Set _NEW_BUFFERS in _mesa_resize_framebuffer(). This makes sure the swrast

[mesa.git] / src / mesa / main / lines.c

diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index 8a9256c1789bc973dae77b630d5473b183a82cb3..c30d9ac109ea6043557ab22dba0eac39c12811fc 100644 (file)
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,10 +1,13 @@
-/* $Id: lines.c,v 1.26 2001/01/13 05:48:25 keithw Exp $ */
+/**
+ * \file lines.c
+ * Line operations.
+ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.5
+ * Version:  5.1
  *
- * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2003  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"),
@@ -25,44 +28,50 @@
  */
 
 
-#ifdef PC_HEADER
-#include "all.h"
-#else
 #include "glheader.h"
 #include "context.h"
 #include "depth.h"
-#include "feedback.h"
 #include "lines.h"
 #include "macros.h"
-#include "mmath.h"
 #include "texstate.h"
 #include "mtypes.h"
-#endif
-
 
 
-void
+/**
+ * Set the line width.
+ *
+ * \param width line width in pixels.
+ *
+ * \sa glLineWidth().
+ *
+ * Verifies the parameter and updates gl_line_attrib::Width. On a change,
+ * flushes the vertices, updates the clamped line width and marks the
+ * DD_LINE_WIDTH flag in __GLcontextRec::_TriangleCaps for the drivers if the
+ * width is different from one. Notifies the driver via the
+ * dd_function_table::LineWidth callback.
+ */
+void GLAPIENTRY
 _mesa_LineWidth( GLfloat width )
 {
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (width<=0.0) {
-      gl_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
+      _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
       return;
    }
 
-   if (ctx->Line.Width == width) 
+   if (ctx->Line.Width == width)
       return;
 
    FLUSH_VERTICES(ctx, _NEW_LINE);
    ctx->Line.Width = width;
-   ctx->Line._Width = CLAMP(width, 
+   ctx->Line._Width = CLAMP(width,
                            ctx->Const.MinLineWidth,
                            ctx->Const.MaxLineWidth);
 
 
-   if (width != 1.0) 
+   if (width != 1.0)
       ctx->_TriangleCaps |= DD_LINE_WIDTH;
    else
       ctx->_TriangleCaps &= ~DD_LINE_WIDTH;
@@ -72,8 +81,19 @@ _mesa_LineWidth( GLfloat width )
 }
 
 
-
-void
+/**
+ * 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);
@@ -94,3 +114,21 @@ _mesa_LineStipple( GLint factor, GLushort 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 )
+{
+   /* Line group */
+   ctx->Line.SmoothFlag = GL_FALSE;
+   ctx->Line.StippleFlag = GL_FALSE;
+   ctx->Line.Width = 1.0;
+   ctx->Line._Width = 1.0;
+   ctx->Line.StipplePattern = 0xffff;
+   ctx->Line.StippleFactor = 1;
+}