mirror of https://gitlab.freedesktop.org/mesa/mesa
989 lines
26 KiB
C++
989 lines
26 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright © 2009 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#ifndef GLSL_TYPES_H
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#define GLSL_TYPES_H
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#include <string.h>
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#include <assert.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct _mesa_glsl_parse_state;
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struct glsl_symbol_table;
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extern void
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_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
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extern void
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_mesa_glsl_release_types(void);
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#ifdef __cplusplus
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}
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#endif
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enum glsl_base_type {
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/* Note: GLSL_TYPE_UINT, GLSL_TYPE_INT, and GLSL_TYPE_FLOAT must be 0, 1,
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* and 2 so that they will fit in the 2 bits of glsl_type::sampled_type.
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*/
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GLSL_TYPE_UINT = 0,
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GLSL_TYPE_INT,
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GLSL_TYPE_FLOAT,
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GLSL_TYPE_DOUBLE,
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GLSL_TYPE_BOOL,
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GLSL_TYPE_SAMPLER,
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GLSL_TYPE_IMAGE,
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GLSL_TYPE_ATOMIC_UINT,
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GLSL_TYPE_STRUCT,
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GLSL_TYPE_INTERFACE,
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GLSL_TYPE_ARRAY,
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GLSL_TYPE_VOID,
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GLSL_TYPE_SUBROUTINE,
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GLSL_TYPE_FUNCTION,
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GLSL_TYPE_ERROR
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};
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static inline bool glsl_base_type_is_64bit(enum glsl_base_type type)
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{
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return type == GLSL_TYPE_DOUBLE;
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}
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enum glsl_sampler_dim {
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GLSL_SAMPLER_DIM_1D = 0,
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GLSL_SAMPLER_DIM_2D,
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GLSL_SAMPLER_DIM_3D,
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GLSL_SAMPLER_DIM_CUBE,
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GLSL_SAMPLER_DIM_RECT,
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GLSL_SAMPLER_DIM_BUF,
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GLSL_SAMPLER_DIM_EXTERNAL,
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GLSL_SAMPLER_DIM_MS,
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GLSL_SAMPLER_DIM_SUBPASS, /* for vulkan input attachments */
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};
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enum glsl_interface_packing {
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GLSL_INTERFACE_PACKING_STD140,
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GLSL_INTERFACE_PACKING_SHARED,
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GLSL_INTERFACE_PACKING_PACKED,
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GLSL_INTERFACE_PACKING_STD430
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};
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enum glsl_matrix_layout {
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/**
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* The layout of the matrix is inherited from the object containing the
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* matrix (the top level structure or the uniform block).
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*/
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GLSL_MATRIX_LAYOUT_INHERITED,
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/**
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* Explicit column-major layout
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*
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* If a uniform block doesn't have an explicit layout set, it will default
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* to this layout.
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*/
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GLSL_MATRIX_LAYOUT_COLUMN_MAJOR,
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/**
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* Row-major layout
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*/
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GLSL_MATRIX_LAYOUT_ROW_MAJOR
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};
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enum {
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GLSL_PRECISION_NONE = 0,
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GLSL_PRECISION_HIGH,
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GLSL_PRECISION_MEDIUM,
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GLSL_PRECISION_LOW
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};
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#ifdef __cplusplus
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#include "GL/gl.h"
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#include "util/ralloc.h"
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#include "main/mtypes.h" /* for gl_texture_index, C++'s enum rules are broken */
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struct glsl_type {
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GLenum gl_type;
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glsl_base_type base_type;
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unsigned sampler_dimensionality:4; /**< \see glsl_sampler_dim */
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unsigned sampler_shadow:1;
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unsigned sampler_array:1;
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unsigned sampled_type:2; /**< Type of data returned using this
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* sampler or image. Only \c
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* GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
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* and \c GLSL_TYPE_UINT are valid.
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*/
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unsigned interface_packing:2;
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unsigned interface_row_major:1;
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/* Callers of this ralloc-based new need not call delete. It's
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* easier to just ralloc_free 'mem_ctx' (or any of its ancestors). */
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static void* operator new(size_t size)
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{
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mtx_lock(&glsl_type::mutex);
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/* mem_ctx should have been created by the static members */
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assert(glsl_type::mem_ctx != NULL);
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void *type;
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type = ralloc_size(glsl_type::mem_ctx, size);
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assert(type != NULL);
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mtx_unlock(&glsl_type::mutex);
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return type;
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}
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/* If the user *does* call delete, that's OK, we will just
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* ralloc_free in that case. */
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static void operator delete(void *type)
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{
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mtx_lock(&glsl_type::mutex);
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ralloc_free(type);
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mtx_unlock(&glsl_type::mutex);
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}
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/**
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* \name Vector and matrix element counts
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*
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* For scalars, each of these values will be 1. For non-numeric types
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* these will be 0.
