c60b1ce819
A helper class to interact with GBM. This will allow us to specify the internal storage format of the GPU when making a texture for the Debayer vertex/fragment shaders and thus ensure we receive an uncompressed and untiled output buffer. Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Robert Mader <robert.mader@collabora.com> Tested-by: Robert Mader <robert.mader@collabora.com> Tested-by: Hans de Goede <johannes.goede@oss.qualcomm.com> # ThinkPad T14s gen 6 (arm64) ov02c10 + X1c gen 12 ov08x40 Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
56 lines
988 B
C++
56 lines
988 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2024, Linaro Ltd.
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*
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* Authors:
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* Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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*
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* Helper class for managing GBM interactions
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*/
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#pragma once
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#include <gbm.h>
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#include <libcamera/base/log.h>
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#include <libcamera/base/unique_fd.h>
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#include <libcamera/formats.h>
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namespace libcamera {
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LOG_DECLARE_CATEGORY(GBM)
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class GBM
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{
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public:
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GBM();
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~GBM();
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int createDevice();
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/**
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* \brief Retrieve the GBM device handle
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*
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* \return Pointer to the gbm_device structure, or nullptr if the device
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* has not been created
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*/
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struct gbm_device *device() const { return gbmDevice_; }
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/**
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* \brief Retrieve the pixel format
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*
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* \return The PixelFormat used by this GBM instance (ARGB8888)
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*/
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PixelFormat format() const { return format_; }
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private:
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LIBCAMERA_DISABLE_COPY_AND_MOVE(GBM)
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UniqueFD fd_;
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struct gbm_device *gbmDevice_ = nullptr;
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PixelFormat format_;
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};
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} /* namespace libcamera */
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