NATRON_NAMESPACE_USING
TEST(BitmapTest,
SimpleRect)
{
RectI rod(0, 0, 100, 100);
Bitmap bm(rod);
///assert that the union of all the non rendered rects is the rod
std::list<RectI> nonRenderedRects;
bm.minimalNonMarkedRects(rod, nonRenderedRects);
RectI nonRenderedRectsUnion;
for (std::list<RectI>::iterator it = nonRenderedRects.begin(); it != nonRenderedRects.end(); ++it) {
nonRenderedRectsUnion.merge(*it);
}
ASSERT_TRUE(rod == nonRenderedRectsUnion);
///assert that the "underlying" bitmap is clean
const char* map = bm.getBitmap();
ASSERT_TRUE( !memchr( map, 1, rod.area() ) );
RectI halfRoD(0, 0, 100, 50);
bm.markForRendered(halfRoD);
///assert that non of the rendered rects interesect the non rendered half
RectI nonRenderedHalf(0, 50, 100, 100);
bm.minimalNonMarkedRects(rod, nonRenderedRects);
for (std::list<RectI>::iterator it = nonRenderedRects.begin(); it != nonRenderedRects.end(); ++it) {
ASSERT_TRUE( (*it).intersects(nonRenderedHalf) );
}
///assert that the underlying bitmap is marked as expected
const char* start = map;
///check that there are only ones in the rendered half
ASSERT_TRUE( !memchr( start, 0, halfRoD.area() ) );
///check that there are only 0s in the non rendered half
start = map + halfRoD.area();
ASSERT_TRUE( !memchr( start, 1, halfRoD.area() ) );
///mark for renderer the other half of the rod
bm.markForRendered(nonRenderedHalf);
///assert that the bm is rendered totally
nonRenderedRects.clear();
bm.minimalNonMarkedRects(rod, nonRenderedRects);
ASSERT_TRUE( nonRenderedRects.empty() );
ASSERT_TRUE( !memchr( map, 0, rod.area() ) );
///More complex example where A,B,C,D are not rendered check that both trimap & bitmap yield the same result
// BBBBBBBBBBBBBB
// BBBBBBBBBBBBBB
// CXXXXXXXXXXDDD
// CXXXXXXXXXXDDD
// CXXXXXXXXXXDDD
// CXXXXXXXXXXDDD
// AAAAAAAAAAAAAA
bm.clear(rod);
RectI xBox(20, 20, 80, 80);
bm.markForRendered(xBox);
nonRenderedRects.clear();
bm.minimalNonMarkedRects(rod, nonRenderedRects);
EXPECT_TRUE(nonRenderedRects.size() == 4);
nonRenderedRects.clear();
bool beingRenderedElseWhere = false;
bm.minimalNonMarkedRects_trimap(rod, nonRenderedRects, &beingRenderedElseWhere);
EXPECT_TRUE(nonRenderedRects.size() == 4);
ASSERT_TRUE(beingRenderedElseWhere == false);
nonRenderedRects.clear();
//Mark the A rectangle as being rendered
RectI aBox(0, 0, 20, 20);
bm.markForRendering(aBox);
bm.minimalNonMarkedRects_trimap(rod, nonRenderedRects, &beingRenderedElseWhere);
ASSERT_TRUE(beingRenderedElseWhere == true);
EXPECT_TRUE(nonRenderedRects.size() == 3);
} // TEST
