COMPMID-1718: Extend DepthConvert to support Cast

Change-Id: I6ee2c0b670727fc808fa636c53ddfaec3a0036c9

3 files changed, 83 insertions, 12 deletions

diff --git a/arm_compute/runtime/CL/CLFunctions.h b/arm_compute/runtime/CL/CLFunctions.h
index 9d4aa5b6a2..2a8294f28b 100644
--- a/arm_compute/runtime/CL/CLFunctions.h
+++ b/arm_compute/runtime/CL/CLFunctions.h
@@ -40,6 +40,7 @@
 #include "arm_compute/runtime/CL/functions/CLBoundingBoxTransform.h"
 #include "arm_compute/runtime/CL/functions/CLBox3x3.h"
 #include "arm_compute/runtime/CL/functions/CLCannyEdge.h"
+#include "arm_compute/runtime/CL/functions/CLCast.h"
 #include "arm_compute/runtime/CL/functions/CLChannelCombine.h"
 #include "arm_compute/runtime/CL/functions/CLChannelExtract.h"
 #include "arm_compute/runtime/CL/functions/CLChannelShuffleLayer.h"
diff --git a/arm_compute/runtime/CL/functions/CLCast.h b/arm_compute/runtime/CL/functions/CLCast.h
new file mode 100644
index 0000000000..ca50cf1691
--- /dev/null
+++ b/arm_compute/runtime/CL/functions/CLCast.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2018 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_CLCAST_H__
+#define __ARM_COMPUTE_CLCAST_H__
+
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/CL/ICLSimpleFunction.h"
+
+#include <cstdint>
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** Basic function to run @ref CLDepthConvertLayerKernel. */
+class CLCast : public ICLSimpleFunction
+{
+public:
+    /** Initialize the function's source, destination
+     *
+     * Input data type must be different than output data type.
+     *
+     * Valid conversions Input -> Output :
+     *
+     *   - U8  -> S8, U16, S16, U32, S32, F16, F32
+     *   - U16 -> U8, S8, S16, U32, S32, F16, F32
+     *   - S16 -> U8, S8, U16, U32, S32, F16, F32
+     *   - U32 -> U8, S8, U16, S16, S32, F16, F32
+     *   - S32 -> U8, S8, U16, S16, U32, F16, F32
+     *   - F16 -> U8, S8, U16, S16, U32, F32
+     *   - F32 -> U8, S8, U16, S16, U32, F16
+     *
+     * @param[in]  input  The input tensor to convert. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[out] output The output tensor. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in]  policy Conversion policy.
+     */
+    void configure(const ICLTensor *input, ICLTensor *output, ConvertPolicy policy);
+    /** Static function to check if given info will lead to a valid configuration of @ref CLCast
+     *
+     * @param[in] input  Source tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in] output Destination tensor info. Data type supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in] policy Conversion policy.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, ConvertPolicy policy);
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_CLCAST_H__*/
diff --git a/arm_compute/runtime/CL/functions/CLDepthConvertLayer.h b/arm_compute/runtime/CL/functions/CLDepthConvertLayer.h
index 40ae907805..a1985562da 100644
--- a/arm_compute/runtime/CL/functions/CLDepthConvertLayer.h
+++ b/arm_compute/runtime/CL/functions/CLDepthConvertLayer.h
@@ -43,24 +43,24 @@ public:
      *
      * Valid conversions Input -> Output :
      *
-     *   - U8 -> U16, S16, U32, S32
-     *   - U16 -> U8, U32, S32
-     *   - S16 -> U8, U32, S32
-     *   - U32 -> U8, U16, S16
-     *   - S32 -> U8, U16, S16
-     *   - F16 -> F32
-     *   - F32 -> F16
+     *   - U8  -> S8, U16, S16, U32, S32, F16, F32
+     *   - U16 -> U8, S8, S16, U32, S32, F16, F32
+     *   - S16 -> U8, S8, U16, U32, S32, F16, F32
+     *   - U32 -> U8, S8, U16, S16, S32, F16, F32
+     *   - S32 -> U8, S8, U16, S16, U32, F16, F32
+     *   - F16 -> U8, S8, U16, S16, U32, F32
+     *   - F32 -> U8, S8, U16, S16, U32, F16
      *
-     * @param[in]  input  The input tensor to convert. Data types supported: U8/U16/S16/U32/S32/F16/F32.
-     * @param[out] output The output tensor. Data types supported: U8/U16/S16/U32/S32/F16/F32.
+     * @param[in]  input  The input tensor to convert. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[out] output The output tensor. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
      * @param[in]  policy Conversion policy.
      * @param[in]  shift  Value for down/up conversions. Must be 0 <= shift < 8.
      */
     void configure(const ICLTensor *input, ICLTensor *output, ConvertPolicy policy, uint32_t shift);
     /** Static function to check if given info will lead to a valid configuration of @ref CLDepthConvertLayer
      *
-     * @param[in] input  Source tensor info. Data types supported: U8/U16/S16/U32/S32/F16/F32.
-     * @param[in] output Destination tensor info. Data type supported: U8/U16/S16/U32/S32/F16/F32.
+     * @param[in] input  Source tensor info. Data types supported: U8/S8/U16/S16/U32/S32/F16/F32.
+     * @param[in] output Destination tensor info. Data type supported: U8/S8/U16/S16/U32/S32/F16/F32.
      * @param[in] policy Conversion policy.
      * @param[in] shift  Value for down/up conversions. Must be 0 <= shift < 8.
      *
@@ -68,5 +68,5 @@ public:
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output, ConvertPolicy policy, uint32_t shift);
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_CLDEPTHCONVERT_H__*/