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67 lines
2.2 KiB
67 lines
2.2 KiB
4 months ago
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/*
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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.h"
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#include "sk_tool_utils.h"
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#include "SkColorPriv.h"
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#include "SkPath.h"
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#include "SkShader.h"
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DEF_SIMPLE_GM_BG(bigmatrix, canvas, 50, 50,
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sk_tool_utils::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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SkPath path;
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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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path.addCircle(pt.fX, pt.fY, small);
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canvas->drawPath(path, 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,
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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(SkShader::MakeBitmapShader(bmp, SkShader::kRepeat_TileMode,
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SkShader::kRepeat_TileMode, &s));
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paint.setAntiAlias(false);
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paint.setFilterQuality(kLow_SkFilterQuality);
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rect.setLTRB(pt.fX - small, pt.fY - small,
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pt.fX + small, pt.fY + small);
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canvas->drawRect(rect, paint);
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}
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