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| 1 /* |
| 2 * Copyright 2015 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 */ |
| 7 |
| 8 #include "SkAndroidSDKCanvas.h" |
| 9 |
| 10 #include "SkColorFilter.h" |
| 11 #include "SkPathEffect.h" |
| 12 #include "SkShader.h" |
| 13 |
| 14 namespace { |
| 15 |
| 16 /** Discard SkShaders not exposed by the Android Java API. */ |
| 17 |
| 18 void CheckShader(SkPaint* paint) { |
| 19 SkShader* shader = paint->getShader(); |
| 20 if (!shader) { |
| 21 return; |
| 22 } |
| 23 |
| 24 if (shader->asABitmap(NULL, NULL, NULL) == SkShader::kDefault_BitmapType) { |
| 25 return; |
| 26 } |
| 27 if (shader->asACompose(NULL)) { |
| 28 return; |
| 29 } |
| 30 SkShader::GradientType gtype = shader->asAGradient(NULL); |
| 31 if (gtype == SkShader::kLinear_GradientType || |
| 32 gtype == SkShader::kRadial_GradientType || |
| 33 gtype == SkShader::kSweep_GradientType) { |
| 34 return; |
| 35 } |
| 36 paint->setShader(NULL); |
| 37 } |
| 38 |
| 39 void Filter(SkPaint* paint) { |
| 40 |
| 41 uint32_t flags = paint->getFlags(); |
| 42 flags &= ~SkPaint::kLCDRenderText_Flag; |
| 43 paint->setFlags(flags); |
| 44 |
| 45 // Android doesn't support Xfermodes above kLighten_Mode |
| 46 SkXfermode::Mode mode; |
| 47 SkXfermode::AsMode(paint->getXfermode(), &mode); |
| 48 if (mode > SkXfermode::kLighten_Mode) { |
| 49 paint->setXfermode(NULL); |
| 50 } |
| 51 |
| 52 // Force bilinear scaling or none |
| 53 if (paint->getFilterQuality() != kNone_SkFilterQuality) { |
| 54 paint->setFilterQuality(kLow_SkFilterQuality); |
| 55 } |
| 56 |
| 57 CheckShader(paint); |
| 58 |
| 59 // Android SDK only supports mode & matrix color filters |
| 60 // (and, again, no modes above kLighten_Mode). |
| 61 SkColorFilter* cf = paint->getColorFilter(); |
| 62 if (cf) { |
| 63 SkColor color; |
| 64 SkXfermode::Mode mode; |
| 65 SkScalar srcColorMatrix[20]; |
| 66 bool isMode = cf->asColorMode(&color, &mode); |
| 67 if (isMode && mode > SkXfermode::kLighten_Mode) { |
| 68 paint->setColorFilter( |
| 69 SkColorFilter::CreateModeFilter(color, SkXfermode::kSrcOver_Mode
)); |
| 70 } else if (!isMode && !cf->asColorMatrix(srcColorMatrix)) { |
| 71 paint->setColorFilter(NULL); |
| 72 } |
| 73 } |
| 74 |
| 75 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| 76 SkPathEffect* pe = paint->getPathEffect(); |
| 77 if (pe && !pe->exposedInAndroidJavaAPI()) { |
| 78 paint->setPathEffect(NULL); |
| 79 } |
| 80 #endif |
| 81 |
| 82 // TODO: Android doesn't support all the flags that can be passed to |
| 83 // blur filters; we need plumbing to get them out. |
| 84 |
| 85 paint->setImageFilter(NULL); |
| 86 paint->setLooper(NULL); |
| 87 }; |
| 88 |
| 89 } // namespace |
| 90 |
| 91 #define FILTER(p) \ |
| 92 SkPaint filteredPaint(p); \ |
| 93 Filter(&filteredPaint); |
| 94 |
| 95 #define FILTER_PTR(p) \ |
| 96 SkTLazy<SkPaint> lazyPaint; \ |
| 97 SkPaint* filteredPaint = (SkPaint*) p; \ |
| 98 if (p) { \ |
| 99 filteredPaint = lazyPaint.set(*p); \ |
| 100 Filter(filteredPaint); \ |
| 101 } |
| 102 |
| 103 |
| 104 SkAndroidSDKCanvas::SkAndroidSDKCanvas() : fProxyTarget(NULL) { } |
| 105 |
| 106 void SkAndroidSDKCanvas::reset(SkCanvas* newTarget) { fProxyTarget = newTarget;
} |
| 107 |
| 108 void SkAndroidSDKCanvas::onDrawPaint(const SkPaint& paint) { |
| 109 FILTER(paint); |
| 110 fProxyTarget->drawPaint(filteredPaint); |
| 111 } |
| 112 void SkAndroidSDKCanvas::onDrawPoints(PointMode pMode, |
| 113 size_t count, |
| 114 const SkPoint pts[], |
| 115 const SkPaint& paint) { |
| 116 FILTER(paint); |
| 117 fProxyTarget->drawPoints(pMode, count, pts, filteredPaint); |
| 118 } |
| 119 void SkAndroidSDKCanvas::onDrawOval(const SkRect& r, const SkPaint& paint) { |
