blob: df584499bb38f038172a53f64c22fd0777ace415 [file] [log] [blame]
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/core/SkRecorder.h"
#include "include/core/SkImage.h"
#include "include/core/SkPicture.h"
#include "include/core/SkSurface.h"
#include "include/private/SkTo.h"
#include "src/core/SkBigPicture.h"
#include "src/core/SkCanvasPriv.h"
#include "src/utils/SkPatchUtils.h"
#include <new>
SkDrawableList::~SkDrawableList() {
fArray.unrefAll();
}
SkBigPicture::SnapshotArray* SkDrawableList::newDrawableSnapshot() {
const int count = fArray.count();
if (0 == count) {
return nullptr;
}
SkAutoTMalloc<const SkPicture*> pics(count);
for (int i = 0; i < count; ++i) {
pics[i] = fArray[i]->newPictureSnapshot();
}
return new SkBigPicture::SnapshotArray(pics.release(), count);
}
void SkDrawableList::append(SkDrawable* drawable) {
*fArray.append() = SkRef(drawable);
}
///////////////////////////////////////////////////////////////////////////////////////////////
SkRecorder::SkRecorder(SkRecord* record, int width, int height, SkMiniRecorder* mr)
: SkCanvasVirtualEnforcer<SkNoDrawCanvas>(width, height)
, fDrawPictureMode(Record_DrawPictureMode)
, fApproxBytesUsedBySubPictures(0)
, fRecord(record)
, fMiniRecorder(mr) {}
SkRecorder::SkRecorder(SkRecord* record, const SkRect& bounds, SkMiniRecorder* mr)
: SkCanvasVirtualEnforcer<SkNoDrawCanvas>(bounds.roundOut())
, fDrawPictureMode(Record_DrawPictureMode)
, fApproxBytesUsedBySubPictures(0)
, fRecord(record)
, fMiniRecorder(mr) {}
void SkRecorder::reset(SkRecord* record, const SkRect& bounds,
DrawPictureMode dpm, SkMiniRecorder* mr) {
this->forgetRecord();
fDrawPictureMode = dpm;
fRecord = record;
this->resetCanvas(bounds.roundOut());
fMiniRecorder = mr;
}
void SkRecorder::forgetRecord() {
fDrawableList.reset(nullptr);
fApproxBytesUsedBySubPictures = 0;
fRecord = nullptr;
}
// To make appending to fRecord a little less verbose.
template<typename T, typename... Args>
void SkRecorder::append(Args&&... args) {
if (fMiniRecorder) {
this->flushMiniRecorder();
}
new (fRecord->append<T>()) T{std::forward<Args>(args)...};
}
#define TRY_MINIRECORDER(method, ...) \
if (fMiniRecorder && fMiniRecorder->method(__VA_ARGS__)) return
// For methods which must call back into SkNoDrawCanvas.
#define INHERITED(method, ...) this->SkNoDrawCanvas::method(__VA_ARGS__)
// Use copy() only for optional arguments, to be copied if present or skipped if not.
// (For most types we just pass by value and let copy constructors do their thing.)
template <typename T>
T* SkRecorder::copy(const T* src) {
if (nullptr == src) {
return nullptr;
}
return new (fRecord->alloc<T>()) T(*src);
}
// This copy() is for arrays.
// It will work with POD or non-POD, though currently we only use it for POD.
template <typename T>
T* SkRecorder::copy(const T src[], size_t count) {
if (nullptr == src) {
return nullptr;
}
T* dst = fRecord->alloc<T>(count);
for (size_t i = 0; i < count; i++) {
new (dst + i) T(src[i]);
}
return dst;
}
// Specialization for copying strings, using memcpy.
// This measured around 2x faster for copying code points,
// but I found no corresponding speedup for other arrays.
template <>
char* SkRecorder::copy(const char src[], size_t count) {
if (nullptr == src) {
return nullptr;
}
char* dst = fRecord->alloc<char>(count);
memcpy(dst, src, count);
return dst;
}
// As above, assuming and copying a terminating \0.
template <>
char* SkRecorder::copy(const char* src) {
return this->copy(src, strlen(src)+1);
}
void SkRecorder::flushMiniRecorder() {
if (fMiniRecorder) {
SkMiniRecorder* mr = fMiniRecorder;
fMiniRecorder = nullptr; // Needs to happen before flushAndReset() or we recurse forever.
