1/*
2 * Copyright 2013 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 "include/core/SkImageFilter.h"
9#include "include/core/SkMatrix.h"
10#include "include/core/SkPaint.h"
11#include "include/core/SkPath.h"
12#include "include/core/SkPixmap.h"
13#include "include/core/SkRasterHandleAllocator.h"
14#include "include/core/SkShader.h"
15#include "include/core/SkSurface.h"
16#include "include/core/SkVertices.h"
17#include "src/core/SkBitmapDevice.h"
18#include "src/core/SkDraw.h"
19#include "src/core/SkGlyphRun.h"
20#include "src/core/SkImageFilterCache.h"
21#include "src/core/SkImageFilter_Base.h"
22#include "src/core/SkRasterClip.h"
23#include "src/core/SkSpecialImage.h"
24#include "src/core/SkStrikeCache.h"
25#include "src/core/SkTLazy.h"
26#include "src/image/SkImage_Base.h"
27
28struct Bounder {
29 SkRect fBounds;
30 bool fHasBounds;
31
32 Bounder(const SkRect& r, const SkPaint& paint) {
33 if ((fHasBounds = paint.canComputeFastBounds())) {
34 fBounds = paint.computeFastBounds(r, &fBounds);
35 }
36 }
37
38 bool hasBounds() const { return fHasBounds; }
39 const SkRect* bounds() const { return fHasBounds ? &fBounds : nullptr; }
40 operator const SkRect* () const { return this->bounds(); }
41};
42
43class SkDrawTiler {
44 enum {
45 // 8K is 1 too big, since 8K << supersample == 32768 which is too big for SkFixed
46 kMaxDim = 8192 - 1
47 };
48
49 SkBitmapDevice* fDevice;
50 SkPixmap fRootPixmap;
51 SkIRect fSrcBounds;
52
53 // Used for tiling and non-tiling
54 SkDraw fDraw;
55
56 // fCurr... are only used if fNeedTiling
57 SkTLazy<SkPostTranslateMatrixProvider> fTileMatrixProvider;
58 SkRasterClip fTileRC;
59 SkIPoint fOrigin;
60
61 bool fDone, fNeedsTiling;
62
63public:
64 static bool NeedsTiling(SkBitmapDevice* dev) {
65 return dev->width() > kMaxDim || dev->height() > kMaxDim;
66 }
67
68 SkDrawTiler(SkBitmapDevice* dev, const SkRect* bounds) : fDevice(dev) {
69 fDone = false;
70
71 // we need fDst to be set, and if we're actually drawing, to dirty the genID
72 if (!dev->accessPixels(&fRootPixmap)) {
73 // NoDrawDevice uses us (why?) so we have to catch this case w/ no pixels
74 fRootPixmap.reset(dev->imageInfo(), nullptr, 0);
75 }
76
77 // do a quick check, so we don't even have to process "bounds" if there is no need
78 const SkIRect clipR = dev->fRCStack.rc().getBounds();
79 fNeedsTiling = clipR.right() > kMaxDim || clipR.bottom() > kMaxDim;
80 if (fNeedsTiling) {
81 if (bounds) {
82 // Make sure we round first, and then intersect. We can't rely on promoting the
83 // clipR to floats (and then intersecting with devBounds) since promoting
84 // int --> float can make the float larger than the int.
85 // rounding(out) first runs the risk of clamping if the float is larger an intmax
86 // but our roundOut() is saturating, which is fine for this use case
87 //
88 // e.g. the older version of this code did this:
89 // devBounds = mapRect(bounds);
90 // if (devBounds.intersect(SkRect::Make(clipR))) {
91 // fSrcBounds = devBounds.roundOut();
92 // The problem being that the promotion of clipR to SkRect was unreliable
93 //
94 fSrcBounds = dev->localToDevice().mapRect(*bounds).roundOut();
95 if (fSrcBounds.intersect(clipR)) {
96 // Check again, now that we have computed srcbounds.
