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comparison: gfx/skia/trunk/src/device/xps/SkXPSDevice.cpp

gfx/skia/trunk/src/device/xps/SkXPSDevice.cpp

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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 #ifndef UNICODE
9 #define UNICODE
10 #endif
11 #ifndef _UNICODE
12 #define _UNICODE
13 #endif
14 #include "SkTypes.h"
15 #include <ObjBase.h>
16 #include <XpsObjectModel.h>
17 #include <T2EmbApi.h>
18 #include <FontSub.h>
19
20 #include "SkColor.h"
21 #include "SkConstexprMath.h"
22 #include "SkData.h"
23 #include "SkDraw.h"
24 #include "SkDrawProcs.h"
25 #include "SkEndian.h"
26 #include "SkFontHost.h"
27 #include "SkGlyphCache.h"
28 #include "SkHRESULT.h"
29 #include "SkImageEncoder.h"
30 #include "SkIStream.h"
31 #include "SkMaskFilter.h"
32 #include "SkPaint.h"
33 #include "SkPoint.h"
34 #include "SkRasterizer.h"
35 #include "SkSFNTHeader.h"
36 #include "SkShader.h"
37 #include "SkSize.h"
38 #include "SkStream.h"
39 #include "SkTDArray.h"
40 #include "SkTLazy.h"
41 #include "SkTScopedComPtr.h"
42 #include "SkTTCFHeader.h"
43 #include "SkTypefacePriv.h"
44 #include "SkUtils.h"
45 #include "SkXPSDevice.h"
46
47 //Windows defines a FLOAT type,
48 //make it clear when converting a scalar that this is what is wanted.
49 #define SkScalarToFLOAT(n) SkScalarToFloat(n)
50
51 //Dummy representation of a GUID from create_id.
52 #define L_GUID_ID L"XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX"
53 //Length of GUID representation from create_id, including NULL terminator.
54 #define GUID_ID_LEN SK_ARRAY_COUNT(L_GUID_ID)
55
56 /**
57 Formats a GUID and places it into buffer.
58 buffer should have space for at least GUID_ID_LEN wide characters.
59 The string will always be wchar null terminated.
60 XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX0
61 @return -1 if there was an error, > 0 if success.
62 */
63 static int format_guid(const GUID& guid,
64 wchar_t* buffer, size_t bufferSize,
65 wchar_t sep = '-') {
66 SkASSERT(bufferSize >= GUID_ID_LEN);
67 return swprintf_s(buffer,
68 bufferSize,
69 L"%08lX%c%04X%c%04X%c%02X%02X%c%02X%02X%02X%02X%02X%02X",
70 guid.Data1,
71 sep,
72 guid.Data2,
73 sep,
74 guid.Data3,
75 sep,
76 guid.Data4[0],
77 guid.Data4[1],
78 sep,
79 guid.Data4[2],
80 guid.Data4[3],
81 guid.Data4[4],
82 guid.Data4[5],
83 guid.Data4[6],
84 guid.Data4[7]);
85 }
86
87 /**
88 Creates a GUID based id and places it into buffer.
89 buffer should have space for at least GUID_ID_LEN wide characters.
90 The string will always be wchar null terminated.
91 XXXXXXXXsXXXXsXXXXsXXXXsXXXXXXXXXXXX0
92 The string may begin with a digit,
93 and so may not be suitable as a bare resource key.
94 */
95 static HRESULT create_id(wchar_t* buffer, size_t bufferSize,
96 wchar_t sep = '-') {
97 GUID guid = {};
98 HRM(CoCreateGuid(&guid), "Could not create GUID for id.");
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
107 static SkBitmap make_fake_bitmap(int width, int height) {
108 SkBitmap bitmap;
109 bitmap.setConfig(SkImageInfo::MakeUnknown(width, height));
110 return bitmap;
111 }
112
113 // TODO: should inherit from SkBaseDevice instead of SkBitmapDevice...
114 SkXPSDevice::SkXPSDevice()
115 : SkBitmapDevice(make_fake_bitmap(10000, 10000))
116 , fCurrentPage(0) {
117 }
118
119 SkXPSDevice::~SkXPSDevice() {
120 }
121
122 SkXPSDevice::TypefaceUse::TypefaceUse()
123 : typefaceId(0xffffffff)
124 , fontData(NULL)
125 , xpsFont(NULL)
126 , glyphsUsed(NULL) {
127 }
128
129 SkXPSDevice::TypefaceUse::~TypefaceUse() {
130 //xpsFont owns fontData ref
131 this->xpsFont->Release();
132 delete this->glyphsUsed;
133 }
134
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
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
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(create_id(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
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
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
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
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(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 SkEndian_SwapBE32(tableDirectory->offset) + extra);
400 }
401 } else {
402 extra = 0;
403 fontPackageBuffer.realloc(bytesWritten);
404 }
405
406 SkAutoTUnref<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
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
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
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
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
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
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] = SkScalarDiv(startToStop, startToEnd);
516 }
517 }
518
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
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
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
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
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
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(create_id(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, &centralFigure));
702
703 SkTScopedComPtr<IXpsOMPath> centralPath;
704 HR(this->createPath(centralFigure.get(),
705 brushVisuals.get(),
706 &centralPath));
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 (NULL != 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
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
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 (NULL != 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 (NULL != 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
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 (NULL != 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 &centerPoint,
943 &gradientOrigin,
944 &radiiSizes,
945 &gradientBrush),
946 "Could not create radial gradient brush.");
947 if (NULL != 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
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 (NULL != 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::kRadial2_GradientType == gradientType ||
1048 SkShader::kConical_GradientType == gradientType) {
1049 //simple if affine and one is 0, otherwise will have to fake
1050 }
1051
1052 if (SkShader::kSweep_GradientType == gradientType) {
1053 //have to fake
1054 }
1055 }
1056
1057 SkBitmap outTexture;
1058 SkMatrix outMatrix;
1059 SkShader::TileMode xy[2];
1060 SkShader::BitmapType bitmapType = shader->asABitmap(&outTexture,
1061 &outMatrix,
1062 xy);
1063 switch (bitmapType) {
1064 case SkShader::kNone_BitmapType:
1065 break;
1066 case SkShader::kDefault_BitmapType: {
1067 //TODO: outMatrix??
1068 SkMatrix localMatrix = shader->getLocalMatrix();
1069 if (NULL != parentTransform) {
1070 localMatrix.preConcat(*parentTransform);
1071 }
1072
1073 SkTScopedComPtr<IXpsOMTileBrush> tileBrush;
1074 HR(this->createXpsImageBrush(outTexture,
1075 localMatrix,
1076 xy,
1077 skPaint.getAlpha(),
1078 &tileBrush));
1079
1080 HRM(tileBrush->QueryInterface<IXpsOMBrush>(brush), "QI failed.");
1081
1082 return S_OK;
1083 }
1084 case SkShader::kRadial_BitmapType:
1085 case SkShader::kSweep_BitmapType:
1086 case SkShader::kTwoPointRadial_BitmapType:
1087 default:
1088 break;
1089 }
1090
1091 HR(this->createXpsSolidColorBrush(skPaint.getColor(), 0xFF, brush));
1092 return S_OK;
1093 }
1094
1095 static bool rect_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) {
1096 const bool zeroWidth = (0 == paint.getStrokeWidth());
1097 const bool stroke = (SkPaint::kFill_Style != paint.getStyle());
1098
1099 return paint.getPathEffect() ||
1100 paint.getMaskFilter() ||
1101 paint.getRasterizer() ||
1102 (stroke && (
1103 (matrix.hasPerspective() && !zeroWidth) ||
1104 SkPaint::kMiter_Join != paint.getStrokeJoin() ||
1105 (SkPaint::kMiter_Join == paint.getStrokeJoin() &&
1106 paint.getStrokeMiter() < SK_ScalarSqrt2)
1107 ))
1108 ;
1109 }
1110
1111 HRESULT SkXPSDevice::createXpsRect(const SkRect& rect, BOOL stroke, BOOL fill,
1112 IXpsOMGeometryFigure** xpsRect) {
1113 const SkPoint points[4] = {
1114 { rect.fLeft, rect.fTop },
1115 { rect.fRight, rect.fTop },
1116 { rect.fRight, rect.fBottom },
1117 { rect.fLeft, rect.fBottom },
1118 };
1119 return this->createXpsQuad(points, stroke, fill, xpsRect);
1120 }
1121 HRESULT SkXPSDevice::createXpsQuad(const SkPoint (&points)[4],
1122 BOOL stroke, BOOL fill,
1123 IXpsOMGeometryFigure** xpsQuad) {
1124 // Define the start point.
