On 07/29/2015 07:01 AM, Samuel Iglesias Gonsalvez wrote:
> From: Iago Toral Quiroga <ito...@igalia.com>
>
> 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.
> ---
> src/glsl/glsl_parser.yy | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
> index e66b80a..f55fd23 100644
> --- a/src/glsl/glsl_parser.yy
> +++ b/src/glsl/glsl_parser.yy
> @@ -310,6 +310,20 @@ 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);
> + state->symbols->add_default_precision_qualifier("sampler2D",
> ast_precision_low);
> + state->symbols->add_default_precision_qualifier("samplerCube",
> ast_precision_low);
> +
> state->symbols->add_default_precision_qualifier("samplerExternalOES",
> ast_precision_low);
> + } 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("samplerCube",
> ast_precision_low);
> +
> state->symbols->add_default_precision_qualifier("samplerExternalOES",
> ast_precision_low);
> + }
What about sampler types added in ES 3.0 or by extensions (e.g., sampler3D)?
> + }
> _mesa_glsl_initialize_types(state);
> }
> ;
>
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