584493e653
is fixed git-svn-id: http://skia.googlecode.com/svn/trunk@3338 2bbb7eff-a529-9590-31e7-b0007b416f81
107 lines
3.0 KiB
C++
107 lines
3.0 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkColorPriv.h"
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#include "SkShader.h"
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/*
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* Want to ensure that our bitmap sampler (in bitmap shader) keeps plenty of
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* precision when scaling very large images (where the dx might get very small.
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*/
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#define W 2560
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#define H 1600
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class GiantBitmapGM : public skiagm::GM {
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SkBitmap* fBM;
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SkShader::TileMode fMode;
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const SkBitmap& getBitmap() {
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if (NULL == fBM) {
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fBM = new SkBitmap;
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fBM->setConfig(SkBitmap::kARGB_8888_Config, W, H);
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fBM->allocPixels();
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fBM->eraseColor(SK_ColorWHITE);
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const SkColor colors[] = {
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SK_ColorBLUE, SK_ColorRED, SK_ColorBLACK, SK_ColorGREEN
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};
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SkCanvas canvas(*fBM);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setStrokeWidth(SkIntToScalar(30));
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for (int y = -H; y < H; y += 80) {
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SkScalar yy = SkIntToScalar(y);
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paint.setColor(colors[y/80 & 0x3]);
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canvas.drawLine(0, yy, SkIntToScalar(W), yy + SkIntToScalar(W),
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paint);
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}
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}
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return *fBM;
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}
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public:
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GiantBitmapGM(SkShader::TileMode mode) : fBM(NULL), fMode(mode) {}
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virtual ~GiantBitmapGM() {
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SkDELETE(fBM);
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}
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protected:
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// work-around for bug http://code.google.com/p/skia/issues/detail?id=520
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//
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virtual uint32_t onGetFlags() const { return kSkipPDF_Flag; }
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virtual SkString onShortName() {
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SkString str("giantbitmap_");
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switch (fMode) {
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case SkShader::kClamp_TileMode:
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str.append("clamp");
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break;
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case SkShader::kRepeat_TileMode:
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str.append("repeat");
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break;
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case SkShader::kMirror_TileMode:
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str.append("mirror");
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break;
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default:
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break;
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}
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return str;
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}
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virtual SkISize onISize() { return SkISize::Make(640, 480); }
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virtual void onDraw(SkCanvas* canvas) {
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SkPaint paint;
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SkShader* s = SkShader::CreateBitmapShader(getBitmap(), fMode, fMode);
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SkMatrix m;
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m.setScale(2*SK_Scalar1/3, 2*SK_Scalar1/3);
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s->setLocalMatrix(m);
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paint.setShader(s)->unref();
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canvas->drawPaint(paint);
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}
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private:
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typedef GM INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static skiagm::GM* G0(void*) { return new GiantBitmapGM(SkShader::kClamp_TileMode); }
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static skiagm::GM* G1(void*) { return new GiantBitmapGM(SkShader::kRepeat_TileMode); }
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static skiagm::GM* G2(void*) { return new GiantBitmapGM(SkShader::kMirror_TileMode); }
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static skiagm::GMRegistry reg0(G0);
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static skiagm::GMRegistry reg1(G1);
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static skiagm::GMRegistry reg2(G2);
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