69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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* Copyright 2012 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/gm.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkColorPriv.h"
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#include "include/core/SkMatrix.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkPoint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkTileMode.h"
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#include "include/core/SkTypes.h"
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#include "tools/ToolUtils.h"
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DEF_SIMPLE_GM_BG(bigmatrix, canvas, 50, 50, ToolUtils::color_to_565(0xFF66AA99)) {
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SkMatrix m;
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m.reset();
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m.setRotate(33 * SK_Scalar1);
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m.postScale(3000 * SK_Scalar1, 3000 * SK_Scalar1);
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m.postTranslate(6000 * SK_Scalar1, -5000 * SK_Scalar1);
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canvas->concat(m);
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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paint.setAntiAlias(true);
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bool success = m.invert(&m);
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SkASSERT(success);
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(void)success; // silence compiler :(
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SkPoint pt = {10 * SK_Scalar1, 10 * SK_Scalar1};
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SkScalar small = 1 / (500 * SK_Scalar1);
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m.mapPoints(&pt, 1);
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canvas->drawCircle(pt.fX, pt.fY, small, paint);
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pt.set(30 * SK_Scalar1, 10 * SK_Scalar1);
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m.mapPoints(&pt, 1);
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SkRect rect = {pt.fX - small, pt.fY - small, pt.fX + small, pt.fY + small};
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canvas->drawRect(rect, paint);
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SkBitmap bmp;
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bmp.allocN32Pixels(2, 2);
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uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp.getPixels());
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pixels[0] = SkPackARGB32(0xFF, 0xFF, 0x00, 0x00);
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pixels[1] = SkPackARGB32(0xFF, 0x00, 0xFF, 0x00);
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pixels[2] = SkPackARGB32(0x80, 0x00, 0x00, 0x00);
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pixels[3] = SkPackARGB32(0xFF, 0x00, 0x00, 0xFF);
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pt.set(30 * SK_Scalar1, 30 * SK_Scalar1);
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m.mapPoints(&pt, 1);
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SkMatrix s;
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s.reset();
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s.setScale(SK_Scalar1 / 1000, SK_Scalar1 / 1000);
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paint.setShader(bmp.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
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SkSamplingOptions(SkFilterMode::kLinear), s));
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paint.setAntiAlias(false);
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rect.setLTRB(pt.fX - small, pt.fY - small, pt.fX + small, pt.fY + small);
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canvas->drawRect(rect, paint);
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}
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