Differential D5179 Diff 14351 plugins/platforms/drm/drm_buffer_gbm.h

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plugins/platforms/drm/drm_buffer_gbm.h

This file was copied from plugins/platforms/drm/drm_object_crtc.h.

1	/********************************************************************	1	/********************************************************************
2	KWin - the KDE window manager	2	KWin - the KDE window manager
3	This file is part of the KDE project.	3	This file is part of the KDE project.
4		4
5	Copyright (C) 2016 Roman Gilg <subdiff@gmail.com>	5	Copyright 2017 Roman Gilg <subdiff@gmail.com>
		6	Copyright 2015 Martin Gräßlin <mgraesslin@kde.org>
6		7
7	This program is free software; you can redistribute it and/or modify	8	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.	11	(at your option) any later version.
11		12
12	This program is distributed in the hope that it will be useful,	13	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	GNU General Public License for more details.
16		17
17	You should have received a copy of the GNU General Public License	18	You should have received a copy of the GNU General Public License
18	along with this program. If not, see <http://www.gnu.org/licenses/>.	19	along with this program. If not, see <http://www.gnu.org/licenses/>.
19	*********************************************************************/	20	*********************************************************************/
20	#ifndef KWIN_DRM_OBJECT_CRTC_H	21	#ifndef KWIN_DRM_BUFFER_GBM_H
21	#define KWIN_DRM_OBJECT_CRTC_H	22	#define KWIN_DRM_BUFFER_GBM_H
22		23
23	#include "drm_object.h"	24	#include "drm_buffer.h"
		25
		26	struct gbm_bo;
		27	struct gbm_surface;
24		28
25	namespace KWin	29	namespace KWin
26	{	30	{
27		31
28	class DrmBackend;	32	class DrmBackend;
29	class DrmBuffer;
30		33
31	class DrmCrtc : public DrmObject	34	class DrmSurfaceBuffer : public DrmBuffer
32	{	35	{
33	public:	36	public:
34	DrmCrtc(uint32_t crtc_id, int fd, int resIndex);	37	DrmSurfaceBuffer(DrmBackend backend, gbm_surface surface);
35		38	~DrmSurfaceBuffer();
36	virtual ~DrmCrtc();
37
38	bool init();
39
40	enum class PropertyIndex {
41	ModeId = 0,
42	Active,
43	Count
44	};
45
46	bool initProps();
47		39
48	int resIndex() const {	40	bool needsModeChange(DrmBuffer *b) const override {
49	return m_resIndex;	41	if (DrmSurfaceBuffer sb = dynamic_cast<DrmSurfaceBuffer>(b)) {
		42	return hasBo() != sb->hasBo();
		43	} else {
		44	return true;
50	}	45	}
51
52	DrmBuffer *current() {
53	return m_currentBuffer;
54	}
55	DrmBuffer *next() {
56	return m_nextBuffer;
57	}
58	void setNext(DrmBuffer *buffer) {
59	m_nextBuffer = buffer;
60	}	46	}
61		47
62	void flipBuffer();	48	bool hasBo() const {
63	bool blank();	49	return m_bo != nullptr;
		50	}
		51	void releaseGbm() override;
64		52
65	private:	53	private:
66	DrmBackend *m_backend;	54	gbm_surface *m_surface = nullptr;
67	int m_resIndex;	55	gbm_bo *m_bo = nullptr;
68
69	DrmBuffer *m_currentBuffer = nullptr;
70	DrmBuffer *m_nextBuffer = nullptr;
71	DrmBuffer *m_blackBuffer = nullptr;
72	};	56	};
73		57
74	}	58	}
75		59
76	#endif	60	#endif
77		61