diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/shader/slang/slang_storage.c')
| -rwxr-xr-x | nx-X11/extras/Mesa/src/mesa/shader/slang/slang_storage.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/shader/slang/slang_storage.c b/nx-X11/extras/Mesa/src/mesa/shader/slang/slang_storage.c new file mode 100755 index 000000000..3b2fda415 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/shader/slang/slang_storage.c @@ -0,0 +1,255 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 2005 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_storage.c + * slang variable storage + * \author Michal Krol + */ + +#include "imports.h" +#include "slang_utility.h" +#include "slang_storage.h" +#include "slang_assemble.h" + +/* slang_storage_array */ + +void slang_storage_array_construct (slang_storage_array *arr) +{ + arr->type = slang_stor_aggregate; + arr->aggregate = NULL; + arr->length = 0; +} + +void slang_storage_array_destruct (slang_storage_array *arr) +{ + if (arr->aggregate != NULL) + { + slang_storage_aggregate_destruct (arr->aggregate); + slang_alloc_free (arr->aggregate); + } +} + +/* slang_storage_aggregate */ + +void slang_storage_aggregate_construct (slang_storage_aggregate *agg) +{ + agg->arrays = NULL; + agg->count = 0; +} + +void slang_storage_aggregate_destruct (slang_storage_aggregate *agg) +{ + unsigned int i; + for (i = 0; i < agg->count; i++) + slang_storage_array_destruct (agg->arrays + i); + slang_alloc_free (agg->arrays); +} + +static slang_storage_array *slang_storage_aggregate_push_new (slang_storage_aggregate *agg) +{ + slang_storage_array *arr = NULL; + agg->arrays = (slang_storage_array *) slang_alloc_realloc (agg->arrays, agg->count * sizeof ( + slang_storage_array), (agg->count + 1) * sizeof (slang_storage_array)); + if (agg->arrays != NULL) + { + arr = agg->arrays + agg->count; + slang_storage_array_construct (arr); + agg->count++; + } + return arr; +} + +/* _slang_aggregate_variable() */ + +static int aggregate_vector (slang_storage_aggregate *agg, slang_storage_type basic_type, + unsigned int row_count) +{ + slang_storage_array *arr = slang_storage_aggregate_push_new (agg); + if (arr == NULL) + return 0; + arr->type = basic_type; + arr->length = row_count; + return 1; +} + +static int aggregate_matrix (slang_storage_aggregate *agg, slang_storage_type basic_type, + unsigned int dimension) +{ + slang_storage_array *arr = slang_storage_aggregate_push_new (agg); + if (arr == NULL) + return 0; + arr->type = slang_stor_aggregate; + arr->length = dimension; + arr->aggregate = (slang_storage_aggregate *) slang_alloc_malloc (sizeof ( + slang_storage_aggregate)); + if (arr->aggregate == NULL) + return 0; + slang_storage_aggregate_construct (arr->aggregate); + if (!aggregate_vector (arr->aggregate, basic_type, dimension)) + return 0; + return 1; +} + +static int aggregate_variables (slang_storage_aggregate *agg, const slang_variable_scope *vars, + slang_function_scope *funcs, slang_struct_scope *structs) +{ + unsigned int i; + for (i = 0; i < vars->num_variables; i++) + if (!