static void TestUnalignedQuery(skiatest::Reporter* reporter) { // Use SkTileGridPicture to generate a SkTileGrid with a helper SkTileGridPicture picture(10, 10, 20, 20); SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(8), SkIntToScalar(8)); SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(11), SkIntToScalar(11), SkIntToScalar(1), SkIntToScalar(1)); SkCanvas* canvas = picture.beginRecording(20, 20, SkPicture::kOptimizeForClippedPlayback_RecordingFlag); SkPaint paint; canvas->drawRect(rect1, paint); canvas->drawRect(rect2, paint); picture.endRecording(); SkBitmap store; store.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); store.allocPixels(); // Test parts of top-left tile { SkDevice device(store); MockCanvas mockCanvas(&device); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); } { SkDevice device(store); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-7.99f), SkFloatToScalar(-7.99f)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); } // Corner overlap { SkDevice device(store); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-9.5f), SkFloatToScalar(-9.5f)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]); } // Intersect bottom right tile, but does not overlap rect 2 { SkDevice device(store); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-16.0f), SkFloatToScalar(-16.0f)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]); } }
static void TestOverlapOffsetQueryAlignment(skiatest::Reporter* reporter) { // Use SkTileGridPicture to generate a SkTileGrid with a helper SkTileGridPicture::TileGridInfo info; info.fMargin.set(1, 1); info.fOffset.set(-1, -1); info.fTileInterval.set(8, 8); SkTileGridPicture picture(20, 20, info); // rect landing entirely in top left tile SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(1), SkIntToScalar(1)); // rect landing entirely in center tile SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(12), SkIntToScalar(12), SkIntToScalar(1), SkIntToScalar(1)); // rect landing entirely in bottomright tile SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(19), SkIntToScalar(19), SkIntToScalar(1), SkIntToScalar(1)); SkCanvas* canvas = picture.beginRecording(20, 20, SkPicture::kOptimizeForClippedPlayback_RecordingFlag); SkPaint paint; canvas->drawRect(rect1, paint); canvas->drawRect(rect2, paint); canvas->drawRect(rect3, paint); picture.endRecording(); SkBitmap tileBitmap; tileBitmap.setConfig(SkBitmap::kARGB_8888_Config, 10, 10); tileBitmap.allocPixels(); SkBitmap moreThanATileBitmap; moreThanATileBitmap.setConfig(SkBitmap::kARGB_8888_Config, 11, 11); moreThanATileBitmap.allocPixels(); SkBitmap tinyBitmap; tinyBitmap.setConfig(SkBitmap::kARGB_8888_Config, 2, 2); tinyBitmap.allocPixels(); // Test parts of top-left tile { // The offset should cancel the top and left borders of the top left tile // So a look-up at interval 0-10 should be grid aligned, SkBitmapDevice device(tileBitmap); MockCanvas mockCanvas(&device); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); } { // Encroaching border by one pixel SkBitmapDevice device(moreThanATileBitmap); MockCanvas mockCanvas(&device); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]); } { // Tile stride is 8 (tileWidth - 2 * border pixels // so translating by 8, should make query grid-aligned // with middle tile. SkBitmapDevice device(tileBitmap); MockCanvas mockCanvas(&device); mockCanvas.translate(SkIntToScalar(-8), SkIntToScalar(-8)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]); } { SkBitmapDevice device(tileBitmap); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-7.9f), SkFloatToScalar(-7.9f)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]); } { SkBitmapDevice device(tileBitmap); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-8.1f), SkFloatToScalar(-8.1f)); picture.draw(&mockCanvas); REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count()); REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]); REPORTER_ASSERT(reporter, rect3 == mockCanvas.fRects[1]); } { // Regression test for crbug.com/234688 // Once the 2x2 device region is inset by margin, it yields an empty // adjusted region, sitting right on top of the tile boundary. SkBitmapDevice device(tinyBitmap); MockCanvas mockCanvas(&device); mockCanvas.translate(SkFloatToScalar(-8.0f), SkFloatToScalar(-8.0f)); picture.draw(&mockCanvas); // This test passes by not asserting. We do not validate the rects recorded // because the result is numerically unstable (floating point equality). // The content of any one of the four tiles of the tilegrid would be a valid // result since any bbox that covers the center point of the canvas will be // recorded in all four tiles. } }