commit b3dced293da6ec6fd02b48cddcbec67b085266a0
author Gregoire Payen de La Garanderie <Gregory.Payen@imgtec.com> Mon Jan 12 14:54:55 2015 +0000
committer Jamie Madill <jmadill@chromium.org> Mon Feb 09 14:41:17 2015 +0000
tree 4d5f81397106e3237c32bee60e3800ffec5dba8e
parent c38fa8a5f4e8c180c68fbe7304f0c602be04dfca

Implementing gl_InstanceID in the HLSL compiler.

Fixes:
dEQP-GLES3.functional.instanced.draw_arrays_instanced.instance_id
dEQP-GLES3.functional.instanced.draw_arrays_instanced.mixed
dEQP-GLES3.functional.instanced.draw_elements_instanced.instance_id
dEQP-GLES3.functional.instanced.draw_elements_instanced.mixed

BUG=angle:601

Change-Id: I6e120eebc90d00e025fc58f096064e6ed1da826b
Reviewed-on: https://chromium-review.googlesource.com/246911
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Gregoire Payen de La Garanderie <Gregory.Payen@imgtec.com>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>

src/compiler/translator/OutputHLSL.cpp

diff --git a/src/compiler/translator/OutputHLSL.cpp b/src/compiler/translator/OutputHLSL.cpp
index 065719b..44d348a 100644
--- a/src/compiler/translator/OutputHLSL.cpp
+++ b/src/compiler/translator/OutputHLSL.cpp
@@ -110,6 +110,7 @@
     mUsesPointCoord = false;
     mUsesFrontFacing = false;
     mUsesPointSize = false;
+    mUsesInstanceID = false;
     mUsesFragDepth = false;
     mUsesXor = false;
     mUsesDiscardRewriting = false;
@@ -498,6 +499,11 @@
             out << "static float gl_PointSize = float(1);\n";
         }
 
+        if (mUsesInstanceID)
+        {
+            out << "static int gl_InstanceID;";
+        }
+
         out << "\n"
                "// Varyings\n";
         out <<  varyings;
@@ -1305,6 +1311,11 @@
             mUsesPointSize = true;
             out << name;
         }
+        else if (qualifier == EvqInstanceID)
+        {
+            mUsesInstanceID = true;
+            out << name;
+        }
         else if (name == "gl_FragDepthEXT")
         {
             mUsesFragDepth = true;