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Unified Diff: tests/TileGridTest.cpp

Issue 845623002: Remove SkTileGrid (except for TileGridInfo). (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: kill gridSupported Created 5 years, 11 months ago
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Index: tests/TileGridTest.cpp
diff --git a/tests/TileGridTest.cpp b/tests/TileGridTest.cpp
deleted file mode 100644
index 3cb32070b30bf442c52e47c69ed2e501a1186a76..0000000000000000000000000000000000000000
--- a/tests/TileGridTest.cpp
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkCanvas.h"
-#include "SkPictureRecorder.h"
-#include "SkTileGrid.h"
-#include "Test.h"
-
-enum Tile {
- kTopLeft_Tile = 0x1,
- kTopRight_Tile = 0x2,
- kBottomLeft_Tile = 0x4,
- kBottomRight_Tile = 0x8,
-
- kAll_Tile = kTopLeft_Tile | kTopRight_Tile | kBottomLeft_Tile | kBottomRight_Tile,
-};
-
-class MockCanvas : public SkCanvas {
-public:
- MockCanvas(const SkBitmap& bm) : SkCanvas(bm) {}
-
- void onDrawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE {
- // This capture occurs before quick reject.
- fRects.push(rect);
- }
-
- SkTDArray<SkRect> fRects;
-};
-
-static void verify_tile_hits(skiatest::Reporter* reporter, SkRect rect,
- uint32_t tileMask, int borderPixels = 0) {
- SkTileGridFactory::TileGridInfo info;
- info.fMargin.set(borderPixels, borderPixels);
- info.fOffset.setZero();
- info.fTileInterval.set(10 - 2 * borderPixels, 10 - 2 * borderPixels);
-
- SkAutoTMalloc<SkRect> rects(1);
- rects[0] = rect;
-
- SkTileGrid grid(2, 2, info);
- grid.insert(&rects, 1);
- REPORTER_ASSERT(reporter, grid.tileCount(0, 0) ==
- ((tileMask & kTopLeft_Tile)? 1 : 0));
- REPORTER_ASSERT(reporter, grid.tileCount(1, 0) ==
- ((tileMask & kTopRight_Tile)? 1 : 0));
- REPORTER_ASSERT(reporter, grid.tileCount(0, 1) ==
- ((tileMask & kBottomLeft_Tile)? 1 : 0));
- REPORTER_ASSERT(reporter, grid.tileCount(1, 1) ==
- ((tileMask & kBottomRight_Tile)? 1 : 0));
-}
-
-DEF_TEST(TileGrid_UnalignedQuery, reporter) {
- // Use SkTileGridPicture to generate a SkTileGrid with a helper
- SkTileGridFactory::TileGridInfo info;
- info.fMargin.setEmpty();
- info.fOffset.setZero();
- info.fTileInterval.set(10, 10);
- SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
- SkIntToScalar(8), SkIntToScalar(8));
- SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(11), SkIntToScalar(11),
- SkIntToScalar(1), SkIntToScalar(1));
- SkTileGridFactory factory(info);
- SkPictureRecorder recorder;
- SkCanvas* canvas = recorder.beginRecording(20, 20, &factory, 0);
- SkPaint paint;
- canvas->drawRect(rect1, paint);
- canvas->drawRect(rect2, paint);
- SkAutoTUnref<SkPicture> picture(recorder.endRecording());
-
- SkBitmap store;
- store.allocN32Pixels(1, 1);
-
- // Test parts of top-left tile
- {
- MockCanvas mockCanvas(store);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- }
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(-7.99f, -7.99f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- }
- // Corner overlap
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(-9.5f, -9.5f);
- picture->playback(&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
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(-16.0f, -16.0f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
- }
- // Out of bounds queries, snap to border tiles
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(2.0f, 0.0f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- }
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(0.0f, 2.0f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- }
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(-22.0f, -16.0f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
- }
- {
- MockCanvas mockCanvas(store);
- mockCanvas.translate(-16.0f, -22.0f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
- }
-}
-
-DEF_TEST(TileGrid_OverlapOffsetQueryAlignment, reporter) {
- // Use SkTileGridPicture to generate a SkTileGrid with a helper
- SkTileGridFactory::TileGridInfo info;
- info.fMargin.set(1, 1);
- info.fOffset.set(-1, -1);
- info.fTileInterval.set(8, 8);
-
- // 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));
- SkTileGridFactory factory(info);
- SkPictureRecorder recorder;
- SkCanvas* canvas = recorder.beginRecording(20, 20, &factory, 0);
- SkPaint paint;
- canvas->drawRect(rect1, paint);
- canvas->drawRect(rect2, paint);
- canvas->drawRect(rect3, paint);
- SkAutoTUnref<SkPicture> picture(recorder.endRecording());
-
- SkBitmap tileBitmap;
- tileBitmap.allocN32Pixels(10, 10);
- SkBitmap moreThanATileBitmap;
- moreThanATileBitmap.allocN32Pixels(11, 11);
- SkBitmap tinyBitmap;
- tinyBitmap.allocN32Pixels(2, 2);
- // 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,
- MockCanvas mockCanvas(tileBitmap);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- }
- {
- // Encroaching border by one pixel
- MockCanvas mockCanvas(moreThanATileBitmap);
- picture->playback(&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.
- MockCanvas mockCanvas(tileBitmap);
- mockCanvas.translate(SkIntToScalar(-8), SkIntToScalar(-8));
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[0]);
- }
- {
- MockCanvas mockCanvas(tileBitmap);
- mockCanvas.translate(-7.9f, -7.9f);
- picture->playback(&mockCanvas);
- REPORTER_ASSERT(reporter, 2 == mockCanvas.fRects.count());
- REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
- REPORTER_ASSERT(reporter, rect2 == mockCanvas.fRects[1]);
- }
- {
- MockCanvas mockCanvas(tileBitmap);
- mockCanvas.translate(-8.1f, -8.1f);
- picture->playback(&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.
- MockCanvas mockCanvas(tinyBitmap);
- mockCanvas.translate(-8.0f, -8.0f);
- picture->playback(&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.
- }
-}
-
-DEF_TEST(TileGrid, reporter) {
- // Out of bounds
- verify_tile_hits(reporter, SkRect::MakeXYWH(30, 0, 1, 1), 0);
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, 30, 1, 1), 0);
- verify_tile_hits(reporter, SkRect::MakeXYWH(-10, 0, 1, 1), 0);
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, -10, 1, 1), 0);
-
- // Dilation for AA consideration
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 9, 9), kTopLeft_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 10, 10), kAll_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(9, 9, 1, 1), kAll_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(10, 10, 1, 1), kAll_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(11, 11, 1, 1), kBottomRight_Tile);
-
- // BorderPixels
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 6, 6), kTopLeft_Tile, 1);
- verify_tile_hits(reporter, SkRect::MakeXYWH(0, 0, 7, 7), kAll_Tile, 1);
- verify_tile_hits(reporter, SkRect::MakeXYWH(9, 9, 1, 1), kAll_Tile, 1);
- verify_tile_hits(reporter, SkRect::MakeXYWH(10, 10, 1, 1), kBottomRight_Tile, 1);
- verify_tile_hits(reporter, SkRect::MakeXYWH(17, 17, 1, 1), kBottomRight_Tile, 1);
-
- // BBoxes that overlap tiles
- verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 10, 1), kTopLeft_Tile | kTopRight_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 1, 10), kTopLeft_Tile | kBottomLeft_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(5, 5, 10, 10), kAll_Tile);
- verify_tile_hits(reporter, SkRect::MakeXYWH(-10, -10, 40, 40),kAll_Tile);
-}
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