PictureTest.cpp revision 986d681f3e7a7eb6febd9df9fe21a8d277ba2296
1/* 2 * Copyright 2012 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 "SkBitmapDevice.h" 9#include "SkBlurImageFilter.h" 10#include "SkCanvas.h" 11#include "SkColorPriv.h" 12#include "SkDashPathEffect.h" 13#include "SkData.h" 14#include "SkDecodingImageGenerator.h" 15#include "SkError.h" 16#if SK_SUPPORT_GPU 17#include "SkGpuDevice.h" 18#endif 19#include "SkImageEncoder.h" 20#include "SkImageGenerator.h" 21#include "SkPaint.h" 22#include "SkPicture.h" 23#include "SkPictureRecorder.h" 24#include "SkPictureUtils.h" 25#include "SkRRect.h" 26#include "SkRandom.h" 27#include "SkShader.h" 28#include "SkStream.h" 29 30#if SK_SUPPORT_GPU 31#include "SkSurface.h" 32#include "GrContextFactory.h" 33#include "GrPictureUtils.h" 34#endif 35#include "Test.h" 36 37#include "SkLumaColorFilter.h" 38#include "SkColorFilterImageFilter.h" 39 40static const int gColorScale = 30; 41static const int gColorOffset = 60; 42 43static void make_bm(SkBitmap* bm, int w, int h, SkColor color, bool immutable) { 44 bm->allocN32Pixels(w, h); 45 bm->eraseColor(color); 46 if (immutable) { 47 bm->setImmutable(); 48 } 49} 50 51static void make_checkerboard(SkBitmap* bm, int w, int h, bool immutable) { 52 SkASSERT(w % 2 == 0); 53 SkASSERT(h % 2 == 0); 54 bm->allocPixels(SkImageInfo::Make(w, h, kAlpha_8_SkColorType, 55 kPremul_SkAlphaType)); 56 SkAutoLockPixels lock(*bm); 57 for (int y = 0; y < h; y += 2) { 58 uint8_t* s = bm->getAddr8(0, y); 59 for (int x = 0; x < w; x += 2) { 60 *s++ = 0xFF; 61 *s++ = 0x00; 62 } 63 s = bm->getAddr8(0, y + 1); 64 for (int x = 0; x < w; x += 2) { 65 *s++ = 0x00; 66 *s++ = 0xFF; 67 } 68 } 69 if (immutable) { 70 bm->setImmutable(); 71 } 72} 73 74static void init_paint(SkPaint* paint, const SkBitmap &bm) { 75 SkShader* shader = SkShader::CreateBitmapShader(bm, 76 SkShader::kClamp_TileMode, 77 SkShader::kClamp_TileMode); 78 paint->setShader(shader)->unref(); 79} 80 81typedef void (*DrawBitmapProc)(SkCanvas*, const SkBitmap&, 82 const SkBitmap&, const SkPoint&, 83 SkTDArray<SkPixelRef*>* usedPixRefs); 84 85static void drawpaint_proc(SkCanvas* canvas, const SkBitmap& bm, 86 const SkBitmap& altBM, const SkPoint& pos, 87 SkTDArray<SkPixelRef*>* usedPixRefs) { 88 SkPaint paint; 89 init_paint(&paint, bm); 90 91 canvas->drawPaint(paint); 92 *usedPixRefs->append() = bm.pixelRef(); 93} 94 95static void drawpoints_proc(SkCanvas* canvas, const SkBitmap& bm, 96 const SkBitmap& altBM, const SkPoint& pos, 97 SkTDArray<SkPixelRef*>* usedPixRefs) { 98 SkPaint paint; 99 init_paint(&paint, bm); 100 101 // draw a rect 102 SkPoint points[5] = { 103 { pos.fX, pos.fY }, 104 { pos.fX + bm.width() - 1, pos.fY }, 105 { pos.fX + bm.width() - 1, pos.fY + bm.height() - 1 }, 106 { pos.fX, pos.fY + bm.height() - 1 }, 107 { pos.fX, pos.fY }, 108 }; 109 110 canvas->drawPoints(SkCanvas::kPolygon_PointMode, 5, points, paint); 111 *usedPixRefs->append() = bm.pixelRef(); 112} 113 114static void drawrect_proc(SkCanvas* canvas, const SkBitmap& bm, 115 const SkBitmap& altBM, const SkPoint& pos, 116 SkTDArray<SkPixelRef*>* usedPixRefs) { 117 SkPaint paint; 118 init_paint(&paint, bm); 119 120 SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; 121 r.offset(pos.fX, pos.fY); 122 123 canvas->drawRect(r, paint); 124 *usedPixRefs->append() = bm.pixelRef(); 125} 126 127static void drawoval_proc(SkCanvas* canvas, const SkBitmap& bm, 128 const SkBitmap& altBM, const SkPoint& pos, 129 SkTDArray<SkPixelRef*>* usedPixRefs) { 130 SkPaint paint; 131 init_paint(&paint, bm); 132 133 SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; 134 r.offset(pos.fX, pos.fY); 135 136 canvas->drawOval(r, paint); 137 *usedPixRefs->append() = bm.pixelRef(); 138} 139 140static void drawrrect_proc(SkCanvas* canvas, const SkBitmap& bm, 141 const SkBitmap& altBM, const SkPoint& pos, 142 SkTDArray<SkPixelRef*>* usedPixRefs) { 143 SkPaint paint; 144 init_paint(&paint, bm); 145 146 SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; 147 r.offset(pos.fX, pos.fY); 148 149 SkRRect rr; 150 rr.setRectXY(r, SkIntToScalar(bm.width())/4, SkIntToScalar(bm.height())/4); 151 canvas->drawRRect(rr, paint); 152 *usedPixRefs->append() = bm.pixelRef(); 153} 154 155static void drawpath_proc(SkCanvas* canvas, const SkBitmap& bm, 156 const SkBitmap& altBM, const SkPoint& pos, 157 SkTDArray<SkPixelRef*>* usedPixRefs) { 158 SkPaint paint; 159 init_paint(&paint, bm); 160 161 SkPath path; 162 path.lineTo(bm.width()/2.0f, SkIntToScalar(bm.height())); 163 path.lineTo(SkIntToScalar(bm.width()), 0); 164 path.close(); 165 path.offset(pos.fX, pos.fY); 166 167 canvas->drawPath(path, paint); 168 *usedPixRefs->append() = bm.pixelRef(); 169} 170 171static void drawbitmap_proc(SkCanvas* canvas, const SkBitmap& bm, 172 const SkBitmap& altBM, const SkPoint& pos, 173 SkTDArray<SkPixelRef*>* usedPixRefs) { 174 canvas->drawBitmap(bm, pos.fX, pos.fY, NULL); 175 *usedPixRefs->append() = bm.pixelRef(); 176} 177 178static void drawbitmap_withshader_proc(SkCanvas* canvas, const SkBitmap& bm, 179 const SkBitmap& altBM, const SkPoint& pos, 180 SkTDArray<SkPixelRef*>* usedPixRefs) { 181 SkPaint paint; 182 init_paint(&paint, bm); 183 184 // The bitmap in the paint is ignored unless we're drawing an A8 bitmap 185 canvas->drawBitmap(altBM, pos.fX, pos.fY, &paint); 186 *usedPixRefs->append() = bm.pixelRef(); 187 *usedPixRefs->append() = altBM.pixelRef(); 188} 189 190static void drawsprite_proc(SkCanvas* canvas, const SkBitmap& bm, 191 const SkBitmap& altBM, const SkPoint& pos, 192 SkTDArray<SkPixelRef*>* usedPixRefs) { 193 const SkMatrix& ctm = canvas->getTotalMatrix(); 194 195 SkPoint p(pos); 196 ctm.mapPoints(&p, 1); 197 198 canvas->drawSprite(bm, (int)p.fX, (int)p.fY, NULL); 199 *usedPixRefs->append() = bm.pixelRef(); 200} 201 202#if 0 203// Although specifiable, this case doesn't seem to make sense (i.e., the 204// bitmap in the shader is never used). 