1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192 |
- /*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkPictureCommon_DEFINED
- #define SkPictureCommon_DEFINED
- // Some shared code used by both SkBigPicture and SkMiniPicture.
- // SkTextHunter -- SkRecord visitor that returns true when the op draws text.
- // SkPathCounter -- SkRecord visitor that counts paths that draw slowly on the GPU.
- #include "include/core/SkPathEffect.h"
- #include "include/core/SkShader.h"
- #include "include/private/SkTLogic.h"
- #include "src/core/SkRecords.h"
- // TODO: might be nicer to have operator() return an int (the number of slow paths) ?
- struct SkPathCounter {
- // Some ops have a paint, some have an optional paint. Either way, get back a pointer.
- static const SkPaint* AsPtr(const SkPaint& p) { return &p; }
- static const SkPaint* AsPtr(const SkRecords::Optional<SkPaint>& p) { return p; }
- SkPathCounter() : fNumSlowPathsAndDashEffects(0) {}
- void checkPaint(const SkPaint* paint) {
- if (paint && paint->getPathEffect()) {
- // Initially assume it's slow.
- fNumSlowPathsAndDashEffects++;
- }
- }
- void operator()(const SkRecords::DrawPoints& op) {
- this->checkPaint(&op.paint);
- const SkPathEffect* effect = op.paint.getPathEffect();
- if (effect) {
- SkPathEffect::DashInfo info;
- SkPathEffect::DashType dashType = effect->asADash(&info);
- if (2 == op.count && SkPaint::kRound_Cap != op.paint.getStrokeCap() &&
- SkPathEffect::kDash_DashType == dashType && 2 == info.fCount) {
- fNumSlowPathsAndDashEffects--;
- }
- }
- }
- void operator()(const SkRecords::DrawPath& op) {
- this->checkPaint(&op.paint);
- if (op.paint.isAntiAlias() && !op.path.isConvex()) {
- SkPaint::Style paintStyle = op.paint.getStyle();
- const SkRect& pathBounds = op.path.getBounds();
- if (SkPaint::kStroke_Style == paintStyle &&
- 0 == op.paint.getStrokeWidth()) {
- // AA hairline concave path is not slow.
- } else if (SkPaint::kFill_Style == paintStyle && pathBounds.width() < 64.f &&
- pathBounds.height() < 64.f && !op.path.isVolatile()) {
- // AADF eligible concave path is not slow.
- } else {
- fNumSlowPathsAndDashEffects++;
- }
- }
- }
- void operator()(const SkRecords::ClipPath& op) {
- // TODO: does the SkRegion op matter?
- if (op.opAA.aa() && !op.path.isConvex()) {
- fNumSlowPathsAndDashEffects++;
- }
- }
- void operator()(const SkRecords::SaveLayer& op) {
- this->checkPaint(AsPtr(op.paint));
- }
- template <typename T>
- SK_WHEN(T::kTags & SkRecords::kHasPaint_Tag, void) operator()(const T& op) {
- this->checkPaint(AsPtr(op.paint));
- }
- template <typename T>
- SK_WHEN(!(T::kTags & SkRecords::kHasPaint_Tag), void)
- operator()(const T& op) { /* do nothing */ }
- int fNumSlowPathsAndDashEffects;
- };
- sk_sp<SkImage> ImageDeserializer_SkDeserialImageProc(const void*, size_t, void* imagedeserializer);
- bool SkPicture_StreamIsSKP(SkStream*, SkPictInfo*);
- #endif // SkPictureCommon_DEFINED
|