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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CC_PAINT_PAINT_OP_BUFFER_H_ | |
| 6 #define CC_PAINT_PAINT_OP_BUFFER_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 #include "cc/paint/paint_canvas.h" | |
| 12 #include "cc/paint/paint_export.h" | |
| 13 #include "cc/paint/paint_flags.h" | |
| 14 #include "third_party/skia/include/core/SkPicture.h" | |
| 15 #include "third_party/skia/include/core/SkRect.h" | |
| 16 #include "third_party/skia/include/core/SkTextBlob.h" | |
| 17 | |
| 18 // PaintOpBuffer is a reimplementation of SkLiteDL. | |
| 19 // See: third_party/skia/src/core/SkLiteDL.h. | |
| 20 | |
| 21 namespace cc { | |
| 22 | |
| 23 class DisplayItemList; | |
| 24 | |
| 25 class ThreadsafeMatrix : public SkMatrix { | |
| 26 public: | |
| 27 explicit ThreadsafeMatrix(const SkMatrix& matrix) : SkMatrix(matrix) { | |
| 28 (void)getType(); | |
| 29 } | |
| 30 }; | |
| 31 | |
| 32 class ThreadsafePath : public SkPath { | |
| 33 public: | |
| 34 explicit ThreadsafePath(const SkPath& path) : SkPath(path) { | |
| 35 updateBoundsCache(); | |
| 36 } | |
| 37 }; | |
| 38 | |
| 39 enum class PaintOpType : uint8_t { | |
| 40 Annotate, | |
| 41 ClipPath, | |
| 42 ClipRect, | |
| 43 ClipRRect, | |
| 44 Concat, | |
| 45 DrawArc, | |
| 46 DrawCircle, | |
| 47 DrawColor, | |
| 48 DrawDisplayItemList, | |
| 49 DrawDRRect, | |
| 50 DrawImage, | |
| 51 DrawImageRect, | |
| 52 DrawIRect, | |
| 53 DrawLine, | |
| 54 DrawOval, | |
| 55 DrawPath, | |
| 56 DrawPosText, | |
| 57 DrawRecord, | |
| 58 DrawRect, | |
| 59 DrawRRect, | |
| 60 DrawText, | |
| 61 DrawTextBlob, | |
| 62 Noop, | |
| 63 Restore, | |
| 64 Rotate, | |
| 65 Save, | |
| 66 SaveLayer, | |
| 67 SaveLayerAlpha, | |
| 68 Scale, | |
| 69 SetMatrix, | |
| 70 Translate, | |
| 71 LastPaintOpType = Translate, | |
| 72 }; | |
| 73 | |
| 74 struct CC_PAINT_EXPORT PaintOp { | |
| 75 uint32_t type : 8; | |
| 76 uint32_t skip : 24; | |
| 77 | |
| 78 PaintOpType GetType() const { return static_cast<PaintOpType>(type); } | |
| 79 | |
| 80 void Raster(SkCanvas* canvas, const SkMatrix& original_ctm) const; | |
| 81 bool IsDrawOp() const; | |
| 82 | |
| 83 // Only valid for draw ops. | |
| 84 void RasterWithAlpha(SkCanvas* canvas, uint8_t alpha) const; | |
| 85 | |
| 86 int CountSlowPaths() const { return 0; } | |
| 87 | |
| 88 // Returns the number of bytes used by this op in referenced sub records | |
| 89 // and display lists. This doesn't count other objects like paths or blobs. | |
| 90 size_t AdditionalBytesUsed() const { return 0; } | |
| 91 | |
| 92 static constexpr bool kIsDrawOp = false; | |
| 93 // If an op has |kHasPaintFlags| set to true, it must: | |
| 94 // (1) Provide a PaintFlags member called |flags| | |
| 95 // (2) Provide a RasterWithFlags function instead of a Raster function. | |
| 96 static constexpr bool kHasPaintFlags = false; | |
| 97 static SkRect kUnsetRect; | |
| 98 }; | |
| 99 | |
| 100 struct PaintOpWithData : PaintOp { | |
| 101 // Having data is just a helper for ops that have a varying amount of data and | |
| 102 // want a way to store that inline. This is for ops that pass in a | |
| 103 // void* and a length. | |
| 104 explicit PaintOpWithData(size_t bytes) : bytes(bytes) {} | |
| 105 | |
| 106 // Get data out by calling paint_op_data. This can't be part of the class | |
| 107 // because it needs to know the size of the derived type. | |
| 108 size_t bytes; | |
| 109 }; | |
| 110 | |
| 111 template <typename T> | |
| 112 const void* paint_op_data(const T* op) { | |
| 113 static_assert(std::is_convertible<T, PaintOpWithData>::value, | |
| 114 "T is not a PaintOpWithData"); | |
| 115 // Arbitrary data for a PaintOp is stored after the PaintOp itself | |
