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expand drawAtlas bench to include rotations

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We special-case unrotated shapes today (drawing rects instead of quads/paths).
This new bench shows that the rotated case is over 4x slow. Probably should
do something about that.

Change-Id: Ie80a42b981a1841f980c70a5f8f8a32357d764b7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/233976
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
This commit is contained in:
Mike Reed 2019-08-12 08:49:36 -04:00 committed by Skia Commit-Bot
parent da037b8535
commit c2da70fbef
1 changed files with 20 additions and 10 deletions
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30
bench/VertBench.cpp
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@ -101,7 +101,7 @@ DEF_BENCH(return new VertBench();)
enum AtlasFlags {
kColors_Flag = 1 << 0,
kVerts_Flag = 1 << 1,
kRotate_Flag = 1 << 1,
};
class AtlasBench : public Benchmark {
@ -120,7 +120,13 @@ class AtlasBench : public Benchmark {
public:
AtlasBench(unsigned flags) : fFlags(flags) {
fName.printf("drawAtlas_%d", flags);
fName.printf("drawAtlas");
if (flags & kColors_Flag) {
fName.append("_colors");
}
if (flags & kRotate_Flag) {
fName.append("_rotated");
}
}
~AtlasBench() override {}
@ -134,28 +140,30 @@ protected:
const SkScalar imageW = fAtlas->width();
const SkScalar imageH = fAtlas->height();
SkScalar scos = 1;
SkScalar ssin = 0;
if (fFlags & kRotate_Flag) {
scos = 0.866025403784439f; // sqrt(3)/2
ssin = 0.5f;
}
SkRandom rand;
for (int i = 0; i < N; ++i) {
fRects[i] = SkRect::MakeXYWH(rand.nextF() * (imageW - 8),
rand.nextF() * (imageH - 8), 8, 8);
fColors[i] = rand.nextU() | 0xFF000000;
fXforms[i] = SkRSXform::Make(1, 0, rand.nextF() * W, rand.nextF() * H);
fXforms[i] = SkRSXform::Make(scos, ssin, rand.nextF() * W, rand.nextF() * H);
}
}
void onDraw(int loops, SkCanvas* canvas) override {
const SkRect* cullRect = nullptr;
const SkPaint* paintPtr = nullptr;
const SkColor* colors = nullptr;
const SkImage* atlas = nullptr;
if (fFlags & kColors_Flag) {
colors = fColors;
}
if (fFlags & kVerts_Flag) {
atlas = fAtlas.get();
}
for (int i = 0; i < loops; i++) {
canvas->drawAtlas(atlas, fXforms, fRects, colors, N, SkBlendMode::kModulate,
canvas->drawAtlas(fAtlas, fXforms, fRects, colors, N, SkBlendMode::kModulate,
cullRect, paintPtr);
}
}
@ -164,6 +172,8 @@ private:
};
//DEF_BENCH(return new AtlasBench(0);)
//DEF_BENCH(return new AtlasBench(kColors_Flag);)
DEF_BENCH(return new AtlasBench(kVerts_Flag);)
DEF_BENCH(return new AtlasBench(kVerts_Flag | kColors_Flag);)
DEF_BENCH(return new AtlasBench(0);)
DEF_BENCH(return new AtlasBench(kRotate_Flag);)
DEF_BENCH(return new AtlasBench(kColors_Flag);)
DEF_BENCH(return new AtlasBench(kColors_Flag | kRotate_Flag);)