AuroraMiddleware/skia2
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
defe6fdbc8
skia2/tests/TileGridTest.cpp
commit-bot@chromium.org 0e9e6a3313 Roll back tests/TileGridTest.cpp back to where ASAN was happy. 
Revert "Change tilegrid test to test it directly, rather than through SkPicture"
This reverts commit 7ae3bc7ffb.

Revert "Fix result order reliance"
This reverts commit be4825c873.

BUG=skia:2345
R=reed@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/216793006

git-svn-id: http://skia.googlecode.com/svn/trunk@13981 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-03-28 17:57:14 +00:00

251 lines
10 KiB
C++
Raw Blame History

/*
* 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 "SkBitmapDevice.h"
#include "SkCanvas.h"
#include "SkTileGrid.h"
#include "SkTileGridPicture.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) {}
virtual void drawRect(const SkRect& rect, const SkPaint&) {
// This capture occurs before quick reject.
fRects.push(rect);
}
SkTDArray<SkRect> fRects;
};
static void verifyTileHits(skiatest::Reporter* reporter, SkIRect rect,
uint32_t tileMask, int borderPixels = 0) {
SkTileGridPicture::TileGridInfo info;
info.fMargin.set(borderPixels, borderPixels);
info.fOffset.setZero();
info.fTileInterval.set(10 - 2 * borderPixels, 10 - 2 * borderPixels);
SkTileGrid grid(2, 2, info, NULL);
grid.insert(NULL, rect, false);
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
SkTileGridPicture::TileGridInfo info;
info.fMargin.setEmpty();
info.fOffset.setZero();
info.fTileInterval.set(10, 10);
SkTileGridPicture picture(20, 20, info);
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.allocN32Pixels(1, 1);
// Test parts of top-left tile
{
MockCanvas mockCanvas(store);
picture.draw(&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.draw(&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.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
{
MockCanvas mockCanvas(store);
mockCanvas.translate(-16.0f, -16.0f);
picture.draw(&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.draw(&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.draw(&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.draw(&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.draw(&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
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.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.draw(&mockCanvas);
REPORTER_ASSERT(reporter, 1 == mockCanvas.fRects.count());
REPORTER_ASSERT(reporter, rect1 == mockCanvas.fRects[0]);
}
{
// Encroaching border by one pixel
MockCanvas mockCanvas(moreThanATileBitmap);
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.
MockCanvas mockCanvas(tileBitmap);
mockCanvas.translate(SkIntToScalar(-8), SkIntToScalar(-8));
picture.draw(&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.draw(&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.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.
MockCanvas mockCanvas(tinyBitmap);
mockCanvas.translate(-8.0f, -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.
}
}
DEF_TEST(TileGrid, reporter) {
// Out of bounds
verifyTileHits(reporter, SkIRect::MakeXYWH(30, 0, 1, 1), 0);
verifyTileHits(reporter, SkIRect::MakeXYWH(0, 30, 1, 1), 0);
verifyTileHits(reporter, SkIRect::MakeXYWH(-10, 0, 1, 1), 0);
verifyTileHits(reporter, SkIRect::MakeXYWH(0, -10, 1, 1), 0);
// Dilation for AA consideration
verifyTileHits(reporter, SkIRect::MakeXYWH(0, 0, 9, 9), kTopLeft_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(0, 0, 10, 10), kAll_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(9, 9, 1, 1), kAll_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(10, 10, 1, 1), kAll_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(11, 11, 1, 1), kBottomRight_Tile);
// BorderPixels
verifyTileHits(reporter, SkIRect::MakeXYWH(0, 0, 6, 6), kTopLeft_Tile, 1);
verifyTileHits(reporter, SkIRect::MakeXYWH(0, 0, 7, 7), kAll_Tile, 1);
verifyTileHits(reporter, SkIRect::MakeXYWH(9, 9, 1, 1), kAll_Tile, 1);
verifyTileHits(reporter, SkIRect::MakeXYWH(10, 10, 1, 1), kBottomRight_Tile, 1);
verifyTileHits(reporter, SkIRect::MakeXYWH(17, 17, 1, 1), kBottomRight_Tile, 1);
// BBoxes that overlap tiles
verifyTileHits(reporter, SkIRect::MakeXYWH(5, 5, 10, 1), kTopLeft_Tile | kTopRight_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(5, 5, 1, 10), kTopLeft_Tile |
kBottomLeft_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(5, 5, 10, 10), kAll_Tile);
verifyTileHits(reporter, SkIRect::MakeXYWH(-10, -10, 40, 40), kAll_Tile);
}
Reference in New Issue View Git Blame Copy Permalink