Replaced Texture.CurrentD[] with separate Texture.Current1/2/3D vars.

Completely removed the dirty texture object list.  Set texObj->Complete
to GL_FALSE to indicate dirty.
Made point/line/triangle/quad SWvertex parameters const.
Minor code clean-ups.

5 files changed, 169 insertions, 165 deletions

diff --git a/src/mesa/drivers/glide/fxddtex.c b/src/mesa/drivers/glide/fxddtex.c
index 9f978b3f460..85d2271b72e 100644
--- a/src/mesa/drivers/glide/fxddtex.c
+++ b/src/mesa/drivers/glide/fxddtex.c
@@ -462,7 +462,7 @@ void fxDDTexUseGlbPalette(GLcontext *ctx, GLboolean state)
   else {
     fxMesa->haveGlobalPaletteTexture = 0;
 
-    if ((ctx->Texture.Unit[0]._Current == ctx->Texture.Unit[0].CurrentD[2]) &&
+    if ((ctx->Texture.Unit[0]._Current == ctx->Texture.Unit[0].Current2D) &&
         (ctx->Texture.Unit[0]._Current != NULL)) {
       struct gl_texture_object *tObj = ctx->Texture.Unit[0]._Current;
 
diff --git a/src/mesa/drivers/glide/fxsetup.c b/src/mesa/drivers/glide/fxsetup.c
index 2cc6add1d28..a5af36ca41d 100644
--- a/src/mesa/drivers/glide/fxsetup.c
+++ b/src/mesa/drivers/glide/fxsetup.c
@@ -456,7 +456,7 @@ static void fxSetupTextureSingleTMU_NoLock(GLcontext *ctx, GLuint textureset)
   GLuint unitsmode;
   GLint ifmt;
   tfxTexInfo *ti;
-  struct gl_texture_object *tObj=ctx->Texture.Unit[textureset].CurrentD[2];
+  struct gl_texture_object *tObj=ctx->Texture.Unit[textureset].Current2D;
   int tmu;
 
   if (MESA_VERBOSE&VERBOSE_DRIVER) {
@@ -747,8 +747,8 @@ static void fxSetupTextureDoubleTMU_NoLock(GLcontext *ctx)
   fxMesaContext fxMesa=(fxMesaContext)ctx->DriverCtx;
   GrCombineLocal_t localc,locala;
   tfxTexInfo *ti0,*ti1;
-  struct gl_texture_object *tObj0=ctx->Texture.Unit[0].CurrentD[2];
-  struct gl_texture_object *tObj1=ctx->Texture.Unit[1].CurrentD[2];
+  struct gl_texture_object *tObj0=ctx->Texture.Unit[0].Current2D;
+  struct gl_texture_object *tObj1=ctx->Texture.Unit[1].Current2D;
   GLuint envmode,ifmt,unitsmode;
   int tmu0=0, tmu1=1;
 
diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index 9f7280564cc..3f9a3626b12 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1,4 +1,4 @@
-/* $Id: osmesa.c,v 1.32 2000/11/17 21:01:40 brianp Exp $ */
+/* $Id: osmesa.c,v 1.33 2000/11/19 23:10:26 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1239,7 +1239,7 @@ static void read_index_pixels( const GLcontext *ctx,
  * Draw a flat-shaded, RGB line into an osmesa buffer.
  */
 static void flat_rgba_line( GLcontext *ctx,
-                            SWvertex *vert0, SWvertex *vert1 )
+                            const SWvertex *vert0, const SWvertex *vert1 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLubyte *color = vert0->color;
@@ -1261,7 +1261,7 @@ static void flat_rgba_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, RGB line into an osmesa buffer.
  */
 static void flat_rgba_z_line( GLcontext *ctx,
-			      SWvertex *vert0, SWvertex *vert1 )
+			      const SWvertex *vert0, const SWvertex *vert1 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLubyte *color = vert0->color;
@@ -1290,7 +1290,7 @@ static void flat_rgba_z_line( GLcontext *ctx,
  * Draw a flat-shaded, alpha-blended, RGB line into an osmesa buffer.
  */
 static void flat_blend_rgba_line( GLcontext *ctx,
-				  SWvertex *vert0, SWvertex *vert1 )
+				  const SWvertex *vert0, const SWvertex *vert1 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLint rshift = osmesa->rshift;
@@ -1325,7 +1325,7 @@ static void flat_blend_rgba_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
  */
 static void flat_blend_rgba_z_line( GLcontext *ctx,
-				    SWvertex *vert0, SWvertex *vert1 )
+				    const SWvertex *vert0, const SWvertex *vert1 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLint rshift = osmesa->rshift;
@@ -1363,7 +1363,7 @@ static void flat_blend_rgba_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, alpha-blended, RGB line into an osmesa buffer.