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*/
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/*@{*/
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uint8_t vector_elements; /**< 1, 2, 3, or 4 vector elements. */
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uint8_t matrix_columns; /**< 1, 2, 3, or 4 matrix columns. */
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/*@}*/
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/**
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* For \c GLSL_TYPE_ARRAY, this is the length of the array. For
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* \c GLSL_TYPE_STRUCT or \c GLSL_TYPE_INTERFACE, it is the number of
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* elements in the structure and the number of values pointed to by
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* \c fields.structure (below).
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*/
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unsigned length;
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/**
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* Name of the data type
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*
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* Will never be \c NULL.
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*/
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const char *name;
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/**
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* Subtype of composite data types.
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*/
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union {
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const struct glsl_type *array; /**< Type of array elements. */
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struct glsl_function_param *parameters; /**< Parameters to function. */
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struct glsl_struct_field *structure; /**< List of struct fields. */
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} fields;
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/**
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* \name Pointers to various public type singletons
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*/
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/*@{*/
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#undef DECL_TYPE
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#define DECL_TYPE(NAME, ...) \
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static const glsl_type *const NAME##_type;
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#undef STRUCT_TYPE
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#define STRUCT_TYPE(NAME) \
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static const glsl_type *const struct_##NAME##_type;
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#include "compiler/builtin_type_macros.h"
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/*@}*/
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/**
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* Convenience accessors for vector types (shorter than get_instance()).
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* @{
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*/
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static const glsl_type *vec(unsigned components);
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static const glsl_type *dvec(unsigned components);
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static const glsl_type *ivec(unsigned components);
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static const glsl_type *uvec(unsigned components);
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static const glsl_type *bvec(unsigned components);
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/**@}*/
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/**
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* For numeric and boolean derived types returns the basic scalar type
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*
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* If the type is a numeric or boolean scalar, vector, or matrix type,
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* this function gets the scalar type of the individual components. For
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* all other types, including arrays of numeric or boolean types, the
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* error type is returned.
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*/
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const glsl_type *get_base_type() const;
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/**
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* Get the basic scalar type which this type aggregates.
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*
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* If the type is a numeric or boolean scalar, vector, or matrix, or an
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* array of any of those, this function gets the scalar type of the
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* individual components. For structs and arrays of structs, this function
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* returns the struct type. For samplers and arrays of samplers, this
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* function returns the sampler type.
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*/
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const glsl_type *get_scalar_type() const;
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/**
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* Get the instance of a built-in scalar, vector, or matrix type
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*/
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static const glsl_type *get_instance(unsigned base_type, unsigned rows,
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unsigned columns);
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/**
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* Get the instance of a sampler type
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*/
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static const glsl_type *get_sampler_instance(enum glsl_sampler_dim dim,
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bool shadow,
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bool array,
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glsl_base_type type);
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static const glsl_type *get_image_instance(enum glsl_sampler_dim dim,
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bool array, glsl_base_type type);
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/**
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* Get the instance of an array type
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*/
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static const glsl_type *get_array_instance(const glsl_type *base,
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unsigned elements);
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/**
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* Get the instance of a record type
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*/
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static const glsl_type *get_record_instance(const glsl_struct_field *fields,
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unsigned num_fields,
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const char *name);
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/**
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* Get the instance of an interface block type
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*/
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static const glsl_type *get_interface_instance(const glsl_struct_field *fields,
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unsigned num_fields,
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enum glsl_interface_packing packing,
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bool row_major,
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const char *block_name);
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/**
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* Get the instance of an subroutine type
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*/
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static const glsl_type *get_subroutine_instance(const char *subroutine_name);
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/**
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* Get the instance of a function type
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*/
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static const glsl_type *get_function_instance(const struct glsl_type *return_type,
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const glsl_function_param *parameters,
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unsigned num_params);
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/**
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* Get the type resulting from a multiplication of \p type_a * \p type_b
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*/
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static const glsl_type *get_mul_type(const glsl_type *type_a,
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const glsl_type *type_b);
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/**
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* Query the total number of scalars that make up a scalar, vector or matrix
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*/
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unsigned components() const
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{
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return vector_elements * matrix_columns;
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}
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/**
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* Calculate the number of components slots required to hold this type
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*
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* This is used to determine how many uniform or varying locations a type
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* might occupy.
