Apply antialiasing coverage factor to alpha after texture application,

not before.

9 files changed, 294 insertions, 223 deletions

diff --git a/src/mesa/swrast/s_aalinetemp.h b/src/mesa/swrast/s_aalinetemp.h
index 262af3ee3b3..996784dde4a 100644
--- a/src/mesa/swrast/s_aalinetemp.h
+++ b/src/mesa/swrast/s_aalinetemp.h
@@ -1,4 +1,4 @@
-/* $Id: s_aalinetemp.h,v 1.9 2001/05/10 17:41:41 brianp Exp $ */
+/* $Id: s_aalinetemp.h,v 1.10 2001/05/15 21:30:26 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -42,8 +42,11 @@ NAME(plot)(GLcontext *ctx, const struct LineInfo *line,
    const GLfloat coverage = compute_coveragef(line, ix, iy);
    GLdepth z;
    GLfloat fog;
+#ifdef DO_RGBA
    GLchan red, green, blue, alpha;
-   GLint frac, indx, index;
+#else
+   GLint index;
+#endif
    GLchan specRed, specGreen, specBlue;
    GLfloat tex[MAX_TEXTURE_UNITS][4], lambda[MAX_TEXTURE_UNITS];
 
@@ -68,20 +71,11 @@ NAME(plot)(GLcontext *ctx, const struct LineInfo *line,
    red   = solve_plane_chan(fx, fy, line->rPlane);
    green = solve_plane_chan(fx, fy, line->gPlane);
    blue  = solve_plane_chan(fx, fy, line->bPlane);
-   alpha = (GLchan) (solve_plane_chan(fx, fy, line->aPlane) * coverage);;
-#else
-   (void) red;
-   (void) green;
-   (void) blue;
-   (void) alpha;
+   alpha = solve_plane_chan(fx, fy, line->aPlane);
 #endif
 #ifdef DO_INDEX
-   frac = (GLint) (15.0 * coverage);
-   indx = (GLint) solve_plane(fx, fy, line->iPlane);
-   index = (indx & ~0xf) | frac;
+   index = (GLint) solve_plane(fx, fy, line->iPlane);
 #else
-   (void) frac;
-   (void) indx;
    (void) index;
 #endif
 #ifdef DO_SPEC
@@ -123,6 +117,8 @@ NAME(plot)(GLcontext *ctx, const struct LineInfo *line,
 #endif
 
 
+   PB_COVERAGE(pb, coverage);
+
 #if defined(DO_MULTITEX)
 #if defined(DO_SPEC)
    PB_WRITE_MULTITEX_SPEC_PIXEL(pb, ix, iy, z, fog, red, green, blue, alpha,
@@ -139,6 +135,7 @@ NAME(plot)(GLcontext *ctx, const struct LineInfo *line,
    PB_WRITE_CI_PIXEL(pb, ix, iy, z, fog, index);
 #endif
 