| 116 // in the PaintOpBuffer. Therefore, to access this data, it's | |
| 117 // pointer math to increment past the size of T. Accessing the | |
| 118 // next op in the buffer is ((char*)op) + op->skip, with the data | |
| 119 // fitting between. | |
| 120 return op + 1; | |
| 121 } | |
| 122 | |
| 123 template <typename T> | |
| 124 void* paint_op_data(T* op) { | |
| 125 static_assert(std::is_convertible<T, PaintOpWithData>::value, | |
| 126 "T is not a PaintOpWithData"); | |
| 127 return op + 1; | |
| 128 } | |
| 129 | |
| 130 struct PaintOpWithDataArrayBase : PaintOpWithData { | |
| 131 // Helper class for static asserts in push functions. | |
| 132 using PaintOpWithData::PaintOpWithData; | |
| 133 }; | |
| 134 | |
| 135 template <typename T> | |
| 136 struct PaintOpWithDataArray : PaintOpWithDataArrayBase { | |
| 137 // Paint op that has a T[count] and a char[bytes]. | |
| 138 PaintOpWithDataArray(size_t bytes, size_t count) | |
| 139 : PaintOpWithDataArrayBase(bytes), count(count) {} | |
| 140 // Use paint_op_array to get array data. | |
| 141 | |
| 142 size_t count; | |
| 143 }; | |
| 144 | |
| 145 template <typename M, typename T> | |
| 146 const M* paint_op_array(const T* op) { | |
| 147 static_assert(std::is_convertible<T, PaintOpWithDataArrayBase>::value, | |
| 148 "T is not a PaintOpWithDataArray"); | |
| 149 // See comment in paint_op_data. Array data is stored after | |
| 150 // any void* data. Memory layout here is: |op|data|array data|next op| | |
| 151 return SkTAddOffset<const M>(op + 1, op->bytes); | |
| 152 } | |
| 153 template <typename M, typename T> | |
| 154 M* paint_op_array(T* op) { | |
| 155 static_assert(std::is_convertible<T, PaintOpWithDataArrayBase>::value, | |
| 156 "T is not a PaintOpWithDataArray"); | |
| 157 return SkTAddOffset<M>(op + 1, op->bytes); | |
| 158 } | |
| 159 | |
| 160 struct AnnotateOp final : PaintOp { | |
| 161 enum class AnnotationType { | |
| 162 URL, | |
| 163 LinkToDestination, | |
| 164 NamedDestination, | |
| 165 }; | |
| 166 | |
| 167 static constexpr PaintOpType kType = PaintOpType::Annotate; | |
| 168 AnnotateOp(PaintCanvas::AnnotationType annotation_type, | |
| 169 const SkRect& rect, | |
| 170 sk_sp<SkData> data); | |
| 171 ~AnnotateOp(); | |
| 172 void Raster(SkCanvas* canvas) const; | |
| 173 | |
| 174 PaintCanvas::AnnotationType annotation_type; | |
| 175 SkRect rect; | |
| 176 sk_sp<SkData> data; | |
| 177 }; | |
| 178 | |
| 179 struct ClipPathOp final : PaintOp { | |
| 180 static constexpr PaintOpType kType = PaintOpType::ClipPath; | |
| 181 ClipPathOp(SkPath path, SkClipOp op, bool antialias) | |
| 182 : path(path), op(op), antialias(antialias) {} | |
| 183 void Raster(SkCanvas* canvas) const; | |
| 184 int CountSlowPaths() const; | |
| 185 | |
| 186 ThreadsafePath path; | |
| 187 SkClipOp op; | |
| 188 bool antialias; | |
| 189 }; | |
| 190 | |
| 191 struct ClipRectOp final : PaintOp { | |
| 192 static constexpr PaintOpType kType = PaintOpType::ClipRect; | |
| 193 ClipRectOp(const SkRect& rect, SkClipOp op, bool antialias) | |
| 194 : rect(rect), op(op), antialias(antialias) {} | |
| 195 void Raster(SkCanvas* canvas) const; | |
| 196 | |
| 197 SkRect rect; | |
| 198 SkClipOp op; | |
| 199 bool antialias; | |
| 200 }; | |
| 201 | |
| 202 struct ClipRRectOp final : PaintOp { | |
| 203 static constexpr PaintOpType kType = PaintOpType::ClipRRect; | |
| 204 ClipRRectOp(const SkRRect& rrect, SkClipOp op, bool antialias) | |
| 205 : rrect(rrect), op(op), antialias(antialias) {} | |
| 206 void Raster(SkCanvas* canvas) const; | |
| 207 | |
| 208 SkRRect rrect; | |
| 209 SkClipOp op; | |
| 210 bool antialias; | |
| 211 }; | |
| 212 | |
| 213 struct ConcatOp final : PaintOp { | |
