reed | c8e4765 | 2015-02-19 11:39:46 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 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.h" |
| 9 | #include "SkCanvas.h" |
| 10 | #include "SkImage.h" |
| 11 | #include "SkRandom.h" |
| 12 | #include "SkSurface.h" |
| 13 | |
| 14 | static SkImage* make_image() { |
| 15 | const SkImageInfo info = SkImageInfo::MakeN32Premul(319, 52); |
| 16 | SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info)); |
| 17 | SkCanvas* canvas = surface->getCanvas(); |
| 18 | canvas->drawColor(0xFFF8F8F8); |
| 19 | |
| 20 | SkPaint paint; |
| 21 | paint.setAntiAlias(true); |
| 22 | |
| 23 | paint.setStyle(SkPaint::kStroke_Style); |
| 24 | for (int i = 0; i < 20; ++i) { |
| 25 | canvas->drawCircle(-4, 25, 20, paint); |
| 26 | canvas->translate(25, 0); |
| 27 | } |
| 28 | return surface->newImageSnapshot(); |
| 29 | } |
| 30 | |
| 31 | static void test_mip(SkCanvas* canvas) { |
| 32 | SkAutoTUnref<SkImage> img(make_image());//SkImage::NewFromData(data)); |
| 33 | |
| 34 | SkPaint paint; |
| 35 | const SkRect dst = SkRect::MakeWH(177, 15); |
| 36 | |
| 37 | paint.setTextSize(30); |
| 38 | SkString str; |
| 39 | str.printf("scale %g %g", dst.width() / img->width(), dst.height() / img->height()); |
| 40 | // canvas->drawText(str.c_str(), str.size(), 300, 100, paint); |
| 41 | |
| 42 | canvas->translate(20, 20); |
| 43 | for (int i = 0; i < 4; ++i) { |
| 44 | paint.setFilterLevel(SkPaint::FilterLevel(i)); |
| 45 | canvas->drawImageRect(img, NULL, dst, &paint); |
| 46 | canvas->translate(0, 20); |
| 47 | } |
| 48 | canvas->drawImage(img, 20, 20, NULL); |
| 49 | } |
| 50 | |
| 51 | class MipMapGM : public skiagm::GM { |
| 52 | public: |
| 53 | MipMapGM() {} |
| 54 | |
| 55 | protected: |
| 56 | SkString onShortName() SK_OVERRIDE { return SkString("mipmap"); } |
| 57 | |
| 58 | SkISize onISize() SK_OVERRIDE { return SkISize::Make(400, 200); } |
| 59 | |
| 60 | void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 61 | test_mip(canvas); |
| 62 | } |
| 63 | |
| 64 | private: |
| 65 | typedef skiagm::GM INHERITED; |
| 66 | }; |
| 67 | DEF_GM( return new MipMapGM; ) |
| 68 | |