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Diffstat (limited to 'src/mesa/main/framebuffer.c')
-rw-r--r--src/mesa/main/framebuffer.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 3136a950e0..cd4f594aa2 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -647,7 +647,7 @@ update_color_draw_buffers(GLcontext *ctx, struct gl_framebuffer *fb)
const GLuint bufferBit = 1 << i;
if (bufferBit & bufferMask) {
struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer;
- if (rb) {
+ if (rb && rb->Width > 0 && rb->Height > 0) {
fb->_ColorDrawBuffers[output][count] = rb;
count++;
}
@@ -673,7 +673,10 @@ static void
update_color_read_buffer(GLcontext *ctx, struct gl_framebuffer *fb)
{
(void) ctx;
- if (fb->_ColorReadBufferIndex == -1 || fb->DeletePending) {
+ if (fb->_ColorReadBufferIndex == -1 ||
+ fb->DeletePending ||
+ fb->Width == 0 ||
+ fb->Height == 0) {
fb->_ColorReadBuffer = NULL; /* legal! */
}
else {