| 214 static constexpr PaintOpType kType = PaintOpType::Concat; | |
| 215 explicit ConcatOp(const SkMatrix& matrix) : matrix(matrix) {} | |
| 216 void Raster(SkCanvas* canvas) const; | |
| 217 | |
| 218 ThreadsafeMatrix matrix; | |
| 219 }; | |
| 220 | |
| 221 struct DrawArcOp final : PaintOp { | |
| 222 static constexpr PaintOpType kType = PaintOpType::DrawArc; | |
| 223 static constexpr bool kIsDrawOp = true; | |
| 224 static constexpr bool kHasPaintFlags = true; | |
| 225 DrawArcOp(const SkRect& oval, | |
| 226 SkScalar start_angle, | |
| 227 SkScalar sweep_angle, | |
| 228 bool use_center, | |
| 229 const PaintFlags& flags) | |
| 230 : oval(oval), | |
| 231 start_angle(start_angle), | |
| 232 sweep_angle(sweep_angle), | |
| 233 use_center(use_center), | |
| 234 flags(flags) {} | |
| 235 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 236 | |
| 237 SkRect oval; | |
| 238 SkScalar start_angle; | |
| 239 SkScalar sweep_angle; | |
| 240 bool use_center; | |
| 241 PaintFlags flags; | |
| 242 }; | |
| 243 | |
| 244 struct DrawCircleOp final : PaintOp { | |
| 245 static constexpr PaintOpType kType = PaintOpType::DrawCircle; | |
| 246 static constexpr bool kIsDrawOp = true; | |
| 247 static constexpr bool kHasPaintFlags = true; | |
| 248 DrawCircleOp(SkScalar cx, | |
| 249 SkScalar cy, | |
| 250 SkScalar radius, | |
| 251 const PaintFlags& flags) | |
| 252 : cx(cx), cy(cy), radius(radius), flags(flags) {} | |
| 253 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 254 | |
| 255 SkScalar cx; | |
| 256 SkScalar cy; | |
| 257 SkScalar radius; | |
| 258 PaintFlags flags; | |
| 259 }; | |
| 260 | |
| 261 struct DrawColorOp final : PaintOp { | |
| 262 static constexpr PaintOpType kType = PaintOpType::DrawColor; | |
| 263 static constexpr bool kIsDrawOp = true; | |
| 264 DrawColorOp(SkColor color, SkBlendMode mode) : color(color), mode(mode) {} | |
| 265 void Raster(SkCanvas* canvas) const; | |
| 266 | |
| 267 SkColor color; | |
| 268 SkBlendMode mode; | |
| 269 }; | |
| 270 | |
| 271 struct DrawDisplayItemListOp final : PaintOp { | |
| 272 static constexpr PaintOpType kType = PaintOpType::DrawDisplayItemList; | |
| 273 static constexpr bool kIsDrawOp = true; | |
| 274 explicit DrawDisplayItemListOp(scoped_refptr<DisplayItemList> list); | |
| 275 ~DrawDisplayItemListOp(); | |
| 276 void Raster(SkCanvas* canvas) const; | |
| 277 size_t AdditionalBytesUsed() const; | |
| 278 // TODO(enne): DisplayItemList should know number of slow paths. | |
| 279 | |
| 280 scoped_refptr<DisplayItemList> list; | |
| 281 }; | |
| 282 | |
| 283 struct DrawDRRectOp final : PaintOp { | |
| 284 static constexpr PaintOpType kType = PaintOpType::DrawDRRect; | |
| 285 static constexpr bool kIsDrawOp = true; | |
| 286 static constexpr bool kHasPaintFlags = true; | |
| 287 DrawDRRectOp(const SkRRect& outer, | |
| 288 const SkRRect& inner, | |
| 289 const PaintFlags& flags) | |
| 290 : outer(outer), inner(inner), flags(flags) {} | |
| 291 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 292 | |
| 293 SkRRect outer; | |
| 294 SkRRect inner; | |
| 295 PaintFlags flags; | |
| 296 }; | |
| 297 | |
| 298 struct DrawImageOp final : PaintOp { | |
| 299 static constexpr PaintOpType kType = PaintOpType::DrawImage; | |
| 300 static constexpr bool kIsDrawOp = true; | |
| 301 static constexpr bool kHasPaintFlags = true; | |
| 302 DrawImageOp(const PaintImage& image, | |
| 303 SkScalar left, | |
| 304 SkScalar top, | |
| 305 const PaintFlags* flags); | |
| 306 ~DrawImageOp(); | |
| 307 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 308 | |
| 309 PaintImage image; | |
| 310 SkScalar left; | |
| 311 SkScalar top; | |
| 312 PaintFlags flags; | |
| 313 }; | |
| 314 | |