+   pb->haveCoverage = GL_TRUE;
    PB_CHECK_FLUSH(ctx, pb);
 }
 
diff --git a/src/mesa/swrast/s_aatritemp.h b/src/mesa/swrast/s_aatritemp.h
index 354dd48abe2..9f6695ce33e 100644
--- a/src/mesa/swrast/s_aatritemp.h
+++ b/src/mesa/swrast/s_aatritemp.h
@@ -1,4 +1,4 @@
-/* $Id: s_aatritemp.h,v 1.14 2001/05/15 16:18:13 brianp Exp $ */
+/* $Id: s_aatritemp.h,v 1.15 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -70,6 +70,9 @@
 #ifdef DO_INDEX
    GLfloat iPlane[4];                                       /* color index */
    GLuint index[MAX_WIDTH];
+   GLint icoverageSpan[MAX_WIDTH];
+#else
+   GLfloat coverageSpan[MAX_WIDTH];
 #endif
 #ifdef DO_SPEC
    GLfloat srPlane[4], sgPlane[4], sbPlane[4];              /* spec color */
@@ -283,6 +286,11 @@
          while (coverage > 0.0F) {
             /* (cx,cy) = center of fragment */
             const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
+#ifdef DO_INDEX
+            icoverageSpan[count] = compute_coveragei(pMin, pMid, pMax, ix, iy);
+#else
+            coverageSpan[count] = coverage;
+#endif
 #ifdef DO_Z
             z[count] = (GLdepth) solve_plane(cx, cy, zPlane);
 #endif
@@ -293,14 +301,10 @@
             rgba[count][RCOMP] = solve_plane_chan(cx, cy, rPlane);
             rgba[count][GCOMP] = solve_plane_chan(cx, cy, gPlane);
             rgba[count][BCOMP] = solve_plane_chan(cx, cy, bPlane);
-            rgba[count][ACOMP] = (GLchan) (solve_plane_chan(cx, cy, aPlane) * coverage);
+            rgba[count][ACOMP] = solve_plane_chan(cx, cy, aPlane);
 #endif
 #ifdef DO_INDEX
-            {
-               GLint frac = compute_coveragei(pMin, pMid, pMax, ix, iy);
-               GLint indx = (GLint) solve_plane(cx, cy, iPlane);
-               index[count] = (indx & ~0xf) | frac;
-            }
+            index[count] = (GLint) solve_plane(cx, cy, iPlane);
 #endif
 #ifdef DO_SPEC
             spec[count][RCOMP] = solve_plane_chan(cx, cy, srPlane);
@@ -344,33 +348,37 @@
 #ifdef DO_MULTITEX
 #  ifdef DO_SPEC
          _mesa_write_multitexture_span(ctx, n, startX, iy, z, fog,
-                                    (const GLfloat (*)[MAX_WIDTH]) s,
-                                    (const GLfloat (*)[MAX_WIDTH]) t,
-                                    (const GLfloat (*)[MAX_WIDTH]) u,
-                                    (GLfloat (*)[MAX_WIDTH]) lambda,
-                                    rgba, (const GLchan (*)[4]) spec,
-                                    GL_POLYGON);
+                                       (const GLfloat (*)[MAX_WIDTH]) s,
+                                       (const GLfloat (*)[MAX_WIDTH]) t,
+                                       (const GLfloat (*)[MAX_WIDTH]) u,
+                                       (GLfloat (*)[MAX_WIDTH]) lambda,
+                                       rgba, (const GLchan (*)[4]) spec,
+                                       coverageSpan,  GL_POLYGON);
 #  else
          _mesa_write_multitexture_span(ctx, n, startX, iy, z, fog,
-                                    (const GLfloat (*)[MAX_WIDTH]) s,
-                                    (const GLfloat (*)[MAX_WIDTH]) t,
-                                    (const GLfloat (*)[MAX_WIDTH]) u,
-                                    lambda, rgba, NULL, GL_POLYGON);
+                                       (const GLfloat (*)[MAX_WIDTH]) s,
+                                       (const GLfloat (*)[MAX_WIDTH]) t,
+                                       (const GLfloat (*)[MAX_WIDTH]) u,
+                                       lambda, rgba, NULL, coverageSpan,
+                                       GL_POLYGON);
 #  endif
 #elif defined(DO_TEX)
 #  ifdef DO_SPEC
          _mesa_write_texture_span(ctx, n, startX, iy, z, fog,
-                               s, t, u, lambda, rgba,
-                               (const GLchan (*)[4]) spec, GL_POLYGON);
+                                  s, t, u, lambda, rgba,
+                                  (const GLchan (*)[4]) spec,
+                                  coverageSpan, GL_POLYGON);
 #  else
          _mesa_write_texture_span(ctx, n, startX, iy, z, fog,
-                               s, t, u, lambda,
-                               rgba, NULL, GL_POLYGON);
+                                  s, t, u, lambda,
+                                  rgba, NULL, coverageSpan, GL_POLYGON);
 #  endif
 #elif defined(DO_RGBA)
-         _mesa_write_rgba_span(ctx, n, startX, iy, z, fog, rgba, GL_POLYGON);
+         _mesa_write_rgba_span(ctx, n, startX, iy, z, fog, rgba,
+                               coverageSpan, GL_POLYGON);
 #elif defined(DO_INDEX)
-         _mesa_write_index_span(ctx, n, startX, iy, z, fog, index, GL_POLYGON);
+         _mesa_write_index_span(ctx, n, startX, iy, z, fog, index,
+                                icoverageSpan, GL_POLYGON);
 #endif
       }
    }
@@ -407,6 +415,11 @@
          while (coverage > 0.0F) {
             /* (cx,cy) = center of fragment */
             const GLfloat cx = ix + 0.5F, cy = iy + 0.5F;
+#ifdef DO_INDEX
+            icoverageSpan[ix] = compute_coveragei(pMin, pMid, pMax, ix, iy);
+#else
+            coverageSpan[ix] = coverage;
+#endif
 #ifdef DO_Z
             z[ix] = (GLdepth) solve_plane(cx, cy, zPlane);
 #endif
@@ -417,14 +430,10 @@
             rgba[ix][RCOMP] = solve_plane_chan(cx, cy, rPlane);
             rgba[ix][GCOMP] = solve_plane_chan(cx, cy, gPlane);
             rgba[ix][BCOMP] = solve_plane_chan(cx, cy, bPlane);
-            rgba[ix][ACOMP] = (GLchan) (solve_plane_chan(cx, cy, aPlane) * coverage);
+            rgba[ix][ACOMP] = solve_plane_chan(cx, cy, aPlane);
 #endif
 #ifdef DO_INDEX
-            {
-               GLint frac = compute_coveragei(pMin, pMax, pMid, ix, iy);
-               GLint indx = (GLint) solve_plane(cx, cy, iPlane);
-               index[ix] = (indx & ~0xf) | frac;
-            }
+            index[ix] = (GLint) solve_plane(cx, cy, iPlane);
 #endif
 #ifdef DO_SPEC
             spec[ix][RCOMP] = solve_plane_chan(cx, cy, srPlane);
@@ -483,39 +492,43 @@
          }
 #  ifdef DO_SPEC
          _mesa_write_multitexture_span(ctx, n, left, iy, z + left, fog + left,
-                                    (const GLfloat (*)[MAX_WIDTH]) s,
-                                    (const GLfloat (*)[MAX_WIDTH]) t,
-                                    (const GLfloat (*)[MAX_WIDTH]) u,
-                                    lambda, rgba + left,
-                                    (const GLchan (*)[4]) (spec + left),
-                                    GL_POLYGON);
+                                       (const GLfloat (*)[MAX_WIDTH]) s,
+                                       (const GLfloat (*)[MAX_WIDTH]) t,
+                                       (const GLfloat (*)[MAX_WIDTH]) u,
+                                       lambda, rgba + left,
+                                       (const GLchan (*)[4]) (spec + left),
+                                       coverageSpan + left,
+                                       GL_POLYGON);
 #  else
          _mesa_write_multitexture_span(ctx, n, left, iy, z + left, fog + left,
-                                    (const GLfloat (*)[MAX_WIDTH]) s,
-                                    (const GLfloat (*)[MAX_WIDTH]) t,
-                                    (const GLfloat (*)[MAX_WIDTH]) u,
-                                    lambda,
-                                    rgba + left, NULL, GL_POLYGON);
+                                       (const GLfloat (*)[MAX_WIDTH]) s,
+                                       (const GLfloat (*)[MAX_WIDTH]) t,
+                                       (const GLfloat (*)[MAX_WIDTH]) u,
+                                       lambda,
+                                       rgba + left, NULL, coverageSpan + left,
+                                       GL_POLYGON);
 #  endif
 #elif defined(DO_TEX)
 #  ifdef DO_SPEC
          _mesa_write_texture_span(ctx, n, left, iy, z + left, fog + left,
-                               s + left, t + left, u + left,
-                               lambda + left, rgba + left,
-                               (const GLchan (*)[4]) (spec + left),
-                               GL_POLYGON);
+                                  s + left, t + left, u + left,
+                                  lambda + left, rgba + left,
+                                  (const GLchan (*)[4]) (spec + left),
+                                  coverageSpan + left,
+                                  GL_POLYGON);
 #  else
          _mesa_write_texture_span(ctx, n, left, iy, z + left, fog + left,
-                               s + left, t + left,
-                               u + left, lambda + left,
-                               rgba + left, NULL, GL_POLYGON);
+                                  s + left, t + left,
+                                  u + left, lambda + left,
+                                  rgba + left, NULL,
+                                  coverageSpan + left, GL_POLYGON);
 #  endif
 #elif defined(DO_RGBA)
          _mesa_write_rgba_span(ctx, n, left, iy, z + left, fog + left,
-                            rgba + left, GL_POLYGON);
+                               rgba + left, coverageSpan + left, GL_POLYGON);
 #elif defined(DO_INDEX)
          _mesa_write_index_span(ctx, n, left, iy, z + left, fog + left,
-                             index + left, GL_POLYGON);
+                               index + left, icoverageSpan + left, GL_POLYGON);
 #endif
       }
    }
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c
index f85af995d32..36e9974d387 100644
--- a/src/mesa/swrast/s_copypix.c
+++ b/src/mesa/swrast/s_copypix.c
@@ -1,4 +1,4 @@
-/* $Id: s_copypix.c,v 1.16 2001/03/19 02:25:36 keithw Exp $ */
+/* $Id: s_copypix.c,v 1.17 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -286,7 +286,8 @@ copy_conv_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
 				    (const GLchan (*)[4])rgba, desty);
       }
       else {
-         _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba, GL_BITMAP );
+         _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba,
+                                NULL, GL_BITMAP );
       }
    }
 
