
1114 }
createXpsQuad(const SkPoint (& points)[4],BOOL stroke,BOOL fill,IXpsOMGeometryFigure ** xpsQuad)1115 HRESULT SkXPSDevice::createXpsQuad(const SkPoint (&points)[4],
1116 BOOL stroke, BOOL fill,
1117 IXpsOMGeometryFigure** xpsQuad) {
1118 // Define the start point.
1119 XPS_POINT startPoint = xps_point(points[0]);
1120
1121 // Create the figure.
1122 HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint, xpsQuad),
1123 "Could not create quad geometry figure.");
1124
1125 // Define the type of each segment.
1126 XPS_SEGMENT_TYPE segmentTypes[3] = {
1127 XPS_SEGMENT_TYPE_LINE,
1128 XPS_SEGMENT_TYPE_LINE,
1129 XPS_SEGMENT_TYPE_LINE,
1130 };
1131
1132 // Define the x and y coordinates of each corner of the figure.
1133 FLOAT segmentData[6] = {
1134 SkScalarToFLOAT(points[1].fX), SkScalarToFLOAT(points[1].fY),
1135 SkScalarToFLOAT(points[2].fX), SkScalarToFLOAT(points[2].fY),
1136 SkScalarToFLOAT(points[3].fX), SkScalarToFLOAT(points[3].fY),
1137 };
1138
1139 // Describe if the segments are stroked.
1140 BOOL segmentStrokes[3] = {
1141 stroke, stroke, stroke,
1142 };
1143
1144 // Add the segment data to the figure.
1145 HRM((*xpsQuad)->SetSegments(
1146 3, 6,
1147 segmentTypes , segmentData, segmentStrokes),
1148 "Could not add segment data to quad.");
1149
1150 // Set the closed and filled properties of the figure.
1151 HRM((*xpsQuad)->SetIsClosed(stroke), "Could not set quad close.");
1152 HRM((*xpsQuad)->SetIsFilled(fill), "Could not set quad fill.");
1153
1154 return S_OK;
1155 }
1156
drawPoints(const SkDraw & d,SkCanvas::PointMode mode,size_t count,const SkPoint points[],const SkPaint & paint)1157 void SkXPSDevice::drawPoints(const SkDraw& d, SkCanvas::PointMode mode,
1158 size_t count, const SkPoint points[],
1159 const SkPaint& paint) {
1160 //This will call back into the device to do the drawing.
1161 d.drawPoints(mode, count, points, paint, true);
1162 }
1163
drawVertices(const SkDraw &,SkCanvas::VertexMode,int vertexCount,const SkPoint verts[],const SkPoint texs[],const SkColor colors[],SkXfermode * xmode,const uint16_t indices[],int indexCount,const SkPaint & paint)1164 void SkXPSDevice::drawVertices(const SkDraw&, SkCanvas::VertexMode,
1165 int vertexCount, const SkPoint verts[],
1166 const SkPoint texs[], const SkColor colors[],
1167 SkXfermode* xmode, const uint16_t indices[],
1168 int indexCount, const SkPaint& paint) {
1169 //TODO: override this for XPS
1170 SkDEBUGF(("XPS drawVertices not yet implemented."));
1171 }
1172
drawPaint(const SkDraw & d,const SkPaint & origPaint)1173 void SkXPSDevice::drawPaint(const SkDraw& d, const SkPaint& origPaint) {
1174 const SkRect r = SkRect::MakeSize(this->fCurrentCanvasSize);
1175
1176 //If trying to paint with a stroke, ignore that and fill.
1177 SkPaint* fillPaint = const_cast<SkPaint*>(&origPaint);
1178 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
1179 if (paint->getStyle() != SkPaint::kFill_Style) {
1180 paint.writable()->setStyle(SkPaint::kFill_Style);
1181 }
1182
1183 this->internalDrawRect(d, r, false, *fillPaint);
1184 }
1185
drawRect(const SkDraw & d,const SkRect & r,const SkPaint & paint)1186 void SkXPSDevice::drawRect(const SkDraw& d,
1187 const SkRect& r,
1188 const SkPaint& paint) {
1189 this->internalDrawRect(d, r, true, paint);
1190 }
1191
drawRRect(const SkDraw & d,const SkRRect & rr,const SkPaint & paint)1192 void SkXPSDevice::drawRRect(const SkDraw& d,
1193 const SkRRect& rr,
1194 const SkPaint& paint) {
1195 SkPath path;
1196 path.addRRect(rr);
1197 this->drawPath(d, path, paint, NULL, true);
1198 }
1199
internalDrawRect(const SkDraw & d,const SkRect & r,bool transformRect,const SkPaint & paint)1200 void SkXPSDevice::internalDrawRect(const SkDraw& d,
1201 const SkRect& r,
1202 bool transformRect,
1203 const SkPaint& paint) {
1204 //Exit early if there is nothing to draw.
1205 if (d.fClip->isEmpty() ||
1206 (paint.getAlpha() == 0 && paint.getXfermode() == NULL)) {
1207 return;
1208 }
1209
1210 //Path the rect if we can't optimize it.
1211 if (rect_must_be_pathed(paint, *d.fMatrix)) {
1212 SkPath tmp;
1213 tmp.addRect(r);
1214 tmp.setFillType(SkPath::kWinding_FillType);
1215 this->drawPath(d, tmp, paint, NULL, true);
1216 return;
1217 }
1218
1219 //Create the shaded path.
1220 SkTScopedComPtr<IXpsOMPath> shadedPath;
1221 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1222 "Could not create shaded path for rect.");
1223
1224 //Create the shaded geometry.
1225 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1226 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1227 "Could not create shaded geometry for rect.");
1228
1229 //Add the geometry to the shaded path.
1230 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1231 "Could not set shaded geometry for rect.");
1232
1233 //Set the brushes.
1234 BOOL fill = FALSE;
1235 BOOL stroke = FALSE;
1236 HRV(this->shadePath(shadedPath.get(), paint, *d.fMatrix, &fill, &stroke));
1237
1238 bool xpsTransformsPath = true;
1239 //Transform the geometry.
1240 if (transformRect && xpsTransformsPath) {
1241 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1242 HRV(this->createXpsTransform(*d.fMatrix, &xpsTransform));
1243 if (xpsTransform.get()) {
1244 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1245 "Could not set transform for rect.");
1246 } else {
1247 xpsTransformsPath = false;
1248 }
1249 }
1250
1251 //Create the figure.
