2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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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
34 #include "prog_statevars.h"
43 * Names of the various vertex/fragment program register files, etc.
45 * NOTE: first four tokens must fit into 2 bits (see t_vb_arbprogram.c)
46 * All values should fit in a 4-bit field.
48 * NOTE: PROGRAM_STATE_VAR, PROGRAM_CONSTANT, and PROGRAM_UNIFORM can all be
49 * considered to be "uniform" variables since they can only be set outside
50 * glBegin/End. They're also all stored in the same Parameters array.
54 PROGRAM_TEMPORARY
, /**< machine->Temporary[] */
55 PROGRAM_ARRAY
, /**< Arrays & Matrixes */
56 PROGRAM_INPUT
, /**< machine->Inputs[] */
57 PROGRAM_OUTPUT
, /**< machine->Outputs[] */
58 PROGRAM_STATE_VAR
, /**< gl_program->Parameters[] */
59 PROGRAM_CONSTANT
, /**< gl_program->Parameters[] */
60 PROGRAM_UNIFORM
, /**< gl_program->Parameters[] */
61 PROGRAM_WRITE_ONLY
, /**< A dummy, write-only register */
62 PROGRAM_ADDRESS
, /**< machine->AddressReg */
63 PROGRAM_SAMPLER
, /**< for shader samplers, compile-time only */
64 PROGRAM_SYSTEM_VALUE
,/**< InstanceId, PrimitiveID, etc. */
65 PROGRAM_UNDEFINED
, /**< Invalid/TBD value */
66 PROGRAM_IMMEDIATE
, /**< Immediate value, used by TGSI */
67 PROGRAM_BUFFER
, /**< for shader buffers, compile-time only */
68 PROGRAM_MEMORY
, /**< for shared, global and local memory */
69 PROGRAM_IMAGE
, /**< for shader images, compile-time only */
70 PROGRAM_HW_ATOMIC
, /**< for hw atomic counters, compile-time only */
76 * Actual data for constant values of parameters.
78 typedef union gl_constant_value
89 * Used by shaders/programs for uniforms, constants, varying vars, etc.
91 struct gl_program_parameter
93 const char *Name
; /**< Null-terminated string */
94 gl_register_file Type
:5; /**< PROGRAM_CONSTANT or STATE_VAR */
97 * We need to keep track of whether the param is padded for use in the
102 GLenum16 DataType
; /**< GL_FLOAT, GL_FLOAT_VEC2, etc */
105 * Number of components (1..4), or more.
106 * If the number of components is greater than 4,
107 * this parameter is part of a larger uniform like a GLSL matrix or array.
108 * The next program parameter's Size will be Size-4 of this parameter.
112 * A sequence of STATE_* tokens and integers to identify GL state.
114 gl_state_index16 StateIndexes
[STATE_LENGTH
];
117 * Index of this parameter's uniform storage.
119 uint32_t UniformStorageIndex
;
122 * Index of the first uniform storage that is associated with the same
123 * variable as this parameter.
125 uint32_t MainUniformStorageIndex
;
130 * List of gl_program_parameter instances.
132 struct gl_program_parameter_list
134 GLuint Size
; /**< allocated size of Parameters, ParameterValues */
135 GLuint NumParameters
; /**< number of used parameters in array */
136 unsigned NumParameterValues
; /**< number of used parameter values array */
137 struct gl_program_parameter
*Parameters
; /**< Array [Size] */
138 unsigned *ParameterValueOffset
;
139 gl_constant_value
*ParameterValues
; /**< Array [Size] of gl_constant_value */
140 GLbitfield StateFlags
; /**< _NEW_* flags indicating which state changes
141 might invalidate ParameterValues[] */
145 extern struct gl_program_parameter_list
*
146 _mesa_new_parameter_list(void);
148 extern struct gl_program_parameter_list
*
149 _mesa_new_parameter_list_sized(unsigned size
);
152 _mesa_free_parameter_list(struct gl_program_parameter_list
*paramList
);
155 _mesa_reserve_parameter_storage(struct gl_program_parameter_list
*paramList
,
156 unsigned reserve_slots
);
159 _mesa_add_parameter(struct gl_program_parameter_list
*paramList
,
160 gl_register_file type
, const char *name
,
161 GLuint size
, GLenum datatype
,
162 const gl_constant_value
*values
,
163 const gl_state_index16 state
[STATE_LENGTH
],
167 _mesa_add_typed_unnamed_constant(struct gl_program_parameter_list
*paramList
,
168 const gl_constant_value values
[4], GLuint size
,
169 GLenum datatype
, GLuint
*swizzleOut
);
172 _mesa_add_unnamed_constant(struct gl_program_parameter_list
*paramList
,
173 const gl_constant_value values
[4], GLuint size
,
176 return _mesa_add_typed_unnamed_constant(paramList
, values
, size
, GL_NONE
,
181 _mesa_add_sized_state_reference(struct gl_program_parameter_list
*paramList
,
182 const gl_state_index16 stateTokens
[STATE_LENGTH
],
183 const unsigned size
, bool pad_and_align
);
186 _mesa_add_state_reference(struct gl_program_parameter_list
*paramList
,
187 const gl_state_index16 stateTokens
[]);
191 _mesa_lookup_parameter_index(const struct gl_program_parameter_list
*paramList
,
197 /* name must be null-terminated */
198 for (GLint i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
199 if (paramList
->Parameters
[i
].Name
&&
200 strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
208 _mesa_gl_datatype_is_64bit(GLenum datatype
)
216 case GL_DOUBLE_MAT2x3
:
217 case GL_DOUBLE_MAT2x4
:
219 case GL_DOUBLE_MAT3x2
:
220 case GL_DOUBLE_MAT3x4
:
222 case GL_DOUBLE_MAT4x2
:
223 case GL_DOUBLE_MAT4x3
:
225 case GL_INT64_VEC2_ARB
:
226 case GL_INT64_VEC3_ARB
:
227 case GL_INT64_VEC4_ARB
:
228 case GL_UNSIGNED_INT64_ARB
:
229 case GL_UNSIGNED_INT64_VEC2_ARB
:
230 case GL_UNSIGNED_INT64_VEC3_ARB
:
231 case GL_UNSIGNED_INT64_VEC4_ARB
:
242 #endif /* PROG_PARAMETER_H */