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author | marha <marha@users.sourceforge.net> | 2011-02-01 10:46:14 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-02-01 10:46:14 +0000 |
commit | d4a8565009962e162d86a9c4ae24062a3fa12025 (patch) | |
tree | bcd249c3c523b23a6350b1d6b5a2cff7518cdb0e /mesalib/src/glsl/glsl_types.cpp | |
parent | 6751d9898be671d253d6f7b0806cd4b10daaaf85 (diff) | |
parent | 0bf07d32cbd460220c67d726900772cf3692746d (diff) | |
download | vcxsrv-d4a8565009962e162d86a9c4ae24062a3fa12025.tar.gz vcxsrv-d4a8565009962e162d86a9c4ae24062a3fa12025.tar.bz2 vcxsrv-d4a8565009962e162d86a9c4ae24062a3fa12025.zip |
svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/glsl/glsl_types.cpp')
-rw-r--r-- | mesalib/src/glsl/glsl_types.cpp | 994 |
1 files changed, 497 insertions, 497 deletions
diff --git a/mesalib/src/glsl/glsl_types.cpp b/mesalib/src/glsl/glsl_types.cpp index 899e9c302..f4d9242b2 100644 --- a/mesalib/src/glsl/glsl_types.cpp +++ b/mesalib/src/glsl/glsl_types.cpp @@ -1,497 +1,497 @@ -/*
- * Copyright © 2009 Intel Corporation
- *
- * 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 (including the next
- * paragraph) 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- */
-
-#include <cstdio>
-#include <stdlib.h>
-#include "main/core.h" /* for Elements */
-#include "glsl_symbol_table.h"
-#include "glsl_parser_extras.h"
-#include "glsl_types.h"
-#include "builtin_types.h"
-extern "C" {
-#include "program/hash_table.h"
-}
-
-hash_table *glsl_type::array_types = NULL;
-hash_table *glsl_type::record_types = NULL;
-void *glsl_type::mem_ctx = NULL;
-
-void
-glsl_type::init_talloc_type_ctx(void)
-{
- if (glsl_type::mem_ctx == NULL) {
- glsl_type::mem_ctx = talloc_autofree_context();
- assert(glsl_type::mem_ctx != NULL);
- }
-}
-
-glsl_type::glsl_type(GLenum gl_type,
- glsl_base_type base_type, unsigned vector_elements,
- unsigned matrix_columns, const char *name) :
- gl_type(gl_type),
- base_type(base_type),
- sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
- sampler_type(0),
- vector_elements(vector_elements), matrix_columns(matrix_columns),
- length(0)
-{
- init_talloc_type_ctx();
- this->name = talloc_strdup(this->mem_ctx, name);
- /* Neither dimension is zero or both dimensions are zero.
- */
- assert((vector_elements == 0) == (matrix_columns == 0));
- memset(& fields, 0, sizeof(fields));
-}
-
-glsl_type::glsl_type(GLenum gl_type,
- enum glsl_sampler_dim dim, bool shadow, bool array,
- unsigned type, const char *name) :
- gl_type(gl_type),
- base_type(GLSL_TYPE_SAMPLER),
- sampler_dimensionality(dim), sampler_shadow(shadow),
- sampler_array(array), sampler_type(type),
- vector_elements(0), matrix_columns(0),
- length(0)
-{
- init_talloc_type_ctx();
- this->name = talloc_strdup(this->mem_ctx, name);
- memset(& fields, 0, sizeof(fields));
-}
-
-glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
- const char *name) :
- base_type(GLSL_TYPE_STRUCT),
- sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
- sampler_type(0),
- vector_elements(0), matrix_columns(0),
- length(num_fields)
-{
- unsigned int i;
-
- init_talloc_type_ctx();
- this->name = talloc_strdup(this->mem_ctx, name);
- this->fields.structure = talloc_array(this->mem_ctx,
- glsl_struct_field, length);
- for (i = 0; i < length; i++) {
- this->fields.structure[i].type = fields[i].type;
- this->fields.structure[i].name = talloc_strdup(this->fields.structure,
- fields[i].name);
- }
-}
-
-static void
-add_types_to_symbol_table(glsl_symbol_table *symtab,
- const struct glsl_type *types,
- unsigned num_types, bool warn)
