Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1901 | serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
||
| 3 | * Version: 6.5.3 |
||
| 4 | * |
||
| 5 | * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. |
||
| 6 | * |
||
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 8 | * copy of this software and associated documentation files (the "Software"), |
||
| 9 | * to deal in the Software without restriction, including without limitation |
||
| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
||
| 12 | * Software is furnished to do so, subject to the following conditions: |
||
| 13 | * |
||
| 14 | * The above copyright notice and this permission notice shall be included |
||
| 15 | * in all copies or substantial portions of the Software. |
||
| 16 | * |
||
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
| 20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
||
| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
||
| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 23 | */ |
||
| 24 | |||
| 25 | |||
| 26 | #include "glheader.h" |
||
| 27 | #include "context.h" |
||
| 28 | #include "lines.h" |
||
| 29 | #include "macros.h" |
||
| 30 | #include "mtypes.h" |
||
| 31 | |||
| 32 | |||
| 33 | /** |
||
| 34 | * Set the line width. |
||
| 35 | * |
||
| 36 | * \param width line width in pixels. |
||
| 37 | * |
||
| 38 | * \sa glLineWidth(). |
||
| 39 | */ |
||
| 40 | void GLAPIENTRY |
||
| 41 | _mesa_LineWidth( GLfloat width ) |
||
| 42 | { |
||
| 43 | GET_CURRENT_CONTEXT(ctx); |
||
| 44 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
||
| 45 | |||
| 46 | if (width<=0.0) { |
||
| 47 | _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" ); |
||
| 48 | return; |
||
| 49 | } |
||
| 50 | |||
| 51 | if (ctx->Line.Width == width) |
||
| 52 | return; |
||
| 53 | |||
| 54 | FLUSH_VERTICES(ctx, _NEW_LINE); |
||
| 55 | ctx->Line.Width = width; |
||
| 56 | |||
| 57 | if (ctx->Driver.LineWidth) |
||
| 58 | ctx->Driver.LineWidth(ctx, width); |
||
| 59 | } |
||
| 60 | |||
| 61 | |||
| 62 | /** |
||
| 63 | * Set the line stipple pattern. |
||
| 64 | * |
||
| 65 | * \param factor pattern scale factor. |
||
| 66 | * \param pattern bit pattern. |
||
| 67 | * |
||
| 68 | * \sa glLineStipple(). |
||
| 69 | * |
||
| 70 | * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On |
||
| 71 | * change flushes the vertices and notifies the driver via |
||
| 72 | * the dd_function_table::LineStipple callback. |
||
| 73 | */ |
||
| 74 | void GLAPIENTRY |
||
| 75 | _mesa_LineStipple( GLint factor, GLushort pattern ) |
||
| 76 | { |
||
| 77 | GET_CURRENT_CONTEXT(ctx); |
||
| 78 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
||
| 79 | |||
| 80 | factor = CLAMP( factor, 1, 256 ); |
||
| 81 | |||
| 82 | if (ctx->Line.StippleFactor == factor && |
||
| 83 | ctx->Line.StipplePattern == pattern) |
||
| 84 | return; |
||
| 85 | |||
| 86 | FLUSH_VERTICES(ctx, _NEW_LINE); |
||
| 87 | ctx->Line.StippleFactor = factor; |
||
| 88 | ctx->Line.StipplePattern = pattern; |
||
| 89 | |||
| 90 | if (ctx->Driver.LineStipple) |
||
| 91 | ctx->Driver.LineStipple( ctx, factor, pattern ); |
||
| 92 | } |
||
| 93 | |||
| 94 | |||
| 95 | /** |
||
| 96 | * Initialize the context line state. |
||
| 97 | * |
||
| 98 | * \param ctx GL context. |
||
| 99 | * |
||
| 100 | * Initializes __struct gl_contextRec::Line and line related constants in |
||
| 101 | * __struct gl_contextRec::Const. |
||
| 102 | */ |
||
| 103 | void GLAPIENTRY |
||
| 104 | _mesa_init_line( struct gl_context * ctx ) |
||
| 105 | { |
||
| 106 | ctx->Line.SmoothFlag = GL_FALSE; |
||
| 107 | ctx->Line.StippleFlag = GL_FALSE; |
||
| 108 | ctx->Line.Width = 1.0; |
||
| 109 | ctx->Line.StipplePattern = 0xffff; |
||
| 110 | ctx->Line.StippleFactor = 1; |
||
| 111 | } |