From f19cba049d7af1824ddc0236e4ff1e910d6002a7 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 14 Jul 2000 14:04:07 +0000
Subject: [PATCH] Fixed pixel color problem in general_flat_rgba_line(). Added
 debug code

---
 src/mesa/main/lines.c | 98 ++++++++++++++++++++++++++++---------------
 1 file changed, 65 insertions(+), 33 deletions(-)

diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index f25beb4dad7..991cbd06682 100644
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,4 +1,4 @@
-/* $Id: lines.c,v 1.11 2000/06/28 23:09:36 brianp Exp $ */
+/* $Id: lines.c,v 1.12 2000/07/14 14:04:07 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -557,13 +557,8 @@ static void general_smooth_rgba_line( GLcontext *ctx,
 static void general_flat_rgba_line( GLcontext *ctx,
                                     GLuint vert0, GLuint vert1, GLuint pvert )
 {
-   GLint count;
-   GLint *pbx = ctx->PB->x;
-   GLint *pby = ctx->PB->y;
-   GLdepth *pbz = ctx->PB->z;
-   GLubyte *color = ctx->VB->ColorPtr->data[pvert];
+   const GLubyte *color = ctx->VB->ColorPtr->data[pvert];
    PB_SET_COLOR( ctx->PB, color[0], color[1], color[2], color[3] );
-   count = ctx->PB->count;
 
    if (ctx->Line.StippleFlag) {
       /* stippled */
@@ -571,12 +566,7 @@ static void general_flat_rgba_line( GLcontext *ctx,
 #define INTERP_Z 1
 #define WIDE 1
 #define STIPPLE 1
-#define PLOT(X,Y)			\
-	pbx[count] = X;			\
-	pby[count] = Y;			\
-	pbz[count] = Z;			\
-	count++;			\
-	CHECK_FULL(count);
+#define PLOT(X,Y)  PB_WRITE_PIXEL(ctx->PB, X, Y, Z);
 #include "linetemp.h"
    }
    else {
@@ -585,18 +575,10 @@ static void general_flat_rgba_line( GLcontext *ctx,
          /* special case: unstippled and width=2 */
 #define INTERP_XY 1
 #define INTERP_Z 1
-#define XMAJOR_PLOT(X,Y)			\
-	pbx[count] = X;  pbx[count+1] = X;	\
-	pby[count] = Y;  pby[count+1] = Y+1;	\
-	pbz[count] = Z;  pbz[count+1] = Z;	\
-	count += 2;				\
-	CHECK_FULL(count);
-#define YMAJOR_PLOT(X,Y)			\
-	pbx[count] = X;  pbx[count+1] = X+1;	\
-	pby[count] = Y;  pby[count+1] = Y;	\
-	pbz[count] = Z;  pbz[count+1] = Z;	\
-	count += 2;				\
-	CHECK_FULL(count);
+#define XMAJOR_PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z); \
+                         PB_WRITE_PIXEL(ctx->PB, X, Y+1, Z);
+#define YMAJOR_PLOT(X,Y)  PB_WRITE_PIXEL(ctx->PB, X, Y, Z); \
+                          PB_WRITE_PIXEL(ctx->PB, X+1, Y, Z);
 #include "linetemp.h"
       }
       else {
@@ -604,17 +586,11 @@ static void general_flat_rgba_line( GLcontext *ctx,
 #define INTERP_XY 1
 #define INTERP_Z 1
 #define WIDE 1
-#define PLOT(X,Y)			\
-	pbx[count] = X;			\
-	pby[count] = Y;			\
-	pbz[count] = Z;			\
-	count++;			\
-	CHECK_FULL(count);
+#define PLOT(X,Y) PB_WRITE_PIXEL(ctx->PB, X, Y, Z);
 #include "linetemp.h"
       }
    }
 
-   ctx->PB->count = count;
    gl_flush_pb(ctx);
 }
 
@@ -1033,6 +1009,61 @@ static void null_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv )
 }
 
 
+
+#ifdef DEBUG
+void
+_mesa_print_line_function(GLcontext *ctx)
+{
+   printf("Line Func == ");
+   if (ctx->Driver.LineFunc == flat_ci_line)
+      printf("flat_ci_line\n");
+   else if (ctx->Driver.LineFunc == flat_ci_z_line)
+      printf("flat_ci_z_line\n");
+   else if (ctx->Driver.LineFunc == flat_rgba_line)
+      printf("flat_rgba_line\n");
+   else if (ctx->Driver.LineFunc == flat_rgba_z_line)
+      printf("flat_rgba_z_line\n");
+   else if (ctx->Driver.LineFunc == smooth_ci_line)
+      printf("smooth_ci_line\n");
+   else if (ctx->Driver.LineFunc == smooth_ci_z_line)
+      printf("smooth_ci_z_line\n");
+   else if (ctx->Driver.LineFunc == smooth_rgba_line)
+      printf("smooth_rgba_line\n");
+   else if (ctx->Driver.LineFunc == smooth_rgba_z_line)
+      printf("smooth_rgba_z_line\n");
+   else if (ctx->Driver.LineFunc == general_smooth_ci_line)
+      printf("general_smooth_ci_line\n");
+   else if (ctx->Driver.LineFunc == general_flat_ci_line)
+      printf("general_flat_ci_line\n");
+   else if (ctx->Driver.LineFunc == general_smooth_rgba_line)
+      printf("general_smooth_rgba_line\n");
+   else if (ctx->Driver.LineFunc == general_flat_rgba_line)
+      printf("general_flat_rgba_line\n");
+   else if (ctx->Driver.LineFunc == flat_textured_line)
+      printf("flat_textured_line\n");
+   else if (ctx->Driver.LineFunc == smooth_textured_line)
+      printf("smooth_textured_line\n");
+   else if (ctx->Driver.LineFunc == smooth_multitextured_line)
+      printf("smooth_multitextured_line\n");
+   else if (ctx->Driver.LineFunc == flat_multitextured_line)
+      printf("flat_multitextured_line\n");
+   else if (ctx->Driver.LineFunc == aa_rgba_line)
+      printf("aa_rgba_line\n");
+   else if (ctx->Driver.LineFunc == aa_tex_rgba_line)
+      printf("aa_tex_rgba_line\n");
+   else if (ctx->Driver.LineFunc == aa_multitex_rgba_line)
+      printf("aa_multitex_rgba_line\n");
+   else if (ctx->Driver.LineFunc == aa_ci_line)
+      printf("aa_ci_line\n");
+   else if (ctx->Driver.LineFunc == null_line)
+      printf("null_line\n");
+   else
+      printf("Driver func %p\n", ctx->Driver.PointsFunc);
+}
+#endif
+
+
+
 /*
  * Determine which line drawing function to use given the current
  * rendering context.
@@ -1143,5 +1174,6 @@ void gl_set_line_function( GLcontext *ctx )
       /* GL_SELECT mode */
       ctx->Driver.LineFunc = gl_select_line;
    }
-}
 
+   /*_mesa_print_line_function(ctx);*/
+}
-- 
2.30.2