205static void drawsprite_withshader_proc(SkCanvas* canvas, const SkBitmap& bm, 206 const SkBitmap& altBM, const SkPoint& pos, 207 SkTDArray<SkPixelRef*>* usedPixRefs) { 208 SkPaint paint; 209 init_paint(&paint, bm); 210 211 const SkMatrix& ctm = canvas->getTotalMatrix(); 212 213 SkPoint p(pos); 214 ctm.mapPoints(&p, 1); 215 216 canvas->drawSprite(altBM, (int)p.fX, (int)p.fY, &paint); 217 *usedPixRefs->append() = bm.pixelRef(); 218 *usedPixRefs->append() = altBM.pixelRef(); 219} 220#endif 221 222static void drawbitmaprect_proc(SkCanvas* canvas, const SkBitmap& bm, 223 const SkBitmap& altBM, const SkPoint& pos, 224 SkTDArray<SkPixelRef*>* usedPixRefs) { 225 SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; 226 227 r.offset(pos.fX, pos.fY); 228 canvas->drawBitmapRectToRect(bm, NULL, r, NULL); 229 *usedPixRefs->append() = bm.pixelRef(); 230} 231 232static void drawbitmaprect_withshader_proc(SkCanvas* canvas, 233 const SkBitmap& bm, 234 const SkBitmap& altBM, 235 const SkPoint& pos, 236 SkTDArray<SkPixelRef*>* usedPixRefs) { 237 SkPaint paint; 238 init_paint(&paint, bm); 239 240 SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; 241 r.offset(pos.fX, pos.fY); 242 243 // The bitmap in the paint is ignored unless we're drawing an A8 bitmap 244 canvas->drawBitmapRectToRect(altBM, NULL, r, &paint); 245 *usedPixRefs->append() = bm.pixelRef(); 246 *usedPixRefs->append() = altBM.pixelRef(); 247} 248 249static void drawtext_proc(SkCanvas* canvas, const SkBitmap& bm, 250 const SkBitmap& altBM, const SkPoint& pos, 251 SkTDArray<SkPixelRef*>* usedPixRefs) { 252 SkPaint paint; 253 init_paint(&paint, bm); 254 paint.setTextSize(SkIntToScalar(1.5*bm.width())); 255 256 canvas->drawText("0", 1, pos.fX, pos.fY+bm.width(), paint); 257 *usedPixRefs->append() = bm.pixelRef(); 258} 259 260static void drawpostext_proc(SkCanvas* canvas, const SkBitmap& bm, 261 const SkBitmap& altBM, const SkPoint& pos, 262 SkTDArray<SkPixelRef*>* usedPixRefs) { 263 SkPaint paint; 264 init_paint(&paint, bm); 265 paint.setTextSize(SkIntToScalar(1.5*bm.width())); 266 267 SkPoint point = { pos.fX, pos.fY + bm.height() }; 268 canvas->drawPosText("O", 1, &point, paint); 269 *usedPixRefs->append() = bm.pixelRef(); 270} 271 272static void drawtextonpath_proc(SkCanvas* canvas, const SkBitmap& bm, 273 const SkBitmap& altBM, const SkPoint& pos, 274 SkTDArray<SkPixelRef*>* usedPixRefs) { 275 SkPaint paint; 276 277 init_paint(&paint, bm); 278 paint.setTextSize(SkIntToScalar(1.5*bm.width())); 279 280 SkPath path; 281 path.lineTo(SkIntToScalar(bm.width()), 0); 282 path.offset(pos.fX, pos.fY+bm.height()); 283 284 canvas->drawTextOnPath("O", 1, path, NULL, paint); 285 *usedPixRefs->append() = bm.pixelRef(); 286} 287 288static void drawverts_proc(SkCanvas* canvas, const SkBitmap& bm, 289 const SkBitmap& altBM, const SkPoint& pos, 290 SkTDArray<SkPixelRef*>* usedPixRefs) { 291 SkPaint paint; 292 init_paint(&paint, bm); 293 294 SkPoint verts[4] = { 295 { pos.fX, pos.fY }, 296 { pos.fX + bm.width(), pos.fY }, 297 { pos.fX + bm.width(), pos.fY + bm.height() }, 298 { pos.fX, pos.fY + bm.height() } 299 }; 300 SkPoint texs[4] = { { 0, 0 }, 301 { SkIntToScalar(bm.width()), 0 }, 302 { SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }, 303 { 0, SkIntToScalar(bm.height()) } }; 304 uint16_t indices[6] = { 0, 1, 2, 0, 2, 3 }; 305 306 canvas->drawVertices(SkCanvas::kTriangles_VertexMode, 4, verts, texs, NULL, NULL, 307 indices, 6, paint); 308 *usedPixRefs->append() = bm.pixelRef(); 309} 310 311// Return a picture with the bitmaps drawn at the specified positions. 312static SkPicture* record_bitmaps(const SkBitmap bm[], 313 const SkPoint pos[], 314 SkTDArray<SkPixelRef*> analytic[], 315 int count, 316 DrawBitmapProc proc) { 317 SkPictureRecorder recorder; 318 SkCanvas* canvas = recorder.beginRecording(1000, 1000, NULL, 0); 319 for (int i = 0; i < count; ++i) { 320 analytic[i].rewind(); 321 canvas->save(); 322 SkRect clipRect = SkRect::MakeXYWH(pos[i].fX, pos[i].fY, 323 SkIntToScalar(bm[i].width()), 324 SkIntToScalar(bm[i].height())); 325 canvas->clipRect(clipRect, SkRegion::kIntersect_Op); 326 proc(canvas, bm[i], bm[count+i], pos[i], &analytic[i]); 327 canvas->restore(); 328 } 329 return recorder.endRecording(); 330} 331 332static void rand_rect(SkRect* rect, SkRandom& rand, SkScalar W, SkScalar H) { 333 rect->fLeft = rand.nextRangeScalar(-W, 2*W); 334 rect->fTop = rand.nextRangeScalar(-H, 2*H); 335 rect->fRight = rect->fLeft + rand.nextRangeScalar(0, W); 336 rect->fBottom = rect->fTop + rand.nextRangeScalar(0, H); 337 338 // we integralize rect to make our tests more predictable, since Gather is 339 // a little sloppy. 340 SkIRect ir; 341 rect->round(&ir); 342 rect->set(ir); 343} 344 345static void draw(SkPicture* pic, int width, int height, SkBitmap* result) { 346 make_bm(result, width, height, SK_ColorBLACK, false); 347 348 SkCanvas canvas(*result); 349 canvas.drawPicture(*pic); 350} 351 352template <typename T> int find_index(const T* array, T elem, int count) { 353 for (int i = 0; i < count; ++i) { 354 if (array[i] == elem) { 355 return i; 356 } 357 } 358 return -1; 359} 360 361// Return true if 'ref' is found in array[] 362static bool find(SkPixelRef const * const * array, SkPixelRef const * ref, int count) { 363 return find_index<const SkPixelRef*>(array, ref, count) >= 0; 364} 365 366// Look at each pixel that is inside 'subset', and if its color appears in 367// colors[], find the corresponding value in refs[] and append that ref into 368// array, skipping duplicates of the same value. 369// Note that gathering pixelRefs from rendered colors suffers from the problem 370// that multiple simultaneous textures (e.g., A8 for alpha and 8888 for color) 371// isn't easy to reconstruct. 372static void gather_from_image(const SkBitmap& bm, SkPixelRef* const refs[], 373 int count, SkTDArray<SkPixelRef*>* array, 374 const SkRect& subset) { 375 SkIRect ir; 376 subset.roundOut(&ir); 377 378 if (!ir.intersect(0, 0, bm.width()-1, bm.height()-1)) { 379 return; 380 } 381 382 // Since we only want to return unique values in array, when we scan we just 383 // set a bit for each index'd color found. In practice we only have a few 384 // distinct colors, so we just use an int's bits as our array. Hence the 385 // assert that count <= number-of-bits-in-our-int. 386 SkASSERT((unsigned)count <= 32); 387 uint32_t bitarray = 0; 388 389 SkAutoLockPixels alp(bm); 390 391 for (int y = ir.fTop; y < ir.fBottom; ++y) { 392 for (int x = ir.fLeft; x < ir.fRight; ++x) { 393 SkPMColor pmc = *bm.getAddr32(x, y); 394 // the only good case where the color is not found would be if 395 // the color is transparent, meaning no bitmap was drawn in that 396 // pixel. 397 if (pmc) { 398 uint32_t index = SkGetPackedR32(pmc); 399 SkASSERT(SkGetPackedG32(pmc) == index); 400 SkASSERT(SkGetPackedB32(pmc) == index); 401 if (0 == index) { 402 continue; // background color 403 } 404 SkASSERT(0 == (index - gColorOffset) % gColorScale); 405 index = (index - gColorOffset) / gColorScale; 406 SkASSERT(static_cast<int>(index) < count); 407 bitarray |= 1 << index; 408 } 409 } 410 } 411 412 for (int i = 0; i < count; ++i) { 413 if (bitarray & (1 << i)) { 414 *array->append() = refs[i]; 415 } 416 } 417} 418 419static void gather_from_analytic(const SkPoint pos[], SkScalar w, SkScalar h, 420 const SkTDArray<SkPixelRef*> analytic[], 421 int count, 422 SkTDArray<SkPixelRef*>* result, 423 const SkRect& subset) { 424 for (int i = 0; i < count; ++i) { 425 SkRect rect = SkRect::MakeXYWH(pos[i].fX, pos[i].fY, w, h); 426 427 if (SkRect::Intersects(subset, rect)) { 428 result->append(analytic[i].count(), analytic[i].begin()); 429 } 430 } 431} 432 433 434static const struct { 435 const DrawBitmapProc proc; 436 const char* const desc; 437} gProcs[] = { 438 {drawpaint_proc, "drawpaint"}, 439 {drawpoints_proc, "drawpoints"}, 