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