1 /* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "gm/gm.h" 9 #include "include/core/SkBitmap.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/core/SkColor.h" 12 #include "include/core/SkColorPriv.h" 13 #include "include/core/SkFilterQuality.h" 14 #include "include/core/SkMatrix.h" 15 #include "include/core/SkPaint.h" 16 #include "include/core/SkPath.h" 17 #include "include/core/SkPoint.h" 18 #include "include/core/SkRect.h" 19 #include "include/core/SkScalar.h" 20 #include "include/core/SkShader.h" 21 #include "include/core/SkTileMode.h" 22 #include "include/core/SkTypes.h" 23 #include "tools/ToolUtils.h" 24 25 DEF_SIMPLE_GM_BG(bigmatrix, canvas, 50, 50, ToolUtils::color_to_565(0xFF66AA99)) { 26 SkMatrix m; 27 m.reset(); 28 m.setRotate(33 * SK_Scalar1); 29 m.postScale(3000 * SK_Scalar1, 3000 * SK_Scalar1); 30 m.postTranslate(6000 * SK_Scalar1, -5000 * SK_Scalar1); 31 canvas->concat(m); 32 33 SkPaint paint; 34 paint.setColor(SK_ColorRED); 35 paint.setAntiAlias(true); 36 37 bool success = m.invert(&m); 38 SkASSERT(success); 39 (void)success; // silence compiler :( 40 41 SkPath path; 42 43 SkPoint pt = {10 * SK_Scalar1, 10 * SK_Scalar1}; 44 SkScalar small = 1 / (500 * SK_Scalar1); 45 46 m.mapPoints(&pt, 1); 47 path.addCircle(pt.fX, pt.fY, small); 48 canvas->drawPath(path, paint); 49 50 pt.set(30 * SK_Scalar1, 10 * SK_Scalar1); 51 m.mapPoints(&pt, 1); 52 SkRect rect = {pt.fX - small, pt.fY - small, pt.fX + small, pt.fY + small}; 53 canvas->drawRect(rect, paint); 54 55 SkBitmap bmp; 56 bmp.allocN32Pixels(2, 2); 57 uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp.getPixels()); 58 pixels[0] = SkPackARGB32(0xFF, 0xFF, 0x00, 0x00); 59 pixels[1] = SkPackARGB32(0xFF, 0x00, 0xFF, 0x00); 60 pixels[2] = SkPackARGB32(0x80, 0x00, 0x00, 0x00); 61 pixels[3] = SkPackARGB32(0xFF, 0x00, 0x00, 0xFF); 62 pt.set(30 * SK_Scalar1, 30 * SK_Scalar1); 63 m.mapPoints(&pt, 1); 64 SkMatrix s; 65 s.reset(); 66 s.setScale(SK_Scalar1 / 1000, SK_Scalar1 / 1000); 67 paint.setShader(bmp.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, &s)); 68 paint.setAntiAlias(false); 69 paint.setFilterQuality(kLow_SkFilterQuality); 70 rect.setLTRB(pt.fX - small, pt.fY - small, pt.fX + small, pt.fY + small); 71 canvas->drawRect(rect, paint); 72 } 73