440 {drawrect_proc, "drawrect"}, 441 {drawoval_proc, "drawoval"}, 442 {drawrrect_proc, "drawrrect"}, 443 {drawpath_proc, "drawpath"}, 444 {drawbitmap_proc, "drawbitmap"}, 445 {drawbitmap_withshader_proc, "drawbitmap_withshader"}, 446 {drawsprite_proc, "drawsprite"}, 447#if 0 448 {drawsprite_withshader_proc, "drawsprite_withshader"}, 449#endif 450 {drawbitmaprect_proc, "drawbitmaprect"}, 451 {drawbitmaprect_withshader_proc, "drawbitmaprect_withshader"}, 452 {drawtext_proc, "drawtext"}, 453 {drawpostext_proc, "drawpostext"}, 454 {drawtextonpath_proc, "drawtextonpath"}, 455 {drawverts_proc, "drawverts"}, 456}; 457 458static void create_textures(SkBitmap* bm, SkPixelRef** refs, int num, int w, int h) { 459 // Our convention is that the color components contain an encoding of 460 // the index of their corresponding bitmap/pixelref. (0,0,0,0) is 461 // reserved for the background 462 for (int i = 0; i < num; ++i) { 463 make_bm(&bm[i], w, h, 464 SkColorSetARGB(0xFF, 465 gColorScale*i+gColorOffset, 466 gColorScale*i+gColorOffset, 467 gColorScale*i+gColorOffset), 468 true); 469 refs[i] = bm[i].pixelRef(); 470 } 471 472 // The A8 alternate bitmaps are all BW checkerboards 473 for (int i = 0; i < num; ++i) { 474 make_checkerboard(&bm[num+i], w, h, true); 475 refs[num+i] = bm[num+i].pixelRef(); 476 } 477} 478 479static void test_gatherpixelrefs(skiatest::Reporter* reporter) { 480 const int IW = 32; 481 const int IH = IW; 482 const SkScalar W = SkIntToScalar(IW); 483 const SkScalar H = W; 484 485 static const int N = 4; 486 SkBitmap bm[2*N]; 487 SkPixelRef* refs[2*N]; 488 SkTDArray<SkPixelRef*> analytic[N]; 489 490 const SkPoint pos[N] = { 491 { 0, 0 }, { W, 0 }, { 0, H }, { W, H } 492 }; 493 494 create_textures(bm, refs, N, IW, IH); 495 496 SkRandom rand; 497 for (size_t k = 0; k < SK_ARRAY_COUNT(gProcs); ++k) { 498 SkAutoTUnref<SkPicture> pic( 499 record_bitmaps(bm, pos, analytic, N, gProcs[k].proc)); 500 501 REPORTER_ASSERT(reporter, pic->willPlayBackBitmaps() || N == 0); 502 // quick check for a small piece of each quadrant, which should just 503 // contain 1 or 2 bitmaps. 504 for (size_t i = 0; i < SK_ARRAY_COUNT(pos); ++i) { 505 SkRect r; 506 r.set(2, 2, W - 2, H - 2); 507 r.offset(pos[i].fX, pos[i].fY); 508 SkAutoDataUnref data(SkPictureUtils::GatherPixelRefs(pic, r)); 509 if (!data) { 510 ERRORF(reporter, "SkPictureUtils::GatherPixelRefs returned " 511 "NULL for %s.", gProcs[k].desc); 512 continue; 513 } 514 SkPixelRef** gatheredRefs = (SkPixelRef**)data->data(); 515 int count = static_cast<int>(data->size() / sizeof(SkPixelRef*)); 516 REPORTER_ASSERT(reporter, 1 == count || 2 == count); 517 if (1 == count) { 518 REPORTER_ASSERT(reporter, gatheredRefs[0] == refs[i]); 519 } else if (2 == count) { 520 REPORTER_ASSERT(reporter, 521 (gatheredRefs[0] == refs[i] && gatheredRefs[1] == refs[i+N]) || 522 (gatheredRefs[1] == refs[i] && gatheredRefs[0] == refs[i+N])); 523 } 524 } 525 526 SkBitmap image; 527 draw(pic, 2*IW, 2*IH, &image); 528 529 // Test a bunch of random (mostly) rects, and compare the gather results 530 // with a deduced list of refs by looking at the colors drawn. 531 for (int j = 0; j < 100; ++j) { 532 SkRect r; 533 rand_rect(&r, rand, 2*W, 2*H); 534 535 SkTDArray<SkPixelRef*> fromImage; 536 gather_from_image(image, refs, N, &fromImage, r); 537 538 SkTDArray<SkPixelRef*> fromAnalytic; 539 gather_from_analytic(pos, W, H, analytic, N, &fromAnalytic, r); 540 541 SkData* data = SkPictureUtils::GatherPixelRefs(pic, r); 542 size_t dataSize = data ? data->size() : 0; 543 int gatherCount = static_cast<int>(dataSize / sizeof(SkPixelRef*)); 544 SkASSERT(gatherCount * sizeof(SkPixelRef*) == dataSize); 545 SkPixelRef** gatherRefs = data ? (SkPixelRef**)(data->data()) : NULL; 546 SkAutoDataUnref adu(data); 547 548 // Everything that we saw drawn should appear in the analytic list 549 // but the analytic list may contain some pixelRefs that were not 550 // seen in the image (e.g., A8 textures used as masks) 551 for (int i = 0; i < fromImage.count(); ++i) { 552 if (-1 == fromAnalytic.find(fromImage[i])) { 553 ERRORF(reporter, "PixelRef missing %d %s", 554 i, gProcs[k].desc); 555 } 556 } 557 558 /* 559 * GatherPixelRefs is conservative, so it can return more bitmaps 560 * than are strictly required. Thus our check here is only that 561 * Gather didn't miss any that we actually needed. Even that isn't 562 * a strict requirement on Gather, which is meant to be quick and 563 * only mostly-correct, but at the moment this test should work. 564 */ 565 for (int i = 0; i < fromAnalytic.count(); ++i) { 566 bool found = find(gatherRefs, fromAnalytic[i], gatherCount); 567 if (!found) { 568 ERRORF(reporter, "PixelRef missing %d %s", 569 i, gProcs[k].desc); 570 } 571#if 0 572 // enable this block of code to debug failures, as it will rerun 573 // the case that failed. 574 if (!found) { 575 SkData* data = SkPictureUtils::GatherPixelRefs(pic, r); 576 size_t dataSize = data ? data->size() : 0; 577 } 578#endif 579 } 580 } 581 } 582} 583 584static void test_gatherpixelrefsandrects(skiatest::Reporter* reporter) { 585 const int IW = 32; 586 const int IH = IW; 587 const SkScalar W = SkIntToScalar(IW); 588 const SkScalar H = W; 589 590 static const int N = 4; 591 SkBitmap bm[2*N]; 592 SkPixelRef* refs[2*N]; 593 SkTDArray<SkPixelRef*> analytic[N]; 594 595 const SkPoint pos[N] = { 596 { 0, 0 }, { W, 0 }, { 0, H }, { W, H } 597 }; 598 599 create_textures(bm, refs, N, IW, IH); 600 601 SkRandom rand; 602 for (size_t k = 0; k < SK_ARRAY_COUNT(gProcs); ++k) { 603 SkAutoTUnref<SkPicture> pic( 604 record_bitmaps(bm, pos, analytic, N, gProcs[k].proc)); 605 606 REPORTER_ASSERT(reporter, pic->willPlayBackBitmaps() || N == 0); 607 608 SkAutoTUnref<SkPictureUtils::SkPixelRefContainer> prCont( 609 new SkPictureUtils::SkPixelRefsAndRectsList); 610 611 SkPictureUtils::GatherPixelRefsAndRects(pic, prCont); 612 613 // quick check for a small piece of each quadrant, which should just 614 // contain 1 or 2 bitmaps. 615 for (size_t i = 0; i < SK_ARRAY_COUNT(pos); ++i) { 616 SkRect r; 617 r.set(2, 2, W - 2, H - 2); 618 r.offset(pos[i].fX, pos[i].fY); 619 620 SkTDArray<SkPixelRef*> gatheredRefs; 621 prCont->query(r, &gatheredRefs); 622 623 int count = gatheredRefs.count(); 624 REPORTER_ASSERT(reporter, 1 == count || 2 == count); 625 if (1 == count) { 626 REPORTER_ASSERT(reporter, gatheredRefs[0] == refs[i]); 627 } else if (2 == count) { 628 REPORTER_ASSERT(reporter, 629 (gatheredRefs[0] == refs[i] && gatheredRefs[1] == refs[i+N]) || 630 (gatheredRefs[1] == refs[i] && gatheredRefs[0] == refs[i+N])); 631 } 632 } 633 634 SkBitmap image; 635 draw(pic, 2*IW, 2*IH, &image); 636 637 // Test a bunch of random (mostly) rects, and compare the gather results 638 // with the analytic results and the pixel refs seen in a rendering. 