diff options
Diffstat (limited to 'src/mesa/slang/slang_compile_struct.c')
| -rw-r--r-- | src/mesa/slang/slang_compile_struct.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/mesa/slang/slang_compile_struct.c b/src/mesa/slang/slang_compile_struct.c new file mode 100644 index 0000000000..e6c38730d7 --- /dev/null +++ b/src/mesa/slang/slang_compile_struct.c @@ -0,0 +1,174 @@ +/* + * 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; +} |