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skia2/bench/BitmapBench.cpp
Yuqian Li 24e963d429 Test performance of 565 bitmap scaling 
This would catch b/70172912

On Linux desktops, see the difference between 8888 and 565 using:

nanobench --config 8888 -m ^bitmap_RGB_565_scale$ ^bitmap_BGRA_8888_scale$ ^bitmap_RGB_565_scale_bilerp$ ^bitmap_BGRA_8888_scale_bilerp$

On Android, use:

nanobench --config 8888 -m ^bitmap_RGB_565_scale$ ^bitmap_RGBA_8888_scale$ ^bitmap_RGB_565_scale_bilerp$ ^bitmap_RGBA_8888_scale_bilerp$

The results are similar if nanobench is run with --config 565. So
it seems that the destination color type isn't very critical.

Bug: skia:
Change-Id: I71defda4d9e089a9a973cdb0c161773bc16e4a24
Reviewed-on: https://skia-review.googlesource.com/81141
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
2017-12-06 18:32:29 +00:00

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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 "Benchmark.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkString.h"
#include "sk_tool_utils.h"
/* Variants for bitmaps
- src depth (32 w+w/o alpha), 565, 4444, index, a8
- paint options: filtering, dither, alpha
- matrix options: translate, scale, rotate, persp
- tiling: none, repeat, mirror, clamp
*/
class BitmapBench : public Benchmark {
const SkColorType fColorType;
const SkAlphaType fAlphaType;
const bool fForceUpdate; //bitmap marked as dirty before each draw. forces bitmap to be updated on device cache
const bool fIsVolatile;
const bool fDoScale;
SkBitmap fBitmap;
SkPaint fPaint;
SkString fName;
enum { W = 128 };
enum { H = 128 };
public:
BitmapBench(SkColorType ct, SkAlphaType at, bool forceUpdate, bool isVolatile, bool doScale)
: fColorType(ct)
, fAlphaType(at)
, fForceUpdate(forceUpdate)
, fIsVolatile(isVolatile)
, fDoScale(doScale)
{}
protected:
const char* onGetName() override {
fName.set("bitmap");
fName.appendf("_%s%s", sk_tool_utils::colortype_name(fColorType),
kOpaque_SkAlphaType == fAlphaType ? "" : "_A");
if (fDoScale) {
fName.append("_scale");
}
if (fForceUpdate) {
fName.append("_update");
}
if (fIsVolatile) {
fName.append("_volatile");
}
return fName.c_str();
}
void onDelayedSetup() override {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(W, H, fColorType, fAlphaType));
bm.eraseColor(kOpaque_SkAlphaType == fAlphaType ? SK_ColorBLACK : 0);
this->onDrawIntoBitmap(bm);
fBitmap = bm;
fBitmap.setIsVolatile(fIsVolatile);
}
void onDraw(int loops, SkCanvas* canvas) override {
if (fDoScale) {
canvas->scale(.99f, .99f);
}
SkIPoint dim = this->getSize();
SkRandom rand;
SkPaint paint(fPaint);
this->setupPaint(&paint);
const SkBitmap& bitmap = fBitmap;
const SkScalar x0 = SkIntToScalar(-bitmap.width() / 2);
const SkScalar y0 = SkIntToScalar(-bitmap.height() / 2);
for (int i = 0; i < loops; i++) {
SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
if (fForceUpdate)
bitmap.notifyPixelsChanged();
canvas->drawBitmap(bitmap, x, y, &paint);
}
}
virtual void onDrawIntoBitmap(const SkBitmap& bm) {
const int w = bm.width();
const int h = bm.height();
SkCanvas canvas(bm);
SkPaint p;
p.setAntiAlias(true);
p.setColor(SK_ColorRED);
canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
SkIntToScalar(SkMin32(w, h))*3/8, p);
SkRect r;
r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(4));
p.setColor(SK_ColorBLUE);
canvas.drawRect(r, p);
}
private:
typedef Benchmark INHERITED;
};
/** Explicitly invoke some filter types to improve coverage of acceleration
