make sure tex format is supported.

diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index b8055788229638a190db7a7c848d151ef639d7de..b76e3490de7aa16963f30fc762c5deec85aa5e5e 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -190,7 +190,8 @@ static void r300SetTexImages(r300ContextPtr rmesa,
        t->format &= ~(R200_TXFORMAT_FORMAT_MASK |
                            R200_TXFORMAT_ALPHA_IN_MAP);
 
-       if (VALID_FORMAT(baseImage->TexFormat->MesaFormat)) {
+       if (VALID_FORMAT(baseImage->TexFormat->MesaFormat) &&
+           tx_table[baseImage->TexFormat->MesaFormat].flag) {
                t->format =
                    tx_table[baseImage->TexFormat->MesaFormat].format;
 #if 1