reed | 54dc487 | 2016-09-13 08:09:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 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 "SkPathEffect.h" |
| 9 | #include "SkColorFilter.h" |
| 10 | #include "SkDrawLooper.h" |
| 11 | #include "SkImageFilter.h" |
| 12 | #include "SkMaskFilter.h" |
| 13 | #include "SkPipeCanvas.h" |
| 14 | #include "SkPipeFormat.h" |
| 15 | #include "SkRasterizer.h" |
| 16 | #include "SkRSXform.h" |
| 17 | #include "SkShader.h" |
| 18 | #include "SkStream.h" |
| 19 | #include "SkTextBlob.h" |
| 20 | #include "SkTypeface.h" |
| 21 | |
| 22 | template <typename T> void write_rrect(T* writer, const SkRRect& rrect) { |
| 23 | char tmp[SkRRect::kSizeInMemory]; |
| 24 | rrect.writeToMemory(tmp); |
| 25 | writer->write(tmp, SkRRect::kSizeInMemory); |
| 26 | } |
| 27 | |
| 28 | template <typename T> void write_pad(T* writer, const void* buffer, size_t len) { |
| 29 | writer->write(buffer, len & ~3); |
| 30 | if (len & 3) { |
| 31 | const char* src = (const char*)buffer + (len & ~3); |
| 32 | len &= 3; |
| 33 | uint32_t tmp = 0; |
| 34 | memcpy(&tmp, src, len); |
| 35 | writer->write(&tmp, 4); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 40 | |
| 41 | static uint16_t compute_nondef(const SkPaint& paint, PaintUsage usage) { |
| 42 | // kRespectsStroke_PaintUsage is only valid if other bits are also set |
| 43 | SkASSERT(0 != (usage & ~kRespectsStroke_PaintUsage)); |
| 44 | |
| 45 | const SkScalar kTextSize_Default = 12; |
| 46 | const SkScalar kTextScaleX_Default = 1; |
| 47 | const SkScalar kTextSkewX_Default = 0; |
| 48 | const SkScalar kStrokeWidth_Default = 0; |
| 49 | const SkScalar kStrokeMiter_Default = 4; |
| 50 | const SkColor kColor_Default = SK_ColorBLACK; |
| 51 | |
| 52 | unsigned bits = (paint.getColor() != kColor_Default) ? kColor_NonDef : 0; |
| 53 | |
| 54 | if (usage & kText_PaintUsage) { |
| 55 | bits |= (paint.getTextSize() != kTextSize_Default ? kTextSize_NonDef : 0); |
| 56 | bits |= (paint.getTextScaleX() != kTextScaleX_Default ? kTextScaleX_NonDef : 0); |
| 57 | bits |= (paint.getTextSkewX() != kTextSkewX_Default ? kTextSkewX_NonDef : 0); |
| 58 | bits |= (paint.getTypeface() ? kTypeface_NonDef : 0); |
| 59 | } |
| 60 | |
| 61 | // TODO: kImage_PaintUsage only needs the shader/maskfilter IF its colortype is kAlpha_8 |
| 62 | |
| 63 | if (usage & (kVertices_PaintUsage | kDrawPaint_PaintUsage | kImage_PaintUsage | |
| 64 | kText_PaintUsage | kGeometry_PaintUsage | kTextBlob_PaintUsage)) { |
| 65 | bits |= (paint.getShader() ? kShader_NonDef : 0); |
| 66 | } |
| 67 | |
| 68 | if (usage & (kText_PaintUsage | kGeometry_PaintUsage | kTextBlob_PaintUsage)) { |
| 69 | bits |= (paint.getPathEffect() ? kPathEffect_NonDef : 0); |
| 70 | bits |= (paint.getRasterizer() ? kRasterizer_NonDef : 0); |
| 71 | |
| 72 | if (paint.getStyle() != SkPaint::kFill_Style || (usage & kRespectsStroke_PaintUsage)) { |
| 73 | bits |= (paint.getStrokeWidth() != kStrokeWidth_Default ? kStrokeWidth_NonDef : 0); |
| 74 | bits |= (paint.getStrokeMiter() != kStrokeMiter_Default ? kStrokeMiter_NonDef : 0); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | if (usage & |
| 79 | (kText_PaintUsage | kGeometry_PaintUsage | kImage_PaintUsage | kTextBlob_PaintUsage)) |
| 80 | { |
| 81 | bits |= (paint.getMaskFilter() ? kMaskFilter_NonDef : 0); |
| 82 | } |
| 83 | |
| 84 | bits |= (paint.getXfermode() ? kXfermode_NonDef : 0); |
| 85 | bits |= (paint.getColorFilter() ? kColorFilter_NonDef : 0); |
| 86 | bits |= (paint.getImageFilter() ? kImageFilter_NonDef : 0); |
| 87 | bits |= (paint.getDrawLooper() ? kDrawLooper_NonDef : 0); |
| 88 | |
| 89 | return SkToU16(bits); |
| 90 | } |
| 91 | |
| 92 | static uint32_t pack_paint_flags(unsigned flags, unsigned hint, unsigned align, |
| 93 | unsigned filter, unsigned style, unsigned caps, unsigned joins, |
| 94 | unsigned encoding) { |
| 95 | SkASSERT(kFlags_BPF + kHint_BPF + kAlign_BPF + kFilter_BPF <= 32); |
| 96 | |
| 97 | ASSERT_FITS_IN(flags, kFlags_BPF); |
| 98 | ASSERT_FITS_IN(filter, kFilter_BPF); |
| 99 | ASSERT_FITS_IN(style, kStyle_BPF); |
| 100 | ASSERT_FITS_IN(caps, kCaps_BPF); |
| 101 | ASSERT_FITS_IN(joins, kJoins_BPF); |
| 102 | ASSERT_FITS_IN(hint, kHint_BPF); |
| 103 | ASSERT_FITS_IN(align, kAlign_BPF); |
| 104 | ASSERT_FITS_IN(encoding, kEncoding_BPF); |
| 105 | |
| 106 | // left-align the fields of "known" size, and right-align the last (flatFlags) so it can easly |
| 107 | // add more bits in the future. |
| 108 | |
| 109 | uint32_t packed = 0; |
| 110 | int shift = 32; |
| 111 | |
| 112 | shift -= kFlags_BPF; packed |= (flags << shift); |
| 113 | shift -= kFilter_BPF; packed |= (filter << shift); |
| 114 | shift -= kStyle_BPF; packed |= (style << shift); |
| 115 | // these are only needed for stroking (geometry or text) |
| 116 | shift -= kCaps_BPF; packed |= (caps << shift); |
| 117 | shift -= kJoins_BPF; packed |= (joins << shift); |
| 118 | // these are only needed for text |
| 119 | shift -= kHint_BPF; packed |= (hint << shift); |
| 120 | shift -= kAlign_BPF; packed |= (align << shift); |
| 121 | shift -= kEncoding_BPF; packed |= (encoding << shift); |
| 122 | |
| 123 | return packed; |
| 124 | } |
| 125 | |
| 126 | #define CHECK_WRITE_SCALAR(writer, nondef, paint, Field) \ |
| 127 | do { if (nondef & (k##Field##_NonDef)) { \ |
