Import some bits Mesa's mtypes.h
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Ian Romanick
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main/mtypes.h
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221
main/mtypes.h
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/*
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* Mesa 3-D graphics library
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* Version: 7.7
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*
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* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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* Copyright (C) 2009 VMware, Inc. 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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/**
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* \file mtypes.h
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* Main Mesa data structures.
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*
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* Please try to mark derived values with a leading underscore ('_').
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*/
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#ifndef MTYPES_H
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#define MTYPES_H
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#define MAX_DRAW_BUFFERS 8
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#define MAX_VARYING 16
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/**
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* Indexes for vertex program attributes.
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* GL_NV_vertex_program aliases generic attributes over the conventional
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* attributes. In GL_ARB_vertex_program shader the aliasing is optional.
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* In GL_ARB_vertex_shader / OpenGL 2.0 the aliasing is disallowed (the
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* generic attributes are distinct/separate).
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*/
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typedef enum
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{
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VERT_ATTRIB_POS = 0,
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VERT_ATTRIB_WEIGHT = 1,
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VERT_ATTRIB_NORMAL = 2,
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VERT_ATTRIB_COLOR0 = 3,
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VERT_ATTRIB_COLOR1 = 4,
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VERT_ATTRIB_FOG = 5,
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VERT_ATTRIB_COLOR_INDEX = 6,
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VERT_ATTRIB_POINT_SIZE = 6, /*alias*/
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VERT_ATTRIB_EDGEFLAG = 7,
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VERT_ATTRIB_TEX0 = 8,
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VERT_ATTRIB_TEX1 = 9,
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VERT_ATTRIB_TEX2 = 10,
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VERT_ATTRIB_TEX3 = 11,
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VERT_ATTRIB_TEX4 = 12,
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VERT_ATTRIB_TEX5 = 13,
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VERT_ATTRIB_TEX6 = 14,
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VERT_ATTRIB_TEX7 = 15,
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VERT_ATTRIB_GENERIC0 = 16,
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VERT_ATTRIB_GENERIC1 = 17,
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VERT_ATTRIB_GENERIC2 = 18,
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VERT_ATTRIB_GENERIC3 = 19,
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VERT_ATTRIB_GENERIC4 = 20,
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VERT_ATTRIB_GENERIC5 = 21,
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VERT_ATTRIB_GENERIC6 = 22,
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VERT_ATTRIB_GENERIC7 = 23,
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VERT_ATTRIB_GENERIC8 = 24,
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VERT_ATTRIB_GENERIC9 = 25,
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VERT_ATTRIB_GENERIC10 = 26,
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VERT_ATTRIB_GENERIC11 = 27,
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VERT_ATTRIB_GENERIC12 = 28,
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VERT_ATTRIB_GENERIC13 = 29,
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VERT_ATTRIB_GENERIC14 = 30,
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VERT_ATTRIB_GENERIC15 = 31,
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VERT_ATTRIB_MAX = 32
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} gl_vert_attrib;
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/**
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* Bitflags for vertex attributes.
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* These are used in bitfields in many places.
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*/
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/*@{*/
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#define VERT_BIT_POS (1 << VERT_ATTRIB_POS)
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#define VERT_BIT_WEIGHT (1 << VERT_ATTRIB_WEIGHT)
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#define VERT_BIT_NORMAL (1 << VERT_ATTRIB_NORMAL)
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#define VERT_BIT_COLOR0 (1 << VERT_ATTRIB_COLOR0)
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#define VERT_BIT_COLOR1 (1 << VERT_ATTRIB_COLOR1)
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#define VERT_BIT_FOG (1 << VERT_ATTRIB_FOG)
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#define VERT_BIT_COLOR_INDEX (1 << VERT_ATTRIB_COLOR_INDEX)
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#define VERT_BIT_EDGEFLAG (1 << VERT_ATTRIB_EDGEFLAG)
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#define VERT_BIT_TEX0 (1 << VERT_ATTRIB_TEX0)
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#define VERT_BIT_TEX1 (1 << VERT_ATTRIB_TEX1)
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#define VERT_BIT_TEX2 (1 << VERT_ATTRIB_TEX2)
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#define VERT_BIT_TEX3 (1 << VERT_ATTRIB_TEX3)
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#define VERT_BIT_TEX4 (1 << VERT_ATTRIB_TEX4)
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#define VERT_BIT_TEX5 (1 << VERT_ATTRIB_TEX5)
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#define VERT_BIT_TEX6 (1 << VERT_ATTRIB_TEX6)
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#define VERT_BIT_TEX7 (1 << VERT_ATTRIB_TEX7)
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#define VERT_BIT_GENERIC0 (1 << VERT_ATTRIB_GENERIC0)
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#define VERT_BIT_GENERIC1 (1 << VERT_ATTRIB_GENERIC1)
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#define VERT_BIT_GENERIC2 (1 << VERT_ATTRIB_GENERIC2)
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#define VERT_BIT_GENERIC3 (1 << VERT_ATTRIB_GENERIC3)
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#define VERT_BIT_GENERIC4 (1 << VERT_ATTRIB_GENERIC4)
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#define VERT_BIT_GENERIC5 (1 << VERT_ATTRIB_GENERIC5)
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#define VERT_BIT_GENERIC6 (1 << VERT_ATTRIB_GENERIC6)
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#define VERT_BIT_GENERIC7 (1 << VERT_ATTRIB_GENERIC7)
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#define VERT_BIT_GENERIC8 (1 << VERT_ATTRIB_GENERIC8)
