| /* |
| * Mesa 3-D graphics library |
| * Version: 6.5.3 |
| * |
| * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \file prog_parameter.c |
| * Program parameter lists and functions. |
| * \author Brian Paul |
| */ |
| |
| #ifndef PROG_PARAMETER_H |
| #define PROG_PARAMETER_H |
| |
| #include "main/mtypes.h" |
| #include "prog_statevars.h" |
| |
| |
| /** |
| * Program parameter. |
| * Used for NV_fragment_program for "DEFINE"d constants and "DECLARE"d |
| * parameters. |
| * Also used by ARB_vertex/fragment_programs for state variables, etc. |
| * Used by shaders for uniforms, constants, varying vars, etc. |
| */ |
| struct gl_program_parameter |
| { |
| const char *Name; /**< Null-terminated string */ |
| enum register_file Type; /**< PROGRAM_NAMED_PARAM, CONSTANT or STATE_VAR */ |
| GLenum DataType; /**< GL_FLOAT, GL_FLOAT_VEC2, etc */ |
| GLuint Size; /**< Number of components (1..4) */ |
| GLboolean Used; /**< Helper flag for GLSL uniform tracking */ |
| /** |
| * A sequence of STATE_* tokens and integers to identify GL state. |
| */ |
| gl_state_index StateIndexes[STATE_LENGTH]; |
| }; |
| |
| |
| /** |
| * List of gl_program_parameter instances. |
| */ |
| struct gl_program_parameter_list |
| { |
| GLuint Size; /**< allocated size of Parameters, ParameterValues */ |
| GLuint NumParameters; /**< number of parameters in arrays */ |
| struct gl_program_parameter *Parameters; /**< Array [Size] */ |
| GLfloat (*ParameterValues)[4]; /**< Array [Size] of GLfloat[4] */ |
| GLbitfield StateFlags; /**< _NEW_* flags indicating which state changes |
| might invalidate ParameterValues[] */ |
| }; |
| |
| |
| extern struct gl_program_parameter_list * |
| _mesa_new_parameter_list(void); |
| |
| extern void |
| _mesa_free_parameter_list(struct gl_program_parameter_list *paramList); |
| |
| extern struct gl_program_parameter_list * |
| _mesa_clone_parameter_list(const struct gl_program_parameter_list *list); |
| |
| extern struct gl_program_parameter_list * |
| _mesa_combine_parameter_lists(const struct gl_program_parameter_list *a, |
| const struct gl_program_parameter_list *b); |
| |
| static INLINE GLuint |
| _mesa_num_parameters(const struct gl_program_parameter_list *list) |
| { |
| return list ? list->NumParameters : 0; |
| } |
| |
| extern GLint |
| _mesa_add_parameter(struct gl_program_parameter_list *paramList, |
| enum register_file type, const char *name, |
| GLuint size, GLenum datatype, const GLfloat *values, |
| const gl_state_index state[STATE_LENGTH]); |
| |
| extern GLint |
| _mesa_add_named_parameter(struct gl_program_parameter_list *paramList, |
| const char *name, const GLfloat values[4]); |
| |
| extern GLint |
| _mesa_add_named_constant(struct gl_program_parameter_list *paramList, |
| const char *name, const GLfloat values[4], |
| GLuint size); |
| |
| extern GLint |
| _mesa_add_unnamed_constant(struct gl_program_parameter_list *paramList, |
| const GLfloat values[4], GLuint size, |
| GLuint *swizzleOut); |
| |
| extern GLint |
| _mesa_add_uniform(struct gl_program_parameter_list *paramList, |
| const char *name, GLuint size, GLenum datatype); |
| |
| extern void |
| _mesa_use_uniform(struct gl_program_parameter_list *paramList, |
| const char *name); |
| |
| extern GLint |
| _mesa_add_sampler(struct gl_program_parameter_list *paramList, |
| const char *name, GLenum datatype); |
| |
| extern GLint |
| _mesa_add_varying(struct gl_program_parameter_list *paramList, |
| const char *name, GLuint size); |
| |
| extern GLint |
| _mesa_add_attribute(struct gl_program_parameter_list *paramList, |
| const char *name, GLint size, GLenum datatype, GLint attrib); |
| |
| extern GLint |
| _mesa_add_state_reference(struct gl_program_parameter_list *paramList, |
| const gl_state_index stateTokens[STATE_LENGTH]); |
| |
| extern GLfloat * |
| _mesa_lookup_parameter_value(const struct gl_program_parameter_list *paramList, |
| GLsizei nameLen, const char *name); |
| |
| extern GLint |
| _mesa_lookup_parameter_index(const struct gl_program_parameter_list *paramList, |
| GLsizei nameLen, const char *name); |
| |
| extern GLboolean |
| _mesa_lookup_parameter_constant(const struct gl_program_parameter_list *list, |
| const GLfloat v[], GLuint vSize, |
| GLint *posOut, GLuint *swizzleOut); |
| |
| extern GLuint |
| _mesa_longest_parameter_name(const struct gl_program_parameter_list *list, |
| enum register_file type); |
| |
| extern GLuint |
| _mesa_num_parameters_of_type(const struct gl_program_parameter_list *list, |
| enum register_file type); |
| |
| |
| #endif /* PROG_PARAMETER_H */ |