| 128 | writer.writeScalar(paint.get##Field()); \ |
| 129 | }} while (0) |
| 130 | |
| 131 | #define CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Field) \ |
| 132 | do { if (nondef & (k##Field##_NonDef)) { \ |
| 133 | SkFlattenable* f = paint.get##Field(); \ |
| 134 | SkASSERT(f != nullptr); \ |
| 135 | writer.writeFlattenable(f); \ |
| 136 | } } while (0) |
| 137 | |
| 138 | /* |
| 139 | * Header: |
| 140 | * paint flags : 32 |
| 141 | * non_def bits : 16 |
| 142 | * xfermode enum : 8 |
| 143 | * pad zeros : 8 |
| 144 | */ |
| 145 | static void write_paint(SkWriteBuffer& writer, const SkPaint& paint, unsigned usage) { |
| 146 | uint32_t packedFlags = pack_paint_flags(paint.getFlags(), paint.getHinting(), |
| 147 | paint.getTextAlign(), paint.getFilterQuality(), |
| 148 | paint.getStyle(), paint.getStrokeCap(), |
| 149 | paint.getStrokeJoin(), paint.getTextEncoding()); |
| 150 | writer.write32(packedFlags); |
| 151 | |
| 152 | unsigned nondef = compute_nondef(paint, (PaintUsage)usage); |
| 153 | SkXfermode::Mode mode; |
| 154 | if (SkXfermode::AsMode(paint.getXfermode(), &mode)) { |
| 155 | nondef &= ~kXfermode_NonDef; // don't need to store a pointer since we have an enum |
| 156 | } else { |
| 157 | SkASSERT(nondef & kXfermode_NonDef); |
| 158 | mode = (SkXfermode::Mode)0; |
| 159 | } |
| 160 | const uint8_t pad = 0; |
| 161 | writer.write32((nondef << 16) | ((unsigned)mode << 8) | pad); |
| 162 | |
| 163 | CHECK_WRITE_SCALAR(writer, nondef, paint, TextSize); |
| 164 | CHECK_WRITE_SCALAR(writer, nondef, paint, TextScaleX); |
| 165 | CHECK_WRITE_SCALAR(writer, nondef, paint, TextSkewX); |
| 166 | CHECK_WRITE_SCALAR(writer, nondef, paint, StrokeWidth); |
| 167 | CHECK_WRITE_SCALAR(writer, nondef, paint, StrokeMiter); |
| 168 | |
| 169 | if (nondef & kColor_NonDef) { |
| 170 | writer.write32(paint.getColor()); |
| 171 | } |
| 172 | if (nondef & kTypeface_NonDef) { |
| 173 | // TODO: explore idea of writing bits indicating "use the prev (or prev N) face" |
| 174 | // e.g. 1-N bits is an index into a ring buffer of typefaces |
| 175 | SkTypeface* tf = paint.getTypeface(); |
| 176 | SkASSERT(tf); |
| 177 | writer.writeTypeface(tf); |
| 178 | } |
| 179 | |
| 180 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, PathEffect); |
| 181 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Shader); |
| 182 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Xfermode); |
| 183 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, MaskFilter); |
| 184 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, ColorFilter); |
| 185 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Rasterizer); |
| 186 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, ImageFilter); |
| 187 | CHECK_WRITE_FLATTENABLE(writer, nondef, paint, DrawLooper); |
| 188 | } |
| 189 | |
| 190 | class SkPipeWriter : public SkBinaryWriteBuffer { |
| 191 | enum { |
| 192 | N = 1024/4, |
| 193 | }; |
| 194 | uint32_t fStorage[N]; |
| 195 | SkWStream* fStream; |
| 196 | |
| 197 | public: |
| 198 | SkPipeWriter(SkWStream* stream, SkDeduper* deduper) |
| 199 | : SkBinaryWriteBuffer(fStorage, sizeof(fStorage)) |
| 200 | , fStream(stream) |
| 201 | { |
| 202 | this->setDeduper(deduper); |
| 203 | } |
| 204 | |
| 205 | SkPipeWriter(SkPipeCanvas* pc) : SkPipeWriter(pc->fStream, pc->fDeduper) {} |
| 206 | |
| 207 | ~SkPipeWriter() override { |
| 208 | SkASSERT(SkIsAlign4(fStream->bytesWritten())); |
| 209 | this->writeToStream(fStream); |
| 210 | } |
| 211 | |
| 212 | void writePaint(const SkPaint& paint) override { |
| 213 | write_paint(*this, paint, kUnknown_PaintUsage); |
| 214 | } |
| 215 | }; |
| 216 | |
| 217 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 218 | |
| 219 | SkPipeCanvas::SkPipeCanvas(const SkRect& cull, SkPipeDeduper* deduper, SkWStream* stream) |
| 220 | : INHERITED(SkScalarCeilToInt(cull.width()), SkScalarCeilToInt(cull.height())) |
| 221 | , fDeduper(deduper) |
| 222 | , fStream(stream) |
| 223 | {} |
| 224 | |
| 225 | SkPipeCanvas::~SkPipeCanvas() {} |
| 226 | |
| 227 | void SkPipeCanvas::willSave() { |
| 228 | fStream->write32(pack_verb(SkPipeVerb::kSave)); |
| 229 | this->INHERITED::willSave(); |
| 230 | } |
| 231 | |
| 232 | SkCanvas::SaveLayerStrategy SkPipeCanvas::getSaveLayerStrategy(const SaveLayerRec& rec) { |
| 233 | SkPipeWriter writer(this); |
| 234 | uint32_t extra = rec.fSaveLayerFlags; |
| 235 | |
| 236 | // remap this wacky flag |
| 237 | if (extra & (1 << 31)/*SkCanvas::kDontClipToLayer_PrivateSaveLayerFlag*/) { |
| 238 | extra &= ~(1 << 31); |
| 239 | extra |= kDontClipToLayer_SaveLayerMask; |
| 240 | } |
| 241 | |
| 242 | if (rec.fBounds) { |
| 243 | extra |= kHasBounds_SaveLayerMask; |
| 244 | } |
| 245 | if (rec.fPaint) { |
| 246 | extra |= kHasPaint_SaveLayerMask; |
| 247 | } |
| 248 | if (rec.fBackdrop) { |
| 249 | extra |= kHasBackdrop_SaveLayerMask; |
| 250 | } |
| 251 | |
| 252 | writer.write32(pack_verb(SkPipeVerb::kSaveLayer, extra)); |
| 253 | if (rec.fBounds) { |
| 254 | writer.writeRect(*rec.fBounds); |
| 255 | } |
| 256 | if (rec.fPaint) { |
| 257 | write_paint(writer, *rec.fPaint, kSaveLayer_PaintUsage); |
| 258 | } |
| 259 | if (rec.fBackdrop) { |
| 260 | writer.writeFlattenable(rec.fBackdrop); |
| 261 | } |
| 262 | return kNoLayer_SaveLayerStrategy; |
| 263 | } |
| 264 | |
| 265 | void SkPipeCanvas::willRestore() { |
