| /* |
| * Mesa 3-D graphics library |
| * Version: 6.5.3 |
| * |
| * Copyright (C) 2005-2007 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 "main/imports.h" |
| #include "slang_mem.h" |
| #include "slang_compile.h" |
| |
| |
| 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) |
| { |
| GLuint i; |
| |
| for (i = 0; i < scope->num_structs; i++) |
| slang_struct_destruct(scope->structs + i); |
| _slang_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; |
| GLuint i; |
| |
| _slang_struct_scope_ctr(&z); |
| z.structs = (slang_struct *) |
| _slang_alloc(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) |
| { |
| GLuint 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(sizeof(slang_variable_scope)); |
| if (stru->fields == NULL) |
| return 0; |
| _slang_variable_scope_ctr(stru->fields); |
| |
| stru->structs = |
| (slang_struct_scope *) _slang_alloc(sizeof(slang_struct_scope)); |
| if (stru->structs == NULL) { |
| slang_variable_scope_destruct(stru->fields); |
| _slang_free(stru->fields); |
| return 0; |
| } |
| _slang_struct_scope_ctr(stru->structs); |
| stru->constructor = NULL; |
| return 1; |
| } |
| |
| void |
| slang_struct_destruct(slang_struct * stru) |
| { |
| slang_variable_scope_destruct(stru->fields); |
| _slang_free(stru->fields); |
| slang_struct_scope_destruct(stru->structs); |
| _slang_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) |
| { |
| GLuint i; |
| |
| if (x->fields->num_variables != y->fields->num_variables) |
| return 0; |
| |
| for (i = 0; i < x->fields->num_variables; i++) { |
| const slang_variable *varx = x->fields->variables[i]; |
| const 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; |
| } |