Brian Osman | b433c56 | 2017-09-12 16:04:28 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 | #include "gm.h" |
| 8 | #include "sk_tool_utils.h" |
| 9 | #include "SkCanvas.h" |
Mike Reed | 5dd202d | 2018-02-06 23:05:36 +0000 | [diff] [blame] | 10 | #include "SkColorPriv.h" |
Brian Osman | b433c56 | 2017-09-12 16:04:28 -0400 | [diff] [blame] | 11 | #include "SkData.h" |
| 12 | #include "SkImage.h" |
| 13 | #include "SkImageEncoder.h" |
| 14 | |
| 15 | namespace skiagm { |
| 16 | |
| 17 | class ColorCubeGM : public GM { |
| 18 | public: |
| 19 | ColorCubeGM() {} |
| 20 | |
| 21 | protected: |
| 22 | SkString onShortName() override { |
| 23 | return SkString("jpg-color-cube"); |
| 24 | } |
| 25 | |
| 26 | SkISize onISize() override { |
| 27 | return SkISize::Make(512, 512); |
| 28 | } |
| 29 | |
| 30 | void onOnceBeforeDraw() override { |
| 31 | SkBitmap bmp; |
| 32 | bmp.allocN32Pixels(512, 512, true); |
| 33 | int bX = 0, bY = 0; |
| 34 | for (int b = 0; b < 64; ++b) { |
| 35 | for (int r = 0; r < 64; ++r) { |
| 36 | for (int g = 0; g < 64; ++g) { |
| 37 | *bmp.getAddr32(bX + r, bY + g) = SkPackARGB32(255, |
| 38 | SkTPin(r * 4, 0, 255), |
| 39 | SkTPin(g * 4, 0, 255), |
| 40 | SkTPin(b * 4, 0, 255)); |
| 41 | } |
| 42 | } |
| 43 | bX += 64; |
| 44 | if (bX >= 512) { |
| 45 | bX = 0; |
| 46 | bY += 64; |
| 47 | } |
| 48 | } |
| 49 | auto jpegData(sk_tool_utils::EncodeImageToData(bmp, SkEncodedImageFormat::kJPEG, 100)); |
| 50 | fImage = SkImage::MakeFromEncoded(jpegData); |
| 51 | } |
| 52 | |
| 53 | void onDraw(SkCanvas* canvas) override { |
| 54 | canvas->drawImage(fImage, 0, 0); |
| 55 | } |
| 56 | |
| 57 | private: |
| 58 | sk_sp<SkImage> fImage; |
| 59 | |
| 60 | typedef GM INHERITED; |
| 61 | }; |
| 62 | |
| 63 | DEF_GM( return new ColorCubeGM; ) |
| 64 | } |