  */
 static void flat_blend_rgba_z_line_write( GLcontext *ctx,
-					  SWvertex *vert0, SWvertex *vert1 )
+					  const SWvertex *vert0, const SWvertex *vert1 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLint rshift = osmesa->rshift;
@@ -1509,7 +1509,9 @@ osmesa_choose_line_function( GLcontext *ctx )
  * Smooth-shaded, z-less triangle, RGBA color.
  */
 static void smooth_rgba_z_triangle( GLcontext *ctx, 
-				    SWvertex *v0, SWvertex *v1, SWvertex *v2 )
+				    const SWvertex *v0,
+                                    const SWvertex *v1,
+                                    const SWvertex *v2 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
    GLint rshift = osmesa->rshift;
@@ -1551,7 +1553,9 @@ static void smooth_rgba_z_triangle( GLcontext *ctx,
  * Flat-shaded, z-less triangle, RGBA color.
  */
 static void flat_rgba_z_triangle( GLcontext *ctx, 
-				  SWvertex *v0, SWvertex *v1, SWvertex *v2 )
+				  const SWvertex *v0,
+                                  const SWvertex *v1,
+                                  const SWvertex *v2 )
 {
    OSMesaContext osmesa = OSMESA_CONTEXT(ctx);
 #define INTERP_Z 1
diff --git a/src/mesa/drivers/x11/xm_line.c b/src/mesa/drivers/x11/xm_line.c
index 0513d045abc..328ba65cee0 100644
--- a/src/mesa/drivers/x11/xm_line.c
+++ b/src/mesa/drivers/x11/xm_line.c
@@ -1,4 +1,4 @@
-/* $Id: xm_line.c,v 1.10 2000/11/16 21:05:40 keithw Exp $ */
+/* $Id: xm_line.c,v 1.11 2000/11/19 23:10:26 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -54,7 +54,7 @@
 /*
  * Render an array of points into a pixmap, any pixel format.
  */
-static void draw_points_ANY_pixmap( GLcontext *ctx, SWvertex *vert )
+static void draw_points_ANY_pixmap( GLcontext *ctx, const SWvertex *vert )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaDisplay *dpy = xmesa->xm_visual->display;
@@ -117,7 +117,7 @@ void xmesa_choose_point( GLcontext *ctx )
  * Draw a flat-shaded, PF_TRUECOLOR line into an XImage.
  */
 static void flat_TRUECOLOR_line( GLcontext *ctx,
-                                 SWvertex *vert0, SWvertex *vert1 )
+                                 const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -138,7 +138,7 @@ static void flat_TRUECOLOR_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_8A8B8G8R line into an XImage.
  */
 static void flat_8A8B8G8R_line( GLcontext *ctx,
-                                SWvertex *vert0, SWvertex *vert1 )
+                                const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -158,7 +158,7 @@ static void flat_8A8B8G8R_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_8R8G8B line into an XImage.
  */
 static void flat_8R8G8B_line( GLcontext *ctx,
-                              SWvertex *vert0, SWvertex *vert1 )
+                              const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -178,7 +178,7 @@ static void flat_8R8G8B_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_8R8G8B24 line into an XImage.
  */
 static void flat_8R8G8B24_line( GLcontext *ctx,
-                              SWvertex *vert0, SWvertex *vert1 )
+                              const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -201,7 +201,7 @@ static void flat_8R8G8B24_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_5R6G5B line into an XImage.
  */
 static void flat_5R6G5B_line( GLcontext *ctx,
-                              SWvertex *vert0, SWvertex *vert1 )
+                              const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -221,7 +221,7 @@ static void flat_5R6G5B_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_DITHER_5R6G5B line into an XImage.
  */
 static void flat_DITHER_5R6G5B_line( GLcontext *ctx,
-                                     SWvertex *vert0, SWvertex *vert1 )
+                                     const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -241,7 +241,7 @@ static void flat_DITHER_5R6G5B_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_DITHER 8-bit line into an XImage.
  */
 static void flat_DITHER8_line( GLcontext *ctx,
-                               SWvertex *vert0, SWvertex *vert1 )
+                               const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -263,7 +263,7 @@ static void flat_DITHER8_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_LOOKUP 8-bit line into an XImage.
