CanvasStateTest.cpp revision 20146b3f7339d2c71c416397135e70e34f7fedb1
15587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 25587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com/* 35587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com * Copyright 2013 Google Inc. 45587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com * 55587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com * Use of this source code is governed by a BSD-style license that can be 65587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com * found in the LICENSE file. 75587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com */ 85587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 95587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "Test.h" 105587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkBitmapDevice.h" 115587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkCanvas.h" 125587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkCanvasStateUtils.h" 135587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkDrawFilter.h" 145587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkPaint.h" 155587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkRect.h" 165587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "SkRRect.h" 175587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 185587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comstatic void test_complex_layers(skiatest::Reporter* reporter) { 195587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 205587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int WIDTH = 400; 215587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int HEIGHT = 400; 225587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int SPACER = 10; 235587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 2420146b3f7339d2c71c416397135e70e34f7fedb1djsollen@google.com SkRect rect = SkRect::MakeXYWH(SkIntToScalar(SPACER), SkIntToScalar(SPACER), 2520146b3f7339d2c71c416397135e70e34f7fedb1djsollen@google.com SkIntToScalar(WIDTH-(2*SPACER)), 2620146b3f7339d2c71c416397135e70e34f7fedb1djsollen@google.com SkIntToScalar((HEIGHT-(2*SPACER)) / 7)); 275587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 285587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const SkBitmap::Config configs[] = { SkBitmap::kRGB_565_Config, 295587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkBitmap::kARGB_8888_Config 305587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com }; 315587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int configCount = sizeof(configs) / sizeof(SkBitmap::Config); 325587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 335587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int layerAlpha[] = { 255, 255, 0 }; 345587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const SkCanvas::SaveFlags flags[] = { SkCanvas::kARGB_NoClipLayer_SaveFlag, 355587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas::kARGB_ClipLayer_SaveFlag, 365587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas::kARGB_NoClipLayer_SaveFlag 375587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com }; 385587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, sizeof(layerAlpha) == sizeof(flags)); 395587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com const int layerCombinations = sizeof(layerAlpha) / sizeof(int); 405587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 415587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com for (int i = 0; i < configCount; ++i) { 425587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkBitmap bitmaps[2]; 435587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com for (int j = 0; j < 2; ++j) { 445587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bitmaps[j].setConfig(configs[i], WIDTH, HEIGHT); 455587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bitmaps[j].allocPixels(); 465587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 475587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas canvas(bitmaps[j]); 485587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 495587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.drawColor(SK_ColorRED); 505587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 515587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com for (int k = 0; k < layerCombinations; ++k) { 525587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com // draw a rect within the layer's bounds and again outside the layer's bounds 535587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.saveLayerAlpha(&rect, layerAlpha[k], flags[k]); 545587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 555587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvasState* state = NULL; 565587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas* tmpCanvas = NULL; 575587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com if (j) { 585587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com state = SkCanvasStateUtils::CaptureCanvasState(&canvas); 595587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, state); 605587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas = SkCanvasStateUtils::CreateFromCanvasState(state); 615587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, tmpCanvas); 625587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com } else { 635587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas = SkRef(&canvas); 645587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com } 655587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 665587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkPaint bluePaint; 675587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bluePaint.setColor(SK_ColorBLUE); 685587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bluePaint.setStyle(SkPaint::kFill_Style); 695587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 705587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas->drawRect(rect, bluePaint); 715587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas->translate(0, rect.height() + SPACER); 725587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas->drawRect(rect, bluePaint); 735587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 745587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas->unref(); 755587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvasStateUtils::ReleaseCanvasState(state); 765587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 775587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.restore(); 785587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 795587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com // translate the canvas for the next iteration 805587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.translate(0, 2*(rect.height() + SPACER)); 815587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com } 825587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com } 835587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 845587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com // now we memcmp the two bitmaps 855587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, bitmaps[0].getSize() == bitmaps[1].getSize()); 865587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, !memcmp(bitmaps[0].getPixels(), 875587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bitmaps[1].getPixels(), 885587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com bitmaps[0].getSize())); 895587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com } 905587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com} 915587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 925587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com//////////////////////////////////////////////////////////////////////////////// 935587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 945587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comclass TestDrawFilter : public SkDrawFilter { 955587ac09beec4c056332504f3fa85990520b43fddjsollen@google.compublic: 965587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com virtual bool filter(SkPaint*, Type) SK_OVERRIDE { return true; } 975587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com}; 985587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 995587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comstatic void test_draw_filters(skiatest::Reporter* reporter) { 1005587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com TestDrawFilter drawFilter; 1015587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkBitmapDevice device(SkBitmap::kARGB_8888_Config, 10, 10); 1025587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas canvas(&device); 1035587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1045587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.setDrawFilter(&drawFilter); 1055587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1065587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvasState* state = SkCanvasStateUtils::CaptureCanvasState(&canvas); 1075587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, state); 1085587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas* tmpCanvas = SkCanvasStateUtils::CreateFromCanvasState(state); 1095587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, tmpCanvas); 1105587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1115587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, NULL != canvas.getDrawFilter()); 1125587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, NULL == tmpCanvas->getDrawFilter()); 1135587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1145587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com tmpCanvas->unref(); 1155587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvasStateUtils::ReleaseCanvasState(state); 1165587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com} 1175587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1185587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com//////////////////////////////////////////////////////////////////////////////// 1195587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1205587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comstatic void test_soft_clips(skiatest::Reporter* reporter) { 1215587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkBitmapDevice device(SkBitmap::kARGB_8888_Config, 10, 10); 1225587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvas canvas(&device); 1235587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1245587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkRRect roundRect; 1255587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com roundRect.setOval(SkRect::MakeWH(5, 5)); 1265587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1275587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com canvas.clipRRect(roundRect, SkRegion::kIntersect_Op, true); 1285587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1295587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com SkCanvasState* state = SkCanvasStateUtils::CaptureCanvasState(&canvas); 1305587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com REPORTER_ASSERT(reporter, !state); 1315587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com} 1325587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1335587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com//////////////////////////////////////////////////////////////////////////////// 1345587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1355587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comstatic void test_canvas_state_utils(skiatest::Reporter* reporter) { 1365587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com test_complex_layers(reporter); 1375587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com test_draw_filters(reporter); 1385587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com test_soft_clips(reporter); 1395587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com} 1405587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com 1415587ac09beec4c056332504f3fa85990520b43fddjsollen@google.com#include "TestClassDef.h" 1425587ac09beec4c056332504f3fa85990520b43fddjsollen@google.comDEFINE_TESTCLASS("CanvasState", TestCanvasStateClass, test_canvas_state_utils) 143