| 266 | fStream->write32(pack_verb(SkPipeVerb::kRestore)); |
| 267 | this->INHERITED::willRestore(); |
| 268 | } |
| 269 | |
| 270 | template <typename T> void write_sparse_matrix(T* writer, const SkMatrix& matrix) { |
| 271 | SkMatrix::TypeMask tm = matrix.getType(); |
| 272 | SkScalar tmp[9]; |
| 273 | if (tm & SkMatrix::kPerspective_Mask) { |
| 274 | matrix.get9(tmp); |
| 275 | writer->write(tmp, 9 * sizeof(SkScalar)); |
| 276 | } else if (tm & SkMatrix::kAffine_Mask) { |
| 277 | tmp[0] = matrix[SkMatrix::kMScaleX]; |
| 278 | tmp[1] = matrix[SkMatrix::kMSkewX]; |
| 279 | tmp[2] = matrix[SkMatrix::kMTransX]; |
| 280 | tmp[3] = matrix[SkMatrix::kMScaleY]; |
| 281 | tmp[4] = matrix[SkMatrix::kMSkewY]; |
| 282 | tmp[5] = matrix[SkMatrix::kMTransY]; |
| 283 | writer->write(tmp, 6 * sizeof(SkScalar)); |
| 284 | } else if (tm & SkMatrix::kScale_Mask) { |
| 285 | tmp[0] = matrix[SkMatrix::kMScaleX]; |
| 286 | tmp[1] = matrix[SkMatrix::kMTransX]; |
| 287 | tmp[2] = matrix[SkMatrix::kMScaleY]; |
| 288 | tmp[3] = matrix[SkMatrix::kMTransY]; |
| 289 | writer->write(tmp, 4 * sizeof(SkScalar)); |
| 290 | } else if (tm & SkMatrix::kTranslate_Mask) { |
| 291 | tmp[0] = matrix[SkMatrix::kMTransX]; |
| 292 | tmp[1] = matrix[SkMatrix::kMTransY]; |
| 293 | writer->write(tmp, 2 * sizeof(SkScalar)); |
| 294 | } |
| 295 | // else write nothing for Identity |
| 296 | } |
| 297 | |
| 298 | static void do_concat(SkWStream* stream, const SkMatrix& matrix, bool isSetMatrix) { |
| 299 | unsigned mtype = matrix.getType(); |
| 300 | SkASSERT(0 == (mtype & ~kTypeMask_ConcatMask)); |
| 301 | unsigned extra = mtype; |
| 302 | if (isSetMatrix) { |
| 303 | extra |= kSetMatrix_ConcatMask; |
| 304 | } |
| 305 | if (mtype || isSetMatrix) { |
| 306 | stream->write32(pack_verb(SkPipeVerb::kConcat, extra)); |
| 307 | write_sparse_matrix(stream, matrix); |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | void SkPipeCanvas::didConcat(const SkMatrix& matrix) { |
| 312 | do_concat(fStream, matrix, false); |
| 313 | this->INHERITED::didConcat(matrix); |
| 314 | } |
| 315 | |
| 316 | void SkPipeCanvas::didSetMatrix(const SkMatrix& matrix) { |
| 317 | do_concat(fStream, matrix, true); |
| 318 | this->INHERITED::didSetMatrix(matrix); |
| 319 | } |
| 320 | |
| 321 | void SkPipeCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| 322 | fStream->write32(pack_verb(SkPipeVerb::kClipRect, ((unsigned)op << 1) | edgeStyle)); |
| 323 | fStream->write(&rect, 4 * sizeof(SkScalar)); |
| 324 | |
| 325 | this->INHERITED::onClipRect(rect, op, edgeStyle); |
| 326 | } |
| 327 | |
| 328 | void SkPipeCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| 329 | fStream->write32(pack_verb(SkPipeVerb::kClipRRect, ((unsigned)op << 1) | edgeStyle)); |
| 330 | write_rrect(fStream, rrect); |
| 331 | |
| 332 | this->INHERITED::onClipRRect(rrect, op, edgeStyle); |
| 333 | } |
| 334 | |
| 335 | void SkPipeCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| 336 | SkPipeWriter writer(this); |
| 337 | writer.write32(pack_verb(SkPipeVerb::kClipPath, ((unsigned)op << 1) | edgeStyle)); |
| 338 | writer.writePath(path); |
| 339 | |
| 340 | this->INHERITED::onClipPath(path, op, edgeStyle); |
| 341 | } |
| 342 | |
| 343 | void SkPipeCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) { |
| 344 | SkPipeWriter writer(this); |
| 345 | writer.write32(pack_verb(SkPipeVerb::kClipRegion, (unsigned)op << 1)); |
| 346 | writer.writeRegion(deviceRgn); |
| 347 | |
| 348 | this->INHERITED::onClipRegion(deviceRgn, op); |
| 349 | } |
| 350 | |
| 351 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 352 | |
| 353 | void SkPipeCanvas::onDrawArc(const SkRect& bounds, SkScalar startAngle, SkScalar sweepAngle, |
| 354 | bool useCenter, const SkPaint& paint) { |
| 355 | SkPipeWriter writer(this); |
| 356 | writer.write32(pack_verb(SkPipeVerb::kDrawArc, (int)useCenter)); |
| 357 | writer.writeRect(bounds); |
| 358 | writer.writeScalar(startAngle); |
| 359 | writer.writeScalar(sweepAngle); |
| 360 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 361 | } |
| 362 | |
| 363 | void SkPipeCanvas::onDrawAtlas(const SkImage* image, const SkRSXform xform[], const SkRect rect[], |
| 364 | const SkColor colors[], int count, SkXfermode::Mode mode, |
| 365 | const SkRect* cull, const SkPaint* paint) { |
| 366 | unsigned extra = (unsigned)mode; |
| 367 | SkASSERT(0 == (extra & ~kMode_DrawAtlasMask)); |
| 368 | if (colors) { |
| 369 | extra |= kHasColors_DrawAtlasMask; |
| 370 | } |
| 371 | if (cull) { |
| 372 | extra |= kHasCull_DrawAtlasMask; |
| 373 | } |
| 374 | if (paint) { |
| 375 | extra |= kHasPaint_DrawAtlasMask; |
| 376 | } |
| 377 | |
| 378 | SkPipeWriter writer(this); |
| 379 | writer.write32(pack_verb(SkPipeVerb::kDrawAtlas, extra)); |
| 380 | writer.writeImage(image); |
| 381 | writer.write32(count); |
| 382 | writer.write(xform, count * sizeof(SkRSXform)); |
| 383 | writer.write(rect, count * sizeof(SkRect)); |
| 384 | if (colors) { |
| 385 | writer.write(colors, count * sizeof(SkColor)); |
| 386 | } |
| 387 | if (cull) { |
| 388 | writer.writeRect(*cull); |
| 389 | } |
| 390 | if (paint) { |
| 391 | write_paint(writer, *paint, kImage_PaintUsage); |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | void SkPipeCanvas::onDrawPaint(const SkPaint& paint) { |
| 396 | SkPipeWriter writer(this); |
