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authorVille Syrjälä <ville.syrjala@linux.intel.com>2015-03-23 14:47:18 +0200
committerIan Romanick <ian.d.romanick@intel.com>2015-10-06 11:16:19 -0700
commitb15b4581d15684d59e1fc4d7cad72ece4dd9fcb0 (patch)
treec336d22b5f9f146412d2fdf4fced4e7c839e4193 /src/mesa/tnl_dd
parent5ca00e0b8dff529f33c8b1685a9109a78090987c (diff)
t_dd_dmatmp: Allow flat shaded polygons with tri fans
We can allow rendering flat shaded polygons using tri fans if we check the provoking vertex convention. v2 (idr): Remove _EXT suffixes from GL_FIRST_VERTEX_CONVENTION. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Diffstat (limited to 'src/mesa/tnl_dd')
-rw-r--r--src/mesa/tnl_dd/t_dd_dmatmp.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/tnl_dd/t_dd_dmatmp.h b/src/mesa/tnl_dd/t_dd_dmatmp.h
index 181cf6701dd..7d03b026bd5 100644
--- a/src/mesa/tnl_dd/t_dd_dmatmp.h
+++ b/src/mesa/tnl_dd/t_dd_dmatmp.h
@@ -316,7 +316,8 @@ static void TAG(render_poly_verts)(struct gl_context *ctx,
}
FLUSH();
- } else if (ctx->Light.ShadeModel == GL_SMOOTH) {
+ } else if (ctx->Light.ShadeModel == GL_SMOOTH ||
+ ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION) {
TAG(render_tri_fan_verts)( ctx, start, count, flags );
} else {
unreachable("Cannot draw primitive; validate_render should have "
@@ -458,7 +459,8 @@ static bool TAG(validate_render)(struct gl_context *ctx,
ok = true;
break;
case GL_POLYGON:
- ok = (HAVE_POLYGONS) || ctx->Light.ShadeModel == GL_SMOOTH;
+ ok = (HAVE_POLYGONS) || ctx->Light.ShadeModel == GL_SMOOTH ||
+ ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION;
break;
case GL_QUAD_STRIP:
ok = VB->Elts ||