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*/
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unsigned component_slots() const;
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/**
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* Calculate offset between the base location of the struct in
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* uniform storage and a struct member.
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* For the initial call, length is the index of the member to find the
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* offset for.
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*/
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unsigned record_location_offset(unsigned length) const;
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/**
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* Calculate the number of unique values from glGetUniformLocation for the
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* elements of the type.
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*
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* This is used to allocate slots in the UniformRemapTable, the amount of
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* locations may not match with actual used storage space by the driver.
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*/
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unsigned uniform_locations() const;
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/**
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* Used to count the number of varyings contained in the type ignoring
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* innermost array elements.
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*/
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unsigned varying_count() const;
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/**
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* Calculate the number of attribute slots required to hold this type
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*
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* This implements the language rules of GLSL 1.50 for counting the number
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* of slots used by a vertex attribute. It also determines the number of
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* varying slots the type will use up in the absence of varying packing
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* (and thus, it can be used to measure the number of varying slots used by
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* the varyings that are generated by lower_packed_varyings).
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*
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* For vertex shader attributes - doubles only take one slot.
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* For inter-shader varyings - dvec3/dvec4 take two slots.
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*/
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unsigned count_attribute_slots(bool is_vertex_input) const;
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/**
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* Alignment in bytes of the start of this type in a std140 uniform
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* block.
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*/
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unsigned std140_base_alignment(bool row_major) const;
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/** Size in bytes of this type in a std140 uniform block.
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*
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* Note that this is not GL_UNIFORM_SIZE (which is the number of
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* elements in the array)
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*/
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unsigned std140_size(bool row_major) const;
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/**
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* Alignment in bytes of the start of this type in a std430 shader
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* storage block.
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*/
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unsigned std430_base_alignment(bool row_major) const;
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/**
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* Calculate array stride in bytes of this type in a std430 shader storage
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* block.
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*/
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unsigned std430_array_stride(bool row_major) const;
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/**
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* Size in bytes of this type in a std430 shader storage block.
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*
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* Note that this is not GL_BUFFER_SIZE
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*/
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unsigned std430_size(bool row_major) const;
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/**
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* \brief Can this type be implicitly converted to another?
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*
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* \return True if the types are identical or if this type can be converted
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* to \c desired according to Section 4.1.10 of the GLSL spec.
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*
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* \verbatim
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* From page 25 (31 of the pdf) of the GLSL 1.50 spec, Section 4.1.10
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* Implicit Conversions:
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*
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* In some situations, an expression and its type will be implicitly
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* converted to a different type. The following table shows all allowed
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* implicit conversions:
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*
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* Type of expression | Can be implicitly converted to
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* --------------------------------------------------
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* int float
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* uint
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*
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* ivec2 vec2
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* uvec2
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*
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* ivec3 vec3
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* uvec3
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*
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* ivec4 vec4
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* uvec4
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*
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* There are no implicit array or structure conversions. For example,
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* an array of int cannot be implicitly converted to an array of float.
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* There are no implicit conversions between signed and unsigned
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* integers.
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* \endverbatim
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*/
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bool can_implicitly_convert_to(const glsl_type *desired,
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_mesa_glsl_parse_state *state) const;
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/**
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* Query whether or not a type is a scalar (non-vector and non-matrix).
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*/
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bool is_scalar() const
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{
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return (vector_elements == 1)
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&& (base_type >= GLSL_TYPE_UINT)
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&& (base_type <= GLSL_TYPE_BOOL);
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}
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/**
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* Query whether or not a type is a vector
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*/
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bool is_vector() const
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{
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return (vector_elements > 1)
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&& (matrix_columns == 1)
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&& (base_type >= GLSL_TYPE_UINT)
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&& (base_type <= GLSL_TYPE_BOOL);
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}
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/**
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* Query whether or not a type is a matrix
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*/
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bool is_matrix() const
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{
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/* GLSL only has float matrices. */
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return (matrix_columns > 1) && (base_type == GLSL_TYPE_FLOAT || base_type == GLSL_TYPE_DOUBLE);
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}
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/**
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* Query whether or not a type is a non-array numeric type
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*/
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bool is_numeric() const
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{
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return (base_type >= GLSL_TYPE_UINT) && (base_type <= GLSL_TYPE_DOUBLE);
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}
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/**
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* Query whether or not a type is an integral type
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*/
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bool is_integer() const
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{
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return (base_type == GLSL_TYPE_UINT) || (base_type == GLSL_TYPE_INT);
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}
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/**
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* Query whether or not type is an integral type, or for struct, interface
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* and array types, contains an integral type.
