1 /* $Id: lines.c,v 1.28 2001/03/03 20:33:27 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2000 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.
44 _mesa_LineWidth( GLfloat width
)
46 GET_CURRENT_CONTEXT(ctx
);
47 ASSERT_OUTSIDE_BEGIN_END(ctx
);
50 _mesa_error( ctx
, GL_INVALID_VALUE
, "glLineWidth" );
54 if (ctx
->Line
.Width
== width
)
57 FLUSH_VERTICES(ctx
, _NEW_LINE
);
58 ctx
->Line
.Width
= width
;
59 ctx
->Line
._Width
= CLAMP(width
,
60 ctx
->Const
.MinLineWidth
,
61 ctx
->Const
.MaxLineWidth
);
65 ctx
->_TriangleCaps
|= DD_LINE_WIDTH
;
67 ctx
->_TriangleCaps
&= ~DD_LINE_WIDTH
;
69 if (ctx
->Driver
.LineWidth
)
70 (*ctx
->Driver
.LineWidth
)(ctx
, width
);
76 _mesa_LineStipple( GLint factor
, GLushort pattern
)
78 GET_CURRENT_CONTEXT(ctx
);
79 ASSERT_OUTSIDE_BEGIN_END(ctx
);
81 factor
= CLAMP( factor
, 1, 256 );
83 if (ctx
->Line
.StippleFactor
== factor
&&
84 ctx
->Line
.StipplePattern
== pattern
)
87 FLUSH_VERTICES(ctx
, _NEW_LINE
);
88 ctx
->Line
.StippleFactor
= factor
;
89 ctx
->Line
.StipplePattern
= pattern
;
91 if (ctx
->Driver
.LineStipple
)
92 ctx
->Driver
.LineStipple( ctx
, factor
, pattern
);