mr->flushAndReset(this);
}
}
void SkRecorder::onDrawPaint(const SkPaint& paint) {
this->append<SkRecords::DrawPaint>(paint);
}
void SkRecorder::onDrawBehind(const SkPaint& paint) {
this->append<SkRecords::DrawBehind>(paint);
}
void SkRecorder::onDrawPoints(PointMode mode,
size_t count,
const SkPoint pts[],
const SkPaint& paint) {
this->append<SkRecords::DrawPoints>(paint, mode, SkToUInt(count), this->copy(pts, count));
}
void SkRecorder::onDrawRect(const SkRect& rect, const SkPaint& paint) {
TRY_MINIRECORDER(drawRect, rect, paint);
this->append<SkRecords::DrawRect>(paint, rect);
}
void SkRecorder::onDrawRegion(const SkRegion& region, const SkPaint& paint) {
this->append<SkRecords::DrawRegion>(paint, region);
}
void SkRecorder::onDrawOval(const SkRect& oval, const SkPaint& paint) {
this->append<SkRecords::DrawOval>(paint, oval);
}
void SkRecorder::onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle,
bool useCenter, const SkPaint& paint) {
this->append<SkRecords::DrawArc>(paint, oval, startAngle, sweepAngle, useCenter);
}
void SkRecorder::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) {
this->append<SkRecords::DrawRRect>(paint, rrect);
}
void SkRecorder::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint) {
this->append<SkRecords::DrawDRRect>(paint, outer, inner);
}
void SkRecorder::onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) {
if (fDrawPictureMode == Record_DrawPictureMode) {
if (!fDrawableList) {
fDrawableList.reset(new SkDrawableList);
}
fDrawableList->append(drawable);
this->append<SkRecords::DrawDrawable>(this->copy(matrix), drawable->getBounds(), fDrawableList->count() - 1);
} else {
SkASSERT(fDrawPictureMode == Playback_DrawPictureMode);
drawable->draw(this, matrix);
}
}
void SkRecorder::onDrawPath(const SkPath& path, const SkPaint& paint) {
TRY_MINIRECORDER(drawPath, path, paint);
this->append<SkRecords::DrawPath>(paint, path);
}
void SkRecorder::onDrawBitmap(const SkBitmap& bitmap,
SkScalar left,
SkScalar top,
const SkPaint* paint) {
sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
if (image) {
this->onDrawImage(image.get(), left, top, paint);
}
}
void SkRecorder::onDrawBitmapRect(const SkBitmap& bitmap,
const SkRect* src,
const SkRect& dst,
const SkPaint* paint,
SrcRectConstraint constraint) {
sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
if (image) {
this->onDrawImageRect(image.get(), src, dst, paint, constraint);
}
}
void SkRecorder::onDrawBitmapNine(const SkBitmap& bitmap,
const SkIRect& center,
const SkRect& dst,
const SkPaint* paint) {
sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
if (image) {
this->onDrawImageNine(image.get(), center, dst, paint);
}
}
void SkRecorder::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice,
const SkRect& dst, const SkPaint* paint) {
sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
this->onDrawImageLattice(image.get(), lattice, dst, paint);
}
void SkRecorder::onDrawImage(const SkImage* image, SkScalar left, SkScalar top,
const SkPaint* paint) {
this->append<SkRecords::DrawImage>(this->copy(paint), sk_ref_sp(image), left, top);
}
void SkRecorder::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst,
const SkPaint* paint, SrcRectConstraint constraint) {
this->append<SkRecords::DrawImageRect>(this->copy(paint), sk_ref_sp(image), this->copy(src), dst, constraint);
}
void SkRecorder::onDrawImageNine(const SkImage* image, const SkIRect& center,
const SkRect& dst, const SkPaint* paint) {
this->append<SkRecords::DrawImageNine>(this->copy(paint), sk_ref_sp(image), center, dst);
}
void SkRecorder::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
const SkPaint* paint) {
int flagCount = lattice.fRectTypes ? (lattice.fXCount + 1) * (lattice.fYCount + 1) : 0;
SkASSERT(lattice.fBounds);
this->append<SkRecords::DrawImageLattice>(this->copy(paint), sk_ref_sp(image),
lattice.fXCount, this->copy(lattice.fXDivs, lattice.fXCount),
lattice.fYCount, this->copy(lattice.fYDivs, lattice.fYCount),
flagCount, this->copy(lattice.fRectTypes, flagCount),
this->copy(lattice.fColors, flagCount), *lattice.fBounds, dst);
}
void SkRecorder::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) {
TRY_MINIRECORDER(drawTextBlob, blob, x, y, paint);
this->append<SkRecords::DrawTextBlob>(paint, sk_ref_sp(blob), x, y);
}
void SkRecorder::onDrawPicture(const SkPicture* pic, const SkMatrix* matrix, const SkPaint* paint) {
if (fDrawPictureMode == Record_DrawPictureMode) {
fApproxBytesUsedBySubPictures += pic->approximateBytesUsed();
this->append<SkRecords::DrawPicture>(this->copy(paint), sk_ref_sp(pic), matrix ? *matrix : SkMatrix::I());
} else if (fDrawPictureMode == PlaybackTop_DrawPictureMode) {
