Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 55 | pj | 1 | /* $Id: lines.c,v 1.1 2003-02-28 11:42:03 pj Exp $ */ |
| 2 | |||
| 3 | /* |
||
| 4 | * Mesa 3-D graphics library |
||
| 5 | * Version: 3.5 |
||
| 6 | * |
||
| 7 | * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
||
| 8 | * |
||
| 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: |
||
| 15 | * |
||
| 16 | * The above copyright notice and this permission notice shall be included |
||
| 17 | * in all copies or substantial portions of the Software. |
||
| 18 | * |
||
| 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. |
||
| 25 | */ |
||
| 26 | |||
| 27 | |||
| 28 | #include "glheader.h" |
||
| 29 | #include "context.h" |
||
| 30 | #include "depth.h" |
||
| 31 | #include "lines.h" |
||
| 32 | #include "macros.h" |
||
| 33 | #include "mmath.h" |
||
| 34 | #include "texstate.h" |
||
| 35 | #include "mtypes.h" |
||
| 36 | |||
| 37 | |||
| 38 | void |
||
| 39 | _mesa_LineWidth( GLfloat width ) |
||
| 40 | { |
||
| 41 | GET_CURRENT_CONTEXT(ctx); |
||
| 42 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
||
| 43 | |||
| 44 | if (width<=0.0) { |
||
| 45 | _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); |
||
| 46 | return; |
||
| 47 | } |
||
| 48 | |||
| 49 | if (ctx->Line.Width == width) |
||
| 50 | return; |
||
| 51 | |||
| 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); |
||
| 57 | |||
| 58 | |||
| 59 | if (width != 1.0) |
||
| 60 | ctx->_TriangleCaps |= DD_LINE_WIDTH; |
||
| 61 | else |
||
| 62 | ctx->_TriangleCaps &= ~DD_LINE_WIDTH; |
||
| 63 | |||
| 64 | if (ctx->Driver.LineWidth) |
||
| 65 | (*ctx->Driver.LineWidth)(ctx, width); |
||
| 66 | } |
||
| 67 | |||
| 68 | |||
| 69 | |||
| 70 | void |
||
| 71 | _mesa_LineStipple( GLint factor, GLushort pattern ) |
||
| 72 | { |
||
| 73 | GET_CURRENT_CONTEXT(ctx); |
||
| 74 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
||
| 75 | |||
| 76 | factor = CLAMP( factor, 1, 256 ); |
||
| 77 | |||
| 78 | if (ctx->Line.StippleFactor == factor && |
||
| 79 | ctx->Line.StipplePattern == pattern) |
||
| 80 | return; |
||
| 81 | |||
| 82 | FLUSH_VERTICES(ctx, _NEW_LINE); |
||
| 83 | ctx->Line.StippleFactor = factor; |
||
| 84 | ctx->Line.StipplePattern = pattern; |
||
| 85 | |||
| 86 | if (ctx->Driver.LineStipple) |
||
| 87 | ctx->Driver.LineStipple( ctx, factor, pattern ); |
||
| 88 | } |