prog_statevars.h

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/*
 * Mesa 3-D graphics library
 * Version:  7.1
 *
 * 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.
 */

#ifndef PROG_STATEVARS_H
#define PROG_STATEVARS_H

#include "main/mtypes.h"


#define STATE_LENGTH 5


typedef enum gl_state_index_ {
   STATE_MATERIAL = 100,  /* start at 100 so small ints are seen as ints */

   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_MODELVIEW_MATRIX,
   STATE_PROJECTION_MATRIX,
   STATE_MVP_MATRIX,
   STATE_TEXTURE_MATRIX,
   STATE_PROGRAM_MATRIX,
   STATE_COLOR_MATRIX,
   STATE_MATRIX_INVERSE,
   STATE_MATRIX_TRANSPOSE,
   STATE_MATRIX_INVTRANS,

   STATE_AMBIENT,
   STATE_DIFFUSE,
   STATE_SPECULAR,
   STATE_EMISSION,
   STATE_SHININESS,
   STATE_HALF_VECTOR,

   STATE_POSITION,       
   STATE_ATTENUATION,    
   STATE_SPOT_DIRECTION, 
   STATE_SPOT_CUTOFF,    
   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,

   STATE_INTERNAL,      /* Mesa additions */
   STATE_NORMAL_SCALE,
   STATE_TEXRECT_SCALE,
   STATE_FOG_PARAMS_OPTIMIZED,  /* for faster fog calc */
   STATE_LIGHT_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
   STATE_LIGHT_POSITION,              /* object vs eye space */
   STATE_LIGHT_POSITION_NORMALIZED,   /* object vs eye space */
   STATE_LIGHT_HALF_VECTOR,           /* object vs eye space */
   STATE_PT_SCALE,              
   STATE_PT_BIAS,               
   STATE_PCM_SCALE,             
   STATE_PCM_BIAS,              
   STATE_SHADOW_AMBIENT,        
   STATE_INTERNAL_DRIVER    /* first available state index for drivers (must be last) */
} gl_state_index;



extern void
_mesa_load_state_parameters(GLcontext *ctx,
                            struct gl_program_parameter_list *paramList);


extern GLbitfield
_mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]);


extern const char *
_mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);


extern void
_mesa_load_tracked_matrices(GLcontext *ctx);


#endif /* PROG_STATEVARS_H */