procs. */
enum Flags {
kScale_Flag = 1 << 0,
kRotate_Flag = 1 << 1,
kBilerp_Flag = 1 << 2,
kBicubic_Flag = 1 << 3,
};
static bool isBilerp(uint32_t flags) {
return (flags & (kBilerp_Flag | kBicubic_Flag)) == (kBilerp_Flag);
}
static bool isBicubic(uint32_t flags) {
return (flags & (kBilerp_Flag | kBicubic_Flag)) == (kBilerp_Flag | kBicubic_Flag);
}
class FilterBitmapBench : public BitmapBench {
uint32_t fFlags;
SkString fFullName;
public:
FilterBitmapBench(SkColorType ct, SkAlphaType at,
bool forceUpdate, bool isVolitile, uint32_t flags)
: INHERITED(ct, at, forceUpdate, isVolitile, false)
, fFlags(flags) {
}
protected:
const char* onGetName() override {
fFullName.set(INHERITED::onGetName());
if (fFlags & kScale_Flag) {
fFullName.append("_scale");
}
if (fFlags & kRotate_Flag) {
fFullName.append("_rotate");
}
if (isBilerp(fFlags)) {
fFullName.append("_bilerp");
} else if (isBicubic(fFlags)) {
fFullName.append("_bicubic");
}
return fFullName.c_str();
}
void onDraw(int loops, SkCanvas* canvas) override {
SkISize dim = canvas->getBaseLayerSize();
if (fFlags & kScale_Flag) {
const SkScalar x = SkIntToScalar(dim.fWidth) / 2;
const SkScalar y = SkIntToScalar(dim.fHeight) / 2;
canvas->translate(x, y);
// just enough so we can't take the sprite case
canvas->scale(SK_Scalar1 * 99/100, SK_Scalar1 * 99/100);
canvas->translate(-x, -y);
}
if (fFlags & kRotate_Flag) {
const SkScalar x = SkIntToScalar(dim.fWidth) / 2;
const SkScalar y = SkIntToScalar(dim.fHeight) / 2;
canvas->rotate(SkIntToScalar(35), x, y);
}
INHERITED::onDraw(loops, canvas);
}
void setupPaint(SkPaint* paint) override {
this->INHERITED::setupPaint(paint);
int index = 0;
if (fFlags & kBilerp_Flag) {
index |= 1;
}
if (fFlags & kBicubic_Flag) {
index |= 2;
}
static const SkFilterQuality gQualitys[] = {
kNone_SkFilterQuality,
kLow_SkFilterQuality,
kMedium_SkFilterQuality,
kHigh_SkFilterQuality
};
paint->setFilterQuality(gQualitys[index]);
}
private:
typedef BitmapBench INHERITED;
};
/** Verify optimizations that test source alpha values. */
class SourceAlphaBitmapBench : public BitmapBench {
public:
enum SourceAlpha { kOpaque_SourceAlpha, kTransparent_SourceAlpha,
kTwoStripes_SourceAlpha, kThreeStripes_SourceAlpha};
private:
SkString fFullName;
SourceAlpha fSourceAlpha;
public:
SourceAlphaBitmapBench(SourceAlpha alpha, SkColorType ct,
bool forceUpdate = false, bool bitmapVolatile = false)
: INHERITED(ct, kPremul_SkAlphaType, forceUpdate, bitmapVolatile, false)
, fSourceAlpha(alpha) {
}
protected:
const char* onGetName() override {
fFullName.set(INHERITED::onGetName());
if (fSourceAlpha == kOpaque_SourceAlpha) {
fFullName.append("_source_opaque");
} else if (fSourceAlpha == kTransparent_SourceAlpha) {
fFullName.append("_source_transparent");
} else if (fSourceAlpha == kTwoStripes_SourceAlpha) {
fFullName.append("_source_stripes_two");
} else if (fSourceAlpha == kThreeStripes_SourceAlpha) {
fFullName.append("_source_stripes_three");
}
return fFullName.c_str();
}
void onDrawIntoBitmap(const SkBitmap& bm) override {
const int w = bm.width();
const int h = bm.height();
if (kOpaque_SourceAlpha == fSourceAlpha) {
bm.eraseColor(SK_ColorBLACK);
} else if (kTransparent_SourceAlpha == fSourceAlpha) {
bm.eraseColor(0);
} else if (kTwoStripes_SourceAlpha == fSourceAlpha) {
bm.eraseColor(0);
SkCanvas canvas(bm);
SkPaint p;
p.setAntiAlias(false);
p.setStyle(SkPaint::kFill_Style);
p.setColor(SK_ColorRED);
// Draw red vertical stripes on transparent background
SkRect r;
for (int x = 0; x < w; x+=2)