| 397 | writer.write32(pack_verb(SkPipeVerb::kDrawPaint)); |
| 398 | write_paint(writer, paint, kDrawPaint_PaintUsage); |
| 399 | } |
| 400 | |
| 401 | void SkPipeCanvas::onDrawPoints(PointMode mode, size_t count, const SkPoint pts[], |
| 402 | const SkPaint& paint) { |
| 403 | SkPipeWriter writer(this); |
| 404 | writer.write32(pack_verb(SkPipeVerb::kDrawPoints, mode)); |
| 405 | writer.write32(SkToU32(count)); |
| 406 | writer.write(pts, count * sizeof(SkPoint)); |
| 407 | write_paint(writer, paint, kGeometry_PaintUsage | kRespectsStroke_PaintUsage); |
| 408 | } |
| 409 | |
| 410 | void SkPipeCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) { |
| 411 | SkPipeWriter writer(this); |
| 412 | writer.write32(pack_verb(SkPipeVerb::kDrawRect)); |
| 413 | writer.write(&rect, sizeof(SkRect)); |
| 414 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 415 | } |
| 416 | |
| 417 | void SkPipeCanvas::onDrawOval(const SkRect& rect, const SkPaint& paint) { |
| 418 | SkPipeWriter writer(this); |
| 419 | writer.write32(pack_verb(SkPipeVerb::kDrawOval)); |
| 420 | writer.write(&rect, sizeof(SkRect)); |
| 421 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 422 | } |
| 423 | |
| 424 | void SkPipeCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| 425 | SkPipeWriter writer(this); |
| 426 | writer.write32(pack_verb(SkPipeVerb::kDrawRRect)); |
| 427 | write_rrect(&writer, rrect); |
| 428 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 429 | } |
| 430 | |
| 431 | void SkPipeCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint) { |
| 432 | SkPipeWriter writer(this); |
| 433 | writer.write32(pack_verb(SkPipeVerb::kDrawDRRect)); |
| 434 | write_rrect(&writer, outer); |
| 435 | write_rrect(&writer, inner); |
| 436 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 437 | } |
| 438 | |
| 439 | void SkPipeCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { |
| 440 | SkPipeWriter writer(this); |
| 441 | writer.write32(pack_verb(SkPipeVerb::kDrawPath)); |
| 442 | writer.writePath(path); |
| 443 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 444 | } |
| 445 | |
| 446 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 447 | |
| 448 | static sk_sp<SkImage> make_from_bitmap(const SkBitmap& bitmap) { |
| 449 | // If we just "make" an image, it will force a CPU copy (if its mutable), only to have |
| 450 | // us then either find it in our cache, or compress and send it. |
| 451 | // |
| 452 | // Better could be to look it up in our cache first, and only create/compress it if we have to. |
| 453 | // |
| 454 | // But for now, just do the dumb thing... |
| 455 | return SkImage::MakeFromBitmap(bitmap); |
| 456 | } |
| 457 | |
| 458 | void SkPipeCanvas::onDrawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y, |
| 459 | const SkPaint* paint) { |
| 460 | sk_sp<SkImage> image = make_from_bitmap(bitmap); |
| 461 | if (image) { |
| 462 | this->onDrawImage(image.get(), x, y, paint); |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | void SkPipeCanvas::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst, |
| 467 | const SkPaint* paint, SrcRectConstraint constraint) { |
| 468 | sk_sp<SkImage> image = make_from_bitmap(bitmap); |
| 469 | if (image) { |
| 470 | this->onDrawImageRect(image.get(), src, dst, paint, constraint); |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | void SkPipeCanvas::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, |
| 475 | const SkRect& dst, const SkPaint* paint) { |
| 476 | sk_sp<SkImage> image = make_from_bitmap(bitmap); |
| 477 | if (image) { |
| 478 | this->onDrawImageNine(image.get(), center, dst, paint); |
| 479 | } |
| 480 | } |
| 481 | |
| 482 | void SkPipeCanvas::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice, |
| 483 | const SkRect& dst, const SkPaint* paint) { |
| 484 | sk_sp<SkImage> image = make_from_bitmap(bitmap); |
| 485 | if (image) { |
| 486 | this->onDrawImageLattice(image.get(), lattice, dst, paint); |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 491 | |
| 492 | void SkPipeCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, |
| 493 | const SkPaint* paint) { |
| 494 | unsigned extra = 0; |
| 495 | if (paint) { |
| 496 | extra |= kHasPaint_DrawImageMask; |
| 497 | } |
| 498 | SkPipeWriter writer(this); |
| 499 | writer.write32(pack_verb(SkPipeVerb::kDrawImage, extra)); |
| 500 | writer.writeImage(image); |
| 501 | writer.writeScalar(left); |
| 502 | writer.writeScalar(top); |
| 503 | if (paint) { |
| 504 | write_paint(writer, *paint, kImage_PaintUsage); |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | void SkPipeCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, |
| 509 | const SkPaint* paint, SrcRectConstraint constraint) { |
| 510 | SkASSERT(0 == ((unsigned)constraint & ~1)); |
| 511 | unsigned extra = (unsigned)constraint; |
| 512 | if (paint) { |
| 513 | extra |= kHasPaint_DrawImageRectMask; |
| 514 | } |
| 515 | if (src) { |
| 516 | extra |= kHasSrcRect_DrawImageRectMask; |
| 517 | } |
| 518 | |
| 519 | SkPipeWriter writer(this); |
| 520 | writer.write32(pack_verb(SkPipeVerb::kDrawImageRect, extra)); |
| 521 | writer.writeImage(image); |
| 522 | if (src) { |
| 523 | writer.write(src, sizeof(*src)); |
| 524 | } |
| 525 | writer.write(&dst, sizeof(dst)); |
| 526 | if (paint) { |
