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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 58 | pj | 1 | /* $Id: t_dd_imm_primtmp.h,v 1.1 2003-02-28 11:54:02 pj Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 3.5 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
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| 8 | * |
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 10 | * copy of this software and associated documentation files (the "Software"), |
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| 11 | * to deal in the Software without restriction, including without limitation |
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 14 | * Software is furnished to do so, subject to the following conditions: |
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| 15 | * |
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| 16 | * The above copyright notice and this permission notice shall be included |
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| 17 | * in all copies or substantial portions of the Software. |
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| 18 | * |
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | * Authors: |
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| 27 | * Keith Whitwell <keithw@valinux.com> |
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| 28 | * Gareth Hughes <gareth@valinux.com> |
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| 29 | */ |
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| 30 | |||
| 31 | /* Template for immediate mode vertices. |
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| 32 | * |
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| 33 | * Probably instantiate once for each vertex format used: |
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| 34 | * - TINY_VERTICES |
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| 35 | * - TEX0_VERTICES |
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| 36 | * - TEX1_VERTICES |
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| 37 | * - PTEX_VERTICES |
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| 38 | * |
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| 39 | * Have to handle TEX->PTEX transition somehow. |
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| 40 | */ |
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| 41 | |||
| 42 | #define DBG 0 |
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| 43 | |||
| 44 | |||
| 45 | |||
| 46 | /* ============================================================= |
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| 47 | * GL_POINTS |
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| 48 | */ |
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| 49 | |||
| 50 | static void TAG(flush_point_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 51 | { |
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| 52 | if ( !v0->mask ) { |
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| 53 | LOCAL_VARS; |
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| 54 | DRAW_POINT( v0 ); |
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| 55 | } |
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| 56 | } |
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| 57 | |||
| 58 | |||
| 59 | /* ============================================================= |
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| 60 | * GL_LINES |
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| 61 | */ |
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| 62 | |||
| 63 | static void TAG(flush_line_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 64 | |||
| 65 | static void TAG(flush_line_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 66 | { |
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| 67 | LOCAL_VARS; |
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| 68 | FLUSH_VERTEX = TAG(flush_line_1); |
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| 69 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 70 | } |
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| 71 | |||
| 72 | static void TAG(flush_line_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 73 | { |
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| 74 | LOCAL_VARS; |
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| 75 | TNL_VERTEX *v1 = v0 - 1; |
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| 76 | ACTIVE_VERTEX = IMM_VERTICES( 0 ); |
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| 77 | FLUSH_VERTEX = TAG(flush_line_0); |
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| 78 | if (FALLBACK_OR_CLIPPING) |
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| 79 | CLIP_OR_DRAW_LINE( ctx, v1, v0 ); |
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| 80 | else |
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| 81 | DRAW_LINE( ctx, v1, v0 ); |
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| 82 | } |
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| 83 | |||
| 84 | |||
| 85 | /* ============================================================= |
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| 86 | * GL_LINE_LOOP |
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| 87 | */ |
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| 88 | |||
| 89 | static void TAG(flush_line_loop_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 90 | static void TAG(flush_line_loop_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 91 | |||
| 92 | static void TAG(flush_line_loop_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 93 | { |
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| 94 | LOCAL_VARS; |
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| 95 | |||
| 96 | ACTIVE_VERTEX = v0 + 1; |
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| 97 | FLUSH_VERTEX = TAG(flush_line_loop_1); |
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| 98 | } |
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| 99 | |||
| 100 | #define DRAW_LINELOOP_LINE( a, b ) \ |
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| 101 | if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING) { \ |
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| 102 | CLIP_OR_DRAW_LINE( ctx, a, b ); \ |
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| 103 | } else if (EXTEND_PRIM( 1 )) { \ |
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| 104 | EMIT_VERTEX( b ); \ |
