From 9e23b44bfe1e6e85231b1c07d945cadf0c868648 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 16 Oct 2013 11:23:27 +0200 Subject: fontconfig libxcb libxcb/xcb-proto xserver mesa pixman xkbcomp git update 16 oct 2013 xserver commit 7cf1b595c8c8f9776a39559d2878cf90af3f2859 libxcb commit e4e0c6eec861f4c69da12060dc8dbe7a63fa5eb6 libxcb/xcb-proto commit 55c75accecf0e76d2aa38656efd2be4044b9e643 xkbcomp commit 839ccda42d8b088d94324cd77c4be954859914d3 pixman commit 9e81419ed5c0ee490ddacf7bada516a25cae87eb fontconfig commit 5406919c5e186f74ccdade1a65344ce7b5c56a64 mesa commit 6e444a72c1f9e4446e025b8cb780523cb89f0584 --- mesalib/src/glsl/linker.cpp | 167 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 160 insertions(+), 7 deletions(-) (limited to 'mesalib/src/glsl/linker.cpp') diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp index c54b7049b..9095a4015 100644 --- a/mesalib/src/glsl/linker.cpp +++ b/mesalib/src/glsl/linker.cpp @@ -1033,17 +1033,167 @@ get_main_function_signature(gl_shader *sh) */ class array_sizing_visitor : public ir_hierarchical_visitor { public: + array_sizing_visitor() + : mem_ctx(ralloc_context(NULL)), + unnamed_interfaces(hash_table_ctor(0, hash_table_pointer_hash, + hash_table_pointer_compare)) + { + } + + ~array_sizing_visitor() + { + hash_table_dtor(this->unnamed_interfaces); + ralloc_free(this->mem_ctx); + } + virtual ir_visitor_status visit(ir_variable *var) { - if (var->type->is_array() && (var->type->length == 0)) { - const glsl_type *type = - glsl_type::get_array_instance(var->type->fields.array, - var->max_array_access + 1); - assert(type != NULL); - var->type = type; + fixup_type(&var->type, var->max_array_access); + if (var->type->is_interface()) { + if (interface_contains_unsized_arrays(var->type)) { + const glsl_type *new_type = + resize_interface_members(var->type, var->max_ifc_array_access); + var->type = new_type; + var->change_interface_type(new_type); + } + } else if (var->type->is_array() && + var->type->fields.array->is_interface()) { + if (interface_contains_unsized_arrays(var->type->fields.array)) { + const glsl_type *new_type = + resize_interface_members(var->type->fields.array, + var->max_ifc_array_access); + var->change_interface_type(new_type); + var->type = + glsl_type::get_array_instance(new_type, var->type->length); + } + } else if (const glsl_type *ifc_type = var->get_interface_type()) { + /* Store a pointer to the variable in the unnamed_interfaces + * hashtable. + */ + ir_variable **interface_vars = (ir_variable **) + hash_table_find(this->unnamed_interfaces, ifc_type); + if (interface_vars == NULL) { + interface_vars = rzalloc_array(mem_ctx, ir_variable *, + ifc_type->length); + hash_table_insert(this->unnamed_interfaces, interface_vars, + ifc_type); + } + unsigned index = ifc_type->field_index(var->name); + assert(index < ifc_type->length); + assert(interface_vars[index] == NULL); + interface_vars[index] = var; } return visit_continue; } + + /** + * For each unnamed interface block that was discovered while running the + * visitor, adjust the interface type to reflect the newly assigned array + * sizes, and fix up the ir_variable nodes to point to the new interface + * type. + */ + void fixup_unnamed_interface_types() + { + hash_table_call_foreach(this->unnamed_interfaces, + fixup_unnamed_interface_type, NULL); + } + +private: + /** + * If the type pointed to by \c type represents an unsized array, replace + * it with a sized array whose size is determined by max_array_access. + */ + static void fixup_type(const glsl_type **type, unsigned max_array_access) + { + if ((*type)->is_array() && (*type)->length == 0) { + *type = glsl_type::get_array_instance((*type)->fields.array, + max_array_access + 1); + assert(*type != NULL); + } + } + + /** + * Determine whether the given interface type contains unsized arrays (if + * it doesn't, array_sizing_visitor doesn't need to process it). + */ + static bool interface_contains_unsized_arrays(const glsl_type *type) + { + for (unsigned i = 0; i < type->length; i++) { + const glsl_type *elem_type = type->fields.structure[i].type; + if (elem_type->is_array() && elem_type->length == 0) + return true; + } + return false; + } + + /** + * Create a new interface type based on the given type, with unsized arrays + * replaced by sized arrays whose size is determined by + * max_ifc_array_access. + */ + static const glsl_type * + resize_interface_members(const glsl_type *type, + const unsigned *max_ifc_array_access) + { + unsigned num_fields = type->length; + glsl_struct_field *fields = new glsl_struct_field[num_fields]; + memcpy(fields, type->fields.structure, + num_fields * sizeof(*fields)); + for (unsigned i = 0; i < num_fields; i++) { + fixup_type(&fields[i].type, max_ifc_array_access[i]); + } + glsl_interface_packing packing = + (glsl_interface_packing) type->interface_packing; + const glsl_type *new_ifc_type = + glsl_type::get_interface_instance(fields, num_fields, + packing, type->name); + delete [] fields; + return new_ifc_type; + } + + static void fixup_unnamed_interface_type(const void *key, void *data, + void *) + { + const glsl_type *ifc_type = (const glsl_type *) key; + ir_variable **interface_vars = (ir_variable **) data; + unsigned num_fields = ifc_type->length; + glsl_struct_field *fields = new glsl_struct_field[num_fields]; + memcpy(fields, ifc_type->fields.structure, + num_fields * sizeof(*fields)); + bool interface_type_changed = false; + for (unsigned i = 0; i < num_fields; i++) { + if (interface_vars[i] != NULL && + fields[i].type != interface_vars[i]->type) { + fields[i].type = interface_vars[i]->type; + interface_type_changed = true; + } + } + if (!interface_type_changed) { + delete [] fields; + return; + } + glsl_interface_packing packing = + (glsl_interface_packing) ifc_type->interface_packing; + const glsl_type *new_ifc_type = + glsl_type::get_interface_instance(fields, num_fields, packing, + ifc_type->name); + delete [] fields; + for (unsigned i = 0; i < num_fields; i++) { + if (interface_vars[i] != NULL) + interface_vars[i]->change_interface_type(new_ifc_type); + } + } + + /** + * Memory context used to allocate the data in \c unnamed_interfaces. + */ + void *mem_ctx; + + /** + * Hash table from const glsl_type * to an array of ir_variable *'s + * pointing to the ir_variables constituting each unnamed interface block. + */ + hash_table *unnamed_interfaces; }; /** @@ -1318,6 +1468,7 @@ link_intrastage_shaders(void *mem_ctx, */ array_sizing_visitor v; v.run(linked->ir); + v.fixup_unnamed_interface_types(); return linked; } @@ -2203,7 +2354,9 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog) ; /* This must be done after all dead varyings are eliminated. */ - if (!check_against_varying_limit(ctx, prog, sh_next)) + if (!check_against_output_limit(ctx, prog, sh_i)) + goto done; + if (!check_against_input_limit(ctx, prog, sh_next)) goto done; next = i; -- cgit v1.2.3