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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" | 9 #include "SkColorPriv.h" |
10 #include "SkColorShader.h" | 10 #include "SkColorShader.h" |
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177 sweep_gradproc, | 177 sweep_gradproc, |
178 conical_gradproc, | 178 conical_gradproc, |
179 }; | 179 }; |
180 | 180 |
181 for (size_t i = 0; i < SK_ARRAY_COUNT(gProcs); ++i) { | 181 for (size_t i = 0; i < SK_ARRAY_COUNT(gProcs); ++i) { |
182 gProcs[i](reporter, rec); | 182 gProcs[i](reporter, rec); |
183 } | 183 } |
184 } | 184 } |
185 | 185 |
186 static void test_nearly_vertical(skiatest::Reporter* reporter) { | 186 static void test_nearly_vertical(skiatest::Reporter* reporter) { |
187 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(200, 200)); | 187 auto surface(SkSurface::MakeRasterN32Premul(200, 200)); |
188 | 188 |
189 const SkPoint pts[] = {{ 100, 50 }, { 100.0001f, 50000 }}; | 189 const SkPoint pts[] = {{ 100, 50 }, { 100.0001f, 50000 }}; |
190 const SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE }; | 190 const SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE }; |
191 const SkScalar pos[] = { 0, 1 }; | 191 const SkScalar pos[] = { 0, 1 }; |
192 SkPaint paint; | 192 SkPaint paint; |
193 paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, 2, SkShader::
kClamp_TileMode)); | 193 paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, 2, SkShader::
kClamp_TileMode)); |
194 | 194 |
195 surface->getCanvas()->drawPaint(paint); | 195 surface->getCanvas()->drawPaint(paint); |
196 } | 196 } |
197 | 197 |
198 // A linear gradient interval can, due to numerical imprecision (likely in the d
ivide) | 198 // A linear gradient interval can, due to numerical imprecision (likely in the d
ivide) |
199 // finish an interval with the final fx not landing outside of [p0...p1]. | 199 // finish an interval with the final fx not landing outside of [p0...p1]. |
200 // The old code had an assert which this test triggered. | 200 // The old code had an assert which this test triggered. |
201 // We now explicitly clamp the resulting fx value. | 201 // We now explicitly clamp the resulting fx value. |
202 static void test_linear_fuzz(skiatest::Reporter* reporter) { | 202 static void test_linear_fuzz(skiatest::Reporter* reporter) { |
203 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(1300, 630)); | 203 auto surface(SkSurface::MakeRasterN32Premul(1300, 630)); |
204 | 204 |
205 const SkPoint pts[] = {{ 179.5f, -179.5f }, { 1074.5f, 715.5f }}; | 205 const SkPoint pts[] = {{ 179.5f, -179.5f }, { 1074.5f, 715.5f }}; |
206 const SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorBLACK, SK_C
olorWHITE }; | 206 const SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorBLACK, SK_C
olorWHITE }; |
207 const SkScalar pos[] = {0, 0.200000003f, 0.800000012f, 1 }; | 207 const SkScalar pos[] = {0, 0.200000003f, 0.800000012f, 1 }; |
208 | 208 |
209 SkPaint paint; | 209 SkPaint paint; |
210 paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, 4, SkShader::
kClamp_TileMode)); | 210 paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, 4, SkShader::
kClamp_TileMode)); |
211 | 211 |
212 SkRect r = {0, 83, 1254, 620}; | 212 SkRect r = {0, 83, 1254, 620}; |
213 surface->getCanvas()->drawRect(r, paint); | 213 surface->getCanvas()->drawRect(r, paint); |
214 } | 214 } |
215 | 215 |
216 // https://bugs.chromium.org/p/skia/issues/detail?id=5023 | 216 // https://bugs.chromium.org/p/skia/issues/detail?id=5023 |
217 // We should still shade pixels for which the radius is exactly 0. | 217 // We should still shade pixels for which the radius is exactly 0. |
218 static void test_two_point_conical_zero_radius(skiatest::Reporter* reporter) { | 218 static void test_two_point_conical_zero_radius(skiatest::Reporter* reporter) { |
219 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(5, 5)); | 219 auto surface(SkSurface::MakeRasterN32Premul(5, 5)); |
220 surface->getCanvas()->clear(SK_ColorRED); | 220 surface->getCanvas()->clear(SK_ColorRED); |
221 | 221 |
222 const SkColor colors[] = { SK_ColorGREEN, SK_ColorBLUE }; | 222 const SkColor colors[] = { SK_ColorGREEN, SK_ColorBLUE }; |
223 SkPaint p; | 223 SkPaint p; |
224 p.setShader(SkGradientShader::MakeTwoPointConical( | 224 p.setShader(SkGradientShader::MakeTwoPointConical( |
225 SkPoint::Make(2.5f, 2.5f), 0, | 225 SkPoint::Make(2.5f, 2.5f), 0, |
226 SkPoint::Make(3.0f, 3.0f), 10, | 226 SkPoint::Make(3.0f, 3.0f), 10, |
227 colors, nullptr, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode)); | 227 colors, nullptr, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode)); |
228 surface->getCanvas()->drawPaint(p); | 228 surface->getCanvas()->drawPaint(p); |
229 | 229 |
230 // r == 0 for the center pixel. | 230 // r == 0 for the center pixel. |
231 // verify that we draw it (no red bleed) | 231 // verify that we draw it (no red bleed) |
232 SkPMColor centerPMColor; | 232 SkPMColor centerPMColor; |
233 surface->readPixels(SkImageInfo::MakeN32Premul(1, 1), ¢erPMColor, sizeof
(SkPMColor), 2, 2); | 233 surface->readPixels(SkImageInfo::MakeN32Premul(1, 1), ¢erPMColor, sizeof
(SkPMColor), 2, 2); |
234 REPORTER_ASSERT(reporter, SkGetPackedR32(centerPMColor) == 0); | 234 REPORTER_ASSERT(reporter, SkGetPackedR32(centerPMColor) == 0); |
235 } | 235 } |
236 | 236 |
237 DEF_TEST(Gradient, reporter) { | 237 DEF_TEST(Gradient, reporter) { |
238 TestGradientShaders(reporter); | 238 TestGradientShaders(reporter); |
239 TestConstantGradient(reporter); | 239 TestConstantGradient(reporter); |
240 test_big_grad(reporter); | 240 test_big_grad(reporter); |
241 test_nearly_vertical(reporter); | 241 test_nearly_vertical(reporter); |
242 test_linear_fuzz(reporter); | 242 test_linear_fuzz(reporter); |
243 test_two_point_conical_zero_radius(reporter); | 243 test_two_point_conical_zero_radius(reporter); |
244 } | 244 } |
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