commit 44ff5a76d42b2ede0b4f08bf6673d7141855275a
author Geoff Lang <geofflang@chromium.org> Fri Feb 03 15:15:43 2017 -0500
committer Commit Bot <commit-bot@chromium.org> Mon Feb 06 21:07:07 2017 +0000
tree 8243fb883e969d0371080dc572d24e5c58f0e096
parent c295e51609b7a31e4abc3f5259c24317b336efff

Validate xoffset and yoffset are multiples of blocksize.

Affects glCompressedTexSubImage and glCopyCompressedTexSubImage calls.

BUG=668223

Change-Id: Ie71faa1fa7dac12cec51a2e29e0ce212ac54e411
Reviewed-on: https://chromium-review.googlesource.com/437605
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

src/libANGLE/validationES2.cpp

diff --git a/src/libANGLE/validationES2.cpp b/src/libANGLE/validationES2.cpp
index b107f68..43a1b47 100644
--- a/src/libANGLE/validationES2.cpp
+++ b/src/libANGLE/validationES2.cpp
@@ -467,7 +467,8 @@
                           "internalformat is not a supported compressed internal format"));
                 return false;
         }
-        if (!ValidCompressedImageSize(context, actualInternalFormat, width, height))
+        if (!ValidCompressedImageSize(context, actualInternalFormat, xoffset, yoffset, width,
+                                      height))
         {
             context->handleError(Error(GL_INVALID_OPERATION));
             return false;