Revert "Revert "SkRegion: more robust validation""
This reverts commit 7f4124058eda42e8379f2e979fabc339b8580348.
Original change's description:
> Revert "SkRegion: more robust validation"
>
> This reverts commit 711450e948b9900011dc0d474f82bf7bc9913259.
>
> Reason for revert: speculative revert to fix chrome roll.
>
> Original change's description:
> > SkRegion: more robust validation
> >
> > BUG=oss-fuzz:1864
> > Change-Id: I4c3d3c4c7b0717399fe16f227e032682b13ebc74
> > Reviewed-on: https://skia-review.googlesource.com/20322
> > Reviewed-by: Cary Clark <caryclark@google.com>
> > Commit-Queue: Hal Canary <halcanary@google.com>
TBR=halcanary@google.com,caryclark@google.com,reed@google.com
Change-Id: I1e5500cb83adeeda544282577ce55812e1b5d682
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: oss-fuzz:1864
Reviewed-on: https://skia-review.googlesource.com/20501
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/tests/RegionTest.cpp b/tests/RegionTest.cpp
index 2a5d0a5..7fcf101 100644
--- a/tests/RegionTest.cpp
+++ b/tests/RegionTest.cpp
@@ -328,6 +328,13 @@
REPORTER_ASSERT(r, 0 != region.readFromMemory(data, sizeof(data)));
}
{
+ // Example of valid data with 4 intervals
+ int32_t data[] = {19, 0, 0, 30, 30, 3, 4, 0, 10, 2, 0, 10, 20, 30,
+ 2147483647, 20, 0, 2147483647, 30, 2, 0, 10, 20, 30,
+ 2147483647, 2147483647};
+ REPORTER_ASSERT(r, 0 != region.readFromMemory(data, sizeof(data)));
+ }
+ {
// Short count
int32_t data[] = {8, 0, 0, 10, 10, 1, 2, 0, 10, 2, 0, 4, 6, 10,
2147483647, 2147483647};
@@ -363,4 +370,29 @@
-1, 2147483647};
REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data)));
}
+ {
+ // starts with empty yspan
+ int32_t data[] = {12, 0, 0, 10, 10, 2, 2, -5, 0, 0, 2147483647, 10,
+ 2, 0, 4, 6, 10, 2147483647, 2147483647};
+ REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data)));
+ }
+ {
+ // ends with empty yspan
+ int32_t data[] = {12, 0, 0, 10, 10, 2, 2, 0, 10, 2, 0, 4, 6, 10,
+ 2147483647, 15, 0, 2147483647, 2147483647};
+ REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data)));
+ }
+ {
+ // y intervals out of order
+ int32_t data[] = {19, 0, -20, 30, 10, 3, 4, 0, 10, 2, 0, 10, 20, 30,
+ 2147483647, -20, 0, 2147483647, -10, 2, 0, 10, 20, 30,
+ 2147483647, 2147483647};
+ REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data)));
+ }
+ {
+ // x intervals out of order
+ int32_t data[] = {9, 0, 0, 10, 10, 1, 2, 0, 10, 2, 6, 10, 0, 4,
+ 2147483647, 2147483647};
+ REPORTER_ASSERT(r, 0 == region.readFromMemory(data, sizeof(data)));
+ }
}