  */
 static void flat_LOOKUP8_line( GLcontext *ctx,
-                               SWvertex *vert0, SWvertex *vert1 )
+                               const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -285,7 +285,7 @@ static void flat_LOOKUP8_line( GLcontext *ctx,
  * Draw a flat-shaded, PF_HPCR line into an XImage.
  */
 static void flat_HPCR_line( GLcontext *ctx,
-                            SWvertex *vert0, SWvertex *vert1 )
+                            const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -307,7 +307,7 @@ static void flat_HPCR_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_TRUECOLOR line into an XImage.
  */
 static void flat_TRUECOLOR_z_line( GLcontext *ctx,
-                                   SWvertex *vert0, SWvertex *vert1 )
+                                   const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -333,7 +333,7 @@ static void flat_TRUECOLOR_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_8A8B8G8R line into an XImage.
  */
 static void flat_8A8B8G8R_z_line( GLcontext *ctx,
-                                  SWvertex *vert0, SWvertex *vert1 )
+                                  const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -359,7 +359,7 @@ static void flat_8A8B8G8R_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_8R8G8B line into an XImage.
  */
 static void flat_8R8G8B_z_line( GLcontext *ctx,
-                                SWvertex *vert0, SWvertex *vert1 )
+                                const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -385,7 +385,7 @@ static void flat_8R8G8B_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_8R8G8B24 line into an XImage.
  */
 static void flat_8R8G8B24_z_line( GLcontext *ctx,
-                                    SWvertex *vert0, SWvertex *vert1 )
+                                    const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -412,7 +412,7 @@ static void flat_8R8G8B24_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_5R6G5B line into an XImage.
  */
 static void flat_5R6G5B_z_line( GLcontext *ctx,
-                                SWvertex *vert0, SWvertex *vert1 )
+                                const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -437,7 +437,7 @@ static void flat_5R6G5B_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_DITHER_5R6G5B line into an XImage.
  */
 static void flat_DITHER_5R6G5B_z_line( GLcontext *ctx,
-                                       SWvertex *vert0, SWvertex *vert1 )
+                                       const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -461,7 +461,7 @@ static void flat_DITHER_5R6G5B_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_DITHER 8-bit line into an XImage.
  */
 static void flat_DITHER8_z_line( GLcontext *ctx,
-                                 SWvertex *vert0, SWvertex *vert1 )
+                                 const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -488,7 +488,7 @@ static void flat_DITHER8_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_LOOKUP 8-bit line into an XImage.
  */
 static void flat_LOOKUP8_z_line( GLcontext *ctx,
-                                 SWvertex *vert0, SWvertex *vert1 )
+                                 const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
@@ -516,7 +516,7 @@ static void flat_LOOKUP8_z_line( GLcontext *ctx,
  * Draw a flat-shaded, Z-less, PF_HPCR line into an XImage.
  */
 static void flat_HPCR_z_line( GLcontext *ctx,
-                              SWvertex *vert0, SWvertex *vert1 )
+                              const SWvertex *vert0, const SWvertex *vert1 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = vert0->color;
diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c
index 0badaede8c6..c2b15034ada 100644
--- a/src/mesa/drivers/x11/xm_tri.c
+++ b/src/mesa/drivers/x11/xm_tri.c
@@ -1,4 +1,4 @@
-/* $Id: xm_tri.c,v 1.10 2000/11/16 21:05:40 keithw Exp $ */
+/* $Id: xm_tri.c,v 1.11 2000/11/19 23:10:26 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -56,9 +56,9 @@
  * XImage, smooth, depth-buffered, PF_TRUECOLOR triangle.
  */
 static void smooth_TRUECOLOR_z_triangle( GLcontext *ctx,
-                                         SWvertex *v0,
-					 SWvertex *v1,
-					 SWvertex *v2 )
+                                         const SWvertex *v0,
+					 const SWvertex *v1,
+					 const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -91,9 +91,9 @@ static void smooth_TRUECOLOR_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_8A8B8G8R triangle.
  */
 static void smooth_8A8B8G8R_z_triangle( GLcontext *ctx,
-					SWvertex *v0,
-					SWvertex *v1,
-					SWvertex *v2 )
+					const SWvertex *v0,
+					const SWvertex *v1,
+					const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -125,9 +125,9 @@ static void smooth_8A8B8G8R_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_8R8G8B triangle.
