From fcd7c37fd3d0f61cf6ac81170bc0b3fca64ad9bb Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Fri, 30 Nov 2007 13:01:57 -0700
Subject: fix broken two-sided stencil
---
src/mesa/swrast_setup/ss_context.c | 3 +++
src/mesa/swrast_setup/ss_triangle.c | 10 ++++++----
src/mesa/swrast_setup/ss_tritmp.h | 2 --
3 files changed, 9 insertions(+), 6 deletions(-)
(limited to 'src/mesa/swrast_setup')
diff --git a/src/mesa/swrast_setup/ss_context.c b/src/mesa/swrast_setup/ss_context.c
index a9c7d941e5..a4f949ddfe 100644
--- a/src/mesa/swrast_setup/ss_context.c
+++ b/src/mesa/swrast_setup/ss_context.c
@@ -201,6 +201,9 @@ _swsetup_RenderStart( GLcontext *ctx )
swsetup->NewState = 0;
+ /* This will change if drawing unfilled tris */
+ _swrast_SetFacing(ctx, 0);
+
_swrast_render_start(ctx);
/* Important */
diff --git a/src/mesa/swrast_setup/ss_triangle.c b/src/mesa/swrast_setup/ss_triangle.c
index b4207f2c64..4817d23932 100644
--- a/src/mesa/swrast_setup/ss_triangle.c
+++ b/src/mesa/swrast_setup/ss_triangle.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.1
+ * Version: 7.1
*
- * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -68,6 +68,8 @@ static void _swsetup_render_line_tri( GLcontext *ctx,
return;
}
+ _swrast_SetFacing(ctx, facing);
+
if (ctx->Light.ShadeModel == GL_FLAT) {
COPY_CHAN4(c[0], v0->color);
COPY_CHAN4(c[1], v1->color);
@@ -127,6 +129,8 @@ static void _swsetup_render_point_tri( GLcontext *ctx,
return;
}
+ _swrast_SetFacing(ctx, facing);
+
if (ctx->Light.ShadeModel == GL_FLAT) {
/* save colors/indexes for v0, v1 vertices */
COPY_CHAN4(c[0], v0->color);
@@ -311,6 +315,4 @@ void _swsetup_choose_trifuncs( GLcontext *ctx )
tnl->Driver.Render.Quad = quad_tab[ind];
tnl->Driver.Render.Line = swsetup_line;
tnl->Driver.Render.Points = swsetup_points;
-
- ctx->_Facing = 0;
}
diff --git a/src/mesa/swrast_setup/ss_tritmp.h b/src/mesa/swrast_setup/ss_tritmp.h
index 7d1bc23465..97d2f4a16b 100644
--- a/src/mesa/swrast_setup/ss_tritmp.h
+++ b/src/mesa/swrast_setup/ss_tritmp.h
@@ -49,7 +49,6 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
v[1] = &verts[e1];
v[2] = &verts[e2];
-
if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT))
{
GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0];
@@ -61,7 +60,6 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT))
{
facing = (cc < 0.0) ^ ctx->Polygon._FrontBit;
- ctx->_Facing = facing;
if (IND & SS_UNFILLED_BIT)
mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode;
--
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