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| 105 | } else { \ |
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| 106 | BEGIN_PRIM( GL_LINE_STRIP, 2 ); \ |
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| 107 | EMIT_VERTEX( a ); \ |
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| 108 | EMIT_VERTEX( b ); \ |
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| 109 | } |
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| 110 | |||
| 111 | static void TAG(flush_line_loop_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 112 | { |
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| 113 | LOCAL_VARS; |
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| 114 | TNL_VERTEX *v1 = v0 - 1; |
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| 115 | ACTIVE_VERTEX = v1; |
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| 116 | FLUSH_VERTEX = TAG(flush_line_loop_2); |
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| 117 | DRAW_LINELOOP_LINE( v1, v0 ); |
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| 118 | } |
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| 119 | |||
| 120 | static void TAG(flush_line_loop_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 121 | { |
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| 122 | LOCAL_VARS; |
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| 123 | TNL_VERTEX *v1 = v0 + 1; |
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| 124 | ACTIVE_VERTEX = v1; |
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| 125 | FLUSH_VERTEX = TAG(flush_line_loop_1); |
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| 126 | DRAW_LINELOOP_LINE( v1, v0 ); |
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| 127 | } |
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| 128 | |||
| 129 | static void TAG(end_line_loop)( GLcontext *ctx ) |
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| 130 | { |
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| 131 | LOCAL_VARS; |
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| 132 | |||
| 133 | if ( FLUSH_VERTEX != TAG(flush_line_loop_0) ) { |
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| 134 | TNL_VERTEX *v1 = ACTIVE_VERTEX; |
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| 135 | TNL_VERTEX *v0 = IMM_VERTICES( 0 ); |
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| 136 | DRAW_LINELOOP_LINE( v1, v0 ); |
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| 137 | } |
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| 138 | } |
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| 139 | |||
| 140 | |||
| 141 | |||
| 142 | /* ============================================================= |
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| 143 | * GL_LINE_STRIP |
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| 144 | */ |
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| 145 | |||
| 146 | static void TAG(flush_line_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 147 | static void TAG(flush_line_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 148 | |||
| 149 | static void TAG(flush_line_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 150 | { |
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| 151 | LOCAL_VARS; |
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| 152 | |||
| 153 | ACTIVE_VERTEX = v0 + 1; |
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| 154 | FLUSH_VERTEX = TAG(flush_line_strip_0b); |
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| 155 | } |
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| 156 | |||
| 157 | |||
| 158 | static void TAG(flush_line_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 159 | { |
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| 160 | LOCAL_VARS; |
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| 161 | TNL_VERTEX *v1 = v0 - 1; |
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| 162 | |||
| 163 | ACTIVE_VERTEX = v1; |
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| 164 | FLUSH_VERTEX = TAG(flush_line_strip_2); |
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| 165 | |||
| 166 | if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING) |
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| 167 | CLIP_OR_DRAW_LINE( ctx, v1, v0 ); |
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| 168 | else if (EXTEND_PRIM( 1 )) { |
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| 169 | EMIT_VERTEX( v0 ); |
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| 170 | } else { |
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| 171 | BEGIN_PRIM( GL_LINE_STRIP, 2 ); |
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| 172 | EMIT_VERTEX( v1 ); |
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| 173 | EMIT_VERTEX( v0 ); |
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| 174 | } |
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| 175 | } |
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| 176 | |||
| 177 | static void TAG(flush_line_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 178 | { |
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| 179 | LOCAL_VARS; |
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| 180 | TNL_VERTEX *v1 = v0 + 1; |
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| 181 | |||
| 182 | ACTIVE_VERTEX = v1; |
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| 183 | FLUSH_VERTEX = TAG(flush_line_strip_1); |
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| 184 | |||
| 185 | if (!HAVE_LINE_STRIP || FALLBACK_OR_CLIPPING) |
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| 186 | CLIP_OR_DRAW_LINE( ctx, v1, v0 ); |
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| 187 | else if (EXTEND_PRIM( 1 )) { |
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| 188 | EMIT_VERTEX( v0 ); |
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| 189 | } else { |
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| 190 | BEGIN_PRIM( GL_LINE_STRIP, 2 ); |
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| 191 | EMIT_VERTEX( v1 ); |
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| 192 | EMIT_VERTEX( v0 ); |
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| 193 | } |
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| 194 | } |
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| 195 | |||
| 196 | |||
| 197 | |||
| 198 | /* ============================================================= |