1252 SkTScopedComPtr<IXpsOMGeometryFigure> rectFigure;
1253 {
1254 SkPoint points[4] = {
1255 { r.fLeft, r.fTop },
1256 { r.fLeft, r.fBottom },
1257 { r.fRight, r.fBottom },
1258 { r.fRight, r.fTop },
1259 };
1260 if (!xpsTransformsPath && transformRect) {
1261 d.fMatrix->mapPoints(points, SK_ARRAY_COUNT(points));
1262 }
1263 HRV(this->createXpsQuad(points, stroke, fill, &rectFigure));
1264 }
1265
1266 //Get the figures of the shaded geometry.
1267 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1268 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1269 "Could not get shaded figures for rect.");
1270
1271 //Add the figure to the shaded geometry figures.
1272 HRVM(shadedFigures->Append(rectFigure.get()),
1273 "Could not add shaded figure for rect.");
1274
1275 HRV(this->clip(shadedPath.get(), d));
1276
1277 //Add the shaded path to the current visuals.
1278 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1279 HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals),
1280 "Could not get current visuals for rect.");
1281 HRVM(currentVisuals->Append(shadedPath.get()),
1282 "Could not add rect to current visuals.");
1283 }
1284
close_figure(const SkTDArray<XPS_SEGMENT_TYPE> & segmentTypes,const SkTDArray<BOOL> & segmentStrokes,const SkTDArray<FLOAT> & segmentData,BOOL stroke,BOOL fill,IXpsOMGeometryFigure * figure,IXpsOMGeometryFigureCollection * figures)1285 static HRESULT close_figure(const SkTDArray<XPS_SEGMENT_TYPE>& segmentTypes,
1286 const SkTDArray<BOOL>& segmentStrokes,
1287 const SkTDArray<FLOAT>& segmentData,
1288 BOOL stroke, BOOL fill,
1289 IXpsOMGeometryFigure* figure,
1290 IXpsOMGeometryFigureCollection* figures) {
1291 // Add the segment data to the figure.
1292 HRM(figure->SetSegments(segmentTypes.count(), segmentData.count(),
1293 segmentTypes.begin() , segmentData.begin(),
1294 segmentStrokes.begin()),
1295 "Could not set path segments.");
1296
1297 // Set the closed and filled properties of the figure.
1298 HRM(figure->SetIsClosed(stroke), "Could not set path closed.");
1299 HRM(figure->SetIsFilled(fill), "Could not set path fill.");
1300
1301 // Add the figure created above to this geometry.
1302 HRM(figures->Append(figure), "Could not add path to geometry.");
1303 return S_OK;
1304 }
1305
addXpsPathGeometry(IXpsOMGeometryFigureCollection * xpsFigures,BOOL stroke,BOOL fill,const SkPath & path)1306 HRESULT SkXPSDevice::addXpsPathGeometry(
1307 IXpsOMGeometryFigureCollection* xpsFigures,
1308 BOOL stroke, BOOL fill, const SkPath& path) {
1309 SkTDArray<XPS_SEGMENT_TYPE> segmentTypes;
1310 SkTDArray<BOOL> segmentStrokes;
1311 SkTDArray<FLOAT> segmentData;
1312
1313 SkTScopedComPtr<IXpsOMGeometryFigure> xpsFigure;
1314 SkPath::Iter iter(path, true);
1315 SkPoint points[4];
1316 SkPath::Verb verb;
1317 while ((verb = iter.next(points)) != SkPath::kDone_Verb) {
1318 switch (verb) {
1319 case SkPath::kMove_Verb: {
1320 if (xpsFigure.get()) {
1321 HR(close_figure(segmentTypes, segmentStrokes, segmentData,
1322 stroke, fill,
1323 xpsFigure.get() , xpsFigures));
1324 xpsFigure.reset();
1325 segmentTypes.rewind();
1326 segmentStrokes.rewind();
1327 segmentData.rewind();
1328 }
1329 // Define the start point.
1330 XPS_POINT startPoint = xps_point(points[0]);
1331 // Create the figure.
1332 HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint,
1333 &xpsFigure),
1334 "Could not create path geometry figure.");
1335 break;
1336 }
1337 case SkPath::kLine_Verb:
1338 if (iter.isCloseLine()) break; //ignore the line, auto-closed
1339 segmentTypes.push(XPS_SEGMENT_TYPE_LINE);
1340 segmentStrokes.push(stroke);
1341 segmentData.push(SkScalarToFLOAT(points[1].fX));
1342 segmentData.push(SkScalarToFLOAT(points[1].fY));
1343 break;
1344 case SkPath::kQuad_Verb:
1345 segmentTypes.push(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER);
1346 segmentStrokes.push(stroke);
1347 segmentData.push(SkScalarToFLOAT(points[1].fX));
1348 segmentData.push(SkScalarToFLOAT(points[1].fY));
1349 segmentData.push(SkScalarToFLOAT(points[2].fX));
1350 segmentData.push(SkScalarToFLOAT(points[2].fY));
1351 break;
1352 case SkPath::kCubic_Verb:
1353 segmentTypes.push(XPS_SEGMENT_TYPE_BEZIER);
1354 segmentStrokes.push(stroke);
1355 segmentData.push(SkScalarToFLOAT(points[1].fX));
1356 segmentData.push(SkScalarToFLOAT(points[1].fY));
1357 segmentData.push(SkScalarToFLOAT(points[2].fX));
1358 segmentData.push(SkScalarToFLOAT(points[2].fY));
1359 segmentData.push(SkScalarToFLOAT(points[3].fX));
1360 segmentData.push(SkScalarToFLOAT(points[3].fY));
1361 break;
1362 case SkPath::kConic_Verb: {
1363 const SkScalar tol = SK_Scalar1 / 4;
1364 SkAutoConicToQuads converter;
1365 const SkPoint* quads =
1366 converter.computeQuads(points, iter.conicWeight(), tol);
1367 for (int i = 0; i < converter.countQuads(); ++i) {
1368 segmentTypes.push(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER);
1369 segmentStrokes.push(stroke);
1370 segmentData.push(SkScalarToFLOAT(quads[2 * i + 1].fX));
1371 segmentData.push(SkScalarToFLOAT(quads[2 * i + 1].fY));
1372 segmentData.push(SkScalarToFLOAT(quads[2 * i + 2].fX));
1373 segmentData.push(SkScalarToFLOAT(quads[2 * i + 2].fY));
1374 }
1375 break;
1376 }
1377 case SkPath::kClose_Verb:
1378 // we ignore these, and just get the whole segment from
1379 // the corresponding line/quad/cubic verbs
1380 break;
1381 default:
1382 SkDEBUGFAIL("unexpected verb");
1383 break;
1384 }
1385 }
1386 if (xpsFigure.get()) {
1387 HR(close_figure(segmentTypes, segmentStrokes, segmentData,
1388 stroke, fill,
1389 xpsFigure.get(), xpsFigures));
1390 }
1391 return S_OK;
1392 }
1393
convertToPpm(const SkMaskFilter * filter,SkMatrix * matrix,SkVector * ppuScale,const SkIRect & clip,SkIRect * clipIRect)1394 void SkXPSDevice::convertToPpm(const SkMaskFilter* filter,
1395 SkMatrix* matrix,
1396 SkVector* ppuScale,
1397 const SkIRect& clip, SkIRect* clipIRect) {
1398 //This action is in unit space, but the ppm is specified in physical space.
