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/*
* 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 "SkBigPicture.h"
#include "SkData.h"
#include "SkDrawable.h"
#include "SkImage.h"
#include "SkPictureRecorder.h"
#include "SkPictureUtils.h"
#include "SkRecord.h"
#include "SkRecordDraw.h"
#include "SkRecordOpts.h"
#include "SkRecordedDrawable.h"
#include "SkRecorder.h"
#include "SkTypes.h"
#include "SkTLogic.h"
namespace SkRecords {
struct OptimizeFor {
GrContext* fCtx;
// A few ops have a top-level SkImage:
void operator()(DrawAtlas* op) { this->make_texture(&op->atlas); }
void operator()(DrawImage* op) { this->make_texture(&op->image); }
void operator()(DrawImageNine* op) { this->make_texture(&op->image); }
void operator()(DrawImageRect* op) { this->make_texture(&op->image); }
void make_texture(sk_sp<const SkImage>* img) const {
*img = (*img)->makeTextureImage(fCtx);
}
// Some ops have a paint, some have an optional paint.
// Either way, get back a pointer.
static SkPaint* AsPtr(SkPaint& p) { return &p; }
static SkPaint* AsPtr(SkRecords::Optional<SkPaint>& p) { return p; }
// For all other types of ops, look for images inside the paint.
template <typename T>
SK_WHEN(T::kTags & kHasPaint_Tag, void) operator()(T* op) {
SkMatrix matrix;
SkShader::TileMode xy[2];
if (auto paint = AsPtr(op->paint))
if (auto shader = paint->getShader())
if (auto image = shader->isAImage(&matrix, xy)) {
paint->setShader(image->makeTextureImage(fCtx)->makeShader(xy[0], xy[1], &matrix));
}
// TODO: re-build compose shaders
}
// Control ops, etc. Nothing to do for these.
template <typename T>
SK_WHEN(!(T::kTags & kHasPaint_Tag), void) operator()(T*) {}
};
} // namespace SkRecords
static void optimize_for(GrContext* ctx, SkRecord* record) {
for (int i = 0; ctx && i < record->count(); i++) {
record->mutate(i, SkRecords::OptimizeFor{ctx});
}
}
SkPictureRecorder::SkPictureRecorder() {
fActivelyRecording = false;
fRecorder.reset(new SkRecorder(nullptr, SkRect::MakeWH(0, 0), &fMiniRecorder));
}
SkPictureRecorder::~SkPictureRecorder() {}
SkCanvas* SkPictureRecorder::beginRecording(const SkRect& cullRect,
SkBBHFactory* bbhFactory /* = nullptr */,
uint32_t recordFlags /* = 0 */) {
fCullRect = cullRect;
fFlags = recordFlags;
if (bbhFactory) {
fBBH.reset((*bbhFactory)(cullRect));
SkASSERT(fBBH.get());
}
if (!fRecord) {
fRecord.reset(new SkRecord);
}
SkRecorder::DrawPictureMode dpm = (recordFlags & kPlaybackDrawPicture_RecordFlag)
? SkRecorder::Playback_DrawPictureMode
: SkRecorder::Record_DrawPictureMode;
fRecorder->reset(fRecord.get(), cullRect, dpm, &fMiniRecorder);
fActivelyRecording = true;
return this->getRecordingCanvas();
}
SkCanvas* SkPictureRecorder::getRecordingCanvas() {
return fActivelyRecording ? fRecorder.get() : nullptr;
}
sk_sp<SkPicture> SkPictureRecorder::finishRecordingAsPicture(uint32_t finishFlags) {
fActivelyRecording = false;
fRecorder->restoreToCount(1); // If we were missing any restores, add them now.
if (fRecord->count() == 0) {
if (finishFlags & kReturnNullForEmpty_FinishFlag) {
return nullptr;
}
return fMiniRecorder.detachAsPicture(fCullRect);
}
// TODO: delay as much of this work until just before first playback?
SkRecordOptimize(fRecord);
optimize_for(fGrContextToOptimizeFor, fRecord);
if (fRecord->count() == 0) {
if (finishFlags & kReturnNullForEmpty_FinishFlag) {
return nullptr;
}
}
SkDrawableList* drawableList = fRecorder->getDrawableList();
SkBigPicture::SnapshotArray* pictList =
drawableList ? drawableList->newDrawableSnapshot() : nullptr;
if (fBBH.get()) {
SkAutoTMalloc<SkRect> bounds(fRecord->count());
SkRecordFillBounds(fCullRect, *fRecord, bounds);
fBBH->insert(bounds, fRecord->count());
// Now that we've calculated content bounds, we can update fCullRect, often trimming it.
// TODO: get updated fCullRect from bounds instead of forcing the BBH to return it?
SkRect bbhBound = fBBH->getRootBound();
SkASSERT((bbhBound.isEmpty() || fCullRect.contains(bbhBound))
|| (bbhBound.isEmpty() && fCullRect.isEmpty()));
fCullRect = bbhBound;
}
size_t subPictureBytes = fRecorder->approxBytesUsedBySubPictures();
for (int i = 0; pictList && i < pictList->count(); i++) {
subPictureBytes += SkPictureUtils::ApproximateBytesUsed(pictList->begin()[i]);
}
return sk_make_sp<SkBigPicture>(fCullRect, fRecord.release(), pictList, fBBH.release(),
subPictureBytes);
}
sk_sp<SkPicture> SkPictureRecorder::finishRecordingAsPictureWithCull(const SkRect& cullRect,
uint32_t finishFlags) {
fCullRect = cullRect;
return this->finishRecordingAsPicture(finishFlags);
}
void SkPictureRecorder::partialReplay(SkCanvas* canvas) const {
if (nullptr == canvas) {
return;
}
int drawableCount = 0;
SkDrawable* const* drawables = nullptr;
SkDrawableList* drawableList = fRecorder->getDrawableList();
if (drawableList) {
drawableCount = drawableList->count();
drawables = drawableList->begin();
}
SkRecordDraw(*fRecord, canvas, nullptr, drawables, drawableCount, nullptr/*bbh*/, nullptr/*callback*/);
}
sk_sp<SkDrawable> SkPictureRecorder::finishRecordingAsDrawable(uint32_t finishFlags) {
fActivelyRecording = false;
fRecorder->flushMiniRecorder();
fRecorder->restoreToCount(1); // If we were missing any restores, add them now.
SkRecordOptimize(fRecord);
optimize_for(fGrContextToOptimizeFor, fRecord);
if (fRecord->count() == 0) {
if (finishFlags & kReturnNullForEmpty_FinishFlag) {
return nullptr;
}
}
if (fBBH.get()) {
SkAutoTMalloc<SkRect> bounds(fRecord->count());
SkRecordFillBounds(fCullRect, *fRecord, bounds);
fBBH->insert(bounds, fRecord->count());
}
sk_sp<SkDrawable> drawable =
sk_make_sp<SkRecordedDrawable>(fRecord, fBBH, fRecorder->detachDrawableList(), fCullRect);
// release our refs now, so only the drawable will be the owner.
fRecord.reset(nullptr);
fBBH.reset(nullptr);
return drawable;
}
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