| 120 FILTER(paint); |
| 121 fProxyTarget->drawOval(r, filteredPaint); |
| 122 } |
| 123 void SkAndroidSDKCanvas::onDrawRect(const SkRect& r, const SkPaint& paint) { |
| 124 FILTER(paint); |
| 125 fProxyTarget->drawRect(r, filteredPaint); |
| 126 } |
| 127 void SkAndroidSDKCanvas::onDrawRRect(const SkRRect& r, const SkPaint& paint) { |
| 128 FILTER(paint); |
| 129 fProxyTarget->drawRRect(r, filteredPaint); |
| 130 } |
| 131 void SkAndroidSDKCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { |
| 132 FILTER(paint); |
| 133 fProxyTarget->drawPath(path, filteredPaint); |
| 134 } |
| 135 void SkAndroidSDKCanvas::onDrawBitmap(const SkBitmap& bitmap, |
| 136 SkScalar left, |
| 137 SkScalar top, |
| 138 const SkPaint* paint) { |
| 139 FILTER_PTR(paint); |
| 140 fProxyTarget->drawBitmap(bitmap, left, top, filteredPaint); |
| 141 } |
| 142 void SkAndroidSDKCanvas::onDrawBitmapRect(const SkBitmap& bitmap, |
| 143 const SkRect* src, |
| 144 const SkRect& dst, |
| 145 const SkPaint* paint, |
| 146 DrawBitmapRectFlags flags) { |
| 147 FILTER_PTR(paint); |
| 148 fProxyTarget->drawBitmapRectToRect(bitmap, src, dst, filteredPaint, flags); |
| 149 } |
| 150 void SkAndroidSDKCanvas::onDrawBitmapNine(const SkBitmap& bitmap, |
| 151 const SkIRect& center, |
| 152 const SkRect& dst, |
| 153 const SkPaint* paint) { |
| 154 FILTER_PTR(paint); |
| 155 fProxyTarget->drawBitmapNine(bitmap, center, dst, filteredPaint); |
| 156 } |
| 157 void SkAndroidSDKCanvas::onDrawSprite(const SkBitmap& bitmap, |
| 158 int left, |
| 159 int top, |
| 160 const SkPaint* paint) { |
| 161 FILTER_PTR(paint); |
| 162 fProxyTarget->drawSprite(bitmap, left, top, filteredPaint); |
| 163 } |
| 164 void SkAndroidSDKCanvas::onDrawVertices(VertexMode vMode, |
| 165 int vertexCount, |
| 166 const SkPoint vertices[], |
| 167 const SkPoint texs[], const SkColor colors[], SkXfermode* xM
ode, |
| 168 const uint16_t indices[], int indexCount, |
| 169 const SkPaint& paint) { |
| 170 FILTER(paint); |
| 171 fProxyTarget->drawVertices(vMode, vertexCount, vertices, texs, colors, |
| 172 xMode, indices, indexCount, filteredPaint); |
| 173 } |
| 174 |
| 175 void SkAndroidSDKCanvas::onDrawDRRect(const SkRRect& outer, |
| 176 const SkRRect& inner, |
| 177 const SkPaint& paint) { |
| 178 FILTER(paint); |
| 179 fProxyTarget->drawDRRect(outer, inner, filteredPaint); |
| 180 } |
| 181 |
| 182 void SkAndroidSDKCanvas::onDrawText(const void* text, |
| 183 size_t byteLength, |
| 184 SkScalar x, |
| 185 SkScalar y, |
| 186 const SkPaint& paint) { |
| 187 FILTER(paint); |
| 188 fProxyTarget->drawText(text, byteLength, x, y, filteredPaint); |
| 189 } |
| 190 void SkAndroidSDKCanvas::onDrawPosText(const void* text, |
| 191 size_t byteLength, |
| 192 const SkPoint pos[], |
| 193 const SkPaint& paint) { |
| 194 FILTER(paint); |
| 195 fProxyTarget->drawPosText(text, byteLength, pos, filteredPaint); |
| 196 } |
| 197 void SkAndroidSDKCanvas::onDrawPosTextH(const void* text, |
| 198 size_t byteLength, |
| 199 const SkScalar xpos[], |
| 200 SkScalar constY, |
| 201 const SkPaint& paint) { |
| 202 FILTER(paint); |
| 203 fProxyTarget->drawPosTextH(text, byteLength, xpos, constY, filteredPaint); |
| 204 } |
| 205 void SkAndroidSDKCanvas::onDrawTextOnPath(const void* text, |
| 206 size_t byteLength, |
| 207 const SkPath& path, |
| 208 const SkMatrix* matrix, |
| 209 const SkPaint& paint) { |
| 210 FILTER(paint); |
| 211 fProxyTarget->drawTextOnPath(text, byteLength, path, matrix, filteredPaint); |
| 212 } |
| 213 void SkAndroidSDKCanvas::onDrawTextBlob(const SkTextBlob* blob, |
| 214 SkScalar x, |
| 215 SkScalar y, |
| 216 const SkPaint& paint) { |
| 217 FILTER(paint); |