1125 XPS_POINT startPoint = xps_point(points[0]);
1126
1127 // Create the figure.
1128 HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint, xpsQuad),
1129 "Could not create quad geometry figure.");
1130
1131 // Define the type of each segment.
1132 XPS_SEGMENT_TYPE segmentTypes[3] = {
1133 XPS_SEGMENT_TYPE_LINE,
1134 XPS_SEGMENT_TYPE_LINE,
1135 XPS_SEGMENT_TYPE_LINE,
1136 };
1137
1138 // Define the x and y coordinates of each corner of the figure.
1139 FLOAT segmentData[6] = {
1140 SkScalarToFLOAT(points[1].fX), SkScalarToFLOAT(points[1].fY),
1141 SkScalarToFLOAT(points[2].fX), SkScalarToFLOAT(points[2].fY),
1142 SkScalarToFLOAT(points[3].fX), SkScalarToFLOAT(points[3].fY),
1143 };
1144
1145 // Describe if the segments are stroked.
1146 BOOL segmentStrokes[3] = {
1147 stroke, stroke, stroke,
1148 };
1149
1150 // Add the segment data to the figure.
1151 HRM((*xpsQuad)->SetSegments(
1152 3, 6,
1153 segmentTypes , segmentData, segmentStrokes),
1154 "Could not add segment data to quad.");
1155
1156 // Set the closed and filled properties of the figure.
1157 HRM((*xpsQuad)->SetIsClosed(stroke), "Could not set quad close.");
1158 HRM((*xpsQuad)->SetIsFilled(fill), "Could not set quad fill.");
1159
1160 return S_OK;
1161 }
1162
1163 void SkXPSDevice::clear(SkColor color) {
1164 //TODO: override this for XPS
1165 SkDEBUGF(("XPS clear not yet implemented."));
1166 }
1167
1168 void SkXPSDevice::drawPoints(const SkDraw& d, SkCanvas::PointMode mode,
1169 size_t count, const SkPoint points[],
1170 const SkPaint& paint) {
1171 //This will call back into the device to do the drawing.
1172 d.drawPoints(mode, count, points, paint, true);
1173 }
1174
1175 void SkXPSDevice::drawVertices(const SkDraw&, SkCanvas::VertexMode,
1176 int vertexCount, const SkPoint verts[],
1177 const SkPoint texs[], const SkColor colors[],
1178 SkXfermode* xmode, const uint16_t indices[],
1179 int indexCount, const SkPaint& paint) {
1180 //TODO: override this for XPS
1181 SkDEBUGF(("XPS drawVertices not yet implemented."));
1182 }
1183
1184 void SkXPSDevice::drawPaint(const SkDraw& d, const SkPaint& origPaint) {
1185 const SkRect r = SkRect::MakeSize(this->fCurrentCanvasSize);
1186
1187 //If trying to paint with a stroke, ignore that and fill.
1188 SkPaint* fillPaint = const_cast<SkPaint*>(&origPaint);
1189 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
1190 if (paint->getStyle() != SkPaint::kFill_Style) {
1191 paint.writable()->setStyle(SkPaint::kFill_Style);
1192 }
1193
1194 this->internalDrawRect(d, r, false, *fillPaint);
1195 }
1196
1197 void SkXPSDevice::drawRect(const SkDraw& d,
1198 const SkRect& r,
1199 const SkPaint& paint) {
1200 this->internalDrawRect(d, r, true, paint);
1201 }
1202
1203 void SkXPSDevice::drawRRect(const SkDraw& d,
1204 const SkRRect& rr,
1205 const SkPaint& paint) {
1206 SkPath path;
1207 path.addRRect(rr);
1208 this->drawPath(d, path, paint, NULL, true);
1209 }
1210
1211 void SkXPSDevice::internalDrawRect(const SkDraw& d,
1212 const SkRect& r,
1213 bool transformRect,
1214 const SkPaint& paint) {
1215 //Exit early if there is nothing to draw.
1216 if (d.fClip->isEmpty() ||
1217 (paint.getAlpha() == 0 && paint.getXfermode() == NULL)) {
1218 return;
1219 }
1220
1221 //Path the rect if we can't optimize it.
1222 if (rect_must_be_pathed(paint, *d.fMatrix)) {
1223 SkPath tmp;
1224 tmp.addRect(r);
1225 tmp.setFillType(SkPath::kWinding_FillType);
1226 this->drawPath(d, tmp, paint, NULL, true);
1227 return;
1228 }
1229
1230 //Create the shaded path.
1231 SkTScopedComPtr<IXpsOMPath> shadedPath;
1232 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1233 "Could not create shaded path for rect.");
1234
1235 //Create the shaded geometry.
1236 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1237 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1238 "Could not create shaded geometry for rect.");
1239
1240 //Add the geometry to the shaded path.
1241 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1242 "Could not set shaded geometry for rect.");
1243
1244 //Set the brushes.
1245 BOOL fill = FALSE;
1246 BOOL stroke = FALSE;
1247 HRV(this->shadePath(shadedPath.get(), paint, *d.fMatrix, &fill, &stroke));
1248
1249 bool xpsTransformsPath = true;
1250 //Transform the geometry.
1251 if (transformRect && xpsTransformsPath) {
1252 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1253 HRV(this->createXpsTransform(*d.fMatrix, &xpsTransform));
1254 if (xpsTransform.get()) {
1255 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1256 "Could not set transform for rect.");
1257 } else {
1258 xpsTransformsPath = false;
1259 }
1260 }
1261
1262 //Create the figure.
1263 SkTScopedComPtr<IXpsOMGeometryFigure> rectFigure;
1264 {
1265 SkPoint points[4] = {
1266 { r.fLeft, r.fTop },
1267 { r.fLeft, r.fBottom },
1268 { r.fRight, r.fBottom },
1269 { r.fRight, r.fTop },
1270 };
1271 if (!xpsTransformsPath && transformRect) {
1272 d.fMatrix->mapPoints(points, SK_ARRAY_COUNT(points));
1273 }
1274 HRV(this->createXpsQuad(points, stroke, fill, &rectFigure));
1275 }
1276
1277 //Get the figures of the shaded geometry.
1278 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1279 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1280 "Could not get shaded figures for rect.");
1281
1282 //Add the figure to the shaded geometry figures.
1283 HRVM(shadedFigures->Append(rectFigure.get()),
1284 "Could not add shaded figure for rect.");
1285
1286 HRV(this->clip(shadedPath.get(), d));
1287
1288 //Add the shaded path to the current visuals.
1289 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1290 HRVM(this->fCurrentXpsCanvas->GetVisuals(&currentVisuals),
1291 "Could not get current visuals for rect.");
1292 HRVM(currentVisuals->Append(shadedPath.get()),
1293 "Could not add rect to current visuals.");
1294 }
1295
1296 static HRESULT close_figure(const SkTDArray<XPS_SEGMENT_TYPE>& segmentTypes,
1297 const SkTDArray<BOOL>& segmentStrokes,
1298 const SkTDArray<FLOAT>& segmentData,
1299 BOOL stroke, BOOL fill,
1300 IXpsOMGeometryFigure* figure,
1301 IXpsOMGeometryFigureCollection* figures) {
1302 // Add the segment data to the figure.
1303 HRM(figure->SetSegments(segmentTypes.count(), segmentData.count(),
1304 segmentTypes.begin() , segmentData.begin(),
1305 segmentStrokes.begin()),
1306 "Could not set path segments.");
1307
1308 // Set the closed and filled properties of the figure.
1309 HRM(figure->SetIsClosed(stroke), "Could not set path closed.");
1310 HRM(figure->SetIsFilled(fill), "Could not set path fill.");
1311
1312 // Add the figure created above to this geometry.
