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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "DecodeFile.h"
#include "SampleCode.h"
#include "SkDumpCanvas.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkOSFile.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkUtils.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"
#include "SkXfermode.h"
#include "SkStream.h"
#include "SkSurface.h"
#include "SkGlyphCache.h"
#include "SkDrawFilter.h"
class SkCounterDrawFilter : public SkDrawFilter {
public:
SkCounterDrawFilter(int count) : fCount(count) {}
bool filter(SkPaint*, Type t) override {
return --fCount >= 0;
}
int fCount;
};
class PictFileView : public SampleView {
public:
PictFileView(const char name[] = nullptr)
: fFilename(name)
, fBBox(kNo_BBoxType)
, fTileSize(SkSize::Make(0, 0)) {
for (int i = 0; i < kBBoxTypeCount; ++i) {
fPictures[i] = nullptr;
}
fCount = 0;
}
~PictFileView() override {
this->freePictures();
}
void freePictures() {
for (int i = 0; i < kBBoxTypeCount; ++i) {
SkSafeUnref(fPictures[i]);
fPictures[i] = nullptr;
}
}
void onTileSizeChanged(const SkSize &tileSize) override {
if (tileSize != fTileSize) {
fTileSize = tileSize;
}
}
protected:
// overrides from SkEventSink
bool onQuery(SkEvent* evt) override {
if (SampleCode::TitleQ(*evt)) {
SkString name("P:");
const char* basename = strrchr(fFilename.c_str(), SkPATH_SEPARATOR);
name.append(basename ? basename+1: fFilename.c_str());
switch (fBBox) {
case kNo_BBoxType:
// No name appended
break;
case kRTree_BBoxType:
name.append(" <bbox: R>");
break;
default:
SkASSERT(false);
break;
}
SampleCode::TitleR(evt, name.c_str());
return true;
}
SkUnichar uni;
if (SampleCode::CharQ(*evt, &uni)) {
switch (uni) {
case 'n': fCount += 1; this->inval(nullptr); return true;
case 'p': fCount -= 1; this->inval(nullptr); return true;
case 's': fCount = 0; this->inval(nullptr); return true;
case 'F':
fFilterQuality = (kNone_SkFilterQuality == fFilterQuality) ?
kHigh_SkFilterQuality : kNone_SkFilterQuality;
this->freePictures();
this->inval(nullptr);
return true;
default: break;
}
}
return this->INHERITED::onQuery(evt);
}
bool onEvent(const SkEvent& evt) override {
if (evt.isType("PictFileView::toggleBBox")) {
fBBox = (BBoxType)((fBBox + 1) % kBBoxTypeCount);
return true;
}
return this->INHERITED::onEvent(evt);
}
void onDrawContent(SkCanvas* canvas) override {
SkASSERT(static_cast<int>(fBBox) < kBBoxTypeCount);
SkPicture** picture = fPictures + fBBox;
#ifdef SK_GLYPHCACHE_TRACK_HASH_STATS
SkGraphics::PurgeFontCache();
#endif
if (!*picture) {
*picture = LoadPicture(fFilename.c_str(), fBBox).release();
}
if (*picture) {
SkCounterDrawFilter filter(fCount);
if (fCount > 0) {
canvas->setDrawFilter(&filter);
}
canvas->drawPicture(*picture);
canvas->setDrawFilter(nullptr);
}
#ifdef SK_GLYPHCACHE_TRACK_HASH_STATS
SkGlyphCache::Dump();
SkDebugf("\n");
#endif
}
private:
enum BBoxType {
kNo_BBoxType,
kRTree_BBoxType,
kLast_BBoxType = kRTree_BBoxType,
};
static const int kBBoxTypeCount = kLast_BBoxType + 1;
SkString fFilename;
SkPicture* fPictures[kBBoxTypeCount];
BBoxType fBBox;
SkSize fTileSize;
int fCount;
SkFilterQuality fFilterQuality = kNone_SkFilterQuality;
sk_sp<SkPicture> LoadPicture(const char path[], BBoxType bbox) {
sk_sp<SkPicture> pic;
if (sk_sp<SkImage> img = decode_file(path)) {
SkPictureRecorder recorder;
SkCanvas* can = recorder.beginRecording(SkIntToScalar(img->width()),
SkIntToScalar(img->height()),
nullptr, 0);
SkPaint paint;
paint.setFilterQuality(fFilterQuality);
can->drawImage(img, 0, 0, &paint);
pic = recorder.finishRecordingAsPicture();
} else {
SkFILEStream stream(path);
if (stream.isValid()) {
pic = SkPicture::MakeFromStream(&stream);
} else {
SkDebugf("coun't load picture at \"path\"\n", path);
}
if (false) { // re-record
SkPictureRecorder recorder;
pic->playback(recorder.beginRecording(pic->cullRect().width(),
pic->cullRect().height(),
nullptr, 0));
sk_sp<SkPicture> p2(recorder.finishRecordingAsPicture());
SkString path2(path);
path2.append(".new.skp");
SkFILEWStream writer(path2.c_str());
p2->serialize(&writer);
}
}
if (nullptr == pic) {
return nullptr;
}
std::unique_ptr<SkBBHFactory> factory;
switch (bbox) {
case kNo_BBoxType:
// no bbox playback necessary
return pic;
case kRTree_BBoxType:
factory.reset(new SkRTreeFactory);
break;
default:
SkASSERT(false);
}
SkPictureRecorder recorder;
pic->playback(recorder.beginRecording(pic->cullRect().width(),
pic->cullRect().height(),
factory.get(), 0));
return recorder.finishRecordingAsPicture();
}
typedef SampleView INHERITED;
};
SampleView* CreateSamplePictFileView(const char filename[]);
SampleView* CreateSamplePictFileView(const char filename[]) {
return new PictFileView(filename);
}
//////////////////////////////////////////////////////////////////////////////
#if 0
static SkView* MyFactory() { return new PictFileView; }
static SkViewRegister reg(MyFactory);
#endif
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