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- /*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "bench/Benchmark.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkString.h"
- #include "include/private/SkColorData.h"
- #include "include/private/SkFixed.h"
- #include "include/utils/SkRandom.h"
- #define TILE(x, width) (((x) & 0xFFFF) * width >> 16)
- class InterpBench : public Benchmark {
- enum {
- kBuffer = 128,
- kLoop = 20000
- };
- SkString fName;
- int16_t fDst[kBuffer];
- float fFx, fDx;
- public:
- InterpBench(const char name[]) {
- fName.printf("interp_%s", name);
- fFx = 3.3f;
- fDx = 0.1257f;
- }
- bool isSuitableFor(Backend backend) override {
- return backend == kNonRendering_Backend;
- }
- virtual void performTest(int16_t dst[], float x, float dx, int count) = 0;
- protected:
- virtual int mulLoopCount() const { return 1; }
- const char* onGetName() override {
- return fName.c_str();
- }
- void onDraw(int loops, SkCanvas*) override {
- int n = loops * this->mulLoopCount();
- for (int i = 0; i < n; i++) {
- this->performTest(fDst, fFx, fDx, kBuffer);
- }
- }
- private:
- typedef Benchmark INHERITED;
- };
- class Fixed16D16Interp : public InterpBench {
- public:
- Fixed16D16Interp() : INHERITED("16.16") {}
- protected:
- void performTest(int16_t dst[], float fx, float dx, int count) override {
- SkFixed curr = SkFloatToFixed(fx);
- SkFixed step = SkFloatToFixed(dx);
- for (int i = 0; i < count; i += 4) {
- dst[i + 0] = TILE(curr, count); curr += step;
- dst[i + 1] = TILE(curr, count); curr += step;
- dst[i + 2] = TILE(curr, count); curr += step;
- dst[i + 3] = TILE(curr, count); curr += step;
- }
- }
- private:
- typedef InterpBench INHERITED;
- };
- class Fixed32D32Interp : public InterpBench {
- public:
- Fixed32D32Interp() : INHERITED("32.32") {}
- protected:
- void performTest(int16_t dst[], float fx, float dx, int count) override {
- int64_t curr = (int64_t)(fx * 65536 * 655536);
- int64_t step = (int64_t)(dx * 65536 * 655536);
- SkFixed tmp;
- for (int i = 0; i < count; i += 4) {
- tmp = (SkFixed)(curr >> 16);
- dst[i + 0] = TILE(tmp, count);
- curr += step;
- tmp = (SkFixed)(curr >> 16);
- dst[i + 1] = TILE(tmp, count);
- curr += step;
- tmp = (SkFixed)(curr >> 16);
- dst[i + 2] = TILE(tmp, count);
- curr += step;
- tmp = (SkFixed)(curr >> 16);
- dst[i + 3] = TILE(tmp, count);
- curr += step;
- }
- }
- private:
- typedef InterpBench INHERITED;
- };
- class Fixed16D48Interp : public InterpBench {
- public:
- Fixed16D48Interp() : INHERITED("16.48") {}
- protected:
- void performTest(int16_t dst[], float fx, float dx, int count) override {
- int64_t curr = (int64_t)(fx * 65536 * 655536 * 65536);
- int64_t step = (int64_t)(dx * 65536 * 655536 * 65536);
- SkFixed tmp;
- for (int i = 0; i < count; i += 4) {
- tmp = (SkFixed) (curr >> 32); dst[i + 0] = TILE(tmp, count); curr += step;
- tmp = (SkFixed) (curr >> 32); dst[i + 1] = TILE(tmp, count); curr += step;
- tmp = (SkFixed) (curr >> 32); dst[i + 2] = TILE(tmp, count); curr += step;
- tmp = (SkFixed) (curr >> 32); dst[i + 3] = TILE(tmp, count); curr += step;
- }
- }
- private:
- typedef InterpBench INHERITED;
- };
- class FloatInterp : public InterpBench {
- public:
- FloatInterp() : INHERITED("float") {}
- protected:
- void performTest(int16_t dst[], float fx, float dx, int count) override {
- SkFixed tmp;
- for (int i = 0; i < count; i += 4) {
- tmp = SkFloatToFixed(fx); dst[i + 0] = TILE(tmp, count); fx += dx;
- tmp = SkFloatToFixed(fx); dst[i + 1] = TILE(tmp, count); fx += dx;
- tmp = SkFloatToFixed(fx); dst[i + 2] = TILE(tmp, count); fx += dx;
- tmp = SkFloatToFixed(fx); dst[i + 3] = TILE(tmp, count); fx += dx;
- }
- }
- private:
- typedef InterpBench INHERITED;
- };
- class DoubleInterp : public InterpBench {
- public:
- DoubleInterp() : INHERITED("double") {}
- protected:
- void performTest(int16_t dst[], float fx, float dx, int count) override {
- double ffx = fx;
- double ddx = dx;
- SkFixed tmp;
- for (int i = 0; i < count; i += 4) {
- tmp = SkDoubleToFixed(ffx); dst[i + 0] = TILE(tmp, count); ffx += ddx;
- tmp = SkDoubleToFixed(ffx); dst[i + 1] = TILE(tmp, count); ffx += ddx;
- tmp = SkDoubleToFixed(ffx); dst[i + 2] = TILE(tmp, count); ffx += ddx;
- tmp = SkDoubleToFixed(ffx); dst[i + 3] = TILE(tmp, count); ffx += ddx;
- }
- }
- private:
- typedef InterpBench INHERITED;
- };
- ///////////////////////////////////////////////////////////////////////////////
- DEF_BENCH( return new Fixed16D16Interp(); )
- DEF_BENCH( return new Fixed32D32Interp(); )
- DEF_BENCH( return new Fixed16D48Interp(); )
- DEF_BENCH( return new FloatInterp(); )
- DEF_BENCH( return new DoubleInterp(); )
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