| 218 fProxyTarget->drawTextBlob(blob, x, y, filteredPaint); |
| 219 } |
| 220 |
| 221 void SkAndroidSDKCanvas::onDrawPatch(const SkPoint cubics[12], |
| 222 const SkColor colors[4], |
| 223 const SkPoint texCoords[4], |
| 224 SkXfermode* xmode, |
| 225 const SkPaint& paint) { |
| 226 FILTER(paint); |
| 227 fProxyTarget->drawPatch(cubics, colors, texCoords, xmode, filteredPaint); |
| 228 } |
| 229 |
| 230 |
| 231 void SkAndroidSDKCanvas::onDrawImage(const SkImage* image, |
| 232 SkScalar x, |
| 233 SkScalar y, |
| 234 const SkPaint* paint) { |
| 235 FILTER_PTR(paint); |
| 236 fProxyTarget->drawImage(image, x, y, filteredPaint); |
| 237 } |
| 238 |
| 239 void SkAndroidSDKCanvas::onDrawImageRect(const SkImage* image, |
| 240 const SkRect* in, |
| 241 const SkRect& out, |
| 242 const SkPaint* paint) { |
| 243 FILTER_PTR(paint); |
| 244 fProxyTarget->drawImageRect(image, in, out, filteredPaint); |
| 245 } |
| 246 |
| 247 void SkAndroidSDKCanvas::onDrawPicture(const SkPicture* picture, |
| 248 const SkMatrix* matrix, |
| 249 const SkPaint* paint) { |
| 250 FILTER_PTR(paint); |
| 251 fProxyTarget->drawPicture(picture, matrix, filteredPaint); |
| 252 } |
| 253 |
| 254 void SkAndroidSDKCanvas::onDrawDrawable(SkDrawable* drawable) { |
| 255 fProxyTarget->drawDrawable(drawable); |
| 256 } |
| 257 |
| 258 SkISize SkAndroidSDKCanvas::getBaseLayerSize() const { |
| 259 return fProxyTarget->getBaseLayerSize(); |
| 260 } |
| 261 bool SkAndroidSDKCanvas::getClipBounds(SkRect* rect) const { |
| 262 return fProxyTarget->getClipBounds(rect); |
| 263 } |
| 264 bool SkAndroidSDKCanvas::getClipDeviceBounds(SkIRect* rect) const { |
| 265 return fProxyTarget->getClipDeviceBounds(rect); |
| 266 } |
| 267 |
| 268 bool SkAndroidSDKCanvas::isClipEmpty() const { return fProxyTarget->isClipEmpty(
); } |
| 269 bool SkAndroidSDKCanvas::isClipRect() const { return fProxyTarget->isClipRect();
} |
| 270 |
| 271 SkSurface* SkAndroidSDKCanvas::onNewSurface(const SkImageInfo& info, |
| 272 const SkSurfaceProps& props
) { |
| 273 return fProxyTarget->newSurface(info, &props); |
| 274 } |
| 275 |
| 276 const void* SkAndroidSDKCanvas::onPeekPixels(SkImageInfo* info, size_t* data) { |
| 277 return fProxyTarget->peekPixels(info, data); |
| 278 } |
| 279 |
| 280 void* SkAndroidSDKCanvas::onAccessTopLayerPixels(SkImageInfo* info, size_t* data
) { |
| 281 return fProxyTarget->accessTopLayerPixels(info, data); |
| 282 } |
| 283 |
| 284 void SkAndroidSDKCanvas::willSave() { fProxyTarget->save(); } |
| 285 void SkAndroidSDKCanvas::willRestore() { fProxyTarget->restore(); } |
| 286 void SkAndroidSDKCanvas::didRestore() { } |
| 287 void SkAndroidSDKCanvas::didConcat(const SkMatrix& m) { |
| 288 fProxyTarget->concat(m); |
| 289 } |
| 290 void SkAndroidSDKCanvas::didSetMatrix(const SkMatrix& m) { fProxyTarget->setMatr
ix(m); } |
| 291 |
| 292 void SkAndroidSDKCanvas::onClipRect(const SkRect& rect, |
| 293 SkRegion::Op op, |
| 294 ClipEdgeStyle style) { |
| 295 fProxyTarget->clipRect(rect, op, style); |
| 296 } |
| 297 |
| 298 void SkAndroidSDKCanvas::onClipRRect(const SkRRect& rrect, |
| 299 SkRegion::Op op, |
| 300 ClipEdgeStyle style) { |
| 301 fProxyTarget->clipRRect(rrect, op, style); |
| 302 } |
| 303 |
| 304 void SkAndroidSDKCanvas::onClipPath(const SkPath& path, |
| 305 SkRegion::Op op, |
| 306 ClipEdgeStyle style) { |
| 307 fProxyTarget->clipPath(path, op, style); |
| 308 } |
| 309 |
| 310 void SkAndroidSDKCanvas::onClipRegion(const SkRegion& region, SkRegion::Op op) { |
| 311 fProxyTarget->clipRegion(region, op); |
| 312 } |
| 313 |
| 314 void SkAndroidSDKCanvas::onDiscard() { fProxyTarget->discard(); } |
| 315 |
| 316 |
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