From 0bf07d32cbd460220c67d726900772cf3692746d Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 1 Feb 2011 10:02:38 +0000 Subject: libX11 libXinerama mesa git update 1 Feb 2011 --- mesalib/src/glsl/glsl_types.cpp | 994 ++++++++++++++++++++-------------------- 1 file changed, 497 insertions(+), 497 deletions(-) (limited to 'mesalib/src/glsl/glsl_types.cpp') 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 -#include -#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 +#include +#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; + } +} -- cgit v1.2.3