| /* |
| * Mesa 3-D graphics library |
| * |
| * 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 |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 "util/glheader.h" |
| #include "compiler/shader_enums.h" |
| #include <stdint.h> |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| struct gl_context; |
| struct gl_constants; |
| struct gl_program_parameter_list; |
| |
| |
| /** |
| * 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_NOT_STATE_VAR = 0, |
| |
| STATE_MATERIAL, |
| |
| STATE_LIGHT, /* One gl_light attribute. */ |
| STATE_LIGHT_ARRAY, /* Multiple gl_light attributes loaded at once. */ |
| STATE_LIGHT_ATTENUATION_ARRAY, |
| STATE_LIGHTMODEL_AMBIENT, |
| STATE_LIGHTMODEL_SCENECOLOR, |
| STATE_LIGHTPROD, |
| STATE_LIGHTPROD_ARRAY_FRONT, /* multiple lights, only front faces */ |
| STATE_LIGHTPROD_ARRAY_BACK, /* multiple lights, only back faces */ |
| STATE_LIGHTPROD_ARRAY_TWOSIDE, /* multiple lights, both sides */ |
| |
| STATE_TEXGEN, |
| STATE_TEXENV_COLOR, |
| |
| STATE_FOG_COLOR, |
| STATE_FOG_PARAMS, |
| |
| STATE_CLIPPLANE, |
| |
| STATE_POINT_SIZE, |
| STATE_POINT_ATTENUATION, |
| |
| STATE_MODELVIEW_MATRIX, |
| STATE_MODELVIEW_MATRIX_INVERSE, |
| STATE_MODELVIEW_MATRIX_TRANSPOSE, |
| STATE_MODELVIEW_MATRIX_INVTRANS, |
| |
| STATE_PROJECTION_MATRIX, |
| STATE_PROJECTION_MATRIX_INVERSE, |
| STATE_PROJECTION_MATRIX_TRANSPOSE, |
| STATE_PROJECTION_MATRIX_INVTRANS, |
| |
| STATE_MVP_MATRIX, |
| STATE_MVP_MATRIX_INVERSE, |
| STATE_MVP_MATRIX_TRANSPOSE, |
| STATE_MVP_MATRIX_INVTRANS, |
| |
| STATE_TEXTURE_MATRIX, |
| STATE_TEXTURE_MATRIX_INVERSE, |
| STATE_TEXTURE_MATRIX_TRANSPOSE, |
| STATE_TEXTURE_MATRIX_INVTRANS, |
| |
| STATE_PROGRAM_MATRIX, |
| STATE_PROGRAM_MATRIX_INVERSE, |
| STATE_PROGRAM_MATRIX_TRANSPOSE, |
| STATE_PROGRAM_MATRIX_INVTRANS, |
| |
| STATE_NUM_SAMPLES, /* An integer, not a float like the other state vars */ |
| |
| STATE_DEPTH_RANGE, |
| |
| STATE_FRAGMENT_PROGRAM_ENV, |
| STATE_FRAGMENT_PROGRAM_ENV_ARRAY, |
| STATE_FRAGMENT_PROGRAM_LOCAL, |
| STATE_FRAGMENT_PROGRAM_LOCAL_ARRAY, |
| STATE_VERTEX_PROGRAM_ENV, |
| STATE_VERTEX_PROGRAM_ENV_ARRAY, |
| STATE_VERTEX_PROGRAM_LOCAL, |
| STATE_VERTEX_PROGRAM_LOCAL_ARRAY, |
| |
| STATE_NORMAL_SCALE_EYESPACE, |
| STATE_CURRENT_ATTRIB, /* ctx->Current vertex attrib value */ |
| STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED, /* ctx->Current vertex attrib value after passthrough vertex processing */ |
| STATE_NORMAL_SCALE, |
| STATE_FOG_PARAMS_OPTIMIZED, /* for faster fog calc */ |
| STATE_POINT_SIZE_CLAMPED, /* includes implementation dependent size clamp */ |
| STATE_LIGHT_SPOT_DIR_NORMALIZED, /* pre-normalized spot dir */ |
| STATE_LIGHT_POSITION, /* object vs eye space */ |
| STATE_LIGHT_POSITION_ARRAY, |
