2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Vertex and fragment program support functions.
38 /* for GL_ARB_v_p and GL_ARB_f_p SWZ instruction */
39 #define SWIZZLE_ZERO 100
40 #define SWIZZLE_ONE 101
48 _mesa_init_program(GLcontext
*ctx
);
51 _mesa_set_program_error(GLcontext
*ctx
, GLint pos
, const char *string
);
53 extern const GLubyte
*
54 _mesa_find_line_column(const GLubyte
*string
, const GLubyte
*pos
,
55 GLint
*line
, GLint
*col
);
57 extern struct program
*
58 _mesa_alloc_program(GLcontext
*ctx
, GLenum target
, GLuint id
);
61 _mesa_delete_program(GLcontext
*ctx
, struct program
*prog
);
66 * Used for describing GL state referenced from inside ARB vertex and
68 * A string such as "state.light[0].ambient" gets translated into a
69 * sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ].
75 STATE_LIGHTMODEL_AMBIENT
,
76 STATE_LIGHTMODEL_SCENECOLOR
,
87 STATE_POINT_ATTENUATION
,
96 STATE_MATRIX_TRANSPOSE
,
97 STATE_MATRIX_INVTRANS
,
108 STATE_SPOT_DIRECTION
,
114 STATE_TEXGEN_OBJECT_S
,
115 STATE_TEXGEN_OBJECT_T
,
116 STATE_TEXGEN_OBJECT_R
,
117 STATE_TEXGEN_OBJECT_Q
,
123 STATE_VERTEX_PROGRAM
,
124 STATE_FRAGMENT_PROGRAM
,
133 * Named program parameters
134 * Used for NV_fragment_program "DEFINE"d constants and "DECLARE"d parameters,
135 * and ARB_fragment_program global state references. For the later, Name
136 * might be "state.light[0].diffuse", for example.
147 struct program_parameter
149 const char *Name
; /* Null-terminated */
150 enum parameter_type Type
;
151 enum state_index StateIndexes
[6]; /* Global state reference */
156 struct program_parameter_list
158 GLuint NumParameters
;
159 struct program_parameter
*Parameters
;
164 * Program parameter functions
167 extern struct program_parameter_list
*
168 _mesa_new_parameter_list(void);
171 _mesa_free_parameter_list(struct program_parameter_list
*paramList
);
174 _mesa_free_parameters(struct program_parameter_list
*paramList
);
177 _mesa_add_named_parameter(struct program_parameter_list
*paramList
,
178 const char *name
, const GLfloat values
[4]);
181 _mesa_add_named_constant(struct program_parameter_list
*paramList
,
182 const char *name
, const GLfloat values
[4]);
185 _mesa_add_unnamed_constant(struct program_parameter_list
*paramList
,
186 const GLfloat values
[4]);
189 _mesa_add_state_reference(struct program_parameter_list
*paramList
,
193 _mesa_lookup_parameter_value(struct program_parameter_list
*paramList
,
194 GLsizei nameLen
, const char *name
);
197 _mesa_lookup_parameter_index(struct program_parameter_list
*paramList
,
198 GLsizei nameLen
, const char *name
);
201 _mesa_load_state_parameters(GLcontext
*ctx
,
202 struct program_parameter_list
*paramList
);
209 extern void GLAPIENTRY
210 _mesa_BindProgram(GLenum target
, GLuint id
);
212 extern void GLAPIENTRY
213 _mesa_DeletePrograms(GLsizei n
, const GLuint
*ids
);
215 extern void GLAPIENTRY
216 _mesa_GenPrograms(GLsizei n
, GLuint
*ids
);
218 extern GLboolean GLAPIENTRY
219 _mesa_IsProgram(GLuint id
);
224 * GL_MESA_program_debug
228 _mesa_ProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
232 _mesa_GetProgramRegisterfvMESA(GLenum target
, GLsizei len
,
233 const GLubyte
*registerName
, GLfloat
*v
);
236 #endif /* PROGRAM_H */