@@ -531,7 +532,8 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
 				    (const GLchan (*)[4])rgba, desty);
       }
       else {
-         _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba, GL_BITMAP );
+         _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0, rgba,
+                                NULL, GL_BITMAP );
       }
    }
 
@@ -641,10 +643,12 @@ static void copy_ci_pixels( GLcontext *ctx,
       }
 
       if (zoom) {
-         _mesa_write_zoomed_index_span( ctx, width, destx, dy, zspan, 0, indexes, desty );
+         _mesa_write_zoomed_index_span(ctx, width, destx, dy, zspan, 0,
+                                       indexes, desty );
       }
       else {
-         _mesa_write_index_span(ctx, width, destx, dy, zspan, 0, indexes, GL_BITMAP);
+         _mesa_write_index_span(ctx, width, destx, dy, zspan, 0, indexes,
+                                NULL, GL_BITMAP);
       }
    }
 
@@ -751,17 +755,17 @@ static void copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy,
          }
          else {
             _mesa_write_rgba_span( ctx, width, destx, dy, zspan, 0,
-				rgba, GL_BITMAP);
+                                   rgba, NULL, GL_BITMAP);
          }
       }
       else {
          if (zoom) {
             _mesa_write_zoomed_index_span( ctx, width, destx, dy,
-                                        zspan, 0, indexes, desty );
+                                           zspan, 0, indexes, desty );
          }
          else {
             _mesa_write_index_span( ctx, width, destx, dy,
-                                 zspan, 0, indexes, GL_BITMAP );
+                                    zspan, 0, indexes, NULL, GL_BITMAP );
          }
       }
    }
diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index ea4fef7d53a..e914eb70136 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -1,4 +1,4 @@
-/* $Id: s_drawpix.c,v 1.17 2001/04/20 19:21:41 brianp Exp $ */
+/* $Id: s_drawpix.c,v 1.18 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -513,10 +513,12 @@ draw_index_pixels( GLcontext *ctx, GLint x, GLint y,
                               type, source, &ctx->Unpack,
                               ctx->_ImageTransferState);
       if (zoom) {
-         _mesa_write_zoomed_index_span(ctx, drawWidth, x, y, zspan, 0, indexes, desty);
+         _mesa_write_zoomed_index_span(ctx, drawWidth, x, y, zspan, 0,
+                                       indexes, desty);
       }
       else {
-         _mesa_write_index_span(ctx, drawWidth, x, y, zspan, 0, indexes, GL_BITMAP);
+         _mesa_write_index_span(ctx, drawWidth, x, y, zspan, 0, indexes,
+                                NULL, GL_BITMAP);
       }
    }
 }
@@ -638,7 +640,8 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
          GLint i;
          for (i = 0; i < width; i++)
             zspan[i] = zptr[i];
-         _mesa_write_rgba_span( ctx, width, x, y, zspan, 0, rgba, GL_BITMAP );
+         _mesa_write_rgba_span(ctx, width, x, y, zspan, 0, rgba,
+                               NULL, GL_BITMAP);
       }
    }
    else if (type==GL_UNSIGNED_INT && ctx->Visual.depthBits == 32
@@ -649,7 +652,8 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
          const GLuint *zptr = (const GLuint *)
             _mesa_image_address(&ctx->Unpack, pixels, width, height,
                                 GL_DEPTH_COMPONENT, type, 0, row, 0);
-         _mesa_write_rgba_span( ctx, width, x, y, zptr, 0, rgba, GL_BITMAP );
+         _mesa_write_rgba_span(ctx, width, x, y, zptr, 0, rgba,
+                               NULL, GL_BITMAP);
       }
    }
    else {
@@ -674,20 +678,21 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
          if (ctx->Visual.rgbMode) {
             if (zoom) {
                _mesa_write_zoomed_rgba_span(ctx, width, x, y, zspan, 0,
-                                         (const GLchan (*)[4]) rgba, desty);
+                                            (const GLchan (*)[4]) rgba, desty);
             }
             else {
-               _mesa_write_rgba_span(ctx, width, x, y, zspan, 0, rgba, GL_BITMAP);
+               _mesa_write_rgba_span(ctx, width, x, y, zspan, 0,
+                                     rgba, NULL, GL_BITMAP);
             }
          }
          else {
             if (zoom) {
                _mesa_write_zoomed_index_span(ctx, width, x, y, zspan, 0,
-                                          ispan, GL_BITMAP);
+                                             ispan, GL_BITMAP);
             }
             else {
                _mesa_write_index_span(ctx, width, x, y, zspan, 0,
-				   ispan, GL_BITMAP);
+                                      ispan, NULL, GL_BITMAP);
             }
          }
 
