Differential D10750 Diff 61915 platformsupport/scenes/opengl/linux_dmabuf.h

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platformsupport/scenes/opengl/linux_dmabuf.h

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		1		/********************************************************************
		2		KWin - the KDE window manager
		3		This file is part of the KDE project.
		4
		5		Copyright © 2019 Roman Gilg <subdiff@gmail.com>
		6		Copyright © 2018 Fredrik Höglund <fredrik@kde.org>
		7
		8		This program is free software; you can redistribute it and/or modify
		9		it under the terms of the GNU General Public License as published by
		10		the Free Software Foundation; either version 2 of the License, or
		11		(at your option) any later version.
		12
		13		This program is distributed in the hope that it will be useful,
		14		but WITHOUT ANY WARRANTY; without even the implied warranty of
		15		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		16		GNU General Public License for more details.
		17
		18		You should have received a copy of the GNU General Public License
		19		along with this program. If not, see <http://www.gnu.org/licenses/>.
		20		*********************************************************************/
		21		#pragma once
		22
		23		#include "abstract_egl_backend.h"
		24
		25		#include <KWayland/Server/linuxdmabuf_v1_interface.h>
		26
		27		#include <QVector>
		28
		29		namespace KWin
		30		{
		31		class LinuxDmabuf;
		32
		33		class DmabufBuffer : public KWayland::Server::LinuxDmabufUnstableV1Buffer
		34		{
		35		public:
		36		using Plane = KWayland::Server::LinuxDmabufUnstableV1Interface::Plane;
		37		using Flags = KWayland::Server::LinuxDmabufUnstableV1Interface::Flags;
		38
		39		enum class ImportType {
		40		Direct,
		41		Conversion
		42		};
		43
		44		DmabufBuffer(EGLImage image,
		45		const QVector<Plane> &planes,
		46		uint32_t format,
		47		const QSize &size,
		48		Flags flags,
		49		LinuxDmabuf *interfaceImpl);
		50
		51		DmabufBuffer(const QVector<Plane> &planes,
		52		uint32_t format,
		53		const QSize &size,
		54		Flags flags,
		55		LinuxDmabuf *interfaceImpl);
		56
		57		~DmabufBuffer() override;
		58
		59		void addImage(EGLImage image);
		60		void removeImages();
		61
		62		QVector<EGLImage> images() const { return m_images; }
		63		Flags flags() const { return m_flags; }
		64		const QVector<Plane> &planes() const { return m_planes; }
		65
		66		private:
		67		QVector<EGLImage> m_images;
		68		QVector<Plane> m_planes;
		69		Flags m_flags;
		70		LinuxDmabuf *m_interfaceImpl;
		71		ImportType m_importType;
		72		};
		73
		74		class LinuxDmabuf : public KWayland::Server::LinuxDmabufUnstableV1Interface::Impl
		75		{
		76		public:
		77		using Plane = KWayland::Server::LinuxDmabufUnstableV1Interface::Plane;
		78		using Flags = KWayland::Server::LinuxDmabufUnstableV1Interface::Flags;
		79
		80		static LinuxDmabuf* factory(AbstractEglBackend *backend);
		81
		82		explicit LinuxDmabuf(AbstractEglBackend *backend);
		83		~LinuxDmabuf();
		84
		85		KWayland::Server::LinuxDmabufUnstableV1Buffer *importBuffer(const QVector<Plane> &planes,
		86		uint32_t format,
		87		const QSize &size,
		88		Flags flags) override;
		89
		90		private:
		91		EGLImage createImage(const QVector<Plane> &planes,
		92		uint32_t format,
		93		const QSize &size);
		94
		95
		96		KWayland::Server::LinuxDmabufUnstableV1Buffer *yuvImport(const QVector<Plane> &planes,
		97		uint32_t format,
		98		const QSize &size,
		99		Flags flags);
		100
		101		void removeBuffer(DmabufBuffer *buffer);
		102		void setSupportedFormatsAndModifiers();
		103
		104		KWayland::Server::LinuxDmabufUnstableV1Interface *m_interface;
		105		QSet<DmabufBuffer*> m_buffers;
		106		AbstractEglBackend *m_backend;
		107
		108		friend class DmabufBuffer;
		109		};
		110
		111		}