| 315 struct DrawImageRectOp final : PaintOp { | |
| 316 static constexpr PaintOpType kType = PaintOpType::DrawImageRect; | |
| 317 static constexpr bool kIsDrawOp = true; | |
| 318 static constexpr bool kHasPaintFlags = true; | |
| 319 DrawImageRectOp(const PaintImage& image, | |
| 320 const SkRect& src, | |
| 321 const SkRect& dst, | |
| 322 const PaintFlags* flags, | |
| 323 PaintCanvas::SrcRectConstraint constraint); | |
| 324 ~DrawImageRectOp(); | |
| 325 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 326 | |
| 327 PaintImage image; | |
| 328 PaintFlags flags; | |
| 329 SkRect src; | |
| 330 SkRect dst; | |
| 331 PaintCanvas::SrcRectConstraint constraint; | |
| 332 }; | |
| 333 | |
| 334 struct DrawIRectOp final : PaintOp { | |
| 335 static constexpr PaintOpType kType = PaintOpType::DrawIRect; | |
| 336 static constexpr bool kIsDrawOp = true; | |
| 337 static constexpr bool kHasPaintFlags = true; | |
| 338 DrawIRectOp(const SkIRect& rect, const PaintFlags& flags) | |
| 339 : rect(rect), flags(flags) {} | |
| 340 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 341 | |
| 342 SkIRect rect; | |
| 343 PaintFlags flags; | |
| 344 }; | |
| 345 | |
| 346 struct DrawLineOp final : PaintOp { | |
| 347 static constexpr PaintOpType kType = PaintOpType::DrawLine; | |
| 348 static constexpr bool kIsDrawOp = true; | |
| 349 static constexpr bool kHasPaintFlags = true; | |
| 350 DrawLineOp(SkScalar x0, | |
| 351 SkScalar y0, | |
| 352 SkScalar x1, | |
| 353 SkScalar y1, | |
| 354 const PaintFlags& flags) | |
| 355 : x0(x0), y0(y0), x1(x1), y1(y1), flags(flags) {} | |
| 356 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 357 int CountSlowPaths() const; | |
| 358 | |
| 359 SkScalar x0; | |
| 360 SkScalar y0; | |
| 361 SkScalar x1; | |
| 362 SkScalar y1; | |
| 363 PaintFlags flags; | |
| 364 }; | |
| 365 | |
| 366 struct DrawOvalOp final : PaintOp { | |
| 367 static constexpr PaintOpType kType = PaintOpType::DrawOval; | |
| 368 static constexpr bool kIsDrawOp = true; | |
| 369 static constexpr bool kHasPaintFlags = true; | |
| 370 DrawOvalOp(const SkRect& oval, const PaintFlags& flags) | |
| 371 : oval(oval), flags(flags) {} | |
| 372 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 373 | |
| 374 SkRect oval; | |
| 375 PaintFlags flags; | |
| 376 }; | |
| 377 | |
| 378 struct DrawPathOp final : PaintOp { | |
| 379 static constexpr PaintOpType kType = PaintOpType::DrawPath; | |
| 380 static constexpr bool kIsDrawOp = true; | |
| 381 static constexpr bool kHasPaintFlags = true; | |
| 382 DrawPathOp(const SkPath& path, const PaintFlags& flags) | |
| 383 : path(path), flags(flags) {} | |
| 384 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 385 int CountSlowPaths() const; | |
| 386 | |
| 387 ThreadsafePath path; | |
| 388 PaintFlags flags; | |
| 389 }; | |
| 390 | |
| 391 struct DrawPosTextOp final : PaintOpWithDataArray<SkPoint> { | |
| 392 static constexpr PaintOpType kType = PaintOpType::DrawPosText; | |
| 393 static constexpr bool kIsDrawOp = true; | |
| 394 static constexpr bool kHasPaintFlags = true; | |
| 395 DrawPosTextOp(size_t bytes, size_t count, const PaintFlags& flags); | |
| 396 ~DrawPosTextOp(); | |
| 397 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 398 | |
| 399 PaintFlags flags; | |
| 400 }; | |
| 401 | |
| 402 struct DrawRecordOp final : PaintOp { | |
| 403 static constexpr PaintOpType kType = PaintOpType::DrawRecord; | |
| 404 static constexpr bool kIsDrawOp = true; | |
| 405 explicit DrawRecordOp(sk_sp<const PaintRecord> record); | |
| 406 ~DrawRecordOp(); | |
| 407 void Raster(SkCanvas* canvas) const; | |
| 408 size_t AdditionalBytesUsed() const; | |
| 409 | |
| 410 sk_sp<const PaintRecord> record; | |
| 411 }; | |
| 412 | |