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| 199 | * GL_TRIANGLES |
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| 200 | */ |
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| 201 | |||
| 202 | static void TAG(flush_triangle_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 203 | static void TAG(flush_triangle_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 204 | |||
| 205 | static void TAG(flush_triangle_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 206 | { |
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| 207 | LOCAL_VARS; |
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| 208 | |||
| 209 | if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" ); |
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| 210 | |||
| 211 | ACTIVE_VERTEX = v0 + 1; |
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| 212 | FLUSH_VERTEX = TAG(flush_triangle_1); |
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| 213 | BEGIN_PRIM( GL_TRIANGLES, 0 ); |
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| 214 | } |
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| 215 | |||
| 216 | static void TAG(flush_triangle_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 217 | { |
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| 218 | LOCAL_VARS; |
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| 219 | |||
| 220 | if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" ); |
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| 221 | |||
| 222 | ACTIVE_VERTEX = v0 + 1; |
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| 223 | FLUSH_VERTEX = TAG(flush_triangle_2); |
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| 224 | } |
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| 225 | |||
| 226 | static void TAG(flush_triangle_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 227 | { |
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| 228 | LOCAL_VARS; |
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| 229 | TNL_VERTEX *v2 = v0 - 2; |
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| 230 | TNL_VERTEX *v1 = v0 - 1; |
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| 231 | |||
| 232 | if ( DBG ) fprintf( stderr, __FUNCTION__ "\n" ); |
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| 233 | |||
| 234 | ACTIVE_VERTEX = v2; |
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| 235 | FLUSH_VERTEX = TAG(flush_triangle_0); |
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| 236 | |||
| 237 | /* nothing gained by trying to emit as hw primitives -- that |
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| 238 | * happens normally in this case. |
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| 239 | */ |
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| 240 | if (FALLBACK_OR_CLIPPING) |
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| 241 | CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 ); |
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| 242 | else |
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| 243 | DRAW_TRI( ctx, v2, v1, v0 ); |
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| 244 | } |
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| 245 | |||
| 246 | |||
| 247 | |||
| 248 | |||
| 249 | /* ============================================================= |
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| 250 | * GL_TRIANGLE_STRIP |
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| 251 | */ |
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| 252 | |||
| 253 | static void TAG(flush_tri_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 254 | static void TAG(flush_tri_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 255 | static void TAG(flush_tri_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 256 | |||
| 257 | static void TAG(flush_tri_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 258 | { |
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| 259 | LOCAL_VARS; |
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| 260 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 261 | FLUSH_VERTEX = TAG(flush_tri_strip_1); |
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| 262 | } |
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| 263 | |||
| 264 | static void TAG(flush_tri_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 265 | { |
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| 266 | LOCAL_VARS; |
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| 267 | ACTIVE_VERTEX = IMM_VERTICES( 2 ); |
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| 268 | FLUSH_VERTEX = TAG(flush_tri_strip_2); |
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| 269 | } |
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| 270 | |||
| 271 | #define DO_TRISTRIP_TRI( vert0, vert1 ) \ |
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| 272 | if (!HAVE_TRI_STRIP || FALLBACK_OR_CLIPPING) { \ |
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| 273 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 274 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 275 | TAG(draw_tri)( ctx, v2, v1, v0 ); \ |
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| 276 | } else if (EXTEND_PRIM( 1 )) { \ |
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| 277 | EMIT_VERTEX( v0 ); \ |
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| 278 | } else { \ |
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| 279 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 280 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 281 | BEGIN_PRIM( GL_TRIANGLE_STRIP, 3 ); \ |
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| 282 | EMIT_VERTEX( v2 ); \ |
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| 283 | EMIT_VERTEX( v1 ); \ |
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| 284 | EMIT_VERTEX( v0 ); \ |
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| 285 | } |
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| 286 | |||
| 287 | static void TAG(flush_tri_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 288 | { |
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| 289 | LOCAL_VARS; |
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| 290 | FLUSH_VERTEX = TAG(flush_tri_strip_3); |
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| 291 | ACTIVE_VERTEX = IMM_VERTICES( 3 ); |
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| 292 | DO_TRISTRIP_TRI( 0, 1 ); |
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| 293 | } |