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*/
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bool contains_integer() const;
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/**
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* Query whether or not type is a double type, or for struct, interface and
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* array types, contains a double type.
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*/
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bool contains_double() const;
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/**
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* Query whether or not a type is a float type
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*/
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bool is_float() const
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{
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return base_type == GLSL_TYPE_FLOAT;
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}
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/**
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* Query whether or not a type is a double type
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*/
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bool is_double() const
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{
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return base_type == GLSL_TYPE_DOUBLE;
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}
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/**
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* Query whether a 64-bit type takes two slots.
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*/
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bool is_dual_slot() const
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{
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return is_64bit() && vector_elements > 2;
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}
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/**
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* Query whether or not a type is 64-bit
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*/
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bool is_64bit() const
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{
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return glsl_base_type_is_64bit(base_type);
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}
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/**
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* Query whether or not a type is a non-array boolean type
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*/
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bool is_boolean() const
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{
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return base_type == GLSL_TYPE_BOOL;
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}
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/**
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* Query whether or not a type is a sampler
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*/
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bool is_sampler() const
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{
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return base_type == GLSL_TYPE_SAMPLER;
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}
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/**
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* Query whether or not type is a sampler, or for struct, interface and
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* array types, contains a sampler.
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*/
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bool contains_sampler() const;
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/**
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* Get the Mesa texture target index for a sampler type.
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*/
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gl_texture_index sampler_index() const;
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/**
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* Query whether or not type is an image, or for struct, interface and
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* array types, contains an image.
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*/
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bool contains_image() const;
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/**
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* Query whether or not a type is an image
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*/
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bool is_image() const
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{
|
|
return base_type == GLSL_TYPE_IMAGE;
|
|
}
|
|
|
|
/**
|
|
* Query whether or not a type is an array
|
|
*/
|
|
bool is_array() const
|
|
{
|
|
return base_type == GLSL_TYPE_ARRAY;
|
|
}
|
|
|
|
bool is_array_of_arrays() const
|
|
{
|
|
return is_array() && fields.array->is_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 an interface
|
|
*/
|
|
bool is_interface() const
|
|
{
|
|
return base_type == GLSL_TYPE_INTERFACE;
|
|
}
|
|
|
|
/**
|
|
* 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 if a type is unnamed/anonymous (named by the parser)
|
|
*/
|
|
|
|
bool is_subroutine() const
|
|
{
|
|
return base_type == GLSL_TYPE_SUBROUTINE;
|
|
}
|
|
bool contains_subroutine() const;
|
|
|
|
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
|
|
{
|
|
const glsl_type *t = this;
|
|
|
|
while (t->is_array())
|
|
t = t->fields.array;
|
|
|
|
return t;
|
|
}
|
|
|
|
/**
|
|
* Return the total number of elements in an array including the elements
|
|
* in arrays of arrays.
|
|
*/
|
|
unsigned arrays_of_arrays_size() const
|
|
{
|
|
if (!is_array())
|
|
return 0;
|
|
|
|
unsigned size = length;
|
|
const glsl_type *base_type = fields.array;
|
|
|
|
while (base_type->is_array()) {
|
|
size = size * base_type->length;
|
|
base_type = base_type->fields.array;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* 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 * fields.array->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
|
|
*
|
|
* \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 field 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;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
* The option to not match locations is to deal with places where the
|
|
* same struct is defined in a block which has a location set on it.
|
|
*/
|
|
bool record_compare(const glsl_type *b, bool match_locations = true) const;
|
|
|
|
/**
|
|
* Get the type interface packing.