| 413 struct DrawRectOp final : PaintOp { | |
| 414 static constexpr PaintOpType kType = PaintOpType::DrawRect; | |
| 415 static constexpr bool kIsDrawOp = true; | |
| 416 static constexpr bool kHasPaintFlags = true; | |
| 417 DrawRectOp(const SkRect& rect, const PaintFlags& flags) | |
| 418 : rect(rect), flags(flags) {} | |
| 419 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 420 | |
| 421 SkRect rect; | |
| 422 PaintFlags flags; | |
| 423 }; | |
| 424 | |
| 425 struct DrawRRectOp final : PaintOp { | |
| 426 static constexpr PaintOpType kType = PaintOpType::DrawRRect; | |
| 427 static constexpr bool kIsDrawOp = true; | |
| 428 static constexpr bool kHasPaintFlags = true; | |
| 429 DrawRRectOp(const SkRRect& rrect, const PaintFlags& flags) | |
| 430 : rrect(rrect), flags(flags) {} | |
| 431 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 432 | |
| 433 SkRRect rrect; | |
| 434 PaintFlags flags; | |
| 435 }; | |
| 436 | |
| 437 struct DrawTextOp final : PaintOpWithData { | |
| 438 static constexpr PaintOpType kType = PaintOpType::DrawText; | |
| 439 static constexpr bool kIsDrawOp = true; | |
| 440 static constexpr bool kHasPaintFlags = true; | |
| 441 DrawTextOp(size_t bytes, SkScalar x, SkScalar y, const PaintFlags& flags) | |
| 442 : PaintOpWithData(bytes), x(x), y(y), flags(flags) {} | |
| 443 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 444 | |
| 445 SkScalar x; | |
| 446 SkScalar y; | |
| 447 PaintFlags flags; | |
| 448 }; | |
| 449 | |
| 450 struct DrawTextBlobOp final : PaintOp { | |
| 451 static constexpr PaintOpType kType = PaintOpType::DrawTextBlob; | |
| 452 static constexpr bool kIsDrawOp = true; | |
| 453 static constexpr bool kHasPaintFlags = true; | |
| 454 DrawTextBlobOp(sk_sp<SkTextBlob> blob, | |
| 455 SkScalar x, | |
| 456 SkScalar y, | |
| 457 const PaintFlags& flags); | |
| 458 ~DrawTextBlobOp(); | |
| 459 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 460 | |
| 461 sk_sp<SkTextBlob> blob; | |
| 462 SkScalar x; | |
| 463 SkScalar y; | |
| 464 PaintFlags flags; | |
| 465 }; | |
| 466 | |
| 467 struct NoopOp final : PaintOp { | |
| 468 static constexpr PaintOpType kType = PaintOpType::Noop; | |
| 469 void Raster(SkCanvas* canvas) const {} | |
| 470 }; | |
| 471 | |
| 472 struct RestoreOp final : PaintOp { | |
| 473 static constexpr PaintOpType kType = PaintOpType::Restore; | |
| 474 void Raster(SkCanvas* canvas) const; | |
| 475 }; | |
| 476 | |
| 477 struct RotateOp final : PaintOp { | |
| 478 static constexpr PaintOpType kType = PaintOpType::Rotate; | |
| 479 explicit RotateOp(SkScalar degrees) : degrees(degrees) {} | |
| 480 void Raster(SkCanvas* canvas) const; | |
| 481 | |
| 482 SkScalar degrees; | |
| 483 }; | |
| 484 | |
| 485 struct SaveOp final : PaintOp { | |
| 486 static constexpr PaintOpType kType = PaintOpType::Save; | |
| 487 void Raster(SkCanvas* canvas) const; | |
| 488 }; | |
| 489 | |
| 490 struct SaveLayerOp final : PaintOp { | |
| 491 static constexpr PaintOpType kType = PaintOpType::SaveLayer; | |
| 492 static constexpr bool kHasPaintFlags = true; | |
| 493 SaveLayerOp(const SkRect* bounds, const PaintFlags* flags) | |
| 494 : bounds(bounds ? *bounds : kUnsetRect) { | |
| 495 if (flags) | |
| 496 this->flags = *flags; | |
| 497 } | |
| 498 void RasterWithFlags(SkCanvas* canvas, const PaintFlags& flags) const; | |
| 499 | |
| 500 SkRect bounds; | |
| 501 PaintFlags flags; | |
| 502 }; | |
| 503 | |
| 504 struct SaveLayerAlphaOp final : PaintOp { | |
| 505 static constexpr PaintOpType kType = PaintOpType::SaveLayerAlpha; | |
| 506 SaveLayerAlphaOp(const SkRect* bounds, uint8_t alpha) | |
| 507 : bounds(bounds ? *bounds : kUnsetRect), alpha(alpha) {} | |
| 508 void Raster(SkCanvas* canvas) const; | |
