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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. |
3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> | 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> |
4 * Copyright (C) 2013 Google Inc. All rights reserved. | 4 * Copyright (C) 2013 Google Inc. All rights reserved. |
5 * | 5 * |
6 * Redistribution and use in source and binary forms, with or without | 6 * Redistribution and use in source and binary forms, with or without |
7 * modification, are permitted provided that the following conditions | 7 * modification, are permitted provided that the following conditions |
8 * are met: | 8 * are met: |
9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 */ | 26 */ |
27 | 27 |
28 #include "platform/graphics/Gradient.h" | 28 #include "platform/graphics/Gradient.h" |
29 | 29 |
30 #include "platform/geometry/FloatRect.h" | 30 #include "platform/geometry/FloatRect.h" |
31 #include "platform/graphics/GraphicsContext.h" | 31 #include "platform/graphics/GraphicsContext.h" |
| 32 #include "platform/graphics/paint/PaintShader.h" |
32 #include "platform/graphics/skia/SkiaUtils.h" | 33 #include "platform/graphics/skia/SkiaUtils.h" |
33 #include "third_party/skia/include/core/SkColor.h" | 34 #include "third_party/skia/include/core/SkColor.h" |
34 #include "third_party/skia/include/core/SkMatrix.h" | 35 #include "third_party/skia/include/core/SkMatrix.h" |
35 #include "third_party/skia/include/core/SkShader.h" | 36 #include "third_party/skia/include/core/SkShader.h" |
36 #include "third_party/skia/include/effects/SkGradientShader.h" | 37 #include "third_party/skia/include/effects/SkGradientShader.h" |
37 #include <algorithm> | 38 #include <algorithm> |
38 | 39 |
39 typedef Vector<SkScalar, 8> ColorStopOffsetVector; | 40 typedef Vector<SkScalar, 8> ColorStopOffsetVector; |
40 typedef Vector<SkColor, 8> ColorStopColorVector; | 41 typedef Vector<SkColor, 8> ColorStopColorVector; |
41 | 42 |
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169 } | 170 } |
170 | 171 |
171 // Copy the last stop to 1.0 if needed. See comment above about this float | 172 // Copy the last stop to 1.0 if needed. See comment above about this float |
172 // comparison. | 173 // comparison. |
173 if (count < 1 || (--stop)->stop < 1.0) { | 174 if (count < 1 || (--stop)->stop < 1.0) { |
174 pos[start + count] = WebCoreFloatToSkScalar(1.0); | 175 pos[start + count] = WebCoreFloatToSkScalar(1.0); |
175 colors[start + count] = colors[start + count - 1]; | 176 colors[start + count] = colors[start + count - 1]; |
176 } | 177 } |
177 } | 178 } |
178 | 179 |
179 sk_sp<SkShader> Gradient::createShader(const SkMatrix& localMatrix) { | 180 sk_sp<PaintShader> Gradient::createShader(const SkMatrix& localMatrix) { |
180 sortStopsIfNecessary(); | 181 sortStopsIfNecessary(); |
181 ASSERT(m_stopsSorted); | 182 ASSERT(m_stopsSorted); |
182 | 183 |
183 size_t countUsed = totalStopsNeeded(m_stops.data(), m_stops.size()); | 184 size_t countUsed = totalStopsNeeded(m_stops.data(), m_stops.size()); |
184 ASSERT(countUsed >= 2); | 185 ASSERT(countUsed >= 2); |
185 ASSERT(countUsed >= m_stops.size()); | 186 ASSERT(countUsed >= m_stops.size()); |
186 | 187 |
187 ColorStopOffsetVector pos(countUsed); | 188 ColorStopOffsetVector pos(countUsed); |
188 ColorStopColorVector colors(countUsed); | 189 ColorStopColorVector colors(countUsed); |
189 fillStops(m_stops.data(), m_stops.size(), pos, colors); | 190 fillStops(m_stops.data(), m_stops.size(), pos, colors); |
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239 shader = SkGradientShader::MakeLinear( | 240 shader = SkGradientShader::MakeLinear( |
240 pts, colors.data(), pos.data(), static_cast<int>(countUsed), tile, | 241 pts, colors.data(), pos.data(), static_cast<int>(countUsed), tile, |
241 shouldDrawInPMColorSpace, &localMatrix); | 242 shouldDrawInPMColorSpace, &localMatrix); |
242 } | 243 } |
243 | 244 |
244 if (!shader) { | 245 if (!shader) { |
245 // use last color, since our "geometry" was degenerate (e.g. radius==0) | 246 // use last color, since our "geometry" was degenerate (e.g. radius==0) |
246 shader = SkShader::MakeColorShader(colors[countUsed - 1]); | 247 shader = SkShader::MakeColorShader(colors[countUsed - 1]); |
247 } | 248 } |
248 | 249 |
249 return shader; | 250 return WrapSkShader(shader); |
250 } | 251 } |
251 | 252 |
252 void Gradient::applyToPaint(SkPaint& paint, const SkMatrix& localMatrix) { | 253 void Gradient::applyToPaint(PaintFlags& paint, const SkMatrix& localMatrix) { |
253 if (!m_cachedShader || localMatrix != m_cachedShader->getLocalMatrix()) | 254 if (!m_cachedShader || localMatrix != m_cachedShader->getLocalMatrix()) |
254 m_cachedShader = createShader(localMatrix); | 255 m_cachedShader = createShader(localMatrix); |
255 | 256 |
256 paint.setShader(m_cachedShader); | 257 paint.setShader(m_cachedShader); |
257 | 258 |
258 // Legacy behavior: gradients are always dithered. | 259 // Legacy behavior: gradients are always dithered. |
259 paint.setDither(true); | 260 paint.setDither(true); |
260 } | 261 } |
261 | 262 |
262 } // namespace blink | 263 } // namespace blink |
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