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-rw-r--r--mesalib/src/glsl/glsl_types.h956
1 files changed, 478 insertions, 478 deletions
diff --git a/mesalib/src/glsl/glsl_types.h b/mesalib/src/glsl/glsl_types.h
index 3c2672c01..e4c84c953 100644
--- a/mesalib/src/glsl/glsl_types.h
+++ b/mesalib/src/glsl/glsl_types.h
@@ -1,478 +1,478 @@
-/* -*- c++ -*- */
-/*
- * 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.
- */
-
-#pragma once
-#ifndef GLSL_TYPES_H
-#define GLSL_TYPES_H
-
-#include <string.h>
-#include <assert.h>
-
-extern "C" {
-#include "GL/gl.h"
-}
-
-#include "ralloc.h"
-
-struct _mesa_glsl_parse_state;
-struct glsl_symbol_table;
-
-extern "C" void
-_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
-
-extern "C" void
-_mesa_glsl_release_types(void);
-
-enum glsl_base_type {
- GLSL_TYPE_UINT = 0,
- GLSL_TYPE_INT,
- GLSL_TYPE_FLOAT,
- GLSL_TYPE_BOOL,
- GLSL_TYPE_SAMPLER,
- GLSL_TYPE_STRUCT,
- GLSL_TYPE_ARRAY,
- GLSL_TYPE_VOID,
- GLSL_TYPE_ERROR
-};
-
-enum glsl_sampler_dim {
- GLSL_SAMPLER_DIM_1D = 0,
- GLSL_SAMPLER_DIM_2D,
- GLSL_SAMPLER_DIM_3D,
- GLSL_SAMPLER_DIM_CUBE,
- GLSL_SAMPLER_DIM_RECT,
- GLSL_SAMPLER_DIM_BUF
-};
-
-
-struct glsl_type {
- GLenum gl_type;
- glsl_base_type base_type;
-
- unsigned sampler_dimensionality:3;
- unsigned sampler_shadow:1;
- unsigned sampler_array:1;
- unsigned sampler_type:2; /**< Type of data returned using this sampler.
- * only \c GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
- * and \c GLSL_TYPE_UINT are valid.
- */
-
- /* Callers of this ralloc-based new need not call delete. It's
- * easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */
- static void* operator new(size_t size)
- {
- if (glsl_type::mem_ctx == NULL) {
- glsl_type::mem_ctx = ralloc_context(NULL);
- assert(glsl_type::mem_ctx != NULL);
- }
-
- void *type;
-
- type = ralloc_size(glsl_type::mem_ctx, size);
- assert(type != NULL);
-
- return type;
- }
-
- /* If the user *does* call delete, that's OK, we will just
- * ralloc_free in that case. */
- static void operator delete(void *type)
- {
- ralloc_free(type);
- }
-
- /**
- * \name Vector and matrix element counts
- *
- * For scalars, each of these values will be 1. For non-numeric types
- * these will be 0.
- */
- /*@{*/
- unsigned vector_elements:3; /**< 1, 2, 3, or 4 vector elements. */
- unsigned matrix_columns:3; /**< 1, 2, 3, or 4 matrix columns. */
- /*@}*/
-
- /**
- * Name of the data type
- *
- * This may be \c NULL for anonymous structures, for arrays, or for
- * function types.
- */
- const char *name;
-
- /**
- * For \c GLSL_TYPE_ARRAY, this is the length of the array. For
- * \c GLSL_TYPE_STRUCT, it is the number of elements in the structure and
- * the number of values pointed to by \c fields.structure (below).
- */
- unsigned length;
-
- /**
- * Subtype of composite data types.
- */
- union {
- const struct glsl_type *array; /**< Type of array elements. */
- const struct glsl_type *parameters; /**< Parameters to function. */
- struct glsl_struct_field *structure; /**< List of struct fields. */
- } fields;
-
-
- /**
- * \name Pointers to various public type singletons
- */
- /*@{*/
- static const glsl_type *const error_type;
- static const glsl_type *const void_type;
- static const glsl_type *const int_type;
- static const glsl_type *const ivec4_type;
- static const glsl_type *const uint_type;
- static const glsl_type *const uvec2_type;
- static const glsl_type *const uvec3_type;
- static const glsl_type *const uvec4_type;
- static const glsl_type *const float_type;
- static const glsl_type *const vec2_type;
- static const glsl_type *const vec3_type;
- static const glsl_type *const vec4_type;
- static const glsl_type *const bool_type;
- static const glsl_type *const mat2_type;
- static const glsl_type *const mat2x3_type;
- static const glsl_type *const mat2x4_type;
- static const glsl_type *const mat3x2_type;
- static const glsl_type *const mat3_type;
- static const glsl_type *const mat3x4_type;
- static const glsl_type *const mat4x2_type;
- static const glsl_type *const mat4x3_type;
- static const glsl_type *const mat4_type;
- /*@}*/
-
-
- /**
- * For numeric and boolean derrived types returns the basic scalar type
- *
- * If the type is a numeric or boolean scalar, vector, or matrix type,
- * this function gets the scalar type of the individual components. For
- * all other types, including arrays of numeric or boolean types, the
- * error type is returned.