| 527 | write_paint(writer, *paint, kImage_PaintUsage); |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | void SkPipeCanvas::onDrawImageNine(const SkImage* image, const SkIRect& center, const SkRect& dst, |
| 532 | const SkPaint* paint) { |
| 533 | unsigned extra = 0; |
| 534 | if (paint) { |
| 535 | extra |= kHasPaint_DrawImageNineMask; |
| 536 | } |
| 537 | SkPipeWriter writer(this); |
| 538 | writer.write32(pack_verb(SkPipeVerb::kDrawImageNine, extra)); |
| 539 | writer.writeImage(image); |
| 540 | writer.write(¢er, sizeof(center)); |
| 541 | writer.write(&dst, sizeof(dst)); |
| 542 | if (paint) { |
| 543 | write_paint(writer, *paint, kImage_PaintUsage); |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | void SkPipeCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice, |
| 548 | const SkRect& dst, const SkPaint* paint) { |
| 549 | unsigned extra = 0; |
| 550 | if (paint) { |
| 551 | extra |= kHasPaint_DrawImageLatticeMask; |
| 552 | } |
| 553 | if (lattice.fFlags) { |
| 554 | extra |= kHasFlags_DrawImageLatticeMask; |
| 555 | } |
| 556 | if (lattice.fXCount >= kCount_DrawImageLatticeMask) { |
| 557 | extra |= kCount_DrawImageLatticeMask << kXCount_DrawImageLatticeShift; |
| 558 | } else { |
| 559 | extra |= lattice.fXCount << kXCount_DrawImageLatticeShift; |
| 560 | } |
| 561 | if (lattice.fYCount >= kCount_DrawImageLatticeMask) { |
| 562 | extra |= kCount_DrawImageLatticeMask << kYCount_DrawImageLatticeShift; |
| 563 | } else { |
| 564 | extra |= lattice.fYCount << kYCount_DrawImageLatticeShift; |
| 565 | } |
| 566 | |
| 567 | SkPipeWriter writer(this); |
| 568 | writer.write32(pack_verb(SkPipeVerb::kDrawImageLattice, extra)); |
| 569 | writer.writeImage(image); |
| 570 | if (lattice.fXCount >= kCount_DrawImageLatticeMask) { |
| 571 | writer.write32(lattice.fXCount); |
| 572 | } |
| 573 | if (lattice.fYCount >= kCount_DrawImageLatticeMask) { |
| 574 | writer.write32(lattice.fYCount); |
| 575 | } |
| 576 | // Often these divs will be small (8 or 16 bits). Consider sniffing that and writing a flag |
| 577 | // so we can store them smaller. |
| 578 | writer.write(lattice.fXDivs, lattice.fXCount * sizeof(int32_t)); |
| 579 | writer.write(lattice.fYDivs, lattice.fYCount * sizeof(int32_t)); |
| 580 | if (lattice.fFlags) { |
| 581 | int32_t count = (lattice.fXCount + 1) * (lattice.fYCount + 1); |
| 582 | SkASSERT(count > 0); |
| 583 | write_pad(&writer, lattice.fFlags, count); |
| 584 | } |
| 585 | writer.write(&dst, sizeof(dst)); |
| 586 | if (paint) { |
| 587 | write_paint(writer, *paint, kImage_PaintUsage); |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 592 | |
| 593 | void SkPipeCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| 594 | const SkPaint& paint) { |
| 595 | SkASSERT(byteLength); |
| 596 | |
| 597 | bool compact = fits_in(byteLength, 24); |
| 598 | |
| 599 | SkPipeWriter writer(this); |
| 600 | writer.write32(pack_verb(SkPipeVerb::kDrawText, compact ? (unsigned)byteLength : 0)); |
| 601 | if (!compact) { |
| 602 | writer.write32(SkToU32(byteLength)); |
| 603 | } |
| 604 | write_pad(&writer, text, byteLength); |
| 605 | writer.writeScalar(x); |
| 606 | writer.writeScalar(y); |
| 607 | write_paint(writer, paint, kText_PaintUsage); |
| 608 | } |
| 609 | |
| 610 | void SkPipeCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], |
| 611 | const SkPaint& paint) { |
| 612 | SkASSERT(byteLength); |
| 613 | |
| 614 | bool compact = fits_in(byteLength, 24); |
| 615 | |
| 616 | SkPipeWriter writer(this); |
| 617 | writer.write32(pack_verb(SkPipeVerb::kDrawPosText, compact ? (unsigned)byteLength : 0)); |
| 618 | if (!compact) { |
| 619 | writer.write32(SkToU32(byteLength)); |
| 620 | } |
| 621 | write_pad(&writer, text, byteLength); |
| 622 | writer.writePointArray(pos, paint.countText(text, byteLength)); |
| 623 | write_paint(writer, paint, kText_PaintUsage); |
| 624 | } |
| 625 | |
| 626 | void SkPipeCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], |
| 627 | SkScalar constY, const SkPaint& paint) { |
| 628 | SkASSERT(byteLength); |
| 629 | |
| 630 | bool compact = fits_in(byteLength, 24); |
| 631 | |
| 632 | SkPipeWriter writer(this); |
| 633 | writer.write32(pack_verb(SkPipeVerb::kDrawPosTextH, compact ? (unsigned)byteLength : 0)); |
| 634 | if (!compact) { |
| 635 | writer.write32(SkToU32(byteLength)); |
| 636 | } |
| 637 | write_pad(&writer, text, byteLength); |
| 638 | writer.writeScalarArray(xpos, paint.countText(text, byteLength)); |
| 639 | writer.writeScalar(constY); |
| 640 | write_paint(writer, paint, kText_PaintUsage); |
| 641 | } |
| 642 | |
| 643 | void SkPipeCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, |
| 644 | const SkMatrix* matrix, const SkPaint& paint) { |
| 645 | SkASSERT(byteLength > 0); |
| 646 | |
| 647 | unsigned extra = 0; |
| 648 | if (byteLength <= kTextLength_DrawTextOnPathMask) { |
| 649 | extra |= byteLength; |
| 650 | } // else we will write the length after the packedverb |
| 651 | SkMatrix::TypeMask tm = matrix ? matrix->getType() : SkMatrix::kIdentity_Mask; |
| 652 | extra |= (unsigned)tm << kMatrixType_DrawTextOnPathShift; |
| 653 | |
| 654 | SkPipeWriter writer(this); |
| 655 | writer.write32(pack_verb(SkPipeVerb::kDrawTextOnPath, extra)); |
| 656 | if (byteLength > kTextLength_DrawTextOnPathMask) { |
| 657 | writer.write32(byteLength); |
| 658 | } |
| 659 | write_pad(&writer, text, byteLength); |
| 660 | writer.writePath(path); |