639 for (int j = 0; j < 100; ++j) { 640 SkRect r; 641 rand_rect(&r, rand, 2*W, 2*H); 642 643 SkTDArray<SkPixelRef*> fromImage; 644 gather_from_image(image, refs, N, &fromImage, r); 645 646 SkTDArray<SkPixelRef*> fromAnalytic; 647 gather_from_analytic(pos, W, H, analytic, N, &fromAnalytic, r); 648 649 SkTDArray<SkPixelRef*> gatheredRefs; 650 prCont->query(r, &gatheredRefs); 651 652 // Everything that we saw drawn should appear in the analytic list 653 // but the analytic list may contain some pixelRefs that were not 654 // seen in the image (e.g., A8 textures used as masks) 655 for (int i = 0; i < fromImage.count(); ++i) { 656 REPORTER_ASSERT(reporter, -1 != fromAnalytic.find(fromImage[i])); 657 } 658 659 // Everything in the analytic list should appear in the gathered 660 // list. 661 for (int i = 0; i < fromAnalytic.count(); ++i) { 662 REPORTER_ASSERT(reporter, -1 != gatheredRefs.find(fromAnalytic[i])); 663 } 664 } 665 } 666} 667 668#ifdef SK_DEBUG 669// Ensure that deleting SkPicturePlayback does not assert. Asserts only fire in debug mode, so only 670// run in debug mode. 671static void test_deleting_empty_playback() { 672 SkPictureRecorder recorder; 673 // Creates an SkPictureRecord 674 recorder.beginRecording(0, 0, NULL, 0); 675 // Turns that into an SkPicturePlayback 676 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 677 // Deletes the old SkPicturePlayback, and creates a new SkPictureRecord 678 recorder.beginRecording(0, 0, NULL, 0); 679} 680 681// Ensure that serializing an empty picture does not assert. Likewise only runs in debug mode. 682static void test_serializing_empty_picture() { 683 SkPictureRecorder recorder; 684 recorder.beginRecording(0, 0, NULL, 0); 685 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 686 SkDynamicMemoryWStream stream; 687 picture->serialize(&stream); 688} 689#endif 690 691static void rand_op(SkCanvas* canvas, SkRandom& rand) { 692 SkPaint paint; 693 SkRect rect = SkRect::MakeWH(50, 50); 694 695 SkScalar unit = rand.nextUScalar1(); 696 if (unit <= 0.3) { 697// SkDebugf("save\n"); 698 canvas->save(); 699 } else if (unit <= 0.6) { 700// SkDebugf("restore\n"); 701 canvas->restore(); 702 } else if (unit <= 0.9) { 703// SkDebugf("clip\n"); 704 canvas->clipRect(rect); 705 } else { 706// SkDebugf("draw\n"); 707 canvas->drawPaint(paint); 708 } 709} 710 711#if SK_SUPPORT_GPU 712static void test_gpu_veto(skiatest::Reporter* reporter) { 713 714 SkPictureRecorder recorder; 715 716 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 717 { 718 SkPath path; 719 path.moveTo(0, 0); 720 path.lineTo(50, 50); 721 722 SkScalar intervals[] = { 1.0f, 1.0f }; 723 SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, 2, 0)); 724 725 SkPaint paint; 726 paint.setStyle(SkPaint::kStroke_Style); 727 paint.setPathEffect(dash); 728 729 canvas->drawPath(path, paint); 730 } 731 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 732 // path effects currently render an SkPicture undesireable for GPU rendering 733 REPORTER_ASSERT(reporter, !picture->suitableForGpuRasterization(NULL)); 734 735 canvas = recorder.beginRecording(100, 100, NULL, 0); 736 { 737 SkPath path; 738 739 path.moveTo(0, 0); 740 path.lineTo(0, 50); 741 path.lineTo(25, 25); 742 path.lineTo(50, 50); 743 path.lineTo(50, 0); 744 path.close(); 745 REPORTER_ASSERT(reporter, !path.isConvex()); 746 747 SkPaint paint; 748 paint.setAntiAlias(true); 749 for (int i = 0; i < 50; ++i) { 750 canvas->drawPath(path, paint); 751 } 752 } 753 picture.reset(recorder.endRecording()); 754 // A lot of AA concave paths currently render an SkPicture undesireable for GPU rendering 755 REPORTER_ASSERT(reporter, !picture->suitableForGpuRasterization(NULL)); 756 757 canvas = recorder.beginRecording(100, 100, NULL, 0); 758 { 759 SkPath path; 760 761 path.moveTo(0, 0); 762 path.lineTo(0, 50); 763 path.lineTo(25, 25); 764 path.lineTo(50, 50); 765 path.lineTo(50, 0); 766 path.close(); 767 REPORTER_ASSERT(reporter, !path.isConvex()); 768 769 SkPaint paint; 770 paint.setAntiAlias(true); 771 paint.setStyle(SkPaint::kStroke_Style); 772 paint.setStrokeWidth(0); 773 for (int i = 0; i < 50; ++i) { 774 canvas->drawPath(path, paint); 775 } 776 } 777 picture.reset(recorder.endRecording()); 778 // hairline stroked AA concave paths are fine for GPU rendering 779 REPORTER_ASSERT(reporter, picture->suitableForGpuRasterization(NULL)); 780} 781 782static void test_gpu_picture_optimization(skiatest::Reporter* reporter, 783 GrContextFactory* factory) { 784 785 GrContext* context = factory->get(GrContextFactory::kNative_GLContextType); 786 787 static const int kWidth = 100; 788 static const int kHeight = 100; 789 790 SkAutoTUnref<SkPicture> pict; 791 792 // create a picture with the structure: 793 // 1) 794 // SaveLayer 795 // Restore 796 // 2) 797 // SaveLayer 798 // Translate 799 // SaveLayer w/ bound 800 // Restore 801 // Restore 802 // 3) 803 // SaveLayer w/ copyable paint 804 // Restore 805 // 4) 806 // SaveLayer w/ non-copyable paint 807 // Restore 808 { 809 SkPictureRecorder recorder; 810 811 SkCanvas* c = recorder.beginRecording(kWidth, kHeight, NULL, 0); 812 // 1) 813 c->saveLayer(NULL, NULL); 814 c->restore(); 815 816 // 2) 817 c->saveLayer(NULL, NULL); 818 c->translate(kWidth/2, kHeight/2); 819 SkRect r = SkRect::MakeXYWH(0, 0, kWidth/2, kHeight/2); 820 c->saveLayer(&r, NULL); 821 c->restore(); 822 c->restore(); 823 824 // 3) 825 { 826 SkPaint p; 827 p.setColor(SK_ColorRED); 828 c->saveLayer(NULL, &p); 829 c->restore(); 830 } 831 // 4) 832 // TODO: this case will need to be removed once the paint's are immutable 833 { 834 SkPaint p; 835 SkAutoTUnref<SkColorFilter> cf(SkLumaColorFilter::Create()); 836 p.setImageFilter(SkColorFilterImageFilter::Create(cf.get()))->unref(); 837 c->saveLayer(NULL, &p); 838 c->restore(); 839 } 840 841 pict.reset(recorder.endRecording()); 842 } 843 844 // Now test out the SaveLayer extraction 845 { 846 SkImageInfo info = SkImageInfo::MakeN32Premul(kWidth, kHeight); 847 848 SkAutoTUnref<SkSurface> surface(SkSurface::NewScratchRenderTarget(context, info)); 849 850 SkCanvas* canvas = surface->getCanvas(); 851 852 canvas->EXPERIMENTAL_optimize(pict); 853 854 SkPicture::AccelData::Key key = GPUAccelData::ComputeAccelDataKey(); 855 856 const SkPicture::AccelData* data = pict->EXPERIMENTAL_getAccelData(key); 857 REPORTER_ASSERT(reporter, NULL != data); 858 859 const GPUAccelData *gpuData = static_cast<const GPUAccelData*>(data); 860 REPORTER_ASSERT(reporter, 5 == gpuData->numSaveLayers()); 861 862 const GPUAccelData::SaveLayerInfo& info0 = gpuData->saveLayerInfo(0); 863 // The parent/child layer appear in reverse order 864 const GPUAccelData::SaveLayerInfo& info1 = gpuData->saveLayerInfo(2); 865 const GPUAccelData::SaveLayerInfo& info2 = gpuData->saveLayerInfo(1); 866 const GPUAccelData::SaveLayerInfo& info3 = gpuData->saveLayerInfo(3); 867// const GPUAccelData::SaveLayerInfo& info4 = gpuData->saveLayerInfo(4); 868 869 REPORTER_ASSERT(reporter, info0.fValid); 870 