114152e068
add new entrypoints, new texture format, etc translate in texenvprogram.c for drivers using the mesa-generated tex env fragment program also handled in swrast, but not tested (cannot work due to negative texel results not handled correctly)
145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 7.1
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*
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* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef PROG_STATEVARS_H
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#define PROG_STATEVARS_H
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#include "main/mtypes.h"
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/**
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* Number of STATE_* values we need to address any GL state.
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* Used to dimension arrays.
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*/
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#define STATE_LENGTH 5
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/**
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* Used for describing GL state referenced from inside ARB vertex and
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* fragment programs.
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* A string such as "state.light[0].ambient" gets translated into a
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* sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ].
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*
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* For state that's an array, like STATE_CLIPPLANE, the 2nd token [1] should
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* always be the array index.
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*/
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typedef enum gl_state_index_ {
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STATE_MATERIAL = 100, /* start at 100 so small ints are seen as ints */
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STATE_LIGHT,
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STATE_LIGHTMODEL_AMBIENT,
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STATE_LIGHTMODEL_SCENECOLOR,
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STATE_LIGHTPROD,
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STATE_TEXGEN,
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STATE_FOG_COLOR,
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STATE_FOG_PARAMS,
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STATE_CLIPPLANE,
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STATE_POINT_SIZE,
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STATE_POINT_ATTENUATION,
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STATE_MODELVIEW_MATRIX,
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STATE_PROJECTION_MATRIX,
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STATE_MVP_MATRIX,
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STATE_TEXTURE_MATRIX,
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STATE_PROGRAM_MATRIX,
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STATE_COLOR_MATRIX,
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STATE_MATRIX_INVERSE,
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STATE_MATRIX_TRANSPOSE,
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STATE_MATRIX_INVTRANS,
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STATE_AMBIENT,
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STATE_DIFFUSE,
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STATE_SPECULAR,
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STATE_EMISSION,
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STATE_SHININESS,
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STATE_HALF_VECTOR,
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STATE_POSITION, /**< xyzw = position */
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STATE_ATTENUATION, /**< xyz = attenuation, w = spot exponent */
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STATE_SPOT_DIRECTION, /**< xyz = direction, w = cos(cutoff) */
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STATE_SPOT_CUTOFF, /**< x = cutoff, yzw = undefined */
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STATE_TEXGEN_EYE_S,
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STATE_TEXGEN_EYE_T,
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STATE_TEXGEN_EYE_R,
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STATE_TEXGEN_EYE_Q,
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STATE_TEXGEN_OBJECT_S,
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STATE_TEXGEN_OBJECT_T,
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STATE_TEXGEN_OBJECT_R,
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STATE_TEXGEN_OBJECT_Q,
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STATE_TEXENV_COLOR,
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STATE_DEPTH_RANGE,
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STATE_VERTEX_PROGRAM,
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STATE_FRAGMENT_PROGRAM,
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STATE_ENV,
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STATE_LOCAL,
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STATE_INTERNAL, /* Mesa additions */
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STATE_CURRENT_ATTRIB, /* ctx->Current vertex attrib value */
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STATE_NORMAL_SCALE,
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STATE_TEXRECT_SCALE,
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STATE_FOG_PARAMS_OPTIMIZED, /* for faster fog calc */
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STATE_LIGHT_SPOT_DIR_NORMALIZED, /* pre-normalized spot dir */
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STATE_LIGHT_POSITION, /* object vs eye space */
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STATE_LIGHT_POSITION_NORMALIZED, /* object vs eye space */
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STATE_LIGHT_HALF_VECTOR, /* object vs eye space */
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STATE_PT_SCALE, /**< Pixel transfer RGBA scale */
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STATE_PT_BIAS, /**< Pixel transfer RGBA bias */
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STATE_PCM_SCALE, /**< Post color matrix RGBA scale */
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STATE_PCM_BIAS, /**< Post color matrix RGBA bias */
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STATE_SHADOW_AMBIENT, /**< ARB_shadow_ambient fail value; token[2] is texture unit index */
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STATE_ROT_MATRIX_0, /**< ATI_envmap_bumpmap, rot matrix row 0 */
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STATE_ROT_MATRIX_1, /**< ATI_envmap_bumpmap, rot matrix row 1 */
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STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
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} gl_state_index;
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extern void
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_mesa_load_state_parameters(GLcontext *ctx,
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struct gl_program_parameter_list *paramList);
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extern GLbitfield
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_mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]);
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extern char *
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_mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);
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extern void
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_mesa_load_tracked_matrices(GLcontext *ctx);
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#endif /* PROG_STATEVARS_H */
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