COMPMID-1028: Add GLES backend

Change-Id: If3172cdb6528dbc20262836174aedaef52c78bdb
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/126111
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

6 files changed, 239 insertions, 1 deletions

diff --git a/arm_compute/graph2/Types.h b/arm_compute/graph2/Types.h
index b619cf1673..2625657393 100644
--- a/arm_compute/graph2/Types.h
+++ b/arm_compute/graph2/Types.h
@@ -93,6 +93,7 @@ enum class Target
     UNSPECIFIED, /**< Unspecified Target */
     NEON,        /**< NEON capable target device */
     CL,          /**< OpenCL capable target device */
+    GC,          /**< GLES compute capable target device */
 };
 
 /** Supported Element-wise operations */
diff --git a/arm_compute/graph2/Utils.h b/arm_compute/graph2/Utils.h
index 750665a491..0295bcb9af 100644
--- a/arm_compute/graph2/Utils.h
+++ b/arm_compute/graph2/Utils.h
@@ -84,9 +84,11 @@ Target get_default_target();
 void force_target_to_graph(Graph &g, Target target);
 /** Creates a default @ref PassManager
  *
+ * @param[in] target Target to create the pass manager for
+ *
  * @return A PassManager with default mutating passes
  */
-PassManager create_default_pass_manager();
+PassManager create_default_pass_manager(Target target);
 /** Default setups the graph context if not done manually
  *
  * @param[in] ctx Graph Context
diff --git a/arm_compute/graph2/backends/GLES/GCDeviceBackend.h b/arm_compute/graph2/backends/GLES/GCDeviceBackend.h
new file mode 100644
index 0000000000..22ba91496b
--- /dev/null
+++ b/arm_compute/graph2/backends/GLES/GCDeviceBackend.h
@@ -0,0 +1,59 @@
+/*
+ * 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_GRAPH2_GCDEVICEBACKEND_H__
+#define __ARM_COMPUTE_GRAPH2_GCDEVICEBACKEND_H__
+
+#include "arm_compute/graph2/IDeviceBackend.h"
+
+#include "arm_compute/runtime/GLES_COMPUTE/GCBufferAllocator.h"
+
+namespace arm_compute
+{
+namespace graph2
+{
+namespace backends
+{
+/** GLES Compute device backend */
+class GCDeviceBackend final : public IDeviceBackend
+{
+public:
+    /** Default Constructor */
+    GCDeviceBackend();
+
+    // Inherited overridden methods
+    void initialize_backend() override;
+    void setup_backend_context(GraphContext &ctx) override;
+    std::unique_ptr<ITensorHandle> create_tensor(const Tensor &tensor) override;
+    std::unique_ptr<ITensorHandle> create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent) override;
+    std::unique_ptr<arm_compute::IFunction> configure_node(INode &node, GraphContext &ctx) override;
+    Status validate_node(INode &node) override;
+    std::shared_ptr<arm_compute::IMemoryManager> create_memory_manager(MemoryManagerAffinity affinity) override;
+
+private:
+    GCBufferAllocator _allocator; /**< GLES buffer affinity allocator */
+};
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
+#endif //__ARM_COMPUTE_GRAPH2_GCDEVICEBACKEND_H__
diff --git a/arm_compute/graph2/backends/GLES/GCFunctionFactory.h b/arm_compute/graph2/backends/GLES/GCFunctionFactory.h
new file mode 100644
index 0000000000..4f7b2f451a
--- /dev/null
+++ b/arm_compute/graph2/backends/GLES/GCFunctionFactory.h
@@ -0,0 +1,57 @@
+/*
+ * 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_GRAPH2_GCFUNCTIONFACTORY_H__
+#define __ARM_COMPUTE_GRAPH2_GCFUNCTIONFACTORY_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+namespace graph2
+{
+// Forward declarations
+class INode;
+class GraphContext;
+
+namespace backends
+{
+/** Factory for generating GLES compute backend functions **/
+class GCFunctionFactory final
+{
+public:
+    /** Create a backend execution function depending on the node type
+     *
+     * @param[in] node Node to create the backend function for
+     * @param[in] ctx  Context to use
+     *
+     * @return Backend function
+     */
+    static std::unique_ptr<arm_compute::IFunction> create(INode *node, GraphContext &ctx);
+};
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
+#endif //__ARM_COMPUTE_GRAPH2_GCFUNCTIONFACTORY_H__
diff --git a/arm_compute/graph2/backends/GLES/GCNodeValidator.h b/arm_compute/graph2/backends/GLES/GCNodeValidator.h
new file mode 100644
index 0000000000..16b225b282
--- /dev/null
+++ b/arm_compute/graph2/backends/GLES/GCNodeValidator.h
@@ -0,0 +1,52 @@
+/*
+ * 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_GRAPH2_GCNODEVALIDATOR_H__
+#define __ARM_COMPUTE_GRAPH2_GCNODEVALIDATOR_H__
+
+#include "arm_compute/core/Error.h"
+
+namespace arm_compute
+{
+namespace graph2
+{
+// Forward declarations
+class INode;
+
+namespace backends
+{
+class GCNodeValidator final
+{
+public:
+    /** Validate a node
+     *
+     * @param[in] node Node to validate
+     *
+     * @return An error status
+     */
+    static Status validate(INode *node);
+};
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
+#endif //__ARM_COMPUTE_GRAPH2_GCNODEVALIDATOR_H__
diff --git a/arm_compute/graph2/backends/GLES/GCTensorHandle.h b/arm_compute/graph2/backends/GLES/GCTensorHandle.h
new file mode 100644
index 0000000000..8ead236614
--- /dev/null
+++ b/arm_compute/graph2/backends/GLES/GCTensorHandle.h
@@ -0,0 +1,67 @@
+/*
+ * 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_GRAPH2_GCTENSORHANDLE_H__
+#define __ARM_COMPUTE_GRAPH2_GCTENSORHANDLE_H__
+
+#include "arm_compute/graph2/ITensorHandle.h"
+
+#include "arm_compute/runtime/GLES_COMPUTE/GCTensor.h"
+
+namespace arm_compute
+{
+namespace graph2
+{
+namespace backends
+{
+/** GLES compute tensor handle interface object **/
+class GCTensorHandle final : public ITensorHandle
+{
+public:
+    /** Default Constructor
+     *
+     * @param[in] info Tensor metadata
+     */
+    GCTensorHandle(const ITensorInfo &info);
+    /** Destructor: free the tensor's memory */
+    ~GCTensorHandle() = default;
+    /** Allow instances of this class to be move constructed */
+    GCTensorHandle(GCTensorHandle &&) = default;
+    /** Allow instances of this class to be moved */
+    GCTensorHandle &operator=(GCTensorHandle &&) = default;
+
+    // Inherited overridden methods
+    void                        allocate() override;
+    arm_compute::ITensor       &tensor() override;
+    const arm_compute::ITensor &tensor() const override;
+    void map(bool blocking) override;
+    void unmap() override;
+    bool is_subtensor() const override;
+
+private:
+    arm_compute::GCTensor _tensor; /**< Backend Tensor */
+};
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH2_GCTENSORHANDLE_H__ */