i965: remove type_size_vec4_times_4()

type_size_vec4_times_4() was introduced as a fix in 8dcf807cb4
however since 3810c1561 we can just use type_size_scalar() and
get the actual number of outputs we need.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

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

@@ -505,19 +505,6 @@ type_size_scalar(const struct glsl_type *type)
    return 0;
 }
 
-/**
- * Returns the number of scalar components needed to store type, assuming
- * that vectors are padded out to vec4.
- *
- * This has the packing rules of type_size_vec4(), but counts components
- * similar to type_size_scalar().
- */
-extern "C" int
-type_size_vec4_times_4(const struct glsl_type *type)
-{
-   return 4 * type_size_vec4(type);
-}
-
 /* Attribute arrays are loaded as one vec4 per element (or matrix column),
  * except for double-precision types, which are loaded as one dvec4.
  */

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

@@ -108,7 +108,7 @@ fs_visitor::nir_setup_single_output_varying(fs_reg *reg,
       for (unsigned count = 0; count < num_elements; count += 4) {
          this->outputs[*location] = *reg;
          this->output_components[*location] = MIN2(4, num_elements - count);
-         *reg = offset(*reg, bld, 4);
+         *reg = offset(*reg, bld, this->output_components[*location]);
          (*location)++;
       }
    }

src/mesa/drivers/dri/i965/brw_nir.c

@@ -292,8 +292,8 @@ brw_nir_lower_vue_outputs(nir_shader *nir,
 {
    if (is_scalar) {
       nir_assign_var_locations(&nir->outputs, &nir->num_outputs,
-                               type_size_vec4_times_4);
-      nir_lower_io(nir, nir_var_shader_out, type_size_vec4_times_4);
+                               type_size_scalar);
+      nir_lower_io(nir, nir_var_shader_out, type_size_scalar);
    } else {
       nir_foreach_variable(var, &nir->outputs)
          var->data.driver_location = var->data.location;

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

@@ -294,7 +294,6 @@ struct gl_shader *brw_new_shader(struct gl_context *ctx, GLuint name, GLuint typ
 int type_size_scalar(const struct glsl_type *type);
 int type_size_vec4(const struct glsl_type *type);
 int type_size_dvec4(const struct glsl_type *type);
-int type_size_vec4_times_4(const struct glsl_type *type);
 int type_size_vs_input(const struct glsl_type *type);
 
 unsigned tesslevel_outer_components(GLenum tes_primitive_mode);