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| 294 | |||
| 295 | static void TAG(flush_tri_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 296 | { |
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| 297 | LOCAL_VARS; |
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| 298 | FLUSH_VERTEX = TAG(flush_tri_strip_4); |
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| 299 | ACTIVE_VERTEX = IMM_VERTICES( 0 ); |
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| 300 | DO_TRISTRIP_TRI( 1, 2 ); |
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| 301 | } |
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| 302 | |||
| 303 | static void TAG(flush_tri_strip_4)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 304 | { |
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| 305 | LOCAL_VARS; |
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| 306 | FLUSH_VERTEX = TAG(flush_tri_strip_5); |
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| 307 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 308 | DO_TRISTRIP_TRI( 2, 3 ); |
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| 309 | } |
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| 310 | |||
| 311 | static void TAG(flush_tri_strip_5)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 312 | { |
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| 313 | LOCAL_VARS; |
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| 314 | FLUSH_VERTEX = TAG(flush_tri_strip_2); |
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| 315 | ACTIVE_VERTEX = IMM_VERTICES( 2 ); |
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| 316 | DO_TRISTRIP_TRI( 0, 3 ); |
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| 317 | } |
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| 318 | |||
| 319 | |||
| 320 | |||
| 321 | /* ============================================================= |
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| 322 | * GL_TRIANGLE_FAN |
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| 323 | */ |
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| 324 | |||
| 325 | static void TAG(flush_tri_fan_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 326 | static void TAG(flush_tri_fan_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 327 | |||
| 328 | static void TAG(flush_tri_fan_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 329 | { |
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| 330 | LOCAL_VARS; |
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| 331 | |||
| 332 | ACTIVE_VERTEX = v0 + 1; |
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| 333 | FLUSH_VERTEX = TAG(flush_tri_fan_1); |
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| 334 | } |
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| 335 | |||
| 336 | static void TAG(flush_tri_fan_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 337 | { |
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| 338 | LOCAL_VARS; |
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| 339 | |||
| 340 | ACTIVE_VERTEX = v0 + 1; |
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| 341 | FLUSH_VERTEX = TAG(flush_tri_fan_2); |
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| 342 | } |
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| 343 | |||
| 344 | #define DO_TRIFAN_TRI( vert0, vert1 ) \ |
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| 345 | if (!HAVE_TRI_FAN || FALLBACK_OR_CLIPPING) { \ |
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| 346 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 347 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 348 | TAG(draw_tri)( ctx, v2, v1, v0 ); \ |
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| 349 | } else if (EXTEND_PRIM( 1 )) { \ |
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| 350 | EMIT_VERTEX( v0 ); \ |
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| 351 | } else { \ |
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| 352 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 353 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 354 | BEGIN_PRIM( GL_TRIANGLE_FAN, 3 ); \ |
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| 355 | EMIT_VERTEX( v2 ); \ |
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| 356 | EMIT_VERTEX( v1 ); \ |
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| 357 | EMIT_VERTEX( v0 ); \ |
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| 358 | } |
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| 359 | |||
| 360 | static void TAG(flush_tri_fan_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 361 | { |
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| 362 | LOCAL_VARS; |
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| 363 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 364 | FLUSH_VERTEX = TAG(flush_tri_fan_3 ); |
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| 365 | DO_TRIFAN_TRI( 0, 1 ); |
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| 366 | } |
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| 367 | |||
| 368 | static void TAG(flush_tri_fan_3)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 369 | { |
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| 370 | LOCAL_VARS; |
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| 371 | ACTIVE_VERTEX = IMM_VERTICES( 2 ); |
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| 372 | FLUSH_VERTEX = TAG(flush_tri_fan_2 ); |
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| 373 | DO_TRIFAN_TRI( 0, 2 ); |
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| 374 | } |
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| 375 | |||
| 376 | |||
| 377 | |||
| 378 | /* ============================================================= |
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| 379 | * GL_QUADS |
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| 380 | */ |
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| 381 | |||
| 382 | static void TAG(flush_quad_3)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 383 | static void TAG(flush_quad_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 384 | static void TAG(flush_quad_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 385 | |||
| 386 | static void TAG(flush_quad_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 387 | { |
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| 388 | LOCAL_VARS; |
