commit 2944fbb5329fc3026c541fa818489954d910625d
author aleksandar.stojiljkovic <aleksandar.stojiljkovic@intel.com> Thu Nov 05 07:48:12 2015 -0800
committer Commit bot <commit-bot@chromium.org> Thu Nov 05 07:48:12 2015 -0800
tree ddaaae82ad283bccb9aadfbf67ba0152161ccf57
parent 8377e80951326f94714b31ede711cd0757d37fcd

Assert when running SampleApp with msaa 16 on Windows 10

Trivial: skip calling SkWGLExtensions::selectFormat with 0 elements,
 and handle if called.

BUG=4529

Review URL: https://codereview.chromium.org/1427583007

src/utils/win/SkWGL_win.cpp

diff --git a/src/utils/win/SkWGL_win.cpp b/src/utils/win/SkWGL_win.cpp
index bc22795..5afcae9 100644
--- a/src/utils/win/SkWGL_win.cpp
+++ b/src/utils/win/SkWGL_win.cpp
@@ -126,6 +126,9 @@
                                   int formatCount,
                                   HDC dc,
                                   int desiredSampleCount) const {
+    if (formatCount <= 0) {
+        return -1;
+    }
     PixelFormat desiredFormat = {
         0,
         desiredSampleCount,