| STATE_LIGHT_POSITION_NORMALIZED, /* object vs eye space */ |
| STATE_LIGHT_POSITION_NORMALIZED_ARRAY, |
| STATE_LIGHT_HALF_VECTOR, /* object vs eye space */ |
| STATE_PT_SCALE, /**< Pixel transfer RGBA scale */ |
| STATE_PT_BIAS, /**< Pixel transfer RGBA bias */ |
| STATE_FB_SIZE, /**< (width-1, height-1, 0, 0) */ |
| STATE_FB_WPOS_Y_TRANSFORM, /**< (1, 0, -1, height) if a FBO is bound, (-1, height, 1, 0) otherwise */ |
| STATE_FB_PNTC_Y_TRANSFORM, /**< (1, 0, 0, 0) if point origin is upper left, (-1, 1, 0, 0) otherwise */ |
| STATE_TCS_PATCH_VERTICES_IN, /**< gl_PatchVerticesIn for TCS (integer) */ |
| STATE_TES_PATCH_VERTICES_IN, /**< gl_PatchVerticesIn for TES (integer) */ |
| /** |
| * A single enum gl_blend_support_qualifier value representing the |
| * currently active advanced blending equation, or zero if disabled. |
| */ |
| STATE_ADVANCED_BLENDING_MODE, |
| STATE_ALPHA_REF, /* alpha-test reference value */ |
| STATE_CLIP_INTERNAL, /* similar to STATE_CLIPPLANE, but in clip-space */ |
| STATE_ATOMIC_COUNTER_OFFSET, /* the byte offset to add to atomic counter bindings */ |
| |
| STATE_INTERNAL_DRIVER, /* first available state index for drivers (must be last) */ |
| |
| |
| /** All enums below don't occur in state[0]. **/ |
| |
| /* These 8 enums must be in the same order as the gl_light union members, |
| * which should also match the order of gl_LightSource members. |
| */ |
| STATE_AMBIENT, |
| STATE_DIFFUSE, |
| STATE_SPECULAR, |
| STATE_POSITION, /**< xyzw = position */ |
| STATE_HALF_VECTOR, |
| STATE_SPOT_DIRECTION, /**< xyz = direction, w = cos(cutoff) */ |
| STATE_ATTENUATION, /**< xyz = attenuation, w = spot exponent */ |
| STATE_SPOT_CUTOFF, /**< x = cutoff, yzw = undefined */ |
| |
| STATE_EMISSION, |
| STATE_SHININESS, |
| |
| /* These 8 enums must be in the same order as the memory layout of |
| * gl_fixedfunc_texture_unit::EyePlane/ObjectPlane. |
| */ |
| 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, |
| } gl_state_index; |
| |
| |
| extern void |
| _mesa_load_state_parameters(struct gl_context *ctx, |
| struct gl_program_parameter_list *paramList); |
| |
| extern void |
| _mesa_upload_state_parameters(struct gl_context *ctx, |
| struct gl_program_parameter_list *paramList, |
| uint32_t *dst); |
| |
| extern void |
| _mesa_optimize_state_parameters(struct gl_constants *consts, |
| struct gl_program_parameter_list *list); |
| |
| extern unsigned |
| _mesa_program_state_value_size(const gl_state_index16 state[STATE_LENGTH]); |
| |
| extern GLbitfield |
| _mesa_program_state_flags(const gl_state_index16 state[STATE_LENGTH]); |
| |
| |
| extern char * |
| _mesa_program_state_string(const gl_state_index16 state[STATE_LENGTH]); |
| |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* PROG_STATEVARS_H */ |
