COMPMID-601: Add GraphContext

GraphContext hold all the information about the hints that need to be
passed in the nodes. As these might expand, it serves as a centralized
class for such information.

Change-Id: I0b5527630fb97cc5fa500db0bac8307ff2ea36e6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/90300
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/arm_compute/graph/GraphContext.h b/arm_compute/graph/GraphContext.h
new file mode 100644
index 0000000000..98bc8c02f8
--- /dev/null
+++ b/arm_compute/graph/GraphContext.h
@@ -0,0 +1,88 @@
+/*
+ * 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_GRAPH_CONTEXT_H__
+#define __ARM_COMPUTE_GRAPH_CONTEXT_H__
+
+#include "arm_compute/graph/Types.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+/** Hints that can be passed to the graph to expose parameterization */
+class GraphHints
+{
+public:
+    /** Default Constructor */
+    GraphHints(TargetHint            target_hint      = TargetHint::DONT_CARE,
+               ConvolutionMethodHint conv_method_hint = ConvolutionMethodHint::GEMM);
+    /** Sets target execution hint
+     *
+     * @param target_hint Target execution hint
+     */
+    void set_target_hint(TargetHint target_hint);
+    /** Sets convolution method to use
+     *
+     * @param convolution_method Convolution method to use
+     */
+    void set_convolution_method_hint(ConvolutionMethodHint convolution_method);
+    /** Returns target execution hint
+     *
+     * @return target execution hint
+     */
+    TargetHint target_hint() const;
+    /** Returns convolution method hint
+     *
+     * @return convolution method hint
+     */
+    ConvolutionMethodHint convolution_method_hint() const;
+
+private:
+    TargetHint            _target_hint;             /**< Target execution hint */
+    ConvolutionMethodHint _convolution_method_hint; /**< Convolution method hint */
+};
+
+/** Graph context */
+class GraphContext
+{
+public:
+    /** Default Constuctor */
+    GraphContext();
+    /** Returns graph hints
+     *
+     * @return Graph hints
+     */
+    GraphHints &hints();
+    /** Returns graph hints
+     *
+     * @return Graph hints
+     */
+    const GraphHints &hints() const;
+
+private:
+    GraphHints _hints; /**< Graph hints */
+};
+} // namespace graph
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH_CONTEXT_H__ */