ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 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 "include/core/SkBitmap.h" |
| 9 | #include "include/core/SkCanvas.h" |
| 10 | #include "include/core/SkShader.h" |
| 11 | #include "include/effects/SkGradientShader.h" |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 12 | #include "include/effects/SkImageFilters.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "tests/Test.h" |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 14 | |
| 15 | static void test_unscaled(skiatest::Reporter* reporter) { |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 16 | static const int kWidth = 10; |
| 17 | static const int kHeight = 10; |
| 18 | |
| 19 | SkIRect ir = SkIRect::MakeWH(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 20 | |
| 21 | SkBitmap filterResult, paintResult; |
| 22 | |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 23 | filterResult.allocN32Pixels(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 24 | SkCanvas canvasFilter(filterResult); |
| 25 | canvasFilter.clear(0x00000000); |
| 26 | |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 27 | paintResult.allocN32Pixels(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 28 | SkCanvas canvasPaint(paintResult); |
| 29 | canvasPaint.clear(0x00000000); |
| 30 | |
| 31 | SkPoint center = SkPoint::Make(SkIntToScalar(5), SkIntToScalar(5)); |
| 32 | SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; |
| 33 | SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; |
| 34 | SkScalar radius = SkIntToScalar(5); |
| 35 | |
reed | 9283d20 | 2016-03-13 13:01:57 -0700 | [diff] [blame] | 36 | SkPaint gradientPaint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 37 | gradientPaint.setShader(SkGradientShader::MakeRadial( |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 38 | center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkTileMode::kClamp)); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 39 | |
| 40 | // Test using the image filter |
| 41 | { |
| 42 | SkPaint paint; |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 43 | paint.setImageFilter(SkImageFilters::Paint(gradientPaint, &ir)); |
| 44 | canvasFilter.drawRect(SkRect::Make(ir), paint); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 45 | } |
| 46 | |
| 47 | // Test using the paint directly |
| 48 | { |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 49 | canvasPaint.drawRect(SkRect::Make(ir), gradientPaint); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | // Assert that both paths yielded the same result |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 53 | for (int y = 0; y < kHeight; ++y) { |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 54 | const SkPMColor* filterPtr = filterResult.getAddr32(0, y); |
| 55 | const SkPMColor* paintPtr = paintResult.getAddr32(0, y); |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 56 | for (int x = 0; x < kWidth; ++x, ++filterPtr, ++paintPtr) { |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 57 | REPORTER_ASSERT(reporter, *filterPtr == *paintPtr); |
| 58 | } |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | static void test_scaled(skiatest::Reporter* reporter) { |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 63 | static const int kWidth = 10; |
| 64 | static const int kHeight = 10; |
| 65 | |
| 66 | SkIRect ir = SkIRect::MakeWH(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 67 | |
| 68 | SkBitmap filterResult, paintResult; |
| 69 | |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 70 | filterResult.allocN32Pixels(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 71 | SkCanvas canvasFilter(filterResult); |
| 72 | canvasFilter.clear(0x00000000); |
| 73 | |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 74 | paintResult.allocN32Pixels(kWidth, kHeight); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 75 | SkCanvas canvasPaint(paintResult); |
| 76 | canvasPaint.clear(0x00000000); |
| 77 | |
| 78 | SkPoint center = SkPoint::Make(SkIntToScalar(5), SkIntToScalar(5)); |
| 79 | SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; |
| 80 | SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; |
| 81 | SkScalar radius = SkIntToScalar(5); |
| 82 | |
reed | 9283d20 | 2016-03-13 13:01:57 -0700 | [diff] [blame] | 83 | SkPaint gradientPaint; |
reed | 1a9b964 | 2016-03-13 14:13:58 -0700 | [diff] [blame] | 84 | gradientPaint.setShader(SkGradientShader::MakeRadial( |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 85 | center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkTileMode::kClamp)); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 86 | |
| 87 | // Test using the image filter |
| 88 | { |
| 89 | SkPaint paint; |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 90 | paint.setImageFilter(SkImageFilters::Paint(gradientPaint, &ir)); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 91 | canvasFilter.scale(SkIntToScalar(2), SkIntToScalar(2)); |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 92 | canvasFilter.drawRect(SkRect::Make(ir), paint); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | // Test using the paint directly |
| 96 | { |
| 97 | canvasPaint.scale(SkIntToScalar(2), SkIntToScalar(2)); |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 98 | canvasPaint.drawRect(SkRect::Make(ir), gradientPaint); |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | // Assert that both paths yielded the same result |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 102 | for (int y = 0; y < kHeight; ++y) { |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 103 | const SkPMColor* filterPtr = filterResult.getAddr32(0, y); |
| 104 | const SkPMColor* paintPtr = paintResult.getAddr32(0, y); |
Michael Ludwig | 55edb50 | 2019-08-05 10:41:10 -0400 | [diff] [blame] | 105 | for (int x = 0; x < kWidth; ++x, ++filterPtr, ++paintPtr) { |
ajuma | 77b6ba3 | 2016-01-08 14:58:35 -0800 | [diff] [blame] | 106 | REPORTER_ASSERT(reporter, *filterPtr == *paintPtr); |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | DEF_TEST(PaintImageFilter, reporter) { |
| 112 | test_unscaled(reporter); |
| 113 | test_scaled(reporter); |
| 114 | } |