patch to import Jon Smirl's work from Bitkeeper

1 files changed, 157 insertions, 0 deletions

diff --git a/src/mesa/tnl_dd/t_dd_triemit.h b/src/mesa/tnl_dd/t_dd_triemit.h
new file mode 100644
index 0000000000..2f5bcee7ec
--- /dev/null
+++ b/src/mesa/tnl_dd/t_dd_triemit.h
@@ -0,0 +1,157 @@
+#ifndef DO_DEBUG_VERTS
+#define DO_DEBUG_VERTS 0
+#endif 
+
+#ifndef PRINT_VERTEX
+#define PRINT_VERTEX(x) 
+#endif
+
+#if defined(USE_X86_ASM)
+#define COPY_DWORDS( j, vb, vertsize, v )				\
+do {									\
+	int __tmp;							\
+	__asm__ __volatile__( "rep ; movsl"				\
+			      : "=%c" (j), "=D" (vb), "=S" (__tmp)	\
+			      : "0" (vertsize),				\
+			        "D" ((long)vb),				\
+			        "S" ((long)v) );			\
+} while (0)
+#else
+#define COPY_DWORDS( j, vb, vertsize, v )				\
+do {									\
+   for ( j = 0 ; j < vertsize ; j++ )					\
+      vb[j] = ((GLuint *)v)[j];						\
+   vb += vertsize;							\
+} while (0)
+#endif
+
+
+
+#if HAVE_QUADS
+static __inline void TAG(quad)( CTX_ARG,
+				VERTEX *v0,
+				VERTEX *v1,
+				VERTEX *v2,
+				VERTEX *v3 )
+{
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS( 4, vertsize);
+   GLuint j;
+
+   if (DO_DEBUG_VERTS) {
+      fprintf(stderr, "%s\n", __FUNCTION__);
+      PRINT_VERTEX(v0);
+      PRINT_VERTEX(v1);
+      PRINT_VERTEX(v2);
+      PRINT_VERTEX(v3);
+   }
+      
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v2 );
+   COPY_DWORDS( j, vb, vertsize, v3 );
+}
+#else
+static __inline void TAG(quad)( CTX_ARG,
+				VERTEX *v0,
+				VERTEX *v1,
+				VERTEX *v2,
+				VERTEX *v3 )
+{
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS(  6, vertsize);
+   GLuint j;
+
+   if (DO_DEBUG_VERTS) {
+      fprintf(stderr, "%s\n", __FUNCTION__);
+      PRINT_VERTEX(v0);
+      PRINT_VERTEX(v1);
+      PRINT_VERTEX(v2);
+      PRINT_VERTEX(v3);
+   }
+ 
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v3 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v2 );
+   COPY_DWORDS( j, vb, vertsize, v3 );
+}
+#endif
+
+
+static __inline void TAG(triangle)( CTX_ARG,
+				    VERTEX *v0,
+				    VERTEX *v1,
+				    VERTEX *v2 )
+{
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS( 3, vertsize);
+   GLuint j;
+
+   if (DO_DEBUG_VERTS) {
+      fprintf(stderr, "%s\n", __FUNCTION__);
+      PRINT_VERTEX(v0);
+      PRINT_VERTEX(v1);
+      PRINT_VERTEX(v2);
+   }
+
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+   COPY_DWORDS( j, vb, vertsize, v2 );
+}
+
+
+#if HAVE_LINES
+static __inline void TAG(line)( CTX_ARG,
+				VERTEX *v0,
+				VERTEX *v1 )
+{
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS( 2, vertsize);
+   GLuint j;
+
+   COPY_DWORDS( j, vb, vertsize, v0 );
+   COPY_DWORDS( j, vb, vertsize, v1 );
+}
+#endif
+
+#if HAVE_POINTS
+static __inline void TAG(point)( CTX_ARG,
+				 VERTEX *v0 )
+{
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS( 1, vertsize);
+   int j;
+
+   COPY_DWORDS( j, vb, vertsize, v0 );
+}
+#endif
+
+
+static void TAG(fast_clipped_poly)( GLcontext *ctx, const GLuint *elts,
+				    GLuint n )
+{
+   LOCAL_VARS
+   GLuint vertsize = GET_VERTEX_DWORDS();
+   GLuint *vb = (GLuint *)ALLOC_VERTS( (n-2) * 3, vertsize );
+   const GLuint *start = (const GLuint *)VERT(elts[0]);
+   int i,j;
+
+   if (DO_DEBUG_VERTS) {
+      fprintf(stderr, "%s\n", __FUNCTION__);
+      PRINT_VERTEX(VERT(elts[0]));
+      PRINT_VERTEX(VERT(elts[1]));
+   }
+
+   for (i = 2 ; i < n ; i++) {
+      if (DO_DEBUG_VERTS) {
+	 PRINT_VERTEX(VERT(elts[i]));
+      }
+
+      COPY_DWORDS( j, vb, vertsize, VERT(elts[i-1]) );
+      COPY_DWORDS( j, vb, vertsize, VERT(elts[i]) );
+      COPY_DWORDS( j, vb, vertsize, start );
+   }
+}
+