From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 22 Feb 2010 09:53:36 +0000 (+0000)
Subject: intel: assert that we do not overflow the batch buffer.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=15904c057beec3029a8ed2035d7ba50f9414943d;p=mesa.git

intel: assert that we do not overflow the batch buffer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---

diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.c b/src/mesa/drivers/dri/intel/intel_batchbuffer.c
index 9261f2ffd8b..4c99dcde23f 100644
--- a/src/mesa/drivers/dri/intel/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.c
@@ -158,9 +158,10 @@ _intel_batchbuffer_flush(struct intel_batchbuffer *batch, const char *file,
    }
 
    /* Mark the end of the buffer. */
-   *(GLuint *) (batch->ptr) = MI_BATCH_BUFFER_END; /* noop */
+   *(GLuint *) (batch->ptr) = MI_BATCH_BUFFER_END;
    batch->ptr += 4;
    used = batch->ptr - batch->map;
+   assert (used <= batch->buf->size);
 
    /* Workaround for recursive batchbuffer flushing: If the window is
     * moved, we can get into a case where we try to flush during a