When in GL_FEEDBACK mode, make sure we emit color and texcoord registers.

diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index 2c0883d0b094925b2934238c1ad94ad8de1a286d..cbffed5155d67b2a578b2b501057d62419a6a786 100644 (file)
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -135,6 +135,11 @@ static struct state_key *make_state_key( GLcontext *ctx )
 
    key->fragprog_inputs_read = fp->Base.InputsRead;
 
+   if (ctx->RenderMode == GL_FEEDBACK) {
+      /* make sure the vertprog emits color and tex0 */
+      key->fragprog_inputs_read |= (FRAG_BIT_COL0 | FRAG_BIT_TEX0);
+   }
+
    key->separate_specular = (ctx->Light.Model.ColorControl ==
                             GL_SEPARATE_SPECULAR_COLOR);