#ifndef GLSL_TYPES_H
#define GLSL_TYPES_H
-#include <cstring>
-#include <cassert>
+#include <string.h>
+#include <assert.h>
+#include "main/mtypes.h" /* for gl_texture_index, C++'s enum rules are broken */
+#ifdef __cplusplus
extern "C" {
-#include <talloc.h>
+#endif
+
+struct _mesa_glsl_parse_state;
+struct glsl_symbol_table;
+
+extern void
+_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
+
+extern void
+_mesa_glsl_release_types(void);
+
+#ifdef __cplusplus
}
+#endif
-#define GLSL_TYPE_UINT 0
-#define GLSL_TYPE_INT 1
-#define GLSL_TYPE_FLOAT 2
-#define GLSL_TYPE_BOOL 3
-#define GLSL_TYPE_SAMPLER 4
-#define GLSL_TYPE_STRUCT 5
-#define GLSL_TYPE_ARRAY 6
-#define GLSL_TYPE_FUNCTION 7
-#define GLSL_TYPE_VOID 8
-#define GLSL_TYPE_ERROR 9
+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_INTERFACE,
+ GLSL_TYPE_ARRAY,
+ GLSL_TYPE_VOID,
+ GLSL_TYPE_ERROR
+};
enum glsl_sampler_dim {
GLSL_SAMPLER_DIM_1D = 0,
GLSL_SAMPLER_DIM_3D,
GLSL_SAMPLER_DIM_CUBE,
GLSL_SAMPLER_DIM_RECT,
- GLSL_SAMPLER_DIM_BUF
+ GLSL_SAMPLER_DIM_BUF,
+ GLSL_SAMPLER_DIM_EXTERNAL
};
+enum glsl_interface_packing {
+ GLSL_INTERFACE_PACKING_STD140,
+ GLSL_INTERFACE_PACKING_SHARED,
+ GLSL_INTERFACE_PACKING_PACKED
+};
+
+#ifdef __cplusplus
+#include "GL/gl.h"
+#include "ralloc.h"
struct glsl_type {
- unsigned base_type:4;
+ GLenum gl_type;
+ glsl_base_type base_type;
- unsigned sampler_dimensionality:3;
+ 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.
*/
+ unsigned interface_packing:2;
- /* Callers of this talloc-based new need not call delete. It's
- * easier to just talloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
+ /* 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 = talloc_size(ctx, size);
+ 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
- * talloc_free in that case. */
+ * ralloc_free in that case. */
static void operator delete(void *type)
{
- talloc_free(type);
+ ralloc_free(type);
}
/**
/**
* 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).
- *
- * For \c GLSL_TYPE_FUNCTION, it is the number of parameters to the
- * function. The return value from a function is implicitly the first
- * parameter. The types of the parameters are stored in
- * \c fields.parameters (below).
+ * \c GLSL_TYPE_STRUCT or \c GLSL_TYPE_INTERFACE, it is the number of
+ * elements in the structure and the number of values pointed to by
+ * \c fields.structure (below).
*/
unsigned length;
union {
const struct glsl_type *array; /**< Type of array elements. */
const struct glsl_type *parameters; /**< Parameters to function. */
- const struct glsl_struct_field *structure;/**< List of struct fields. */
+ struct glsl_struct_field *structure; /**< List of struct fields. */
} fields;
*/
/*@{*/
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 ivec2_type;
+ static const glsl_type *const ivec3_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 bvec2_type;
+ static const glsl_type *const bvec3_type;
+ static const glsl_type *const bvec4_type;
static const glsl_type *const mat2_type;
static const glsl_type *const mat2x3_type;
static const glsl_type *const mat2x4_type;
/*@}*/
- glsl_type(unsigned base_type, unsigned vector_elements,
- unsigned matrix_columns, const char *name) :
- base_type(base_type),
- sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
- sampler_type(0),
- vector_elements(vector_elements), matrix_columns(matrix_columns),
- name(name),
- length(0)
- {
- /* Neither dimension is zero or both dimensions are zero.
- */
- assert((vector_elements == 0) == (matrix_columns == 0));
- memset(& fields, 0, sizeof(fields));
- }
-
- glsl_type(enum glsl_sampler_dim dim, bool shadow, bool array,
- unsigned type, const char *name) :
- base_type(GLSL_TYPE_SAMPLER),
- sampler_dimensionality(dim), sampler_shadow(shadow),
- sampler_array(array), sampler_type(type),
- vector_elements(0), matrix_columns(0),
- name(name),
- length(0)
- {
- memset(& fields, 0, sizeof(fields));
- }
-
- 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),
- name(name),
- length(num_fields)
- {
- this->fields.structure = fields;
- }
-
/**
* For numeric and boolean derrived types returns the basic scalar type
*
*/
const glsl_type *get_base_type() const;
+ /**
+ * Get the basic scalar type which this type aggregates.
+ *
+ * If the type is a numeric or boolean scalar, vector, or matrix, or an
+ * array of any of those, this function gets the scalar type of the
+ * individual components. For structs and arrays of structs, this function
+ * returns the struct type. For samplers and arrays of samplers, this
+ * function returns the sampler type.
