mesa: choose GLSL vertex shader over ARB/internal vertex program in get_fp_input_mask()

This is a work-around the for the fact that we do fragment shader state
validation before vertex shader validation (see comments in state.c) so in
get_fp_input_mask() we can't rely on ctx->VertexProgram._Current being up to
date yet.

This fixes a glean glsl1 test failure.

1 files changed, 13 insertions, 1 deletions

diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 865ef8f9f8..2f90a34220 100644
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -270,7 +270,19 @@ static GLbitfield get_fp_input_mask( GLcontext *ctx )
    }
    else {
       /* calculate from vp->outputs */
-      GLbitfield vp_outputs = ctx->VertexProgram._Current->Base.OutputsWritten;
+      struct gl_vertex_program *vprog;
+      GLbitfield vp_outputs;
+
+      /* Choose GLSL vertex shader over ARB vertex program.  Need this
+       * since vertex shader state validation comes after fragment state
+       * validation (see additional comments in state.c).
+       */
+      if (vertexShader)
+         vprog = ctx->Shader.CurrentProgram->VertexProgram;
+      else
+         vprog = ctx->VertexProgram._Current;
+
+      vp_outputs = vprog->Base.OutputsWritten;
 
       /* These get generated in the setup routine regardless of the
        * vertex program: