From 23caf20169ac38436ee9c13914f1d6aa7cf6bb5e Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Thu, 16 Nov 2000 21:05:34 +0000
Subject: Move the transform and lighting code to two new directories 	math: 
 Provides basic matrix and vector functionality that                might be
 useful to multiple software t&l 	       implementations, and is used by
 core mesa to 	       manage the Model, Project, etc matrices.

	tnl:   The real transform & lighting code from core mesa,
	       including everything from glVertex3f through vertex
	       buffer handling, transformation, clipping, lighting
	       and handoff to a driver for rasterization.

The interfaces of these can be further tightened up, but the basic
splitting up of state and code move is done.
---
 src/mesa/math/m_dotprod_tmp.h | 128 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 src/mesa/math/m_dotprod_tmp.h

(limited to 'src/mesa/math/m_dotprod_tmp.h')

diff --git a/src/mesa/math/m_dotprod_tmp.h b/src/mesa/math/m_dotprod_tmp.h
new file mode 100644
index 0000000000..637e35fd58
--- /dev/null
+++ b/src/mesa/math/m_dotprod_tmp.h
@@ -0,0 +1,128 @@
+/* $Id: m_dotprod_tmp.h,v 1.1 2000/11/16 21:05:41 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.1
+ * 
+ * Copyright (C) 1999  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.
+ */
+
+/*
+ * New (3.1) transformation code written by Keith Whitwell.
+ */
+
+
+/* Note - respects the stride of the output vector.
+ */
+static void TAG(dotprod_vec2)( GLvector4f *out_vec, 
+			     GLuint elt,
+			     const GLvector4f *coord_vec, 
+			     const GLfloat plane[4], 
+			     const GLubyte mask[])
+{
+   GLuint stride = coord_vec->stride;
+   GLfloat *coord = coord_vec->start;
+   GLuint count = coord_vec->count;
+
+   GLuint outstride = out_vec->stride;
+   GLfloat *out = out_vec->start + elt;
+   GLuint i;
+   
+   const GLfloat plane0 = plane[0], plane1 = plane[1], plane3 = plane[3];
+      
+   (void) mask;
+
+   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+      CULL_CHECK {
+	 *out = (coord[0] * plane0 +
+		 coord[1] * plane1 +
+		            plane3);
+      }
+   }   
+   out_vec->count = coord_vec->count;
+}
+
+static void TAG(dotprod_vec3)( GLvector4f *out_vec, 
+			     GLuint elt,
+			     const GLvector4f *coord_vec, 
+			     const GLfloat plane[4], 
+			     const GLubyte mask[])
+{
+   GLuint stride = coord_vec->stride;
+   GLfloat *coord = coord_vec->start;
+   GLuint count = coord_vec->count;
+
+   GLuint outstride = out_vec->stride;
+   GLfloat *out = out_vec->start + elt;
+   GLuint i;
+
+   const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+   const GLfloat plane3 = plane[3];
+
+   (void) mask;
+
+   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+      CULL_CHECK {
+	 *out = (coord[0] * plane0 +
+		 coord[1] * plane1 +
+		 coord[2] * plane2 +
+		            plane3);
+      }
+   }   
+   out_vec->count = coord_vec->count;
+}
+
+static void TAG(dotprod_vec4)( GLvector4f *out_vec, 
+			     GLuint elt,
+			     const GLvector4f *coord_vec, 
+			     const GLfloat plane[4], 
+			     const GLubyte mask[])
+{
+   GLuint stride = coord_vec->stride;
+   GLfloat *coord = coord_vec->start;
+   GLuint count = coord_vec->count;
+
+   GLuint outstride = out_vec->stride;
+   GLfloat *out = out_vec->start + elt;
+   GLuint i;
+
+   const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+   const GLfloat plane3 = plane[3];
+
+   (void) mask;
+
+   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+      CULL_CHECK {
+	 *out = (coord[0] * plane0 +
+		 coord[1] * plane1 +
+		 coord[2] * plane2 +
+		 coord[3] * plane3);
+      }
+   }   
+   out_vec->count = coord_vec->count;
+}
+
+
+static void TAG(init_dotprod)( void )
+{
+   gl_dotprod_tab[IDX&1][2] = TAG(dotprod_vec2);
+   gl_dotprod_tab[IDX&1][3] = TAG(dotprod_vec3);
+   gl_dotprod_tab[IDX&1][4] = TAG(dotprod_vec4);
+}
-- 
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