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authorAlex Deucher <[email protected]>2009-12-16 16:18:22 -0500
committerAlex Deucher <[email protected]>2009-12-16 16:18:22 -0500
commit20ee275974a58cd221031d522ad58a9548af2a31 (patch)
tree0985215185cfe2df35edfac083ce0a470966b208 /src
parentaeea8a07b8a3d126f62395c7f7de4fcab741846a (diff)
r600: Invert front face winding when rendering to FBO
fixes fdo bug 25679 Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/r600/r700_state.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index 244a016e07e..e763d2803c7 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -655,6 +655,10 @@ static void r700UpdateCulling(GLcontext * ctx)
CLEARbit(r700->PA_SU_SC_MODE_CNTL.u32All, FACE_bit); /* default: ccw */
break;
}
+
+ /* Winding is inverted when rendering to FBO */
+ if (ctx->DrawBuffer && ctx->DrawBuffer->Name)
+ r700->PA_SU_SC_MODE_CNTL.u32All ^= FACE_bit;
}
static void r700UpdateLineStipple(GLcontext * ctx)