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feat(region): add SRgnGetRectsf

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Adam Heinermann 2025-04-20 19:56:40 -07:00 • committed by fallenoak
parent f6d4a93652
commit e1587a932c
3 changed files with 257 additions and 0 deletions
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69
test/Region.cpp
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@ -94,3 +94,72 @@ TEST_CASE("SRgnCombineRectf", "[region]") {
SRgnDelete(region);
}
}
TEST_CASE("SRgnGetRectsf", "[region]") {
SECTION("retrieves empty list if nothing put in") {
HSRGN rgn;
SRgnCreate(&rgn, 0);
uint32_t numrects = 1;
RECTF buffer[1];
SRgnGetRectsf(rgn, &numrects, buffer);
CHECK(numrects == 0);
SRgnDelete(rgn);
}
SECTION("retrieves all rects that were put in") {
HSRGN rgn;
SRgnCreate(&rgn, 0);
RECTF rct1 = { 5, 5, 10, 10 };
RECTF rct2 = { 0, 0, 1, 1 };
SRgnCombineRectf(rgn, &rct1, nullptr, SRGN_OR);
SRgnCombineRectf(rgn, &rct2, nullptr, SRGN_OR);
uint32_t numrects = 0;
RECTF buffer[2];
SRgnGetRectsf(rgn, &numrects, nullptr);
REQUIRE(numrects == 2);
SRgnGetRectsf(rgn, &numrects, buffer);
CHECK(buffer[0].left == rct2.left);
CHECK(buffer[0].bottom == rct2.bottom);
CHECK(buffer[0].right == rct2.right);
CHECK(buffer[0].top == rct2.top);
CHECK(buffer[1].left == rct1.left);
CHECK(buffer[1].bottom == rct1.bottom);
CHECK(buffer[1].right == rct1.right);
CHECK(buffer[1].top == rct1.top);
SRgnDelete(rgn);
}
SECTION("automatically merges overlapping rects") {
HSRGN rgn;
SRgnCreate(&rgn, 0);
RECTF rct1 = { -10, -10, 10, 10 };
RECTF rct2 = { 0, 0, 1, 1 };
SRgnCombineRectf(rgn, &rct1, nullptr, SRGN_OR);
SRgnCombineRectf(rgn, &rct2, nullptr, SRGN_OR);
uint32_t numrects = 0;
RECTF buffer[1];
SRgnGetRectsf(rgn, &numrects, nullptr);
REQUIRE(numrects == 1);
SRgnGetRectsf(rgn, &numrects, buffer);
CHECK(buffer[0].left == -10);
CHECK(buffer[0].bottom == -10);
CHECK(buffer[0].right == 10);
CHECK(buffer[0].top == 10);
SRgnDelete(rgn);
}
}