#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 "GL/gl.h"
-}
-
-#include "ralloc.h"
+#endif
struct _mesa_glsl_parse_state;
struct glsl_symbol_table;
-extern "C" void
+extern void
_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
-extern "C" void
+extern void
_mesa_glsl_release_types(void);
+#ifdef __cplusplus
+}
+#endif
+
enum glsl_base_type {
GLSL_TYPE_UINT = 0,
GLSL_TYPE_INT,
GLSL_TYPE_BOOL,
GLSL_TYPE_SAMPLER,
GLSL_TYPE_STRUCT,
+ GLSL_TYPE_INTERFACE,
GLSL_TYPE_ARRAY,
GLSL_TYPE_VOID,
GLSL_TYPE_ERROR
GLSL_SAMPLER_DIM_3D,
GLSL_SAMPLER_DIM_CUBE,
GLSL_SAMPLER_DIM_RECT,
- GLSL_SAMPLER_DIM_BUF
+ GLSL_SAMPLER_DIM_BUF,
+ GLSL_SAMPLER_DIM_EXTERNAL,
+ GLSL_SAMPLER_DIM_MS
+};
+
+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 {
GLenum gl_type;
* only \c GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
* and \c GLSL_TYPE_UINT are valid.
*/
+ unsigned interface_packing:2;
/* Callers of this ralloc-based new need not call delete. It's
* easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */
/**
* Name of the data type
*
- * This may be \c NULL for anonymous structures, for arrays, or for
- * function types.
+ * Will never be \c NULL.
*/
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).
+ * \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;
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;
+#undef DECL_TYPE
+#define DECL_TYPE(NAME, ...) \
+ static const glsl_type *const NAME##_type;
+#undef STRUCT_TYPE
+#define STRUCT_TYPE(NAME) \
+ static const glsl_type *const struct_##NAME##_type;
+#include "builtin_type_macros.h"
/*@}*/
+ /**
+ * Convenience accessors for vector types (shorter than get_instance()).
+ * @{
+ */
+ static const glsl_type *vec(unsigned components);
+ static const glsl_type *ivec(unsigned components);
+ static const glsl_type *uvec(unsigned components);
+ static const glsl_type *bvec(unsigned components);
+ /**@}*/
/**
* 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
*
unsigned num_fields,
const char *name);
+ /**
+ * Get the instance of an interface block type
+ */
+ static const glsl_type *get_interface_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ enum glsl_interface_packing packing,
+ const char *block_name);
+
/**
* Query the total number of scalars that make up a scalar, vector or matrix
*/
*/
unsigned component_slots() const;
+ /**
+ * Calculate the number of attribute slots required to hold this type
+ *
+ * This implements the language rules of GLSL 1.50 for counting the number
+ * of slots used by a vertex attribute. It also determines the number of
+ * varying slots the type will use up in the absence of varying packing
+ * (and thus, it can be used to measure the number of varying slots used by
+ * the varyings that are generated by lower_packed_varyings).
+ */
+ unsigned count_attribute_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
*/
*/
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.
*/
return is_array() ? length : -1;
}
+ /**
+ * Return the number of coordinate components needed for this sampler type.
+ *
+ * This is based purely on the sampler's dimensionality. For example, this
+ * returns 1 for sampler1D, and 3 for sampler2DArray.
+ *
+ * Note that this is often different than actual coordinate type used in
+ * a texturing built-in function, since those pack additional values (such
+ * as the shadow comparitor or projector) into the coordinate type.
+ */
+ int sampler_coordinate_components() const;
+
private:
/**
* ralloc context for all glsl_type allocations
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 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 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.
+ * \name Built-in type flyweights
*/
/*@{*/
- 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);
+#undef DECL_TYPE
+#define DECL_TYPE(NAME, ...) static const glsl_type _##NAME##_type;
+#undef STRUCT_TYPE
+#define STRUCT_TYPE(NAME) static const glsl_type _struct_##NAME##_type;
+#include "builtin_type_macros.h"
/*@}*/
/**
struct glsl_struct_field {
const struct glsl_type *type;
const char *name;
+ bool row_major;
+
+ /**
+ * For interface blocks, gl_varying_slot corresponding to the input/output
+ * if this is a built-in input/output (i.e. a member of the built-in
+ * gl_PerVertex interface block); -1 otherwise.
+ *
+ * Ignored for structs.
+ */
+ int location;
};
+static inline unsigned int
+glsl_align(unsigned int a, unsigned int align)
+{
+ return (a + align - 1) / align * align;
+}
+
+#undef DECL_TYPE
+#undef STRUCT_TYPE
+#endif /* __cplusplus */
+
#endif /* GLSL_TYPES_H */
projects / mesa.git / blobdiff