1399 ppuScale->set(fCurrentPixelsPerMeter.fX / fCurrentUnitsPerMeter.fX,
1400 fCurrentPixelsPerMeter.fY / fCurrentUnitsPerMeter.fY);
1401
1402 matrix->postScale(ppuScale->fX, ppuScale->fY);
1403
1404 const SkIRect& irect = clip;
1405 SkRect clipRect = SkRect::MakeLTRB(
1406 SkScalarMul(SkIntToScalar(irect.fLeft), ppuScale->fX),
1407 SkScalarMul(SkIntToScalar(irect.fTop), ppuScale->fY),
1408 SkScalarMul(SkIntToScalar(irect.fRight), ppuScale->fX),
1409 SkScalarMul(SkIntToScalar(irect.fBottom), ppuScale->fY));
1410 clipRect.roundOut(clipIRect);
1411 }
1412
applyMask(const SkDraw & d,const SkMask & mask,const SkVector & ppuScale,IXpsOMPath * shadedPath)1413 HRESULT SkXPSDevice::applyMask(const SkDraw& d,
1414 const SkMask& mask,
1415 const SkVector& ppuScale,
1416 IXpsOMPath* shadedPath) {
1417 //Get the geometry object.
1418 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1419 HRM(shadedPath->GetGeometry(&shadedGeometry),
1420 "Could not get mask shaded geometry.");
1421
1422 //Get the figures from the geometry.
1423 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1424 HRM(shadedGeometry->GetFigures(&shadedFigures),
1425 "Could not get mask shaded figures.");
1426
1427 SkMatrix m;
1428 m.reset();
1429 m.setTranslate(SkIntToScalar(mask.fBounds.fLeft),
1430 SkIntToScalar(mask.fBounds.fTop));
1431 m.postScale(SkScalarInvert(ppuScale.fX), SkScalarInvert(ppuScale.fY));
1432
1433 SkShader::TileMode xy[2];
1434 xy[0] = (SkShader::TileMode)3;
1435 xy[1] = (SkShader::TileMode)3;
1436
1437 SkBitmap bm;
1438 bm.installMaskPixels(mask);
1439
1440 SkTScopedComPtr<IXpsOMTileBrush> maskBrush;
1441 HR(this->createXpsImageBrush(bm, m, xy, 0xFF, &maskBrush));
1442 HRM(shadedPath->SetOpacityMaskBrushLocal(maskBrush.get()),
1443 "Could not set mask.");
1444
1445 const SkRect universeRect = SkRect::MakeLTRB(0, 0,
1446 this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight);
1447 SkTScopedComPtr<IXpsOMGeometryFigure> shadedFigure;
1448 HRM(this->createXpsRect(universeRect, FALSE, TRUE, &shadedFigure),
1449 "Could not create mask shaded figure.");
1450 HRM(shadedFigures->Append(shadedFigure.get()),
1451 "Could not add mask shaded figure.");
1452
1453 HR(this->clip(shadedPath, d));
1454
1455 //Add the path to the active visual collection.
1456 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1457 HRM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals),
1458 "Could not get mask current visuals.");
1459 HRM(currentVisuals->Append(shadedPath),
1460 "Could not add masked shaded path to current visuals.");
1461
1462 return S_OK;
1463 }
1464
shadePath(IXpsOMPath * shadedPath,const SkPaint & shaderPaint,const SkMatrix & matrix,BOOL * fill,BOOL * stroke)1465 HRESULT SkXPSDevice::shadePath(IXpsOMPath* shadedPath,
1466 const SkPaint& shaderPaint,
1467 const SkMatrix& matrix,
1468 BOOL* fill, BOOL* stroke) {
1469 *fill = FALSE;
1470 *stroke = FALSE;
1471
1472 const SkPaint::Style style = shaderPaint.getStyle();
1473 const bool hasFill = SkPaint::kFill_Style == style
1474 || SkPaint::kStrokeAndFill_Style == style;
1475 const bool hasStroke = SkPaint::kStroke_Style == style
1476 || SkPaint::kStrokeAndFill_Style == style;
1477
1478 //TODO(bungeman): use dictionaries and lookups.
1479 if (hasFill) {
1480 *fill = TRUE;
1481 SkTScopedComPtr<IXpsOMBrush> fillBrush;
1482 HR(this->createXpsBrush(shaderPaint, &fillBrush, &matrix));
1483 HRM(shadedPath->SetFillBrushLocal(fillBrush.get()),
1484 "Could not set fill for shaded path.");
1485 }
1486
1487 if (hasStroke) {
1488 *stroke = TRUE;
1489 SkTScopedComPtr<IXpsOMBrush> strokeBrush;
1490 HR(this->createXpsBrush(shaderPaint, &strokeBrush, &matrix));
1491 HRM(shadedPath->SetStrokeBrushLocal(strokeBrush.get()),
1492 "Could not set stroke brush for shaded path.");
1493 HRM(shadedPath->SetStrokeThickness(
1494 SkScalarToFLOAT(shaderPaint.getStrokeWidth())),
1495 "Could not set shaded path stroke thickness.");
1496
1497 if (0 == shaderPaint.getStrokeWidth()) {
1498 //XPS hair width is a hack. (XPS Spec 11.6.12).
1499 SkTScopedComPtr<IXpsOMDashCollection> dashes;
1500 HRM(shadedPath->GetStrokeDashes(&dashes),
1501 "Could not set dashes for shaded path.");
1502 XPS_DASH dash;
1503 dash.length = 1.0;
1504 dash.gap = 0.0;
1505 HRM(dashes->Append(&dash), "Could not add dashes to shaded path.");
1506 HRM(shadedPath->SetStrokeDashOffset(-2.0),
1507 "Could not set dash offset for shaded path.");
1508 }
1509 }
1510 return S_OK;
1511 }
1512
drawPath(const SkDraw & d,const SkPath & platonicPath,const SkPaint & origPaint,const SkMatrix * prePathMatrix,bool pathIsMutable)1513 void SkXPSDevice::drawPath(const SkDraw& d,
1514 const SkPath& platonicPath,
1515 const SkPaint& origPaint,
1516 const SkMatrix* prePathMatrix,
1517 bool pathIsMutable) {
1518 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
1519
1520 // nothing to draw
1521 if (d.fClip->isEmpty() ||
1522 (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) {
1523 return;
1524 }
1525
1526 SkPath modifiedPath;
1527 const bool paintHasPathEffect = paint->getPathEffect()
1528 || paint->getStyle() != SkPaint::kFill_Style;
1529
1530 //Apply pre-path matrix [Platonic-path -> Skeletal-path].