97 fNeedsTiling = fSrcBounds.right() > kMaxDim || fSrcBounds.bottom() > kMaxDim;
98 } else {
99 fNeedsTiling = false;
100 fDone = true;
101 }
102 } else {
103 fSrcBounds = clipR;
104 }
105 }
106
107 if (fNeedsTiling) {
108 // fDraw.fDst and fMatrixProvider are reset each time in setupTileDraw()
109 fDraw.fRC = &fTileRC;
110 // we'll step/increase it before using it
111 fOrigin.set(fSrcBounds.fLeft - kMaxDim, fSrcBounds.fTop);
112 } else {
113 // don't reference fSrcBounds, as it may not have been set
114 fDraw.fDst = fRootPixmap;
115 fDraw.fMatrixProvider = dev;
116 fDraw.fRC = &dev->fRCStack.rc();
117 fOrigin.set(0, 0);
118
119 fDraw.fCoverage = dev->accessCoverage();
120 }
121 }
122
123 bool needsTiling() const { return fNeedsTiling; }
124
125 const SkDraw* next() {
126 if (fDone) {
127 return nullptr;
128 }
129 if (fNeedsTiling) {
130 do {
131 this->stepAndSetupTileDraw(); // might set the clip to empty and fDone to true
132 } while (!fDone && fTileRC.isEmpty());
133 // if we exit the loop and we're still empty, we're (past) done
134 if (fTileRC.isEmpty()) {
135 SkASSERT(fDone);
136 return nullptr;
137 }
138 SkASSERT(!fTileRC.isEmpty());
139 } else {
140 fDone = true; // only draw untiled once
141 }
142 return &fDraw;
143 }
144
145private:
146 void stepAndSetupTileDraw() {
147 SkASSERT(!fDone);
148 SkASSERT(fNeedsTiling);
149
150 // We do fRootPixmap.width() - kMaxDim instead of fOrigin.fX + kMaxDim to avoid overflow.
151 if (fOrigin.fX >= fSrcBounds.fRight - kMaxDim) { // too far
152 fOrigin.fX = fSrcBounds.fLeft;
153 fOrigin.fY += kMaxDim;
154 } else {
155 fOrigin.fX += kMaxDim;
156 }
157 // fDone = next origin will be invalid.
158 fDone = fOrigin.fX >= fSrcBounds.fRight - kMaxDim &&
159 fOrigin.fY >= fSrcBounds.fBottom - kMaxDim;
160
161 SkIRect bounds = SkIRect::MakeXYWH(fOrigin.x(), fOrigin.y(), kMaxDim, kMaxDim);
162 SkASSERT(!bounds.isEmpty());
163 bool success = fRootPixmap.extractSubset(&fDraw.fDst, bounds);
164 SkASSERT_RELEASE(success);
165 // now don't use bounds, since fDst has the clipped dimensions.
166
167 fDraw.fMatrixProvider = fTileMatrixProvider.init(fDevice->asMatrixProvider(),
168 SkIntToScalar(-fOrigin.x()),
169 SkIntToScalar(-fOrigin.y()));
170 fDevice->fRCStack.rc().translate(-fOrigin.x(), -fOrigin.y(), &fTileRC);
171 fTileRC.op(SkIRect::MakeWH(fDraw.fDst.width(), fDraw.fDst.height()),
172 SkRegion::kIntersect_Op);
173 }
174};
175
176// Passing a bounds allows the tiler to only visit the dst-tiles that might intersect the
177// drawing. If null is passed, the tiler has to visit everywhere. The bounds is expected to be
178// in local coordinates, as the tiler itself will transform that into device coordinates.
