WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/Mesa/src/glsl/ir_uniform.h

Rev	Author	Line No.	Line
4358	Serge	1	/*
		2	* Copyright © 2011 Intel Corporation
		3	*
		4	* Permission is hereby granted, free of charge, to any person obtaining a
		5	* copy of this software and associated documentation files (the "Software"),
		6	* to deal in the Software without restriction, including without limitation
		7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
		8	* and/or sell copies of the Software, and to permit persons to whom the
		9	* Software is furnished to do so, subject to the following conditions:
		10	*
		11	* The above copyright notice and this permission notice (including the next
		12	* paragraph) shall be included in all copies or substantial portions of the
		13	* Software.
		14	*
		15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
		18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
		19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
		20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
		21	* DEALINGS IN THE SOFTWARE.
		22	*/
		23
		24	#pragma once
		25	#ifndef IR_UNIFORM_H
		26	#define IR_UNIFORM_H
		27
		28
		29	/* stdbool.h is necessary because this file is included in both C and C++ code.
		30	*/
		31	#include
		32
		33	#include "program/prog_parameter.h" /* For union gl_constant_value. */
		34
		35
		36	#ifdef __cplusplus
		37	extern "C" {
		38	#endif
		39
		40	enum gl_uniform_driver_format {
		41	uniform_native = 0, /*< Store data in the native format. /
		42	uniform_int_float, /*< Store integer data as floats. /
		43	uniform_bool_float, /*< Store boolean data as floats. /
		44
		45	/**
		46	* Store boolean data as integer using 1 for \c true.
		47	*/
		48	uniform_bool_int_0_1,
		49
		50	/**
		51	* Store boolean data as integer using ~0 for \c true.
		52	*/
		53	uniform_bool_int_0_not0
		54	};
		55
		56	struct gl_uniform_driver_storage {
		57	/**
		58	* Number of bytes from one array element to the next.
		59	*/
		60	uint8_t element_stride;
		61
		62	/**
		63	* Number of bytes from one vector in a matrix to the next.
		64	*/
		65	uint8_t vector_stride;
		66
		67	/**
		68	* Base format of the stored data.
		69	*
		70	* This field must have a value from \c GLSL_TYPE_UINT through \c
		71	* GLSL_TYPE_SAMPLER.
		72	*/
		73	uint8_t format;
		74
		75	/**
		76	* Pointer to the base of the data.
		77	*/
		78	void *data;
		79	};
		80
		81	struct gl_uniform_storage {
		82	char *name;
		83	/** Type of this uniform data stored.
		84	*
		85	* In the case of an array, it's the type of a single array element.
		86	*/
		87	const struct glsl_type *type;
		88
		89	/**
		90	* The number of elements in this uniform.
		91	*
		92	* For non-arrays, this is always 0. For arrays, the value is the size of
		93	* the array.
		94	*/
		95	unsigned array_elements;
		96
		97	/**
		98	* Has this uniform ever been set?
		99	*/
		100	bool initialized;
		101
		102	struct {
		103	/**
		104	* Base sampler index
		105	*
		106	* If \c ::base_type is \c GLSL_TYPE_SAMPLER, this represents the index
		107	* of this sampler. If \c ::array_elements is not zero, the array will
		108	* use sampler indices \c ::sampler through \c ::sampler +
		109	* \c ::array_elements - 1, inclusive.
		110	*
		111	* Note that the index may be different in each shader stage.
		112	*/
		113	uint8_t index;
		114
		115	/**
		116	* Whether this sampler is used in this shader stage.
		117	*/
		118	bool active;
		119	} sampler[MESA_SHADER_TYPES];
		120
		121	/**
		122	* Storage used by the driver for the uniform
		123	*/
		124	unsigned num_driver_storage;
		125	struct gl_uniform_driver_storage *driver_storage;
		126
		127	/**
		128	* Storage used by Mesa for the uniform
		129	*
		130	* This form of the uniform is used by Mesa's implementation of \c
		131	* glGetUniform. It can also be used by drivers to obtain the value of the
		132	* uniform if the \c ::driver_storage interface is not used.
		133	*/
		134	union gl_constant_value *storage;
		135
		136	/** Fields for GL_ARB_uniform_buffer_object
		137	* @{
		138	*/
		139
		140	/**
		141	* GL_UNIFORM_BLOCK_INDEX: index of the uniform block containing
		142	* the uniform, or -1 for the default uniform block. Note that the
		143	* index is into the linked program's UniformBlocks[] array, not
		144	* the linked shader's.
		145	*/
		146	int block_index;
		147
		148	/** GL_UNIFORM_OFFSET: byte offset within the uniform block, or -1. */
		149	int offset;
		150
		151	/**
		152	* GL_UNIFORM_MATRIX_STRIDE: byte stride between columns or rows of
		153	* a matrix. Set to 0 for non-matrices in UBOs, or -1 for uniforms
		154	* in the default uniform block.
		155	*/
		156	int matrix_stride;
		157
		158	/**
		159	* GL_UNIFORM_ARRAY_STRIDE: byte stride between elements of the
		160	* array. Set to zero for non-arrays in UBOs, or -1 for uniforms
		161	* in the default uniform block.
		162	*/
		163	int array_stride;
		164
		165	/** GL_UNIFORM_ROW_MAJOR: true iff it's a row-major matrix in a UBO */
		166	bool row_major;
		167
		168	/** @} */
		169	};
		170
		171	#ifdef __cplusplus
		172	}
		173	#endif
		174
		175	#endif /* IR_UNIFORM_H */

Subversion Repositories Kolibri OS

(root)/contrib/sdk/sources/Mesa/src/glsl/ir_uniform.h @ 4938 – Rev 4358