diff options
Diffstat (limited to 'src/mesa/shader/slang/slang_compile_struct.c')
| -rw-r--r-- | src/mesa/shader/slang/slang_compile_struct.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_compile_struct.c b/src/mesa/shader/slang/slang_compile_struct.c new file mode 100644 index 0000000000..15585a62af --- /dev/null +++ b/src/mesa/shader/slang/slang_compile_struct.c @@ -0,0 +1,169 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 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"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile_struct.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "imports.h" +#include "slang_compile.h" + +/* + * slang_struct_scope + */ + +GLvoid +_slang_struct_scope_ctr (slang_struct_scope *self) +{ + self->structs = NULL; + self->num_structs = 0; + self->outer_scope = NULL; +} + +void slang_struct_scope_destruct (slang_struct_scope *scope) +{ + unsigned int i; + + for (i = 0; i < scope->num_structs; i++) + slang_struct_destruct (scope->structs + i); + slang_alloc_free (scope->structs); + /* do not free scope->outer_scope */ +} + +int slang_struct_scope_copy (slang_struct_scope *x, const slang_struct_scope *y) +{ + slang_struct_scope z; + unsigned int i; + + _slang_struct_scope_ctr (&z); + z.structs = (slang_struct *) slang_alloc_malloc (y->num_structs * sizeof (slang_struct)); + if (z.structs == NULL) + { + slang_struct_scope_destruct (&z); + return 0; + } + for (z.num_structs = 0; z.num_structs < y->num_structs; z.num_structs++) + if (!slang_struct_construct (&z.structs[z.num_structs])) + { + slang_struct_scope_destruct (&z); + return 0; + } + for (i = 0; i < z.num_structs; i++) + if (!slang_struct_copy (&z.structs[i], &y->structs[i])) + { + slang_struct_scope_destruct (&z); + return 0; + } + z.outer_scope = y->outer_scope; + slang_struct_scope_destruct (x); + *x = z; + return 1; +} + +slang_struct *slang_struct_scope_find (slang_struct_scope *stru, slang_atom a_name, int all_scopes) +{ + unsigned int i; + + for (i = 0; i < stru->num_structs; i++) + if (a_name == stru->structs[i].a_name) + return &stru->structs[i]; + if (all_scopes && stru->outer_scope != NULL) + return slang_struct_scope_find (stru->outer_scope, a_name, 1); + return NULL; +} + +/* slang_struct */ + +int slang_struct_construct (slang_struct *stru) +{ + stru->a_name = SLANG_ATOM_NULL; + stru->fields = (slang_variable_scope *) slang_alloc_malloc (sizeof (slang_variable_scope)); + if (stru->fields == NULL) + return 0; + _slang_variable_scope_ctr (stru->fields); + stru->structs = (slang_struct_scope *) slang_alloc_malloc (sizeof (slang_struct_scope)); + if (stru->structs == NULL) + { + slang_variable_scope_destruct (stru->fields); + slang_alloc_free (stru->fields); + return 0; + } + _slang_struct_scope_ctr (stru->structs); + return 1; +} + +void slang_struct_destruct (slang_struct *stru) +{ + slang_variable_scope_destruct (stru->fields); + slang_alloc_free (stru->fields); + slang_struct_scope_destruct (stru->structs); + slang_alloc_free (stru->structs); +} + +int slang_struct_copy (slang_struct *x, const slang_struct *y) +{ + slang_struct z; + + if (!slang_struct_construct (&z)) + return 0; + z.a_name = y->a_name; + if (!slang_variable_scope_copy (z.fields, y->fields)) + { + slang_struct_destruct (&z); + return 0; + } + if (!slang_struct_scope_copy (z.structs, y->structs)) + { + slang_struct_destruct (&z); + return 0; + } + slang_struct_destruct (x); + *x = z; + return 1; +} + +int slang_struct_equal (const slang_struct *x, const slang_struct *y) +{ + unsigned int i; + + if (x->fields->num_variables != y->fields->num_variables) + return 0; + for (i = 0; i < x->fields->num_variables; i++) + { + slang_variable *varx = &x->fields->variables[i]; + slang_variable *vary = &y->fields->variables[i]; + + if (varx->a_name != vary->a_name) + return 0; + if (!slang_type_specifier_equal (&varx->type.specifier, &vary->type.specifier)) + return 0; + if (varx->type.specifier.type == slang_spec_array) + if (varx->array_len != vary->array_len) + return GL_FALSE; + } + return 1; +} + |