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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkTypeface.h"
enum {
NGLYPHS = 100
};
static SkTypeface::Encoding paint2Encoding(const SkPaint& paint) {
SkPaint::TextEncoding enc = paint.getTextEncoding();
SkASSERT(SkPaint::kGlyphID_TextEncoding != enc);
return (SkTypeface::Encoding)enc;
}
typedef void (*TypefaceProc)(int loops, const SkPaint&, const void* text, size_t len,
int glyphCount);
static void containsText_proc(int loops, const SkPaint& paint, const void* text, size_t len,
int glyphCount) {
for (int i = 0; i < loops; ++i) {
paint.containsText(text, len);
}
}
static void textToGlyphs_proc(int loops, const SkPaint& paint, const void* text, size_t len,
int glyphCount) {
uint16_t glyphs[NGLYPHS];
SkASSERT(glyphCount <= NGLYPHS);
for (int i = 0; i < loops; ++i) {
paint.textToGlyphs(text, len, glyphs);
}
}
static void charsToGlyphs_proc(int loops, const SkPaint& paint, const void* text,
size_t len, int glyphCount) {
SkTypeface::Encoding encoding = paint2Encoding(paint);
uint16_t glyphs[NGLYPHS];
SkASSERT(glyphCount <= NGLYPHS);
SkTypeface* face = paint.getTypeface();
for (int i = 0; i < loops; ++i) {
face->charsToGlyphs(text, encoding, glyphs, glyphCount);
}
}
static void charsToGlyphsNull_proc(int loops, const SkPaint& paint, const void* text,
size_t len, int glyphCount) {
SkTypeface::Encoding encoding = paint2Encoding(paint);
SkTypeface* face = paint.getTypeface();
for (int i = 0; i < loops; ++i) {
face->charsToGlyphs(text, encoding, NULL, glyphCount);
}
}
class CMAPBench : public Benchmark {
TypefaceProc fProc;
SkString fName;
char fText[NGLYPHS];
SkPaint fPaint;
public:
CMAPBench(TypefaceProc proc, const char name[]) {
fProc = proc;
fName.printf("cmap_%s", name);
for (int i = 0; i < NGLYPHS; ++i) {
// we're jamming values into utf8, so we must keep it legal utf8
fText[i] = 'A' + (i & 31);
}
fPaint.setTypeface(SkTypeface::RefDefault())->unref();
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
fProc(loops, fPaint, fText, sizeof(fText), NGLYPHS);
}
private:
typedef Benchmark INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new CMAPBench(containsText_proc, "paint_containsText"); )
DEF_BENCH( return new CMAPBench(textToGlyphs_proc, "paint_textToGlyphs"); )
DEF_BENCH( return new CMAPBench(charsToGlyphs_proc, "face_charsToGlyphs"); )
DEF_BENCH( return new CMAPBench(charsToGlyphsNull_proc, "face_charsToGlyphs_null"); )
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