diff options
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/ast_function.cpp | 18 | ||||
| -rw-r--r-- | src/glsl/ir.h | 6 |
2 files changed, 24 insertions, 0 deletions
diff --git a/src/glsl/ast_function.cpp b/src/glsl/ast_function.cpp index cdb34cc6988..631b793c830 100644 --- a/src/glsl/ast_function.cpp +++ b/src/glsl/ast_function.cpp @@ -178,6 +178,24 @@ verify_parameter_modes(_mesa_glsl_parse_state *state, return false; } + /* Verify that shader_in parameters are shader inputs */ + if (formal->data.must_be_shader_input) { + ir_variable *var = actual->variable_referenced(); + if (var && var->data.mode != ir_var_shader_in) { + _mesa_glsl_error(&loc, state, + "parameter `%s` must be a shader input", + formal->name); + return false; + } + + if (actual->ir_type == ir_type_swizzle) { + _mesa_glsl_error(&loc, state, + "parameter `%s` must not be swizzled", + formal->name); + return false; + } + } + /* Verify that 'out' and 'inout' actual parameters are lvalues. */ if (formal->data.mode == ir_var_function_out || formal->data.mode == ir_var_function_inout) { diff --git a/src/glsl/ir.h b/src/glsl/ir.h index d5239d4de1b..fa93efd2de1 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -678,6 +678,12 @@ public: unsigned from_named_ifc_block_array:1; /** + * Non-zero if the variable must be a shader input. This is useful for + * constraints on function parameters. + */ + unsigned must_be_shader_input:1; + + /** * \brief Layout qualifier for gl_FragDepth. * * This is not equal to \c ir_depth_layout_none if and only if this |