1531 SkMatrix matrix = *d.fMatrix;
1532 SkPath* skeletalPath = const_cast<SkPath*>(&platonicPath);
1533 if (prePathMatrix) {
1534 if (paintHasPathEffect || paint->getRasterizer()) {
1535 if (!pathIsMutable) {
1536 skeletalPath = &modifiedPath;
1537 pathIsMutable = true;
1538 }
1539 platonicPath.transform(*prePathMatrix, skeletalPath);
1540 } else {
1541 matrix.preConcat(*prePathMatrix);
1542 }
1543 }
1544
1545 //Apply path effect [Skeletal-path -> Fillable-path].
1546 SkPath* fillablePath = skeletalPath;
1547 if (paintHasPathEffect) {
1548 if (!pathIsMutable) {
1549 fillablePath = &modifiedPath;
1550 pathIsMutable = true;
1551 }
1552 bool fill = paint->getFillPath(*skeletalPath, fillablePath);
1553
1554 SkPaint* writablePaint = paint.writable();
1555 writablePaint->setPathEffect(NULL);
1556 if (fill) {
1557 writablePaint->setStyle(SkPaint::kFill_Style);
1558 } else {
1559 writablePaint->setStyle(SkPaint::kStroke_Style);
1560 writablePaint->setStrokeWidth(0);
1561 }
1562 }
1563
1564 //Create the shaded path. This will be the path which is painted.
1565 SkTScopedComPtr<IXpsOMPath> shadedPath;
1566 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1567 "Could not create shaded path for path.");
1568
1569 //Create the geometry for the shaded path.
1570 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1571 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1572 "Could not create shaded geometry for path.");
1573
1574 //Add the geometry to the shaded path.
1575 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1576 "Could not add the shaded geometry to shaded path.");
1577
1578 SkRasterizer* rasterizer = paint->getRasterizer();
1579 SkMaskFilter* filter = paint->getMaskFilter();
1580
1581 //Determine if we will draw or shade and mask.
1582 if (rasterizer || filter) {
1583 if (paint->getStyle() != SkPaint::kFill_Style) {
1584 paint.writable()->setStyle(SkPaint::kFill_Style);
1585 }
1586 }
1587
1588 //Set the brushes.
1589 BOOL fill;
1590 BOOL stroke;
1591 HRV(this->shadePath(shadedPath.get(),
1592 *paint,
1593 *d.fMatrix,
1594 &fill,
1595 &stroke));
1596
1597 //Rasterizer
1598 if (rasterizer) {
1599 SkIRect clipIRect;
1600 SkVector ppuScale;
1601 this->convertToPpm(filter,
1602 &matrix,
1603 &ppuScale,
1604 d.fClip->getBounds(),
1605 &clipIRect);
1606
1607 SkMask* mask = NULL;
1608
1609 //[Fillable-path -> Mask]
1610 SkMask rasteredMask;
1611 if (rasterizer->rasterize(
1612 *fillablePath,
1613 matrix,
1614 &clipIRect,
1615 filter, //just to compute how much to draw.
1616 &rasteredMask,
1617 SkMask::kComputeBoundsAndRenderImage_CreateMode)) {
1618
1619 SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage);
1620 mask = &rasteredMask;
1621
1622 //[Mask -> Mask]
1623 SkMask filteredMask;
1624 if (filter &&
1625 filter->filterMask(&filteredMask, *mask, *d.fMatrix, NULL)) {
1626
1627 mask = &filteredMask;
1628 } else {
1629 filteredMask.fImage = NULL;
1630 }
1631 SkAutoMaskFreeImage filteredAmi(filteredMask.fImage);
1632
1633 //Draw mask.
1634 HRV(this->applyMask(d, *mask, ppuScale, shadedPath.get()));
1635 }
1636 return;
1637 }
1638
1639 //Mask filter
1640 if (filter) {
1641 SkIRect clipIRect;
1642 SkVector ppuScale;
1643 this->convertToPpm(filter,
1644 &matrix,
1645 &ppuScale,
1646 d.fClip->getBounds(),
1647 &clipIRect);
1648
1649 //[Fillable-path -> Pixel-path]
1650 SkPath* pixelPath = pathIsMutable ? fillablePath : &modifiedPath;
1651 fillablePath->transform(matrix, pixelPath);
1652
1653 SkMask* mask = NULL;
1654
1655 //[Pixel-path -> Mask]
1656 SkMask rasteredMask;
1657 if (SkDraw::DrawToMask(
1658 *pixelPath,
1659 &clipIRect,
1660 filter, //just to compute how much to draw.
1661 &matrix,
1662 &rasteredMask,
1663 SkMask::kComputeBoundsAndRenderImage_CreateMode,
1664 paint->getStyle())) {
1665
1666 SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage);
1667 mask = &rasteredMask;
1668
1669 //[Mask -> Mask]
1670 SkMask filteredMask;
1671 if (filter->filterMask(&filteredMask,
1672 rasteredMask,
1673 matrix,
1674 NULL)) {
1675 mask = &filteredMask;
1676 } else {
1677 filteredMask.fImage = NULL;
1678 }
1679 SkAutoMaskFreeImage filteredAmi(filteredMask.fImage);
1680
1681 //Draw mask.
1682 HRV(this->applyMask(d, *mask, ppuScale, shadedPath.get()));
1683 }
1684 return;
1685 }
1686
1687 //Get the figures from the shaded geometry.
1688 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1689 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1690 "Could not get shaded figures for shaded path.");
1691
1692 bool xpsTransformsPath = true;
1693
1694 //Set the fill rule.
1695 SkPath* xpsCompatiblePath = fillablePath;
1696 XPS_FILL_RULE xpsFillRule;
1697 switch (fillablePath->getFillType()) {
1698 case SkPath::kWinding_FillType:
1699 xpsFillRule = XPS_FILL_RULE_NONZERO;
1700 break;
1701 case SkPath::kEvenOdd_FillType:
1702 xpsFillRule = XPS_FILL_RULE_EVENODD;
1703 break;
1704 case SkPath::kInverseWinding_FillType: {
1705 //[Fillable-path (inverse winding) -> XPS-path (inverse even odd)]
1706 if (!pathIsMutable) {
1707 xpsCompatiblePath = &modifiedPath;
1708 pathIsMutable = true;
1709 }
1710 if (!Simplify(*fillablePath, xpsCompatiblePath)) {
1711 SkDEBUGF(("Could not simplify inverse winding path."));
1712 return;
1713 }
1714 }
1715 // The xpsCompatiblePath is noW inverse even odd, so fall through.
