Use wider types to compute bounds area and avoid overflow

Bug: skia:
Change-Id: I3ea8c8acf56d103a8f38e652b418239e0f517839
Reviewed-on: https://skia-review.googlesource.com/52720
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/gpu/GrSoftwarePathRenderer.cpp b/src/gpu/GrSoftwarePathRenderer.cpp
index 9f876f1213..dd0e272dbb 100644
--- a/src/gpu/GrSoftwarePathRenderer.cpp
+++ b/src/gpu/GrSoftwarePathRenderer.cpp
@@ -256,8 +256,9 @@ bool GrSoftwarePathRenderer::onDrawPath(const DrawPathArgs& args) {
         // Use the cache only if >50% of the path is visible.
         int unclippedWidth = unclippedDevShapeBounds.width();
         int unclippedHeight = unclippedDevShapeBounds.height();
-        int unclippedArea = unclippedWidth * unclippedHeight;
-        int clippedArea = clippedDevShapeBounds.width() * clippedDevShapeBounds.height();
+        int64_t unclippedArea = sk_64_mul(unclippedWidth, unclippedHeight);
+        int64_t clippedArea = sk_64_mul(clippedDevShapeBounds.width(),
+                                        clippedDevShapeBounds.height());
         int maxTextureSize = args.fRenderTargetContext->caps()->maxTextureSize();
         if (unclippedArea > 2 * clippedArea || unclippedWidth > maxTextureSize ||
             unclippedHeight > maxTextureSize) {