Brian Salomon | be3c1d2 | 2018-05-21 12:54:39 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
| 9 | #include "include/core/SkImage.h" |
| 10 | #include "include/core/SkPath.h" |
| 11 | #include "include/core/SkSurface.h" |
| 12 | #include "include/effects/SkGradientShader.h" |
| 13 | #include "tools/Resources.h" |
| 14 | #include "tools/ToolUtils.h" |
Brian Salomon | be3c1d2 | 2018-05-21 12:54:39 -0400 | [diff] [blame] | 15 | |
| 16 | static sk_sp<SkImage> make_image1() { return GetResourceAsImage("images/mandrill_128.png"); } |
| 17 | |
| 18 | static sk_sp<SkImage> make_image2() { |
| 19 | return GetResourceAsImage("images/brickwork-texture.jpg")->makeSubset({0, 0, 128, 128}); |
| 20 | } |
| 21 | |
| 22 | namespace skiagm { |
| 23 | |
| 24 | class PerspImages : public GM { |
| 25 | public: |
| 26 | PerspImages() = default; |
| 27 | |
| 28 | protected: |
| 29 | SkString onShortName() override { return SkString("persp_images"); } |
| 30 | |
Brian Salomon | b80ffee | 2018-05-23 16:39:39 -0400 | [diff] [blame] | 31 | SkISize onISize() override { return SkISize::Make(1150, 1280); } |
Brian Salomon | be3c1d2 | 2018-05-21 12:54:39 -0400 | [diff] [blame] | 32 | |
| 33 | void onOnceBeforeDraw() override { |
| 34 | fImages.push_back(make_image1()); |
| 35 | fImages.push_back(make_image2()); |
| 36 | } |
| 37 | |
| 38 | void onDraw(SkCanvas* canvas) override { |
| 39 | SkTDArray<SkMatrix> matrices; |
| 40 | matrices.push()->setAll(1.f, 0.f, 0.f, |
| 41 | 0.f, 1.f, 0.f, |
| 42 | 0.f, 0.005f, 1.f); |
| 43 | matrices.push()->setAll(1.f, 0.f, 0.f, |
| 44 | 0.f, 1.f, 0.f, |
| 45 | 0.007f, -0.005f, 1.f); |
| 46 | matrices[1].preSkew(0.2f, -0.1f); |
| 47 | matrices[1].preRotate(-65.f); |
| 48 | matrices[1].preScale(1.2f, .8f); |
| 49 | matrices[1].postTranslate(0.f, 60.f); |
| 50 | SkPaint paint; |
| 51 | int n = 0; |
| 52 | SkRect bounds = SkRect::MakeEmpty(); |
| 53 | for (const auto& img : fImages) { |
| 54 | SkRect imgB = SkRect::MakeWH(img->width(), img->height()); |
| 55 | for (const auto& m : matrices) { |
| 56 | SkRect temp; |
| 57 | m.mapRect(&temp, imgB); |
| 58 | bounds.join(temp); |
| 59 | } |
| 60 | } |
| 61 | canvas->translate(-bounds.fLeft + 10.f, -bounds.fTop + 10.f); |
| 62 | canvas->save(); |
Brian Salomon | b80ffee | 2018-05-23 16:39:39 -0400 | [diff] [blame] | 63 | enum class DrawType { |
| 64 | kDrawImage, |
| 65 | kDrawImageRectStrict, |
| 66 | kDrawImageRectFast, |
| 67 | }; |
| 68 | for (auto type : |
| 69 | {DrawType::kDrawImage, DrawType::kDrawImageRectStrict, DrawType::kDrawImageRectFast}) { |
Brian Salomon | be3c1d2 | 2018-05-21 12:54:39 -0400 | [diff] [blame] | 70 | for (const auto& m : matrices) { |
| 71 | for (auto aa : {false, true}) { |
| 72 | paint.setAntiAlias(aa); |
| 73 | for (auto filter : {kNone_SkFilterQuality, kLow_SkFilterQuality, |
| 74 | kMedium_SkFilterQuality, kHigh_SkFilterQuality}) { |
| 75 | for (const auto& img : fImages) { |
| 76 | paint.setFilterQuality(filter); |
| 77 | canvas->save(); |
| 78 | canvas->concat(m); |
Brian Salomon | b80ffee | 2018-05-23 16:39:39 -0400 | [diff] [blame] | 79 | SkRect src = {img->width() / 4.f, img->height() / 4.f, |
| 80 | 3.f * img->width() / 4.f, 3.f * img->height() / 4}; |
| 81 | SkRect dst = {0, 0, |
| 82 | 3.f / 4.f * img->width(), 3.f / 4.f * img->height()}; |
| 83 | switch (type) { |
| 84 | case DrawType::kDrawImage: |
| 85 | canvas->drawImage(img, 0, 0, &paint); |
| 86 | break; |
| 87 | case DrawType::kDrawImageRectStrict: |
| 88 | canvas->drawImageRect(img, src, dst, &paint, |
| 89 | SkCanvas::kStrict_SrcRectConstraint); |
| 90 | break; |
| 91 | case DrawType::kDrawImageRectFast: |
| 92 | canvas->drawImageRect(img, src, dst, &paint, |
| 93 | SkCanvas::kFast_SrcRectConstraint); |
| 94 | break; |
Brian Salomon | be3c1d2 | 2018-05-21 12:54:39 -0400 | [diff] [blame] | 95 | } |
| 96 | canvas->restore(); |
| 97 | ++n; |
| 98 | if (n < 8) { |
| 99 | canvas->translate(bounds.width() + 10.f, 0); |
| 100 | } else { |
| 101 | canvas->restore(); |
| 102 | canvas->translate(0, bounds.height() + 10.f); |
| 103 | canvas->save(); |
| 104 | n = 0; |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | canvas->restore(); |
| 112 | } |
| 113 | |
| 114 | private: |
| 115 | static constexpr int kNumImages = 4; |
| 116 | SkTArray<sk_sp<SkImage>> fImages; |
| 117 | |
| 118 | typedef GM INHERITED; |
| 119 | }; |
| 120 | |
| 121 | ////////////////////////////////////////////////////////////////////////////// |
| 122 | |
| 123 | DEF_GM(return new PerspImages();) |
| 124 | |
| 125 | } // namespace skiagm |