diff options
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nv10_state.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nv10_state.c b/src/mesa/drivers/dri/nouveau/nv10_state.c index 09fc07556d..e204eba6ba 100644 --- a/src/mesa/drivers/dri/nouveau/nv10_state.c +++ b/src/mesa/drivers/dri/nouveau/nv10_state.c @@ -41,13 +41,18 @@ static void nv10ViewportScale(nouveauContextPtr nmesa) GLuint h = ctx->Viewport.Height; GLfloat max_depth = (ctx->Viewport.Near + ctx->Viewport.Far) * 0.5; - switch (ctx->DrawBuffer->_DepthBuffer->DepthBits) { - case 16: - max_depth *= 32767.0; - break; - case 24: - max_depth *= 16777215.0; - break; + if (ctx->DrawBuffer) { + switch (ctx->DrawBuffer->_DepthBuffer->DepthBits) { + case 16: + max_depth *= 32767.0; + break; + case 24: + max_depth *= 16777215.0; + break; + } + } else { + /* Default to 24 bits range */ + max_depth *= 16777215.0; } BEGIN_RING_CACHE(NvSub3D, NV10_TCL_PRIMITIVE_3D_VIEWPORT_SCALE_X, 4); |