1 files changed, 99 insertions, 0 deletions
diff --git a/src/mesa/drivers/common/t_dd_vb.c b/src/mesa/drivers/common/t_dd_vb.c
new file mode 100644
index 0000000000..9c23900c55
--- /dev/null
+++ b/src/mesa/drivers/common/t_dd_vb.c
@@ -0,0 +1,99 @@
+/* Build an SWvertex from an tdfxVertex.  This is workable because in
+ * states where the GrVertex is insufficent (eg seperate-specular),
+ * the driver initiates a total fallback, and builds SWvertices
+ * directly -- it recognizes that it will never have use for the
+ * tdfxVertex. 
+ *
+ * This code is hit only when a mix of accelerated and unaccelerated
+ * primitives are being drawn, and only for the unaccelerated
+ * primitives. 
+ */
+static void 
+tdfx_translate_vertex(GLcontext *ctx, const tdfxVertex *src, SWvertex *dst)
+{
+   tdfxContextPtr imesa = TDFX_CONTEXT( ctx );
+   
+   if (imesa->vertsize == 4) {
+      dst->win[0] =   src->tv.x + .5;
+      dst->win[1] = - src->tv.y + imesa->driDrawable->h - .5;
+      dst->win[2] =   src->tv.z * (GLfloat)0x10000;
+      dst->win[3] =   1.0;
+      
+      dst->color[0] = src->tv.color.red;
+      dst->color[1] = src->tv.color.green;
+      dst->color[2] = src->tv.color.blue;
+      dst->color[3] = src->tv.color.alpha;
+   } 
+   else {
+      dst->win[0] =   src->v.x + .5;
+      dst->win[1] = - src->v.y + imesa->driDrawable->h - .5;
+      dst->win[2] =   src->v.z * (GLfloat)0x10000;
+      dst->win[3] =   src->v.oow;
+
+      dst->color[0] = src->v.color.red;
+      dst->color[1] = src->v.color.green;
+      dst->color[2] = src->v.color.blue;
+      dst->color[3] = src->v.color.alpha;
+      
+      if (fxMesa->xxx) {
+	 dst->texcoord[0][0] = src->v.tu0;
+	 dst->texcoord[0][1] = src->v.tv0;
+	 dst->texcoord[0][3] = 1.0;
+	 
+	 dst->texcoord[1][0] = src->v.tu1;
+	 dst->texcoord[1][1] = src->v.tv1;
+	 dst->texcoord[1][3] = 1.0;
+      } 
+      else {
+	 dst->texcoord[0][0] = src->pv.u0;
+	 dst->texcoord[0][1] = src->pv.v0;
+	 dst->texcoord[0][3] = src->pv.q0;
+	 
+	 dst->texcoord[1][0] = src->pv.u1;
+	 dst->texcoord[1][1] = src->pv.v1;
+	 dst->texcoord[1][3] = src->pv.q1;
+      }
+   }
+
+   dst->pointSize = ctx->Point._Size;
+}
+
+
+static void 
+tdfx_fallback_tri( tdfxContextPtr imesa, 
+		   tdfxVertex *v0, 
+		   tdfxVertex *v1, 
+		   tdfxVertex *v2 )
+{
+   GLcontext *ctx = imesa->glCtx;
+   SWvertex v[3];
+   tdfx_translate_vertex( ctx, v0, &v[0] );
+   tdfx_translate_vertex( ctx, v1, &v[1] );
+   tdfx_translate_vertex( ctx, v2, &v[2] );
+   _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+
+static void 
+tdfx_fallback_line( tdfxContextPtr imesa,
+		    tdfxVertex *v0,
+		    tdfxVertex *v1 )
+{
+   GLcontext *ctx = imesa->glCtx;
+   SWvertex v[2];
+   tdfx_translate_vertex( ctx, v0, &v[0] );
+   tdfx_translate_vertex( ctx, v1, &v[1] );
+   _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void 
+tdfx_fallback_point( tdfxContextPtr imesa, 
+		     tdfxVertex *v0 )
+{
+   GLcontext *ctx = imesa->glCtx;
+   SWvertex v[1];
+   tdfx_translate_vertex( ctx, v0, &v[0] );
+   _swrast_Point( ctx, &v[0] );
+}
+