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#include "SkBenchmark.h"
#include "SkMatrix.h"
#include "SkString.h"
class MatrixBench : public SkBenchmark {
SkString fName;
enum { N = 100000 };
public:
MatrixBench(void* param, const char name[]) : INHERITED(param) {
fName.printf("matrix_%s", name);
}
virtual void performTest() = 0;
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) {
for (int i = 0; i < N; i++) {
this->performTest();
}
}
private:
typedef SkBenchmark INHERITED;
};
// we want to stop the compiler from eliminating code that it thinks is a no-op
// so we have a non-static global we increment, hoping that will convince the
// compiler to execute everything
int gMatrixBench_NonStaticGlobal;
#define always_do(pred) \
do { \
if (pred) { \
++gMatrixBench_NonStaticGlobal; \
} \
} while (0)
class EqualsMatrixBench : public MatrixBench {
public:
EqualsMatrixBench(void* param) : INHERITED(param, "equals") {}
protected:
virtual void performTest() {
SkMatrix m0, m1, m2;
m0.reset();
m1.reset();
m2.reset();
always_do(m0 == m1);
always_do(m1 == m2);
always_do(m2 == m0);
always_do(m0.getType());
always_do(m1.getType());
always_do(m2.getType());
}
private:
typedef MatrixBench INHERITED;
};
class ScaleMatrixBench : public MatrixBench {
public:
ScaleMatrixBench(void* param) : INHERITED(param, "scale") {
fM0.reset();
fM1.setScale(fSX, fSY);
fM2.setTranslate(fSX, fSY);
fSX = fSY = SkFloatToScalar(1.5f);
}
protected:
virtual void performTest() {
SkMatrix m;
m = fM0; m.preScale(fSX, fSY);
m = fM1; m.preScale(fSX, fSY);
m = fM2; m.preScale(fSX, fSY);
}
private:
SkMatrix fM0, fM1, fM2;
SkScalar fSX, fSY;
typedef MatrixBench INHERITED;
};
static SkBenchmark* M0(void* p) { return new EqualsMatrixBench(p); }
static SkBenchmark* M1(void* p) { return new ScaleMatrixBench(p); }
static BenchRegistry gReg0(M0);
static BenchRegistry gReg1(M1);
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