| 509 | |
| 510 SkRect bounds; | |
| 511 uint8_t alpha; | |
| 512 }; | |
| 513 | |
| 514 struct ScaleOp final : PaintOp { | |
| 515 static constexpr PaintOpType kType = PaintOpType::Scale; | |
| 516 ScaleOp(SkScalar sx, SkScalar sy) : sx(sx), sy(sy) {} | |
| 517 void Raster(SkCanvas* canvas) const; | |
| 518 | |
| 519 SkScalar sx; | |
| 520 SkScalar sy; | |
| 521 }; | |
| 522 | |
| 523 struct SetMatrixOp final : PaintOp { | |
| 524 static constexpr PaintOpType kType = PaintOpType::SetMatrix; | |
| 525 explicit SetMatrixOp(const SkMatrix& matrix) : matrix(matrix) {} | |
| 526 // This is the only op that needs the original ctm of the SkCanvas | |
| 527 // used for raster (since SetMatrix is relative to the recording origin and | |
| 528 // shouldn't clobber the SkCanvas raster origin). | |
| 529 // | |
| 530 // TODO(enne): Find some cleaner way to do this, possibly by making | |
| 531 // all SetMatrix calls Concat?? | |
| 532 void Raster(SkCanvas* canvas, const SkMatrix& original_ctm) const; | |
| 533 | |
| 534 ThreadsafeMatrix matrix; | |
| 535 }; | |
| 536 | |
| 537 struct TranslateOp final : PaintOp { | |
| 538 static constexpr PaintOpType kType = PaintOpType::Translate; | |
| 539 TranslateOp(SkScalar dx, SkScalar dy) : dx(dx), dy(dy) {} | |
| 540 void Raster(SkCanvas* canvas) const; | |
| 541 | |
| 542 SkScalar dx; | |
| 543 SkScalar dy; | |
| 544 }; | |
| 545 | |
| 546 using LargestPaintOp = DrawDRRectOp; | |
| 547 | |
| 548 class CC_PAINT_EXPORT PaintOpBuffer : public SkRefCnt { | |
| 549 public: | |
| 550 enum { kInitialBufferSize = 4096 }; | |
| 551 | |
| 552 PaintOpBuffer(); | |
| 553 explicit PaintOpBuffer(const SkRect& cull_rect); | |
| 554 ~PaintOpBuffer() override; | |
| 555 | |
| 556 void Reset(); | |
| 557 | |
| 558 void playback(SkCanvas* canvas) const; | |
| 559 void playback(SkCanvas* canvas, SkPicture::AbortCallback* callback) const; | |
| 560 | |
| 561 // TODO(enne): These are no longer approximate. Rename these. | |
| 562 int approximateOpCount() const { return op_count_; } | |
| 563 size_t approximateBytesUsed() const { | |
| 564 return sizeof(*this) + reserved_ + subrecord_bytes_used_; | |
| 565 } | |
| 566 int numSlowPaths() const { return num_slow_paths_; } | |
| 567 | |
| 568 // Resize the PaintOpBuffer to exactly fit the current amount of used space. | |
| 569 void ShrinkToFit(); | |
| 570 | |
| 571 const SkRect& cullRect() const { return cull_rect_; } | |
| 572 | |
| 573 PaintOp* GetFirstOp() const { | |
| 574 return reinterpret_cast<PaintOp*>(const_cast<char*>(&first_op_[0])); | |
| 575 } | |
| 576 | |
| 577 template <typename T, typename... Args> | |
| 578 void push(Args&&... args) { | |
| 579 static_assert(std::is_convertible<T, PaintOp>::value, "T not a PaintOp."); | |
| 580 static_assert(!std::is_convertible<T, PaintOpWithData>::value, | |
| 581 "Type needs to use push_with_data"); | |
| 582 push_internal<T>(0, std::forward<Args>(args)...); | |
| 583 } | |
| 584 | |
| 585 template <typename T, typename... Args> | |
| 586 void push_with_data(const void* data, size_t bytes, Args&&... args) { | |
| 587 static_assert(std::is_convertible<T, PaintOpWithData>::value, | |
| 588 "T is not a PaintOpWithData"); | |
| 589 #if !defined(OS_CHROMEOS) | |
| 590 // TODO(enne): non-linux chromeos builds think that DrawTextOp | |
| 591 // can be converted to a PaintOpWithDataArrayBase. OOPS. | |
| 592 static_assert(!std::is_convertible<T, PaintOpWithDataArrayBase>::value, | |
| 593 "Type needs to use push_with_data_array"); | |
| 594 #endif | |
| 595 DCHECK_GE(bytes, 0u); | |
| 596 T* op = push_internal<T>(bytes, bytes, std::forward<Args>(args)...); | |
| 597 memcpy(paint_op_data(op), data, bytes); | |
| 598 | |
| 599 #if DCHECK_IS_ON() | |
