r300: Added a TODO comment for the R300_VAP_INPUT_ROUTE_[01]_0 values.

diff --git a/src/mesa/drivers/dri/r300/r300_ioctl.c b/src/mesa/drivers/dri/r300/r300_ioctl.c
index 76712b0b1980133a23916d98193d9433884036b3..1adbc2c854b23c49c98fa1f624d958ff34ecac4e 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_ioctl.c
+++ b/src/mesa/drivers/dri/r300/r300_ioctl.c
@@ -194,6 +194,14 @@ static void r300EmitClearState(GLcontext * ctx)
        if (!(r300->radeon.radeonScreen->chip_flags & RADEON_CHIPSET_TCL))
                has_tcl = 0;
 
+       /* FIXME: the values written to R300_VAP_INPUT_ROUTE_0_0 and
+        * R300_VAP_INPUT_ROUTE_0_1 are in fact known, however, the values are
+        * quite complex; see the functions in r300_emit.c.
+        *
+        * I believe it would be a good idea to extend the functions in
+        * r300_emit.c so that they can be used to setup the default values for
+        * these registers, as well as the actual values used for rendering.
+        */
        R300_STATECHANGE(r300, vir[0]);
        reg_start(R300_VAP_INPUT_ROUTE_0_0, 0);
        if (!has_tcl)