- */
- const glsl_type *get_base_type() const;
-
- /**
- * Query the type of elements in an array
- *
- * \return
- * Pointer to the type of elements in the array for array types, or \c NULL
- * for non-array types.
- */
- const glsl_type *element_type() const
- {
- return is_array() ? fields.array : NULL;
- }
-
- /**
- * Get the instance of a built-in scalar, vector, or matrix type
- */
- static const glsl_type *get_instance(unsigned base_type, unsigned rows,
- unsigned columns);
-
- /**
- * Get the instance of an array type
- */
- static const glsl_type *get_array_instance(const glsl_type *base,
- unsigned elements);
-
- /**
- * Get the instance of a record type
- */
- static const glsl_type *get_record_instance(const glsl_struct_field *fields,
- unsigned num_fields,
- const char *name);
-
- /**
- * Query the total number of scalars that make up a scalar, vector or matrix
- */
- unsigned components() const
- {
- return vector_elements * matrix_columns;
- }
-
- /**
- * Calculate the number of components slots required to hold this type
- *
- * This is used to determine how many uniform or varying locations a type
- * might occupy.
- */
- unsigned component_slots() const;
-
-
- /**
- * Query whether or not a type is a scalar (non-vector and non-matrix).
- */
- bool is_scalar() const
- {
- return (vector_elements == 1)
- && (base_type >= GLSL_TYPE_UINT)
- && (base_type <= GLSL_TYPE_BOOL);
- }
-
- /**
- * Query whether or not a type is a vector
- */
- bool is_vector() const
- {
- return (vector_elements > 1)
- && (matrix_columns == 1)
- && (base_type >= GLSL_TYPE_UINT)
- && (base_type <= GLSL_TYPE_BOOL);
- }
-
- /**
- * Query whether or not a type is a matrix
- */
- bool is_matrix() const
- {
- /* GLSL only has float matrices. */
- return (matrix_columns > 1) && (base_type == GLSL_TYPE_FLOAT);
- }
-
- /**
- * Query whether or not a type is a non-array numeric type
- */
- bool is_numeric() const
- {
- return (base_type >= GLSL_TYPE_UINT) && (base_type <= GLSL_TYPE_FLOAT);
- }
-
- /**
- * Query whether or not a type is an integral type
- */
- bool is_integer() const
- {
- return (base_type == GLSL_TYPE_UINT) || (base_type == GLSL_TYPE_INT);
- }
-
- /**
- * Query whether or not a type is a float type
- */
- bool is_float() const
- {
- return base_type == GLSL_TYPE_FLOAT;
- }
-
- /**
- * Query whether or not a type is a non-array boolean type
- */
- bool is_boolean() const
- {
- return base_type == GLSL_TYPE_BOOL;
- }
-
- /**
- * Query whether or not a type is a sampler
- */
- bool is_sampler() const
- {
- return base_type == GLSL_TYPE_SAMPLER;
- }
-
- /**
- * Query whether or not a type is an array
- */
- bool is_array() const
- {
- return base_type == GLSL_TYPE_ARRAY;
- }
-
- /**
- * Query whether or not a type is a record
- */
- bool is_record() const
- {
- return base_type == GLSL_TYPE_STRUCT;
- }
-
- /**
- * Query whether or not a type is the void type singleton.
- */
- bool is_void() const
- {
- return base_type == GLSL_TYPE_VOID;
- }
-
- /**
- * Query whether or not a type is the error type singleton.
- */
- bool is_error() const
- {
- return base_type == GLSL_TYPE_ERROR;
- }
-
- /**
- * Query the full type of a matrix row
- *
- * \return
- * If the type is not a matrix, \c glsl_type::error_type is returned.
- * Otherwise a type matching the rows of the matrix is returned.
- */
- const glsl_type *row_type() const
- {
- return is_matrix()
- ? get_instance(base_type, matrix_columns, 1)
- : error_type;
- }
-
- /**
- * Query the full type of a matrix column
- *
- * \return
- * If the type is not a matrix, \c glsl_type::error_type is returned.
- * Otherwise a type matching the columns of the matrix is returned.
- */
- const glsl_type *column_type() const
- {
- return is_matrix()
- ? get_instance(base_type, vector_elements, 1)
- : error_type;
- }
-
-
- /**
- * Get the type of a structure field
- *
- * \return
- * Pointer to the type of the named field. If the type is not a structure
- * or the named field does not exist, \c glsl_type::error_type is returned.
- */
- const glsl_type *field_type(const char *name) const;
-
-
- /**
- * Get the location of a filed within a record type
- */
- int field_index(const char *name) const;
-
-
- /**
- * Query the number of elements in an array type
- *
- * \return
- * The number of elements in the array for array types or -1 for non-array
- * types. If the number of elements in the array has not yet been declared,
- * zero is returned.
- */
- int array_size() const
- {
- return is_array() ? length : -1;
- }
-
-private:
- /**
- * ralloc context for all glsl_type allocations
- *
- * Set on the first call to \c glsl_type::new.
- */
- static void *mem_ctx;
-
- void init_ralloc_type_ctx(void);
-
- /** Constructor for vector and matrix types */
- glsl_type(GLenum gl_type,
- glsl_base_type base_type, unsigned vector_elements,
- unsigned matrix_columns, const char *name);
-
- /** Constructor for sampler types */
- glsl_type(GLenum gl_type,
- enum glsl_sampler_dim dim, bool shadow, bool array,
- unsigned type, const char *name);
-
- /** Constructor for record types */
- glsl_type(const glsl_struct_field *fields, unsigned num_fields,
- const char *name);
-
- /** Constructor for array types */
- glsl_type(const glsl_type *array, unsigned length);
-
- /** Hash table containing the known array types. */
- static struct hash_table *array_types;
-
- /** Hash table containing the known record types. */
- static struct hash_table *record_types;
-
- static int record_key_compare(const void *a, const void *b);
- static unsigned record_key_hash(const void *key);
-
- /**
- * \name Pointers to various type singletons
- */
- /*@{*/
- static const glsl_type _error_type;
- static const glsl_type _void_type;
- static const glsl_type _sampler3D_type;
- static const glsl_type builtin_core_types[];
- static const glsl_type builtin_structure_types[];
- static const glsl_type builtin_110_deprecated_structure_types[];
- static const glsl_type builtin_110_types[];
- static const glsl_type builtin_120_types[];
- static const glsl_type builtin_130_types[];
- static const glsl_type builtin_ARB_texture_rectangle_types[];
- static const glsl_type builtin_EXT_texture_array_types[];
- static const glsl_type builtin_EXT_texture_buffer_object_types[];
- /*@}*/
-
- /**
- * \name Methods to populate a symbol table with built-in types.
- *
- * \internal
- * This is one of the truely annoying things about C++. Methods that are
- * completely internal and private to a type still have to be advertised to
- * the world in a public header file.
- */
- /*@{*/
- static void generate_100ES_types(glsl_symbol_table *);
- static void generate_110_types(glsl_symbol_table *);
- static void generate_120_types(glsl_symbol_table *);
- static void generate_130_types(glsl_symbol_table *);
- static void generate_ARB_texture_rectangle_types(glsl_symbol_table *, bool);
- static void generate_EXT_texture_array_types(glsl_symbol_table *, bool);
- static void generate_OES_texture_3D_types(glsl_symbol_table *, bool);
- /*@}*/
-
- /**
- * \name Friend functions.
- *
- * These functions are friends because they must have C linkage and the
- * need to call various private methods or access various private static
- * data.
- */
- /*@{*/
- friend void _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *);
- friend void _mesa_glsl_release_types(void);
- /*@}*/
-};
-
-struct glsl_struct_field {
- const struct glsl_type *type;
- const char *name;
-};
-
-#endif /* GLSL_TYPES_H */
+/* -*- c++ -*- */
+/*
+ * 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.
