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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "SampleCode.h" | 8 #include "SampleCode.h" |
9 #include "SkBlurMask.h" | 9 #include "SkBlurMask.h" |
10 #include "SkBlurMaskFilter.h" | 10 #include "SkBlurMaskFilter.h" |
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171 }; | 171 }; |
172 | 172 |
173 static const GradData gGradData[] = { | 173 static const GradData gGradData[] = { |
174 { 2, gColors, NULL }, | 174 { 2, gColors, NULL }, |
175 { 2, gColors, gPos0 }, | 175 { 2, gColors, gPos0 }, |
176 { 2, gColors, gPos1 }, | 176 { 2, gColors, gPos1 }, |
177 { 5, gColors, NULL }, | 177 { 5, gColors, NULL }, |
178 { 5, gColors, gPos2 } | 178 { 5, gColors, gPos2 } |
179 }; | 179 }; |
180 | 180 |
181 static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, | 181 static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader
::TileMode tm) { |
182 SkShader::TileMode tm, SkUnitMapper* mapper) { | 182 return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCo
unt, tm); |
183 return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, | |
184 data.fCount, tm, mapper); | |
185 } | 183 } |
186 | 184 |
187 static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, | 185 static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader
::TileMode tm) { |
188 SkShader::TileMode tm, SkUnitMapper* mapper) { | |
189 SkPoint center; | 186 SkPoint center; |
190 center.set(SkScalarAve(pts[0].fX, pts[1].fX), | 187 center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
191 SkScalarAve(pts[0].fY, pts[1].fY)); | 188 SkScalarAve(pts[0].fY, pts[1].fY)); |
192 return SkGradientShader::CreateRadial(center, center.fX, data.fColors, | 189 return SkGradientShader::CreateRadial(center, center.fX, data.fColors, |
193 data.fPos, data.fCount, tm, mapper); | 190 data.fPos, data.fCount, tm); |
194 } | 191 } |
195 | 192 |
196 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, | 193 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader:
:TileMode tm) { |
197 SkShader::TileMode tm, SkUnitMapper* mapper) { | |
198 SkPoint center; | 194 SkPoint center; |
199 center.set(SkScalarAve(pts[0].fX, pts[1].fX), | 195 center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
200 SkScalarAve(pts[0].fY, pts[1].fY)); | 196 SkScalarAve(pts[0].fY, pts[1].fY)); |
201 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, | 197 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, dat
a.fPos, data.fCount); |
202 data.fPos, data.fCount, mapper); | |
203 } | 198 } |
204 | 199 |
205 static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, | 200 static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, SkShade
r::TileMode tm) { |
206 SkShader::TileMode tm, SkUnitMapper* mapper) { | |
207 SkPoint center0, center1; | 201 SkPoint center0, center1; |
208 center0.set(SkScalarAve(pts[0].fX, pts[1].fX), | 202 center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
209 SkScalarAve(pts[0].fY, pts[1].fY)); | 203 SkScalarAve(pts[0].fY, pts[1].fY)); |
210 center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), | 204 center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), |
211 SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); | 205 SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); |
212 return SkGradientShader::CreateTwoPointRadial( | 206 return SkGradientShader::CreateTwoPointRadial( |
213 center1, (pts[1].fX - pts[0].f
X) / 7, | 207 center1, (pts[1].fX - pts[0].f
X) / 7, |
214 center0, (pts[1].fX - pts[0].f
X) / 2, | 208 center0, (pts[1].fX - pts[0].f
X) / 2, |
215 data.fColors, data.fPos, data.
fCount, tm, mapper); | 209 data.fColors, data.fPos, data.
