Prevent degenerate linear gradient instantiation
If the point distance exceeds SkScalar, nasty things tend to happen.
R=reed@google.com
BUG=636194
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2234663002
Review-Url: https://codereview.chromium.org/2234663002
diff --git a/tests/GradientTest.cpp b/tests/GradientTest.cpp
index 7add42d..3ed2f51 100644
--- a/tests/GradientTest.cpp
+++ b/tests/GradientTest.cpp
@@ -253,6 +253,22 @@
// Passes if we don't trigger asserts.
}
+// http://crbug.com/636194
+static void text_degenerate_linear(skiatest::Reporter*) {
+ SkPaint p;
+ const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN };
+ const SkPoint pts[] = {
+ SkPoint::Make(-46058024627067344430605278824628224.0f, 0),
+ SkPoint::Make(SK_ScalarMax, 0)
+ };
+
+ p.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2, SkShader::kClamp_TileMode));
+ sk_sp<SkSurface> surface(SkSurface::MakeRasterN32Premul(50, 50));
+ surface->getCanvas()->drawPaint(p);
+
+ // Passes if we don't trigger asserts.
+}
+
DEF_TEST(Gradient, reporter) {
TestGradientShaders(reporter);
TestConstantGradient(reporter);
@@ -261,4 +277,5 @@
test_linear_fuzz(reporter);
test_two_point_conical_zero_radius(reporter);
test_clamping_overflow(reporter);
+ text_degenerate_linear(reporter);
}