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| 389 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 390 | FLUSH_VERTEX = TAG(flush_quad_1); |
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| 391 | } |
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| 392 | |||
| 393 | static void TAG(flush_quad_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 394 | { |
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| 395 | LOCAL_VARS; |
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| 396 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 397 | FLUSH_VERTEX = TAG(flush_quad_2); |
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| 398 | } |
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| 399 | |||
| 400 | static void TAG(flush_quad_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 401 | { |
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| 402 | LOCAL_VARS; |
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| 403 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 404 | FLUSH_VERTEX = TAG(flush_quad_3); |
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| 405 | } |
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| 406 | |||
| 407 | static void TAG(flush_quad_3)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 408 | { |
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| 409 | LOCAL_VARS; |
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| 410 | TNL_VERTEX *v3 = v0 - 3; |
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| 411 | TNL_VERTEX *v2 = v0 - 2; |
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| 412 | TNL_VERTEX *v1 = v0 - 1; |
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| 413 | |||
| 414 | IMM_VERTEX( v0 ) = v3; |
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| 415 | FLUSH_VERTEX = TAG(flush_quad_0); |
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| 416 | |||
| 417 | if (!HAVE_HW_QUADS || FALLBACK_OR_CLIPPING) { |
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| 418 | CLIP_OR_DRAW_TRI( ctx, v3, v2, v0 ); |
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| 419 | CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 ); |
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| 420 | } else { |
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| 421 | EXTEND_PRIM_NF( GL_QUADS, 4 ); |
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| 422 | EMIT_VERTEX( v3 ); |
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| 423 | EMIT_VERTEX( v2 ); |
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| 424 | EMIT_VERTEX( v1 ); |
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| 425 | EMIT_VERTEX( v0 ); |
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| 426 | } |
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| 427 | } |
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| 428 | |||
| 429 | |||
| 430 | |||
| 431 | /* ============================================================= |
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| 432 | * GL_QUAD_STRIP |
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| 433 | */ |
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| 434 | |||
| 435 | static void TAG(flush_quad_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 436 | static void TAG(flush_quad_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 437 | static void TAG(flush_quad_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 438 | |||
| 439 | static void TAG(flush_quad_strip_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 440 | { |
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| 441 | LOCAL_VARS; |
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| 442 | |||
| 443 | IMM_VERTEX( v3 ) = v0; |
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| 444 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 445 | FLUSH_VERTEX = TAG(flush_quad_strip_1); |
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| 446 | } |
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| 447 | |||
| 448 | static void TAG(flush_quad_strip_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 449 | { |
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| 450 | LOCAL_VARS; |
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| 451 | |||
| 452 | IMM_VERTEX( v2 ) = v0; |
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| 453 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 454 | FLUSH_VERTEX = TAG(flush_quad_strip_2); |
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| 455 | } |
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| 456 | |||
| 457 | static void TAG(flush_quad_strip_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 458 | { |
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| 459 | LOCAL_VARS; |
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| 460 | |||
| 461 | IMM_VERTEX( v1 ) = v0; |
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| 462 | IMM_VERTEX( v0 ) = v0 + 1; |
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| 463 | FLUSH_VERTEX = TAG(flush_quad_strip_3); |
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| 464 | } |
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| 465 | |||
| 466 | static void TAG(flush_quad_strip_3)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 467 | { |
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| 468 | LOCAL_VARS; |
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| 469 | TNL_VERTEX *v3 = IMM_VERTEX( v3 ); |
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| 470 | TNL_VERTEX *v2 = IMM_VERTEX( v2 ); |
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| 471 | TNL_VERTEX *v1 = IMM_VERTEX( v1 ); |
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| 472 | |||
| 473 | IMM_VERTEX( v0 ) = v3; |
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| 474 | IMM_VERTEX( v2 ) = v0; |
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| 475 | IMM_VERTEX( v3 ) = v1; |
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| 476 | FLUSH_VERTEX = TAG(flush_quad_strip_2); |
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| 477 | |||
| 478 | if (FALLBACK_OR_CLIPPING) { |
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| 479 | CLIP_OR_DRAW_TRI( ctx, v3, v2, v0 ); |
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| 480 | CLIP_OR_DRAW_TRI( ctx, v2, v1, v0 ); |
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| 481 | } else { |
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| 482 | DRAW_TRI( ctx, v3, v2, v0 ); |
