Differential D18570 Diff 50516 plugins/platforms/drm/egl_stream_backend.h

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plugins/platforms/drm/egl_stream_backend.h

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1​/********************************************************************
2​ KWin - the KDE window manager
3​ This file is part of the KDE project.
4​
5​Copyright (C) 2019 NVIDIA Inc.
6​
7​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​the Free Software Foundation; either version 2 of the License, or
10​(at your option) any later version.
11​
12​This program is distributed in the hope that it will be useful,
13​but WITHOUT ANY WARRANTY; without even the implied warranty of
14​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15​GNU General Public License for more details.
16​
17​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​*********************************************************************/
20​#ifndef KWIN_EGL_STREAM_BACKEND_H
21​#define KWIN_EGL_STREAM_BACKEND_H
22​#include "abstract_egl_backend.h"
23​#include <KWayland/Server/surface_interface.h>
24​
25​namespace KWin
26​{
27​
28​class DrmBackend;
29​class DrmOutput;
30​class DrmBuffer;
31​class ShellClient;
32​
33​/**
34​ * @brief OpenGL Backend using Egl with an EGLDevice.
35​ **/
36​class EglStreamBackend : public AbstractEglBackend
37​{
38​ Q_OBJECT
39​public:
40​ EglStreamBackend(DrmBackend *b);
41​ virtual ~EglStreamBackend();
42​ void screenGeometryChanged(const QSize &size) override;
43​ SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *texture) override;
44​ QRegion prepareRenderingFrame() override;
45​ void endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) override;
46​ void endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
47​ bool usesOverlayWindow() const override;
48​ bool perScreenRendering() const override;
49​ QRegion prepareRenderingForScreen(int screenId) override;
50​ void init() override;
51​
52​protected:
53​ void present() override;
54​ void cleanupSurfaces() override;
55​
56​private:
57​ bool initializeEgl();
58​ bool initBufferConfigs();
59​ bool initRenderingContext();
60​ struct Output {
61​ DrmOutput *output = nullptr;
62​ DrmBuffer *buffer = nullptr;
63​ EGLSurface eglSurface = EGL_NO_SURFACE;
64​ EGLStreamKHR eglStream = EGL_NO_STREAM_KHR;
65​ };
66​ bool resetOutput(Output &output, DrmOutput *drmOutput);
67​ bool makeContextCurrent(const Output &output);
68​ void presentOnOutput(Output &output);
69​ void cleanupOutput(const Output &output);
70​ void createOutput(DrmOutput *output);
71​ DrmBackend *m_backend;
72​ QVector<Output> m_outputs;
73​ friend class EglStreamTexture;
74​};
75​
76​/**
77​ * @brief External texture bound to an EGLStreamKHR.
78​ **/
79​class EglStreamTexture : public AbstractEglTexture
80​{
81​public:
82​ virtual ~EglStreamTexture();
83​ bool loadTexture(WindowPixmap *pixmap) override;
84​ void updateTexture(WindowPixmap *pixmap) override;
85​
86​private:
87​ EglStreamTexture(SceneOpenGLTexture *texture, EglStreamBackend *backend);
88​ bool acquireStreamFrame(EGLStreamKHR stream);
romanggUnsubmitted
Done

Instead of taking the wl_resource pointer as key, use the KWayland::Server::SurfaceInterface pointer.

romangg: Instead of taking the wl_resource pointer as key, use the KWayland::Server::SurfaceInterface…
89​ void createFbo();
90​ void copyExternalTexture(GLuint tex);
91​ EglStreamBackend *m_backend;
92​ GLuint m_fbo, m_rbo;
93​ GLenum m_format;
94​ friend class EglStreamBackend;
95​};
96​
97​} // namespace
98​
99​#endif