mesa: reimplement IROUND(), add F_TO_I()

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

diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index 520010c1a18ec6c5e947e794c1f65df5dd2228d0..79bf5679d8a04515f8a21f2fd9d171ec91424c72 100644 (file)
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,10 +1,8 @@
-/* $Id: lines.c,v 1.27 2001/01/14 06:14:21 keithw Exp $ */
-
 /*
  * Mesa 3-D graphics library
- * Version:  3.5
+ * Version:  6.5.3
  *
- * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
+ * 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"),
@@ -25,59 +23,66 @@
  */
 
 
-#ifdef PC_HEADER
-#include "all.h"
-#else
 #include "glheader.h"
 #include "context.h"
-#include "depth.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().
+ */
+void GLAPIENTRY
 _mesa_LineWidth( GLfloat width )
 {
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glLineWidth %f\n", width);
+
    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->Const.MinLineWidth,
-                           ctx->Const.MaxLineWidth);
-
-
-   if (width != 1.0) 
-      ctx->_TriangleCaps |= DD_LINE_WIDTH;
-   else
-      ctx->_TriangleCaps &= ~DD_LINE_WIDTH;
 
    if (ctx->Driver.LineWidth)
-      (*ctx->Driver.LineWidth)(ctx, width);
+      ctx->Driver.LineWidth(ctx, 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);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glLineStipple %d %u\n", factor, pattern);
+
    factor = CLAMP( factor, 1, 256 );
 
    if (ctx->Line.StippleFactor == factor &&
@@ -93,3 +98,20 @@ _mesa_LineStipple( GLint factor, GLushort pattern )
 }
 
 
+/**
+ * Initialize the context line state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __struct gl_contextRec::Line and line related constants in
+ * __struct gl_contextRec::Const.
+ */
+void GLAPIENTRY
+_mesa_init_line( struct gl_context * ctx )
+{
+   ctx->Line.SmoothFlag = GL_FALSE;
+   ctx->Line.StippleFlag = GL_FALSE;
+   ctx->Line.Width = 1.0;
+   ctx->Line.StipplePattern = 0xffff;
+   ctx->Line.StippleFactor = 1;
+}