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Diffstat (limited to 'src/mesa/program/prog_statevars.h')
-rw-r--r-- | src/mesa/program/prog_statevars.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mesa/program/prog_statevars.h b/src/mesa/program/prog_statevars.h new file mode 100644 index 00000000000..1753471ffb6 --- /dev/null +++ b/src/mesa/program/prog_statevars.h @@ -0,0 +1,147 @@ +/* + * 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" + + +/** + * Number of STATE_* values we need to address any GL state. + * Used to dimension arrays. + */ +#define STATE_LENGTH 5 + + +/** + * 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 ]. + * + * For state that's an array, like STATE_CLIPPLANE, the 2nd token [1] should + * always be the array index. + */ +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, /**< xyzw = position */ + STATE_ATTENUATION, /**< xyz = attenuation, w = spot exponent */ + STATE_SPOT_DIRECTION, /**< xyz = direction, w = cos(cutoff) */ + STATE_SPOT_CUTOFF, /**< x = cutoff, yzw = undefined */ + + 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_CURRENT_ATTRIB, /* ctx->Current vertex attrib value */ + STATE_NORMAL_SCALE, + STATE_TEXRECT_SCALE, + STATE_FOG_PARAMS_OPTIMIZED, /* for faster fog calc */ + STATE_POINT_SIZE_CLAMPED, /* includes implementation dependent size clamp */ + STATE_POINT_SIZE_IMPL_CLAMP, /* for implementation clamp only in vs */ + 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, /**< Pixel transfer RGBA scale */ + STATE_PT_BIAS, /**< Pixel transfer RGBA bias */ + STATE_PCM_SCALE, /**< Post color matrix RGBA scale */ + STATE_PCM_BIAS, /**< Post color matrix RGBA bias */ + STATE_SHADOW_AMBIENT, /**< ARB_shadow_ambient fail value; token[2] is texture unit index */ + STATE_FB_SIZE, /**< (width-1, height-1, 0, 0) */ + STATE_ROT_MATRIX_0, /**< ATI_envmap_bumpmap, rot matrix row 0 */ + STATE_ROT_MATRIX_1, /**< ATI_envmap_bumpmap, rot matrix row 1 */ + 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 char * +_mesa_program_state_string(const gl_state_index state[STATE_LENGTH]); + + +extern void +_mesa_load_tracked_matrices(GLcontext *ctx); + + +#endif /* PROG_STATEVARS_H */ |