  */
 static void smooth_8R8G8B_z_triangle( GLcontext *ctx,
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -159,9 +159,9 @@ static void smooth_8R8G8B_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_8R8G8B24 triangle.
  */
 static void smooth_8R8G8B24_z_triangle( GLcontext *ctx,
-                                        SWvertex *v0,
-					SWvertex *v1,
-					SWvertex *v2 )
+                                        const SWvertex *v0,
+					const SWvertex *v1,
+					const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -195,9 +195,9 @@ static void smooth_8R8G8B24_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_TRUEDITHER triangle.
  */
 static void smooth_TRUEDITHER_z_triangle( GLcontext *ctx,
-					  SWvertex *v0,
-					  SWvertex *v1,
-					  SWvertex *v2 )
+					  const SWvertex *v0,
+					  const SWvertex *v1,
+					  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -229,9 +229,9 @@ static void smooth_TRUEDITHER_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_5R6G5B triangle.
  */
 static void smooth_5R6G5B_z_triangle( GLcontext *ctx,
-                                      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+                                      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -263,9 +263,9 @@ static void smooth_5R6G5B_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_DITHER_5R6G5B triangle.
  */
 static void smooth_DITHER_5R6G5B_z_triangle( GLcontext *ctx,
-                                             SWvertex *v0,
-					     SWvertex *v1,
-					     SWvertex *v2 )
+                                             const SWvertex *v0,
+					     const SWvertex *v1,
+					     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -297,9 +297,9 @@ static void smooth_DITHER_5R6G5B_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, 8-bit, PF_DITHER8 triangle.
  */
 static void smooth_DITHER8_z_triangle( GLcontext *ctx,
-                                       SWvertex *v0,
-				       SWvertex *v1,
-				       SWvertex *v2 )
+                                       const SWvertex *v0,
+				       const SWvertex *v1,
+				       const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -332,9 +332,9 @@ static void smooth_DITHER8_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, PF_DITHER triangle.
  */
 static void smooth_DITHER_z_triangle( GLcontext *ctx,
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -369,9 +369,9 @@ static void smooth_DITHER_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, 8-bit PF_LOOKUP triangle.
  */
 static void smooth_LOOKUP8_z_triangle( GLcontext *ctx, 
-				       SWvertex *v0,
-				       SWvertex *v1,
-				       SWvertex *v2 )
+				       const SWvertex *v0,
+				       const SWvertex *v1,
+				       const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -405,9 +405,9 @@ static void smooth_LOOKUP8_z_triangle( GLcontext *ctx,
  * XImage, smooth, depth-buffered, 8-bit PF_HPCR triangle.
  */
 static void smooth_HPCR_z_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -439,9 +439,9 @@ static void smooth_HPCR_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_TRUECOLOR triangle.
  */
 static void flat_TRUECOLOR_z_triangle( GLcontext *ctx,
-                        	       SWvertex *v0,
-				       SWvertex *v1,
-				       SWvertex *v2 )
+                        	       const SWvertex *v0,
+				       const SWvertex *v1,
+				       const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -472,9 +472,9 @@ static void flat_TRUECOLOR_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_8A8B8G8R triangle.
  */
 static void flat_8A8B8G8R_z_triangle( GLcontext *ctx, 
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -506,9 +506,9 @@ static void flat_8A8B8G8R_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_8R8G8B triangle.
  */
 static void flat_8R8G8B_z_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -540,9 +540,9 @@ static void flat_8R8G8B_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_8R8G8B24 triangle.
  */
 static void flat_8R8G8B24_z_triangle( GLcontext *ctx, 
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = v0->color;
@@ -575,9 +575,9 @@ static void flat_8R8G8B24_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_TRUEDITHER triangle.
  */
 static void flat_TRUEDITHER_z_triangle( GLcontext *ctx, 
-					SWvertex *v0,
-					SWvertex *v1,
-					SWvertex *v2 )
+					const SWvertex *v0,
+					const SWvertex *v1,
+					const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -607,9 +607,9 @@ static void flat_TRUEDITHER_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_5R6G5B triangle.
  */
 static void flat_5R6G5B_z_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -641,9 +641,9 @@ static void flat_5R6G5B_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_DITHER_5R6G5B triangle.
  */
 static void flat_DITHER_5R6G5B_z_triangle( GLcontext *ctx, 
-					   SWvertex *v0,
-					   SWvertex *v1,
-					   SWvertex *v2 )
+					   const SWvertex *v0,
+					   const SWvertex *v1,
+					   const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = v0->color;
@@ -674,9 +674,9 @@ static void flat_DITHER_5R6G5B_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, 8-bit PF_DITHER triangle.