179//
180#define LOOP_TILER(code, boundsPtr) \
181 SkDrawTiler priv_tiler(this, boundsPtr); \
182 while (const SkDraw* priv_draw = priv_tiler.next()) { \
183 priv_draw->code; \
184 }
185
186// Helper to create an SkDraw from a device
187class SkBitmapDevice::BDDraw : public SkDraw {
188public:
189 BDDraw(SkBitmapDevice* dev) {
190 // we need fDst to be set, and if we're actually drawing, to dirty the genID
191 if (!dev->accessPixels(&fDst)) {
192 // NoDrawDevice uses us (why?) so we have to catch this case w/ no pixels
193 fDst.reset(dev->imageInfo(), nullptr, 0);
194 }
195 fMatrixProvider = dev;
196 fRC = &dev->fRCStack.rc();
197 fCoverage = dev->accessCoverage();
198 }
199};
200
201static bool valid_for_bitmap_device(const SkImageInfo& info,
202 SkAlphaType* newAlphaType) {
203 if (info.width() < 0 || info.height() < 0 || kUnknown_SkColorType == info.colorType()) {
204 return false;
205 }
206
207 if (newAlphaType) {
208 *newAlphaType = SkColorTypeIsAlwaysOpaque(info.colorType()) ? kOpaque_SkAlphaType
209 : info.alphaType();
210 }
211
212 return true;
213}
214
215SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap)
216 : INHERITED(bitmap.info(), SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType))
217 , fBitmap(bitmap)
218 , fRCStack(bitmap.width(), bitmap.height())
219 , fGlyphPainter(this->surfaceProps(),
220 bitmap.colorType(),
221 bitmap.colorSpace(),
222 SkStrikeCache::GlobalStrikeCache()) {
223 SkASSERT(valid_for_bitmap_device(bitmap.info(), nullptr));
224}
225
226SkBitmapDevice* SkBitmapDevice::Create(const SkImageInfo& info) {
227 return Create(info, SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType));
228}
229
230SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap, const SkSurfaceProps& surfaceProps,
231 SkRasterHandleAllocator::Handle hndl, const SkBitmap* coverage)
232 : INHERITED(bitmap.info(), surfaceProps)
233 , fBitmap(bitmap)
234 , fRasterHandle(hndl)
235 , fRCStack(bitmap.width(), bitmap.height())
236 , fGlyphPainter(this->surfaceProps(),
237 bitmap.colorType(),
238 bitmap.colorSpace(),
239 SkStrikeCache::GlobalStrikeCache()) {
240 SkASSERT(valid_for_bitmap_device(bitmap.info(), nullptr));
241
242 if (coverage) {
243 SkASSERT(coverage->width() == bitmap.width());
244 SkASSERT(coverage->height() == bitmap.height());
245 fCoverage = std::make_unique<SkBitmap>(*coverage);
246 }
247}
248
249SkBitmapDevice* SkBitmapDevice::Create(const SkImageInfo& origInfo,
250 const SkSurfaceProps& surfaceProps,
251 bool trackCoverage,
252 SkRasterHandleAllocator* allocator) {
253 SkAlphaType newAT = origInfo.alphaType();
254 if (!valid_for_bitmap_device(origInfo, &newAT)) {
255 return nullptr;
256 }
257
258 SkRasterHandleAllocator::Handle hndl = nullptr;
259 const SkImageInfo info = origInfo.makeAlphaType(newAT);
260 SkBitmap bitmap;
261
262 if (kUnknown_SkColorType == info.colorType()) {
263 if (!bitmap.setInfo(info)) {
264 return nullptr;
265 }
266 } else if (allocator) {
267 hndl = allocator->allocBitmap(info, &bitmap);
268 if (!hndl) {
269 return nullptr;
270 }
271 } else if (info.isOpaque()) {
272 // If this bitmap is opaque, we don't have any sensible default color,
273 // so we just return uninitialized pixels.
274 if (!bitmap.tryAllocPixels(info)) {
275 return nullptr;
276 }
277 } else {
278 // This bitmap has transparency, so we'll zero the pixels (to transparent).
279 // We use the flag as a faster alloc-then-eraseColor(SK_ColorTRANSPARENT).
