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#include "SkBenchmark.h"
#include "SkBitmap.h"
#include "SkPaint.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkRandom.h"
#include "SkString.h"
static const char* gTileName[] = {
"clamp", "repeat", "mirror"
};
static const char* gConfigName[] = {
"ERROR", "a1", "a8", "index8", "565", "4444", "8888"
};
static void drawIntoBitmap(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);
}
static int conv6ToByte(int x) {
return x * 0xFF / 5;
}
static int convByteTo6(int x) {
return x * 5 / 255;
}
static uint8_t compute666Index(SkPMColor c) {
int r = SkGetPackedR32(c);
int g = SkGetPackedG32(c);
int b = SkGetPackedB32(c);
return convByteTo6(r) * 36 + convByteTo6(g) * 6 + convByteTo6(b);
}
static void convertToIndex666(const SkBitmap& src, SkBitmap* dst) {
SkColorTable* ctable = new SkColorTable(216);
SkPMColor* colors = ctable->lockColors();
// rrr ggg bbb
for (int r = 0; r < 6; r++) {
int rr = conv6ToByte(r);
for (int g = 0; g < 6; g++) {
int gg = conv6ToByte(g);
for (int b = 0; b < 6; b++) {
int bb = conv6ToByte(b);
*colors++ = SkPreMultiplyARGB(0xFF, rr, gg, bb);
}
}
}
ctable->unlockColors(true);
dst->setConfig(SkBitmap::kIndex8_Config, src.width(), src.height());
dst->allocPixels(ctable);
ctable->unref();
SkAutoLockPixels alps(src);
SkAutoLockPixels alpd(*dst);
for (int y = 0; y < src.height(); y++) {
const SkPMColor* srcP = src.getAddr32(0, y);
uint8_t* dstP = dst->getAddr8(0, y);
for (int x = src.width() - 1; x >= 0; --x) {
*dstP++ = compute666Index(*srcP++);
}
}
}
/* 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 SkBenchmark {
SkBitmap fBitmap;
SkPaint fPaint;
int fTileX, fTileY; // -1 means don't use shader
SkString fName;
enum { N = 300 };
public:
BitmapBench(SkBitmap::Config c, int tx = -1, int ty = -1) : fTileX(tx), fTileY(ty) {
const int w = 128;
const int h = 128;
SkBitmap bm;
if (SkBitmap::kIndex8_Config == c) {
bm.setConfig(SkBitmap::kARGB_8888_Config, w, h);
} else {
bm.setConfig(c, w, h);
}
bm.allocPixels();
bm.eraseColor(0);
drawIntoBitmap(bm);
if (SkBitmap::kIndex8_Config == c) {
convertToIndex666(bm, &fBitmap);
} else {
fBitmap = bm;
}
}
protected:
virtual const char* onGetName() {
fName.set("bitmap");
if (fTileX >= 0) {
fName.appendf("_%s", gTileName[fTileX]);
if (fTileY != fTileX) {
fName.appendf("_%s", gTileName[fTileY]);
}
}
fName.appendf("_%s", gConfigName[fBitmap.config()]);
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) {
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 < N; i++) {
SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
canvas->drawBitmap(bitmap, x, y, &paint);
}
}
private:
typedef SkBenchmark INHERITED;
};
static SkBenchmark* Fact0(void*) { return new BitmapBench(SkBitmap::kARGB_8888_Config); }
static SkBenchmark* Fact1(void*) { return new BitmapBench(SkBitmap::kRGB_565_Config); }
static SkBenchmark* Fact2(void*) { return new BitmapBench(SkBitmap::kARGB_4444_Config); }
static SkBenchmark* Fact3(void*) { return new BitmapBench(SkBitmap::kIndex8_Config); }
static BenchRegistry gReg0(Fact0);
static BenchRegistry gReg1(Fact1);
static BenchRegistry gReg2(Fact2);
static BenchRegistry gReg3(Fact3);
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