| 600 // Double check the data fits between op and next op and doesn't clobber. | |
| 601 char* op_start = reinterpret_cast<char*>(op); | |
| 602 char* op_end = op_start + sizeof(T); | |
| 603 char* next_op = op_start + op->skip; | |
| 604 char* data_start = reinterpret_cast<char*>(paint_op_data(op)); | |
| 605 char* data_end = data_start + bytes; | |
| 606 DCHECK_GE(data_start, op_end); | |
| 607 DCHECK_LT(data_start, next_op); | |
| 608 DCHECK_LE(data_end, next_op); | |
| 609 #endif | |
| 610 } | |
| 611 | |
| 612 template <typename T, typename M, typename... Args> | |
| 613 void push_with_data_array(const void* data, | |
| 614 size_t bytes, | |
| 615 const M* array, | |
| 616 size_t count, | |
| 617 Args&&... args) { | |
| 618 static_assert(std::is_convertible<T, PaintOpWithDataArray<M>>::value, | |
| 619 "T is not a PaintOpWithDataArray"); | |
| 620 DCHECK_GE(bytes, 0u); | |
| 621 DCHECK_GE(count, 0u); | |
| 622 size_t array_size = sizeof(M) * count; | |
| 623 size_t total_size = bytes + array_size; | |
| 624 T* op = | |
| 625 push_internal<T>(total_size, bytes, count, std::forward<Args>(args)...); | |
| 626 memcpy(paint_op_data(op), data, bytes); | |
| 627 memcpy(paint_op_array<M>(op), array, array_size); | |
| 628 | |
| 629 #if DCHECK_IS_ON() | |
| 630 // Double check data and array don't clobber op, next op, or each other | |
| 631 char* op_start = reinterpret_cast<char*>(op); | |
| 632 char* op_end = op_start + sizeof(T); | |
| 633 char* next_op = op_start + op->skip; | |
| 634 char* data_start = reinterpret_cast<char*>(paint_op_data(op)); | |
| 635 char* data_end = data_start + bytes; | |
| 636 char* array_start = reinterpret_cast<char*>(paint_op_array<M>(op)); | |
| 637 char* array_end = array_start + array_size; | |
| 638 DCHECK_GE(data_start, op_end); | |
| 639 DCHECK_LE(data_start, array_start); | |
| 640 DCHECK_GE(array_start, data_end); | |
| 641 DCHECK_LE(array_end, next_op); | |
| 642 #endif | |
| 643 } | |
| 644 | |
| 645 class Iterator { | |
| 646 public: | |
| 647 explicit Iterator(const PaintOpBuffer* buffer) | |
| 648 : buffer_(buffer), ptr_(buffer_->data_.get()) {} | |
| 649 | |
| 650 PaintOp* operator->() const { | |
| 651 return op_idx_ ? reinterpret_cast<PaintOp*>(ptr_) : buffer_->GetFirstOp(); | |
| 652 } | |
| 653 PaintOp* operator*() const { return operator->(); } | |
| 654 Iterator begin() { return Iterator(buffer_, buffer_->data_.get(), 0); } | |
| 655 Iterator end() { | |
| 656 return Iterator(buffer_, buffer_->data_.get() + buffer_->used_, | |
| 657 buffer_->approximateOpCount()); | |
| 658 } | |
| 659 bool operator!=(const Iterator& other) { | |
| 660 // Not valid to compare iterators on different buffers. | |
| 661 DCHECK_EQ(other.buffer_, buffer_); | |
| 662 return other.op_idx_ != op_idx_; | |
| 663 } | |
| 664 Iterator& operator++() { | |
| 665 if (!op_idx_++) | |
| 666 return *this; | |
| 667 PaintOp* op = **this; | |
| 668 uint32_t type = op->type; | |
| 669 CHECK_LE(type, static_cast<uint32_t>(PaintOpType::LastPaintOpType)); | |
| 670 ptr_ += op->skip; | |
| 671 return *this; | |
| 672 } | |
| 673 operator bool() const { return op_idx_ < buffer_->approximateOpCount(); } | |
| 674 | |
| 675 int op_idx() const { return op_idx_; } | |
| 676 | |
| 677 // Return the next op without advancing the iterator, or nullptr if none. | |
| 678 PaintOp* peek1() const { | |
| 679 if (op_idx_ + 1 >= buffer_->approximateOpCount()) | |
| 680 return nullptr; | |
| 681 if (!op_idx_) | |
| 682 return reinterpret_cast<PaintOp*>(ptr_); | |
| 683 return reinterpret_cast<PaintOp*>(ptr_ + (*this)->skip); | |
| 684 } | |
| 685 | |
| 686 // Return the op two ops ahead without advancing the iterator, or nullptr if | |
| 687 // none. | |
