diff options
Diffstat (limited to 'mesalib/src/glsl/glsl_parser.yy')
| -rw-r--r-- | mesalib/src/glsl/glsl_parser.yy | 38 |
1 files changed, 9 insertions, 29 deletions
diff --git a/mesalib/src/glsl/glsl_parser.yy b/mesalib/src/glsl/glsl_parser.yy index b69802ddb..2b2de3047 100644 --- a/mesalib/src/glsl/glsl_parser.yy +++ b/mesalib/src/glsl/glsl_parser.yy @@ -1559,11 +1559,6 @@ type_qualifier: if ($2.flags.q.invariant) _mesa_glsl_error(&@1, state, "duplicate \"invariant\" qualifier"); - if ($2.has_layout()) { - _mesa_glsl_error(&@1, state, - "\"invariant\" cannot be used with layout(...)"); - } - if (!state->ARB_shading_language_420pack_enable && $2.flags.q.precise) _mesa_glsl_error(&@1, state, "\"invariant\" must come after \"precise\""); @@ -1586,11 +1581,6 @@ type_qualifier: if ($2.has_interpolation()) _mesa_glsl_error(&@1, state, "duplicate interpolation qualifier"); - if ($2.has_layout()) { - _mesa_glsl_error(&@1, state, "interpolation qualifiers cannot be used " - "with layout(...)"); - } - if (!state->ARB_shading_language_420pack_enable && ($2.flags.q.precise || $2.flags.q.invariant)) { _mesa_glsl_error(&@1, state, "interpolation qualifiers must come " @@ -1602,28 +1592,18 @@ type_qualifier: } | layout_qualifier type_qualifier { - /* The GLSL 1.50 grammar indicates that a layout(...) declaration can be - * used standalone or immediately before a storage qualifier. It cannot - * be used with interpolation qualifiers or invariant. There does not - * appear to be any text indicating that it must come before the storage - * qualifier, but always seems to in examples. + /* In the absence of ARB_shading_language_420pack, layout qualifiers may + * appear no later than auxiliary storage qualifiers. There is no + * particularly clear spec language mandating this, but in all examples + * the layout qualifier precedes the storage qualifier. + * + * We allow combinations of layout with interpolation, invariant or + * precise qualifiers since these are useful in ARB_separate_shader_objects. + * There is no clear spec guidance on this either. */ if (!state->ARB_shading_language_420pack_enable && $2.has_layout()) _mesa_glsl_error(&@1, state, "duplicate layout(...) qualifiers"); - if ($2.flags.q.invariant) - _mesa_glsl_error(&@1, state, "layout(...) cannot be used with " - "the \"invariant\" qualifier"); - - if ($2.flags.q.precise) - _mesa_glsl_error(&@1, state, "layout(...) cannot be used with " - "the \"precise\" qualifier"); - - if ($2.has_interpolation()) { - _mesa_glsl_error(&@1, state, "layout(...) cannot be used with " - "interpolation qualifiers"); - } - $$ = $1; $$.merge_qualifier(&@1, state, $2); } @@ -2181,7 +2161,7 @@ condition: ; /* - * siwtch_statement grammar is based on the syntax described in the body + * switch_statement grammar is based on the syntax described in the body * of the GLSL spec, not in it's appendix!!! */ switch_statement: |