COMPMID-661: directconv-uint8 (#20)

Change-Id: I84f7a1ce3658be0d3c91e65096467258af48f0b6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/94341
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/arm_compute/core/utils/quantization/AsymmHelpers.h b/arm_compute/core/utils/quantization/AsymmHelpers.h
new file mode 100644
index 0000000000..d2cd76e256
--- /dev/null
+++ b/arm_compute/core/utils/quantization/AsymmHelpers.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_QUANTIZATION_ASYMM_HELPERS_H__
+#define __ARM_COMPUTE_QUANTIZATION_ASYMM_HELPERS_H__
+
+#include "arm_compute/core/Error.h"
+
+namespace arm_compute
+{
+namespace quantization
+{
+/** Calculate quantized representation of multiplier with value less than one.
+ *
+ * @param[in]  multiplier       Real multiplier.
+ * @param[out] quant_multiplier Integer multiplier.
+ * @param[out] right_shift      Right bit shift.
+ */
+arm_compute::Error calculate_quantized_multiplier_less_than_one(double multiplier, int *quant_multiplier, int *right_shift);
+} // namespace quantization
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_IO_FILE_HANDLER_H__ */