280 if (!bitmap.tryAllocPixelsFlags(info, SkBitmap::kZeroPixels_AllocFlag)) {
281 return nullptr;
282 }
283 }
284
285 SkBitmap coverage;
286 if (trackCoverage) {
287 SkImageInfo ci =
288 SkImageInfo::Make(info.dimensions(), kAlpha_8_SkColorType, kPremul_SkAlphaType);
289 if (!coverage.tryAllocPixelsFlags(ci, SkBitmap::kZeroPixels_AllocFlag)) {
290 return nullptr;
291 }
292 }
293
294 return new SkBitmapDevice(bitmap, surfaceProps, hndl, trackCoverage ? &coverage : nullptr);
295}
296
297void SkBitmapDevice::replaceBitmapBackendForRasterSurface(const SkBitmap& bm) {
298 SkASSERT(bm.width() == fBitmap.width());
299 SkASSERT(bm.height() == fBitmap.height());
300 fBitmap = bm; // intent is to use bm's pixelRef (and rowbytes/config)
301 this->privateResize(fBitmap.info().width(), fBitmap.info().height());
302}
303
304SkBaseDevice* SkBitmapDevice::onCreateDevice(const CreateInfo& cinfo, const SkPaint* layerPaint) {
305 const SkSurfaceProps surfaceProps(this->surfaceProps().flags(), cinfo.fPixelGeometry);
306
307 // Need to force L32 for now if we have an image filter.
308 // If filters ever support other colortypes, e.g. F16, we can modify this check.
309 SkImageInfo info = cinfo.fInfo;
310 if (layerPaint && layerPaint->getImageFilter()) {
311 // TODO: can we query the imagefilter, to see if it can handle floats (so we don't always
312 // use N32 when the layer itself was float)?
313 info = info.makeColorType(kN32_SkColorType);
314 }
315
316 return SkBitmapDevice::Create(info, surfaceProps, cinfo.fTrackCoverage, cinfo.fAllocator);
317}
318
319bool SkBitmapDevice::onAccessPixels(SkPixmap* pmap) {
320 if (this->onPeekPixels(pmap)) {
321 fBitmap.notifyPixelsChanged();
322 return true;
323 }
324 return false;
325}
326
327bool SkBitmapDevice::onPeekPixels(SkPixmap* pmap) {
328 const SkImageInfo info = fBitmap.info();
329 if (fBitmap.getPixels() && (kUnknown_SkColorType != info.colorType())) {
330 pmap->reset(fBitmap.info(), fBitmap.getPixels(), fBitmap.rowBytes());
331 return true;
332 }
333 return false;
334}
335
336bool SkBitmapDevice::onWritePixels(const SkPixmap& pm, int x, int y) {
337 // since we don't stop creating un-pixeled devices yet, check for no pixels here
338 if (nullptr == fBitmap.getPixels()) {
339 return false;
340 }
341
342 if (fBitmap.writePixels(pm, x, y)) {
343 fBitmap.notifyPixelsChanged();
344 return true;
345 }
346 return false;
347}
348
349bool SkBitmapDevice::onReadPixels(const SkPixmap& pm, int x, int y) {
350 return fBitmap.readPixels(pm, x, y);
351}
352
353///////////////////////////////////////////////////////////////////////////////
354
355void SkBitmapDevice::drawPaint(const SkPaint& paint) {
356 BDDraw(this).drawPaint(paint);
357}
358
359void SkBitmapDevice::drawPoints(SkCanvas::PointMode mode, size_t count,
360 const SkPoint pts[], const SkPaint& paint) {
361 LOOP_TILER( drawPoints(mode, count, pts, paint, nullptr), nullptr)
362}
363
364void SkBitmapDevice::drawRect(const SkRect& r, const SkPaint& paint) {
365 LOOP_TILER( drawRect(r, paint), Bounder(r, paint))
366}
367
368void SkBitmapDevice::drawOval(const SkRect& oval, const SkPaint& paint) {
369 SkPath path;
370 path.addOval(oval);
371 // call the VIRTUAL version, so any subclasses who do handle drawPath aren't
372 // required to override drawOval.
373 this->drawPath(path, paint, true);
374}
375
376void SkBitmapDevice::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
377#ifdef SK_IGNORE_BLURRED_RRECT_OPT
378 SkPath path;
379
380 path.addRRect(rrect);
381 // call the VIRTUAL version, so any subclasses who do handle drawPath aren't
382 // required to override drawRRect.
