2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
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8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
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14 * The above copyright notice and this permission notice shall be included
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18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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26 * \file prog_parameter.c
27 * Program parameter lists and functions.
31 #ifndef PROG_PARAMETER_H
32 #define PROG_PARAMETER_H
38 * Named program parameters
39 * Used for NV_fragment_program "DEFINE"d constants and "DECLARE"d parameters,
40 * and ARB_fragment_program global state references. For the later, Name
41 * might be "state.light[0].diffuse", for example.
43 struct gl_program_parameter
45 const char *Name
; /**< Null-terminated string */
46 enum register_file Type
; /**< PROGRAM_NAMED_PARAM, CONSTANT or STATE_VAR */
47 GLuint Size
; /**< Number of components (1..4) */
49 * A sequence of STATE_* tokens and integers to identify GL state.
51 GLuint StateIndexes
[6];
56 * A list of the above program_parameter instances.
58 struct gl_program_parameter_list
60 GLuint Size
; /**< allocated size of Parameters, ParameterValues */
61 GLuint NumParameters
; /**< number of parameters in arrays */
62 struct gl_program_parameter
*Parameters
; /**< Array [Size] */
63 GLfloat (*ParameterValues
)[4]; /**< Array [Size] of GLfloat[4] */
64 GLbitfield StateFlags
; /**< _NEW_* flags indicating which state changes
65 might invalidate ParameterValues[] */
69 extern struct gl_program_parameter_list
*
70 _mesa_new_parameter_list(void);
73 _mesa_free_parameter_list(struct gl_program_parameter_list
*paramList
);
75 extern struct gl_program_parameter_list
*
76 _mesa_clone_parameter_list(const struct gl_program_parameter_list
*list
);
79 _mesa_add_parameter(struct gl_program_parameter_list
*paramList
,
80 const char *name
, const GLfloat values
[4], GLuint size
,
81 enum register_file type
);
84 _mesa_add_named_parameter(struct gl_program_parameter_list
*paramList
,
85 const char *name
, const GLfloat values
[4]);
88 _mesa_add_named_constant(struct gl_program_parameter_list
*paramList
,
89 const char *name
, const GLfloat values
[4],
93 _mesa_add_unnamed_constant(struct gl_program_parameter_list
*paramList
,
94 const GLfloat values
[4], GLuint size
,
98 _mesa_add_uniform(struct gl_program_parameter_list
*paramList
,
99 const char *name
, GLuint size
);
102 _mesa_add_varying(struct gl_program_parameter_list
*paramList
,
103 const char *name
, GLuint size
);
106 _mesa_add_state_reference(struct gl_program_parameter_list
*paramList
,
107 const GLint
*stateTokens
);
110 _mesa_lookup_parameter_value(const struct gl_program_parameter_list
*paramList
,
111 GLsizei nameLen
, const char *name
);
114 _mesa_lookup_parameter_index(const struct gl_program_parameter_list
*paramList
,
115 GLsizei nameLen
, const char *name
);
118 _mesa_lookup_parameter_constant(const struct gl_program_parameter_list
*paramList
,
119 const GLfloat v
[], GLsizei vSize
,
120 GLint
*posOut
, GLuint
*swizzleOut
);
123 #endif /* PROG_PARAMETER_H */