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#define VERT_BIT_GENERIC9 (1 << VERT_ATTRIB_GENERIC9)
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#define VERT_BIT_GENERIC10 (1 << VERT_ATTRIB_GENERIC10)
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#define VERT_BIT_GENERIC11 (1 << VERT_ATTRIB_GENERIC11)
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#define VERT_BIT_GENERIC12 (1 << VERT_ATTRIB_GENERIC12)
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#define VERT_BIT_GENERIC13 (1 << VERT_ATTRIB_GENERIC13)
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#define VERT_BIT_GENERIC14 (1 << VERT_ATTRIB_GENERIC14)
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#define VERT_BIT_GENERIC15 (1 << VERT_ATTRIB_GENERIC15)
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#define VERT_BIT_TEX(u) (1 << (VERT_ATTRIB_TEX0 + (u)))
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#define VERT_BIT_GENERIC(g) (1 << (VERT_ATTRIB_GENERIC0 + (g)))
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/*@}*/
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/**
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* Indexes for vertex program result attributes
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*/
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typedef enum
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{
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VERT_RESULT_HPOS = 0,
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VERT_RESULT_COL0 = 1,
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VERT_RESULT_COL1 = 2,
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VERT_RESULT_FOGC = 3,
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VERT_RESULT_TEX0 = 4,
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VERT_RESULT_TEX1 = 5,
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VERT_RESULT_TEX2 = 6,
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VERT_RESULT_TEX3 = 7,
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VERT_RESULT_TEX4 = 8,
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VERT_RESULT_TEX5 = 9,
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VERT_RESULT_TEX6 = 10,
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VERT_RESULT_TEX7 = 11,
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VERT_RESULT_PSIZ = 12,
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VERT_RESULT_BFC0 = 13,
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VERT_RESULT_BFC1 = 14,
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VERT_RESULT_EDGE = 15,
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VERT_RESULT_VAR0 = 16, /**< shader varying */
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VERT_RESULT_MAX = (VERT_RESULT_VAR0 + MAX_VARYING)
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} gl_vert_result;
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/**
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* Indexes for fragment program input attributes.
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*/
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typedef enum
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{
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FRAG_ATTRIB_WPOS = 0,
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FRAG_ATTRIB_COL0 = 1,
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FRAG_ATTRIB_COL1 = 2,
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FRAG_ATTRIB_FOGC = 3,
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FRAG_ATTRIB_TEX0 = 4,
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FRAG_ATTRIB_TEX1 = 5,
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FRAG_ATTRIB_TEX2 = 6,
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FRAG_ATTRIB_TEX3 = 7,
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FRAG_ATTRIB_TEX4 = 8,
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FRAG_ATTRIB_TEX5 = 9,
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FRAG_ATTRIB_TEX6 = 10,
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FRAG_ATTRIB_TEX7 = 11,
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FRAG_ATTRIB_FACE = 12, /**< front/back face */
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FRAG_ATTRIB_PNTC = 13, /**< sprite/point coord */
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FRAG_ATTRIB_VAR0 = 14, /**< shader varying */
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FRAG_ATTRIB_MAX = (FRAG_ATTRIB_VAR0 + MAX_VARYING)
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} gl_frag_attrib;
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/**
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* Bitflags for fragment program input attributes.
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*/
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/*@{*/
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#define FRAG_BIT_WPOS (1 << FRAG_ATTRIB_WPOS)
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#define FRAG_BIT_COL0 (1 << FRAG_ATTRIB_COL0)
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#define FRAG_BIT_COL1 (1 << FRAG_ATTRIB_COL1)
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#define FRAG_BIT_FOGC (1 << FRAG_ATTRIB_FOGC)
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#define FRAG_BIT_FACE (1 << FRAG_ATTRIB_FACE)
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#define FRAG_BIT_PNTC (1 << FRAG_ATTRIB_PNTC)
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#define FRAG_BIT_TEX0 (1 << FRAG_ATTRIB_TEX0)
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#define FRAG_BIT_TEX1 (1 << FRAG_ATTRIB_TEX1)
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#define FRAG_BIT_TEX2 (1 << FRAG_ATTRIB_TEX2)
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#define FRAG_BIT_TEX3 (1 << FRAG_ATTRIB_TEX3)
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#define FRAG_BIT_TEX4 (1 << FRAG_ATTRIB_TEX4)
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#define FRAG_BIT_TEX5 (1 << FRAG_ATTRIB_TEX5)
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#define FRAG_BIT_TEX6 (1 << FRAG_ATTRIB_TEX6)
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#define FRAG_BIT_TEX7 (1 << FRAG_ATTRIB_TEX7)
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#define FRAG_BIT_VAR0 (1 << FRAG_ATTRIB_VAR0)
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#define FRAG_BIT_TEX(U) (FRAG_BIT_TEX0 << (U))
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#define FRAG_BIT_VAR(V) (FRAG_BIT_VAR0 << (V))
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#define FRAG_BITS_TEX_ANY (FRAG_BIT_TEX0| \
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FRAG_BIT_TEX1| \
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FRAG_BIT_TEX2| \
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FRAG_BIT_TEX3| \
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FRAG_BIT_TEX4| \
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FRAG_BIT_TEX5| \
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FRAG_BIT_TEX6| \
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FRAG_BIT_TEX7)
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/*@}*/
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/**
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* Fragment program results
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*/
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typedef enum
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{
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FRAG_RESULT_DEPTH = 0,
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FRAG_RESULT_COLOR = 1,
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FRAG_RESULT_DATA0 = 2,
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FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)
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} gl_frag_result;
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#endif
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