@@ -832,16 +837,16 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
          }
 
          if (quickDraw) {
-            (*swrast->Driver.WriteRGBASpan)( ctx, width, x, y,
-                                          (CONST GLchan (*)[4]) rgba, NULL);
+            (*swrast->Driver.WriteRGBASpan)(ctx, width, x, y,
+                                            (CONST GLchan (*)[4]) rgba, NULL);
          }
          else if (zoom) {
-            _mesa_write_zoomed_rgba_span( ctx, width, x, y, zspan, 0,
-				       (CONST GLchan (*)[4]) rgba, desty );
+            _mesa_write_zoomed_rgba_span(ctx, width, x, y, zspan, 0,
+                                         (CONST GLchan (*)[4]) rgba, desty);
          }
          else {
-            _mesa_write_rgba_span( ctx, (GLuint) width, x, y, zspan, 0,
-				rgba, GL_BITMAP);
+            _mesa_write_rgba_span(ctx, (GLuint) width, x, y, zspan, 0,
+                                  rgba, NULL, GL_BITMAP);
          }
       }
    }
diff --git a/src/mesa/swrast/s_pointtemp.h b/src/mesa/swrast/s_pointtemp.h
index 7fe3351e665..9711238937f 100644
--- a/src/mesa/swrast/s_pointtemp.h
+++ b/src/mesa/swrast/s_pointtemp.h
@@ -1,4 +1,4 @@
-/* $Id: s_pointtemp.h,v 1.6 2001/05/09 17:31:46 brianp Exp $ */
+/* $Id: s_pointtemp.h,v 1.7 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -184,7 +184,7 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
       const GLfloat rmax = radius + 0.7071F;
       const GLfloat rmin2 = MAX2(0.0, rmin * rmin);
       const GLfloat rmax2 = rmax * rmax;
-      const GLfloat cscale = 256.0F / (rmax2 - rmin2);
+      const GLfloat cscale = 1.0F / (rmax2 - rmin2);
       const GLint xmin = (GLint) (vert->win[0] - radius);
       const GLint xmax = (GLint) (vert->win[0] + radius);
       const GLint ymin = (GLint) (vert->win[1] - radius);
@@ -225,15 +225,14 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
                alpha = vert->color[3];
 #endif
                if (dist2 >= rmin2) {
-                  GLint coverage = (GLint) (256.0F - (dist2 - rmin2) * cscale);
-#if FLAGS & RGBA
-		  /* coverage is in [0,256] */
-		  alpha = (alpha * coverage) >> 8;
-#else
-                  /* 4 fractional index bits */
-                  index = (index & ~0xf) | (coverage >> 4);  /* XXX verify */
-#endif
+                  /* compute partial coverage */
+                  PB_COVERAGE(PB, 1.0F - (dist2 - rmin2) * cscale);
 	       }
+               else {
+                  /* full coverage */
+                  PB_COVERAGE(PB, 1.0F);
+               }
+
 #endif /* SMOOTH */
 
 #if ((FLAGS & (ATTENUATE | RGBA)) == (ATTENUATE | RGBA))
@@ -273,6 +272,11 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
 #endif
 	 }
       }
+
+#if FLAGS & SMOOTH
+      PB->haveCoverage = GL_TRUE;
+#endif
+
       PB_CHECK_FLUSH(ctx,PB);
    }
 
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index c0c47f82b18..e161ff473fd 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1,4 +1,4 @@
-/* $Id: s_span.c,v 1.13 2001/05/03 22:13:32 brianp Exp $ */
+/* $Id: s_span.c,v 1.14 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -51,12 +51,12 @@
 
 
 
-
 /*
  * Apply the current polygon stipple pattern to a span of pixels.
  */
-static void stipple_polygon_span( GLcontext *ctx,
-                                  GLuint n, GLint x, GLint y, GLubyte mask[] )
+static void
+stipple_polygon_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                      GLubyte mask[] )
 {
    const GLuint highbit = 0x80000000;
    GLuint i, m, stipple;
@@ -83,8 +83,8 @@ static void stipple_polygon_span( GLcontext *ctx,
  *           as a special case:
  *           0 = all pixels clipped
  */
-static GLuint clip_span( GLcontext *ctx,
-                         GLint n, GLint x, GLint y, GLubyte mask[] )
+static GLuint
+clip_span( GLcontext *ctx, GLint n, GLint x, GLint y, GLubyte mask[] )
 {
    /* Clip to top and bottom */
    if (y < 0 || y >= ctx->DrawBuffer->Height) {
@@ -123,9 +123,9 @@ static GLuint clip_span( GLcontext *ctx,
 /*
  * Draw to more than one color buffer (or none).
  */
-static void multi_write_index_span( GLcontext *ctx, GLuint n,
-                                    GLint x, GLint y, const GLuint indexes[],
-                                    const GLubyte mask[] )
+static void
+multi_write_index_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                        const GLuint indexes[], const GLubyte mask[] )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    GLuint bufferBit;
@@ -178,10 +178,11 @@ static void multi_write_index_span( GLcontext *ctx, GLuint n,
  *         index - array of [n] color indexes
  *         primitive - either GL_POINT, GL_LINE, GL_POLYGON, or GL_BITMAP
  */
-void _mesa_write_index_span( GLcontext *ctx,
-                          GLuint n, GLint x, GLint y, const GLdepth z[],
-			  const GLfloat fog[],
-			  GLuint indexIn[], GLenum primitive )
+void
+_mesa_write_index_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                        const GLdepth z[], const GLfloat fog[],
+                        GLuint indexIn[], const GLint coverage[],
+                        GLenum primitive )
 {
    const GLuint modBits = FOG_BIT | BLEND_BIT | MASKING_BIT | LOGIC_OP_BIT;
    GLubyte mask[MAX_WIDTH];
@@ -244,6 +245,15 @@ void _mesa_write_index_span( GLcontext *ctx,
          _mesa_depth_fog_ci_pixels( ctx, n, z, index );
    }
 
