1 /* $Id: lines.c,v 1.30 2002/10/24 23:57:21 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
39 _mesa_LineWidth( GLfloat width
)
41 GET_CURRENT_CONTEXT(ctx
);
42 ASSERT_OUTSIDE_BEGIN_END(ctx
);
45 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLineWidth" );
49 if (ctx
->Line
.Width
== width
)
52 FLUSH_VERTICES(ctx
, _NEW_LINE
);
53 ctx
->Line
.Width
= width
;
54 ctx
->Line
._Width
= CLAMP(width
,
55 ctx
->Const
.MinLineWidth
,
56 ctx
->Const
.MaxLineWidth
);
60 ctx
->_TriangleCaps
|= DD_LINE_WIDTH
;
62 ctx
->_TriangleCaps
&= ~DD_LINE_WIDTH
;
64 if (ctx
->Driver
.LineWidth
)
65 (*ctx
->Driver
.LineWidth
)(ctx
, width
);
71 _mesa_LineStipple( GLint factor
, GLushort pattern
)
73 GET_CURRENT_CONTEXT(ctx
);
74 ASSERT_OUTSIDE_BEGIN_END(ctx
);
76 factor
= CLAMP( factor
, 1, 256 );
78 if (ctx
->Line
.StippleFactor
== factor
&&
79 ctx
->Line
.StipplePattern
== pattern
)
82 FLUSH_VERTICES(ctx
, _NEW_LINE
);
83 ctx
->Line
.StippleFactor
= factor
;
84 ctx
->Line
.StipplePattern
= pattern
;
86 if (ctx
->Driver
.LineStipple
)
87 ctx
->Driver
.LineStipple( ctx
, factor
, pattern
);