1716 case SkPath::kInverseEvenOdd_FillType: {
1717 const SkRect universe = SkRect::MakeLTRB(
1718 0, 0,
1719 this->fCurrentCanvasSize.fWidth,
1720 this->fCurrentCanvasSize.fHeight);
1721 SkTScopedComPtr<IXpsOMGeometryFigure> addOneFigure;
1722 HRV(this->createXpsRect(universe, FALSE, TRUE, &addOneFigure));
1723 HRVM(shadedFigures->Append(addOneFigure.get()),
1724 "Could not add even-odd flip figure to shaded path.");
1725 xpsTransformsPath = false;
1726 xpsFillRule = XPS_FILL_RULE_EVENODD;
1727 break;
1728 }
1729 default:
1730 SkDEBUGFAIL("Unknown SkPath::FillType.");
1731 }
1732 HRVM(shadedGeometry->SetFillRule(xpsFillRule),
1733 "Could not set fill rule for shaded path.");
1734
1735 //Create the XPS transform, if possible.
1736 if (xpsTransformsPath) {
1737 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1738 HRV(this->createXpsTransform(matrix, &xpsTransform));
1739
1740 if (xpsTransform.get()) {
1741 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1742 "Could not set transform on shaded path.");
1743 } else {
1744 xpsTransformsPath = false;
1745 }
1746 }
1747
1748 SkPath* devicePath = xpsCompatiblePath;
1749 if (!xpsTransformsPath) {
1750 //[Fillable-path -> Device-path]
1751 devicePath = pathIsMutable ? xpsCompatiblePath : &modifiedPath;
1752 xpsCompatiblePath->transform(matrix, devicePath);
1753 }
1754 HRV(this->addXpsPathGeometry(shadedFigures.get(),
1755 stroke, fill, *devicePath));
1756
1757 HRV(this->clip(shadedPath.get(), d));
1758
1759 //Add the path to the active visual collection.
1760 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1761 HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals),
1762 "Could not get current visuals for shaded path.");
1763 HRVM(currentVisuals->Append(shadedPath.get()),
1764 "Could not add shaded path to current visuals.");
1765 }
1766
clip(IXpsOMVisual * xpsVisual,const SkDraw & d)1767 HRESULT SkXPSDevice::clip(IXpsOMVisual* xpsVisual, const SkDraw& d) {
1768 SkPath clipPath;
1769 SkAssertResult(d.fClip->getBoundaryPath(&clipPath));
1770
1771 return this->clipToPath(xpsVisual, clipPath, XPS_FILL_RULE_EVENODD);
1772 }
clipToPath(IXpsOMVisual * xpsVisual,const SkPath & clipPath,XPS_FILL_RULE fillRule)1773 HRESULT SkXPSDevice::clipToPath(IXpsOMVisual* xpsVisual,
1774 const SkPath& clipPath,
1775 XPS_FILL_RULE fillRule) {
1776 //Create the geometry.
1777 SkTScopedComPtr<IXpsOMGeometry> clipGeometry;
1778 HRM(this->fXpsFactory->CreateGeometry(&clipGeometry),
1779 "Could not create clip geometry.");
1780
1781 //Get the figure collection of the geometry.
1782 SkTScopedComPtr<IXpsOMGeometryFigureCollection> clipFigures;
1783 HRM(clipGeometry->GetFigures(&clipFigures),
1784 "Could not get the clip figures.");
1785
1786 //Create the figures into the geometry.
1787 HR(this->addXpsPathGeometry(
1788 clipFigures.get(),
1789 FALSE, TRUE, clipPath));
1790
1791 HRM(clipGeometry->SetFillRule(fillRule),
1792 "Could not set fill rule.");
1793 HRM(xpsVisual->SetClipGeometryLocal(clipGeometry.get()),
1794 "Could not set clip geometry.");
1795
1796 return S_OK;
1797 }
1798
drawBitmap(const SkDraw & d,const SkBitmap & bitmap,const SkMatrix & matrix,const SkPaint & paint)1799 void SkXPSDevice::drawBitmap(const SkDraw& d, const SkBitmap& bitmap,
1800 const SkMatrix& matrix, const SkPaint& paint) {
1801 if (d.fClip->isEmpty()) {
1802 return;
1803 }
1804
1805 SkIRect srcRect;
1806 srcRect.set(0, 0, bitmap.width(), bitmap.height());
1807
1808 //Create the new shaded path.
1809 SkTScopedComPtr<IXpsOMPath> shadedPath;
1810 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1811 "Could not create path for bitmap.");
1812
1813 //Create the shaded geometry.
1814 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1815 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1816 "Could not create geometry for bitmap.");
1817
1818 //Add the shaded geometry to the shaded path.
1819 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1820 "Could not set the geometry for bitmap.");
1821
1822 //Get the shaded figures from the shaded geometry.
1823 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1824 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1825 "Could not get the figures for bitmap.");
1826
1827 SkMatrix transform = matrix;
1828 transform.postConcat(*d.fMatrix);
1829
1830 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1831 HRV(this->createXpsTransform(transform, &xpsTransform));
1832 if (xpsTransform.get()) {
1833 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1834 "Could not set transform for bitmap.");
1835 } else {
1836 //TODO: perspective that bitmap!
1837 }
1838
1839 SkTScopedComPtr<IXpsOMGeometryFigure> rectFigure;
1840 if (xpsTransform.get()) {
1841 const SkShader::TileMode xy[2] = {
1842 SkShader::kClamp_TileMode,
1843 SkShader::kClamp_TileMode,
1844 };
1845 SkTScopedComPtr<IXpsOMTileBrush> xpsImageBrush;
1846 HRV(this->createXpsImageBrush(bitmap,
1847 transform,
1848 xy,
1849 paint.getAlpha(),
1850 &xpsImageBrush));
1851 HRVM(shadedPath->SetFillBrushLocal(xpsImageBrush.get()),
1852 "Could not set bitmap brush.");
1853
1854 const SkRect bitmapRect = SkRect::MakeLTRB(0, 0,
1855 SkIntToScalar(srcRect.width()), SkIntToScalar(srcRect.height()));
1856 HRV(this->createXpsRect(bitmapRect, FALSE, TRUE, &rectFigure));
1857 }
1858 HRVM(shadedFigures->Append(rectFigure.get()),
1859 "Could not add bitmap figure.");
1860
1861 //Get the current visual collection and add the shaded path to it.
