Add-support-for-SPV_NV_mesh_shader

Test/spv.meshShaderSharedMem.mesh

@@ -0,0 +1,39 @@
+#version 450
+
+#define MAX_VER  81
+#define MAX_PRIM 32
+
+#define BARRIER() \
+    memoryBarrierShared(); \
+    barrier();
+
+#extension GL_NV_mesh_shader : enable
+
+layout(local_size_x = 32) in;
+
+layout(max_vertices=MAX_VER) out;
+layout(max_primitives=MAX_PRIM) out;
+layout(triangles) out;
+
+// test use of shared memory in mesh shaders:
+
+writeonly uniform image2D uni_image;
+uniform block0 {
+    uint    uni_value;
+};
+
+shared vec4 mem[10];
+
+void main()
+{
+    uint iid = gl_LocalInvocationID.x;
+    uint gid = gl_WorkGroupID.x;
+
+    for (uint i = 0; i < 10; ++i) {
+        mem[i] = vec4(i+uni_value);
+    }
+    imageStore(uni_image, ivec2(iid), mem[gid]);
+    imageStore(uni_image, ivec2(iid), mem[gid+1]);
+
+    BARRIER();
+}