{
r.set(SkIntToScalar(x), 0, SkIntToScalar(x+1), SkIntToScalar(h));
canvas.drawRect(r, p);
}
} else if (kThreeStripes_SourceAlpha == fSourceAlpha) {
bm.eraseColor(0);
SkCanvas canvas(bm);
SkPaint p;
p.setAntiAlias(false);
p.setStyle(SkPaint::kFill_Style);
// Draw vertical stripes on transparent background with a pattern
// where the first pixel is fully transparent, the next is semi-transparent
// and the third is fully opaque.
SkRect r;
for (int x = 0; x < w; x++)
{
if (x % 3 == 0) {
continue; // Keep transparent
} else if (x % 3 == 1) {
p.setColor(SkColorSetARGB(127, 127, 127, 127)); // Semi-transparent
} else if (x % 3 == 2) {
p.setColor(SK_ColorRED); // Opaque
}
r.set(SkIntToScalar(x), 0, SkIntToScalar(x+1), SkIntToScalar(h));
canvas.drawRect(r, p);
}
}
}
private:
typedef BitmapBench INHERITED;
};
DEF_BENCH( return new BitmapBench(kN32_SkColorType, kPremul_SkAlphaType, false, false, false); )
DEF_BENCH( return new BitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, false, false, false); )
DEF_BENCH( return new BitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, false, false, true); )
DEF_BENCH( return new BitmapBench(kRGB_565_SkColorType, kOpaque_SkAlphaType, false, false, false); )
DEF_BENCH( return new BitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, true, false); )
DEF_BENCH( return new BitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, false, false); )
// scale filter -> S32_opaque_D32_filter_DX_{SSE2,SSSE3} and Fact9 is also for S32_D16_filter_DX_SSE2
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kPremul_SkAlphaType, false, false, kScale_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, false, false, kScale_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, true, kScale_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, false, kScale_Flag | kBilerp_Flag); )
// The following two cases test the performance regression of b/70172912 .
DEF_BENCH( return new FilterBitmapBench(kRGB_565_SkColorType, kOpaque_SkAlphaType, false, false, kScale_Flag | kBilerp_Flag); )
DEF_BENCH( return new BitmapBench(kRGB_565_SkColorType, kOpaque_SkAlphaType, false, false, true); )
// scale rotate filter -> S32_opaque_D32_filter_DXDY_{SSE2,SSSE3}
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kPremul_SkAlphaType, false, false, kScale_Flag | kRotate_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, false, false, kScale_Flag | kRotate_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, true, kScale_Flag | kRotate_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kOpaque_SkAlphaType, true, false, kScale_Flag | kRotate_Flag | kBilerp_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kPremul_SkAlphaType, false, false, kScale_Flag | kBilerp_Flag | kBicubic_Flag); )
DEF_BENCH( return new FilterBitmapBench(kN32_SkColorType, kPremul_SkAlphaType, false, false, kScale_Flag | kRotate_Flag | kBilerp_Flag | kBicubic_Flag); )
// source alpha tests -> S32A_Opaque_BlitRow32_{arm,neon}
DEF_BENCH( return new SourceAlphaBitmapBench(SourceAlphaBitmapBench::kOpaque_SourceAlpha, kN32_SkColorType); )
DEF_BENCH( return new SourceAlphaBitmapBench(SourceAlphaBitmapBench::kTransparent_SourceAlpha, kN32_SkColorType); )
DEF_BENCH( return new SourceAlphaBitmapBench(SourceAlphaBitmapBench::kTwoStripes_SourceAlpha, kN32_SkColorType); )
DEF_BENCH( return new SourceAlphaBitmapBench(SourceAlphaBitmapBench::kThreeStripes_SourceAlpha, kN32_SkColorType); )
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