wined3d: Print a warning when the stage isn't mapped to a valid texture unit in tex_coordindex().

[Henri Verbeet]

---
 dlls/wined3d/state.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/dlls/wined3d/state.c b/dlls/wined3d/state.c
index 720a548..257feb2 100644
--- a/dlls/wined3d/state.c
+++ b/dlls/wined3d/state.c
@@ -3103,6 +3103,7 @@ static void tex_coordindex(DWORD state, IWineD3DStateBlockImpl *stateblock, Wine
     }
 
     if(mapped_stage >= GL_LIMITS(fragment_samplers)) {
+        WARN("stage %u not mapped to a valid texture unit (%u)\n", stage, mapped_stage);
         return;
     }
     GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + mapped_stage));
-- 
1.6.0.6



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