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Diffstat (limited to 'src/mesa/shader/program.h')
| -rw-r--r-- | src/mesa/shader/program.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h new file mode 100644 index 00000000000..f71b46f1f70 --- /dev/null +++ b/src/mesa/shader/program.h @@ -0,0 +1,253 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 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 program.c + * Vertex and fragment program support functions. + * \author Brian Paul + */ + + +#ifndef PROGRAM_H +#define PROGRAM_H + +#include "mtypes.h" + + +/* for GL_ARB_v_p and GL_ARB_f_p SWZ instruction */ +#define SWIZZLE_X 0 +#define SWIZZLE_Y 1 +#define SWIZZLE_Z 2 +#define SWIZZLE_W 3 +#define SWIZZLE_ZERO 4 /* keep these values together: KW */ +#define SWIZZLE_ONE 5 /* keep these values together: KW */ + + +/* + * Internal functions + */ + +extern void +_mesa_init_program(GLcontext *ctx); + +extern void +_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string); + +extern const GLubyte * +_mesa_find_line_column(const GLubyte *string, const GLubyte *pos, + GLint *line, GLint *col); + + +extern struct program * +_mesa_init_vertex_program( GLcontext *ctx, + struct vertex_program *prog, + GLenum target, + GLuint id ); + +extern struct program * +_mesa_init_fragment_program( GLcontext *ctx, + struct fragment_program *prog, + GLenum target, + GLuint id ); + +extern struct program * +_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id); + +extern void +_mesa_delete_program(GLcontext *ctx, struct program *prog); + + + +/* + * Used for describing GL state referenced from inside ARB vertex and + * fragment programs. + * A string such as "state.light[0].ambient" gets translated into a + * sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ]. + */ +enum state_index { + STATE_MATERIAL, + + STATE_LIGHT, + STATE_LIGHTMODEL_AMBIENT, + STATE_LIGHTMODEL_SCENECOLOR, + STATE_LIGHTPROD, + + STATE_TEXGEN, + + STATE_FOG_COLOR, + STATE_FOG_PARAMS, + + STATE_CLIPPLANE, + + STATE_POINT_SIZE, + STATE_POINT_ATTENUATION, + + STATE_MATRIX, + STATE_MODELVIEW, + STATE_PROJECTION, + STATE_MVP, + STATE_TEXTURE, + STATE_PROGRAM, + STATE_MATRIX_INVERSE, + STATE_MATRIX_TRANSPOSE, + STATE_MATRIX_INVTRANS, + + STATE_AMBIENT, + STATE_DIFFUSE, + STATE_SPECULAR, + STATE_EMISSION, + STATE_SHININESS, + STATE_HALF, + + STATE_POSITION, + STATE_ATTENUATION, + STATE_SPOT_DIRECTION, + + STATE_TEXGEN_EYE_S, + STATE_TEXGEN_EYE_T, + STATE_TEXGEN_EYE_R, + STATE_TEXGEN_EYE_Q, + STATE_TEXGEN_OBJECT_S, + STATE_TEXGEN_OBJECT_T, + STATE_TEXGEN_OBJECT_R, + STATE_TEXGEN_OBJECT_Q, + + STATE_TEXENV_COLOR, + + STATE_DEPTH_RANGE, + + STATE_VERTEX_PROGRAM, + STATE_FRAGMENT_PROGRAM, + + STATE_ENV, + STATE_LOCAL +}; + + + +/* + * Named program parameters + * Used for NV_fragment_program "DEFINE"d constants and "DECLARE"d parameters, + * and ARB_fragment_program global state references. For the later, Name + * might be "state.light[0].diffuse", for example. + */ + +enum parameter_type +{ + NAMED_PARAMETER, + CONSTANT, + STATE +}; + + +struct program_parameter +{ + const char *Name; /* Null-terminated */ + enum parameter_type Type; + enum state_index StateIndexes[6]; /* Global state reference */ + GLfloat Values[4]; +}; + + +struct program_parameter_list +{ + GLuint NumParameters; + struct program_parameter *Parameters; +}; + + +/* + * Program parameter functions + */ + +extern struct program_parameter_list * +_mesa_new_parameter_list(void); + +extern void +_mesa_free_parameter_list(struct program_parameter_list *paramList); + +extern void +_mesa_free_parameters(struct program_parameter_list *paramList); + +extern GLint +_mesa_add_named_parameter(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]); + +extern GLint +_mesa_add_named_constant(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]); + +extern GLint +_mesa_add_unnamed_constant(struct program_parameter_list *paramList, + const GLfloat values[4]); + +extern GLint +_mesa_add_state_reference(struct program_parameter_list *paramList, + GLint *stateTokens); + +extern GLfloat * +_mesa_lookup_parameter_value(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name); + +extern GLint +_mesa_lookup_parameter_index(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name); + +extern void +_mesa_load_state_parameters(GLcontext *ctx, + struct program_parameter_list *paramList); + + +/* + * API functions + */ + +extern void GLAPIENTRY +_mesa_BindProgram(GLenum target, GLuint id); + +extern void GLAPIENTRY +_mesa_DeletePrograms(GLsizei n, const GLuint *ids); + +extern void GLAPIENTRY +_mesa_GenPrograms(GLsizei n, GLuint *ids); + +extern GLboolean GLAPIENTRY +_mesa_IsProgram(GLuint id); + + + +/* + * GL_MESA_program_debug + */ + +extern void +_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback, + GLvoid *data); + +extern void +_mesa_GetProgramRegisterfvMESA(GLenum target, GLsizei len, + const GLubyte *registerName, GLfloat *v); + + +#endif /* PROGRAM_H */ |