1862 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1863 HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals),
1864 "Could not get current visuals for bitmap");
1865 HRVM(currentVisuals->Append(shadedPath.get()),
1866 "Could not add bitmap to current visuals.");
1867
1868 HRV(this->clip(shadedPath.get(), d));
1869 }
1870
drawSprite(const SkDraw &,const SkBitmap & bitmap,int x,int y,const SkPaint & paint)1871 void SkXPSDevice::drawSprite(const SkDraw&, const SkBitmap& bitmap,
1872 int x, int y,
1873 const SkPaint& paint) {
1874 //TODO: override this for XPS
1875 SkDEBUGF(("XPS drawSprite not yet implemented."));
1876 }
1877
CreateTypefaceUse(const SkPaint & paint,TypefaceUse ** typefaceUse)1878 HRESULT SkXPSDevice::CreateTypefaceUse(const SkPaint& paint,
1879 TypefaceUse** typefaceUse) {
1880 SkAutoResolveDefaultTypeface typeface(paint.getTypeface());
1881
1882 //Check cache.
1883 const SkFontID typefaceID = typeface->uniqueID();
1884 if (!this->fTypefaces.empty()) {
1885 TypefaceUse* current = &this->fTypefaces.front();
1886 const TypefaceUse* last = &this->fTypefaces.back();
1887 for (; current <= last; ++current) {
1888 if (current->typefaceId == typefaceID) {
1889 *typefaceUse = current;
1890 return S_OK;
1891 }
1892 }
1893 }
1894
1895 //TODO: create glyph only fonts
1896 //and let the host deal with what kind of font we're looking at.
1897 XPS_FONT_EMBEDDING embedding = XPS_FONT_EMBEDDING_RESTRICTED;
1898
1899 SkTScopedComPtr<IStream> fontStream;
1900 int ttcIndex;
1901 SkStream* fontData = typeface->openStream(&ttcIndex);
1902 //TODO: cannot handle FON fonts.
1903 HRM(SkIStream::CreateFromSkStream(fontData, true, &fontStream),
1904 "Could not create font stream.");
1905
1906 const size_t size =
1907 SK_ARRAY_COUNT(L"/Resources/Fonts/" L_GUID_ID L".odttf");
1908 wchar_t buffer[size];
1909 wchar_t id[GUID_ID_LEN];
1910 HR(this->createId(id, GUID_ID_LEN));
1911 swprintf_s(buffer, size, L"/Resources/Fonts/%s.odttf", id);
1912
1913 SkTScopedComPtr<IOpcPartUri> partUri;
1914 HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri),
1915 "Could not create font resource part uri.");
1916
1917 SkTScopedComPtr<IXpsOMFontResource> xpsFontResource;
1918 HRM(this->fXpsFactory->CreateFontResource(fontStream.get(),
1919 embedding,
1920 partUri.get(),
1921 FALSE,
1922 &xpsFontResource),
1923 "Could not create font resource.");
1924
1925 //TODO: change openStream to return -1 for non-ttc, get rid of this.
1926 uint8_t* data = (uint8_t*)fontData->getMemoryBase();
1927 bool isTTC = (data &&
1928 fontData->getLength() >= sizeof(SkTTCFHeader) &&
1929 ((SkTTCFHeader*)data)->ttcTag == SkTTCFHeader::TAG);
1930
1931 TypefaceUse& newTypefaceUse = this->fTypefaces.push_back();
1932 newTypefaceUse.typefaceId = typefaceID;
1933 newTypefaceUse.ttcIndex = isTTC ? ttcIndex : -1;
1934 newTypefaceUse.fontData = fontData;
1935 newTypefaceUse.xpsFont = xpsFontResource.release();
1936
1937 SkAutoGlyphCache agc(paint, NULL, &SkMatrix::I());
1938 SkGlyphCache* glyphCache = agc.getCache();
1939 unsigned int glyphCount = glyphCache->getGlyphCount();
1940 newTypefaceUse.glyphsUsed = new SkBitSet(glyphCount);
1941
1942 *typefaceUse = &newTypefaceUse;
1943 return S_OK;
1944 }
1945
AddGlyphs(const SkDraw & d,IXpsOMObjectFactory * xpsFactory,IXpsOMCanvas * canvas,TypefaceUse * font,LPCWSTR text,XPS_GLYPH_INDEX * xpsGlyphs,UINT32 xpsGlyphsLen,XPS_POINT * origin,FLOAT fontSize,XPS_STYLE_SIMULATION sims,const SkMatrix & transform,const SkPaint & paint)1946 HRESULT SkXPSDevice::AddGlyphs(const SkDraw& d,
1947 IXpsOMObjectFactory* xpsFactory,
1948 IXpsOMCanvas* canvas,
1949 TypefaceUse* font,
1950 LPCWSTR text,
1951 XPS_GLYPH_INDEX* xpsGlyphs,
1952 UINT32 xpsGlyphsLen,
1953 XPS_POINT *origin,
1954 FLOAT fontSize,
1955 XPS_STYLE_SIMULATION sims,
1956 const SkMatrix& transform,
1957 const SkPaint& paint) {
1958 SkTScopedComPtr<IXpsOMGlyphs> glyphs;
1959 HRM(xpsFactory->CreateGlyphs(font->xpsFont, &glyphs), "Could not create glyphs.");
1960 HRM(glyphs->SetFontFaceIndex(font->ttcIndex), "Could not set glyph font face index.");
1961
1962 //XPS uses affine transformations for everything...
1963 //...except positioning text.