383 this->drawPath(path, paint, true);
384#else
385 LOOP_TILER( drawRRect(rrect, paint), Bounder(rrect.getBounds(), paint))
386#endif
387}
388
389void SkBitmapDevice::drawPath(const SkPath& path,
390 const SkPaint& paint,
391 bool pathIsMutable) {
392 const SkRect* bounds = nullptr;
393 if (SkDrawTiler::NeedsTiling(this) && !path.isInverseFillType()) {
394 bounds = &path.getBounds();
395 }
396 SkDrawTiler tiler(this, bounds ? Bounder(*bounds, paint).bounds() : nullptr);
397 if (tiler.needsTiling()) {
398 pathIsMutable = false;
399 }
400 while (const SkDraw* draw = tiler.next()) {
401 draw->drawPath(path, paint, nullptr, pathIsMutable);
402 }
403}
404
405void SkBitmapDevice::drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix,
406 const SkRect* dstOrNull, const SkPaint& paint) {
407 const SkRect* bounds = dstOrNull;
408 SkRect storage;
409 if (!bounds && SkDrawTiler::NeedsTiling(this)) {
410 matrix.mapRect(&storage, SkRect::MakeIWH(bitmap.width(), bitmap.height()));
411 Bounder b(storage, paint);
412 if (b.hasBounds()) {
413 storage = *b.bounds();
414 bounds = &storage;
415 }
416 }
417 LOOP_TILER(drawBitmap(bitmap, matrix, dstOrNull, paint), bounds)
418}
419
420static inline bool CanApplyDstMatrixAsCTM(const SkMatrix& m, const SkPaint& paint) {
421 if (!paint.getMaskFilter()) {
422 return true;
423 }
424
425 // Some mask filters parameters (sigma) depend on the CTM/scale.
426 return m.getType() <= SkMatrix::kTranslate_Mask;
427}
428
429void SkBitmapDevice::drawImageRect(const SkImage* image,
430 const SkRect* src, const SkRect& dst,
431 const SkPaint& paint, SkCanvas::SrcRectConstraint constraint) {
432 SkASSERT(dst.isFinite());
433 SkASSERT(dst.isSorted());
434
435 SkBitmap bitmap;
436 if (!as_IB(image)->getROPixels(&bitmap)) {
437 return;
438 }
439
440 SkMatrix matrix;
441 SkRect bitmapBounds, tmpSrc, tmpDst;
442 SkBitmap tmpBitmap;
443
444 bitmapBounds.setIWH(bitmap.width(), bitmap.height());
445
446 // Compute matrix from the two rectangles
447 if (src) {
448 tmpSrc = *src;
449 } else {
450 tmpSrc = bitmapBounds;
451 }
452 matrix.setRectToRect(tmpSrc, dst, SkMatrix::kFill_ScaleToFit);
453
454 LogDrawScaleFactor(this->localToDevice(), matrix, paint.getFilterQuality());
455
456 const SkRect* dstPtr = &dst;
457 const SkBitmap* bitmapPtr = &bitmap;
458
459 // clip the tmpSrc to the bounds of the bitmap, and recompute dstRect if
460 // needed (if the src was clipped). No check needed if src==null.
461 if (src) {
462 if (!bitmapBounds.contains(*src)) {
463 if (!tmpSrc.intersect(bitmapBounds)) {
464 return; // nothing to draw
465 }
466 // recompute dst, based on the smaller tmpSrc
467 matrix.mapRect(&tmpDst, tmpSrc);
468 if (!tmpDst.isFinite()) {
469 return;
470 }
471 dstPtr = &tmpDst;
472 }
473 }
474
475 if (src && !src->contains(bitmapBounds) &&
476 SkCanvas::kFast_SrcRectConstraint == constraint &&
477 paint.getFilterQuality() != kNone_SkFilterQuality) {
478 // src is smaller than the bounds of the bitmap, and we are filtering, so we don't know
479 // how much more of the bitmap we need, so we can't use extractSubset or drawBitmap,
480 // but we must use a shader w/ dst bounds (which can access all of the bitmap needed).