fCount, tm); |
216 } | 210 } |
217 | 211 |
218 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, | 212 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkSha
der::TileMode tm); |
219 SkShader::TileMode tm, SkUnitMapper* mapper); | |
220 static const GradMaker gGradMakers[] = { | 213 static const GradMaker gGradMakers[] = { |
221 MakeLinear, MakeRadial, MakeSweep, Make2Radial | 214 MakeLinear, MakeRadial, MakeSweep, Make2Radial |
222 }; | 215 }; |
223 | 216 |
224 static void gradient_slide(SkCanvas* canvas) { | 217 static void gradient_slide(SkCanvas* canvas) { |
225 SkPoint pts[2] = { | 218 SkPoint pts[2] = { |
226 { 0, 0 }, | 219 { 0, 0 }, |
227 { SkIntToScalar(100), SkIntToScalar(100) } | 220 { SkIntToScalar(100), SkIntToScalar(100) } |
228 }; | 221 }; |
229 SkShader::TileMode tm = SkShader::kClamp_TileMode; | 222 SkShader::TileMode tm = SkShader::kClamp_TileMode; |
230 SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; | 223 SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; |
231 SkPaint paint; | 224 SkPaint paint; |
232 paint.setAntiAlias(true); | 225 paint.setAntiAlias(true); |
233 paint.setDither(true); | 226 paint.setDither(true); |
234 | 227 |
235 canvas->translate(SkIntToScalar(20), SkIntToScalar(10)); | 228 canvas->translate(SkIntToScalar(20), SkIntToScalar(10)); |
236 for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { | 229 for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { |
237 canvas->save(); | 230 canvas->save(); |
238 for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { | 231 for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { |
239 SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL); | 232 SkShader* shader = gGradMakers[j](pts, gGradData[i], tm); |
240 paint.setShader(shader); | 233 paint.setShader(shader); |
241 canvas->drawRect(r, paint); | 234 canvas->drawRect(r, paint); |
242 shader->unref(); | 235 shader->unref(); |
243 canvas->translate(0, SkIntToScalar(120)); | 236 canvas->translate(0, SkIntToScalar(120)); |
244 } | 237 } |
245 canvas->restore(); | 238 canvas->restore(); |
246 canvas->translate(SkIntToScalar(120), 0); | 239 canvas->translate(SkIntToScalar(120), 0); |
247 } | 240 } |
248 } | 241 } |
249 | 242 |
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328 size->set(bm.width(), bm.height()); | 321 size->set(bm.width(), bm.height()); |
329 return SkShader::CreateBitmapShader(bm, SkShader::kClamp_TileMode, | 322 return SkShader::CreateBitmapShader(bm, SkShader::kClamp_TileMode, |
330 SkShader::kClamp_TileMode); | 323 SkShader::kClamp_TileMode); |
331 } | 324 } |
332 | 325 |
333 static SkShader* make_shader1(const SkIPoint& size) { | 326 static SkShader* make_shader1(const SkIPoint& size) { |
334 SkPoint pts[] = { { 0, 0 }, | 327 SkPoint pts[] = { { 0, 0 }, |
335 { SkIntToScalar(size.fX), SkIntToScalar(size.fY) } }; | 328 { SkIntToScalar(size.fX), SkIntToScalar(size.fY) } }; |
336 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED }
; | 329 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorRED }
; |
337 return SkGradientShader::CreateLinear(pts, colors, NULL, | 330 return SkGradientShader::CreateLinear(pts, colors, NULL, |
338 SK_ARRAY_COUNT(colors), SkShader::kMir
ror_TileMode, NULL); | 331 SK_ARRAY_COUNT(colors), SkShader::kMir
ror_TileMode); |
339 } | 332 } |
340 | 333 |
341 class Rec { | 334 class Rec { |
342 public: | 335 public: |
343 SkCanvas::VertexMode fMode; | 336 SkCanvas::VertexMode fMode; |
344 int fCount; | 337 int fCount; |
345 SkPoint* fVerts; | 338 SkPoint* fVerts; |
346 SkPoint* fTexs; | 339 SkPoint* fTexs; |
347 | 340 |
348 Rec() : fCount(0), fVerts(NULL), fTexs(NULL) {} | 341 Rec() : fCount(0), fVerts(NULL), fTexs(NULL) {} |
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725 } | 718 } |
726 | 719 |
727 private: | 720 private: |
728 typedef SampleView INHERITED; | 721 typedef SampleView INHERITED; |
729 }; | 722 }; |
730 | 723 |
731 ////////////////////////////////////////////////////////////////////////////// | 724 ////////////////////////////////////////////////////////////////////////////// |
732 | 725 |
733 static SkView* MyFactory() { return new SlideView; } | 726 static SkView* MyFactory() { return new SlideView; } |
734 static SkViewRegister reg(MyFactory); | 727 static SkViewRegister reg(MyFactory); |
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