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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
commita0c4815433ccd57322f4f7703ca35e9ccfa59250 (patch)
treef5213802ec12adb86ec3136001c1c29fe5343700 /mesalib/src/mesa/main/lines.c
parentc73dc01b6de45612b24dc2dd34fba24d81ebf46c (diff)
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Added MesaLib-7.6
Diffstat (limited to 'mesalib/src/mesa/main/lines.c')
-rw-r--r--mesalib/src/mesa/main/lines.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/lines.c b/mesalib/src/mesa/main/lines.c
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+++ b/mesalib/src/mesa/main/lines.c
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+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.3
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "context.h"
+#include "depth.h"
+#include "lines.h"
+#include "macros.h"
+#include "texstate.h"
+#include "mtypes.h"
+
+
+/**
+ * Set the line width.
+ *
+ * \param width line width in pixels.
+ *
+ * \sa glLineWidth().
+ */
+void GLAPIENTRY
+_mesa_LineWidth( GLfloat width )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (width<=0.0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
+ return;
+ }
+
+ if (ctx->Line.Width == width)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_LINE);
+ ctx->Line.Width = width;
+
+ if (width != 1.0F)
+ ctx->_TriangleCaps |= DD_LINE_WIDTH;
+ else
+ ctx->_TriangleCaps &= ~DD_LINE_WIDTH;
+
+ if (ctx->Driver.LineWidth)
+ ctx->Driver.LineWidth(ctx, width);
+}
+
+
+/**
+ * Set the line stipple pattern.
+ *
+ * \param factor pattern scale factor.
+ * \param pattern bit pattern.
+ *
+ * \sa glLineStipple().
+ *
+ * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On
+ * change flushes the vertices and notifies the driver via
+ * the dd_function_table::LineStipple callback.
+ */
+void GLAPIENTRY
+_mesa_LineStipple( GLint factor, GLushort pattern )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ factor = CLAMP( factor, 1, 256 );
+
+ if (ctx->Line.StippleFactor == factor &&
+ ctx->Line.StipplePattern == pattern)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_LINE);
+ ctx->Line.StippleFactor = factor;
+ ctx->Line.StipplePattern = pattern;
+
+ if (ctx->Driver.LineStipple)
+ ctx->Driver.LineStipple( ctx, factor, pattern );
+}
+
+
+/**
+ * Initialize the context line state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __GLcontextRec::Line and line related constants in
+ * __GLcontextRec::Const.
+ */
+void GLAPIENTRY
+_mesa_init_line( GLcontext * ctx )
+{
+ ctx->Line.SmoothFlag = GL_FALSE;
+ ctx->Line.StippleFlag = GL_FALSE;
+ ctx->Line.Width = 1.0;
+ ctx->Line.StipplePattern = 0xffff;
+ ctx->Line.StippleFactor = 1;
+}