diff --git a/src/bgfx_compute.sh b/src/bgfx_compute.sh
index 31395c0b..575678ef 100644
--- a/src/bgfx_compute.sh
+++ b/src/bgfx_compute.sh
@@ -6,10 +6,17 @@
 #ifndef BGFX_COMPUTE_H_HEADER_GUARD
 #define BGFX_COMPUTE_H_HEADER_GUARD
 
+#include "bgfx_shader.sh"
+
 #ifndef __cplusplus
 
 #if BGFX_SHADER_LANGUAGE_HLSL
 
+float uintBitsToFloat(uint _x)  { return asfloat(_x); }
+uint  floatBitsToUint(float _x) { return asuint(_x);  }
+
+#define SHARED groupshared
+
 #define IMAGE2D_RO(_name, _reg) Texture2D           _name : register(t[_reg])
 #define IMAGE2D_RW(_name, _reg) RWTexture2D<float4> _name : register(u[_reg])
 #define IMAGE2D_WR(_name, _reg) IMAGE2D_RW(_name, _reg)
@@ -95,6 +102,8 @@ uint atomicCompSwap(uint _mem, uint _compare, uint _data)
 
 #else
 
+#define SHARED shared
+
 #define __IMAGE2D_XX(_name, _reg, _access) \
 			layout(rgba8, binding=_reg) _access uniform highp image2D _name