+ */
+
+#pragma once
+#ifndef GLSL_TYPES_H
+#define GLSL_TYPES_H
+
+#include <string.h>
+#include <assert.h>
+
+extern "C" {
+#include "GL/gl.h"
+}
+
+#include "ralloc.h"
+
+struct _mesa_glsl_parse_state;
+struct glsl_symbol_table;
+
+extern "C" void
+_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
+
+extern "C" void
+_mesa_glsl_release_types(void);
+
+enum glsl_base_type {
+ GLSL_TYPE_UINT = 0,
+ GLSL_TYPE_INT,
+ GLSL_TYPE_FLOAT,
+ GLSL_TYPE_BOOL,
+ GLSL_TYPE_SAMPLER,
+ GLSL_TYPE_STRUCT,
+ GLSL_TYPE_ARRAY,
+ GLSL_TYPE_VOID,
+ GLSL_TYPE_ERROR
+};
+
+enum glsl_sampler_dim {
+ GLSL_SAMPLER_DIM_1D = 0,
+ GLSL_SAMPLER_DIM_2D,
+ GLSL_SAMPLER_DIM_3D,
+ GLSL_SAMPLER_DIM_CUBE,
+ GLSL_SAMPLER_DIM_RECT,
+ GLSL_SAMPLER_DIM_BUF
+};
+
+
+struct glsl_type {
+ GLenum gl_type;
+ glsl_base_type base_type;
+
+ unsigned sampler_dimensionality:3; /**< \see glsl_sampler_dim */
+ unsigned sampler_shadow:1;
+ unsigned sampler_array:1;
+ unsigned sampler_type:2; /**< Type of data returned using this sampler.
+ * only \c GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
+ * and \c GLSL_TYPE_UINT are valid.
+ */
+
+ /* Callers of this ralloc-based new need not call delete. It's
+ * easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */
+ static void* operator new(size_t size)
+ {
+ if (glsl_type::mem_ctx == NULL) {
+ glsl_type::mem_ctx = ralloc_context(NULL);
+ assert(glsl_type::mem_ctx != NULL);
+ }
+
+ void *type;
+
+ type = ralloc_size(glsl_type::mem_ctx, size);
+ assert(type != NULL);
+
+ return type;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * ralloc_free in that case. */
+ static void operator delete(void *type)
+ {
+ ralloc_free(type);
+ }
+
+ /**
+ * \name Vector and matrix element counts
+ *
+ * For scalars, each of these values will be 1. For non-numeric types
+ * these will be 0.
+ */
+ /*@{*/
+ unsigned vector_elements:3; /**< 1, 2, 3, or 4 vector elements. */
+ unsigned matrix_columns:3; /**< 1, 2, 3, or 4 matrix columns. */
+ /*@}*/
+
+ /**
+ * Name of the data type
+ *
+ * This may be \c NULL for anonymous structures, for arrays, or for
+ * function types.
+ */
+ const char *name;
+
+ /**
+ * For \c GLSL_TYPE_ARRAY, this is the length of the array. For
+ * \c GLSL_TYPE_STRUCT, it is the number of elements in the structure and
+ * the number of values pointed to by \c fields.structure (below).
+ */
+ unsigned length;
+
+ /**
+ * Subtype of composite data types.
+ */
+ union {
+ const struct glsl_type *array; /**< Type of array elements. */
+ const struct glsl_type *parameters; /**< Parameters to function. */
+ struct glsl_struct_field *structure; /**< List of struct fields. */
+ } fields;
+
+
+ /**
+ * \name Pointers to various public type singletons
+ */
+ /*@{*/
+ static const glsl_type *const error_type;
+ static const glsl_type *const void_type;
+ static const glsl_type *const int_type;
+ static const glsl_type *const ivec4_type;
+ static const glsl_type *const uint_type;
+ static const glsl_type *const uvec2_type;
+ static const glsl_type *const uvec3_type;
+ static const glsl_type *const uvec4_type;
+ static const glsl_type *const float_type;
+ static const glsl_type *const vec2_type;
+ static const glsl_type *const vec3_type;
+ static const glsl_type *const vec4_type;
+ static const glsl_type *const bool_type;
+ static const glsl_type *const mat2_type;
+ static const glsl_type *const mat2x3_type;
+ static const glsl_type *const mat2x4_type;
+ static const glsl_type *const mat3x2_type;
+ static const glsl_type *const mat3_type;
+ static const glsl_type *const mat3x4_type;
+ static const glsl_type *const mat4x2_type;
+ static const glsl_type *const mat4x3_type;
+ static const glsl_type *const mat4_type;
+ /*@}*/
+
+
+ /**
+ * For numeric and boolean derrived types returns the basic scalar type
+ *
+ * If the type is a numeric or boolean scalar, vector, or matrix type,
+ * this function gets the scalar type of the individual components. For
+ * all other types, including arrays of numeric or boolean types, the
+ * error type is returned.
