Revert "libcamera: software_isp: gbm: Add a GBM helper class for GPU surface access"

GBM is not used any more - remove the helper class.

This reverts commit c60b1ce819.

Signed-off-by: Robert Mader <robert.mader@collabora.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # sm8250/rb5, x1e/Dell Insprion14p
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

include/libcamera/internal/gbm.h

@@ -1,55 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Copyright (C) 2024, Linaro Ltd.
- *
- * Authors:
- * Bryan O'Donoghue <bryan.odonoghue@linaro.org>
- *
- * Helper class for managing GBM interactions
- */
-
-#pragma once
-
-#include <gbm.h>
-
-#include <libcamera/base/log.h>
-#include <libcamera/base/unique_fd.h>
-
-#include <libcamera/formats.h>
-
-namespace libcamera {
-
-LOG_DECLARE_CATEGORY(GBM)
-
-class GBM
-{
-public:
-	GBM();
-	~GBM();
-
-	int createDevice();
-
-	/**
-	 * \brief Retrieve the GBM device handle
-	 *
-	 * \return Pointer to the gbm_device structure, or nullptr if the device
-	 * has not been created
-	 */
-	struct gbm_device *device() const { return gbmDevice_; }
-
-	/**
-	 * \brief Retrieve the pixel format
-	 *
-	 * \return The PixelFormat used by this GBM instance (ARGB8888)
-	 */
-	PixelFormat format() const { return format_; }
-
-private:
-	LIBCAMERA_DISABLE_COPY_AND_MOVE(GBM)
-
-	UniqueFD fd_;
-	struct gbm_device *gbmDevice_ = nullptr;
-	PixelFormat format_;
-};
-
-} /* namespace libcamera */

include/libcamera/internal/meson.build

@@ -24,7 +24,6 @@ libcamera_internal_headers = files([
     'formats.h',
     'framebuffer.h',
     'egl.h',
-    'gbm.h',
     'global_configuration.h',
     'ipa_data_serializer.h',
     'ipa_manager.h',