1964 bool useCanvasForClip;
1965 if ((transform.getType() & ~SkMatrix::kTranslate_Mask) == 0) {
1966 origin->x += SkScalarToFLOAT(transform.getTranslateX());
1967 origin->y += SkScalarToFLOAT(transform.getTranslateY());
1968 useCanvasForClip = false;
1969 } else {
1970 SkTScopedComPtr<IXpsOMMatrixTransform> xpsMatrixToUse;
1971 HR(this->createXpsTransform(transform, &xpsMatrixToUse));
1972 if (xpsMatrixToUse.get()) {
1973 HRM(glyphs->SetTransformLocal(xpsMatrixToUse.get()),
1974 "Could not set transform matrix.");
1975 useCanvasForClip = true;
1976 } else {
1977 SkDEBUGFAIL("Attempt to add glyphs in perspective.");
1978 useCanvasForClip = false;
1979 }
1980 }
1981
1982 SkTScopedComPtr<IXpsOMGlyphsEditor> glyphsEditor;
1983 HRM(glyphs->GetGlyphsEditor(&glyphsEditor), "Could not get glyph editor.");
1984
1985 if (text) {
1986 HRM(glyphsEditor->SetUnicodeString(text),
1987 "Could not set unicode string.");
1988 }
1989
1990 if (xpsGlyphs) {
1991 HRM(glyphsEditor->SetGlyphIndices(xpsGlyphsLen, xpsGlyphs),
1992 "Could not set glyphs.");
1993 }
1994
1995 HRM(glyphsEditor->ApplyEdits(), "Could not apply glyph edits.");
1996
1997 SkTScopedComPtr<IXpsOMBrush> xpsFillBrush;
1998 HR(this->createXpsBrush(
1999 paint,
2000 &xpsFillBrush,
2001 useCanvasForClip ? NULL : &transform));
2002
2003 HRM(glyphs->SetFillBrushLocal(xpsFillBrush.get()),
2004 "Could not set fill brush.");
2005
2006 HRM(glyphs->SetOrigin(origin), "Could not set glyph origin.");
2007
2008 HRM(glyphs->SetFontRenderingEmSize(fontSize),
2009 "Could not set font size.");
2010
2011 HRM(glyphs->SetStyleSimulations(sims),
2012 "Could not set style simulations.");
2013
2014 SkTScopedComPtr<IXpsOMVisualCollection> visuals;
2015 HRM(canvas->GetVisuals(&visuals), "Could not get glyph canvas visuals.");
2016
2017 if (!useCanvasForClip) {
2018 HR(this->clip(glyphs.get(), d));
2019 HRM(visuals->Append(glyphs.get()), "Could not add glyphs to canvas.");
2020 } else {
2021 SkTScopedComPtr<IXpsOMCanvas> glyphCanvas;
2022 HRM(this->fXpsFactory->CreateCanvas(&glyphCanvas),
2023 "Could not create glyph canvas.");
2024
2025 SkTScopedComPtr<IXpsOMVisualCollection> glyphCanvasVisuals;
2026 HRM(glyphCanvas->GetVisuals(&glyphCanvasVisuals),
2027 "Could not get glyph visuals collection.");
2028
2029 HRM(glyphCanvasVisuals->Append(glyphs.get()),
2030 "Could not add glyphs to page.");
2031 HR(this->clip(glyphCanvas.get(), d));
2032
2033 HRM(visuals->Append(glyphCanvas.get()),
2034 "Could not add glyph canvas to page.");
2035 }
2036
2037 return S_OK;
2038 }
2039
2040 struct SkXPSDrawProcs : public SkDrawProcs {
2041 public:
2042 /** [in] Advance width and offsets for glyphs measured in
2043 hundredths of the font em size (XPS Spec 5.1.3). */
2044 FLOAT centemPerUnit;
2045 /** [in,out] The accumulated glyphs used in the current typeface. */
2046 SkBitSet* glyphUse;
2047 /** [out] The glyphs to draw. */
2048 SkTDArray<XPS_GLYPH_INDEX> xpsGlyphs;
2049 };
2050
xps_draw_1_glyph(const SkDraw1Glyph & state,Sk48Dot16 fx,Sk48Dot16 fy,const SkGlyph & skGlyph)2051 static void xps_draw_1_glyph(const SkDraw1Glyph& state,
2052 Sk48Dot16 fx, Sk48Dot16 fy,
2053 const SkGlyph& skGlyph) {
2054 SkASSERT(skGlyph.fWidth > 0 && skGlyph.fHeight > 0);
2055
2056 SkXPSDrawProcs* procs = static_cast<SkXPSDrawProcs*>(state.fDraw->fProcs);
2057
2058 //Draw pre-adds half the sampling frequency for floor rounding.
2059 SkScalar x = Sk48Dot16ToScalar(fx) - state.fHalfSampleX;
2060 SkScalar y = Sk48Dot16ToScalar(fy) - state.fHalfSampleY;
2061
2062 XPS_GLYPH_INDEX* xpsGlyph = procs->xpsGlyphs.append();
2063 uint16_t glyphID = skGlyph.getGlyphID();
2064 procs->glyphUse->setBit(glyphID, true);
2065 xpsGlyph->index = glyphID;
2066 if (1 == procs->xpsGlyphs.count()) {
2067 xpsGlyph->advanceWidth = 0.0f;
2068 xpsGlyph->horizontalOffset = SkScalarToFloat(x) * procs->centemPerUnit;
2069 xpsGlyph->verticalOffset = SkScalarToFloat(y) * -procs->centemPerUnit;
2070 } else {
2071 const XPS_GLYPH_INDEX& first = procs->xpsGlyphs[0];
2072 xpsGlyph->advanceWidth = 0.0f;
2073 xpsGlyph->horizontalOffset = (SkScalarToFloat(x) * procs->centemPerUnit)
2074 - first.horizontalOffset;
2075 xpsGlyph->verticalOffset = (SkScalarToFloat(y) * -procs->centemPerUnit)
2076 - first.verticalOffset;
2077 }
2078 }
2079
text_draw_init(const SkPaint & paint,const void * text,size_t byteLength,SkBitSet & glyphsUsed,SkDraw & myDraw,SkXPSDrawProcs & procs)2080 static void text_draw_init(const SkPaint& paint,
2081 const void* text, size_t byteLength,
2082 SkBitSet& glyphsUsed,
2083 SkDraw& myDraw, SkXPSDrawProcs& procs) {
2084 procs.fD1GProc = xps_draw_1_glyph;
2085 int numGlyphGuess;
2086 switch (paint.getTextEncoding()) {
2087 case SkPaint::kUTF8_TextEncoding:
2088 numGlyphGuess = SkUTF8_CountUnichars(
2089 static_cast<const char *>(text),
2090 byteLength);
2091 break;
2092 case SkPaint::kUTF16_TextEncoding:
2093 numGlyphGuess = SkUTF16_CountUnichars(
2094 static_cast<const uint16_t *>(text),
2095 SkToInt(byteLength));
2096 break;
2097 case SkPaint::kGlyphID_TextEncoding:
2098 numGlyphGuess = SkToInt(byteLength / 2);
2099 break;
2100 default:
2101 SK_ALWAYSBREAK(true);
2102 }
2103 procs.xpsGlyphs.setReserve(numGlyphGuess);
2104 procs.glyphUse = &glyphsUsed;
2105 procs.centemPerUnit = 100.0f / SkScalarToFLOAT(paint.getTextSize());
2106
2107 myDraw.fProcs = &procs;
2108 }
2109
text_must_be_pathed(const SkPaint & paint,const SkMatrix & matrix)2110 static bool text_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) {
2111 const SkPaint::Style style = paint.getStyle();
2112 return matrix.hasPerspective()