-{
- (void) warn;
-
- for (unsigned i = 0; i < num_types; i++) {
- symtab->add_type(types[i].name, & types[i]);
- }
-}
-
-void
-glsl_type::generate_100ES_types(glsl_symbol_table *symtab)
-{
- add_types_to_symbol_table(symtab, builtin_core_types,
- Elements(builtin_core_types),
- false);
- add_types_to_symbol_table(symtab, builtin_structure_types,
- Elements(builtin_structure_types),
- false);
- add_types_to_symbol_table(symtab, void_type, 1, false);
-}
-
-void
-glsl_type::generate_110_types(glsl_symbol_table *symtab)
-{
- generate_100ES_types(symtab);
-
- add_types_to_symbol_table(symtab, builtin_110_types,
- Elements(builtin_110_types),
- false);
- add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
- Elements(builtin_110_deprecated_structure_types),
- false);
-}
-
-
-void
-glsl_type::generate_120_types(glsl_symbol_table *symtab)
-{
- generate_110_types(symtab);
-
- add_types_to_symbol_table(symtab, builtin_120_types,
- Elements(builtin_120_types), false);
-}
-
-
-void
-glsl_type::generate_130_types(glsl_symbol_table *symtab)
-{
- generate_120_types(symtab);
-
- add_types_to_symbol_table(symtab, builtin_130_types,
- Elements(builtin_130_types), false);
- generate_EXT_texture_array_types(symtab, false);
-}
-
-
-void
-glsl_type::generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab,
- bool warn)
-{
- add_types_to_symbol_table(symtab, builtin_ARB_texture_rectangle_types,
- Elements(builtin_ARB_texture_rectangle_types),
- warn);
-}
-
-
-void
-glsl_type::generate_EXT_texture_array_types(glsl_symbol_table *symtab,
- bool warn)
-{
- add_types_to_symbol_table(symtab, builtin_EXT_texture_array_types,
- Elements(builtin_EXT_texture_array_types),
- warn);
-}
-
-
-void
-_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
-{
- switch (state->language_version) {
- case 100:
- assert(state->es_shader);
- glsl_type::generate_100ES_types(state->symbols);
- break;
- case 110:
- glsl_type::generate_110_types(state->symbols);
- break;
- case 120:
- glsl_type::generate_120_types(state->symbols);
- break;
- case 130:
- glsl_type::generate_130_types(state->symbols);
- break;
- default:
- /* error */
- break;
- }
-
- if (state->ARB_texture_rectangle_enable) {
- glsl_type::generate_ARB_texture_rectangle_types(state->symbols,
- state->ARB_texture_rectangle_warn);
- }
-
- if (state->EXT_texture_array_enable && state->language_version < 130) {
- // These are already included in 130; don't create twice.
- glsl_type::generate_EXT_texture_array_types(state->symbols,
- state->EXT_texture_array_warn);
- }
-}
-
-
-const glsl_type *glsl_type::get_base_type() const
-{
- switch (base_type) {
- case GLSL_TYPE_UINT:
- return uint_type;
- case GLSL_TYPE_INT:
- return int_type;
- case GLSL_TYPE_FLOAT:
- return float_type;
- case GLSL_TYPE_BOOL:
- return bool_type;
- default:
- return error_type;
- }
-}
-
-
-void
-_mesa_glsl_release_types(void)
-{
- if (glsl_type::array_types != NULL) {
- hash_table_dtor(glsl_type::array_types);
- glsl_type::array_types = NULL;
- }
-
- if (glsl_type::record_types != NULL) {
- hash_table_dtor(glsl_type::record_types);
- glsl_type::record_types = NULL;
- }
-}
-
-
-glsl_type::glsl_type(const glsl_type *array, unsigned length) :
- base_type(GLSL_TYPE_ARRAY),
- sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
- sampler_type(0),
- vector_elements(0), matrix_columns(0),
- name(NULL), length(length)
-{
- this->fields.array = array;
- /* Inherit the gl type of the base. The GL type is used for
- * uniform/statevar handling in Mesa and the arrayness of the type
- * is represented by the size rather than the type.
