From d3ea221d3ea12d4d42049db22fa9502d57c55070 Mon Sep 17 00:00:00 2001 From: Michal Krol Date: Wed, 13 Apr 2005 13:18:35 +0000 Subject: add __fixed_input and __fixed_output qualifier support; fix for_init_statement output; --- src/mesa/shader/slang/library/slang_shader.syn | 21 +++++++++++++++------ src/mesa/shader/slang/library/slang_shader_syn.h | 10 +++++++--- 2 files changed, 22 insertions(+), 9 deletions(-) (limited to 'src/mesa/shader/slang/library') diff --git a/src/mesa/shader/slang/library/slang_shader.syn b/src/mesa/shader/slang/library/slang_shader.syn index 4aa0339cc7..65d7fe3532 100644 --- a/src/mesa/shader/slang/library/slang_shader.syn +++ b/src/mesa/shader/slang/library/slang_shader.syn @@ -2,7 +2,7 @@ * Mesa 3-D graphics library * Version: 6.2 * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * Copyright (C) 2004-2005 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -24,7 +24,7 @@ /* * \file slang_shader.syn - * slang shader syntax + * slang vertex/fragment shader syntax * \author Michal Krol */ @@ -49,7 +49,7 @@ .syntax translation_unit; /* revision number - increment after each change affecting emitted output */ -.emtcode REVISION 1 +.emtcode REVISION 2 /* external declaration */ .emtcode EXTERNAL_NULL 0 @@ -116,6 +116,8 @@ .emtcode TYPE_QUALIFIER_ATTRIBUTE 2 .emtcode TYPE_QUALIFIER_VARYING 3 .emtcode TYPE_QUALIFIER_UNIFORM 4 +.emtcode TYPE_QUALIFIER_FIXEDOUTPUT 5 +.emtcode TYPE_QUALIFIER_FIXEDINPUT 6 /* type specifier */ .emtcode TYPE_SPECIFIER_VOID 0 @@ -237,7 +239,7 @@ /* the implementation will set it to 1 when compiling internal built-in shaders */ .regbyte parsing_builtin 0 -/* holds the type of shader that is being parsed, possible values are listed below */ +/* holds the type of the shader being parsed; possible values are listed below */ /* FRAGMENT_SHADER 1 */ /* VERTEX_SHADER 2 */ /* shader type is set by the caller before parsing */ @@ -846,12 +848,19 @@ fully_specified_type_2 | "attribute" // Vertex only. | "varying" | "uniform" + | "__fixed_output" + | "__fixed_input" + +note: this is an extension to the standard language specification - normally slang disallows + __fixed_output and __fixed_input type qualifiers */ type_qualifier "const" .emit TYPE_QUALIFIER_CONST .or .if (shader_type == 2) "attribute" .emit TYPE_QUALIFIER_ATTRIBUTE .or "varying" .emit TYPE_QUALIFIER_VARYING .or - "uniform" .emit TYPE_QUALIFIER_UNIFORM; + "uniform" .emit TYPE_QUALIFIER_UNIFORM .or + .if (parsing_builtin != 0) "__fixed_output" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or + .if (parsing_builtin != 0) "__fixed_input" .emit TYPE_QUALIFIER_FIXEDINPUT; /* ::= "void" @@ -1110,7 +1119,7 @@ iteration_statement_3 | */ for_init_statement - expression_statement .or declaration_statement; + expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE; /* ::= diff --git a/src/mesa/shader/slang/library/slang_shader_syn.h b/src/mesa/shader/slang/library/slang_shader_syn.h index d3415cffa7..dece1e95fe 100644 --- a/src/mesa/shader/slang/library/slang_shader_syn.h +++ b/src/mesa/shader/slang/library/slang_shader_syn.h @@ -1,5 +1,5 @@ ".syntax translation_unit;\n" -".emtcode REVISION 1\n" +".emtcode REVISION 2\n" ".emtcode EXTERNAL_NULL 0\n" ".emtcode EXTERNAL_FUNCTION_DEFINITION 1\n" ".emtcode EXTERNAL_DECLARATION 2\n" @@ -39,6 +39,8 @@ ".emtcode TYPE_QUALIFIER_ATTRIBUTE 2\n" ".emtcode TYPE_QUALIFIER_VARYING 3\n" ".emtcode TYPE_QUALIFIER_UNIFORM 4\n" +".emtcode TYPE_QUALIFIER_FIXEDOUTPUT 5\n" +".emtcode TYPE_QUALIFIER_FIXEDINPUT 6\n" ".emtcode TYPE_SPECIFIER_VOID 0\n" ".emtcode TYPE_SPECIFIER_BOOL 1\n" ".emtcode TYPE_SPECIFIER_BVEC2 2\n" @@ -406,7 +408,9 @@ " \"const\" .emit TYPE_QUALIFIER_CONST .or\n" " .if (shader_type == 2) \"attribute\" .emit TYPE_QUALIFIER_ATTRIBUTE .or\n" " \"varying\" .emit TYPE_QUALIFIER_VARYING .or\n" -" \"uniform\" .emit TYPE_QUALIFIER_UNIFORM;\n" +" \"uniform\" .emit TYPE_QUALIFIER_UNIFORM .or\n" +" .if (parsing_builtin != 0) \"__fixed_output\" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or\n" +" .if (parsing_builtin != 0) \"__fixed_input\" .emit TYPE_QUALIFIER_FIXEDINPUT;\n" "type_specifier_space\n" " \"void\" .emit TYPE_SPECIFIER_VOID .or\n" " \"float\" .emit TYPE_SPECIFIER_FLOAT .or\n" @@ -536,7 +540,7 @@ " \"for\" .emit OP_FOR .and lparen .error LPAREN_EXPECTED .and for_init_statement .and\n" " for_rest_statement .and rparen .error RPAREN_EXPECTED .and statement_no_new_scope;\n" "for_init_statement\n" -" expression_statement .or declaration_statement;\n" +" expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE;\n" "conditionopt\n" " condition .or\n" " .true .emit OP_EXPRESSION .emit OP_PUSH_BOOL .emit 2 .emit '1' .emit '\\0' .emit OP_END;\n" -- cgit v1.2.3