1313 HRM(figures->Append(figure), "Could not add path to geometry.");
1314 return S_OK;
1315 }
1316
1317 HRESULT SkXPSDevice::addXpsPathGeometry(
1318 IXpsOMGeometryFigureCollection* xpsFigures,
1319 BOOL stroke, BOOL fill, const SkPath& path) {
1320 SkTDArray<XPS_SEGMENT_TYPE> segmentTypes;
1321 SkTDArray<BOOL> segmentStrokes;
1322 SkTDArray<FLOAT> segmentData;
1323
1324 SkTScopedComPtr<IXpsOMGeometryFigure> xpsFigure;
1325 SkPath::Iter iter(path, true);
1326 SkPoint points[4];
1327 SkPath::Verb verb;
1328 while ((verb = iter.next(points)) != SkPath::kDone_Verb) {
1329 switch (verb) {
1330 case SkPath::kMove_Verb: {
1331 if (NULL != xpsFigure.get()) {
1332 HR(close_figure(segmentTypes, segmentStrokes, segmentData,
1333 stroke, fill,
1334 xpsFigure.get() , xpsFigures));
1335 xpsFigure.reset();
1336 segmentTypes.rewind();
1337 segmentStrokes.rewind();
1338 segmentData.rewind();
1339 }
1340 // Define the start point.
1341 XPS_POINT startPoint = xps_point(points[0]);
1342 // Create the figure.
1343 HRM(this->fXpsFactory->CreateGeometryFigure(&startPoint,
1344 &xpsFigure),
1345 "Could not create path geometry figure.");
1346 break;
1347 }
1348 case SkPath::kLine_Verb:
1349 if (iter.isCloseLine()) break; //ignore the line, auto-closed
1350 segmentTypes.push(XPS_SEGMENT_TYPE_LINE);
1351 segmentStrokes.push(stroke);
1352 segmentData.push(SkScalarToFLOAT(points[1].fX));
1353 segmentData.push(SkScalarToFLOAT(points[1].fY));
1354 break;
1355 case SkPath::kQuad_Verb:
1356 segmentTypes.push(XPS_SEGMENT_TYPE_QUADRATIC_BEZIER);
1357 segmentStrokes.push(stroke);
1358 segmentData.push(SkScalarToFLOAT(points[1].fX));
1359 segmentData.push(SkScalarToFLOAT(points[1].fY));
1360 segmentData.push(SkScalarToFLOAT(points[2].fX));
1361 segmentData.push(SkScalarToFLOAT(points[2].fY));
1362 break;
1363 case SkPath::kCubic_Verb:
1364 segmentTypes.push(XPS_SEGMENT_TYPE_BEZIER);
1365 segmentStrokes.push(stroke);
1366 segmentData.push(SkScalarToFLOAT(points[1].fX));
1367 segmentData.push(SkScalarToFLOAT(points[1].fY));
1368 segmentData.push(SkScalarToFLOAT(points[2].fX));
1369 segmentData.push(SkScalarToFLOAT(points[2].fY));
1370 segmentData.push(SkScalarToFLOAT(points[3].fX));
1371 segmentData.push(SkScalarToFLOAT(points[3].fY));
1372 break;
1373 case SkPath::kClose_Verb:
1374 // we ignore these, and just get the whole segment from
1375 // the corresponding line/quad/cubic verbs
1376 break;
1377 default:
1378 SkDEBUGFAIL("unexpected verb");
1379 break;
1380 }
1381 }
1382 if (NULL != xpsFigure.get()) {
1383 HR(close_figure(segmentTypes, segmentStrokes, segmentData,
1384 stroke, fill,
1385 xpsFigure.get(), xpsFigures));
1386 }
1387 return S_OK;
1388 }
1389
1390 HRESULT SkXPSDevice::drawInverseWindingPath(const SkDraw& d,
1391 const SkPath& devicePath,
1392 IXpsOMPath* shadedPath) {
1393 const SkRect universeRect = SkRect::MakeLTRB(0, 0,
1394 this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight);
1395
1396 const XPS_RECT universeRectXps = {
1397 0.0f, 0.0f,
1398 SkScalarToFLOAT(this->fCurrentCanvasSize.fWidth),
1399 SkScalarToFLOAT(this->fCurrentCanvasSize.fHeight),
1400 };
1401
1402 //Get the geometry.
1403 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1404 HRM(shadedPath->GetGeometry(&shadedGeometry),
1405 "Could not get shaded geometry for inverse path.");
1406
1407 //Get the figures from the geometry.
1408 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1409 HRM(shadedGeometry->GetFigures(&shadedFigures),
1410 "Could not get shaded figures for inverse path.");
1411
1412 HRM(shadedGeometry->SetFillRule(XPS_FILL_RULE_NONZERO),
1413 "Could not set shaded fill rule for inverse path.");
1414
1415 //Take everything drawn so far, and make a shared resource out of it.
1416 //Replace everything drawn so far with
1417 //inverse canvas
1418 // old canvas of everything so far
1419 // world shaded figure, clipped to current clip
1420 // top canvas of everything so far, clipped to path
1421 //Note: this is not quite right when there is nothing solid in the
1422 //canvas of everything so far, as the bit on top will allow
1423 //the world paint to show through.
1424
1425 //Create new canvas.
1426 SkTScopedComPtr<IXpsOMCanvas> newCanvas;
1427 HRM(this->fXpsFactory->CreateCanvas(&newCanvas),
1428 "Could not create inverse canvas.");
1429
1430 //Save the old canvas to a dictionary on the new canvas.
1431 SkTScopedComPtr<IXpsOMDictionary> newDictionary;
1432 HRM(this->fXpsFactory->CreateDictionary(&newDictionary),
1433 "Could not create inverse dictionary.");
1434 HRM(newCanvas->SetDictionaryLocal(newDictionary.get()),
1435 "Could not set inverse dictionary.");
1436
1437 const size_t size = SK_ARRAY_COUNT(L"ID" L_GUID_ID);
1438 wchar_t buffer[size];
1439 wchar_t id[GUID_ID_LEN];
1440 HR(create_id(id, GUID_ID_LEN, '_'));
1441 swprintf_s(buffer, size, L"ID%s", id);
1442 HRM(newDictionary->Append(buffer, this->fCurrentXpsCanvas.get()),
1443 "Could not add canvas to inverse dictionary.");
1444
1445 //Start drawing
1446 SkTScopedComPtr<IXpsOMVisualCollection> newVisuals;
1447 HRM(newCanvas->GetVisuals(&newVisuals),
1448 "Could not get inverse canvas visuals.");
1449
1450 //Draw old canvas from dictionary onto new canvas.
1451 SkTScopedComPtr<IXpsOMGeometry> oldGeometry;
1452 HRM(this->fXpsFactory->CreateGeometry(&oldGeometry),
1453 "Could not create old inverse geometry.");
1454
1455 SkTScopedComPtr<IXpsOMGeometryFigureCollection> oldFigures;
1456 HRM(oldGeometry->GetFigures(&oldFigures),
1457 "Could not get old inverse figures.");
1458
1459 SkTScopedComPtr<IXpsOMGeometryFigure> oldFigure;
1460 HR(this->createXpsRect(universeRect, FALSE, TRUE, &oldFigure));
1461 HRM(oldFigures->Append(oldFigure.get()),
1462 "Could not add old inverse figure.");
1463
1464 SkTScopedComPtr<IXpsOMVisualBrush> oldBrush;
1465 HRM(this->fXpsFactory->CreateVisualBrush(&universeRectXps,
1466 &universeRectXps,
1467 &oldBrush),
1468 "Could not create old inverse brush.");
1469
1470 SkTScopedComPtr<IXpsOMPath> oldPath;
1471 HRM(this->fXpsFactory->CreatePath(&oldPath),
1472 "Could not create old inverse path.");
1473 HRM(oldPath->SetGeometryLocal(oldGeometry.get()),
1474 "Could not set old inverse geometry.");
1475 HRM(oldPath->SetFillBrushLocal(oldBrush.get()),
1476 "Could not set old inverse fill brush.");
1477 //the brush must be parented before setting the lookup.
1478 HRM(newVisuals->Append(oldPath.get()),
1479 "Could not add old inverse path to new canvas visuals.");
1480 HRM(oldBrush->SetVisualLookup(buffer),
1481 "Could not set old inverse brush visual lookup.");
1482
1483 //Draw the clip filling shader.
1484 SkTScopedComPtr<IXpsOMGeometryFigure> shadedFigure;
1485 HR(this->createXpsRect(universeRect, FALSE, TRUE, &shadedFigure));
1486 HRM(shadedFigures->Append(shadedFigure.get()),
1487 "Could not add inverse shaded figure.");
1488 //the geometry is already set
1489 HR(this->clip(shadedPath, d));
1490 HRM(newVisuals->Append(shadedPath),
1491 "Could not add inverse shaded path to canvas visuals.");
1492
1493 //Draw the old canvas on top, clipped to the original path.
