i965: Make a few tessellation related functions non-static.

Also, move them to brw_shader.cpp so they're in a location for code
used by both the vec4 and fs worlds.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>

src/mesa/drivers/dri/i965/brw_shader.cpp

@@ -582,6 +582,53 @@ brw_abs_immediate(enum brw_reg_type type, struct brw_reg *reg)
    return false;
 }
 
+unsigned
+tesslevel_outer_components(GLenum tes_primitive_mode)
+{
+   switch (tes_primitive_mode) {
+   case GL_QUADS:
+      return 4;
+   case GL_TRIANGLES:
+      return 3;
+   case GL_ISOLINES:
+      return 2;
+   default:
+      unreachable("Bogus tessellation domain");
+   }
+   return 0;
+}
+
+unsigned
+tesslevel_inner_components(GLenum tes_primitive_mode)
+{
+   switch (tes_primitive_mode) {
+   case GL_QUADS:
+      return 2;
+   case GL_TRIANGLES:
+      return 1;
+   case GL_ISOLINES:
+      return 0;
+   default:
+      unreachable("Bogus tessellation domain");
+   }
+   return 0;
+}
+
+/**
+ * Given a normal .xyzw writemask, convert it to a writemask for a vector
+ * that's stored backwards, i.e. .wzyx.
+ */
+unsigned
+writemask_for_backwards_vector(unsigned mask)
+{
+   unsigned new_mask = 0;
+
+   for (int i = 0; i < 4; i++)
+      new_mask |= ((mask >> i) & 1) << (3 - i);
+
+   return new_mask;
+}
+
 backend_shader::backend_shader(const struct brw_compiler *compiler,
                                void *log_data,
                                void *mem_ctx,

src/mesa/drivers/dri/i965/brw_shader.h

@@ -292,6 +292,10 @@ int type_size_scalar(const struct glsl_type *type);
 int type_size_vec4(const struct glsl_type *type);
 int type_size_vec4_times_4(const struct glsl_type *type);
 
+unsigned tesslevel_outer_components(GLenum tes_primitive_mode);
+unsigned tesslevel_inner_components(GLenum tes_primitive_mode);
+unsigned writemask_for_backwards_vector(unsigned mask);
+
 #ifdef __cplusplus
 }
 #endif

src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp

@@ -286,53 +286,6 @@ vec4_tcs_visitor::emit_urb_write(const src_reg &value,
    inst->base_mrf = -1;
 }
 
-static unsigned
-tesslevel_outer_components(GLenum tes_primitive_mode)
-{
-   switch (tes_primitive_mode) {
-   case GL_QUADS:
-      return 4;
-   case GL_TRIANGLES:
-      return 3;
-   case GL_ISOLINES:
-      return 2;
-   default:
-      unreachable("Bogus tessellation domain");
-   }
-   return 0;
-}
-
-static unsigned
-tesslevel_inner_components(GLenum tes_primitive_mode)
-{
-   switch (tes_primitive_mode) {
-   case GL_QUADS:
-      return 2;
-   case GL_TRIANGLES:
-      return 1;
-   case GL_ISOLINES:
-      return 0;
-   default:
-      unreachable("Bogus tessellation domain");
-   }
-   return 0;
-}
-
-/**
- * Given a normal .xyzw writemask, convert it to a writemask for a vector
- * that's stored backwards, i.e. .wzyx.
- */
-static unsigned
-writemask_for_backwards_vector(unsigned mask)
-{
-   unsigned new_mask = 0;
-
-   for (int i = 0; i < 4; i++)
-      new_mask |= ((mask >> i) & 1) << (3 - i);
-
-   return new_mask;
-}
-
 void
 vec4_tcs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
 {