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| 483 | DRAW_TRI( ctx, v2, v1, v0 ); |
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| 484 | } |
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| 485 | } |
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| 486 | |||
| 487 | |||
| 488 | |||
| 489 | /* ============================================================= |
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| 490 | * GL_POLYGON |
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| 491 | */ |
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| 492 | |||
| 493 | static void TAG(flush_poly_2)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 494 | static void TAG(flush_poly_1)( GLcontext *ctx, TNL_VERTEX *v0 ); |
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| 495 | |||
| 496 | static void TAG(flush_poly_0)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 497 | { |
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| 498 | LOCAL_VARS; |
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| 499 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 500 | FLUSH_VERTEX = TAG(flush_poly_1); |
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| 501 | } |
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| 502 | |||
| 503 | static void TAG(flush_poly_1)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 504 | { |
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| 505 | LOCAL_VARS; |
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| 506 | ACTIVE_VERTEX = IMM_VERTICES( 2 ); |
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| 507 | FLUSH_VERTEX = TAG(flush_poly_2); |
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| 508 | } |
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| 509 | |||
| 510 | #define DO_POLY_TRI( vert0, vert1 ) \ |
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| 511 | if (!HAVE_POLYGONS || FALLBACK_OR_CLIPPING) { \ |
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| 512 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 513 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 514 | TAG(draw_tri)( ctx, v1, v0, v2 ); \ |
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| 515 | } else if (EXTEND_PRIM( 1 )) { \ |
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| 516 | EMIT_VERTEX( v0 ); \ |
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| 517 | } else { \ |
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| 518 | TNL_VERTEX *v2 = IMM_VERTICES( vert0 ); \ |
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| 519 | TNL_VERTEX *v1 = IMM_VERTICES( vert1 ); \ |
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| 520 | BEGIN_PRIM( GL_POLYGON, 3 ); \ |
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| 521 | EMIT_VERTEX( v2 ); \ |
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| 522 | EMIT_VERTEX( v1 ); \ |
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| 523 | EMIT_VERTEX( v0 ); \ |
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| 524 | } |
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| 525 | |||
| 526 | static void TAG(flush_poly_2)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 527 | { |
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| 528 | LOCAL_VARS; |
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| 529 | ACTIVE_VERTEX = IMM_VERTICES( 1 ); |
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| 530 | FLUSH_VERTEX = TAG(flush_poly_3); |
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| 531 | DO_POLY_TRI( 0, 1 ); |
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| 532 | } |
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| 533 | |||
| 534 | static void TAG(flush_poly_3)( GLcontext *ctx, TNL_VERTEX *v0 ) |
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| 535 | { |
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| 536 | LOCAL_VARS; |
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| 537 | ACTIVE_VERTEX = IMM_VERTICES( 2 ); |
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| 538 | FLUSH_VERTEX = TAG(flush_poly_2); |
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| 539 | DO_POLY_TRI( 0, 2 ); |
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| 540 | } |
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| 541 | |||
| 542 | |||
| 543 | void (*TAG(flush_tab)[GL_POLYGON+1])( GLcontext *, TNL_VERTEX * ) = |
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| 544 | { |
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| 545 | TAG(flush_point), |
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| 546 | TAG(flush_line_0), |
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| 547 | TAG(flush_line_loop_0), |
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| 548 | TAG(flush_line_strip_0), |
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| 549 | TAG(flush_triangle_0), |
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| 550 | TAG(flush_tri_strip_0), |
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| 551 | TAG(flush_tri_fan_0), |
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| 552 | TAG(flush_quad_0), |
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| 553 | TAG(flush_quad_strip_0), |
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| 554 | TAG(flush_poly_0), |
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| 555 | }; |
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| 556 | |||
| 557 | |||
| 558 | #ifndef PRESERVE_PRIM_DEFS |
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| 559 | #undef LOCAL_VARS |
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| 560 | #undef GET_INTERP_FUNC |
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| 561 | #undef IMM_VERTEX |
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| 562 | #undef IMM_VERTICES |
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| 563 | #undef FLUSH_VERTEX |
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| 564 | #endif |
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| 565 | #undef PRESERVE_PRIM_DEFS |
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| 566 | #undef EXTEND_PRIM |
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| 567 | #undef EMIT_VERTEX |
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| 568 | #undef EMIT_VERTEX_TRI |
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| 569 | #undef EMIT_VERTEX_LINE |
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| 570 | #undef EMIT_VERTEX_POINT |
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| 571 | #undef TAG |