+ */
+ const glsl_type *get_base_type() const;
+
+ /**
+ * Query the type of elements in an array
+ *
+ * \return
+ * Pointer to the type of elements in the array for array types, or \c NULL
+ * for non-array types.
+ */
+ const glsl_type *element_type() const
+ {
+ return is_array() ? fields.array : NULL;
+ }
+
+ /**
+ * Get the instance of a built-in scalar, vector, or matrix type
+ */
+ static const glsl_type *get_instance(unsigned base_type, unsigned rows,
+ unsigned columns);
+
+ /**
+ * Get the instance of an array type
+ */
+ static const glsl_type *get_array_instance(const glsl_type *base,
+ unsigned elements);
+
+ /**
+ * Get the instance of a record type
+ */
+ static const glsl_type *get_record_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ const char *name);
+
+ /**
+ * Query the total number of scalars that make up a scalar, vector or matrix
+ */
+ unsigned components() const
+ {
+ return vector_elements * matrix_columns;
+ }
+
+ /**
+ * Calculate the number of components slots required to hold this type
+ *
+ * This is used to determine how many uniform or varying locations a type
+ * might occupy.
+ */
+ unsigned component_slots() const;
+
+
+ /**
+ * Query whether or not a type is a scalar (non-vector and non-matrix).
+ */
+ bool is_scalar() const
+ {
+ return (vector_elements == 1)
+ && (base_type >= GLSL_TYPE_UINT)
+ && (base_type <= GLSL_TYPE_BOOL);
+ }
+
+ /**
+ * Query whether or not a type is a vector
+ */
+ bool is_vector() const
+ {
+ return (vector_elements > 1)
+ && (matrix_columns == 1)
+ && (base_type >= GLSL_TYPE_UINT)
+ && (base_type <= GLSL_TYPE_BOOL);
+ }
+
+ /**
+ * Query whether or not a type is a matrix
+ */
+ bool is_matrix() const
+ {
+ /* GLSL only has float matrices. */
+ return (matrix_columns > 1) && (base_type == GLSL_TYPE_FLOAT);
+ }
+
+ /**
+ * Query whether or not a type is a non-array numeric type
+ */
+ bool is_numeric() const
+ {
+ return (base_type >= GLSL_TYPE_UINT) && (base_type <= GLSL_TYPE_FLOAT);
+ }
+
+ /**
+ * Query whether or not a type is an integral type
+ */
+ bool is_integer() const
+ {
+ return (base_type == GLSL_TYPE_UINT) || (base_type == GLSL_TYPE_INT);
+ }
+
+ /**
+ * Query whether or not a type is a float type
+ */
+ bool is_float() const
+ {
+ return base_type == GLSL_TYPE_FLOAT;
+ }
+
+ /**
+ * Query whether or not a type is a non-array boolean type
+ */
+ bool is_boolean() const
+ {
+ return base_type == GLSL_TYPE_BOOL;
+ }
+
+ /**
+ * Query whether or not a type is a sampler
+ */
+ bool is_sampler() const
+ {
+ return base_type == GLSL_TYPE_SAMPLER;
+ }
+
+ /**
+ * Query whether or not a type is an array
+ */
+ bool is_array() const
+ {
+ return base_type == GLSL_TYPE_ARRAY;
+ }
+
+ /**
+ * Query whether or not a type is a record
+ */
+ bool is_record() const
+ {
+ return base_type == GLSL_TYPE_STRUCT;
+ }
+
+ /**
+ * Query whether or not a type is the void type singleton.
+ */
+ bool is_void() const
+ {
+ return base_type == GLSL_TYPE_VOID;
+ }
+
+ /**
+ * Query whether or not a type is the error type singleton.
+ */
+ bool is_error() const
+ {
+ return base_type == GLSL_TYPE_ERROR;
+ }
+
+ /**
+ * Query the full type of a matrix row
+ *
+ * \return
+ * If the type is not a matrix, \c glsl_type::error_type is returned.
+ * Otherwise a type matching the rows of the matrix is returned.