// temporarily change the mode of this recorder to Record,
fDrawPictureMode = Record_DrawPictureMode;
// play back the top level picture
SkAutoCanvasMatrixPaint acmp(this, matrix, paint, pic->cullRect());
pic->playback(this);
// restore the mode
fDrawPictureMode = PlaybackTop_DrawPictureMode;
} else {
SkASSERT(fDrawPictureMode == Playback_DrawPictureMode);
SkAutoCanvasMatrixPaint acmp(this, matrix, paint, pic->cullRect());
pic->playback(this);
}
}
void SkRecorder::onDrawVerticesObject(const SkVertices* vertices, const SkVertices::Bone bones[],
int boneCount, SkBlendMode bmode, const SkPaint& paint) {
this->append<SkRecords::DrawVertices>(paint,
sk_ref_sp(const_cast<SkVertices*>(vertices)),
this->copy(bones, boneCount),
boneCount,
bmode);
}
void SkRecorder::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkBlendMode bmode,
const SkPaint& paint) {
this->append<SkRecords::DrawPatch>(paint,
cubics ? this->copy(cubics, SkPatchUtils::kNumCtrlPts) : nullptr,
colors ? this->copy(colors, SkPatchUtils::kNumCorners) : nullptr,
texCoords ? this->copy(texCoords, SkPatchUtils::kNumCorners) : nullptr,
bmode);
}
void SkRecorder::onDrawAtlas(const SkImage* atlas, const SkRSXform xform[], const SkRect tex[],
const SkColor colors[], int count, SkBlendMode mode,
const SkRect* cull, const SkPaint* paint) {
this->append<SkRecords::DrawAtlas>(this->copy(paint),
sk_ref_sp(atlas),
this->copy(xform, count),
this->copy(tex, count),
this->copy(colors, count),
count,
mode,
this->copy(cull));
}
void SkRecorder::onDrawShadowRec(const SkPath& path, const SkDrawShadowRec& rec) {
this->append<SkRecords::DrawShadowRec>(path, rec);
}
void SkRecorder::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) {
this->append<SkRecords::DrawAnnotation>(rect, SkString(key), sk_ref_sp(value));
}
void SkRecorder::onDrawEdgeAAQuad(const SkRect& rect, const SkPoint clip[4],
QuadAAFlags aa, const SkColor4f& color, SkBlendMode mode) {
this->append<SkRecords::DrawEdgeAAQuad>(
rect, this->copy(clip, 4), aa, color, mode);
}
void SkRecorder::onDrawEdgeAAImageSet(const ImageSetEntry set[], int count,
const SkPoint dstClips[], const SkMatrix preViewMatrices[],
const SkPaint* paint, SrcRectConstraint constraint) {
int totalDstClipCount, totalMatrixCount;
SkCanvasPriv::GetDstClipAndMatrixCounts(set, count, &totalDstClipCount, &totalMatrixCount);
SkAutoTArray<ImageSetEntry> setCopy(count);
for (int i = 0; i < count; ++i) {
setCopy[i] = set[i];
}
this->append<SkRecords::DrawEdgeAAImageSet>(this->copy(paint), std::move(setCopy), count,
this->copy(dstClips, totalDstClipCount),
this->copy(preViewMatrices, totalMatrixCount), constraint);
}
void SkRecorder::onFlush() {
this->append<SkRecords::Flush>();
}
void SkRecorder::willSave() {
this->append<SkRecords::Save>();
}
SkCanvas::SaveLayerStrategy SkRecorder::getSaveLayerStrategy(const SaveLayerRec& rec) {
this->append<SkRecords::SaveLayer>(this->copy(rec.fBounds)
, this->copy(rec.fPaint)
, sk_ref_sp(rec.fBackdrop)
, sk_ref_sp(rec.fClipMask)
, this->copy(rec.fClipMatrix)
, rec.fSaveLayerFlags);
return SkCanvas::kNoLayer_SaveLayerStrategy;
}
bool SkRecorder::onDoSaveBehind(const SkRect* subset) {
this->append<SkRecords::SaveBehind>(this->copy(subset));
return false;
}
void SkRecorder::didRestore() {
this->append<SkRecords::Restore>(this->getTotalMatrix());
}
void SkRecorder::didConcat(const SkMatrix& matrix) {
this->append<SkRecords::Concat>(matrix);
}
void SkRecorder::didSetMatrix(const SkMatrix& matrix) {
this->append<SkRecords::SetMatrix>(matrix);
}
void SkRecorder::didTranslate(SkScalar dx, SkScalar dy) {
this->append<SkRecords::Translate>(dx, dy);
}
void SkRecorder::onClipRect(const SkRect& rect, SkClipOp op, ClipEdgeStyle edgeStyle) {
INHERITED(onClipRect, rect, op, edgeStyle);
SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle);
this->append<SkRecords::ClipRect>(rect, opAA);
}
void SkRecorder::onClipRRect(const SkRRect& rrect, SkClipOp op, ClipEdgeStyle edgeStyle) {
INHERITED(onClipRRect, rrect, op, edgeStyle);
SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle);
this->append<SkRecords::ClipRRect>(rrect, opAA);
}
void SkRecorder::onClipPath(const SkPath& path, SkClipOp op, ClipEdgeStyle edgeStyle) {
INHERITED(onClipPath, path, op, edgeStyle);
SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle);
this->append<SkRecords::ClipPath>(path, opAA);
}
void SkRecorder::onClipRegion(const SkRegion& deviceRgn, SkClipOp op) {
INHERITED(onClipRegion, deviceRgn, op);
this->append<SkRecords::ClipRegion>(deviceRgn, op);
}
sk_sp<SkSurface> SkRecorder::onNewSurface(const SkImageInfo&, const SkSurfaceProps&) {
return nullptr;
}