481 goto USE_SHADER;
482 }
483
484 if (src) {
485 // since we may need to clamp to the borders of the src rect within
486 // the bitmap, we extract a subset.
487 const SkIRect srcIR = tmpSrc.roundOut();
488 if (!bitmap.extractSubset(&tmpBitmap, srcIR)) {
489 return;
490 }
491 bitmapPtr = &tmpBitmap;
492
493 // Since we did an extract, we need to adjust the matrix accordingly
494 SkScalar dx = 0, dy = 0;
495 if (srcIR.fLeft > 0) {
496 dx = SkIntToScalar(srcIR.fLeft);
497 }
498 if (srcIR.fTop > 0) {
499 dy = SkIntToScalar(srcIR.fTop);
500 }
501 if (dx || dy) {
502 matrix.preTranslate(dx, dy);
503 }
504
505#ifdef SK_DRAWBITMAPRECT_FAST_OFFSET
506 SkRect extractedBitmapBounds = SkRect::MakeXYWH(dx, dy,
507 SkIntToScalar(bitmapPtr->width()),
508 SkIntToScalar(bitmapPtr->height()));
509#else
510 SkRect extractedBitmapBounds;
511 extractedBitmapBounds.setIWH(bitmapPtr->width(), bitmapPtr->height());
512#endif
513 if (extractedBitmapBounds == tmpSrc) {
514 // no fractional part in src, we can just call drawBitmap
515 goto USE_DRAWBITMAP;
516 }
517 } else {
518 USE_DRAWBITMAP:
519 // We can go faster by just calling drawBitmap, which will concat the
520 // matrix with the CTM, and try to call drawSprite if it can. If not,
521 // it will make a shader and call drawRect, as we do below.
522 if (CanApplyDstMatrixAsCTM(matrix, paint)) {
523 this->drawBitmap(*bitmapPtr, matrix, dstPtr, paint);
524 return;
525 }
526 }
527
528 USE_SHADER:
529
530 // TODO(herb): Move this over to SkArenaAlloc when arena alloc has a facility to return sk_sps.
531 // Since the shader need only live for our stack-frame, pass in a custom allocator. This
532 // can save malloc calls, and signals to SkMakeBitmapShader to not try to copy the bitmap
533 // if its mutable, since that precaution is not needed (give the short lifetime of the shader).
534
535 // construct a shader, so we can call drawRect with the dst
536 auto s = SkMakeBitmapShaderForPaint(paint, *bitmapPtr, SkTileMode::kClamp,
537 SkTileMode::kClamp, &matrix, kNever_SkCopyPixelsMode);
538 if (!s) {
539 return;
540 }
541
542 SkPaint paintWithShader(paint);
543 paintWithShader.setStyle(SkPaint::kFill_Style);
544 paintWithShader.setShader(std::move(s));
545
546 // Call ourself, in case the subclass wanted to share this setup code
547 // but handle the drawRect code themselves.
548 this->drawRect(*dstPtr, paintWithShader);
549}
550
551void SkBitmapDevice::drawGlyphRunList(const SkGlyphRunList& glyphRunList) {
552 LOOP_TILER( drawGlyphRunList(glyphRunList, &fGlyphPainter), nullptr )
553}
554
555void SkBitmapDevice::drawVertices(const SkVertices* vertices, SkBlendMode bmode,
556 const SkPaint& paint) {
557 BDDraw(this).drawVertices(vertices, bmode, paint);
558}
559
560void SkBitmapDevice::drawDevice(SkBaseDevice* device, int x, int y, const SkPaint& origPaint) {
561 SkASSERT(!origPaint.getImageFilter());
562 SkASSERT(!origPaint.getMaskFilter());
563
564 // todo: can we unify with similar adjustment in SkGpuDevice?