1494 SkTScopedComPtr<IXpsOMCanvas> topCanvas;
1495 HRM(this->fXpsFactory->CreateCanvas(&topCanvas),
1496 "Could not create top inverse canvas.");
1497 //Clip the canvas to prevent alpha spill.
1498 //This is the entire reason this canvas exists.
1499 HR(this->clip(topCanvas.get(), d));
1500
1501 SkTScopedComPtr<IXpsOMGeometry> topGeometry;
1502 HRM(this->fXpsFactory->CreateGeometry(&topGeometry),
1503 "Could not create top inverse geometry.");
1504
1505 SkTScopedComPtr<IXpsOMGeometryFigureCollection> topFigures;
1506 HRM(topGeometry->GetFigures(&topFigures),
1507 "Could not get top inverse figures.");
1508
1509 SkTScopedComPtr<IXpsOMGeometryFigure> topFigure;
1510 HR(this->createXpsRect(universeRect, FALSE, TRUE, &topFigure));
1511 HRM(topFigures->Append(topFigure.get()),
1512 "Could not add old inverse figure.");
1513
1514 SkTScopedComPtr<IXpsOMVisualBrush> topBrush;
1515 HRM(this->fXpsFactory->CreateVisualBrush(&universeRectXps,
1516 &universeRectXps,
1517 &topBrush),
1518 "Could not create top inverse brush.");
1519
1520 SkTScopedComPtr<IXpsOMPath> topPath;
1521 HRM(this->fXpsFactory->CreatePath(&topPath),
1522 "Could not create top inverse path.");
1523 HRM(topPath->SetGeometryLocal(topGeometry.get()),
1524 "Could not set top inverse geometry.");
1525 HRM(topPath->SetFillBrushLocal(topBrush.get()),
1526 "Could not set top inverse fill brush.");
1527 //the brush must be parented before setting the lookup.
1528 HRM(newVisuals->Append(topCanvas.get()),
1529 "Could not add top canvas to inverse canvas visuals.");
1530 SkTScopedComPtr<IXpsOMVisualCollection> topVisuals;
1531 HRM(topCanvas->GetVisuals(&topVisuals),
1532 "Could not get top inverse canvas visuals.");
1533 HRM(topVisuals->Append(topPath.get()),
1534 "Could not add top inverse path to top canvas visuals.");
1535 HRM(topBrush->SetVisualLookup(buffer),
1536 "Could not set top inverse brush visual lookup.");
1537
1538 HR(this->clipToPath(topPath.get(), devicePath, XPS_FILL_RULE_NONZERO));
1539
1540 //swap current canvas to new canvas
1541 this->fCurrentXpsCanvas.swap(newCanvas);
1542
1543 return S_OK;
1544 }
1545
1546 void SkXPSDevice::convertToPpm(const SkMaskFilter* filter,
1547 SkMatrix* matrix,
1548 SkVector* ppuScale,
1549 const SkIRect& clip, SkIRect* clipIRect) {
1550 //This action is in unit space, but the ppm is specified in physical space.
1551 ppuScale->fX = SkScalarDiv(this->fCurrentPixelsPerMeter.fX,
1552 this->fCurrentUnitsPerMeter.fX);
1553 ppuScale->fY = SkScalarDiv(this->fCurrentPixelsPerMeter.fY,
1554 this->fCurrentUnitsPerMeter.fY);
1555
1556 matrix->postScale(ppuScale->fX, ppuScale->fY);
1557
1558 const SkIRect& irect = clip;
1559 SkRect clipRect = SkRect::MakeLTRB(
1560 SkScalarMul(SkIntToScalar(irect.fLeft), ppuScale->fX),
1561 SkScalarMul(SkIntToScalar(irect.fTop), ppuScale->fY),
1562 SkScalarMul(SkIntToScalar(irect.fRight), ppuScale->fX),
1563 SkScalarMul(SkIntToScalar(irect.fBottom), ppuScale->fY));
1564 clipRect.roundOut(clipIRect);
1565 }
1566
1567 HRESULT SkXPSDevice::applyMask(const SkDraw& d,
1568 const SkMask& mask,
1569 const SkVector& ppuScale,
1570 IXpsOMPath* shadedPath) {
1571 //Get the geometry object.
1572 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1573 HRM(shadedPath->GetGeometry(&shadedGeometry),
1574 "Could not get mask shaded geometry.");
1575
1576 //Get the figures from the geometry.
1577 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1578 HRM(shadedGeometry->GetFigures(&shadedFigures),
1579 "Could not get mask shaded figures.");
1580
1581 SkMatrix m;
1582 m.reset();
1583 m.setTranslate(SkIntToScalar(mask.fBounds.fLeft),
1584 SkIntToScalar(mask.fBounds.fTop));
1585 m.postScale(SkScalarInvert(ppuScale.fX), SkScalarInvert(ppuScale.fY));
1586
1587 SkShader::TileMode xy[2];
1588 xy[0] = (SkShader::TileMode)3;
1589 xy[1] = (SkShader::TileMode)3;
1590
1591 SkBitmap bm;
1592 bm.setConfig(SkBitmap::kA8_Config,
1593 mask.fBounds.width(),
1594 mask.fBounds.height(),
1595 mask.fRowBytes);
1596 bm.setPixels(mask.fImage);
1597
1598 SkTScopedComPtr<IXpsOMTileBrush> maskBrush;
1599 HR(this->createXpsImageBrush(bm, m, xy, 0xFF, &maskBrush));
1600 HRM(shadedPath->SetOpacityMaskBrushLocal(maskBrush.get()),
1601 "Could not set mask.");
1602
1603 const SkRect universeRect = SkRect::MakeLTRB(0, 0,
1604 this->fCurrentCanvasSize.fWidth, this->fCurrentCanvasSize.fHeight);
1605 SkTScopedComPtr<IXpsOMGeometryFigure> shadedFigure;
1606 HRM(this->createXpsRect(universeRect, FALSE, TRUE, &shadedFigure),
1607 "Could not create mask shaded figure.");
1608 HRM(shadedFigures->Append(shadedFigure.get()),
1609 "Could not add mask shaded figure.");
1610
1611 HR(this->clip(shadedPath, d));
1612
1613 //Add the path to the active visual collection.
1614 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1615 HRM(this->fCurrentXpsCanvas->GetVisuals(&currentVisuals),
1616 "Could not get mask current visuals.");
1617 HRM(currentVisuals->Append(shadedPath),
1618 "Could not add masked shaded path to current visuals.");
1619
1620 return S_OK;
1621 }
1622
1623 HRESULT SkXPSDevice::shadePath(IXpsOMPath* shadedPath,
1624 const SkPaint& shaderPaint,
1625 const SkMatrix& matrix,
1626 BOOL* fill, BOOL* stroke) {
1627 *fill = FALSE;
1628 *stroke = FALSE;
1629
1630 const SkPaint::Style style = shaderPaint.getStyle();
1631 const bool hasFill = SkPaint::kFill_Style == style
1632 || SkPaint::kStrokeAndFill_Style == style;
1633 const bool hasStroke = SkPaint::kStroke_Style == style
1634 || SkPaint::kStrokeAndFill_Style == style;
1635
1636 //TODO(bungeman): use dictionaries and lookups.
1637 if (hasFill) {
1638 *fill = TRUE;
1639 SkTScopedComPtr<IXpsOMBrush> fillBrush;
1640 HR(this->createXpsBrush(shaderPaint, &fillBrush, &matrix));
1641 HRM(shadedPath->SetFillBrushLocal(fillBrush.get()),
1642 "Could not set fill for shaded path.");
1643 }
1644
1645 if (hasStroke) {
1646 *stroke = TRUE;
1647 SkTScopedComPtr<IXpsOMBrush> strokeBrush;
1648 HR(this->createXpsBrush(shaderPaint, &strokeBrush, &matrix));
1649 HRM(shadedPath->SetStrokeBrushLocal(strokeBrush.get()),
1650 "Could not set stroke brush for shaded path.");
1651 HRM(shadedPath->SetStrokeThickness(
1652 SkScalarToFLOAT(shaderPaint.getStrokeWidth())),
1653 "Could not set shaded path stroke thickness.");
1654
1655 if (0 == shaderPaint.getStrokeWidth()) {
1656 //XPS hair width is a hack. (XPS Spec 11.6.12).
