Add support for GL_EXT_stencil_wrap by guessing that the skip of two values in

the register header was meaningful.  It turns out those were the proper values
for the plain INCR/DECR ops, while what we were using as INCR/DECR were the
_WRAP versions.  Tested with stencil_wrap (didn't expose normal/_WRAP swapping)
and stencilwrap (exposed it nicely) tests.  Props to idr for poking me about
adding this.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/sis/sis_context.c b/src/mesa/drivers/dri/sis/sis_context.c
index 948f15a941..22ced964af 100644
--- a/src/mesa/drivers/dri/sis/sis_context.c
+++ b/src/mesa/drivers/dri/sis/sis_context.c
@@ -74,6 +74,7 @@ struct dri_extension card_extensions[] =
     { "GL_ARB_multisample",                GL_ARB_multisample_functions },
     { "GL_ARB_multitexture",               NULL },
     { "GL_EXT_texture_lod_bias",           NULL },
+    { "GL_EXT_stencil_wrap",               NULL },
     { "GL_NV_blend_square",                NULL },
     { NULL,                                NULL }
 };