+   /* Antialias coverage application */
+   if (coverage) {
+      GLuint i;
+      for (i = 0; i < n; i++) {
+         ASSERT(coverage[i] < 16);
+         index[i] = (index[i] & ~0xf) | coverage[i];
+      }
+   }
+
    if (swrast->_RasterMask & MULTI_DRAW_BIT) {
       /* draw to zero or two or more buffers */
       multi_write_index_span( ctx, n, x, y, index, mask );
@@ -269,11 +279,11 @@ void _mesa_write_index_span( GLcontext *ctx,
 
 
 
-void _mesa_write_monoindex_span( GLcontext *ctx,
-                              GLuint n, GLint x, GLint y,
-			      const GLdepth z[],
-			      const GLfloat fog[],
-			      GLuint index, GLenum primitive )
+void
+_mesa_write_monoindex_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                            const GLdepth z[], const GLfloat fog[],
+                            GLuint index, const GLint coverage[],
+                            GLenum primitive )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    GLubyte mask[MAX_WIDTH];
@@ -322,7 +332,8 @@ void _mesa_write_monoindex_span( GLcontext *ctx,
 
    if (ctx->Fog.Enabled
        || ctx->Color.IndexLogicOpEnabled
-       || ctx->Color.IndexMask != 0xffffffff) {
+       || ctx->Color.IndexMask != 0xffffffff
+       || coverage) {
       /* different index per pixel */
       GLuint indexes[MAX_WIDTH];
       for (i = 0; i < n; i++) {
@@ -336,6 +347,15 @@ void _mesa_write_monoindex_span( GLcontext *ctx,
  	    _mesa_depth_fog_ci_pixels( ctx, n, z, indexes );
       }
 
+      /* Antialias coverage application */
+      if (coverage) {
+         GLuint i;
+         for (i = 0; i < n; i++) {
+            ASSERT(coverage[i] < 16);
+            indexes[i] = (indexes[i] & ~0xf) | coverage[i];
+         }
+      }
+
       if (swrast->_RasterMask & MULTI_DRAW_BIT) {
          /* draw to zero or two or more buffers */
          multi_write_index_span( ctx, n, x, y, indexes, mask );
@@ -377,9 +397,9 @@ void _mesa_write_monoindex_span( GLcontext *ctx,
 /*
  * Draw to more than one RGBA color buffer (or none).
  */
-static void multi_write_rgba_span( GLcontext *ctx, GLuint n,
-                                   GLint x, GLint y, CONST GLchan rgba[][4],
-                                   const GLubyte mask[] )
+static void
+multi_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                       CONST GLchan rgba[][4], const GLubyte mask[] )
 {
    const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask);
    GLuint bufferBit;
@@ -442,11 +462,11 @@ static void multi_write_rgba_span( GLcontext *ctx, GLuint n,
 
 
 
-void _mesa_write_rgba_span( GLcontext *ctx,
-                         GLuint n, GLint x, GLint y, const GLdepth z[],
-			 const GLfloat *fog,
-                         GLchan rgbaIn[][4],
-                         GLenum primitive )
+void
+_mesa_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                       const GLdepth z[], const GLfloat fog[],
+                       GLchan rgbaIn[][4], const GLfloat coverage[],
+                       GLenum primitive )
 {
    const GLuint modBits = FOG_BIT | BLEND_BIT | MASKING_BIT |
                           LOGIC_OP_BIT | TEXTURE_BIT;
@@ -530,6 +550,14 @@ void _mesa_write_rgba_span( GLcontext *ctx,
 	 _mesa_depth_fog_rgba_pixels( ctx, n, z, rgba );
    }
 
+   /* Antialias coverage application */
+   if (coverage) {
+      GLuint i;
+      for (i = 0; i < n; i++) {
+         rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]);
+      }
+   }
+
    if (swrast->_RasterMask & MULTI_DRAW_BIT) {
       multi_write_rgba_span( ctx, n, x, y, (const GLchan (*)[4]) rgba, mask );
    }
@@ -578,11 +606,11 @@ void _mesa_write_rgba_span( GLcontext *ctx,
  *         r, g, b, a - the color of the pixels
  *         primitive - either GL_POINT, GL_LINE, GL_POLYGON or GL_BITMAP.
  */
-void _mesa_write_monocolor_span( GLcontext *ctx,
-                              GLuint n, GLint x, GLint y, const GLdepth z[],
-			      const GLfloat fog[],
-			      const GLchan color[4],
-                              GLenum primitive )
+void
+_mesa_write_monocolor_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                            const GLdepth z[], const GLfloat fog[],
+                            const GLchan color[4], const GLfloat coverage[],
+                            GLenum primitive )
 {
    const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask);
    GLuint i;
@@ -656,7 +684,7 @@ void _mesa_write_monocolor_span( GLcontext *ctx,
    }
 
    if (ctx->Color.ColorLogicOpEnabled || colorMask != 0xffffffff ||
-       (swrast->_RasterMask & (BLEND_BIT | FOG_BIT))) {
+       (swrast->_RasterMask & (BLEND_BIT | FOG_BIT)) || coverage) {
       /* assign same color to each pixel */
       for (i = 0; i < n; i++) {
 	 if (mask[i]) {
@@ -672,6 +700,14 @@ void _mesa_write_monocolor_span( GLcontext *ctx,
 	    _mesa_depth_fog_rgba_pixels( ctx, n, z, rgba );
       }
 