1657 SkTScopedComPtr<IXpsOMDashCollection> dashes;
1658 HRM(shadedPath->GetStrokeDashes(&dashes),
1659 "Could not set dashes for shaded path.");
1660 XPS_DASH dash;
1661 dash.length = 1.0;
1662 dash.gap = 0.0;
1663 HRM(dashes->Append(&dash), "Could not add dashes to shaded path.");
1664 HRM(shadedPath->SetStrokeDashOffset(-2.0),
1665 "Could not set dash offset for shaded path.");
1666 }
1667 }
1668 return S_OK;
1669 }
1670
1671 void SkXPSDevice::drawPath(const SkDraw& d,
1672 const SkPath& platonicPath,
1673 const SkPaint& origPaint,
1674 const SkMatrix* prePathMatrix,
1675 bool pathIsMutable) {
1676 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
1677
1678 // nothing to draw
1679 if (d.fClip->isEmpty() ||
1680 (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) {
1681 return;
1682 }
1683
1684 SkPath modifiedPath;
1685 const bool paintHasPathEffect = paint->getPathEffect()
1686 || paint->getStyle() != SkPaint::kFill_Style;
1687
1688 //Apply pre-path matrix [Platonic-path -> Skeletal-path].
1689 SkMatrix matrix = *d.fMatrix;
1690 SkPath* skeletalPath = const_cast<SkPath*>(&platonicPath);
1691 if (prePathMatrix) {
1692 if (paintHasPathEffect || paint->getRasterizer()) {
1693 if (!pathIsMutable) {
1694 skeletalPath = &modifiedPath;
1695 pathIsMutable = true;
1696 }
1697 platonicPath.transform(*prePathMatrix, skeletalPath);
1698 } else {
1699 if (!matrix.preConcat(*prePathMatrix)) {
1700 return;
1701 }
1702 }
1703 }
1704
1705 //Apply path effect [Skeletal-path -> Fillable-path].
1706 SkPath* fillablePath = skeletalPath;
1707 if (paintHasPathEffect) {
1708 if (!pathIsMutable) {
1709 fillablePath = &modifiedPath;
1710 pathIsMutable = true;
1711 }
1712 bool fill = paint->getFillPath(*skeletalPath, fillablePath);
1713
1714 SkPaint* writablePaint = paint.writable();
1715 writablePaint->setPathEffect(NULL);
1716 if (fill) {
1717 writablePaint->setStyle(SkPaint::kFill_Style);
1718 } else {
1719 writablePaint->setStyle(SkPaint::kStroke_Style);
1720 writablePaint->setStrokeWidth(0);
1721 }
1722 }
1723
1724 //Create the shaded path. This will be the path which is painted.
1725 SkTScopedComPtr<IXpsOMPath> shadedPath;
1726 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1727 "Could not create shaded path for path.");
1728
1729 //Create the geometry for the shaded path.
1730 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1731 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1732 "Could not create shaded geometry for path.");
1733
1734 //Add the geometry to the shaded path.
1735 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1736 "Could not add the shaded geometry to shaded path.");
1737
1738 SkRasterizer* rasterizer = paint->getRasterizer();
1739 SkMaskFilter* filter = paint->getMaskFilter();
1740
1741 //Determine if we will draw or shade and mask.
1742 if (rasterizer || filter) {
1743 if (paint->getStyle() != SkPaint::kFill_Style) {
1744 paint.writable()->setStyle(SkPaint::kFill_Style);
1745 }
1746 }
1747
1748 //Set the brushes.
1749 BOOL fill;
1750 BOOL stroke;
1751 HRV(this->shadePath(shadedPath.get(),
1752 *paint,
1753 *d.fMatrix,
1754 &fill,
1755 &stroke));
1756
1757 //Rasterizer
1758 if (rasterizer) {
1759 SkIRect clipIRect;
1760 SkVector ppuScale;
1761 this->convertToPpm(filter,
1762 &matrix,
1763 &ppuScale,
1764 d.fClip->getBounds(),
1765 &clipIRect);
1766
1767 SkMask* mask = NULL;
1768
1769 //[Fillable-path -> Mask]
1770 SkMask rasteredMask;
1771 if (rasterizer->rasterize(
1772 *fillablePath,
1773 matrix,
1774 &clipIRect,
1775 filter, //just to compute how much to draw.
1776 &rasteredMask,
1777 SkMask::kComputeBoundsAndRenderImage_CreateMode)) {
1778
1779 SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage);
1780 mask = &rasteredMask;
1781
1782 //[Mask -> Mask]
1783 SkMask filteredMask;
1784 if (filter &&
1785 filter->filterMask(&filteredMask, *mask, *d.fMatrix, NULL)) {
1786
1787 mask = &filteredMask;
1788 } else {
1789 filteredMask.fImage = NULL;
1790 }
1791 SkAutoMaskFreeImage filteredAmi(filteredMask.fImage);
1792
1793 //Draw mask.
1794 HRV(this->applyMask(d, *mask, ppuScale, shadedPath.get()));
1795 }
1796 return;
1797 }
1798
1799 //Mask filter
1800 if (filter) {
1801 SkIRect clipIRect;
1802 SkVector ppuScale;
1803 this->convertToPpm(filter,
1804 &matrix,
1805 &ppuScale,
1806 d.fClip->getBounds(),
1807 &clipIRect);
1808
1809 //[Fillable-path -> Pixel-path]
1810 SkPath* pixelPath = pathIsMutable ? fillablePath : &modifiedPath;
1811 fillablePath->transform(matrix, pixelPath);
1812
1813 SkMask* mask = NULL;
1814
1815 //[Pixel-path -> Mask]
1816 SkMask rasteredMask;
1817 if (SkDraw::DrawToMask(
1818 *pixelPath,
1819 &clipIRect,
1820 filter, //just to compute how much to draw.
1821 &matrix,
1822 &rasteredMask,
1823 SkMask::kComputeBoundsAndRenderImage_CreateMode,
1824 paint->getStyle())) {
1825
1826 SkAutoMaskFreeImage rasteredAmi(rasteredMask.fImage);
1827 mask = &rasteredMask;
1828
1829 //[Mask -> Mask]
1830 SkMask filteredMask;
1831 if (filter->filterMask(&filteredMask,
1832 rasteredMask,
1833 matrix,
1834 NULL)) {
1835 mask = &filteredMask;
1836 } else {
1837 filteredMask.fImage = NULL;
1838 }
1839 SkAutoMaskFreeImage filteredAmi(filteredMask.fImage);
1840
1841 //Draw mask.
1842 HRV(this->applyMask(d, *mask, ppuScale, shadedPath.get()));
1843 }
1844 return;
1845 }
1846
1847 //Get the figures from the shaded geometry.
1848 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1849 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1850 "Could not get shaded figures for shaded path.");
1851
1852 bool xpsTransformsPath = true;
1853
1854 //Set the fill rule.
1855 XPS_FILL_RULE xpsFillRule;
1856 switch (platonicPath.getFillType()) {
1857 case SkPath::kWinding_FillType:
1858 xpsFillRule = XPS_FILL_RULE_NONZERO;
1859 break;
1860 case SkPath::kEvenOdd_FillType:
1861 xpsFillRule = XPS_FILL_RULE_EVENODD;
1862 break;
1863 case SkPath::kInverseWinding_FillType: {
1864 //[Fillable-path -> Device-path]
1865 SkPath* devicePath = pathIsMutable ? fillablePath : &modifiedPath;
1866 fillablePath->transform(matrix, devicePath);
1867
1868 HRV(this->drawInverseWindingPath(d,
1869 *devicePath,
1870 shadedPath.get()));
1871 return;
1872 }
1873 case SkPath::kInverseEvenOdd_FillType: {
1874 const SkRect universe = SkRect::MakeLTRB(
1875 0, 0,
1876 this->fCurrentCanvasSize.fWidth,
1877 this->fCurrentCanvasSize.fHeight);
1878 SkTScopedComPtr<IXpsOMGeometryFigure> addOneFigure;
1879 HRV(this->createXpsRect(universe, FALSE, TRUE, &addOneFigure));
1880 HRVM(shadedFigures->Append(addOneFigure.get()),
1881 "Could not add even-odd flip figure to shaded path.");
1882 xpsTransformsPath = false;
1883 xpsFillRule = XPS_FILL_RULE_EVENODD;
1884 break;
1885 }
1886 default:
1887 SkDEBUGFAIL("Unknown SkPath::FillType.");
1888 }
1889 HRVM(shadedGeometry->SetFillRule(xpsFillRule),
1890 "Could not set fill rule for shaded path.");
1891
1892 //Create the XPS transform, if possible.
