From 733f1b2a55aa396dd01ec516f93339d95ef32a42 Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Wed, 24 Feb 2016 16:06:00 +1100 Subject: glsl: add xfb_* qualifiers to glsl_struct_field These will be used to hold qualifier values for interface and struct members. Support is added to the struct/interface constructors to copy these fields upon creation. We also update record_compare() to ensure we don't reuse a glsl_type with the wrong xfb_* qualifier values. Reviewed-by: Dave Airlie --- src/compiler/glsl/builtin_variables.cpp | 2 ++ src/compiler/glsl_types.cpp | 10 ++++++++++ src/compiler/glsl_types.h | 16 ++++++++++++++-- 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/src/compiler/glsl/builtin_variables.cpp b/src/compiler/glsl/builtin_variables.cpp index c39ae507b6..24e0b1a366 100644 --- a/src/compiler/glsl/builtin_variables.cpp +++ b/src/compiler/glsl/builtin_variables.cpp @@ -334,6 +334,8 @@ per_vertex_accumulator::add_field(int slot, const glsl_type *type, this->fields[this->num_fields].image_coherent = 0; this->fields[this->num_fields].image_volatile = 0; this->fields[this->num_fields].image_restrict = 0; + this->fields[this->num_fields].xfb_buffer = -1; + this->fields[this->num_fields].xfb_stride = -1; this->num_fields++; } diff --git a/src/compiler/glsl_types.cpp b/src/compiler/glsl_types.cpp index 2421bd6195..3b77b5e690 100644 --- a/src/compiler/glsl_types.cpp +++ b/src/compiler/glsl_types.cpp @@ -132,6 +132,8 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields, this->fields.structure[i].image_volatile = fields[i].image_volatile; this->fields.structure[i].image_restrict = fields[i].image_restrict; this->fields.structure[i].precision = fields[i].precision; + this->fields.structure[i].xfb_buffer = fields[i].xfb_buffer; + this->fields.structure[i].xfb_stride = fields[i].xfb_stride; } mtx_unlock(&glsl_type::mutex); @@ -172,6 +174,8 @@ glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields, this->fields.structure[i].image_volatile = fields[i].image_volatile; this->fields.structure[i].image_restrict = fields[i].image_restrict; this->fields.structure[i].precision = fields[i].precision; + this->fields.structure[i].xfb_buffer = fields[i].xfb_buffer; + this->fields.structure[i].xfb_stride = fields[i].xfb_stride; } mtx_unlock(&glsl_type::mutex); @@ -915,6 +919,12 @@ glsl_type::record_compare(const glsl_type *b) const if (this->fields.structure[i].precision != b->fields.structure[i].precision) return false; + if (this->fields.structure[i].xfb_buffer + != b->fields.structure[i].xfb_buffer) + return false; + if (this->fields.structure[i].xfb_stride + != b->fields.structure[i].xfb_stride) + return false; } return true; diff --git a/src/compiler/glsl_types.h b/src/compiler/glsl_types.h index b0e6f3f730..9b5f8b1290 100644 --- a/src/compiler/glsl_types.h +++ b/src/compiler/glsl_types.h @@ -839,12 +839,24 @@ struct glsl_struct_field { /** * For interface blocks, members may have an explicit byte offset - * specified; -1 otherwise. + * specified; -1 otherwise. Also used for xfb_offset layout qualifier. * - * Ignored for structs. + * Unless used for xfb_offset this field is ignored for structs. */ int offset; + /** + * For interface blocks, members may define a transform feedback buffer; + * -1 otherwise. + */ + int xfb_buffer; + + /** + * For interface blocks, members may define a transform feedback stride; + * -1 otherwise. + */ + int xfb_stride; + /** * For interface blocks, the interpolation mode (as in * ir_variable::interpolation). 0 otherwise. -- cgit v1.2.3