sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 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 | */ |
tfarina@chromium.org | e4fafb1 | 2013-12-12 21:11:12 +0000 | [diff] [blame] | 7 | |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 8 | #include "SkCanvas.h" |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 9 | #include "SkGradientShader.h" |
tfarina@chromium.org | 8f6884a | 2014-01-24 20:56:26 +0000 | [diff] [blame] | 10 | #include "SkRectShaderImageFilter.h" |
| 11 | #include "SkShader.h" |
| 12 | #include "Test.h" |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 13 | |
tfarina@chromium.org | e4fafb1 | 2013-12-12 21:11:12 +0000 | [diff] [blame] | 14 | DEF_TEST(ShaderImageFilter, reporter) { |
senorblanco@chromium.org | 3c8fb51 | 2013-02-21 17:10:44 +0000 | [diff] [blame] | 15 | int w = 10, h = 10; |
| 16 | SkRect r = SkRect::MakeWH(SkIntToScalar(w), SkIntToScalar(h)); // Make small 10x10 gradient |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 17 | |
| 18 | SkBitmap filterResult, shaderResult; |
| 19 | |
mike@reedtribe.org | deee496 | 2014-02-13 14:41:43 +0000 | [diff] [blame] | 20 | filterResult.allocN32Pixels(w, h); |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 21 | SkCanvas canvasFilter(filterResult); |
| 22 | canvasFilter.clear(0x00000000); |
| 23 | |
mike@reedtribe.org | deee496 | 2014-02-13 14:41:43 +0000 | [diff] [blame] | 24 | shaderResult.allocN32Pixels(w, h); |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 25 | SkCanvas canvasShader(shaderResult); |
| 26 | canvasShader.clear(0x00000000); |
| 27 | |
| 28 | SkPoint center = SkPoint::Make(SkIntToScalar(5), SkIntToScalar(5)); |
| 29 | SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; |
| 30 | SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; |
| 31 | SkScalar radius = SkIntToScalar(5); |
| 32 | |
| 33 | // Test using the image filter |
| 34 | { |
| 35 | SkShader* s = SkGradientShader::CreateRadial( |
| 36 | center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode); |
| 37 | SkPaint paint; |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 38 | SkImageFilter::CropRect cr(r); |
| 39 | paint.setImageFilter(SkRectShaderImageFilter::Create(s, &cr))->unref(); |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 40 | canvasFilter.drawRect(r, paint); |
| 41 | s->unref(); |
| 42 | } |
| 43 | |
| 44 | // Test using the shader directly |
| 45 | { |
| 46 | SkShader* s = SkGradientShader::CreateRadial( |
| 47 | center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode); |
| 48 | SkPaint paint; |
| 49 | paint.setShader(s)->unref(); |
| 50 | canvasShader.drawRect(r, paint); |
| 51 | } |
| 52 | |
| 53 | // Assert that both paths yielded the same result |
| 54 | for (int y = 0; y < r.height(); ++y) { |
| 55 | const SkPMColor* filterPtr = filterResult.getAddr32(0, y); |
| 56 | const SkPMColor* shaderPtr = shaderResult.getAddr32(0, y); |
| 57 | for (int x = 0; x < r.width(); ++x, ++filterPtr, ++shaderPtr) { |
| 58 | REPORTER_ASSERT(reporter, *filterPtr == *shaderPtr); |
| 59 | } |
| 60 | } |
| 61 | } |