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-rw-r--r--src/mesa/swrast/s_clear.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_clear.c b/src/mesa/swrast/s_clear.c
index 75805f9605d..9e9b5311684 100644
--- a/src/mesa/swrast/s_clear.c
+++ b/src/mesa/swrast/s_clear.c
@@ -165,6 +165,14 @@ clear_color_buffers(struct gl_context *ctx)
for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {
struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[buf];
+
+ /* If this is an ES2 context or GL_ARB_ES2_compatibility is supported,
+ * the framebuffer can be complete with some attachments be missing. In
+ * this case the _ColorDrawBuffers pointer will be NULL.
+ */
+ if (rb == NULL)
+ continue;
+
if (ctx->Color.ColorMask[buf][0] == 0 ||
ctx->Color.ColorMask[buf][1] == 0 ||
ctx->Color.ColorMask[buf][2] == 0 ||