From 81a50679661c2b9e4535114bb6010042dd05dc5a Mon Sep 17 00:00:00 2001 From: Paul Berry Date: Tue, 22 Oct 2013 14:54:10 -0700 Subject: glsl: Extract interpretation of interpolation to its own function. In future patches, we will need this in order to interpret interpolation qualifiers that appear inside interface blocks. Reviewed-by: Kenneth Graunke Reviewed-by: Ian Romanick Reviewed-by: Matt Turner --- src/glsl/ast_to_hir.cpp | 70 +++++++++++++++++++++++++++++-------------------- 1 file changed, 42 insertions(+), 28 deletions(-) (limited to 'src/glsl/ast_to_hir.cpp') diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 908816701b0..a98b341f586 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -1961,6 +1961,45 @@ validate_binding_qualifier(struct _mesa_glsl_parse_state *state, return true; } + +static glsl_interp_qualifier +interpret_interpolation_qualifier(const struct ast_type_qualifier *qual, + ir_variable_mode mode, + struct _mesa_glsl_parse_state *state, + YYLTYPE *loc) +{ + glsl_interp_qualifier interpolation; + if (qual->flags.q.flat) + interpolation = INTERP_QUALIFIER_FLAT; + else if (qual->flags.q.noperspective) + interpolation = INTERP_QUALIFIER_NOPERSPECTIVE; + else if (qual->flags.q.smooth) + interpolation = INTERP_QUALIFIER_SMOOTH; + else + interpolation = INTERP_QUALIFIER_NONE; + + if (interpolation != INTERP_QUALIFIER_NONE) { + if (mode != ir_var_shader_in && mode != ir_var_shader_out) { + _mesa_glsl_error(loc, state, + "interpolation qualifier `%s' can only be applied to " + "shader inputs or outputs.", + interpolation_string(interpolation)); + + } + + if ((state->target == vertex_shader && mode == ir_var_shader_in) || + (state->target == fragment_shader && mode == ir_var_shader_out)) { + _mesa_glsl_error(loc, state, + "interpolation qualifier `%s' cannot be applied to " + "vertex shader inputs or fragment shader outputs", + interpolation_string(interpolation)); + } + } + + return interpolation; +} + + static void apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual, ir_variable *var, @@ -2095,34 +2134,9 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual, } } - if (qual->flags.q.flat) - var->interpolation = INTERP_QUALIFIER_FLAT; - else if (qual->flags.q.noperspective) - var->interpolation = INTERP_QUALIFIER_NOPERSPECTIVE; - else if (qual->flags.q.smooth) - var->interpolation = INTERP_QUALIFIER_SMOOTH; - else - var->interpolation = INTERP_QUALIFIER_NONE; - - if (var->interpolation != INTERP_QUALIFIER_NONE) { - ir_variable_mode mode = (ir_variable_mode) var->mode; - - if (mode != ir_var_shader_in && mode != ir_var_shader_out) { - _mesa_glsl_error(loc, state, - "interpolation qualifier `%s' can only be applied to " - "shader inputs or outputs.", - interpolation_string(var->interpolation)); - - } - - if ((state->target == vertex_shader && mode == ir_var_shader_in) || - (state->target == fragment_shader && mode == ir_var_shader_out)) { - _mesa_glsl_error(loc, state, - "interpolation qualifier `%s' cannot be applied to " - "vertex shader inputs or fragment shader outputs", - interpolation_string(var->interpolation)); - } - } + var->interpolation = + interpret_interpolation_qualifier(qual, (ir_variable_mode) var->mode, + state, loc); var->pixel_center_integer = qual->flags.q.pixel_center_integer; var->origin_upper_left = qual->flags.q.origin_upper_left; -- cgit v1.2.3