+ */
+ const glsl_type *row_type() const
+ {
+ return is_matrix()
+ ? get_instance(base_type, matrix_columns, 1)
+ : error_type;
+ }
+
+ /**
+ * Query the full type of a matrix column
+ *
+ * \return
+ * If the type is not a matrix, \c glsl_type::error_type is returned.
+ * Otherwise a type matching the columns of the matrix is returned.
+ */
+ const glsl_type *column_type() const
+ {
+ return is_matrix()
+ ? get_instance(base_type, vector_elements, 1)
+ : error_type;
+ }
+
+
+ /**
+ * Get the type of a structure field
+ *
+ * \return
+ * Pointer to the type of the named field. If the type is not a structure
+ * or the named field does not exist, \c glsl_type::error_type is returned.
+ */
+ const glsl_type *field_type(const char *name) const;
+
+
+ /**
+ * Get the location of a filed within a record type
+ */
+ int field_index(const char *name) const;
+
+
+ /**
+ * Query the number of elements in an array type
+ *
+ * \return
+ * The number of elements in the array for array types or -1 for non-array
+ * types. If the number of elements in the array has not yet been declared,
+ * zero is returned.
+ */
+ int array_size() const
+ {
+ return is_array() ? length : -1;
+ }
+
+private:
+ /**
+ * ralloc context for all glsl_type allocations
+ *
+ * Set on the first call to \c glsl_type::new.
+ */
+ static void *mem_ctx;
+
+ void init_ralloc_type_ctx(void);
+
+ /** Constructor for vector and matrix types */
+ glsl_type(GLenum gl_type,
+ glsl_base_type base_type, unsigned vector_elements,
+ unsigned matrix_columns, const char *name);
+
+ /** Constructor for sampler types */
+ glsl_type(GLenum gl_type,
+ enum glsl_sampler_dim dim, bool shadow, bool array,
+ unsigned type, const char *name);
+
+ /** Constructor for record types */
+ glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ const char *name);
+
+ /** Constructor for array types */
+ glsl_type(const glsl_type *array, unsigned length);
+
+ /** Hash table containing the known array types. */
+ static struct hash_table *array_types;
+
+ /** Hash table containing the known record types. */
+ static struct hash_table *record_types;
+
+ static int record_key_compare(const void *a, const void *b);
+ static unsigned record_key_hash(const void *key);
+
+ /**
+ * \name Pointers to various type singletons
+ */
+ /*@{*/
+ static const glsl_type _error_type;
+ static const glsl_type _void_type;
+ static const glsl_type _sampler3D_type;
+ static const glsl_type builtin_core_types[];
+ static const glsl_type builtin_structure_types[];
+ static const glsl_type builtin_110_deprecated_structure_types[];
+ static const glsl_type builtin_110_types[];
+ static const glsl_type builtin_120_types[];
+ static const glsl_type builtin_130_types[];
+ static const glsl_type builtin_ARB_texture_rectangle_types[];
+ static const glsl_type builtin_EXT_texture_array_types[];
+ static const glsl_type builtin_EXT_texture_buffer_object_types[];
+ /*@}*/
+
+ /**
+ * \name Methods to populate a symbol table with built-in types.
+ *
+ * \internal
+ * This is one of the truely annoying things about C++. Methods that are
+ * completely internal and private to a type still have to be advertised to
+ * the world in a public header file.
+ */
+ /*@{*/
+ static void generate_100ES_types(glsl_symbol_table *);
+ static void generate_110_types(glsl_symbol_table *);
+ static void generate_120_types(glsl_symbol_table *);
+ static void generate_130_types(glsl_symbol_table *);
+ static void generate_ARB_texture_rectangle_types(glsl_symbol_table *, bool);
+ static void generate_EXT_texture_array_types(glsl_symbol_table *, bool);
+ static void generate_OES_texture_3D_types(glsl_symbol_table *, bool);
+ /*@}*/
+
+ /**
+ * \name Friend functions.
+ *
+ * These functions are friends because they must have C linkage and the
+ * need to call various private methods or access various private static
+ * data.
+ */
+ /*@{*/
+ friend void _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *);
+ friend void _mesa_glsl_release_types(void);
+ /*@}*/
+};
+
+struct glsl_struct_field {
+ const struct glsl_type *type;
+ const char *name;
+};
+
+#endif /* GLSL_TYPES_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 11:54:50 +0000