mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.

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

diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index 122a27f480478d66354ce2ea2ce7357942860a93..a89047c13f500cc79584acbee152ccdf9f42d428 100644 (file)
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,13 +1,8 @@
-/**
- * \file lines.c
- * Line operations.
- */
-
 /*
  * Mesa 3-D graphics library
- * Version:  5.1
+ * Version:  6.5.3
  *
- * Copyright (C) 1999-2003  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"),
@@ -22,7 +17,7 @@
  * 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
+ * THE AUTHORS 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.
  */
@@ -30,10 +25,8 @@
 
 #include "glheader.h"
 #include "context.h"
-#include "depth.h"
 #include "lines.h"
 #include "macros.h"
-#include "texstate.h"
 #include "mtypes.h"
 
 
@@ -43,41 +36,45 @@
  * \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 (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glLineWidth %f\n", width);
 
    if (width<=0.0) {
       _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
       return;
    }
 
+   /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says (in the list
+    * of deprecated functionality):
+    *
+    *     "Wide lines and line stipple - LineWidth is not deprecated, but
+    *     values greater than 1.0 will generate an INVALID_VALUE error;"
+    *
+    * This is one of the very few cases where functionality was deprecated but
+    * *NOT* removed in a later spec.  Therefore, we only disallow this in a
+    * forward compatible context.
+    */
+   if (ctx->API == API_OPENGL_CORE
+       && ((ctx->Const.ContextFlags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
+           != 0)) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glLineWidth" );
+      return;
+   }
+
    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);
 }
 
 
@@ -97,7 +94,9 @@ 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 );
 
@@ -119,16 +118,15 @@ _mesa_LineStipple( GLint factor, GLushort pattern )
  *
  * \param ctx GL context.
  *
- * Initializes __GLcontextRec::Line and line related constants in
- * __GLcontextRec::Const.
+ * Initializes __struct gl_contextRec::Line and line related constants in
+ * __struct gl_contextRec::Const.
  */
-void _mesa_init_line( GLcontext * ctx )
+void GLAPIENTRY
+_mesa_init_line( struct gl_context * 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;
 }