+ */
+ const glsl_type *get_scalar_type() const;
+
/**
* Query the type of elements in an array
*
/**
* Get the instance of an array type
*/
- static const glsl_type *get_array_instance(void *ctx,
- const glsl_type *base,
+ static const glsl_type *get_array_instance(const glsl_type *base,
unsigned elements);
/**
- * Generate the constructor for this type and add it to the symbol table
+ * 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);
+
+ /**
+ * Get the instance of an interface block type
*/
- class ir_function *generate_constructor(class glsl_symbol_table *) const;
+ static const glsl_type *get_interface_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ enum glsl_interface_packing packing,
+ const char *name);
/**
* Query the total number of scalars that make up a scalar, vector or matrix
*/
unsigned component_slots() const;
+ /**
+ * Alignment in bytes of the start of this type in a std140 uniform
+ * block.
+ */
+ unsigned std140_base_alignment(bool row_major) const;
+
+ /** Size in bytes of this type in a std140 uniform block.
+ *
+ * Note that this is not GL_UNIFORM_SIZE (which is the number of
+ * elements in the array)
+ */
+ unsigned std140_size(bool row_major) const;
+
+ /**
+ * \brief Can this type be implicitly converted to another?
+ *
+ * \return True if the types are identical or if this type can be converted
+ * to \c desired according to Section 4.1.10 of the GLSL spec.
+ *
+ * \verbatim
+ * From page 25 (31 of the pdf) of the GLSL 1.50 spec, Section 4.1.10
+ * Implicit Conversions:
+ *
+ * In some situations, an expression and its type will be implicitly
+ * converted to a different type. The following table shows all allowed
+ * implicit conversions:
+ *
+ * Type of expression | Can be implicitly converted to
+ * --------------------------------------------------
+ * int float
+ * uint
+ *
+ * ivec2 vec2
+ * uvec2
+ *
+ * ivec3 vec3
+ * uvec3
+ *
+ * ivec4 vec4
+ * uvec4
+ *
+ * There are no implicit array or structure conversions. For example,
+ * an array of int cannot be implicitly converted to an array of float.
+ * There are no implicit conversions between signed and unsigned
+ * integers.
+ * \endverbatim
+ */
+ bool can_implicitly_convert_to(const glsl_type *desired) const;
/**
* Query whether or not a type is a scalar (non-vector and non-matrix).
return (base_type == GLSL_TYPE_UINT) || (base_type == GLSL_TYPE_INT);
}
+ /**
+ * Query whether or not type is an integral type, or for struct and array
+ * types, contains an integral type.
+ */
+ bool contains_integer() const;
+
/**
* Query whether or not a type is a float type
*/
return base_type == GLSL_TYPE_SAMPLER;
}
+ /**
+ * Query whether or not type is a sampler, or for struct and array
+ * types, contains a sampler.
+ */
+ bool contains_sampler() const;
+
+ /**
+ * Get the Mesa texture target index for a sampler type.
+ */
+ gl_texture_index sampler_index() const;
+
/**
* Query whether or not a type is an array
*/
return base_type == GLSL_TYPE_STRUCT;
}
+ /**
+ * Query whether or not a type is an interface
+ */
+ bool is_interface() const
+ {
+ return base_type == GLSL_TYPE_INTERFACE;
+ }
+
/**
* Query whether or not a type is the void type singleton.
*/
private:
/**
- * Constructor for array types
+ * ralloc context for all glsl_type allocations
+ *
+ * Set on the first call to \c glsl_type::new.
*/
- glsl_type(void *ctx, const glsl_type *array, unsigned length);
+ 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 interface types */
+ glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ enum glsl_interface_packing packing, 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;
- static int array_key_compare(const void *a, const void *b);
- static unsigned array_key_hash(const void *key);
+ /** Hash table containing the known record types. */
+ static struct hash_table *record_types;
+
+ /** Hash table containing the known interface types. */
+ static struct hash_table *interface_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 _samplerCubeShadow_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_140_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[];
+ static const glsl_type builtin_OES_EGL_image_external_types[];
+ static const glsl_type builtin_ARB_texture_cube_map_array_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_300ES_types(glsl_symbol_table *);
+ static void generate_110_types(glsl_symbol_table *, bool add_deprecated,
+ bool skip_1d);
+ static void generate_120_types(glsl_symbol_table *, bool add_deprecated,
+ bool skip_1d);
+ static void generate_130_types(glsl_symbol_table *, bool add_deprecated,
+ bool skip_1d);
+ static void generate_140_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);
+ static void generate_OES_EGL_image_external_types(glsl_symbol_table *, bool);
+ static void generate_ARB_texture_cube_map_array_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;
+ bool row_major;
};
-struct _mesa_glsl_parse_state;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern void
-_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
-
-extern void
-_mesa_glsl_initialize_constructors(struct exec_list *instructions,
- struct _mesa_glsl_parse_state *state);
-
-#ifdef __cplusplus
+static inline unsigned int
+glsl_align(unsigned int a, unsigned int align)
+{
+ return (a + align - 1) / align * align;
}
-#endif
+
+#endif /* __cplusplus */
#endif /* GLSL_TYPES_H */
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