REPORTER_ASSERT(reporter, kWidth == info0.fSize.fWidth && kHeight == info0.fSize.fHeight); 871 REPORTER_ASSERT(reporter, info0.fCTM.isIdentity()); 872 REPORTER_ASSERT(reporter, 0 == info0.fOffset.fX && 0 == info0.fOffset.fY); 873 REPORTER_ASSERT(reporter, NULL != info0.fPaint); 874 REPORTER_ASSERT(reporter, !info0.fIsNested && !info0.fHasNestedLayers); 875 876 REPORTER_ASSERT(reporter, info1.fValid); 877 REPORTER_ASSERT(reporter, kWidth == info1.fSize.fWidth && kHeight == info1.fSize.fHeight); 878 REPORTER_ASSERT(reporter, info1.fCTM.isIdentity()); 879 REPORTER_ASSERT(reporter, 0 == info1.fOffset.fX && 0 == info1.fOffset.fY); 880 REPORTER_ASSERT(reporter, NULL != info1.fPaint); 881 REPORTER_ASSERT(reporter, !info1.fIsNested && info1.fHasNestedLayers); // has a nested SL 882 883 REPORTER_ASSERT(reporter, info2.fValid); 884 REPORTER_ASSERT(reporter, kWidth/2 == info2.fSize.fWidth && 885 kHeight/2 == info2.fSize.fHeight); // bound reduces size 886 REPORTER_ASSERT(reporter, info2.fCTM.isIdentity()); // translated 887 REPORTER_ASSERT(reporter, kWidth/2 == info2.fOffset.fX && 888 kHeight/2 == info2.fOffset.fY); 889 REPORTER_ASSERT(reporter, NULL != info1.fPaint); 890 REPORTER_ASSERT(reporter, info2.fIsNested && !info2.fHasNestedLayers); // is nested 891 892 REPORTER_ASSERT(reporter, info3.fValid); 893 REPORTER_ASSERT(reporter, kWidth == info3.fSize.fWidth && kHeight == info3.fSize.fHeight); 894 REPORTER_ASSERT(reporter, info3.fCTM.isIdentity()); 895 REPORTER_ASSERT(reporter, 0 == info3.fOffset.fX && 0 == info3.fOffset.fY); 896 REPORTER_ASSERT(reporter, NULL != info3.fPaint); 897 REPORTER_ASSERT(reporter, !info3.fIsNested && !info3.fHasNestedLayers); 898 899#if 0 // needs more though for GrGatherCanvas 900 REPORTER_ASSERT(reporter, !info4.fValid); // paint is/was uncopyable 901 REPORTER_ASSERT(reporter, kWidth == info4.fSize.fWidth && kHeight == info4.fSize.fHeight); 902 REPORTER_ASSERT(reporter, 0 == info4.fOffset.fX && 0 == info4.fOffset.fY); 903 REPORTER_ASSERT(reporter, info4.fCTM.isIdentity()); 904 REPORTER_ASSERT(reporter, NULL == info4.fPaint); // paint is/was uncopyable 905 REPORTER_ASSERT(reporter, !info4.fIsNested && !info4.fHasNestedLayers); 906#endif 907 } 908} 909 910#endif 911 912static void set_canvas_to_save_count_4(SkCanvas* canvas) { 913 canvas->restoreToCount(1); 914 canvas->save(); 915 canvas->save(); 916 canvas->save(); 917} 918 919#ifdef SK_BUILD_FOR_ANDROID 920/** 921 * A canvas that records the number of saves, saveLayers and restores. 922 */ 923class SaveCountingCanvas : public SkCanvas { 924public: 925 SaveCountingCanvas(int width, int height) 926 : INHERITED(width, height) 927 , fSaveCount(0) 928 , fSaveLayerCount(0) 929 , fRestoreCount(0){ 930 } 931 932 virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint* paint, 933 SaveFlags flags) SK_OVERRIDE { 934 ++fSaveLayerCount; 935 return this->INHERITED::willSaveLayer(bounds, paint, flags); 936 } 937 938 virtual void willSave(SaveFlags flags) SK_OVERRIDE { 939 ++fSaveCount; 940 this->INHERITED::willSave(flags); 941 } 942 943 virtual void willRestore() SK_OVERRIDE { 944 ++fRestoreCount; 945 this->INHERITED::willRestore(); 946 } 947 948 unsigned int getSaveCount() const { return fSaveCount; } 949 unsigned int getSaveLayerCount() const { return fSaveLayerCount; } 950 unsigned int getRestoreCount() const { return fRestoreCount; } 951 952private: 953 unsigned int fSaveCount; 954 unsigned int fSaveLayerCount; 955 unsigned int fRestoreCount; 956 957 typedef SkCanvas INHERITED; 958}; 959 960void check_save_state(skiatest::Reporter* reporter, SkPicture* picture, 961 unsigned int numSaves, unsigned int numSaveLayers, 962 unsigned int numRestores) { 963 SaveCountingCanvas canvas(picture->width(), picture->height()); 964 965 picture->draw(&canvas); 966 967 REPORTER_ASSERT(reporter, numSaves == canvas.getSaveCount()); 968 REPORTER_ASSERT(reporter, numSaveLayers == canvas.getSaveLayerCount()); 969 REPORTER_ASSERT(reporter, numRestores == canvas.getRestoreCount()); 970} 971 972// This class exists so SkPicture can friend it and give it access to 973// the 'partialReplay' method. 974class SkPictureRecorderReplayTester { 975public: 976 static SkPicture* Copy(SkPictureRecorder* recorder) { 977 SkPictureRecorder recorder2; 978 979 SkCanvas* canvas = recorder2.beginRecording(10, 10, NULL, 0); 980 981 recorder->partialReplay(canvas); 982 983 return recorder2.endRecording(); 984 } 985}; 986 987// Test out SkPictureRecorder::partialReplay 988DEF_TEST(PictureRecorder_replay, reporter) { 989 // check save/saveLayer state 990 { 991 SkPictureRecorder recorder; 992 993 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 994 995 canvas->saveLayer(NULL, NULL); 996 997 SkAutoTUnref<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder)); 998 999 // The extra save and restore comes from the Copy process. 1000 check_save_state(reporter, copy, 2, 1, 3); 1001 1002 canvas->saveLayer(NULL, NULL); 1003 1004 SkAutoTUnref<SkPicture> final(recorder.endRecording()); 1005 1006 check_save_state(reporter, final, 1, 2, 3); 1007 1008 // The copy shouldn't pick up any operations added after it was made 1009 check_save_state(reporter, copy, 2, 1, 3); 1010 } 1011 1012 // (partially) check leakage of draw ops 1013 { 1014 SkPictureRecorder recorder; 1015 1016 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1017 1018 SkRect r = SkRect::MakeWH(5, 5); 1019 SkPaint p; 1020 1021 canvas->drawRect(r, p); 1022 1023 SkAutoTUnref<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder)); 1024 1025 REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps()); 1026 1027 SkBitmap bm; 1028 make_bm(&bm, 10, 10, SK_ColorRED, true); 1029 1030 r.offset(5.0f, 5.0f); 1031 canvas->drawBitmapRectToRect(bm, NULL, r); 1032 1033 SkAutoTUnref<SkPicture> final(recorder.endRecording()); 1034 REPORTER_ASSERT(reporter, final->willPlayBackBitmaps()); 1035 1036 REPORTER_ASSERT(reporter, copy->uniqueID() != final->uniqueID()); 1037 1038 // The snapshot shouldn't pick up any operations added after it was made 1039 REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps()); 1040 } 1041} 1042#endif 1043 1044static void test_unbalanced_save_restores(skiatest::Reporter* reporter) { 1045 SkCanvas testCanvas(100, 100); 1046 set_canvas_to_save_count_4(&testCanvas); 1047 1048 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1049 1050 SkPaint paint; 1051 SkRect rect = SkRect::MakeLTRB(-10000000, -10000000, 10000000, 10000000); 1052 1053 SkPictureRecorder recorder; 1054 1055 { 1056 // Create picture with 2 unbalanced saves 1057 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 1058 canvas->save(); 1059 canvas->translate(10, 10); 1060 canvas->drawRect(rect, paint); 1061 canvas->save(); 1062 canvas->translate(10, 10); 1063 canvas->drawRect(rect, paint); 1064 SkAutoTUnref<SkPicture> extraSavePicture(recorder.endRecording()); 1065 1066 testCanvas.drawPicture(*extraSavePicture); 