| 661 | if (matrix) { |
| 662 | write_sparse_matrix(&writer, *matrix); |
| 663 | } |
| 664 | write_paint(writer, paint, kText_PaintUsage); |
| 665 | } |
| 666 | |
| 667 | void SkPipeCanvas::onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[], |
| 668 | const SkRect* cull, const SkPaint& paint) { |
| 669 | SkASSERT(byteLength); |
| 670 | |
| 671 | bool compact = fits_in(byteLength, 23); |
| 672 | unsigned extra = compact ? (byteLength << 1) : 0; |
| 673 | if (cull) { |
| 674 | extra |= 1; |
| 675 | } |
| 676 | |
| 677 | SkPipeWriter writer(this); |
| 678 | writer.write32(pack_verb(SkPipeVerb::kDrawTextRSXform, extra)); |
| 679 | if (!compact) { |
| 680 | writer.write32(SkToU32(byteLength)); |
| 681 | } |
| 682 | write_pad(&writer, text, byteLength); |
| 683 | |
| 684 | int count = paint.countText(text, byteLength); |
| 685 | writer.write32(count); // maybe we can/should store this in extra as well? |
| 686 | writer.write(xform, count * sizeof(SkRSXform)); |
| 687 | if (cull) { |
| 688 | writer.writeRect(*cull); |
| 689 | } |
| 690 | write_paint(writer, paint, kText_PaintUsage); |
| 691 | } |
| 692 | |
| 693 | void SkPipeCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, |
| 694 | const SkPaint &paint) { |
| 695 | SkPipeWriter writer(this); |
| 696 | writer.write32(pack_verb(SkPipeVerb::kDrawTextBlob, 0)); |
| 697 | blob->flatten(writer); |
| 698 | writer.writeScalar(x); |
| 699 | writer.writeScalar(y); |
| 700 | write_paint(writer, paint, kTextBlob_PaintUsage); |
| 701 | } |
| 702 | |
| 703 | void SkPipeCanvas::onDrawPicture(const SkPicture* picture, const SkMatrix* matrix, |
| 704 | const SkPaint* paint) { |
| 705 | unsigned extra = fDeduper->findOrDefinePicture(const_cast<SkPicture*>(picture)); |
| 706 | if (matrix) { |
| 707 | extra |= kHasMatrix_DrawPictureExtra; |
| 708 | } |
| 709 | if (paint) { |
| 710 | extra |= kHasPaint_DrawPictureExtra; |
| 711 | } |
| 712 | SkPipeWriter writer(this); |
| 713 | writer.write32(pack_verb(SkPipeVerb::kDrawPicture, extra)); |
| 714 | if (matrix) { |
| 715 | writer.writeMatrix(*matrix); |
| 716 | } |
| 717 | if (paint) { |
| 718 | write_paint(writer, *paint, kSaveLayer_PaintUsage); |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | void SkPipeCanvas::onDrawRegion(const SkRegion& region, const SkPaint& paint) { |
| 723 | size_t size = region.writeToMemory(nullptr); |
| 724 | unsigned extra = 0; |
| 725 | if (fits_in(size, 24)) { |
| 726 | extra = SkToUInt(size); |
| 727 | } |
| 728 | |
| 729 | SkPipeWriter writer(this); |
| 730 | writer.write32(pack_verb(SkPipeVerb::kDrawRegion, extra)); |
| 731 | if (0 == extra) { |
| 732 | writer.write32(size); |
| 733 | } |
| 734 | SkAutoSMalloc<2048> storage(size); |
| 735 | region.writeToMemory(storage.get()); |
| 736 | write_pad(&writer, storage.get(), size); |
| 737 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 738 | } |
| 739 | |
| 740 | void SkPipeCanvas::onDrawVertices(VertexMode vmode, int vertexCount, |
| 741 | const SkPoint vertices[], const SkPoint texs[], |
| 742 | const SkColor colors[], SkXfermode* xmode, |
| 743 | const uint16_t indices[], int indexCount, |
| 744 | const SkPaint& paint) { |
| 745 | SkASSERT(vertexCount > 0); |
| 746 | |
| 747 | unsigned extra = 0; |
| 748 | if (vertexCount <= kVCount_DrawVerticesMask) { |
| 749 | extra |= vertexCount; |
| 750 | } |
| 751 | extra |= (unsigned)vmode << kVMode_DrawVerticesShift; |
| 752 | |
| 753 | SkXfermode::Mode mode = SkXfermode::kModulate_Mode; |
| 754 | if (xmode && !SkXfermode::AsMode(xmode, &mode)) { |
| 755 | mode = (SkXfermode::Mode)0xFF; // sentinel for read the xfer later |
| 756 | } |
| 757 | extra |= (unsigned)mode << kXMode_DrawVerticesShift; |
| 758 | |
| 759 | if (texs) { |
| 760 | extra |= kHasTex_DrawVerticesMask; |
| 761 | } |
| 762 | if (colors) { |
| 763 | extra |= kHasColors_DrawVerticesMask; |
| 764 | } |
| 765 | if (indexCount > 0) { |
| 766 | extra |= kHasIndices_DrawVerticesMask; |
| 767 | } |
| 768 | |
| 769 | SkPipeWriter writer(this); |
| 770 | writer.write32(pack_verb(SkPipeVerb::kDrawVertices, extra)); |
| 771 | if (vertexCount > kVCount_DrawVerticesMask) { |
| 772 | writer.write32(vertexCount); |
| 773 | } |
| 774 | if (mode == (SkXfermode::Mode)0xFF) { |
| 775 | writer.writeFlattenable(xmode); |
| 776 | } |
| 777 | writer.write(vertices, vertexCount * sizeof(SkPoint)); |
| 778 | if (texs) { |
| 779 | writer.write(texs, vertexCount * sizeof(SkPoint)); |
| 780 | } |
| 781 | if (colors) { |
| 782 | writer.write(colors, vertexCount * sizeof(SkColor)); |
| 783 | } |
| 784 | if (indexCount > 0) { |
| 785 | writer.write32(indexCount); |
| 786 | SkASSERT(SkIsAlign2(indexCount)); |
| 787 | writer.write(indices, indexCount * sizeof(uint16_t)); |
| 788 | } |
| 789 | write_paint(writer, paint, kVertices_PaintUsage); |
| 790 | } |
| 791 | |
| 792 | void SkPipeCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], |
| 793 | const SkPoint texCoords[4], SkXfermode* xfer, |
| 794 | const SkPaint& paint) { |
| 795 | SkPipeWriter writer(this); |
| 796 | unsigned extra = 0; |
| 797 | SkXfermode::Mode mode = SkXfermode::kModulate_Mode; |
| 798 | if (xfer && !xfer->asMode(&mode)) { |
| 799 | mode = (SkXfermode::Mode)kExplicitXfer_DrawPatchExtraValue; |
| 800 | } else { |
| 801 | xfer = nullptr; // signal that we're using the mode enum |
| 802 | } |
