X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fglsl%2Fglsl_types.h;h=fdb1f3a6efbf0c099e24e99208b53cd9adc8bffc;hb=8f00a77fbc611f472ffda7a8181950519cc71ccb;hp=61bf5e0cfd24779fee3913817214bf6fd13d1abd;hpb=b922a0ce12916a91cfc3e56714913fcf63279ff2;p=mesa.git diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h index 61bf5e0cfd2..fdb1f3a6efb 100644 --- a/src/glsl/glsl_types.h +++ b/src/glsl/glsl_types.h @@ -28,29 +28,34 @@ #include #include +#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_FLOAT, GLSL_TYPE_BOOL, GLSL_TYPE_SAMPLER, + GLSL_TYPE_ATOMIC_UINT, GLSL_TYPE_STRUCT, + GLSL_TYPE_INTERFACE, GLSL_TYPE_ARRAY, GLSL_TYPE_VOID, GLSL_TYPE_ERROR @@ -62,21 +67,33 @@ enum glsl_sampler_dim { 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; 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 ralloc-based new need not call delete. It's * easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */ @@ -116,15 +133,15 @@ struct glsl_type { /** * 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; @@ -137,35 +154,28 @@ struct glsl_type { 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 @@ -177,6 +187,17 @@ struct glsl_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 * @@ -208,6 +229,14 @@ struct glsl_type { 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 */ @@ -224,6 +253,66 @@ struct glsl_type { */ 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). @@ -271,6 +360,12 @@ struct glsl_type { 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 */ @@ -295,6 +390,17 @@ struct glsl_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 */ @@ -311,6 +417,14 @@ struct glsl_type { 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. */ @@ -327,6 +441,32 @@ struct glsl_type { return base_type == GLSL_TYPE_ERROR; } + /** + * 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(); + } + + /** + * Return whether a type contains any opaque types. + */ + bool contains_opaque() const; + /** * Query the full type of a matrix row * @@ -355,7 +495,6 @@ struct glsl_type { : error_type; } - /** * Get the type of a structure field * @@ -365,13 +504,11 @@ struct glsl_type { */ 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 * @@ -385,6 +522,26 @@ struct glsl_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 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 @@ -409,6 +566,10 @@ private: 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); @@ -418,41 +579,21 @@ private: /** 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 + * \name Built-in type flyweights */ /*@{*/ - 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_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); +#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" /*@}*/ /** @@ -471,6 +612,38 @@ private: 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; + + /** + * 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; }; +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 */