- */
- this->gl_type = array->gl_type;
-
- /* Allow a maximum of 10 characters for the array size. This is enough
- * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
- * NUL.
- */
- const unsigned name_length = strlen(array->name) + 10 + 3;
- char *const n = (char *) talloc_size(this->mem_ctx, name_length);
-
- if (length == 0)
- snprintf(n, name_length, "%s[]", array->name);
- else
- snprintf(n, name_length, "%s[%u]", array->name, length);
-
- this->name = n;
-}
-
-
-const glsl_type *
-glsl_type::get_instance(unsigned base_type, unsigned rows, unsigned columns)
-{
- if (base_type == GLSL_TYPE_VOID)
- return void_type;
-
- if ((rows < 1) || (rows > 4) || (columns < 1) || (columns > 4))
- return error_type;
-
- /* Treat GLSL vectors as Nx1 matrices.
- */
- if (columns == 1) {
- switch (base_type) {
- case GLSL_TYPE_UINT:
- return uint_type + (rows - 1);
- case GLSL_TYPE_INT:
- return int_type + (rows - 1);
- case GLSL_TYPE_FLOAT:
- return float_type + (rows - 1);
- case GLSL_TYPE_BOOL:
- return bool_type + (rows - 1);
- default:
- return error_type;
- }
- } else {
- if ((base_type != GLSL_TYPE_FLOAT) || (rows == 1))
- return error_type;
-
- /* GLSL matrix types are named mat{COLUMNS}x{ROWS}. Only the following
- * combinations are valid:
- *
- * 1 2 3 4
- * 1
- * 2 x x x
- * 3 x x x
- * 4 x x x
- */
-#define IDX(c,r) (((c-1)*3) + (r-1))
-
- switch (IDX(columns, rows)) {
- case IDX(2,2): return mat2_type;
- case IDX(2,3): return mat2x3_type;
- case IDX(2,4): return mat2x4_type;
- case IDX(3,2): return mat3x2_type;
- case IDX(3,3): return mat3_type;
- case IDX(3,4): return mat3x4_type;
- case IDX(4,2): return mat4x2_type;
- case IDX(4,3): return mat4x3_type;
- case IDX(4,4): return mat4_type;
- default: return error_type;
- }
- }
-
- assert(!"Should not get here.");
- return error_type;
-}
-
-
-const glsl_type *
-glsl_type::get_array_instance(const glsl_type *base, unsigned array_size)
-{
-
- if (array_types == NULL) {
- array_types = hash_table_ctor(64, hash_table_string_hash,
- hash_table_string_compare);
- }
-
- /* Generate a name using the base type pointer in the key. This is
- * done because the name of the base type may not be unique across
- * shaders. For example, two shaders may have different record types
- * named 'foo'.
- */
- char key[128];
- snprintf(key, sizeof(key), "%p[%u]", (void *) base, array_size);
-
- const glsl_type *t = (glsl_type *) hash_table_find(array_types, key);
- if (t == NULL) {
- t = new glsl_type(base, array_size);
-
- hash_table_insert(array_types, (void *) t, talloc_strdup(mem_ctx, key));
- }
-
- assert(t->base_type == GLSL_TYPE_ARRAY);
- assert(t->length == array_size);
- assert(t->fields.array == base);
-
- return t;
-}
-
-
-int
-glsl_type::record_key_compare(const void *a, const void *b)
-{
- const glsl_type *const key1 = (glsl_type *) a;
- const glsl_type *const key2 = (glsl_type *) b;
-
- /* Return zero is the types match (there is zero difference) or non-zero
- * otherwise.