| 803 | SkASSERT(0 == (mode & ~kModeEnum_DrawPatchExtraMask)); |
| 804 | extra = (unsigned)mode; |
| 805 | if (colors) { |
| 806 | extra |= kHasColors_DrawPatchExtraMask; |
| 807 | } |
| 808 | if (texCoords) { |
| 809 | extra |= kHasTexture_DrawPatchExtraMask; |
| 810 | } |
| 811 | writer.write32(pack_verb(SkPipeVerb::kDrawPatch, extra)); |
| 812 | writer.write(cubics, sizeof(SkPoint) * 12); |
| 813 | if (colors) { |
| 814 | writer.write(colors, sizeof(SkColor) * 4); |
| 815 | } |
| 816 | if (texCoords) { |
| 817 | writer.write(texCoords, sizeof(SkPoint) * 4); |
| 818 | } |
| 819 | if (xfer) { |
| 820 | xfer->flatten(writer); |
| 821 | } |
| 822 | write_paint(writer, paint, kGeometry_PaintUsage); |
| 823 | } |
| 824 | |
| 825 | void SkPipeCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* data) { |
| 826 | const size_t len = strlen(key) + 1; // must write the trailing 0 |
| 827 | bool compact = fits_in(len, 23); |
| 828 | uint32_t extra = compact ? (unsigned)len : 0; |
| 829 | extra <<= 1; // make room for has_data_sentinel |
| 830 | if (data) { |
| 831 | extra |= 1; |
| 832 | } |
| 833 | |
| 834 | fStream->write32(pack_verb(SkPipeVerb::kDrawAnnotation, extra)); |
| 835 | fStream->write(&rect, sizeof(SkRect)); |
| 836 | if (!compact) { |
| 837 | fStream->write32(SkToU32(len)); |
| 838 | } |
| 839 | write_pad(fStream, key, len); |
| 840 | if (data) { |
| 841 | fStream->write32(SkToU32(data->size())); |
| 842 | write_pad(fStream, data->data(), data->size()); |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 847 | |
| 848 | class A8Serializer : public SkPixelSerializer { |
| 849 | protected: |
| 850 | bool onUseEncodedData(const void* data, size_t len) { |
| 851 | return true; |
| 852 | } |
| 853 | |
| 854 | SkData* onEncode(const SkPixmap& pmap) { |
| 855 | if (kAlpha_8_SkColorType == pmap.colorType()) { |
| 856 | SkDynamicMemoryWStream stream; |
| 857 | stream.write("skiaimgf", 8); |
| 858 | stream.write32(pmap.width()); |
| 859 | stream.write32(pmap.height()); |
| 860 | stream.write16(pmap.colorType()); |
| 861 | stream.write16(pmap.alphaType()); |
| 862 | stream.write32(0); // no colorspace for now |
| 863 | for (int y = 0; y < pmap.height(); ++y) { |
| 864 | stream.write(pmap.addr8(0, y), pmap.width()); |
| 865 | } |
| 866 | return stream.detachAsData().release(); |
| 867 | } |
| 868 | return nullptr; |
| 869 | } |
| 870 | }; |
| 871 | |
| 872 | static bool show_deduper_traffic = false; |
| 873 | |
| 874 | int SkPipeDeduper::findOrDefineImage(SkImage* image) { |
| 875 | int index = fImages.find(image->uniqueID()); |
| 876 | SkASSERT(index >= 0); |
| 877 | if (index) { |
| 878 | if (show_deduper_traffic) { |
| 879 | SkDebugf(" reuseImage(%d)\n", index - 1); |
| 880 | } |
| 881 | return index; |
| 882 | } |
| 883 | |
| 884 | A8Serializer serial; |
| 885 | sk_sp<SkData> data(image->encode(&serial)); |
| 886 | if (!data) { |
| 887 | data.reset(image->encode()); |
| 888 | } |
| 889 | if (data) { |
| 890 | index = fImages.add(image->uniqueID()); |
| 891 | SkASSERT(index > 0); |
| 892 | SkASSERT(fits_in(index, 24)); |
| 893 | fStream->write32(pack_verb(SkPipeVerb::kDefineImage, index)); |
| 894 | |
| 895 | uint32_t len = SkToU32(data->size()); |
| 896 | fStream->write32(SkAlign4(len)); |
| 897 | write_pad(fStream, data->data(), len); |
| 898 | |
| 899 | if (show_deduper_traffic) { |
| 900 | int size = image->width() * image->height() << 2; |
| 901 | SkDebugf(" defineImage(%d) %d -> %d\n", index - 1, size, len); |
| 902 | } |
| 903 | return index; |
| 904 | } |
| 905 | SkDebugf("+++ failed to encode image [%d %d]\n", image->width(), image->height()); |
| 906 | return 0; // failed to encode |
| 907 | } |
| 908 | |
| 909 | int SkPipeDeduper::findOrDefinePicture(SkPicture* picture) { |
| 910 | int index = fPictures.find(picture->uniqueID()); |
| 911 | SkASSERT(index >= 0); |
| 912 | if (index) { |
| 913 | if (show_deduper_traffic) { |
| 914 | SkDebugf(" reusePicture(%d)\n", index - 1); |
| 915 | } |
| 916 | return index; |
| 917 | } |
| 918 | |
| 919 | size_t prevWritten = fStream->bytesWritten(); |
| 920 | unsigned extra = 0; // 0 means we're defining a new picture, non-zero means undef_index + 1 |
| 921 | fStream->write32(pack_verb(SkPipeVerb::kDefinePicture, extra)); |
| 922 | const SkRect cull = picture->cullRect(); |
| 923 | fStream->write(&cull, sizeof(cull)); |
| 924 | picture->playback(fPipeCanvas); |
| 925 | // call fPictures.add *after* we're written the picture, so that any nested pictures will have |
| 926 | // already been defined, and we get the "last" index value. |
| 927 | index = fPictures.add(picture->uniqueID()); |
| 928 | ASSERT_FITS_IN(index, kObjectDefinitionBits); |
| 929 | fStream->write32(pack_verb(SkPipeVerb::kEndPicture, index)); |
| 930 | |
| 931 | SkDebugf(" definePicture(%d) %d\n", |
| 932 | index - 1, SkToU32(fStream->bytesWritten() - prevWritten)); |
| 933 | return index; |
| 934 | } |
| 935 | |
| 936 | static sk_sp<SkData> encode(SkTypeface* tf) { |
| 937 | SkDynamicMemoryWStream stream; |
| 938 | tf->serialize(&stream); |
| 939 | return sk_sp<SkData>(stream.detachAsData()); |
| 940 | } |
| 941 | |
| 942 | int SkPipeDeduper::findOrDefineTypeface(SkTypeface* typeface) { |
| 943 | if (!typeface) { |
| 944 | return 0; // default |
| 945 | } |
| 946 | |
| 947 | int index = fTypefaces.find(typeface->uniqueID()); |
