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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "Resources.h"
#include "SkAutoPixmapStorage.h"
#include "SkData.h"
#include "SkImage.h"
#include "SkPDFBitmap.h"
#include "SkPDFUtils.h"
#include "SkPixmap.h"
#include "SkRandom.h"
namespace {
struct NullWStream : public SkWStream {
NullWStream() : fN(0) {}
bool write(const void*, size_t n) override { fN += n; return true; }
size_t bytesWritten() const override { return fN; }
size_t fN;
};
static void test_pdf_object_serialization(SkPDFObject* object) {
// SkDebugWStream wStream;
NullWStream wStream;
SkPDFSubstituteMap substitutes;
SkPDFObjNumMap objNumMap;
objNumMap.addObjectRecursively(object, substitutes);
for (int i = 0; i < objNumMap.objects().count(); ++i) {
SkPDFObject* object = objNumMap.objects()[i];
wStream.writeDecAsText(i + 1);
wStream.writeText(" 0 obj\n");
object->emitObject(&wStream, objNumMap, substitutes);
wStream.writeText("\nendobj\n");
}
}
class PDFImageBench : public Benchmark {
public:
PDFImageBench() {}
virtual ~PDFImageBench() {}
protected:
const char* onGetName() override { return "PDFImage"; }
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDelayedSetup() override {
SkAutoTUnref<SkImage> img(GetResourceAsImage("color_wheel.png"));
if (img) {
// force decoding, throw away reference to encoded data.
SkAutoPixmapStorage pixmap;
pixmap.alloc(SkImageInfo::MakeN32Premul(img->dimensions()));
if (img->readPixels(pixmap, 0, 0)) {
fImage.reset(SkImage::NewRasterCopy(
pixmap.info(), pixmap.addr(),
pixmap.rowBytes(), pixmap.ctable()));
}
}
}
void onDraw(int loops, SkCanvas*) override {
if (!fImage) {
return;
}
while (loops-- > 0) {
SkAutoTUnref<SkPDFObject> object(
SkPDFCreateBitmapObject(fImage, nullptr));
SkASSERT(object);
if (!object) {
return;
}
test_pdf_object_serialization(object);
}
}
private:
SkAutoTUnref<SkImage> fImage;
};
class PDFJpegImageBench : public Benchmark {
public:
PDFJpegImageBench() {}
virtual ~PDFJpegImageBench() {}
protected:
const char* onGetName() override { return "PDFJpegImage"; }
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDelayedSetup() override {
SkAutoTUnref<SkImage> img(
GetResourceAsImage("mandrill_512_q075.jpg"));
if (!img) { return; }
SkAutoTUnref<SkData> encoded(img->refEncoded());
SkASSERT(encoded);
if (!encoded) { return; }
fImage.reset(img.release());
}
void onDraw(int loops, SkCanvas*) override {
if (!fImage) {
SkDEBUGFAIL("");
return;
}
while (loops-- > 0) {
SkAutoTUnref<SkPDFObject> object(
SkPDFCreateBitmapObject(fImage, nullptr));
SkASSERT(object);
if (!object) {
return;
}
test_pdf_object_serialization(object);
}
}
private:
SkAutoTUnref<SkImage> fImage;
};
/** Test calling DEFLATE on a 78k PDF command stream. Used for measuring
alternate zlib settings, usage, and library versions. */
class PDFCompressionBench : public Benchmark {
public:
PDFCompressionBench() {}
virtual ~PDFCompressionBench() {}
protected:
const char* onGetName() override { return "PDFCompression"; }
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDelayedSetup() override {
fAsset.reset(GetResourceAsStream("pdf_command_stream.txt"));
}
void onDraw(int loops, SkCanvas*) override {
SkASSERT(fAsset);
if (!fAsset) { return; }
while (loops-- > 0) {
SkAutoTUnref<SkPDFObject> object(
new SkPDFSharedStream(fAsset->duplicate()));
test_pdf_object_serialization(object);
}
}
private:
SkAutoTDelete<SkStreamAsset> fAsset;
};
// Test speed of SkPDFUtils::FloatToDecimal for typical floats that
// might be found in a PDF document.
struct PDFScalarBench : public Benchmark {
bool isSuitableFor(Backend b) override {
return b == kNonRendering_Backend;
}
const char* onGetName() override { return "PDFScalar"; }
void onDraw(int loops, SkCanvas*) override {
SkRandom random;
char dst[SkPDFUtils::kMaximumFloatDecimalLength];
while (loops-- > 0) {
auto f = random.nextRangeF(-500.0f, 1500.0f);
(void)SkPDFUtils::FloatToDecimal(f, dst);
}
}
};
} // namespace
DEF_BENCH(return new PDFImageBench;)
DEF_BENCH(return new PDFJpegImageBench;)
DEF_BENCH(return new PDFCompressionBench;)
DEF_BENCH(return new PDFScalarBench;)
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