1893 if (xpsTransformsPath) {
1894 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1895 HRV(this->createXpsTransform(matrix, &xpsTransform));
1896
1897 if (xpsTransform.get()) {
1898 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1899 "Could not set transform on shaded path.");
1900 } else {
1901 xpsTransformsPath = false;
1902 }
1903 }
1904
1905 SkPath* devicePath = fillablePath;
1906 if (!xpsTransformsPath) {
1907 //[Fillable-path -> Device-path]
1908 devicePath = pathIsMutable ? fillablePath : &modifiedPath;
1909 fillablePath->transform(matrix, devicePath);
1910 }
1911 HRV(this->addXpsPathGeometry(shadedFigures.get(),
1912 stroke, fill, *devicePath));
1913
1914 HRV(this->clip(shadedPath.get(), d));
1915
1916 //Add the path to the active visual collection.
1917 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
1918 HRVM(this->fCurrentXpsCanvas->GetVisuals(&currentVisuals),
1919 "Could not get current visuals for shaded path.");
1920 HRVM(currentVisuals->Append(shadedPath.get()),
1921 "Could not add shaded path to current visuals.");
1922 }
1923
1924 HRESULT SkXPSDevice::clip(IXpsOMVisual* xpsVisual, const SkDraw& d) {
1925 SkPath clipPath;
1926 SkAssertResult(d.fClip->getBoundaryPath(&clipPath));
1927
1928 return this->clipToPath(xpsVisual, clipPath, XPS_FILL_RULE_EVENODD);
1929 }
1930 HRESULT SkXPSDevice::clipToPath(IXpsOMVisual* xpsVisual,
1931 const SkPath& clipPath,
1932 XPS_FILL_RULE fillRule) {
1933 //Create the geometry.
1934 SkTScopedComPtr<IXpsOMGeometry> clipGeometry;
1935 HRM(this->fXpsFactory->CreateGeometry(&clipGeometry),
1936 "Could not create clip geometry.");
1937
1938 //Get the figure collection of the geometry.
1939 SkTScopedComPtr<IXpsOMGeometryFigureCollection> clipFigures;
1940 HRM(clipGeometry->GetFigures(&clipFigures),
1941 "Could not get the clip figures.");
1942
1943 //Create the figures into the geometry.
1944 HR(this->addXpsPathGeometry(
1945 clipFigures.get(),
1946 FALSE, TRUE, clipPath));
1947
1948 HRM(clipGeometry->SetFillRule(fillRule),
1949 "Could not set fill rule.");
1950 HRM(xpsVisual->SetClipGeometryLocal(clipGeometry.get()),
1951 "Could not set clip geometry.");
1952
1953 return S_OK;
1954 }
1955
1956 void SkXPSDevice::drawBitmap(const SkDraw& d, const SkBitmap& bitmap,
1957 const SkMatrix& matrix, const SkPaint& paint) {
1958 if (d.fClip->isEmpty()) {
1959 return;
1960 }
1961
1962 SkIRect srcRect;
1963 srcRect.set(0, 0, bitmap.width(), bitmap.height());
1964
1965 //Create the new shaded path.
1966 SkTScopedComPtr<IXpsOMPath> shadedPath;
1967 HRVM(this->fXpsFactory->CreatePath(&shadedPath),
1968 "Could not create path for bitmap.");
1969
1970 //Create the shaded geometry.
1971 SkTScopedComPtr<IXpsOMGeometry> shadedGeometry;
1972 HRVM(this->fXpsFactory->CreateGeometry(&shadedGeometry),
1973 "Could not create geometry for bitmap.");
1974
1975 //Add the shaded geometry to the shaded path.
1976 HRVM(shadedPath->SetGeometryLocal(shadedGeometry.get()),
1977 "Could not set the geometry for bitmap.");
1978
1979 //Get the shaded figures from the shaded geometry.
1980 SkTScopedComPtr<IXpsOMGeometryFigureCollection> shadedFigures;
1981 HRVM(shadedGeometry->GetFigures(&shadedFigures),
1982 "Could not get the figures for bitmap.");
1983
1984 SkMatrix transform = matrix;
1985 transform.postConcat(*d.fMatrix);
1986
1987 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
1988 HRV(this->createXpsTransform(transform, &xpsTransform));
1989 if (xpsTransform.get()) {
1990 HRVM(shadedGeometry->SetTransformLocal(xpsTransform.get()),
1991 "Could not set transform for bitmap.");
1992 } else {
1993 //TODO: perspective that bitmap!
1994 }
1995
1996 SkTScopedComPtr<IXpsOMGeometryFigure> rectFigure;
1997 if (NULL != xpsTransform.get()) {
1998 const SkShader::TileMode xy[2] = {
1999 SkShader::kClamp_TileMode,
2000 SkShader::kClamp_TileMode,
2001 };
2002 SkTScopedComPtr<IXpsOMTileBrush> xpsImageBrush;
2003 HRV(this->createXpsImageBrush(bitmap,
2004 transform,
2005 xy,
2006 paint.getAlpha(),
2007 &xpsImageBrush));
2008 HRVM(shadedPath->SetFillBrushLocal(xpsImageBrush.get()),
2009 "Could not set bitmap brush.");
2010
2011 const SkRect bitmapRect = SkRect::MakeLTRB(0, 0,
2012 SkIntToScalar(srcRect.width()), SkIntToScalar(srcRect.height()));
2013 HRV(this->createXpsRect(bitmapRect, FALSE, TRUE, &rectFigure));
2014 }
2015 HRVM(shadedFigures->Append(rectFigure.get()),
2016 "Could not add bitmap figure.");
2017
2018 //Get the current visual collection and add the shaded path to it.
2019 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
2020 HRVM(this->fCurrentXpsCanvas->GetVisuals(&currentVisuals),
2021 "Could not get current visuals for bitmap");
2022 HRVM(currentVisuals->Append(shadedPath.get()),
2023 "Could not add bitmap to current visuals.");
2024
2025 HRV(this->clip(shadedPath.get(), d));
2026 }
2027
2028 void SkXPSDevice::drawSprite(const SkDraw&, const SkBitmap& bitmap,
2029 int x, int y,
2030 const SkPaint& paint) {
2031 //TODO: override this for XPS
2032 SkDEBUGF(("XPS drawSprite not yet implemented."));
2033 }
2034
2035 HRESULT SkXPSDevice::CreateTypefaceUse(const SkPaint& paint,
2036 TypefaceUse** typefaceUse) {
2037 SkAutoResolveDefaultTypeface typeface(paint.getTypeface());
2038
2039 //Check cache.
2040 const SkFontID typefaceID = typeface->uniqueID();
2041 if (!this->fTypefaces.empty()) {
2042 TypefaceUse* current = &this->fTypefaces.front();
2043 const TypefaceUse* last = &this->fTypefaces.back();
2044 for (; current <= last; ++current) {
2045 if (current->typefaceId == typefaceID) {
2046 *typefaceUse = current;
2047 return S_OK;
2048 }
2049 }
2050 }
2051
2052 //TODO: create glyph only fonts
2053 //and let the host deal with what kind of font we're looking at.
2054 XPS_FONT_EMBEDDING embedding = XPS_FONT_EMBEDDING_RESTRICTED;
2055
2056 SkTScopedComPtr<IStream> fontStream;
2057 int ttcIndex;
2058 SkStream* fontData = typeface->openStream(&ttcIndex);
2059 //TODO: cannot handle FON fonts.
2060 HRM(SkIStream::CreateFromSkStream(fontData, true, &fontStream),
2061 "Could not create font stream.");
2062
2063 const size_t size =
2064 SK_ARRAY_COUNT(L"/Resources/Fonts/" L_GUID_ID L".odttf");
2065 wchar_t buffer[size];
2066 wchar_t id[GUID_ID_LEN];
2067 HR(create_id(id, GUID_ID_LEN));
2068 swprintf_s(buffer, size, L"/Resources/Fonts/%s.odttf", id);
2069
2070 SkTScopedComPtr<IOpcPartUri> partUri;
2071 HRM(this->fXpsFactory->CreatePartUri(buffer, &partUri),
2072 "Could not create font resource part uri.");
2073
2074 SkTScopedComPtr<IXpsOMFontResource> xpsFontResource;
2075 HRM(this->fXpsFactory->CreateFontResource(fontStream.get(),
2076 embedding,
2077 partUri.get(),
2078 FALSE,
2079 &xpsFontResource),
2080 "Could not create font resource.");
2081
2082 //TODO: change openStream to return -1 for non-ttc, get rid of this.
