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/*
* Copyright 2013 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 "SkShader.h"
#include "SkString.h"
static void create_gradient(SkBitmap* bm) {
SkASSERT(1 == bm->width());
const int height = bm->height();
float deltaB = 255.0f / height;
float blue = 255.0f;
SkAutoLockPixels lock(*bm);
for (int y = 0; y < height; y++) {
*bm->getAddr32(0, y) = SkColorSetRGB(0, 0, (U8CPU) blue);
blue -= deltaB;
}
}
// Test out the special case of a tiled 1xN texture. Test out opacity,
// filtering and the different tiling modes
class ConstXTileBench : public Benchmark {
SkPaint fPaint;
SkString fName;
bool fDoFilter;
bool fDoTrans;
bool fDoScale;
static const int kWidth = 1;
static const int kHeight = 300;
public:
ConstXTileBench(SkShader::TileMode xTile,
SkShader::TileMode yTile,
bool doFilter,
bool doTrans,
bool doScale)
: fDoFilter(doFilter)
, fDoTrans(doTrans)
, fDoScale(doScale) {
SkBitmap bm;
bm.allocN32Pixels(kWidth, kHeight, true);
bm.eraseColor(SK_ColorWHITE);
create_gradient(&bm);
SkShader* s = SkShader::CreateBitmapShader(bm, xTile, yTile);
fPaint.setShader(s)->unref();
fName.printf("constXTile_");
static const char* gTileModeStr[SkShader::kTileModeCount] = { "C", "R", "M" };
fName.append(gTileModeStr[xTile]);
fName.append(gTileModeStr[yTile]);
if (doFilter) {
fName.append("_filter");
}
if (doTrans) {
fName.append("_trans");
}
if (doScale) {
fName.append("_scale");
}
}
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(const int loops, SkCanvas* canvas) {
SkPaint paint(fPaint);
this->setupPaint(&paint);
paint.setFilterLevel(fDoFilter ? SkPaint::kLow_FilterLevel
: SkPaint::kNone_FilterLevel);
if (fDoTrans) {
paint.setColor(SkColorSetARGBMacro(0x80, 0xFF, 0xFF, 0xFF));
}
SkRect r;
if (fDoScale) {
r = SkRect::MakeWH(SkIntToScalar(2 * 640), SkIntToScalar(2 * 480));
canvas->scale(SK_ScalarHalf, SK_ScalarHalf);
} else {
r = SkRect::MakeWH(SkIntToScalar(640), SkIntToScalar(480));
}
SkPaint bgPaint;
bgPaint.setColor(SK_ColorWHITE);
for (int i = 0; i < loops; i++) {
if (fDoTrans) {
canvas->drawRect(r, bgPaint);
}
canvas->drawRect(r, paint);
}
}
private:
typedef Benchmark INHERITED;
};
// Scaled benches are trending towards free. Seems like caching.
// TODO(mtklein, reed): fix and reenable
//DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, false, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, false, false))
//DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, false, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, false, false))
//DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, false, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, false, false))
//DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, true, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, true, false))
//DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, true, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, true, false))
//DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, true, true))
DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, true, false))
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