_slang_aggregate_variable (agg, &vars->variables[i].type.specifier, + vars->variables[i].array_size, funcs, structs)) + return 0; + return 1; +} + +int _slang_aggregate_variable (slang_storage_aggregate *agg, slang_type_specifier *spec, + slang_operation *array_size, slang_function_scope *funcs, slang_struct_scope *structs) +{ + switch (spec->type) + { + case slang_spec_bool: + return aggregate_vector (agg, slang_stor_bool, 1); + case slang_spec_bvec2: + return aggregate_vector (agg, slang_stor_bool, 2); + case slang_spec_bvec3: + return aggregate_vector (agg, slang_stor_bool, 3); + case slang_spec_bvec4: + return aggregate_vector (agg, slang_stor_bool, 4); + case slang_spec_int: + return aggregate_vector (agg, slang_stor_int, 1); + case slang_spec_ivec2: + return aggregate_vector (agg, slang_stor_int, 2); + case slang_spec_ivec3: + return aggregate_vector (agg, slang_stor_int, 3); + case slang_spec_ivec4: + return aggregate_vector (agg, slang_stor_int, 4); + case slang_spec_float: + return aggregate_vector (agg, slang_stor_float, 1); + case slang_spec_vec2: + return aggregate_vector (agg, slang_stor_float, 2); + case slang_spec_vec3: + return aggregate_vector (agg, slang_stor_float, 3); + case slang_spec_vec4: + return aggregate_vector (agg, slang_stor_float, 4); + case slang_spec_mat2: + return aggregate_matrix (agg, slang_stor_float, 2); + case slang_spec_mat3: + return aggregate_matrix (agg, slang_stor_float, 3); + case slang_spec_mat4: + return aggregate_matrix (agg, slang_stor_float, 4); + case slang_spec_sampler1D: + case slang_spec_sampler2D: + case slang_spec_sampler3D: + case slang_spec_samplerCube: + case slang_spec_sampler1DShadow: + case slang_spec_sampler2DShadow: + return aggregate_vector (agg, slang_stor_int, 1); + case slang_spec_struct: + return aggregate_variables (agg, spec->_struct->fields, funcs, structs); + case slang_spec_array: + { + slang_storage_array *arr; + slang_assembly_file file; + slang_assembly_flow_control flow; + slang_assembly_name_space space; + slang_assembly_local_info info; + slang_assembly_stack_info stk; + + arr = slang_storage_aggregate_push_new (agg); + if (arr == NULL) + return 0; + arr->type = slang_stor_aggregate; + arr->aggregate = (slang_storage_aggregate *) slang_alloc_malloc (sizeof ( + slang_storage_aggregate)); + if (arr->aggregate == NULL) + return 0; + slang_storage_aggregate_construct (arr->aggregate); + if (!_slang_aggregate_variable (arr->aggregate, spec->_array, NULL, funcs, structs)) + return 0; + slang_assembly_file_construct (&file); + space.funcs = funcs; + space.structs = structs; + /* XXX: vars! */ + space.vars = NULL; + if (!_slang_assemble_operation (&file, array_size, 0, &flow, &space, &info, &stk)) + { + slang_assembly_file_destruct (&file); + return 0; + } + /* TODO: evaluate array size */ + slang_assembly_file_destruct (&file); + arr->length = 256; + } + return 1; + default: + return 0; + } +} + +/* _slang_sizeof_aggregate() */ + +unsigned int _slang_sizeof_aggregate (const slang_storage_aggregate *agg) +{ + unsigned int i, size = 0; + for (i = 0; i < agg->count; i++) + { + unsigned int element_size; + if (agg->arrays[i].type == slang_stor_aggregate) + element_size = _slang_sizeof_aggregate (agg->arrays[i].aggregate); + else + element_size = sizeof (GLfloat); + size += element_size * agg->arrays[i].length; + } + return size; +} + +/* _slang_flatten_aggregate () */ + +int _slang_flatten_aggregate (slang_storage_aggregate *flat, const slang_storage_aggregate *agg) +{ + unsigned int i; + for (i = 0; i < agg->count; i++) + { + unsigned int j; + for (j = 0; j < agg->arrays[i].length; j++) + { + if (agg->arrays[i].type == slang_stor_aggregate) + { + if (!_slang_flatten_aggregate (flat, agg->arrays[i].aggregate)) + return 0; + } + else + { + slang_storage_array *arr; + arr = slang_storage_aggregate_push_new (flat); + if (arr == NULL) + return 0; + arr->type = agg->arrays[i].type; + arr->length = 1; + } + } + } + return 1; +} + |