commit 13b708f2ca0607b1334c88ef3f77d89b7f8acbb4
author Lingfeng Yang <lfy@google.com> Wed Mar 21 12:14:10 2018 -0700
committer Commit Bot <commit-bot@chromium.org> Tue Mar 27 16:45:28 2018 +0000
tree 76c4ca24a225edd15c1f063deb67371c9edd2491
parent 7a06ac1bbe34785c3a0bdfff824a3e360828ca9d

GLES1: glAlphaFunc

BUG=angleproject:2306

Change-Id: I0bf229d3ab8a4a1217c12b434dcd8fa67d7cbadc
Reviewed-on: https://chromium-review.googlesource.com/973897
Commit-Queue: Lingfeng Yang <lfy@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/validationES2.cpp

diff --git a/src/libANGLE/validationES2.cpp b/src/libANGLE/validationES2.cpp
index 5893f81..8146679 100644
--- a/src/libANGLE/validationES2.cpp
+++ b/src/libANGLE/validationES2.cpp
@@ -792,6 +792,10 @@
         case GL_ROBUST_RESOURCE_INITIALIZATION_ANGLE:
             return queryOnly && context->getExtensions().robustResourceInitialization;
 
+        // GLES1 emulation: GLES1-specific caps
+        case GL_ALPHA_TEST:
+            return context->getClientVersion() < Version(2, 0);
+
         default:
             return false;
     }