A new module to provide RasterSetup and advanced triangle/line/point

functionality layered on top of the software rasterizer.

An example entrypoint:
	void _swsetup_Triangle( GLcontext, GLuint, GLuint, GLuint, GLuint )

will coerce the software rasterizer to draw flat, twoside-lit,
unfilled and offset triangles (including decomposition to points or lines).

src/mesa/swrast_setup/ss_vbtmp.h

@@ -0,0 +1,117 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ * 
+ * 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.
+ *
+ * Authors:
+ *    Keith Whitwell <keithw@valinux.com>
+ */
+
+
+static void TAG(rs)(struct vertex_buffer *VB, GLuint start, GLuint end)
+{
+   GLcontext *ctx = VB->ctx;
+   SWvertex *v;
+   GLfloat (*eye)[4];
+   GLfloat (*win)[4];
+   GLfloat (*tc[MAX_TEXTURE_UNITS])[4];
+   GLubyte (*color)[4];
+   GLubyte (*spec)[4];
+   GLuint *index;
+   GLfloat *fog;
+   GLuint sz[MAX_TEXTURE_UNITS];
+   GLuint szeye;
+   int i;
+
+   /* TODO: Do window map here.
+    */
+/*     GLfloat *m = VB->ctx->Viewport.WindowMap.m; */
+/*     const GLfloat sx = m[0]; */
+/*     const GLfloat sy = m[5]; */
+/*     const GLfloat sz = m[10] * ctx->Visual->DepthMaxF; */
+/*     const GLfloat tx = m[12]; */
+/*     const GLfloat ty = m[13]; */
+/*     const GLfloat tz = m[14] * ctx->Visual->DepthMaxF; */
+
+
+   /* TODO:  Get import_client_data to pad vectors out to 4 cleanly.
+    */
+   gl_import_client_data( VB, ctx->_RenderFlags,
+			  (VB->ClipOrMask
+			   ? /*  VEC_CLEAN| */VEC_WRITABLE|VEC_GOOD_STRIDE
+			   : /*  VEC_CLEAN| */VEC_GOOD_STRIDE));
+
+   if (IND & TEX0) {
+      tc[0] = VB->TexCoordPtr[0]->data;
+      sz[0] = VB->TexCoordPtr[0]->size;
+   }
+   
+   if (IND & MULTITEX) {
+      for (i = 0 ; i < MAX_TEXTURE_UNITS ; i++) {
+	 tc[i] = VB->TexCoordPtr[i]->data;
+	 sz[i] = VB->TexCoordPtr[i]->size;
+      }
+   }
+
+   fog = VB->FogCoordPtr->data;
+   eye = VB->EyePtr->data;
+   szeye = VB->EyePtr->size;
+   win = VB->Win.data;
+   color = VB->Color[0]->data;
+   spec = VB->SecondaryColor[0]->data;
+   index = VB->Index[0]->data;
+
+   v = &(SWSETUP_VB(VB)->verts[start]);
+
+   for (i=start; i < end; i++, v++) {
+      if (VB->ClipMask[i] == 0) {
+	 COPY_4FV( v->win, win[i] );
+	 
+	 if (IND & EYE) 
+	    COPY_4FV( v->eye, eye[i] );
+
+	 if (IND & TEX0) 
+	    COPY_CLEAN_4V( v->texcoord[0], sz[0], tc[0][i] );
+
+	 if (IND & MULTITEX) {
+	    GLuint u;
+	    for (u = 0 ; u < MAX_TEXTURE_UNITS ; u++)
+	       if (ctx->Texture.Unit[u]._ReallyEnabled)
+		  COPY_CLEAN_4V( v->texcoord[u], sz[u], tc[u][i] );
+	 }
+
+	 if (IND & COLOR)
+	    COPY_4UBV(v->color, color[i]);
+	 
+	 if (IND & SPEC) 
+	    COPY_4UBV(v->specular, spec[i]);
+
+	 if (IND & FOG)
+	    v->fog = fog[i]; 
+
+	 if (IND & INDEX)
+	    v->index = index[i]; 
+      }
+   }
+}
+
+#undef TAG
+#undef IND