+      /* Antialias coverage application */
+      if (coverage) {
+         GLuint i;
+         for (i = 0; i < n; i++) {
+            rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]);
+         }
+      }
+
       if (swrast->_RasterMask & MULTI_DRAW_BIT) {
          multi_write_rgba_span( ctx, n, x, y,
                                 (const GLchan (*)[4]) rgba, mask );
@@ -734,7 +770,8 @@ void _mesa_write_monocolor_span( GLcontext *ctx,
  * Add specular color to base color.  This is used only when
  * GL_LIGHT_MODEL_COLOR_CONTROL = GL_SEPARATE_SPECULAR_COLOR.
  */
-static void add_colors(GLuint n, GLchan rgba[][4], CONST GLchan specular[][4] )
+static void
+add_colors(GLuint n, GLchan rgba[][4], CONST GLchan specular[][4] )
 {
    GLuint i;
    for (i = 0; i < n; i++) {
@@ -761,13 +798,13 @@ static void add_colors(GLuint n, GLchan rgba[][4], CONST GLchan specular[][4] )
  *         rgba - array of [n] color components
  *         primitive - either GL_POINT, GL_LINE, GL_POLYGON or GL_BITMAP.
  */
-void _mesa_write_texture_span( GLcontext *ctx,
-                            GLuint n, GLint x, GLint y, const GLdepth z[],
-			    const GLfloat fog[],
-			    const GLfloat s[], const GLfloat t[],
-                            const GLfloat u[], GLfloat lambda[],
-			    GLchan rgbaIn[][4], CONST GLchan spec[][4],
-			    GLenum primitive )
+void
+_mesa_write_texture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                          const GLdepth z[], const GLfloat fog[],
+                          const GLfloat s[], const GLfloat t[],
+                          const GLfloat u[], GLfloat lambda[],
+                          GLchan rgbaIn[][4], CONST GLchan spec[][4],
+                          const GLfloat coverage[], GLenum primitive )
 {
    const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask);
    GLubyte mask[MAX_WIDTH];
@@ -859,8 +896,9 @@ void _mesa_write_texture_span( GLcontext *ctx,
    /* Add base and specular colors */
    if (spec &&
        (ctx->Fog.ColorSumEnabled ||
-	(ctx->Light.Enabled && ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)))
-     add_colors( n, rgba, spec );   /* rgba = rgba + spec */
+	(ctx->Light.Enabled &&
+         ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)))
+      add_colors( n, rgba, spec );   /* rgba = rgba + spec */
 
    /* Per-pixel fog */
    if (ctx->Fog.Enabled) {
@@ -870,6 +908,14 @@ void _mesa_write_texture_span( GLcontext *ctx,
 	 _mesa_depth_fog_rgba_pixels( ctx, n, z, rgba );
    }
 
+   /* Antialias coverage application */
+   if (coverage) {
+      GLuint i;
+      for (i = 0; i < n; i++) {
+         rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]);
+      }
+   }
+
    if (swrast->_RasterMask & MULTI_DRAW_BIT) {
       multi_write_rgba_span( ctx, n, x, y, (const GLchan (*)[4]) rgba, mask );
    }
@@ -903,17 +949,16 @@ void _mesa_write_texture_span( GLcontext *ctx,
  * As above but perform multiple stages of texture application.
  */
 void
-_mesa_write_multitexture_span( GLcontext *ctx,
-                            GLuint n, GLint x, GLint y,
-                            const GLdepth z[],
-			    const GLfloat fog[],
-                            CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            GLfloat lambda[][MAX_WIDTH],
-                            GLchan rgbaIn[MAX_TEXTURE_UNITS][4],
-                            CONST GLchan spec[MAX_TEXTURE_UNITS][4],
-                            GLenum primitive )
+_mesa_write_multitexture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                               const GLdepth z[], const GLfloat fog[],
+                               CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               GLfloat lambda[][MAX_WIDTH],
+                               GLchan rgbaIn[MAX_TEXTURE_UNITS][4],
+                               CONST GLchan spec[MAX_TEXTURE_UNITS][4],
+                               const GLfloat coverage[],
+                               GLenum primitive )
 {
    GLubyte mask[MAX_WIDTH];
    GLboolean write_all = GL_TRUE;
@@ -1022,6 +1067,14 @@ _mesa_write_multitexture_span( GLcontext *ctx,
 	 _mesa_depth_fog_rgba_pixels( ctx, n, z, rgba );
    }
 
+   /* Antialias coverage application */
+   if (coverage) {
+      GLuint i;
+      for (i = 0; i < n; i++) {
+         rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]);
+      }
+   }
+
    if (swrast->_RasterMask & MULTI_DRAW_BIT) {
       multi_write_rgba_span( ctx, n, x, y, (const GLchan (*)[4]) rgba, mask );
    }
@@ -1058,9 +1111,9 @@ _mesa_write_multitexture_span( GLcontext *ctx,
  * Read RGBA pixels from frame buffer.  Clipping will be done to prevent
  * reading ouside the buffer's boundaries.
  */
-void _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
-                        GLuint n, GLint x, GLint y,
-                        GLchan rgba[][4] )
+void
+_mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
+                      GLuint n, GLint x, GLint y, GLchan rgba[][4] )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    if (y < 0 || y >= buffer->Height
@@ -1112,8 +1165,9 @@ void _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
  * Read CI pixels from frame buffer.  Clipping will be done to prevent
  * reading ouside the buffer's boundaries.
  */
-void _mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
-                         GLuint n, GLint x, GLint y, GLuint indx[] )
+void
+_mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
+                       GLuint n, GLint x, GLint y, GLuint indx[] )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    if (y < 0 || y >= buffer->Height
diff --git a/src/mesa/swrast/s_span.h b/src/mesa/swrast/s_span.h
index b1bb847bf67..5c5e49c12d0 100644
--- a/src/mesa/swrast/s_span.h
+++ b/src/mesa/swrast/s_span.h
@@ -1,4 +1,4 @@
-/* $Id: s_span.h,v 1.5 2001/05/03 22:13:32 brianp Exp $ */
+/* $Id: s_span.h,v 1.6 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -25,9 +25,6 @@
  */
 
