| 1 | /** @file
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| 2 | *
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| 3 | * VirtualBox Windows NT/2000/XP guest OpenGL ICD
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| 4 | *
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| 5 | * Copyright (C) 2006-2007 innotek GmbH
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| 6 | *
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| 7 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 8 | * available from http://www.virtualbox.org. This file is free software;
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| 9 | * you can redistribute it and/or modify it under the terms of the GNU
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| 10 | * General Public License (GPL) as published by the Free Software
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| 11 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 12 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 13 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 14 | */
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| 15 | /*
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| 16 | * Mesa 3-D graphics library
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| 17 | * Version: 6.5.1
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| 18 | *
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| 19 | * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
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| 20 | *
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| 21 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 22 | * copy of this software and associated documentation files (the "Software"),
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| 23 | * to deal in the Software without restriction, including without limitation
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| 24 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 25 | * and/or sell copies of the Software, and to permit persons to whom the
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| 26 | * Software is furnished to do so, subject to the following conditions:
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| 27 | *
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| 28 | * The above copyright notice and this permission notice shall be included
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| 29 | * in all copies or substantial portions of the Software.
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| 30 | *
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| 31 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 32 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 33 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 34 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 35 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 36 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 37 | */
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| 38 | #include "VBoxOGL.h"
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| 39 | #include <iprt/cdefs.h>
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| 40 | #include <iprt/assert.h>
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| 41 |
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| 42 | void APIENTRY glInterleavedArrays (GLenum format, GLsizei stride, const GLvoid *pointer)
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| 43 | {
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| 44 | GLboolean tflag, cflag, nflag; /* enable/disable flags */
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| 45 | GLint tcomps, ccomps, vcomps; /* components per texcoord, color, vertex */
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| 46 | GLenum ctype = 0; /* color type */
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| 47 | GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
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| 48 | const GLint toffset = 0; /* always zero */
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| 49 | GLint defstride; /* default stride */
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| 50 | GLint c, f;
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| 51 |
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| 52 | f = sizeof(GLfloat);
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| 53 | c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
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| 54 |
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| 55 | if (stride < 0) {
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| 56 | glLogError(GL_INVALID_VALUE);
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| 57 | return;
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| 58 | }
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| 59 |
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| 60 | switch (format) {
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| 61 | case GL_V2F:
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| 62 | tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE;
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| 63 | tcomps = 0; ccomps = 0; vcomps = 2;
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| 64 | voffset = 0;
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| 65 | defstride = 2*f;
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| 66 | break;
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| 67 | case GL_V3F:
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| 68 | tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE;
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| 69 | tcomps = 0; ccomps = 0; vcomps = 3;
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| 70 | voffset = 0;
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| 71 | defstride = 3*f;
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| 72 | break;
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| 73 | case GL_C4UB_V2F:
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| 74 | tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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| 75 | tcomps = 0; ccomps = 4; vcomps = 2;
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| 76 | ctype = GL_UNSIGNED_BYTE;
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| 77 | coffset = 0;
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| 78 | voffset = c;
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| 79 | defstride = c + 2*f;
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| 80 | break;
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| 81 | case GL_C4UB_V3F:
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| 82 | tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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| 83 | tcomps = 0; ccomps = 4; vcomps = 3;
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| 84 | ctype = GL_UNSIGNED_BYTE;
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| 85 | coffset = 0;
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| 86 | voffset = c;
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| 87 | defstride = c + 3*f;
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| 88 | break;
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| 89 | case GL_C3F_V3F:
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| 90 | tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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| 91 | tcomps = 0; ccomps = 3; vcomps = 3;
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| 92 | ctype = GL_FLOAT;
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| 93 | coffset = 0;
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| 94 | voffset = 3*f;
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| 95 | defstride = 6*f;
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| 96 | break;
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| 97 | case GL_N3F_V3F:
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| 98 | tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_TRUE;
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| 99 | tcomps = 0; ccomps = 0; vcomps = 3;
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| 100 | noffset = 0;
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| 101 | voffset = 3*f;
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| 102 | defstride = 6*f;
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| 103 | break;
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| 104 | case GL_C4F_N3F_V3F:
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| 105 | tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_TRUE;
