Remove OpenGL ES support

Remove the following:
 - Relevant backend kernels
 - Relevant backend functions
 - Relevant backend validation tests
 - Relevant backend specific examples
 - Remove backend support from Graph API
 - Remove backend support from build system

Update documentation

Resolves: COMPMID-4149

Change-Id: Id0621d6ee35169754de458103907aaba4ef770c0
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5097
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

1 files changed, 0 insertions, 113 deletions

diff --git a/arm_compute/core/GLES_COMPUTE/IGCTensor.h b/arm_compute/core/GLES_COMPUTE/IGCTensor.h
deleted file mode 100644
index 080947d9e5..0000000000
--- a/arm_compute/core/GLES_COMPUTE/IGCTensor.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (c) 2017-2019 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_IGCTENSOR_H
-#define ARM_COMPUTE_IGCTENSOR_H
-
-#include "arm_compute/core/GLES_COMPUTE/OpenGLES.h"
-#include "arm_compute/core/ITensor.h"
-
-#include <cstdint>
-
-namespace arm_compute
-{
-/** Interface for GLES Compute tensor */
-class IGCTensor : public ITensor
-{
-public:
-    /** Default constructor. */
-    IGCTensor();
-
-    /** Prevent instances of this class from being copied (As this class contains pointers) */
-    IGCTensor(const IGCTensor &) = delete;
-
-    /** Prevent instances of this class from being copy assigned (As this class contains pointers) */
-    IGCTensor &operator=(const IGCTensor &) = delete;
-
-    /** Allow instances of this class to be moved */
-    IGCTensor(IGCTensor &&) = default;
-
-    /** Allow instances of this class to be moved */
-    IGCTensor &operator=(IGCTensor &&) = default;
-
-    /** Virtual destructor */
-    virtual ~IGCTensor() = default;
-
-    /** Map on an allocated buffer.
-     *
-     * @param[in] blocking (Optional) If true, then the mapping will be ready to use by the time
-     *                     this method returns, else it is the caller's responsibility
-     *                     to flush the queue and wait for the mapping operation to have completed before using the returned mapping pointer.
-     */
-    void map(bool blocking = true);
-    /** Unmap an allocated and mapped buffer.
-     */
-    void unmap();
-    /** Clear the contents of the tensor synchronously.
-     */
-    void clear();
-
-    // Inherited methods overridden:
-    uint8_t *buffer() const override;
-    /** Interface to be implemented by the child class to return the tensor's gles compute buffer id.
-      *
-      * @return A SSBO buffer id.
-     */
-    virtual GLuint gc_buffer() const = 0;
-
-    /** Flag indicating whether the tensor has been left aligned by a kernel and therefore needs shifting.
-     *
-     * @return True if the tensor is left aligned.
-     */
-    bool needs_shifting() const;
-    /** Set the flag indicating whether or not a tensor needs shifting.
-     *
-     * @param[in] needs_shifting Indicates if the tensor is left aligned or not.
-     *
-     */
-    void set_needs_shifting(bool needs_shifting);
-
-protected:
-    /** Method to be implemented by the child class to map the SSBO.
-     *
-     * @param[in] blocking If true, then the mapping will be ready to use by the time
-     *                     this method returns, else it is the caller's responsibility
-     *                     to flush the queue and wait for the mapping operation to have completed before using the returned mapping pointer.
-     */
-    virtual uint8_t *do_map(bool blocking) = 0;
-    /** Method to be implemented by the child class to unmap the SSBO.
-     *
-     * @note This method simply enqueues the unmap operation, it is the caller's responsibility to flush the queue and make sure the unmap is finished before
-     *       the memory is accessed by the device.
-     */
-    virtual void do_unmap() = 0;
-
-private:
-    uint8_t *_mapping;
-    bool     _needs_shifting;
-};
-
-/** Interface for GLES Compute image */
-using IGCImage = IGCTensor;
-}
-#endif /*ARM_COMPUTE_IGCTENSOR_H */