Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice shall be included
  14.  * in all copies or substantial portions of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20.  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21.  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22.  * OTHER DEALINGS IN THE SOFTWARE.
  23.  */
  24.  
  25. #ifndef PROG_STATEVARS_H
  26. #define PROG_STATEVARS_H
  27.  
  28.  
  29. #include "main/glheader.h"
  30.  
  31.  
  32. #ifdef __cplusplus
  33. extern "C" {
  34. #endif
  35.  
  36.  
  37. struct gl_context;
  38. struct gl_program_parameter_list;
  39.  
  40. /**
  41.  * Number of STATE_* values we need to address any GL state.
  42.  * Used to dimension arrays.
  43.  */
  44. #define STATE_LENGTH 5
  45.  
  46.  
  47. /**
  48.  * Used for describing GL state referenced from inside ARB vertex and
  49.  * fragment programs.
  50.  * A string such as "state.light[0].ambient" gets translated into a
  51.  * sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ].
  52.  *
  53.  * For state that's an array, like STATE_CLIPPLANE, the 2nd token [1] should
  54.  * always be the array index.
  55.  */
  56. typedef enum gl_state_index_ {
  57.    STATE_MATERIAL = 100,  /* start at 100 so small ints are seen as ints */
  58.  
  59.    STATE_LIGHT,
  60.    STATE_LIGHTMODEL_AMBIENT,
  61.    STATE_LIGHTMODEL_SCENECOLOR,
  62.    STATE_LIGHTPROD,
  63.  
  64.    STATE_TEXGEN,
  65.  
  66.    STATE_FOG_COLOR,
  67.    STATE_FOG_PARAMS,
  68.  
  69.    STATE_CLIPPLANE,
  70.  
  71.    STATE_POINT_SIZE,
  72.    STATE_POINT_ATTENUATION,
  73.  
  74.    STATE_MODELVIEW_MATRIX,
  75.    STATE_PROJECTION_MATRIX,
  76.    STATE_MVP_MATRIX,
  77.    STATE_TEXTURE_MATRIX,
  78.    STATE_PROGRAM_MATRIX,
  79.    STATE_MATRIX_INVERSE,
  80.    STATE_MATRIX_TRANSPOSE,
  81.    STATE_MATRIX_INVTRANS,
  82.  
  83.    STATE_AMBIENT,
  84.    STATE_DIFFUSE,
  85.    STATE_SPECULAR,
  86.    STATE_EMISSION,
  87.    STATE_SHININESS,
  88.    STATE_HALF_VECTOR,
  89.  
  90.    STATE_POSITION,       /**< xyzw = position */
  91.    STATE_ATTENUATION,    /**< xyz = attenuation, w = spot exponent */
  92.    STATE_SPOT_DIRECTION, /**< xyz = direction, w = cos(cutoff) */
  93.    STATE_SPOT_CUTOFF,    /**< x = cutoff, yzw = undefined */
  94.  
  95.    STATE_TEXGEN_EYE_S,
  96.    STATE_TEXGEN_EYE_T,
  97.    STATE_TEXGEN_EYE_R,
  98.    STATE_TEXGEN_EYE_Q,
  99.    STATE_TEXGEN_OBJECT_S,
  100.    STATE_TEXGEN_OBJECT_T,
  101.    STATE_TEXGEN_OBJECT_R,
  102.    STATE_TEXGEN_OBJECT_Q,
  103.  
  104.    STATE_TEXENV_COLOR,
  105.  
  106.    STATE_DEPTH_RANGE,
  107.  
  108.    STATE_VERTEX_PROGRAM,
  109.    STATE_FRAGMENT_PROGRAM,
  110.  
  111.    STATE_ENV,
  112.    STATE_LOCAL,
  113.  
  114.    STATE_INTERNAL,              /* Mesa additions */
  115.    STATE_CURRENT_ATTRIB,        /* ctx->Current vertex attrib value */
  116.    STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED,        /* ctx->Current vertex attrib value after passthrough vertex processing */
  117.    STATE_NORMAL_SCALE,
  118.    STATE_TEXRECT_SCALE,
  119.    STATE_FOG_PARAMS_OPTIMIZED,  /* for faster fog calc */
  120.    STATE_POINT_SIZE_CLAMPED,    /* includes implementation dependent size clamp */
  121.    STATE_LIGHT_SPOT_DIR_NORMALIZED,   /* pre-normalized spot dir */
  122.    STATE_LIGHT_POSITION,              /* object vs eye space */
  123.    STATE_LIGHT_POSITION_NORMALIZED,   /* object vs eye space */
  124.    STATE_LIGHT_HALF_VECTOR,           /* object vs eye space */
  125.    STATE_PT_SCALE,              /**< Pixel transfer RGBA scale */
  126.    STATE_PT_BIAS,               /**< Pixel transfer RGBA bias */
  127.    STATE_FB_SIZE,               /**< (width-1, height-1, 0, 0) */
  128.    STATE_FB_WPOS_Y_TRANSFORM,   /**< (1, 0, -1, height) if a FBO is bound, (-1, height, 1, 0) otherwise */
  129.    STATE_ROT_MATRIX_0,          /**< ATI_envmap_bumpmap, rot matrix row 0 */
  130.    STATE_ROT_MATRIX_1,          /**< ATI_envmap_bumpmap, rot matrix row 1 */
  131.    STATE_INTERNAL_DRIVER        /* first available state index for drivers (must be last) */
  132. } gl_state_index;
  133.  
  134.  
  135.  
  136. extern void
  137. _mesa_load_state_parameters(struct gl_context *ctx,
  138.                             struct gl_program_parameter_list *paramList);
  139.  
  140.  
  141. extern GLbitfield
  142. _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]);
  143.  
  144.  
  145. extern char *
  146. _mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);
  147.  
  148.  
  149.  
  150. #ifdef __cplusplus
  151. }
  152. #endif
  153.  
  154. #endif /* PROG_STATEVARS_H */
  155.