From e3082fb2732c2af836875201b8d7f49e864c8e4e Mon Sep 17 00:00:00 2001 From: Iago Toral Quiroga Date: Thu, 26 Feb 2015 12:15:17 +0100 Subject: [PATCH] glsl: Add default precision qualifiers to the symbol table MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The GLSL ES spec specifies default precision qualifiers for certain types, so populate the symbol table with these. Notice that the desktop GLSL spec also indicates defaults for some types but this is not really useful since precision qualifiers are completely ignored in desktop GLSL. v2: simplify and add samplerExternalOES, specified by OES_EGL_image_external (Tapani) v3: add atomic_uint (reported missing by Marta) Reviewed-by: Tapani Pälli --- src/glsl/glsl_parser.yy | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy index 4ac8e45b63a..31e254a4fd3 100644 --- a/src/glsl/glsl_parser.yy +++ b/src/glsl/glsl_parser.yy @@ -313,6 +313,18 @@ translation_unit: { delete state->symbols; state->symbols = new(ralloc_parent(state)) glsl_symbol_table; + if (state->es_shader) { + if (state->stage == MESA_SHADER_FRAGMENT) { + state->symbols->add_default_precision_qualifier("int", ast_precision_medium); + } else { + state->symbols->add_default_precision_qualifier("float", ast_precision_high); + state->symbols->add_default_precision_qualifier("int", ast_precision_high); + } + state->symbols->add_default_precision_qualifier("sampler2D", ast_precision_low); + state->symbols->add_default_precision_qualifier("samplerExternalOES", ast_precision_low); + state->symbols->add_default_precision_qualifier("samplerCube", ast_precision_low); + state->symbols->add_default_precision_qualifier("atomic_uint", ast_precision_high); + } _mesa_glsl_initialize_types(state); } ; -- 2.30.2