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| 106 | tcomps = 0; ccomps = 4; vcomps = 3;
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| 107 | ctype = GL_FLOAT;
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| 108 | coffset = 0;
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| 109 | noffset = 4*f;
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| 110 | voffset = 7*f;
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| 111 | defstride = 10*f;
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| 112 | break;
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| 113 | case GL_T2F_V3F:
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| 114 | tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE;
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| 115 | tcomps = 2; ccomps = 0; vcomps = 3;
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| 116 | voffset = 2*f;
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| 117 | defstride = 5*f;
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| 118 | break;
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| 119 | case GL_T4F_V4F:
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| 120 | tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE;
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| 121 | tcomps = 4; ccomps = 0; vcomps = 4;
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| 122 | voffset = 4*f;
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| 123 | defstride = 8*f;
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| 124 | break;
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| 125 | case GL_T2F_C4UB_V3F:
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| 126 | tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE;
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| 127 | tcomps = 2; ccomps = 4; vcomps = 3;
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| 128 | ctype = GL_UNSIGNED_BYTE;
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| 129 | coffset = 2*f;
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| 130 | voffset = c+2*f;
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| 131 | defstride = c+5*f;
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| 132 | break;
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| 133 | case GL_T2F_C3F_V3F:
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| 134 | tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE;
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| 135 | tcomps = 2; ccomps = 3; vcomps = 3;
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| 136 | ctype = GL_FLOAT;
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| 137 | coffset = 2*f;
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| 138 | voffset = 5*f;
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| 139 | defstride = 8*f;
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| 140 | break;
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| 141 | case GL_T2F_N3F_V3F:
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| 142 | tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_TRUE;
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| 143 | tcomps = 2; ccomps = 0; vcomps = 3;
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| 144 | noffset = 2*f;
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| 145 | voffset = 5*f;
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| 146 | defstride = 8*f;
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| 147 | break;
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| 148 | case GL_T2F_C4F_N3F_V3F:
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| 149 | tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE;
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| 150 | tcomps = 2; ccomps = 4; vcomps = 3;
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| 151 | ctype = GL_FLOAT;
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| 152 | coffset = 2*f;
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| 153 | noffset = 6*f;
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| 154 | voffset = 9*f;
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| 155 | defstride = 12*f;
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| 156 | break;
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| 157 | case GL_T4F_C4F_N3F_V4F:
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| 158 | tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE;
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| 159 | tcomps = 4; ccomps = 4; vcomps = 4;
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| 160 | ctype = GL_FLOAT;
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| 161 | coffset = 4*f;
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| 162 | noffset = 8*f;
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| 163 | voffset = 11*f;
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| 164 | defstride = 15*f;
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| 165 | break;
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| 166 | default:
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| 167 | glLogError(GL_INVALID_ENUM);
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| 168 | return;
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| 169 | }
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| 170 |
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| 171 | if (stride==0) {
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| 172 | stride = defstride;
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| 173 | }
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| 174 |
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| 175 | glDisableClientState( GL_EDGE_FLAG_ARRAY );
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| 176 | glDisableClientState( GL_INDEX_ARRAY );
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| 177 | /* XXX also disable secondary color and generic arrays? */
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| 178 |
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| 179 | /* Texcoords */
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| 180 | if (tflag) {
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| 181 | glEnableClientState( GL_TEXTURE_COORD_ARRAY );
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| 182 | glTexCoordPointer( tcomps, GL_FLOAT, stride, (GLubyte *) pointer + toffset );
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| 183 | }
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| 184 | else {
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| 185 | glDisableClientState( GL_TEXTURE_COORD_ARRAY );
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| 186 | }
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| 187 |
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| 188 | /* Color */
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| 189 | if (cflag) {
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| 190 | glEnableClientState( GL_COLOR_ARRAY );
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| 191 | glColorPointer( ccomps, ctype, stride, (GLubyte *) pointer + coffset );
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| 192 | }
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| 193 | else {
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| 194 | glDisableClientState( GL_COLOR_ARRAY );
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| 195 | }
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| 196 |
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| 197 |
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| 198 | /* Normals */
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| 199 | if (nflag) {
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| 200 | glEnableClientState( GL_NORMAL_ARRAY );
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| 201 | glNormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
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| 202 | }
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| 203 | else {
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| 204 | glDisableClientState( GL_NORMAL_ARRAY );
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| 205 | }
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| 206 |
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| 207 | /* Vertices */
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| 208 | glEnableClientState( GL_VERTEX_ARRAY );
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| 209 | glVertexPointer( vcomps, GL_FLOAT, stride, (GLubyte *) pointer + voffset );
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| 210 | }
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