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65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/* vim:set ts=2 sw=2 sts=2 et: */
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/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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#include "TiledLayerBuffer.h"
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#include "gtest/gtest.h"
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namespace mozilla {
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namespace layers {
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TEST(TiledLayerBuffer, TileStart) {
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ASSERT_EQ(RoundDownToTileEdge(10, 256), 0);
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ASSERT_EQ(RoundDownToTileEdge(-10, 256), -256);
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}
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TEST(TiledLayerBuffer, TilesPlacement) {
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for (int firstY = -10; firstY < 10; ++firstY) {
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for (int firstX = -10; firstX < 10; ++firstX) {
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for (int height = 1; height < 10; ++height) {
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for (int width = 1; width < 10; ++width) {
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const TilesPlacement p1 = TilesPlacement(firstX, firstY, width, height);
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// Check that HasTile returns false with some positions that we know
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// not to be in the rectangle of the TilesPlacement.
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ASSERT_FALSE(p1.HasTile(TileIntPoint(firstX - 1, 0)));
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ASSERT_FALSE(p1.HasTile(TileIntPoint(0, firstY - 1)));
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ASSERT_FALSE(p1.HasTile(TileIntPoint(firstX + width + 1, 0)));
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ASSERT_FALSE(p1.HasTile(TileIntPoint(0, firstY + height + 1)));
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// Verify that all positions within the rect that defines the
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// TilesPlacement map to indices between 0 and width*height.
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for (int y = firstY; y < (firstY+height); ++y) {
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for (int x = firstX; x < (firstX+width); ++x) {
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ASSERT_TRUE(p1.HasTile(TileIntPoint(x,y)));
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ASSERT_TRUE(p1.TileIndex(TileIntPoint(x, y)) >= 0);
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ASSERT_TRUE(p1.TileIndex(TileIntPoint(x, y)) < width * height);
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}
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}
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// XXX - This causes some versions of gcc to warn that it optimizes
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// away the test, which gets caught in -WError in PGO builds.
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// The lazy thing to do is to just comment this out since this specific
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// test isn't critically important, but we should remove the warning instead.
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// cf. bug 1179287
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//
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// Verify that indices map to positions that are within the rect that
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// defines the TilesPlacement.
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// for (int i = 0; i < width * height; ++i) {
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// ASSERT_TRUE(p1.TilePosition(i).x >= firstX);
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// ASSERT_TRUE(p1.TilePosition(i).x < firstX + width);
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// ASSERT_TRUE(p1.TilePosition(i).y >= firstY);
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// ASSERT_TRUE(p1.TilePosition(i).y < firstY + height);
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// }
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}
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}
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}
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}
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}
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}
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}
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