diff options
Diffstat (limited to 'src/mesa/program/prog_parameter.h')
| -rw-r--r-- | src/mesa/program/prog_parameter.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/mesa/program/prog_parameter.h b/src/mesa/program/prog_parameter.h new file mode 100644 index 00000000000..cc3378ae201 --- /dev/null +++ b/src/mesa/program/prog_parameter.h @@ -0,0 +1,182 @@ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 1999-2008 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 flags + */ +/*@{*/ +#define PROG_PARAM_BIT_CENTROID 0x1 /**< for varying vars (GLSL 1.20) */ +#define PROG_PARAM_BIT_INVARIANT 0x2 /**< for varying vars (GLSL 1.20) */ +#define PROG_PARAM_BIT_FLAT 0x4 /**< for varying vars (GLSL 1.30) */ +#define PROG_PARAM_BIT_LINEAR 0x8 /**< for varying vars (GLSL 1.30) */ +#define PROG_PARAM_BIT_CYL_WRAP 0x10 /**< XXX gallium debug */ +/*@}*/ + + + +/** + * Program parameter. + * Used by shaders/programs for uniforms, constants, varying vars, etc. + */ +struct gl_program_parameter +{ + const char *Name; /**< Null-terminated string */ + gl_register_file Type; /**< PROGRAM_NAMED_PARAM, CONSTANT or STATE_VAR */ + GLenum DataType; /**< GL_FLOAT, GL_FLOAT_VEC2, etc */ + /** + * Number of components (1..4), or more. + * If the number of components is greater than 4, + * this parameter is part of a larger uniform like a GLSL matrix or array. + * The next program parameter's Size will be Size-4 of this parameter. + */ + GLuint Size; + GLboolean Used; /**< Helper flag for GLSL uniform tracking */ + GLboolean Initialized; /**< Has the ParameterValue[] been set? */ + GLbitfield Flags; /**< Bitmask of PROG_PARAM_*_BIT */ + /** + * 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 struct gl_program_parameter_list * +_mesa_new_parameter_list_sized(unsigned size); + +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, + gl_register_file type, const char *name, + GLuint size, GLenum datatype, const GLfloat *values, + const gl_state_index state[STATE_LENGTH], + GLbitfield flags); + +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, + const GLfloat *values); + +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, GLenum datatype, + GLbitfield flags); + +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, + gl_register_file type); + +extern GLuint +_mesa_num_parameters_of_type(const struct gl_program_parameter_list *list, + gl_register_file type); + + +#endif /* PROG_PARAMETER_H */ |