Am 19.08.2014 15:53, schrieb Brian Paul: > This is a follow-on fix to commit 39b40ad144. Fixes a crash if the > user calls glDrawBuffers(0, NULL). > > Bugzilla: > https://urldefense.proofpoint.com/v1/url?u=https://bugs.freedesktop.org/show_bug.cgi?id%3D82814&k=oIvRg1%2BdGAgOoM1BIlLLqw%3D%3D%0A&r=F4msKE2WxRzA%2BwN%2B25muztFm5TSPwE8HKJfWfR2NgfY%3D%0A&m=ynH9vTD3QVde873TpUm4VrqP7bv1FGR6jkT0KOeHTvs%3D%0A&s=4401726373238b8e1eed0469d9df7a8242cc58b23ce6f3ca8d4b51368bdf3d52 > Cc: "10.2" <mesa-sta...@lists.freedesktop.org> > --- > src/mesa/main/buffers.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c > index 140cf6e..8a0852c 100644 > --- a/src/mesa/main/buffers.c > +++ b/src/mesa/main/buffers.c > @@ -498,7 +498,7 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const > GLenum *buffers, > * (ex: glDrawBuffer(GL_FRONT_AND_BACK)). > * Otherwise, destMask[x] can only have one bit set. > */ > - if (_mesa_bitcount(destMask[0]) > 1) { > + if (n > 0 && _mesa_bitcount(destMask[0]) > 1) { > GLuint count = 0, destMask0 = destMask[0]; > while (destMask0) { > GLint bufIndex = ffs(destMask0) - 1; >
Reviewed-by: Roland Scheidegger <srol...@vmware.com> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
