Add basic support for ESSL3 vec2 (un)pack functions
The functions are emulated on HLSL, and use the native functions on
OpenGL 4.2+ and GLES3.0. Emulation for OpenGL versions <= 4.1 is not yet
implemented.
BUG=angle:865
Change-Id: I6803a1767dacdb3dca12f13924651fd38fcacb75
Reviewed-on: https://chromium-review.googlesource.com/240961
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>
diff --git a/src/compiler/translator/OutputGLSLBase.cpp b/src/compiler/translator/OutputGLSLBase.cpp
index 23dcef3..e367a44 100644
--- a/src/compiler/translator/OutputGLSLBase.cpp
+++ b/src/compiler/translator/OutputGLSLBase.cpp
@@ -499,6 +499,25 @@
preString = "uintBitsToFloat(";
break;
+ case EOpPackSnorm2x16:
+ preString = "packSnorm2x16(";
+ break;
+ case EOpPackUnorm2x16:
+ preString = "packUnorm2x16(";
+ break;
+ case EOpPackHalf2x16:
+ preString = "packHalf2x16(";
+ break;
+ case EOpUnpackSnorm2x16:
+ preString = "unpackSnorm2x16(";
+ break;
+ case EOpUnpackUnorm2x16:
+ preString = "unpackUnorm2x16(";
+ break;
+ case EOpUnpackHalf2x16:
+ preString = "unpackHalf2x16(";
+ break;
+
case EOpLength:
preString = "length(";
break;