1067 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1068 } 1069 1070 set_canvas_to_save_count_4(&testCanvas); 1071 1072 { 1073 // Create picture with 2 unbalanced restores 1074 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 1075 canvas->save(); 1076 canvas->translate(10, 10); 1077 canvas->drawRect(rect, paint); 1078 canvas->save(); 1079 canvas->translate(10, 10); 1080 canvas->drawRect(rect, paint); 1081 canvas->restore(); 1082 canvas->restore(); 1083 canvas->restore(); 1084 canvas->restore(); 1085 SkAutoTUnref<SkPicture> extraRestorePicture(recorder.endRecording()); 1086 1087 testCanvas.drawPicture(*extraRestorePicture); 1088 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1089 } 1090 1091 set_canvas_to_save_count_4(&testCanvas); 1092 1093 { 1094 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 1095 canvas->translate(10, 10); 1096 canvas->drawRect(rect, paint); 1097 SkAutoTUnref<SkPicture> noSavePicture(recorder.endRecording()); 1098 1099 testCanvas.drawPicture(*noSavePicture); 1100 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1101 REPORTER_ASSERT(reporter, testCanvas.getTotalMatrix().isIdentity()); 1102 } 1103 1104#if defined(SK_SUPPORT_LEGACY_PICTURE_CAN_RECORD) && \ 1105 defined(SK_SUPPORT_LEGACY_DERIVED_PICTURE_CLASSES) 1106 set_canvas_to_save_count_4(&testCanvas); 1107 1108 // Due to "fake" endRecording, the old SkPicture recording interface 1109 // allowed unbalanced saves/restores to leak out. This sub-test checks 1110 // that the situation has been remedied. 1111 { 1112 SkPicture p; 1113 1114 SkCanvas* canvas = p.beginRecording(100, 100); 1115 for (int i = 0; i < 4; ++i) { 1116 canvas->save(); 1117 } 1118 SkRect r = SkRect::MakeWH(50, 50); 1119 SkPaint paint; 1120 canvas->drawRect(r, paint); 1121 1122 // Check that copying a mid-recording picture does not result in unbalanced saves/restores 1123 SkPicture p2(p); 1124 1125 testCanvas.drawPicture(p2); 1126 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1127 set_canvas_to_save_count_4(&testCanvas); 1128 1129 // Check that cloning a mid-recording picture does not result in unbalanced saves/restores 1130 SkAutoTUnref<SkPicture> p3(p.clone()); 1131 testCanvas.drawPicture(*p3); 1132 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1133 set_canvas_to_save_count_4(&testCanvas); 1134 1135 // Check that serializing a mid-recording picture doesn't result in unbalanced 1136 // saves/restores 1137 SkDynamicMemoryWStream wStream; 1138 p.serialize(&wStream); 1139 SkAutoDataUnref data(wStream.copyToData()); 1140 SkMemoryStream stream(data); 1141 SkAutoTUnref<SkPicture> p4(SkPicture::CreateFromStream(&stream, NULL)); 1142 testCanvas.drawPicture(*p4); 1143 REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); 1144 } 1145#endif 1146} 1147 1148static void test_peephole() { 1149 SkRandom rand; 1150 1151 SkPictureRecorder recorder; 1152 1153 for (int j = 0; j < 100; j++) { 1154 SkRandom rand2(rand); // remember the seed 1155 1156 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 1157 1158 for (int i = 0; i < 1000; ++i) { 1159 rand_op(canvas, rand); 1160 } 1161 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1162 1163 rand = rand2; 1164 } 1165 1166 { 1167 SkCanvas* canvas = recorder.beginRecording(100, 100, NULL, 0); 1168 SkRect rect = SkRect::MakeWH(50, 50); 1169 1170 for (int i = 0; i < 100; ++i) { 1171 canvas->save(); 1172 } 1173 while (canvas->getSaveCount() > 1) { 1174 canvas->clipRect(rect); 1175 canvas->restore(); 1176 } 1177 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1178 } 1179} 1180 1181#ifndef SK_DEBUG 1182// Only test this is in release mode. We deliberately crash in debug mode, since a valid caller 1183// should never do this. 1184static void test_bad_bitmap() { 1185 // This bitmap has a width and height but no pixels. As a result, attempting to record it will 1186 // fail. 1187 SkBitmap bm; 1188 bm.setInfo(SkImageInfo::MakeN32Premul(100, 100)); 1189 SkPictureRecorder recorder; 1190 SkCanvas* recordingCanvas = recorder.beginRecording(100, 100, NULL, 0); 1191 recordingCanvas->drawBitmap(bm, 0, 0); 1192 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1193 1194 SkCanvas canvas; 1195 canvas.drawPicture(*picture); 1196} 1197#endif 1198 1199static SkData* encode_bitmap_to_data(size_t*, const SkBitmap& bm) { 1200 return SkImageEncoder::EncodeData(bm, SkImageEncoder::kPNG_Type, 100); 1201} 1202 1203static SkData* serialized_picture_from_bitmap(const SkBitmap& bitmap) { 1204 SkPictureRecorder recorder; 1205 SkCanvas* canvas = recorder.beginRecording(bitmap.width(), bitmap.height(), NULL, 0); 1206 canvas->drawBitmap(bitmap, 0, 0); 1207 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1208 1209 SkDynamicMemoryWStream wStream; 1210 picture->serialize(&wStream, &encode_bitmap_to_data); 1211 return wStream.copyToData(); 1212} 1213 1214struct ErrorContext { 1215 int fErrors; 1216 skiatest::Reporter* fReporter; 1217}; 1218 1219static void assert_one_parse_error_cb(SkError error, void* context) { 1220 ErrorContext* errorContext = static_cast<ErrorContext*>(context); 1221 errorContext->fErrors++; 1222 // This test only expects one error, and that is a kParseError. If there are others, 1223 // there is some unknown problem. 1224 REPORTER_ASSERT_MESSAGE(errorContext->fReporter, 1 == errorContext->fErrors, 1225 "This threw more errors than expected."); 1226 REPORTER_ASSERT_MESSAGE(errorContext->fReporter, kParseError_SkError == error, 1227 SkGetLastErrorString()); 1228} 1229 1230static void test_bitmap_with_encoded_data(skiatest::Reporter* reporter) { 1231 // Create a bitmap that will be encoded. 1232 SkBitmap original; 1233 make_bm(&original, 100, 100, SK_ColorBLUE, true); 1234 SkDynamicMemoryWStream wStream; 1235 if (!SkImageEncoder::EncodeStream(&wStream, original, SkImageEncoder::kPNG_Type, 100)) { 1236 return; 1237 } 1238 SkAutoDataUnref data(wStream.copyToData()); 1239 1240 SkBitmap bm; 1241 bool installSuccess = SkInstallDiscardablePixelRef( 1242 SkDecodingImageGenerator::Create(data, SkDecodingImageGenerator::Options()), &bm); 1243 REPORTER_ASSERT(reporter, installSuccess); 1244 1245 // Write both bitmaps to pictures, and ensure that the resulting data streams are the same. 1246 // Flattening original will follow the old path of performing an encode, while flattening bm 1247 // will use the already encoded data. 1248 SkAutoDataUnref picture1(serialized_picture_from_bitmap(original)); 1249 SkAutoDataUnref picture2(serialized_picture_from_bitmap(bm)); 1250 REPORTER_ASSERT(reporter, picture1->equals(picture2)); 1251 // Now test that a parse error was generated when trying to create a new SkPicture without 1252 // providing a function to decode the bitmap. 