diff options
| -rw-r--r-- | src/mesa/main/buffers.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c index b13a7af65a6..6b4fac9f58d 100644 --- a/src/mesa/main/buffers.c +++ b/src/mesa/main/buffers.c @@ -494,10 +494,11 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const GLenum *buffers, } /* - * If n==1, destMask[0] may have up to four bits set. + * destMask[0] may have up to four bits set + * (ex: glDrawBuffer(GL_FRONT_AND_BACK)). * Otherwise, destMask[x] can only have one bit set. */ - if (n == 1) { + if (_mesa_bitcount(destMask[0]) > 1) { GLuint count = 0, destMask0 = destMask[0]; while (destMask0) { GLint bufIndex = ffs(destMask0) - 1; |