d3b65972aa
This silences a new warning in clang 5.0 Change-Id: Ieb5b75a6ffed60107c3fd16075d2ecfd515b55e8 Reviewed-on: https://skia-review.googlesource.com/10006 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Mike Klein <mtklein@chromium.org>
136 lines
4.3 KiB
C++
136 lines
4.3 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 257
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#define H 161
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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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bool fDoFilter;
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bool fDoRotate;
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const SkBitmap& getBitmap() {
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if (nullptr == fBM) {
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fBM = new SkBitmap;
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fBM->allocN32Pixels(W, H);
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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(20));
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#if 0
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for (int y = -H*2; y < H; y += 50) {
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SkScalar yy = SkIntToScalar(y);
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paint.setColor(colors[y/50 & 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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#else
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for (int x = -W; x < W; x += 60) {
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paint.setColor(colors[x/60 & 0x3]);
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SkScalar xx = SkIntToScalar(x);
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canvas.drawLine(xx, 0, xx, SkIntToScalar(H),
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paint);
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}
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#endif
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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, bool doFilter, bool doRotate) : fBM(nullptr) {
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fMode = mode;
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fDoFilter = doFilter;
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fDoRotate = doRotate;
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}
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~GiantBitmapGM() override { delete fBM; }
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protected:
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SkString onShortName() override {
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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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str.append(fDoFilter ? "_bilerp" : "_point");
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str.append(fDoRotate ? "_rotate" : "_scale");
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return str;
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}
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SkISize onISize() override { return SkISize::Make(640, 480); }
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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SkMatrix m;
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if (fDoRotate) {
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// m.setRotate(SkIntToScalar(30), 0, 0);
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m.setSkew(SK_Scalar1, 0, 0, 0);
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// m.postScale(2*SK_Scalar1/3, 2*SK_Scalar1/3);
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} else {
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SkScalar scale = 11*SK_Scalar1/12;
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m.setScale(scale, scale);
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}
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paint.setShader(SkShader::MakeBitmapShader(getBitmap(), fMode, fMode, &m));
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paint.setFilterQuality(fDoFilter ? kLow_SkFilterQuality : kNone_SkFilterQuality);
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canvas->translate(SkIntToScalar(50), SkIntToScalar(50));
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// SkRect r = SkRect::MakeXYWH(-50, -50, 32, 16);
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// canvas->drawRect(r, paint); return;
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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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DEF_GM( return new GiantBitmapGM(SkShader::kClamp_TileMode, false, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kRepeat_TileMode, false, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kMirror_TileMode, false, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kClamp_TileMode, true, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kRepeat_TileMode, true, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kMirror_TileMode, true, false); )
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DEF_GM( return new GiantBitmapGM(SkShader::kClamp_TileMode, false, true); )
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DEF_GM( return new GiantBitmapGM(SkShader::kRepeat_TileMode, false, true); )
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DEF_GM( return new GiantBitmapGM(SkShader::kMirror_TileMode, false, true); )
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DEF_GM( return new GiantBitmapGM(SkShader::kClamp_TileMode, true, true); )
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DEF_GM( return new GiantBitmapGM(SkShader::kRepeat_TileMode, true, true); )
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DEF_GM( return new GiantBitmapGM(SkShader::kMirror_TileMode, true, true); )
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