2083 uint8_t* data = (uint8_t*)fontData->getMemoryBase();
2084 bool isTTC = (data &&
2085 fontData->getLength() >= sizeof(SkTTCFHeader) &&
2086 ((SkTTCFHeader*)data)->ttcTag == SkTTCFHeader::TAG);
2087
2088 TypefaceUse& newTypefaceUse = this->fTypefaces.push_back();
2089 newTypefaceUse.typefaceId = typefaceID;
2090 newTypefaceUse.ttcIndex = isTTC ? ttcIndex : -1;
2091 newTypefaceUse.fontData = fontData;
2092 newTypefaceUse.xpsFont = xpsFontResource.release();
2093
2094 SkAutoGlyphCache agc(paint, NULL, &SkMatrix::I());
2095 SkGlyphCache* glyphCache = agc.getCache();
2096 unsigned int glyphCount = glyphCache->getGlyphCount();
2097 newTypefaceUse.glyphsUsed = new SkBitSet(glyphCount);
2098
2099 *typefaceUse = &newTypefaceUse;
2100 return S_OK;
2101 }
2102
2103 HRESULT SkXPSDevice::AddGlyphs(const SkDraw& d,
2104 IXpsOMObjectFactory* xpsFactory,
2105 IXpsOMCanvas* canvas,
2106 TypefaceUse* font,
2107 LPCWSTR text,
2108 XPS_GLYPH_INDEX* xpsGlyphs,
2109 UINT32 xpsGlyphsLen,
2110 XPS_POINT *origin,
2111 FLOAT fontSize,
2112 XPS_STYLE_SIMULATION sims,
2113 const SkMatrix& transform,
2114 const SkPaint& paint) {
2115 SkTScopedComPtr<IXpsOMGlyphs> glyphs;
2116 HRM(xpsFactory->CreateGlyphs(font->xpsFont, &glyphs), "Could not create glyphs.");
2117 HRM(glyphs->SetFontFaceIndex(font->ttcIndex), "Could not set glyph font face index.");
2118
2119 //XPS uses affine transformations for everything...
2120 //...except positioning text.
2121 bool useCanvasForClip;
2122 if ((transform.getType() & ~SkMatrix::kTranslate_Mask) == 0) {
2123 origin->x += SkScalarToFLOAT(transform.getTranslateX());
2124 origin->y += SkScalarToFLOAT(transform.getTranslateY());
2125 useCanvasForClip = false;
2126 } else {
2127 SkTScopedComPtr<IXpsOMMatrixTransform> xpsMatrixToUse;
2128 HR(this->createXpsTransform(transform, &xpsMatrixToUse));
2129 if (xpsMatrixToUse.get()) {
2130 HRM(glyphs->SetTransformLocal(xpsMatrixToUse.get()),
2131 "Could not set transform matrix.");
2132 useCanvasForClip = true;
2133 } else {
2134 SkDEBUGFAIL("Attempt to add glyphs in perspective.");
2135 useCanvasForClip = false;
2136 }
2137 }
2138
2139 SkTScopedComPtr<IXpsOMGlyphsEditor> glyphsEditor;
2140 HRM(glyphs->GetGlyphsEditor(&glyphsEditor), "Could not get glyph editor.");
2141
2142 if (NULL != text) {
2143 HRM(glyphsEditor->SetUnicodeString(text),
2144 "Could not set unicode string.");
2145 }
2146
2147 if (NULL != xpsGlyphs) {
2148 HRM(glyphsEditor->SetGlyphIndices(xpsGlyphsLen, xpsGlyphs),
2149 "Could not set glyphs.");
2150 }
2151
2152 HRM(glyphsEditor->ApplyEdits(), "Could not apply glyph edits.");
2153
2154 SkTScopedComPtr<IXpsOMBrush> xpsFillBrush;
2155 HR(this->createXpsBrush(
2156 paint,
2157 &xpsFillBrush,
2158 useCanvasForClip ? NULL : &transform));
2159
2160 HRM(glyphs->SetFillBrushLocal(xpsFillBrush.get()),
2161 "Could not set fill brush.");
2162
2163 HRM(glyphs->SetOrigin(origin), "Could not set glyph origin.");
2164
2165 HRM(glyphs->SetFontRenderingEmSize(fontSize),
2166 "Could not set font size.");
2167
2168 HRM(glyphs->SetStyleSimulations(sims),
2169 "Could not set style simulations.");
2170
2171 SkTScopedComPtr<IXpsOMVisualCollection> visuals;
2172 HRM(canvas->GetVisuals(&visuals), "Could not get glyph canvas visuals.");
2173
2174 if (!useCanvasForClip) {
2175 HR(this->clip(glyphs.get(), d));
2176 HRM(visuals->Append(glyphs.get()), "Could not add glyphs to canvas.");
2177 } else {
2178 SkTScopedComPtr<IXpsOMCanvas> glyphCanvas;
2179 HRM(this->fXpsFactory->CreateCanvas(&glyphCanvas),
2180 "Could not create glyph canvas.");
2181
2182 SkTScopedComPtr<IXpsOMVisualCollection> glyphCanvasVisuals;
2183 HRM(glyphCanvas->GetVisuals(&glyphCanvasVisuals),
2184 "Could not get glyph visuals collection.");
2185
2186 HRM(glyphCanvasVisuals->Append(glyphs.get()),
2187 "Could not add glyphs to page.");
2188 HR(this->clip(glyphCanvas.get(), d));
2189
2190 HRM(visuals->Append(glyphCanvas.get()),
2191 "Could not add glyph canvas to page.");
2192 }
2193
2194 return S_OK;
2195 }
2196
2197 struct SkXPSDrawProcs : public SkDrawProcs {
2198 public:
2199 /** [in] Advance width and offsets for glyphs measured in
2200 hundredths of the font em size (XPS Spec 5.1.3). */
2201 FLOAT centemPerUnit;
2202 /** [in,out] The accumulated glyphs used in the current typeface. */
2203 SkBitSet* glyphUse;
2204 /** [out] The glyphs to draw. */
2205 SkTDArray<XPS_GLYPH_INDEX> xpsGlyphs;
2206 };
2207
2208 static void xps_draw_1_glyph(const SkDraw1Glyph& state,
2209 SkFixed x, SkFixed y,
2210 const SkGlyph& skGlyph) {
2211 SkASSERT(skGlyph.fWidth > 0 && skGlyph.fHeight > 0);
2212
2213 SkXPSDrawProcs* procs = static_cast<SkXPSDrawProcs*>(state.fDraw->fProcs);
2214
2215 //Draw pre-adds half the sampling frequency for floor rounding.
