82065d667f
SkSafeRef() and SkSafeUnref().
This is basically a bug waiting to happen. An optimizing compiler can remove
checks for null on "this" if it chooses. However, SkRefCnt::safeRef() relies on
precisely this check...
void SkRefCnt::safeRef() {
if (this) {
this->ref();
}
}
Since a compiler might skip the if-clause, it breaks the intention of this
method, hence its removal.
static inline void SkSafeRef(SkRefCnt* obj) {
if (obj) {
obj->ref();
}
}
This form is not ignored by an optimizing compile, so we use it instead.
git-svn-id: http://skia.googlecode.com/svn/trunk@762 2bbb7eff-a529-9590-31e7-b0007b416f81
122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkTypeface.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "Sk1DPathEffect.h"
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#include "SkCornerPathEffect.h"
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#include "SkPathMeasure.h"
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#include "SkRandom.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkDither.h"
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static const struct {
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const char* fName;
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SkTypeface::Style fStyle;
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} gFaces[] = {
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{ NULL, SkTypeface::kNormal },
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{ NULL, SkTypeface::kBold },
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{ "serif", SkTypeface::kNormal },
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{ "serif", SkTypeface::kBold },
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{ "serif", SkTypeface::kItalic },
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{ "serif", SkTypeface::kBoldItalic },
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{ "monospace", SkTypeface::kNormal }
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};
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static const int gFaceCount = SK_ARRAY_COUNT(gFaces);
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class FontScalerTestView : public SkView {
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SkTypeface* fFaces[gFaceCount];
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public:
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FontScalerTestView() {
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for (int i = 0; i < gFaceCount; i++) {
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fFaces[i] = SkTypeface::CreateFromName(gFaces[i].fName,
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gFaces[i].fStyle);
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}
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}
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virtual ~FontScalerTestView() {
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for (int i = 0; i < gFaceCount; i++) {
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SkSafeUnref(fFaces[i]);
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}
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "FontScaler Test");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawBG(SkCanvas* canvas) {
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canvas->drawColor(0xFFDDDDDD);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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SkPaint paint;
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// test handling of obscene cubic values (currently broken)
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if (false) {
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SkPoint pts[4];
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pts[0].set(1.61061274e+09, 6291456);
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pts[1].set(-7.18397061e+15, -1.53091184e+13);
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pts[2].set(-1.30077315e+16, -2.77196141e+13);
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pts[3].set(-1.30077315e+16, -2.77196162e+13);
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SkPath path;
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path.moveTo(pts[0]);
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path.cubicTo(pts[1], pts[2], pts[3]);
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canvas->drawPath(path, paint);
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}
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canvas->translate(200, 20);
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canvas->rotate(30);
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paint.setAntiAlias(true);
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SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
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// const char* text = "abcdefghijklmnopqrstuvwxyz";
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const char* text = "HnHnHnHnHnHnHnHnH";
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size_t textLen = strlen(text);
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SkScalar x = SkIntToScalar(10);
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SkScalar y = SkIntToScalar(20);
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{
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SkPaint p;
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p.setColor(SK_ColorRED);
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SkRect r;
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r.set(0, 0, x, y*20);
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canvas->drawRect(r, p);
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}
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int index = 0;
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for (int ps = 9; ps <= 24; ps++) {
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textLen = strlen(text);
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paint.setTextSize(SkIntToScalar(ps));
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canvas->drawText(text, textLen, x, y, paint);
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y += paint.getFontMetrics(NULL);
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index += 1;
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}
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new FontScalerTestView; }
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static SkViewRegister reg(MyFactory);
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