| 688 PaintOp* peek2() const { | |
| 689 if (op_idx_ + 2 >= buffer_->approximateOpCount()) | |
| 690 return nullptr; | |
| 691 char* next = ptr_ + reinterpret_cast<PaintOp*>(ptr_)->skip; | |
| 692 PaintOp* next_op = reinterpret_cast<PaintOp*>(next); | |
| 693 if (!op_idx_) | |
| 694 return next_op; | |
| 695 return reinterpret_cast<PaintOp*>(next + next_op->skip); | |
| 696 } | |
| 697 | |
| 698 private: | |
| 699 Iterator(const PaintOpBuffer* buffer, char* ptr, int op_idx) | |
| 700 : buffer_(buffer), ptr_(ptr), op_idx_(op_idx) {} | |
| 701 | |
| 702 const PaintOpBuffer* buffer_ = nullptr; | |
| 703 char* ptr_ = nullptr; | |
| 704 int op_idx_ = 0; | |
| 705 }; | |
| 706 | |
| 707 private: | |
| 708 template <typename T, bool HasFlags> | |
| 709 struct CountSlowPathsFromFlags { | |
| 710 static int Count(const T* op) { return 0; } | |
| 711 }; | |
| 712 | |
| 713 template <typename T> | |
| 714 struct CountSlowPathsFromFlags<T, true> { | |
| 715 static int Count(const T* op) { return op->flags.getPathEffect() ? 1 : 0; } | |
| 716 }; | |
| 717 | |
| 718 template <typename T, typename... Args> | |
| 719 T* push_internal(size_t bytes, Args&&... args) { | |
| 720 size_t skip = SkAlignPtr(sizeof(T) + bytes); | |
| 721 DCHECK_LT(skip, static_cast<size_t>(1) << 24); | |
| 722 if (used_ + skip > reserved_ || !op_count_) { | |
| 723 if (!op_count_) { | |
| 724 if (bytes) { | |
| 725 // Internal first_op buffer doesn't have room for extra data. | |
| 726 // If the op wants extra bytes, then we'll just store a Noop | |
| 727 // in the first_op and proceed from there. This seems unlikely | |
| 728 // to be a common case. | |
| 729 push<NoopOp>(); | |
| 730 } else { | |
| 731 T* op = reinterpret_cast<T*>(&first_op_[0]); | |
| 732 new (op) T{std::forward<Args>(args)...}; | |
| 733 op->type = static_cast<uint32_t>(T::kType); | |
| 734 op->skip = 0; | |
| 735 op_count_++; | |
| 736 return op; | |
| 737 } | |
| 738 } | |
| 739 | |
| 740 // Start reserved_ at kInitialBufferSize and then double. | |
| 741 // ShrinkToFit can make this smaller afterwards. | |
| 742 while (used_ + skip > reserved_) | |
| 743 reserved_ = reserved_ ? reserved_ * 2 : kInitialBufferSize; | |
| 744 data_.realloc(reserved_); | |
| 745 } | |
| 746 DCHECK_LE(used_ + skip, reserved_); | |
| 747 | |
| 748 T* op = reinterpret_cast<T*>(data_.get() + used_); | |
| 749 used_ += skip; | |
| 750 new (op) T(std::forward<Args>(args)...); | |
| 751 op->type = static_cast<uint32_t>(T::kType); | |
| 752 op->skip = skip; | |
| 753 op_count_++; | |
| 754 | |
| 755 num_slow_paths_ += CountSlowPathsFromFlags<T, T::kHasPaintFlags>::Count(op); | |
| 756 num_slow_paths_ += op->CountSlowPaths(); | |
| 757 | |
| 758 subrecord_bytes_used_ += op->AdditionalBytesUsed(); | |
| 759 | |
| 760 return op; | |
| 761 } | |
| 762 | |
| 763 // As a performance optimization because n=1 is an extremely common case just | |
| 764 // store the first op in the PaintOpBuffer itself to avoid an extra alloc. | |
| 765 char first_op_[sizeof(LargestPaintOp)]; | |
| 766 SkAutoTMalloc<char> data_; | |
| 767 size_t used_ = 0; | |
| 768 size_t reserved_ = 0; | |
| 769 int op_count_ = 0; | |
| 770 | |
| 771 // Record paths for veto-to-msaa for gpu raster. | |
| 772 int num_slow_paths_ = 0; | |
| 773 // Record additional bytes used by referenced sub-records and display lists. | |
| 774 size_t subrecord_bytes_used_ = 0; | |
| 775 SkRect cull_rect_; | |
| 776 | |
| 777 DISALLOW_COPY_AND_ASSIGN(PaintOpBuffer); | |
| 778 }; | |
| 779 | |
| 780 } // namespace cc | |
| 781 | |
| 782 #endif // CC_PAINT_PAINT_OP_BUFFER_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2820133005:
Revert of Back PaintRecord with PaintOpBuffer instead of SkPicture (Closed)