2216 x -= state.fHalfSampleX;
2217 y -= state.fHalfSampleY;
2218
2219 XPS_GLYPH_INDEX* xpsGlyph = procs->xpsGlyphs.append();
2220 uint16_t glyphID = skGlyph.getGlyphID();
2221 procs->glyphUse->setBit(glyphID, true);
2222 xpsGlyph->index = glyphID;
2223 if (1 == procs->xpsGlyphs.count()) {
2224 xpsGlyph->advanceWidth = 0.0f;
2225 xpsGlyph->horizontalOffset = SkFixedToFloat(x) * procs->centemPerUnit;
2226 xpsGlyph->verticalOffset = SkFixedToFloat(y) * -procs->centemPerUnit;
2227 } else {
2228 const XPS_GLYPH_INDEX& first = procs->xpsGlyphs[0];
2229 xpsGlyph->advanceWidth = 0.0f;
2230 xpsGlyph->horizontalOffset = (SkFixedToFloat(x) * procs->centemPerUnit)
2231 - first.horizontalOffset;
2232 xpsGlyph->verticalOffset = (SkFixedToFloat(y) * -procs->centemPerUnit)
2233 - first.verticalOffset;
2234 }
2235 }
2236
2237 static void text_draw_init(const SkPaint& paint,
2238 const void* text, size_t byteLength,
2239 SkBitSet& glyphsUsed,
2240 SkDraw& myDraw, SkXPSDrawProcs& procs) {
2241 procs.fD1GProc = xps_draw_1_glyph;
2242 size_t numGlyphGuess;
2243 switch (paint.getTextEncoding()) {
2244 case SkPaint::kUTF8_TextEncoding:
2245 numGlyphGuess = SkUTF8_CountUnichars(
2246 static_cast<const char *>(text),
2247 byteLength);
2248 break;
2249 case SkPaint::kUTF16_TextEncoding:
2250 numGlyphGuess = SkUTF16_CountUnichars(
2251 static_cast<const uint16_t *>(text),
2252 byteLength);
2253 break;
2254 case SkPaint::kGlyphID_TextEncoding:
2255 numGlyphGuess = byteLength / 2;
2256 break;
2257 default:
2258 SK_DEBUGBREAK(true);
2259 }
2260 procs.xpsGlyphs.setReserve(numGlyphGuess);
2261 procs.glyphUse = &glyphsUsed;
2262 procs.centemPerUnit = 100.0f / SkScalarToFLOAT(paint.getTextSize());
2263
2264 myDraw.fProcs = &procs;
2265 }
2266
2267 static bool text_must_be_pathed(const SkPaint& paint, const SkMatrix& matrix) {
2268 const SkPaint::Style style = paint.getStyle();
2269 return matrix.hasPerspective()
2270 || SkPaint::kStroke_Style == style
2271 || SkPaint::kStrokeAndFill_Style == style
2272 || paint.getMaskFilter()
2273 || paint.getRasterizer()
2274 ;
2275 }
2276
2277 void SkXPSDevice::drawText(const SkDraw& d,
2278 const void* text, size_t byteLen,
2279 SkScalar x, SkScalar y,
2280 const SkPaint& paint) {
2281 if (byteLen < 1) return;
2282
2283 if (text_must_be_pathed(paint, *d.fMatrix)) {
2284 SkPath path;
2285 paint.getTextPath(text, byteLen, x, y, &path);
2286 this->drawPath(d, path, paint, NULL, true);
2287 //TODO: add automation "text"
2288 return;
2289 }
2290
2291 TypefaceUse* typeface;
2292 HRV(CreateTypefaceUse(paint, &typeface));
2293
2294 SkDraw myDraw(d);
2295 myDraw.fMatrix = &SkMatrix::I();
2296 SkXPSDrawProcs procs;
2297 text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs);
2298
2299 myDraw.drawText(static_cast<const char*>(text), byteLen, x, y, paint);
2300
2301 // SkDraw may have clipped out the glyphs, so we need to check
2302 if (procs.xpsGlyphs.count() == 0) {
2303 return;
2304 }
2305
2306 XPS_POINT origin = {
2307 procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit,
2308 procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit,
2309 };
2310 procs.xpsGlyphs[0].horizontalOffset = 0.0f;
2311 procs.xpsGlyphs[0].verticalOffset = 0.0f;
2312
2313 HRV(AddGlyphs(d,
2314 this->fXpsFactory.get(),
2315 this->fCurrentXpsCanvas.get(),
2316 typeface,
2317 NULL,
2318 procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(),
2319 &origin,
2320 SkScalarToFLOAT(paint.getTextSize()),
2321 XPS_STYLE_SIMULATION_NONE,
2322 *d.fMatrix,
2323 paint));
2324 }
2325
2326 void SkXPSDevice::drawPosText(const SkDraw& d,
2327 const void* text, size_t byteLen,
2328 const SkScalar pos[],
2329 SkScalar constY, int scalarsPerPos,
2330 const SkPaint& paint) {
2331 if (byteLen < 1) return;
2332
2333 if (text_must_be_pathed(paint, *d.fMatrix)) {
2334 SkPath path;
2335 //TODO: make this work, Draw currently does not handle as well.
2336 //paint.getTextPath(text, byteLength, x, y, &path);
2337 //this->drawPath(d, path, paint, NULL, true);
2338 //TODO: add automation "text"
2339 return;
2340 }
2341
2342 TypefaceUse* typeface;
2343 HRV(CreateTypefaceUse(paint, &typeface));
2344
2345 SkDraw myDraw(d);
2346 myDraw.fMatrix = &SkMatrix::I();
2347 SkXPSDrawProcs procs;
2348 text_draw_init(paint, text, byteLen, *typeface->glyphsUsed, myDraw, procs);
2349
2350 myDraw.drawPosText(static_cast<const char*>(text), byteLen,
2351 pos, constY, scalarsPerPos,
2352 paint);
2353
2354 // SkDraw may have clipped out the glyphs, so we need to check
2355 if (procs.xpsGlyphs.count() == 0) {
2356 return;
2357 }
2358
2359 XPS_POINT origin = {
2360 procs.xpsGlyphs[0].horizontalOffset / procs.centemPerUnit,
2361 procs.xpsGlyphs[0].verticalOffset / -procs.centemPerUnit,
2362 };
2363 procs.xpsGlyphs[0].horizontalOffset = 0.0f;
2364 procs.xpsGlyphs[0].verticalOffset = 0.0f;
2365
2366 HRV(AddGlyphs(d,
2367 this->fXpsFactory.get(),
2368 this->fCurrentXpsCanvas.get(),
2369 typeface,
2370 NULL,
2371 procs.xpsGlyphs.begin(), procs.xpsGlyphs.count(),
2372 &origin,
2373 SkScalarToFLOAT(paint.getTextSize()),
2374 XPS_STYLE_SIMULATION_NONE,
2375 *d.fMatrix,
2376 paint));
2377 }
2378
2379 void SkXPSDevice::drawTextOnPath(const SkDraw& d, const void* text, size_t len,
2380 const SkPath& path, const SkMatrix* matrix,
2381 const SkPaint& paint) {
2382 //This will call back into the device to do the drawing.
2383 d.drawTextOnPath((const char*)text, len, path, matrix, paint);
2384 }
2385
2386 void SkXPSDevice::drawDevice(const SkDraw& d, SkBaseDevice* dev,
2387 int x, int y,
2388 const SkPaint&) {
2389 SkXPSDevice* that = static_cast<SkXPSDevice*>(dev);
2390
2391 SkTScopedComPtr<IXpsOMMatrixTransform> xpsTransform;
2392 XPS_MATRIX rawTransform = {
2393 1.0f,
2394 0.0f,
2395 0.0f,
2396 1.0f,
2397 static_cast<FLOAT>(x),
2398 static_cast<FLOAT>(y),
2399 };
2400 HRVM(this->fXpsFactory->CreateMatrixTransform(&rawTransform, &xpsTransform),
2401 "Could not create layer transform.");
2402 HRVM(that->fCurrentXpsCanvas->SetTransformLocal(xpsTransform.get()),
2403 "Could not set layer transform.");
2404
2405 //Get the current visual collection and add the layer to it.
2406 SkTScopedComPtr<IXpsOMVisualCollection> currentVisuals;
2407 HRVM(this->fCurrentXpsCanvas->GetVisuals(&currentVisuals),
2408 "Could not get current visuals for layer.");
2409 HRVM(currentVisuals->Append(that->fCurrentXpsCanvas.get()),
2410 "Could not add layer to current visuals.");
2411 }
2412
2413 bool SkXPSDevice::onReadPixels(const SkBitmap& bitmap, int x, int y,
2414 SkCanvas::Config8888) {
2415 return false;
2416 }
2417
2418 SkBaseDevice* SkXPSDevice::onCreateDevice(const SkImageInfo&, Usage) {
2419 //Conditional for bug compatibility with PDF device.
2420 #if 0
2421 if (SkBaseDevice::kGeneral_Usage == usage) {
2422 return NULL;
2423 SK_CRASH();
2424 //To what stream do we write?
2425 //SkXPSDevice* dev = new SkXPSDevice(this);
2426 //SkSize s = SkSize::Make(width, height);
2427 //dev->BeginCanvas(s, s, SkMatrix::I());
2428 //return dev;
2429 }
2430 #endif
2431 return new SkXPSDevice(this->fXpsFactory.get());
2432 }
2433
2434 SkXPSDevice::SkXPSDevice(IXpsOMObjectFactory* xpsFactory)
2435 : SkBitmapDevice(make_fake_bitmap(10000, 10000))
2436 , fCurrentPage(0) {
2437
2438 HRVM(CoCreateInstance(
2439 CLSID_XpsOMObjectFactory,
2440 NULL,
2441 CLSCTX_INPROC_SERVER,
2442 IID_PPV_ARGS(&this->fXpsFactory)),
2443 "Could not create factory for layer.");
2444
2445 HRVM(this->fXpsFactory->CreateCanvas(&this->fCurrentXpsCanvas),
2446 "Could not create canvas for layer.");
2447 }
2448
2449 bool SkXPSDevice::allowImageFilter(const SkImageFilter*) {
2450 return false;
2451 }

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