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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkCanvas.h" | 8 #include "SkCanvas.h" |
9 #include "SkColorPriv.h" | |
10 #include "SkColorShader.h" | 9 #include "SkColorShader.h" |
11 #include "SkGradientShader.h" | 10 #include "SkGradientShader.h" |
12 #include "SkShader.h" | 11 #include "SkShader.h" |
13 #include "SkSurface.h" | 12 #include "SkSurface.h" |
14 #include "SkTemplates.h" | 13 #include "SkTemplates.h" |
15 #include "Test.h" | 14 #include "Test.h" |
16 | 15 |
17 // https://code.google.com/p/chromium/issues/detail?id=448299 | 16 // https://code.google.com/p/chromium/issues/detail?id=448299 |
18 // Giant (inverse) matrix causes overflow when converting/computing using 32.32 | 17 // Giant (inverse) matrix causes overflow when converting/computing using 32.32 |
19 // Before the fix, we would assert (and then crash). | 18 // Before the fix, we would assert (and then crash). |
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227 | 226 |
228 SkAutoTUnref<SkShader> gradient( | 227 SkAutoTUnref<SkShader> gradient( |
229 SkGradientShader::CreateLinear(pts, colors, pos, 4, SkShader:
:kClamp_TileMode)); | 228 SkGradientShader::CreateLinear(pts, colors, pos, 4, SkShader:
:kClamp_TileMode)); |
230 | 229 |
231 SkPaint paint; | 230 SkPaint paint; |
232 paint.setShader(gradient); | 231 paint.setShader(gradient); |
233 SkRect r = {0, 83, 1254, 620}; | 232 SkRect r = {0, 83, 1254, 620}; |
234 surface->getCanvas()->drawRect(r, paint); | 233 surface->getCanvas()->drawRect(r, paint); |
235 } | 234 } |
236 | 235 |
237 // https://bugs.chromium.org/p/skia/issues/detail?id=5023 | |
238 // We should still shade pixels for which the radius is exactly 0. | |
239 static void test_two_point_conical_zero_radius(skiatest::Reporter* reporter) { | |
240 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(5, 5)); | |
241 surface->getCanvas()->clear(SK_ColorRED); | |
242 | |
243 const SkColor colors[] = { SK_ColorGREEN, SK_ColorBLUE }; | |
244 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateTwoPointConical( | |
245 SkPoint::Make(2.5f, 2.5f), 0, | |
246 SkPoint::Make(3.0f, 3.0f), 10, | |
247 colors, nullptr, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode)); | |
248 SkPaint p; | |
249 p.setShader(shader); | |
250 surface->getCanvas()->drawPaint(p); | |
251 | |
252 // r == 0 for the center pixel. | |
253 // verify that we draw it (no red bleed) | |
254 SkPMColor centerPMColor; | |
255 surface->readPixels(SkImageInfo::MakeN32Premul(1, 1), ¢erPMColor, sizeof
(SkPMColor), 2, 2); | |
256 REPORTER_ASSERT(reporter, SkGetPackedR32(centerPMColor) == 0); | |
257 } | |
258 | |
259 DEF_TEST(Gradient, reporter) { | 236 DEF_TEST(Gradient, reporter) { |
260 TestGradientShaders(reporter); | 237 TestGradientShaders(reporter); |
261 TestConstantGradient(reporter); | 238 TestConstantGradient(reporter); |
262 test_big_grad(reporter); | 239 test_big_grad(reporter); |
263 test_nearly_vertical(reporter); | 240 test_nearly_vertical(reporter); |
264 test_linear_fuzz(reporter); | 241 test_linear_fuzz(reporter); |
265 test_two_point_conical_zero_radius(reporter); | |
266 } | 242 } |
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