 
-
-
-
 #ifndef S_SPAN_H
 #define S_SPAN_H
 
@@ -36,64 +33,62 @@
 #include "swrast.h"
 
 
-extern void _mesa_write_index_span( GLcontext *ctx,
-                                 GLuint n, GLint x, GLint y, const GLdepth z[],
-				 const GLfloat fog[],
-				 GLuint index[], GLenum primitive );
+extern void
+_mesa_write_index_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                        const GLdepth z[], const GLfloat fog[],
+                        GLuint index[], const GLint coverage[],
+                        GLenum primitive );
 
 
-extern void _mesa_write_monoindex_span( GLcontext *ctx,
-                                     GLuint n, GLint x, GLint y,
-                                     const GLdepth z[],
-				     const GLfloat fog[],
-				     GLuint index, GLenum primitive );
+extern void
+_mesa_write_monoindex_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                            const GLdepth z[], const GLfloat fog[],
+                            GLuint index, const GLint coverage[],
+                            GLenum primitive );
 
 
-extern void _mesa_write_rgba_span( GLcontext *ctx,
-                                GLuint n, GLint x, GLint y, const GLdepth z[],
-				const GLfloat fog[],
-                                GLchan rgba[][4], GLenum primitive );
+extern void
+_mesa_write_rgba_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                       const GLdepth z[], const GLfloat fog[],
+                       GLchan rgba[][4], const GLfloat coverage[],
+                       GLenum primitive );
 
 
-extern void _mesa_write_monocolor_span( GLcontext *ctx,
-                                     GLuint n, GLint x, GLint y,
-                                     const GLdepth z[],
-				     const GLfloat fog[],
-				     const GLchan color[4],
-                                     GLenum primitive );
+extern void
+_mesa_write_monocolor_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                            const GLdepth z[], const GLfloat fog[],
+                            const GLchan color[4], const GLfloat coverage[],
+                            GLenum primitive );
 
 
-extern void _mesa_write_texture_span( GLcontext *ctx,
-                                   GLuint n, GLint x, GLint y,
-                                   const GLdepth z[],
-				   const GLfloat fog[],
-				   const GLfloat s[], const GLfloat t[],
-                                   const GLfloat u[], GLfloat lambda[],
-				   GLchan rgba[][4], CONST GLchan spec[][4],
-                                   GLenum primitive );
+extern void
+_mesa_write_texture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                          const GLdepth z[], const GLfloat fog[],
+                          const GLfloat s[], const GLfloat t[],
+                          const GLfloat u[], GLfloat lambda[],
+                          GLchan rgba[][4], CONST GLchan spec[][4],
+                          const GLfloat coverage[], GLenum primitive );
 
 
 extern void
-_mesa_write_multitexture_span( GLcontext *ctx,
-                            GLuint n, GLint x, GLint y,
-                            const GLdepth z[],
-			    const GLfloat fog[],
-                            CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH],
-                            GLchan rgba[][4],
-                            CONST GLchan spec[][4],
-                            GLenum primitive );
+_mesa_write_multitexture_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
+                               const GLdepth z[], const GLfloat fog[],
+                               CONST GLfloat s[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               CONST GLfloat t[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               CONST GLfloat u[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               GLfloat lambda[MAX_TEXTURE_UNITS][MAX_WIDTH],
+                               GLchan rgba[][4], CONST GLchan spec[][4],
+                               const GLfloat coverage[],  GLenum primitive );
 
 
-extern void _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
-                               GLuint n, GLint x, GLint y,
-                               GLchan rgba[][4] );
+extern void
+_mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
+                      GLuint n, GLint x, GLint y, GLchan rgba[][4] );
 
 
-extern void _mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
-                                GLuint n, GLint x, GLint y, GLuint indx[] );
+extern void
+_mesa_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
+                       GLuint n, GLint x, GLint y, GLuint indx[] );
 
 
 #endif
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index 29805a537a6..b3c58101237 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -1,4 +1,4 @@
-/* $Id: s_triangle.c,v 1.26 2001/05/14 16:23:04 brianp Exp $ */
+/* $Id: s_triangle.c,v 1.27 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -92,7 +92,7 @@ static void flat_ci_triangle( GLcontext *ctx,
       span.fog += span.fogStep;						\
    }									\
    _mesa_write_monoindex_span(ctx, span.count, span.x, span.y,		\
-	                      zSpan, fogSpan, v0->index, GL_POLYGON );
+	                      zSpan, fogSpan, v0->index, NULL, GL_POLYGON );
 
 #include "s_tritemp.h"
 }
@@ -125,7 +125,7 @@ static void smooth_ci_triangle( GLcontext *ctx,
       span.fog += span.fogStep;						\
    }									\
    _mesa_write_index_span(ctx, span.count, span.x, span.y,		\
-                          zSpan, fogSpan, indexSpan, GL_POLYGON);
+                          zSpan, fogSpan, indexSpan, NULL, GL_POLYGON);
 
 #include "s_tritemp.h"
 }
@@ -154,8 +154,8 @@ static void flat_rgba_triangle( GLcontext *ctx,
       fogSpan[i] = span.fog;						\
       span.fog += span.fogStep;						\
    }									\
-   _mesa_write_monocolor_span(ctx, span.count, span.x, span.y,		\
-                              zSpan, fogSpan, v2->color, GL_POLYGON );
+   _mesa_write_monocolor_span(ctx, span.count, span.x, span.y, zSpan,	\
+                              fogSpan, v2->color, NULL, GL_POLYGON );
 
 #include "s_tritemp.h"
 
