commit 4e94fea8f3b362987942af28919df4d04e0c7f04
author Zhenyao Mo <zmo@chromium.org> Tue Aug 09 14:31:37 2016 -0700
committer Commit Bot <commit-bot@chromium.org> Tue Aug 16 00:42:25 2016 +0000
tree 404aab3abcffd9b9913e417345fbded60f90a85a
parent 856c497e47988e69afaf17ebec3d8c9d02e340c7

Emulate gl_FragColor broadcasting behavior when GL_EXT_draw_buffers is
enabled.

BUG=angleproject:1467,635433
TEST=WebGL conformance, angle_unittests

Change-Id: I9eb4ce715732087a3786da886f42243716f2b9b2
Reviewed-on: https://chromium-review.googlesource.com/367532
Commit-Queue: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/compiler/translator/Compiler.cpp

diff --git a/src/compiler/translator/Compiler.cpp b/src/compiler/translator/Compiler.cpp
index 1469a33..62dc2cf 100644
--- a/src/compiler/translator/Compiler.cpp
+++ b/src/compiler/translator/Compiler.cpp
@@ -8,6 +8,7 @@
 #include "compiler/translator/Compiler.h"
 #include "compiler/translator/CallDAG.h"
 #include "compiler/translator/DeferGlobalInitializers.h"
+#include "compiler/translator/EmulateGLFragColorBroadcast.h"
 #include "compiler/translator/ForLoopUnroll.h"
 #include "compiler/translator/Initialize.h"
 #include "compiler/translator/InitializeParseContext.h"
@@ -386,6 +387,13 @@
             root->traverse(&gen);
         }
 
+        if (success && shaderType == GL_FRAGMENT_SHADER && shaderVersion == 100 &&
+            compileResources.EXT_draw_buffers && compileResources.MaxDrawBuffers > 1 &&
+            IsExtensionEnabled(extensionBehavior, "GL_EXT_draw_buffers"))
+        {
+            EmulateGLFragColorBroadcast(root, compileResources.MaxDrawBuffers, &outputVariables);
+        }
+
         if (success)
         {
             DeferGlobalInitializers(root);