565 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
566
567 // hack to test coverage
568 SkBitmapDevice* src = static_cast<SkBitmapDevice*>(device);
569 if (src->fCoverage) {
570 SkDraw draw;
571 SkSimpleMatrixProvider matrixProvider(SkMatrix::I());
572 draw.fDst = fBitmap.pixmap();
573 draw.fMatrixProvider = &matrixProvider;
574 draw.fRC = &fRCStack.rc();
575 paint.writable()->setShader(src->fBitmap.makeShader());
576 draw.drawBitmap(*src->fCoverage.get(),
577 SkMatrix::Translate(SkIntToScalar(x),SkIntToScalar(y)), nullptr, *paint);
578 } else {
579 BDDraw(this).drawSprite(src->fBitmap, x, y, *paint);
580 }
581}
582
583void SkBitmapDevice::drawAtlas(const SkImage* atlas, const SkRSXform xform[],
584 const SkRect tex[], const SkColor colors[], int count,
585 SkBlendMode mode, const SkPaint& paint) {
586 // set this to true for performance comparisons with the old drawVertices way
587 if (false) {
588 this->INHERITED::drawAtlas(atlas, xform, tex, colors, count, mode, paint);
589 return;
590 }
591 BDDraw(this).drawAtlas(atlas, xform, tex, colors, count, mode, paint);
592}
593
594///////////////////////////////////////////////////////////////////////////////
595
596void SkBitmapDevice::drawSpecial(SkSpecialImage* src, int x, int y, const SkPaint& origPaint) {
597 SkASSERT(!src->isTextureBacked());
598 SkASSERT(!origPaint.getMaskFilter());
599
600 sk_sp<SkSpecialImage> filteredImage;
601 SkTCopyOnFirstWrite<SkPaint> paint(origPaint);
602
603 if (SkImageFilter* filter = paint->getImageFilter()) {
604 SkIPoint offset = SkIPoint::Make(0, 0);
605 const SkMatrix matrix = SkMatrix::Concat(
606 SkMatrix::Translate(SkIntToScalar(-x), SkIntToScalar(-y)), this->localToDevice());
607 const SkIRect clipBounds = fRCStack.rc().getBounds().makeOffset(-x, -y);
608 sk_sp<SkImageFilterCache> cache(this->getImageFilterCache());
609 SkImageFilter_Base::Context ctx(matrix, clipBounds, cache.get(), fBitmap.colorType(),
610 fBitmap.colorSpace(), src);
611
612 filteredImage = as_IFB(filter)->filterImage(ctx).imageAndOffset(&offset);
613 if (!filteredImage) {
614 return;
615 }
616
617 src = filteredImage.get();
618 paint.writable()->setImageFilter(nullptr);
619 x += offset.x();
620 y += offset.y();
621 }
622
623 SkBitmap resultBM;
624 if (src->getROPixels(&resultBM)) {
625 BDDraw(this).drawSprite(resultBM, x, y, *paint);
626 }
627}
628
629sk_sp<SkSpecialImage> SkBitmapDevice::makeSpecial(const SkBitmap& bitmap) {
630 return SkSpecialImage::MakeFromRaster(bitmap.bounds(), bitmap);
631}
632
633sk_sp<SkSpecialImage> SkBitmapDevice::makeSpecial(const SkImage* image) {
634 return SkSpecialImage::MakeFromImage(nullptr, SkIRect::MakeWH(image->width(), image->height()),
635 image->makeNonTextureImage());
636}
637
638sk_sp<SkSpecialImage> SkBitmapDevice::snapSpecial(const SkIRect& bounds, bool forceCopy) {
639 if (forceCopy) {
640 return SkSpecialImage::CopyFromRaster(bounds, fBitmap, &this->surfaceProps());
641 } else {
642 return SkSpecialImage::MakeFromRaster(bounds, fBitmap);
643 }
644}
645
646///////////////////////////////////////////////////////////////////////////////
647
648sk_sp<SkSurface> SkBitmapDevice::makeSurface(const SkImageInfo& info, const SkSurfaceProps& props) {