- */
- if (strcmp(key1->name, key2->name) != 0)
- return 1;
-
- if (key1->length != key2->length)
- return 1;
-
- for (unsigned i = 0; i < key1->length; i++) {
- if (key1->fields.structure[i].type != key2->fields.structure[i].type)
- return 1;
- if (strcmp(key1->fields.structure[i].name,
- key2->fields.structure[i].name) != 0)
- return 1;
- }
-
- return 0;
-}
-
-
-unsigned
-glsl_type::record_key_hash(const void *a)
-{
- const glsl_type *const key = (glsl_type *) a;
- char hash_key[128];
- unsigned size = 0;
-
- size = snprintf(hash_key, sizeof(hash_key), "%08x", key->length);
-
- for (unsigned i = 0; i < key->length; i++) {
- if (size >= sizeof(hash_key))
- break;
-
- size += snprintf(& hash_key[size], sizeof(hash_key) - size,
- "%p", (void *) key->fields.structure[i].type);
- }
-
- return hash_table_string_hash(& hash_key);
-}
-
-
-const glsl_type *
-glsl_type::get_record_instance(const glsl_struct_field *fields,
- unsigned num_fields,
- const char *name)
-{
- const glsl_type key(fields, num_fields, name);
-
- if (record_types == NULL) {
- record_types = hash_table_ctor(64, record_key_hash, record_key_compare);
- }
-
- const glsl_type *t = (glsl_type *) hash_table_find(record_types, & key);
- if (t == NULL) {
- t = new glsl_type(fields, num_fields, name);
-
- hash_table_insert(record_types, (void *) t, t);
- }
-
- assert(t->base_type == GLSL_TYPE_STRUCT);
- assert(t->length == num_fields);
- assert(strcmp(t->name, name) == 0);
-
- return t;
-}
-
-
-const glsl_type *
-glsl_type::field_type(const char *name) const
-{
- if (this->base_type != GLSL_TYPE_STRUCT)
- return error_type;
-
- for (unsigned i = 0; i < this->length; i++) {
- if (strcmp(name, this->fields.structure[i].name) == 0)
- return this->fields.structure[i].type;
- }
-
- return error_type;
-}
-
-
-int
-glsl_type::field_index(const char *name) const
-{
- if (this->base_type != GLSL_TYPE_STRUCT)
- return -1;
-
- for (unsigned i = 0; i < this->length; i++) {
- if (strcmp(name, this->fields.structure[i].name) == 0)
- return i;
- }
-
- return -1;
-}
-
-
-unsigned
-glsl_type::component_slots() const
-{
- switch (this->base_type) {
- case GLSL_TYPE_UINT:
- case GLSL_TYPE_INT:
- case GLSL_TYPE_FLOAT:
- case GLSL_TYPE_BOOL:
- return this->components();
-
- case GLSL_TYPE_STRUCT: {
- unsigned size = 0;
-
- for (unsigned i = 0; i < this->length; i++)
- size += this->fields.structure[i].type->component_slots();
-
- return size;
- }
-
- case GLSL_TYPE_ARRAY:
- return this->length * this->fields.array->component_slots();
-
- default:
- return 0;
- }
-}
+/* + * Copyright © 2009 Intel Corporation + * + * 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 (including the next + * paragraph) 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +#include <cstdio> +#include <stdlib.h> +#include "main/core.h" /* for Elements */ +#include "glsl_symbol_table.h" +#include "glsl_parser_extras.h" +#include "glsl_types.h" +#include "builtin_types.h" +extern "C" { +#include "program/hash_table.h" +} + +hash_table *glsl_type::array_types = NULL; +hash_table *glsl_type::record_types = NULL; +void *glsl_type::mem_ctx = NULL; + +void +glsl_type::init_ralloc_type_ctx(void) +{ + if (glsl_type::mem_ctx == NULL) { + glsl_type::mem_ctx = ralloc_autofree_context(); + assert(glsl_type::mem_ctx != NULL); + } +} + +glsl_type::glsl_type(GLenum gl_type, + glsl_base_type base_type, unsigned vector_elements, + unsigned matrix_columns, const char *name) : + gl_type(gl_type), + base_type(base_type), + sampler_dimensionality(0), sampler_shadow(0), sampler_array(0), + sampler_type(0), + vector_elements(vector_elements), matrix_columns(matrix_columns), + length(0) +{ + init_ralloc_type_ctx(); + this->name = ralloc_strdup(this->mem_ctx, name); + /* Neither dimension is zero or both dimensions are zero. + */ + assert((vector_elements == 0) == (matrix_columns == 0)); + memset(& fields, 0, sizeof(fields)); +} + +glsl_type::glsl_type(GLenum gl_type, + enum glsl_sampler_dim dim, bool shadow, bool array, + unsigned type, const char *name) : + gl_type(gl_type), + base_type(GLSL_TYPE_SAMPLER), + sampler_dimensionality(dim), sampler_shadow(shadow), + sampler_array(array), sampler_type(type), + vector_elements(0), matrix_columns(0), + length(0) +{ + init_ralloc_type_ctx(); + this->name = ralloc_strdup(this->mem_ctx, name); + memset(& fields, 0, sizeof(fields)); +} + +glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields, + const char *name) : + base_type(GLSL_TYPE_STRUCT), + sampler_dimensionality(0), sampler_shadow(0), sampler_array(0), + sampler_type(0), + vector_elements(0), matrix_columns(0), + length(num_fields) +{ + unsigned int i; + + init_ralloc_type_ctx(); + this->name = ralloc_strdup(this->mem_ctx, name); + this->fields.structure = ralloc_array(this->mem_ctx, + glsl_struct_field, length); + for (i = 0; i < length; i++) { + this->fields.structure[i].type = fields[i].type; + this->fields.structure[i].name = ralloc_strdup(this->fields.structure, + fields[i].name); + } +} + +static void +add_types_to_symbol_table(glsl_symbol_table *symtab, + const struct glsl_type *types, + unsigned num_types, bool warn) +{ + (void) warn; + + for (unsigned i = 0; i < num_types; i++) { + symtab->add_type(types[i].name, & types[i]); + } +} + +void +glsl_type::generate_100ES_types(glsl_symbol_table *symtab) +{ + add_types_to_symbol_table(symtab, builtin_core_types, + Elements(builtin_core_types), + false); + add_types_to_symbol_table(symtab, builtin_structure_types, + Elements(builtin_structure_types), + false); + add_types_to_symbol_table(symtab, void_type, 1, false); +} + +void +glsl_type::generate_110_types(glsl_symbol_table *symtab) +{ + generate_100ES_types(symtab); + + add_types_to_symbol_table(symtab, builtin_110_types, + Elements(builtin_110_types), + false); + add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types, + Elements(builtin_110_deprecated_structure_types), + false); +} + + +void +glsl_type::generate_120_types(glsl_symbol_table *symtab) +{ + generate_110_types(symtab); + + add_types_to_symbol_table(symtab, builtin_120_types, + Elements(builtin_120_types), false); +} + + +void +glsl_type::generate_130_types(glsl_symbol_table *symtab) +{ + generate_120_types(symtab); + + add_types_to_symbol_table(symtab, builtin_130_types, + Elements(builtin_130_types), false); + generate_EXT_texture_array_types(symtab, false); +} + + +void +glsl_type::generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab, + bool warn) +{ + add_types_to_symbol_table(symtab, builtin_ARB_texture_rectangle_types, + Elements(builtin_ARB_texture_rectangle_types), + warn); +} + + +void +glsl_type::generate_EXT_texture_array_types(glsl_symbol_table *symtab, + bool warn) +{ + add_types_to_symbol_table(symtab, builtin_EXT_texture_array_types, + Elements(builtin_EXT_texture_array_types), + warn); +} + + +void +_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state) +{ + switch (state->language_version) { + case 100: + assert(state->es_shader); + glsl_type::generate_100ES_types(state->symbols); + break; + case 110: + glsl_type::generate_110_types(state->symbols); + break; + case 120: + glsl_type::generate_120_types(state->symbols); + break; + case 130: + glsl_type::generate_130_types(state->symbols); + break; + default: + /* error */ + break; + } + + if (state->ARB_texture_rectangle_enable) { + glsl_type::generate_ARB_texture_rectangle_types(state->symbols, + state->ARB_texture_rectangle_warn); + } + + if (state->EXT_texture_array_enable && state->language_version < 130) { + // These are already included in 130; don't create twice. + glsl_type::generate_EXT_texture_array_types(state->symbols, + state->EXT_texture_array_warn); + } +} + + +const glsl_type *glsl_type::get_base_type() const +{ + switch (base_type) { + case GLSL_TYPE_UINT: + return uint_type; + case GLSL_TYPE_INT: + return int_type; + case GLSL_TYPE_FLOAT: + return float_type; + case GLSL_TYPE_BOOL: + return bool_type; + default: + return error_type; + } +} + + +void +_mesa_glsl_release_types(void) +{ + if (glsl_type::array_types != NULL) { + hash_table_dtor(glsl_type::array_types); + glsl_type::array_types = NULL; + } + + if (glsl_type::record_types != NULL) { + hash_table_dtor(glsl_type::record_types); + glsl_type::record_types = NULL; + } +} + + +glsl_type::glsl_type(const glsl_type *array, unsigned length) : + base_type(GLSL_TYPE_ARRAY), + sampler_dimensionality(0), sampler_shadow(0), sampler_array(0), + sampler_type(0), + vector_elements(0), matrix_columns(0), + name(NULL), length(length) +{ + this->fields.array = array; + /* Inherit the gl type of the base. The GL type is used for + * uniform/statevar handling in Mesa and the arrayness of the type + * is represented by the size rather than the type. + */ + this->gl_type = array->gl_type; + + /* Allow a maximum of 10 characters for the array size. This is enough + * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating + * NUL. + */ + const unsigned name_length = strlen(array->name) + 10 + 3; + char *const n = (char *) ralloc_size(this->mem_ctx, name_length); + + if (length == 0) + snprintf(n, name_length, "%s[]", array->name); + else + snprintf(n, name_length, "%s[%u]", array->name, length); + + this->name = n; +} + + +const glsl_type * +glsl_type::get_instance(unsigned base_type, unsigned rows, unsigned columns) +{ + if (base_type == GLSL_TYPE_VOID) + return void_type; + + if ((rows < 1) || (rows > 4) || (columns < 1) || (columns > 4)) + return error_type; + + /* Treat GLSL vectors as Nx1 matrices. + */ + if (columns == 1) { + switch (base_type) { + case GLSL_TYPE_UINT: + return uint_type + (rows - 1); + case GLSL_TYPE_INT: + return int_type + (rows - 1); + case GLSL_TYPE_FLOAT: + return float_type + (rows - 1); + case GLSL_TYPE_BOOL: + return bool_type + (rows - 1); + default: + return error_type; + } + } else { + if ((base_type != GLSL_TYPE_FLOAT) || (rows == 1)) + return error_type; + + /* GLSL matrix types are named mat{COLUMNS}x{ROWS}. Only the following + * combinations are valid: + * + * 1 2 3 4 + * 1 + * 2 x x x + * 3 x x x + * 4 x x x + */ +#define IDX(c,r) (((c-1)*3) + (r-1)) + + switch (IDX(columns, rows)) { + case IDX(2,2): return mat2_type; + case IDX(2,3): return mat2x3_type; + case IDX(2,4): return mat2x4_type; + case IDX(3,2): return mat3x2_type; + case IDX(3,3): return mat3_type; + case IDX(3,4): return mat3x4_type; + case IDX(4,2): return mat4x2_type; + case IDX(4,3): return mat4x3_type; + case IDX(4,4): return mat4_type; + default: return error_type; + } + } + + assert(!"Should not get here."); + return error_type; +} + + +const glsl_type * +glsl_type::get_array_instance(const glsl_type *base, unsigned array_size) +{ + + if (array_types == NULL) { + array_types = hash_table_ctor(64, hash_table_string_hash, + hash_table_string_compare); + } + + /* Generate a name using the base type pointer in the key. This is + * done because the name of the base type may not be unique across + * shaders. For example, two shaders may have different record types + * named 'foo'. + */ + char key[128]; + snprintf(key, sizeof(key), "%p[%u]", (void *) base, array_size); + + const glsl_type *t = (glsl_type *) hash_table_find(array_types, key); + if (t == NULL) { + t = new glsl_type(base, array_size); + + hash_table_insert(array_types, (void *) t, ralloc_strdup(mem_ctx, key)); + } + + assert(t->base_type == GLSL_TYPE_ARRAY); + assert(t->length == array_size); + assert(t->fields.array == base); + + return t; +} + + +int +glsl_type::record_key_compare(const void *a, const void *b) +{ + const glsl_type *const key1 = (glsl_type *) a; + const glsl_type *const key2 = (glsl_type *) b; + + /* Return zero is the types match (there is zero difference) or non-zero + * otherwise. + */ + if (strcmp(key1->name, key2->name) != 0) + return 1; + + if (key1->length != key2->length) + return 1; + + for (unsigned i = 0; i < key1->length; i++) { + if (key1->fields.structure[i].type != key2->fields.structure[i].type) + return 1; + if (strcmp(key1->fields.structure[i].name, + key2->fields.structure[i].name) != 0) + return 1; + } + + return 0; +} + + +unsigned +glsl_type::record_key_hash(const void *a) +{ + const glsl_type *const key = (glsl_type *) a; + char hash_key[128]; + unsigned size = 0; + + size = snprintf(hash_key, sizeof(hash_key), "%08x", key->length); + + for (unsigned i = 0; i < key->length; i++) { + if (size >= sizeof(hash_key)) + break; + + size += snprintf(& hash_key[size], sizeof(hash_key) - size, + "%p", (void *) key->fields.structure[i].type); + } + + return hash_table_string_hash(& hash_key); +} + + +const glsl_type * +glsl_type::get_record_instance(const glsl_struct_field *fields, + unsigned num_fields, + const char *name) +{ + const glsl_type key(fields, num_fields, name); + + if (record_types == NULL) { + record_types = hash_table_ctor(64, record_key_hash, record_key_compare); + } + + const glsl_type *t = (glsl_type *) hash_table_find(record_types, & key); + if (t == NULL) { + t = new glsl_type(fields, num_fields, name); + + hash_table_insert(record_types, (void *) t, t); + } + + assert(t->base_type == GLSL_TYPE_STRUCT); + assert(t->length == num_fields); + assert(strcmp(t->name, name) == 0); + + return t; +} + + +const glsl_type * +glsl_type::field_type(const char *name) const +{ + if (this->base_type != GLSL_TYPE_STRUCT) + return error_type; + + for (unsigned i = 0; i < this->length; i++) { + if (strcmp(name, this->fields.structure[i].name) == 0) + return this->fields.structure[i].type; + } + + return error_type; +} + + +int +glsl_type::field_index(const char *name) const +{ + if (this->base_type != GLSL_TYPE_STRUCT) + return -1; + + for (unsigned i = 0; i < this->length; i++) { + if (strcmp(name, this->fields.structure[i].name) == 0) + return i; + } + + return -1; +} + + +unsigned +glsl_type::component_slots() const +{ + switch (this->base_type) { + case GLSL_TYPE_UINT: + case GLSL_TYPE_INT: + case GLSL_TYPE_FLOAT: + case GLSL_TYPE_BOOL: + return this->components(); + + case GLSL_TYPE_STRUCT: { + unsigned size = 0; + + for (unsigned i = 0; i < this->length; i++) + size += this->fields.structure[i].type->component_slots(); + + return size; + } + + case GLSL_TYPE_ARRAY: + return this->length * this->fields.array->component_slots(); + + default: + return 0; + } +} |