Without this we'd miss an update when doing a sequence like {COLOR0, COLOR1},
{COLOR0}, {COLOR0, COLOR1}.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Signed-off-by: Henri Verbeet <hverb...@gmail.com>
---
src/mesa/main/buffers.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index a75c9c2..88fe0b1 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -445,7 +445,10 @@ _mesa_drawbuffers(struct gl_context *ctx, GLuint n, const
GLenum *buffers,
fb->ColorDrawBuffer[buf] = GL_NONE;
buf++;
}
- fb->_NumColorDrawBuffers = count;
+ if (fb->_NumColorDrawBuffers != count) {
+ updated_drawbuffers(ctx);
+ fb->_NumColorDrawBuffers = count;
+ }
}
if (fb->Name == 0) {
--
1.7.2.5
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