649 return SkSurface::MakeRaster(info, &props);
650}
651
652SkImageFilterCache* SkBitmapDevice::getImageFilterCache() {
653 SkImageFilterCache* cache = SkImageFilterCache::Get();
654 cache->ref();
655 return cache;
656}
657
658///////////////////////////////////////////////////////////////////////////////////////////////////
659
660void SkBitmapDevice::onSave() {
661 fRCStack.save();
662}
663
664void SkBitmapDevice::onRestore() {
665 fRCStack.restore();
666}
667
668void SkBitmapDevice::onClipRect(const SkRect& rect, SkClipOp op, bool aa) {
669 fRCStack.clipRect(this->localToDevice(), rect, op, aa);
670}
671
672void SkBitmapDevice::onClipRRect(const SkRRect& rrect, SkClipOp op, bool aa) {
673 fRCStack.clipRRect(this->localToDevice(), rrect, op, aa);
674}
675
676void SkBitmapDevice::onClipPath(const SkPath& path, SkClipOp op, bool aa) {
677 fRCStack.clipPath(this->localToDevice(), path, op, aa);
678}
679
680void SkBitmapDevice::onClipShader(sk_sp<SkShader> sh) {
681 fRCStack.clipShader(std::move(sh));
682}
683
684void SkBitmapDevice::onClipRegion(const SkRegion& rgn, SkClipOp op) {
685 SkIPoint origin = this->getOrigin();
686 SkRegion tmp;
687 const SkRegion* ptr = &rgn;
688 if (origin.fX | origin.fY) {
689 // translate from "global/canvas" coordinates to relative to this device
690 rgn.translate(-origin.fX, -origin.fY, &tmp);
691 ptr = &tmp;
692 }
693 fRCStack.clipRegion(*ptr, op);
694}
695
696void SkBitmapDevice::onReplaceClip(const SkIRect& rect) {
697 // Transform from "global/canvas" coordinates to relative to this device
698 SkIRect deviceRect = this->globalToDevice().mapRect(SkRect::Make(rect)).round();
699 fRCStack.replaceClip(deviceRect);
700}
701
702void SkBitmapDevice::onSetDeviceClipRestriction(SkIRect* mutableClipRestriction) {
703 fRCStack.setDeviceClipRestriction(mutableClipRestriction);
704 if (!mutableClipRestriction->isEmpty()) {
705 SkRegion rgn(*mutableClipRestriction);
706 fRCStack.clipRegion(rgn, SkClipOp::kIntersect);
707 }
708}
709
710bool SkBitmapDevice::onClipIsWideOpen() const {
711 const SkRasterClip& rc = fRCStack.rc();
712 // If we're AA, we can't be wide-open (we would represent that as BW)
713 return rc.isBW() && rc.bwRgn().isRect() &&
714 rc.bwRgn().getBounds() == SkIRect{0, 0, this->width(), this->height()};
715}
716
717bool SkBitmapDevice::onClipIsAA() const {
718 const SkRasterClip& rc = fRCStack.rc();
719 return !rc.isEmpty() && rc.isAA();
720}
721
722void SkBitmapDevice::onAsRgnClip(SkRegion* rgn) const {
723 const SkRasterClip& rc = fRCStack.rc();
724 if (rc.isAA()) {
725 rgn->setRect(rc.getBounds());
726 } else {
727 *rgn = rc.bwRgn();
728 }
729}
730
731void SkBitmapDevice::validateDevBounds(const SkIRect& drawClipBounds) {
732#ifdef SK_DEBUG
733 const SkIRect& stackBounds = fRCStack.rc().getBounds();
734 SkASSERT(drawClipBounds == stackBounds);
735#endif
736}
737
738SkBaseDevice::ClipType SkBitmapDevice::onGetClipType() const {
739 const SkRasterClip& rc = fRCStack.rc();
740 if (rc.isEmpty()) {
741 return ClipType::kEmpty;
742 } else if (rc.isRect()) {
743 return ClipType::kRect;
744 } else {
745 return ClipType::kComplex;
746 }
747}
748
749SkIRect SkBitmapDevice::onDevClipBounds() const {
750 return fRCStack.rc().getBounds();
751}
752