  */
 static void flat_DITHER8_z_triangle( GLcontext *ctx, 
-				     SWvertex *v0,
-				     SWvertex *v1,
-				     SWvertex *v2 )
+				     const SWvertex *v0,
+				     const SWvertex *v1,
+				     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -709,9 +709,9 @@ static void flat_DITHER8_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, PF_DITHER triangle.
  */
 static void flat_DITHER_z_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -743,9 +743,9 @@ static void flat_DITHER_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, 8-bit PF_HPCR triangle.
  */
 static void flat_HPCR_z_triangle( GLcontext *ctx, 
-				  SWvertex *v0,
-				  SWvertex *v1,
-				  SWvertex *v2 )
+				  const SWvertex *v0,
+				  const SWvertex *v1,
+				  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -778,9 +778,9 @@ static void flat_HPCR_z_triangle( GLcontext *ctx,
  * XImage, flat, depth-buffered, 8-bit PF_LOOKUP triangle.
  */
 static void flat_LOOKUP8_z_triangle( GLcontext *ctx, 
-				     SWvertex *v0,
-				     SWvertex *v1,
-				     SWvertex *v2 )
+				     const SWvertex *v0,
+				     const SWvertex *v1,
+				     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_Z 1
@@ -816,9 +816,9 @@ static void flat_LOOKUP8_z_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_TRUECOLOR triangle.
  */
 static void smooth_TRUECOLOR_triangle( GLcontext *ctx, 
-				       SWvertex *v0,
-				       SWvertex *v1,
-				       SWvertex *v2 )
+				       const SWvertex *v0,
+				       const SWvertex *v1,
+				       const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -841,9 +841,9 @@ static void smooth_TRUECOLOR_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_8A8B8G8R triangle.
  */
 static void smooth_8A8B8G8R_triangle( GLcontext *ctx, 
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -868,9 +868,9 @@ static void smooth_8A8B8G8R_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle.
  */
 static void smooth_8R8G8B_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -895,9 +895,9 @@ static void smooth_8R8G8B_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle.
  */
 static void smooth_8R8G8B24_triangle( GLcontext *ctx, 
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -924,9 +924,9 @@ static void smooth_8R8G8B24_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_TRUEDITHER triangle.
  */
 static void smooth_TRUEDITHER_triangle( GLcontext *ctx, 
-					SWvertex *v0,
-					SWvertex *v1,
-					SWvertex *v2 )
+					const SWvertex *v0,
+					const SWvertex *v1,
+					const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -950,9 +950,9 @@ static void smooth_TRUEDITHER_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_5R6G5B triangle.
  */
 static void smooth_5R6G5B_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -977,9 +977,9 @@ static void smooth_5R6G5B_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_DITHER_5R6G5B triangle.
  */
 static void smooth_DITHER_5R6G5B_triangle( GLcontext *ctx, 
-					   SWvertex *v0,
-					   SWvertex *v1,
-					   SWvertex *v2 )
+					   const SWvertex *v0,
+					   const SWvertex *v1,
+					   const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -1004,9 +1004,9 @@ static void smooth_DITHER_5R6G5B_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, 8-bit PF_DITHER triangle.
  */
 static void smooth_DITHER8_triangle( GLcontext *ctx, 
-				     SWvertex *v0,
-				     SWvertex *v1,
-				     SWvertex *v2 )
+				     const SWvertex *v0,
+				     const SWvertex *v1,
+				     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define INTERP_RGB 1
@@ -1032,9 +1032,9 @@ static void smooth_DITHER8_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, PF_DITHER triangle.
  */
 static void smooth_DITHER_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -1059,9 +1059,9 @@ static void smooth_DITHER_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, 8-bit PF_LOOKUP triangle.
  */
 static void smooth_LOOKUP8_triangle( GLcontext *ctx, 
-				     SWvertex *v0,
-				     SWvertex *v1,
-				     SWvertex *v2 )
+				     const SWvertex *v0,
+				     const SWvertex *v1,
+				     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 
@@ -1089,9 +1089,9 @@ static void smooth_LOOKUP8_triangle( GLcontext *ctx,
  * XImage, smooth, NON-depth-buffered, 8-bit PF_HPCR triangle.
