From c618005dcff0d4011a77cfebd109880eb784d581 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Wed, 1 Aug 2001 05:10:42 +0000
Subject: Fix copying problem (light spots) on evaluated surfaces.

---
 src/mesa/tnl/t_imm_fixup.c | 41 +++++++++++++++++++++++++++--------------
 1 file changed, 27 insertions(+), 14 deletions(-)

(limited to 'src/mesa/tnl/t_imm_fixup.c')

diff --git a/src/mesa/tnl/t_imm_fixup.c b/src/mesa/tnl/t_imm_fixup.c
index 607235d327..b5f191e3a3 100644
--- a/src/mesa/tnl/t_imm_fixup.c
+++ b/src/mesa/tnl/t_imm_fixup.c
@@ -1,4 +1,4 @@
-/* $Id: t_imm_fixup.c,v 1.23 2001/07/17 21:44:37 keithw Exp $ */
+/* $Id: t_imm_fixup.c,v 1.24 2001/08/01 05:10:42 keithw Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -74,8 +74,14 @@ _tnl_fixup_3f( float data[][3], GLuint flag[], GLuint start, GLuint match )
 {
    GLuint i = start;
 
+
    for (;;) {
       if ((flag[++i] & match) == 0) {
+/*  	 fprintf(stderr, "_tnl_fixup_3f copy to %p values %f %f %f\n", */
+/*  		 data[i],  */
+/*  		 data[i-1][0], */
+/*  		 data[i-1][1], */
+/*  		 data[i-1][2]); */
 	 COPY_3V(data[i], data[i-1]);
 	 if (flag[i] & VERT_END_VB) break;
       }
@@ -145,6 +151,8 @@ fixup_first_3f( GLfloat data[][3], GLuint flag[], GLuint match,
    GLuint i = start-1;
    match |= VERT_END_VB;
 
+/*     fprintf(stderr, "fixup_first_3f\n"); */
+
    while ((flag[++i]&match) == 0)
       COPY_3FV(data[i], dflt);
 }
@@ -190,7 +198,7 @@ void _tnl_fixup_input( GLcontext *ctx, struct immediate *IM )
    TNLcontext *tnl = TNL_CONTEXT(ctx);
    GLuint start = IM->CopyStart;
    GLuint andflag = IM->CopyAndFlag;
-   GLuint orflag = IM->CopyOrFlag;
+   GLuint orflag = IM->CopyOrFlag | IM->Evaluated;
    GLuint fixup;
 
    IM->CopyTexSize = IM->TexSize;
@@ -421,23 +429,21 @@ void _tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
       next->CopyAndFlag &= VERT_ELT;
    }
    else {
-      /* prev->CopyOrFlag is hacked to include values generated by eval:
-       */
-      GLuint copy = tnl->pipeline.inputs & prev->CopyOrFlag;
+      GLuint copy = tnl->pipeline.inputs & (prev->CopyOrFlag|prev->Evaluated);
       GLuint flag;
 
       if (is_fan_like[ctx->Driver.CurrentExecPrimitive]) {
-	 next->TexSize |= tnl->ExecCopyTexSize;
-	 next->CopyOrFlag |= (prev->CopyOrFlag & VERT_FIXUP);
-	 next->CopyAndFlag &= (prev->CopyOrFlag & VERT_FIXUP);
-	 flag = (prev->CopyOrFlag & VERT_FIXUP);
+	 flag = ((prev->CopyOrFlag|prev->Evaluated) & VERT_FIXUP);
+	 next->CopyOrFlag |= flag;
       } 
       else {
 	 /* Don't let an early 'glColor', etc. poison the elt path.
 	  */
-	 next->CopyAndFlag &= (prev->OrFlag & VERT_FIXUP);
-	 flag = (prev->OrFlag & VERT_FIXUP);
+	 flag = ((prev->OrFlag|prev->Evaluated) & VERT_FIXUP);
       }
+
+      next->TexSize |= tnl->ExecCopyTexSize;
+      next->CopyAndFlag &= flag;
 	 
 
       /* Copy whole vertices
@@ -455,8 +461,15 @@ void _tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
 	  */
 	 COPY_4FV( next->Obj[dst], inputs->Obj.data[isrc] );
 
-	 if (copy & VERT_NORM) 
+	 if (copy & VERT_NORM) {
+/*  	    fprintf(stderr, "copy vert norm %d to %d (%p): %f %f %f\n", */
+/*  		    isrc, dst,  */
+/*  		    next->Normal[dst], */
+/*  		    inputs->Normal.data[isrc][0], */
+/*  		    inputs->Normal.data[isrc][1], */
+/*  		    inputs->Normal.data[isrc][2]); */
 	    COPY_3FV( next->Normal[dst], inputs->Normal.data[isrc] );
+	 }
 
 	 if (copy & VERT_RGBA)
 	    COPY_4FV( next->Color[dst], 
@@ -490,8 +503,7 @@ void _tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
 	 }
 
 	 next->Flag[dst] = flag;
-	 next->OrFlag |= prev->Flag[src]; /* for non-fanlike prims, 
-					     otherwise redundant */
+	 next->CopyOrFlag |= prev->Flag[src];
       }
    }
 
@@ -514,6 +526,7 @@ void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
    GLuint fixup;
    GLuint start = IM->Start;
 
+   IM->Evaluated = 0;
    IM->CopyOrFlag = IM->OrFlag;	  
    IM->CopyAndFlag = IM->AndFlag; 
    IM->CopyTexSize = IM->TexSize | tnl->ExecCopyTexSize;
-- 
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