From 314d70ff17c785999aaf5b4953fc019be893e630 Mon Sep 17 00:00:00 2001
From: Comma Device <device@comma.ai>
Date: Tue, 19 Jul 2022 19:17:47 -0700
Subject: [PATCH] zero out the buffer

---
 openpilot/compile.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/openpilot/compile.py b/openpilot/compile.py
index ea1503ae8a..b5052ff2d6 100644
--- a/openpilot/compile.py
+++ b/openpilot/compile.py
@@ -232,6 +232,11 @@ def compile(input, output_fn):
             row_pitch = (a.shape[0]*4*2 + 63)//64 * 64
             size = row_pitch * a.shape[1]
             buf = CLBuffer(size)
+
+            # zero out the buffer
+            zeros = np.zeros(size, dtype=np.uint8)
+            CL.enqueue_copy(buf.cl, zeros, is_blocking=True)
+
             CLProgram("from_image_strided", """
               __kernel void from_image_strided(read_only image2d_t in, __global float4 *out, int row_pitch) {
                 const sampler_t smp = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP | CLK_FILTER_NEAREST;