  */
 static void smooth_HPCR_triangle( GLcontext *ctx, 
-				  SWvertex *v0,
-				  SWvertex *v1,
-				  SWvertex *v2 )
+				  const SWvertex *v0,
+				  const SWvertex *v1,
+				  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 
@@ -1117,9 +1117,9 @@ static void smooth_HPCR_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_TRUECOLOR triangle.
  */
 static void flat_TRUECOLOR_triangle( GLcontext *ctx, 
-				     SWvertex *v0,
-				     SWvertex *v1,
-				     SWvertex *v2 )
+				     const SWvertex *v0,
+				     const SWvertex *v1,
+				     const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -1142,9 +1142,9 @@ static void flat_TRUECOLOR_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_8A8B8G8R triangle.
  */
 static void flat_8A8B8G8R_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y)
@@ -1169,9 +1169,9 @@ static void flat_8A8B8G8R_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_8R8G8B triangle.
  */
 static void flat_8R8G8B_triangle( GLcontext *ctx, 
-				  SWvertex *v0,
-				  SWvertex *v1,
-				  SWvertex *v2 )
+				  const SWvertex *v0,
+				  const SWvertex *v1,
+				  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y)
@@ -1196,9 +1196,9 @@ static void flat_8R8G8B_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_8R8G8B24 triangle.
  */
 static void flat_8R8G8B24_triangle( GLcontext *ctx, 
-				    SWvertex *v0,
-				    SWvertex *v1,
-				    SWvertex *v2 )
+				    const SWvertex *v0,
+				    const SWvertex *v1,
+				    const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = v0->color;
@@ -1223,9 +1223,9 @@ static void flat_8R8G8B24_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_TRUEDITHER triangle.
  */
 static void flat_TRUEDITHER_triangle( GLcontext *ctx, 
-				      SWvertex *v0,
-				      SWvertex *v1,
-				      SWvertex *v2 )
+				      const SWvertex *v0,
+				      const SWvertex *v1,
+				      const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -1248,9 +1248,9 @@ static void flat_TRUEDITHER_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_5R6G5B triangle.
  */
 static void flat_5R6G5B_triangle( GLcontext *ctx, 
-				  SWvertex *v0,
-				  SWvertex *v1,
-				  SWvertex *v2 )
+				  const SWvertex *v0,
+				  const SWvertex *v1,
+				  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y)
@@ -1275,9 +1275,9 @@ static void flat_5R6G5B_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_DITHER_5R6G5B triangle.
  */
 static void flat_DITHER_5R6G5B_triangle( GLcontext *ctx, 
-					 SWvertex *v0,
-					 SWvertex *v1,
-					 SWvertex *v2 )
+					 const SWvertex *v0,
+					 const SWvertex *v1,
+					 const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    const GLubyte *color = v0->color;
@@ -1301,9 +1301,9 @@ static void flat_DITHER_5R6G5B_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, 8-bit PF_DITHER triangle.
  */
 static void flat_DITHER8_triangle( GLcontext *ctx, 
-				   SWvertex *v0,
-				   SWvertex *v1,
-				   SWvertex *v2 )
+				   const SWvertex *v0,
+				   const SWvertex *v1,
+				   const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y)
@@ -1329,9 +1329,9 @@ static void flat_DITHER8_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, PF_DITHER triangle.
  */
 static void flat_DITHER_triangle( GLcontext *ctx, 
-				  SWvertex *v0,
-				  SWvertex *v1,
-				  SWvertex *v2 )
+				  const SWvertex *v0,
+				  const SWvertex *v1,
+				  const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
    XMesaImage *img = xmesa->xm_buffer->backimage;
@@ -1355,9 +1355,9 @@ static void flat_DITHER_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, 8-bit PF_HPCR triangle.
  */
 static void flat_HPCR_triangle( GLcontext *ctx, 
-				SWvertex *v0,
-				SWvertex *v1,
-				SWvertex *v2 )
+				const SWvertex *v0,
+				const SWvertex *v1,
+				const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y)
@@ -1383,9 +1383,9 @@ static void flat_HPCR_triangle( GLcontext *ctx,
  * XImage, flat, NON-depth-buffered, 8-bit PF_LOOKUP triangle.
  */
 static void flat_LOOKUP8_triangle( GLcontext *ctx, 
-				   SWvertex *v0,
-				   SWvertex *v1,
-				   SWvertex *v2 )
+				   const SWvertex *v0,
+				   const SWvertex *v1,
+				   const SWvertex *v2 )
 {
    XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y)