@@ -201,7 +201,7 @@ static void smooth_rgba_triangle( GLcontext *ctx,
    }								\
    _mesa_write_rgba_span(ctx, span.count, span.x, span.y,	\
                          (CONST GLdepth *) zSpan,		\
-                         fogSpan, rgbaSpan, GL_POLYGON);
+                         fogSpan, rgbaSpan, NULL, GL_POLYGON);
 
 #include "s_tritemp.h"
 
@@ -592,7 +592,7 @@ affine_span(GLcontext *ctx, struct triangle_span *span,
       break;
    }
    _mesa_write_rgba_span(ctx, span->count, span->x, span->y,
-                         zspan, fogspan, rgba, GL_POLYGON);
+                         zspan, fogspan, rgba, NULL, GL_POLYGON);
 
 #undef SPAN1
 #undef SPAN2
@@ -1400,8 +1400,8 @@ static void near_persp_textured_triangle(GLcontext *ctx,
             }								\
          }								\
          _mesa_write_rgba_span( ctx, n, LEFT, Y, zspan,			\
-                             fogspan, rgba, GL_POLYGON);		\
-         span.red = span.green = span.blue = span.alpha = 0;					\
+                             fogspan, rgba, NULL, GL_POLYGON);		\
+         span.red = span.green = span.blue = span.alpha = 0;		\
       }									\
    }									\
 
@@ -1586,9 +1586,9 @@ static void lin_persp_textured_triangle( GLcontext *ctx,
                abort();					\
             }						\
          }						\
-         _mesa_write_rgba_span( ctx, n, LEFT, Y, zspan,	\
-                             fogspan,                   \
-                             rgba, GL_POLYGON );	\
+         _mesa_write_rgba_span(ctx, n, LEFT, Y, zspan,	\
+                               fogspan, rgba, NULL,     \
+                               GL_POLYGON);	        \
       }							\
    }
 
@@ -1807,7 +1807,7 @@ rasterize_span(GLcontext *ctx, const struct triangle_span *span)
                                           (const GLfloat (*)[MAX_WIDTH]) mrTex,
                                           (GLfloat (*)[MAX_WIDTH]) mLambda,
                                           rgba, (CONST GLchan (*)[4]) spec,
-                                          GL_POLYGON );
+                                          NULL, GL_POLYGON );
          }
          else {
             _mesa_write_multitexture_span(ctx, span->count, span->x, span->y,
@@ -1816,7 +1816,7 @@ rasterize_span(GLcontext *ctx, const struct triangle_span *span)
                                           (const GLfloat (*)[MAX_WIDTH]) mtTex,
                                           (const GLfloat (*)[MAX_WIDTH]) mrTex,
                                           (GLfloat (*)[MAX_WIDTH]) mLambda,
-                                          rgba, NULL, GL_POLYGON);
+                                          rgba, NULL, NULL, GL_POLYGON);
          }
       }
       else {
@@ -1825,12 +1825,12 @@ rasterize_span(GLcontext *ctx, const struct triangle_span *span)
             _mesa_write_texture_span(ctx, span->count, span->x, span->y,
                                      z, fogPtr, sTex, tTex, rTex, lambda,
                                      rgba, (CONST GLchan (*)[4]) spec,
-                                     GL_POLYGON);
+                                     NULL, GL_POLYGON);
          }
          else {
             _mesa_write_texture_span(ctx, span->count, span->x, span->y,
                                      z, fogPtr, sTex, tTex, rTex, lambda,
-                                     rgba, NULL, GL_POLYGON);
+                                     rgba, NULL, NULL, GL_POLYGON);
          }
       }
    }
@@ -1910,7 +1910,7 @@ static void general_textured_triangle( GLcontext *ctx,
    }									\
    _mesa_write_texture_span(ctx, span.count, span.x, span.y,		\
                             zSpan, fogSpan, sSpan, tSpan, uSpan,	\
-                            NULL, rgbaSpan, NULL, GL_POLYGON );
+                            NULL, rgbaSpan, NULL, NULL, GL_POLYGON );
 
 #include "s_tritemp.h"
 }
diff --git a/src/mesa/swrast/s_zoom.c b/src/mesa/swrast/s_zoom.c
index 74053d0a5b2..ff3d3f5e0c1 100644
--- a/src/mesa/swrast/s_zoom.c
+++ b/src/mesa/swrast/s_zoom.c
@@ -1,4 +1,4 @@
-/* $Id: s_zoom.c,v 1.5 2001/05/03 22:13:32 brianp Exp $ */
+/* $Id: s_zoom.c,v 1.6 2001/05/15 21:30:27 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -143,8 +143,7 @@ _mesa_write_zoomed_rgba_span( GLcontext *ctx,
    /* write the span */
    for (r=r0; r<r1; r++) {
       _mesa_write_rgba_span( ctx, m, x+skipcol, r, zdepth,
-			  (fog ? zfog : 0),
-			  zrgba, GL_BITMAP );
+			  (fog ? zfog : 0), zrgba, NULL, GL_BITMAP );
    }
 }
 
@@ -254,7 +253,7 @@ _mesa_write_zoomed_rgb_span( GLcontext *ctx,
    /* write the span */
    for (r=r0; r<r1; r++) {
       _mesa_write_rgba_span( ctx, m, x+skipcol, r, zdepth,
-			  (fog ? zfog : 0), zrgba, GL_BITMAP );
+			  (fog ? zfog : 0), zrgba, NULL, GL_BITMAP );
    }
 }
 
@@ -361,7 +360,7 @@ _mesa_write_zoomed_index_span( GLcontext *ctx,
    /* write the span */
    for (r=r0; r<r1; r++) {
       _mesa_write_index_span( ctx, m, x+skipcol, r, zdepth,
-			   (fog ? zfog : 0), zindexes, GL_BITMAP );
+                              (fog ? zfog : 0), zindexes, NULL, GL_BITMAP );
    }
 }