|
|
*/
|
|
enum glsl_interface_packing get_interface_packing() const
|
|
{
|
|
return (enum glsl_interface_packing)interface_packing;
|
|
}
|
|
|
|
/**
|
|
* Check if the type interface is row major
|
|
*/
|
|
bool get_interface_row_major() const
|
|
{
|
|
return (bool) interface_row_major;
|
|
}
|
|
|
|
private:
|
|
|
|
static mtx_t mutex;
|
|
|
|
/**
|
|
* 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 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);
|
|
|
|
/** 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,
|
|
bool row_major, const char *name);
|
|
|
|
/** Constructor for interface types */
|
|
glsl_type(const glsl_type *return_type,
|
|
const glsl_function_param *params, unsigned num_params);
|
|
|
|
/** Constructor for array types */
|
|
glsl_type(const glsl_type *array, unsigned length);
|
|
|
|
/** Constructor for subroutine types */
|
|
glsl_type(const char *name);
|
|
|
|
/** 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;
|
|
|
|
/** Hash table containing the known interface types. */
|
|
static struct hash_table *interface_types;
|
|
|
|
/** Hash table containing the known subroutine types. */
|
|
static struct hash_table *subroutine_types;
|
|
|
|
/** Hash table containing the known function types. */
|
|
static struct hash_table *function_types;
|
|
|
|
static bool record_key_compare(const void *a, const void *b);
|
|
static unsigned record_key_hash(const void *key);
|
|
|
|
/**
|
|
* \name Built-in type flyweights
|
|
*/
|
|
/*@{*/
|
|
#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 "compiler/builtin_type_macros.h"
|
|
/*@}*/
|
|
|
|
/**
|
|
* \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);
|
|
/*@}*/
|
|
};
|
|
|
|
#undef DECL_TYPE
|
|
#undef STRUCT_TYPE
|
|
#endif /* __cplusplus */
|
|
|
|
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, members may have an explicit byte offset
|
|
* specified; -1 otherwise. Also used for xfb_offset layout qualifier.
|
|
*
|
|
* Unless used for xfb_offset this field is ignored for structs.
|
|
*/
|
|
int offset;
|
|
|
|
/**
|
|
* For interface blocks, members may define a transform feedback buffer;
|
|
* -1 otherwise.
|
|
*/
|
|
int xfb_buffer;
|
|
|
|
/**
|
|
* For interface blocks, members may define a transform feedback stride;
|
|
* -1 otherwise.
|
|
*/
|
|
int xfb_stride;
|
|
|
|
/**
|
|
* 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, 1 if this variable is a per-patch input or output
|
|
* (as in ir_variable::patch). 0 otherwise.
|
|
*/
|
|
unsigned patch:1;
|
|
|
|
/**
|
|
* Precision qualifier
|
|
*/
|
|
unsigned precision:2;
|
|
|
|
/**
|
|
* Image qualifiers, applicable to buffer variables defined in shader
|
|
* storage buffer objects (SSBOs)
|
|
*/
|
|
unsigned image_read_only:1;
|
|
unsigned image_write_only:1;
|
|
unsigned image_coherent:1;
|
|
unsigned image_volatile:1;
|
|
unsigned image_restrict:1;
|
|
|
|
/**
|
|
* Any of the xfb_* qualifiers trigger the shader to be in transform
|
|
* feedback mode so we need to keep track of whether the buffer was
|
|
* explicitly set or if its just been assigned the default global value.
|
|
*/
|
|
unsigned explicit_xfb_buffer:1;
|
|
|
|
unsigned implicit_sized_array:1;
|
|
#ifdef __cplusplus
|
|
glsl_struct_field(const struct glsl_type *_type, const char *_name)
|
|
: type(_type), name(_name), location(-1), offset(0), xfb_buffer(0),
|
|
xfb_stride(0), interpolation(0), centroid(0),
|
|
sample(0), matrix_layout(GLSL_MATRIX_LAYOUT_INHERITED), patch(0),
|
|
precision(GLSL_PRECISION_NONE), image_read_only(0), image_write_only(0),
|
|
image_coherent(0), image_volatile(0), image_restrict(0),
|
|
explicit_xfb_buffer(0), implicit_sized_array(0)
|
|
{
|
|
/* empty */
|
|
}
|
|
|
|
glsl_struct_field()
|
|
{
|
|
/* empty */
|
|
}
|
|
#endif
|
|
};
|
|
|
|
struct glsl_function_param {
|
|
const struct glsl_type *type;
|
|
|
|
bool in;
|
|
bool out;
|
|
};
|
|
|
|
static inline unsigned int
|
|
glsl_align(unsigned int a, unsigned int align)
|
|
{
|
|
return (a + align - 1) / align * align;
|
|
}
|
|
|
|
#endif /* GLSL_TYPES_H */
|