#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 "GL/gl.h"
-#include <talloc.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);
-#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
+#ifdef __cplusplus
+}
+#endif
+
+enum glsl_base_type {
+ GLSL_TYPE_UINT = 0,
+ GLSL_TYPE_INT,
+ GLSL_TYPE_FLOAT,
+ GLSL_TYPE_BOOL,
+ GLSL_TYPE_SAMPLER,
+ GLSL_TYPE_IMAGE,
+ GLSL_TYPE_ATOMIC_UINT,
+ 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,
+ GLSL_SAMPLER_DIM_MS
+};
+
+enum glsl_interface_packing {
+ GLSL_INTERFACE_PACKING_STD140,
+ GLSL_INTERFACE_PACKING_SHARED,
+ GLSL_INTERFACE_PACKING_PACKED
+};
+
+enum glsl_matrix_layout {
+ /**
+ * The layout of the matrix is inherited from the object containing the
+ * matrix (the top level structure or the uniform block).
+ */
+ GLSL_MATRIX_LAYOUT_INHERITED,
+
+ /**
+ * Explicit column-major layout
+ *
+ * If a uniform block doesn't have an explicit layout set, it will default
+ * to this layout.
+ */
+ GLSL_MATRIX_LAYOUT_COLUMN_MAJOR,
+
+ /**
+ * Row-major layout
+ */
+ GLSL_MATRIX_LAYOUT_ROW_MAJOR
};
+#ifdef __cplusplus
+#include "GL/gl.h"
+#include "util/ralloc.h"
struct glsl_type {
GLenum gl_type;
- unsigned base_type:4;
+ 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,
+ unsigned sampler_type:2; /**< Type of data returned using this
+ * sampler or image. 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 'mem_ctx' (or any of its ancestors). */
+ /* 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 = talloc_init("glsl_type");
- assert(glsl_type::mem_ctx != NULL);
- }
+ mtx_lock(&glsl_type::mutex);
+
+ /* mem_ctx should have been created by the static members */
+ assert(glsl_type::mem_ctx != NULL);
void *type;
- type = talloc_size(glsl_type::mem_ctx, size);
+ type = ralloc_size(glsl_type::mem_ctx, size);
assert(type != NULL);
+ mtx_unlock(&glsl_type::mutex);
+
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);
+ mtx_lock(&glsl_type::mutex);
+ ralloc_free(type);
+ mtx_unlock(&glsl_type::mutex);
}
/**
* 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. */
+ uint8_t vector_elements; /**< 1, 2, 3, or 4 vector elements. */
+ uint8_t matrix_columns; /**< 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.
+ * For \c GLSL_TYPE_ARRAY, this is the length of the array. For
+ * \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).
*/
- const char *name;
+ unsigned length;
/**
- * 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).
+ * Name of the data type
*
- * 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).
+ * Will never be \c NULL.
*/
- unsigned length;
+ const char *name;
/**
* Subtype of composite data types.
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 int_type;
- static const glsl_type *const ivec4_type;
- static const glsl_type *const uint_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
+ * For numeric and boolean derived 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
*/
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
*
static const glsl_type *get_record_instance(const glsl_struct_field *fields,
unsigned num_fields,
const char *name);
+
/**
- * Generate the constructor for this type and add it to the symbol table
+ * 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 *block_name);
/**
* Query the total number of scalars that make up a scalar, vector or matrix
*/
unsigned component_slots() const;
+ /**
+ * Calculate the number of unique values from glGetUniformLocation for the
+ * elements of the type.
+ *
+ * This is used to allocate slots in the UniformRemapTable, the amount of
+ * locations may not match with actual used storage space by the driver.
+ */
+ unsigned uniform_locations() 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,
+ _mesa_glsl_parse_state *state) 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 type is an image, or for struct and array
+ * types, contains an image.