| 948 | SkASSERT(index >= 0); |
| 949 | if (index) { |
| 950 | if (show_deduper_traffic) { |
| 951 | SkDebugf(" reuseTypeface(%d)\n", index - 1); |
| 952 | } |
| 953 | return index; |
| 954 | } |
| 955 | |
| 956 | sk_sp<SkData> data = fTFSerializer ? fTFSerializer->serialize(typeface) : encode(typeface); |
| 957 | if (data) { |
| 958 | index = fTypefaces.add(typeface->uniqueID()); |
| 959 | SkASSERT(index > 0); |
| 960 | SkASSERT(fits_in(index, 24)); |
| 961 | fStream->write32(pack_verb(SkPipeVerb::kDefineTypeface, index)); |
| 962 | |
| 963 | uint32_t len = SkToU32(data->size()); |
| 964 | fStream->write32(SkAlign4(len)); |
| 965 | write_pad(fStream, data->data(), len); |
| 966 | |
| 967 | if (show_deduper_traffic) { |
| 968 | SkDebugf(" defineTypeface(%d) %d\n", index - 1, len); |
| 969 | } |
| 970 | return index; |
| 971 | } |
| 972 | SkDebugf("+++ failed to encode typeface %d\n", typeface->uniqueID()); |
| 973 | return 0; // failed to encode |
| 974 | } |
| 975 | |
| 976 | int SkPipeDeduper::findOrDefineFactory(SkFlattenable* flattenable) { |
| 977 | if (!flattenable) { |
| 978 | return 0; |
| 979 | } |
| 980 | |
| 981 | int index = fFactories.find(flattenable->getFactory()); |
| 982 | SkASSERT(index >= 0); |
| 983 | if (index) { |
| 984 | if (show_deduper_traffic) { |
| 985 | SkDebugf(" reuseFactory(%d)\n", index - 1); |
| 986 | } |
| 987 | return index; |
| 988 | } |
| 989 | |
| 990 | index = fFactories.add(flattenable->getFactory()); |
| 991 | ASSERT_FITS_IN(index, kIndex_DefineFactoryExtraBits); |
| 992 | const char* name = flattenable->getTypeName(); |
| 993 | size_t len = strlen(name); |
| 994 | ASSERT_FITS_IN(len, kNameLength_DefineFactoryExtraBits); |
| 995 | unsigned extra = (index << kNameLength_DefineFactoryExtraBits) | len; |
| 996 | size_t prevWritten = fStream->bytesWritten(); |
| 997 | fStream->write32(pack_verb(SkPipeVerb::kDefineFactory, extra)); |
| 998 | write_pad(fStream, name, len + 1); |
| 999 | if (false) { |
| 1000 | SkDebugf(" defineFactory(%d) %d %s\n", |
| 1001 | index - 1, SkToU32(fStream->bytesWritten() - prevWritten), name); |
| 1002 | } |
| 1003 | return index; |
| 1004 | } |
| 1005 | |
| 1006 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 1007 | #include "SkPipe.h" |
| 1008 | |
| 1009 | class SkPipeSerializer::Impl { |
| 1010 | public: |
| 1011 | SkPipeDeduper fDeduper; |
| 1012 | std::unique_ptr<SkPipeCanvas> fCanvas; |
| 1013 | }; |
| 1014 | |
| 1015 | SkPipeSerializer::SkPipeSerializer() : fImpl(new Impl) {} |
| 1016 | |
| 1017 | SkPipeSerializer::~SkPipeSerializer() { |
| 1018 | if (fImpl->fCanvas) { |
| 1019 | this->endWrite(); |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | void SkPipeSerializer::setTypefaceSerializer(SkTypefaceSerializer* tfs) { |
| 1024 | fImpl->fDeduper.setTypefaceSerializer(tfs); |
| 1025 | } |
| 1026 | |
| 1027 | void SkPipeSerializer::resetCache() { |
| 1028 | fImpl->fDeduper.resetCaches(); |
| 1029 | } |
| 1030 | |
reed | 262052c | 2016-09-15 14:24:53 -0700 | [diff] [blame^] | 1031 | sk_sp<SkData> SkPipeSerializer::writeImage(SkImage* image) { |
| 1032 | SkDynamicMemoryWStream stream; |
| 1033 | this->writeImage(image, &stream); |
| 1034 | return stream.detachAsData(); |
reed | 54dc487 | 2016-09-13 08:09:45 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
reed | 262052c | 2016-09-15 14:24:53 -0700 | [diff] [blame^] | 1037 | sk_sp<SkData> SkPipeSerializer::writePicture(SkPicture* picture) { |
| 1038 | SkDynamicMemoryWStream stream; |
| 1039 | this->writePicture(picture, &stream); |
| 1040 | return stream.detachAsData(); |
| 1041 | } |
| 1042 | |
| 1043 | void SkPipeSerializer::writePicture(SkPicture* picture, SkWStream* stream) { |
| 1044 | int index = fImpl->fDeduper.findPicture(picture); |
| 1045 | if (0 == index) { |
| 1046 | // Try to define the picture |
| 1047 | this->beginWrite(picture->cullRect(), stream); |
| 1048 | index = fImpl->fDeduper.findOrDefinePicture(picture); |
| 1049 | this->endWrite(); |
| 1050 | } |
| 1051 | stream->write32(pack_verb(SkPipeVerb::kWritePicture, index)); |
| 1052 | } |
| 1053 | |
| 1054 | void SkPipeSerializer::writeImage(SkImage* image, SkWStream* stream) { |
reed | 7e3ba9f | 2016-09-13 17:25:19 -0700 | [diff] [blame] | 1055 | int index = fImpl->fDeduper.findImage(image); |
| 1056 | if (0 == index) { |
| 1057 | // Try to define the image |
| 1058 | fImpl->fDeduper.setStream(stream); |
| 1059 | index = fImpl->fDeduper.findOrDefineImage(image); |
| 1060 | } |
| 1061 | stream->write32(pack_verb(SkPipeVerb::kWriteImage, index)); |
reed | 54dc487 | 2016-09-13 08:09:45 -0700 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | SkCanvas* SkPipeSerializer::beginWrite(const SkRect& cull, SkWStream* stream) { |
| 1065 | SkASSERT(nullptr == fImpl->fCanvas); |
| 1066 | fImpl->fCanvas.reset(new SkPipeCanvas(cull, &fImpl->fDeduper, stream)); |
| 1067 | fImpl->fDeduper.setStream(stream); |
| 1068 | fImpl->fDeduper.setCanvas(fImpl->fCanvas.get()); |
| 1069 | return fImpl->fCanvas.get(); |
| 1070 | } |
| 1071 | |
| 1072 | void SkPipeSerializer::endWrite() { |
| 1073 | fImpl->fCanvas->restoreToCount(1); |
| 1074 | fImpl->fCanvas.reset(nullptr); |
reed | 7e3ba9f | 2016-09-13 17:25:19 -0700 | [diff] [blame] | 1075 | fImpl->fDeduper.setCanvas(nullptr); |
reed | 54dc487 | 2016-09-13 08:09:45 -0700 | [diff] [blame] | 1076 | } |