From: Brian <brian.paul@tungstengraphics.com>
Date: Tue, 9 Oct 2007 20:12:26 +0000 (-0600)
Subject: Use linked fragment shader inputs (if present) to determine which outputs are needed.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=94490f63c8294efbce8822cf2be6da9be67c8789;p=mesa.git

Use linked fragment shader inputs (if present) to determine which outputs are needed.
---

diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index f923b8e1326..b28102b1b91 100644
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -118,10 +118,17 @@ static struct state_key *make_state_key( GLcontext *ctx )
 {
    TNLcontext *tnl = TNL_CONTEXT(ctx);
    struct vertex_buffer *VB = &tnl->vb;
-   const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
+   const struct gl_fragment_program *fp;
    struct state_key *key = CALLOC_STRUCT(state_key);
    GLuint i;
 
+   if (ctx->Shader.CurrentProgram &&
+       ctx->Shader.CurrentProgram->LinkStatus &&
+       ctx->Shader.CurrentProgram->FragmentProgram)
+      fp = ctx->Shader.CurrentProgram->FragmentProgram;
+   else
+      fp = ctx->FragmentProgram._Current;
+
    /* This now relies on texenvprogram.c being active:
     */
    assert(fp);