+ */
+ bool contains_image() const;
+
+ /**
+ * Query whether or not a type is an image
+ */
+ bool is_image() const
+ {
+ return base_type == GLSL_TYPE_IMAGE;
+ }
+
/**
* 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 base_type == GLSL_TYPE_ERROR;
}
+ /**
+ * Query if a type is unnamed/anonymous (named by the parser)
+ */
+ bool is_anonymous() const
+ {
+ return !strncmp(name, "#anon", 5);
+ }
+
+ /**
+ * Get the type stripped of any arrays
+ *
+ * \return
+ * Pointer to the type of elements of the first non-array type for array
+ * types, or pointer to itself for non-array types.
+ */
+ const glsl_type *without_array() const
+ {
+ return this->is_array() ? this->fields.array : this;
+ }
+
+ /**
+ * Return the amount of atomic counter storage required for a type.
+ */
+ unsigned atomic_size() const
+ {
+ if (base_type == GLSL_TYPE_ATOMIC_UINT)
+ return ATOMIC_COUNTER_SIZE;
+ else if (is_array())
+ return length * element_type()->atomic_size();
+ else
+ return 0;
+ }
+
+ /**
+ * Return whether a type contains any atomic counters.
+ */
+ bool contains_atomic() const
+ {
+ return atomic_size() > 0;
+ }
+
+ /**
+ * Return whether a type contains any opaque types.
+ */
+ bool contains_opaque() const;
+
/**
* Query the full type of a matrix row
*
: error_type;
}
-
/**
* Get the type of a structure field
*
*/
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 is_array() ? length : -1;
}
+ /**
+ * Query whether the array size for all dimensions has been declared.
+ */
+ bool is_unsized_array() const
+ {
+ return is_array() && length == 0;
+ }
+
+ /**
+ * Return the number of coordinate components needed for this
+ * sampler or image 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 coordinate_components() const;
+
+ /**
+ * Compare a record type against another record type.
+ *
+ * This is useful for matching record types declared across shader stages.
+ */
+ bool record_compare(const glsl_type *b) const;
+
private:
+
+ static mtx_t mutex;
+
/**
- * talloc context for all glsl_type allocations
+ * ralloc context for all glsl_type allocations
*
* Set on the first call to \c glsl_type::new.
*/
static void *mem_ctx;
- void init_talloc_type_ctx(void);
+ void init_ralloc_type_ctx(void);
/** Constructor for vector and matrix types */
glsl_type(GLenum gl_type,
- unsigned base_type, unsigned vector_elements,
+ glsl_base_type base_type, unsigned vector_elements,
unsigned matrix_columns, const char *name);
- /** Constructor for sampler types */
- glsl_type(GLenum gl_type,
+ /** Constructor for sampler or image types */
+ glsl_type(GLenum gl_type, glsl_base_type base_type,
enum glsl_sampler_dim dim, bool shadow, bool array,
unsigned type, const char *name);
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 builtin_core_types[];
- static const glsl_type builtin_structure_types[];
- static const glsl_type builtin_110_deprecated_structure_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_110_types(class glsl_symbol_table *);
- static void generate_120_types(class glsl_symbol_table *);
- static void generate_130_types(class glsl_symbol_table *);
- static void generate_ARB_texture_rectangle_types(class glsl_symbol_table *,
- bool);
- static void generate_EXT_texture_array_types(class 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;
+
+ /**
+ * 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;
+
+ /**
+ * For interface blocks, the interpolation mode (as in
+ * ir_variable::interpolation). 0 otherwise.
+ */
+ unsigned interpolation:2;
+
+ /**
+ * For interface blocks, 1 if this variable uses centroid interpolation (as
+ * in ir_variable::centroid). 0 otherwise.
+ */
+ unsigned centroid:1;
+
+ /**
+ * For interface blocks, 1 if this variable uses sample interpolation (as
+ * in ir_variable::sample). 0 otherwise.
+ */
+ unsigned sample:1;
+
+ /**
+ * Layout of the matrix. Uses glsl_matrix_layout values.
+ */
+ unsigned matrix_layout:2;
+
+ /**
+ * For interface blocks, it has a value if this variable uses multiple vertex
+ * streams (as in ir_variable::stream). -1 otherwise.
+ */
+ int stream;
};
+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