From 65faf023679988f93da82b4c7ebdc689f2094459 Mon Sep 17 00:00:00 2001 From: Michel Dänzer Date: Mon, 30 Apr 2007 18:28:24 +0200 Subject: r300: Don't crash in radeonUpdatePageFlipping when !radeon->glCtx->DrawBuffer. This feels like a kludge, maybe there's a better solution. --- src/mesa/drivers/dri/r300/radeon_lock.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/r300/radeon_lock.c b/src/mesa/drivers/dri/r300/radeon_lock.c index 84181e2e99..0d0d9ab7f0 100644 --- a/src/mesa/drivers/dri/r300/radeon_lock.c +++ b/src/mesa/drivers/dri/r300/radeon_lock.c @@ -60,7 +60,9 @@ void radeonUpdatePageFlipping(radeonContextPtr radeon) r300UpdateDrawBuffer(radeon->glCtx); } - use_back = (radeon->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT); + use_back = radeon->glCtx->DrawBuffer ? + (radeon->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == + BUFFER_BIT_BACK_LEFT) : 1; use_back ^= (radeon->sarea->pfCurrentPage == 1); if (use_back) { -- cgit v1.2.3