1253 ErrorContext context; 1254 context.fErrors = 0; 1255 context.fReporter = reporter; 1256 SkSetErrorCallback(assert_one_parse_error_cb, &context); 1257 SkMemoryStream pictureStream(picture1); 1258 SkClearLastError(); 1259 SkAutoUnref pictureFromStream(SkPicture::CreateFromStream(&pictureStream, NULL)); 1260 REPORTER_ASSERT(reporter, pictureFromStream.get() != NULL); 1261 SkClearLastError(); 1262 SkSetErrorCallback(NULL, NULL); 1263} 1264 1265static void test_clone_empty(skiatest::Reporter* reporter) { 1266 // This is a regression test for crbug.com/172062 1267 // Before the fix, we used to crash accessing a null pointer when we 1268 // had a picture with no paints. This test passes by not crashing. 1269 { 1270 SkPictureRecorder recorder; 1271 recorder.beginRecording(1, 1, NULL, 0); 1272 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1273 SkAutoTUnref<SkPicture> destPicture(picture->clone()); 1274 REPORTER_ASSERT(reporter, NULL != destPicture); 1275 } 1276} 1277 1278static void test_draw_empty(skiatest::Reporter* reporter) { 1279 SkBitmap result; 1280 make_bm(&result, 2, 2, SK_ColorBLACK, false); 1281 1282 SkCanvas canvas(result); 1283 1284 { 1285 // stock SkPicture 1286 SkPictureRecorder recorder; 1287 recorder.beginRecording(1, 1, NULL, 0); 1288 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1289 1290 canvas.drawPicture(*picture); 1291 } 1292 1293 { 1294 // tile grid 1295 SkTileGridFactory::TileGridInfo gridInfo; 1296 gridInfo.fMargin.setEmpty(); 1297 gridInfo.fOffset.setZero(); 1298 gridInfo.fTileInterval.set(1, 1); 1299 1300 SkTileGridFactory factory(gridInfo); 1301 SkPictureRecorder recorder; 1302 recorder.beginRecording(1, 1, &factory, 0); 1303 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1304 1305 canvas.drawPicture(*picture); 1306 } 1307 1308 { 1309 // RTree 1310 SkRTreeFactory factory; 1311 SkPictureRecorder recorder; 1312 recorder.beginRecording(1, 1, &factory, 0); 1313 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1314 1315 canvas.drawPicture(*picture); 1316 } 1317 1318 { 1319 // quad tree 1320 SkQuadTreeFactory factory; 1321 SkPictureRecorder recorder; 1322 recorder.beginRecording(1, 1, &factory, 0); 1323 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1324 1325 canvas.drawPicture(*picture); 1326 } 1327} 1328 1329static void test_clip_bound_opt(skiatest::Reporter* reporter) { 1330 // Test for crbug.com/229011 1331 SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4), 1332 SkIntToScalar(2), SkIntToScalar(2)); 1333 SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7), 1334 SkIntToScalar(1), SkIntToScalar(1)); 1335 SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6), 1336 SkIntToScalar(1), SkIntToScalar(1)); 1337 1338 SkPath invPath; 1339 invPath.addOval(rect1); 1340 invPath.setFillType(SkPath::kInverseEvenOdd_FillType); 1341 SkPath path; 1342 path.addOval(rect2); 1343 SkPath path2; 1344 path2.addOval(rect3); 1345 SkIRect clipBounds; 1346 SkPictureRecorder recorder; 1347 // Minimalist test set for 100% code coverage of 1348 // SkPictureRecord::updateClipConservativelyUsingBounds 1349 { 1350 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1351 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1352 canvas->clipPath(invPath, SkRegion::kIntersect_Op); 1353 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1354 REPORTER_ASSERT(reporter, true == nonEmpty); 1355 REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); 1356 REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); 1357 REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); 1358 REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); 1359 } 1360 { 1361 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1362 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1363 canvas->clipPath(path, SkRegion::kIntersect_Op); 1364 canvas->clipPath(invPath, SkRegion::kIntersect_Op); 1365 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1366 REPORTER_ASSERT(reporter, true == nonEmpty); 1367 REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft); 1368 REPORTER_ASSERT(reporter, 7 == clipBounds.fTop); 1369 REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); 1370 REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); 1371 } 1372 { 1373 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1374 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1375 canvas->clipPath(path, SkRegion::kIntersect_Op); 1376 canvas->clipPath(invPath, SkRegion::kUnion_Op); 1377 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1378 REPORTER_ASSERT(reporter, true == nonEmpty); 1379 REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); 1380 REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); 1381 REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); 1382 REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); 1383 } 1384 { 1385 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1386 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1387 canvas->clipPath(path, SkRegion::kDifference_Op); 1388 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1389 REPORTER_ASSERT(reporter, true == nonEmpty); 1390 REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); 1391 REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); 1392 REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); 1393 REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); 1394 } 1395 { 1396 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1397 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1398 canvas->clipPath(path, SkRegion::kReverseDifference_Op); 1399 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1400 // True clip is actually empty in this case, but the best 1401 // determination we can make using only bounds as input is that the 1402 // clip is included in the bounds of 'path'. 1403 REPORTER_ASSERT(reporter, true == nonEmpty); 1404 REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft); 1405 REPORTER_ASSERT(reporter, 7 == clipBounds.fTop); 1406 REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); 1407 REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); 1408 } 1409 { 1410 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 1411 SkPicture::kUsePathBoundsForClip_RecordingFlag); 1412 canvas->clipPath(path, SkRegion::kIntersect_Op); 1413 canvas->clipPath(path2, SkRegion::kXOR_Op); 1414 bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); 1415 REPORTER_ASSERT(reporter, true == nonEmpty); 1416 REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft); 1417 REPORTER_ASSERT(reporter, 6 == clipBounds.fTop); 1418 REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); 1419 REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); 1420 } 1421} 1422 1423/** 1424 * A canvas that records the number of clip commands. 1425 */ 1426class ClipCountingCanvas : public SkCanvas { 1427public: 1428 ClipCountingCanvas(int width, int height) 1429 : INHERITED(width, height) 1430 , fClipCount(0){ 1431 } 1432 1433 virtual void onClipRect(const SkRect& r, 1434 SkRegion::Op op, 1435 ClipEdgeStyle edgeStyle) SK_OVERRIDE { 1436 fClipCount += 1; 1437 this->INHERITED::onClipRect(r, op, edgeStyle); 1438 } 1439 1440 virtual void onClipRRect(const SkRRect& rrect, 1441 SkRegion::Op op, 1442 ClipEdgeStyle edgeStyle)SK_OVERRIDE { 1443 fClipCount += 1; 1444 this->INHERITED::onClipRRect(rrect, op, edgeStyle); 1445 } 1446 1447 virtual void onClipPath(const SkPath& path, 1448 SkRegion::Op op, 1449 ClipEdgeStyle edgeStyle) SK_OVERRIDE { 1450 fClipCount += 1; 1451 this->INHERITED::onClipPath(path, op, edgeStyle); 1452 } 1453 1454 virtual void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) SK_OVERRIDE { 1455 fClipCount += 1; 1456 this->INHERITED::onClipRegion(deviceRgn, op); 1457 } 1458 1459 unsigned getClipCount() const { return fClipCount; } 1460 1461private: 1462 unsigned fClipCount; 1463 1464 typedef SkCanvas INHERITED; 1465}; 1466 1467static void test_clip_expansion(skiatest::Reporter* reporter) { 1468 SkPictureRecorder recorder; 1469 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1470 1471 canvas->clipRect(SkRect::MakeEmpty(), SkRegion::kReplace_Op); 1472 // The following expanding clip should not be skipped. 1473 canvas->clipRect(SkRect::MakeXYWH(4, 4, 3, 3), SkRegion::kUnion_Op); 1474 // Draw something so the optimizer doesn't just fold the world. 1475 SkPaint p; 1476 p.setColor(SK_ColorBLUE); 1477 canvas->drawPaint(p); 1478 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1479 1480 ClipCountingCanvas testCanvas(10, 10); 1481 picture->draw(&testCanvas); 1482 1483 // Both clips should be present on playback. 1484 REPORTER_ASSERT(reporter, testCanvas.getClipCount() == 2); 1485} 1486 1487static void test_hierarchical(skiatest::Reporter* reporter) { 1488 SkBitmap bm; 1489 make_bm(&bm, 10, 10, SK_ColorRED, true); 1490 1491 SkPictureRecorder recorder; 1492 1493 recorder.beginRecording(10, 10, NULL, 0); 1494 SkAutoTUnref<SkPicture> childPlain(recorder.endRecording()); 1495 REPORTER_ASSERT(reporter, !childPlain->willPlayBackBitmaps()); // 0 1496 1497 recorder.beginRecording(10, 10, NULL, 0)->drawBitmap(bm, 0, 0); 1498 SkAutoTUnref<SkPicture> childWithBitmap(recorder.endRecording()); 1499 REPORTER_ASSERT(reporter, childWithBitmap->willPlayBackBitmaps()); // 1 1500 1501 { 1502 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1503 canvas->drawPicture(*childPlain); 1504 SkAutoTUnref<SkPicture> parentPP(recorder.endRecording()); 1505 REPORTER_ASSERT(reporter, !parentPP->willPlayBackBitmaps()); // 0 1506 } 1507 { 1508 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1509 canvas->drawPicture(*childWithBitmap); 1510 SkAutoTUnref<SkPicture> parentPWB(recorder.endRecording()); 1511 REPORTER_ASSERT(reporter, parentPWB->willPlayBackBitmaps()); // 1 1512 } 1513 { 1514 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1515 canvas->drawBitmap(bm, 0, 0); 1516 canvas->drawPicture(*childPlain); 1517 SkAutoTUnref<SkPicture> parentWBP(recorder.endRecording()); 1518 REPORTER_ASSERT(reporter, parentWBP->willPlayBackBitmaps()); // 1 1519 } 1520 { 1521 SkCanvas* canvas = recorder.beginRecording(10, 10, NULL, 0); 1522 canvas->drawBitmap(bm, 0, 0); 1523 canvas->drawPicture(*childWithBitmap); 1524 SkAutoTUnref<SkPicture> parentWBWB(recorder.endRecording()); 1525 REPORTER_ASSERT(reporter, parentWBWB->willPlayBackBitmaps()); // 2 1526 } 1527} 1528 1529static void test_gen_id(skiatest::Reporter* reporter) { 1530 1531 SkPicture empty; 1532 1533 // Empty pictures should still have a valid ID 1534 REPORTER_ASSERT(reporter, empty.uniqueID() != SK_InvalidGenID); 1535 1536 SkPictureRecorder recorder; 1537 1538 SkCanvas* canvas = recorder.beginRecording(1, 1, NULL, 0); 1539 canvas->drawARGB(255, 255, 255, 255); 1540 SkAutoTUnref<SkPicture> hasData(recorder.endRecording()); 1541 // picture should have a non-zero id after recording 1542 REPORTER_ASSERT(reporter, hasData->uniqueID() != SK_InvalidGenID); 1543 1544 // both pictures should have different ids 1545 REPORTER_ASSERT(reporter, hasData->uniqueID() != empty.uniqueID()); 1546 1547 // test out copy constructor 1548 SkPicture copyWithData(*hasData); 1549 REPORTER_ASSERT(reporter, hasData->uniqueID() == copyWithData.uniqueID()); 1550 1551 SkPicture emptyCopy(empty); 1552 REPORTER_ASSERT(reporter, empty.uniqueID() != emptyCopy.uniqueID()); 1553 1554 // test out swap 1555 { 1556 SkPicture swapWithData; 1557 uint32_t beforeID1 = swapWithData.uniqueID(); 1558 uint32_t beforeID2 = copyWithData.uniqueID(); 1559 swapWithData.swap(copyWithData); 1560 REPORTER_ASSERT(reporter, copyWithData.uniqueID() == beforeID1); 1561 REPORTER_ASSERT(reporter, swapWithData.uniqueID() == beforeID2); 1562 } 1563 1564 // test out clone 1565 { 1566 SkAutoTUnref<SkPicture> cloneWithData(hasData->clone()); 1567 REPORTER_ASSERT(reporter, hasData->uniqueID() == cloneWithData->uniqueID()); 1568 1569 SkAutoTUnref<SkPicture> emptyClone(empty.clone()); 1570 REPORTER_ASSERT(reporter, empty.uniqueID() != emptyClone->uniqueID()); 1571 } 1572} 1573 1574DEF_TEST(Picture, reporter) { 1575#ifdef SK_DEBUG 1576 test_deleting_empty_playback(); 1577 test_serializing_empty_picture(); 1578#else 1579 test_bad_bitmap(); 1580#endif 1581 test_unbalanced_save_restores(reporter); 1582 test_peephole(); 1583#if SK_SUPPORT_GPU 1584 test_gpu_veto(reporter); 1585#endif 1586 test_gatherpixelrefs(reporter); 1587 test_gatherpixelrefsandrects(reporter); 1588 test_bitmap_with_encoded_data(reporter); 1589 test_clone_empty(reporter); 1590 test_draw_empty(reporter); 1591 test_clip_bound_opt(reporter); 1592 test_clip_expansion(reporter); 1593 test_hierarchical(reporter); 1594 test_gen_id(reporter); 1595} 1596 1597#if SK_SUPPORT_GPU 1598DEF_GPUTEST(GPUPicture, reporter, factory) { 1599 test_gpu_picture_optimization(reporter, factory); 1600} 1601#endif 1602 1603static void draw_bitmaps(const SkBitmap bitmap, SkCanvas* canvas) { 1604 const SkPaint paint; 1605 const SkRect rect = { 5.0f, 5.0f, 8.0f, 8.0f }; 1606 const SkIRect irect = { 2, 2, 3, 3 }; 1607 1608 // Don't care what these record, as long as they're legal. 1609 canvas->drawBitmap(bitmap, 0.0f, 0.0f, &paint); 1610 canvas->drawBitmapRectToRect(bitmap, &rect, rect, &paint, SkCanvas::kNone_DrawBitmapRectFlag); 1611 canvas->drawBitmapMatrix(bitmap, SkMatrix::I(), &paint); 1612 canvas->drawBitmapNine(bitmap, irect, rect, &paint); 1613 canvas->drawSprite(bitmap, 1, 1); 1614} 1615 1616static void test_draw_bitmaps(SkCanvas* canvas) { 1617 SkBitmap empty; 1618 draw_bitmaps(empty, canvas); 1619 empty.setInfo(SkImageInfo::MakeN32Premul(10, 10)); 1620 draw_bitmaps(empty, canvas); 1621} 1622 1623DEF_TEST(Picture_EmptyBitmap, r) { 1624 SkPictureRecorder recorder; 1625 test_draw_bitmaps(recorder.beginRecording(10, 10, NULL, 0)); 1626 SkAutoTUnref<SkPicture> picture(recorder.endRecording()); 1627} 1628 1629DEF_TEST(Canvas_EmptyBitmap, r) { 1630 SkBitmap dst; 1631 dst.allocN32Pixels(10, 10); 1632 SkCanvas canvas(dst); 1633 1634 test_draw_bitmaps(&canvas); 1635} 1636