2113 || SkPaint::kStroke_Style == style
2114 || SkPaint::kStrokeAndFill_Style == style
2115 || paint.getMaskFilter()
2116 || paint.getRasterizer()
2117 ;
2118 }
2119
drawText(const SkDraw & d,const void * text,size_t byteLen,SkScalar x,SkScalar y,const SkPaint & paint)2120 void SkXPSDevice::drawText(const SkDraw& d,
2121 const void* text, size_t byteLen,
2122 SkScalar x, SkScalar y,
2123 const SkPaint& paint) {
2124 if (byteLen < 1) return;
2125
2126 if (text_must_be_pathed(paint, *d.fMatrix)) {
2127 SkPath path;
2128 paint.getTextPath(text, byteLen, x, y, &path);
2129 this->drawPath(d, path, paint, NULL, true);
2130 //TODO: add automation "text"
2131 return;
2132 }
2133
2134 TypefaceUse* typeface;
2135 HRV(CreateTypefaceUse(paint, &typeface));
2136
2137 SkDraw myDraw(d);
2138 myDraw.fMatrix = &SkMatrix::I();
2139 SkXPSDrawProcs procs;
2140 text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs);
2141
2142 myDraw.drawText(static_cast<const char*>(text), byteLen, x, y, paint);
2143
2144 // SkDraw may have clipped out the glyphs, so we need to check
2145 if (procs.xpsGlyphs.count() == 0) {
2146 return;
2147 }
2148
2149 XPS_POINT origin = {
2150 procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit,
2151 procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit,
2152 };
2153 procs.xpsGlyphs[0].horizontalOffset = 0.0f;
2154 procs.xpsGlyphs[0].verticalOffset = 0.0f;
2155
2156 HRV(AddGlyphs(d,
2157 this->fXpsFactory.get(),
2158 this->fCurrentXpsCanvas.get(),
2159 typeface,
2160 NULL,
2161 procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(),
2162 &origin,
2163 SkScalarToFLOAT(paint.getTextSize()),
2164 XPS_STYLE_SIMULATION_NONE,
2165 *d.fMatrix,
2166 paint));
2167 }
2168
drawPosText(const SkDraw & d,const void * text,size_t byteLen,const SkScalar pos[],int scalarsPerPos,const SkPoint & offset,const SkPaint & paint)2169 void SkXPSDevice::drawPosText(const SkDraw& d,
2170 const void* text, size_t byteLen,
2171 const SkScalar pos[], int scalarsPerPos,
2172 const SkPoint& offset, const SkPaint& paint) {
2173 if (byteLen < 1) return;
2174
2175 if (text_must_be_pathed(paint, *d.fMatrix)) {
2176 SkPath path;
2177 //TODO: make this work, Draw currently does not handle as well.
2178 //paint.getTextPath(text, byteLength, x, y, &path);
2179 //this->drawPath(d, path, paint, NULL, true);
2180 //TODO: add automation "text"
2181 return;
2182 }
2183
2184 TypefaceUse* typeface;
2185 HRV(CreateTypefaceUse(paint, &typeface));
2186
2187 SkDraw myDraw(d);
2188 myDraw.fMatrix = &SkMatrix::I();
2189 SkXPSDrawProcs procs;
2190 text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs);
2191
2192 myDraw.drawPosText(static_cast<const char*>(text), byteLen, pos, scalarsPerPos, offset, paint);
2193
2194 // SkDraw may have clipped out the glyphs, so we need to check
2195 if (procs.xpsGlyphs.count() == 0) {
2196 return;
2197 }
2198
2199 XPS_POINT origin = {
2200 procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit,
2201 procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit,
2202 };
2203 procs.xpsGlyphs[0].horizontalOffset = 0.0f;
2204 procs.xpsGlyphs[0].verticalOffset = 0.0f;
2205
2206 HRV(AddGlyphs(d,
2207 this->fXpsFactory.get(),
2208 this->fCurrentXpsCanvas.get(),
2209 typeface,
2210 NULL,
2211 procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(),
2212 &origin,
2213 SkScalarToFLOAT(paint.getTextSize()),
2214 XPS_STYLE_SIMULATION_NONE,
2215 *d.fMatrix,
2216 paint));
2217 }
2218
drawDevice(const SkDraw & d,SkBaseDevice * dev,int x,int y,const SkPaint &)2219 void SkXPSDevice::drawDevice(const SkDraw& d, SkBaseDevice* dev,
2220 int x, int y,
2221 const SkPaint&) {
2222 SkXPSDevice* that = static_cast<SkXPSDevice*>(dev);
2223
2224 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
2225 XPS_MATRIX rawTransform = {
2226 1.0f,
2227 0.0f,
2228 0.0f,
2229 1.0f,
2230 static_cast<FLOAT>(x),
2231 static_cast<FLOAT>(y),
2232 };
2233 HRVM(this->fXpsFactory->CreateMatrixTransform(&rawTransform, &xpsTransform),
2234 "Could not create layer transform.");
2235 HRVM(that->fCurrentXpsCanvas->SetTransformLocal(xpsTransform.get()),
2236 "Could not set layer transform.");
2237
2238 //Get the current visual collection and add the layer to it.
2239 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
2240 HRVM(this->fCurrentXpsCanvas->GetVisuals(¤tVisuals),
2241 "Could not get current visuals for layer.");
2242 HRVM(currentVisuals->Append(that->fCurrentXpsCanvas.get()),
2243 "Could not add layer to current visuals.");
2244 }
2245
onCreateDevice(const CreateInfo & info,const SkPaint *)2246 SkBaseDevice* SkXPSDevice::onCreateDevice(const CreateInfo& info, const SkPaint*) {
2247 //Conditional for bug compatibility with PDF device.
2248 #if 0
2249 if (SkBaseDevice::kGeneral_Usage == info.fUsage) {
2250 return NULL;
2251 SK_CRASH();
2252 //To what stream do we write?
2253 //SkXPSDevice* dev = new SkXPSDevice(this);
2254 //SkSize s = SkSize::Make(width, height);
2255 //dev->BeginCanvas(s, s, SkMatrix::I());
2256 //return dev;
2257 }
2258 #endif
2259 return new SkXPSDevice(this->fXpsFactory.get());
2260 }
2261
SkXPSDevice(IXpsOMObjectFactory * xpsFactory)2262 SkXPSDevice::SkXPSDevice(IXpsOMObjectFactory* xpsFactory)
2263 : SkBitmapDevice(make_fake_bitmap(10000, 10000))
2264 , fCurrentPage(0) {
2265
2266 HRVM(CoCreateInstance(
2267 CLSID_XpsOMObjectFactory,
2268 NULL,
2269 CLSCTX_INPROC_SERVER,
2270 IID_PPV_ARGS(&this->fXpsFactory)),
2271 "Could not create factory for layer.");
2272
2273 HRVM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas),
2274 "Could not create canvas for layer.");
2275 }
2276
2277