kwin/plugins/platforms/drm/egl_stream_backend.h
Vlad Zagorodniy 168ea98845 Rename ShellClient to XdgShellClient
Summary:
Rename ShellClient to XdgShellClient in order to reflect that it
represents only xdg-shell clients.

Test Plan: Compiles, tests still pass.

Reviewers: #kwin

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D23589
2019-09-23 17:28:56 +03:00

116 lines
3.8 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2019 NVIDIA Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_EGL_STREAM_BACKEND_H
#define KWIN_EGL_STREAM_BACKEND_H
#include "abstract_egl_backend.h"
#include <KWayland/Server/surface_interface.h>
#include <KWayland/Server/eglstream_controller_interface.h>
#include <wayland-server-core.h>
namespace KWin
{
class DrmBackend;
class DrmOutput;
class DrmBuffer;
class XdgShellClient;
/**
* @brief OpenGL Backend using Egl with an EGLDevice.
*/
class EglStreamBackend : public AbstractEglBackend
{
Q_OBJECT
public:
EglStreamBackend(DrmBackend *b);
~EglStreamBackend() override;
void screenGeometryChanged(const QSize &size) override;
SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *texture) override;
QRegion prepareRenderingFrame() override;
void endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) override;
void endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
bool usesOverlayWindow() const override;
bool perScreenRendering() const override;
QRegion prepareRenderingForScreen(int screenId) override;
void init() override;
protected:
void present() override;
void cleanupSurfaces() override;
private:
bool initializeEgl();
bool initBufferConfigs();
bool initRenderingContext();
struct StreamTexture
{
EGLStreamKHR stream;
GLuint texture;
};
StreamTexture *lookupStreamTexture(KWayland::Server::SurfaceInterface *surface);
void attachStreamConsumer(KWayland::Server::SurfaceInterface *surface,
void *eglStream,
wl_array *attribs);
struct Output
{
DrmOutput *output = nullptr;
DrmBuffer *buffer = nullptr;
EGLSurface eglSurface = EGL_NO_SURFACE;
EGLStreamKHR eglStream = EGL_NO_STREAM_KHR;
};
bool resetOutput(Output &output, DrmOutput *drmOutput);
bool makeContextCurrent(const Output &output);
void presentOnOutput(Output &output);
void cleanupOutput(const Output &output);
void createOutput(DrmOutput *output);
DrmBackend *m_backend;
QVector<Output> m_outputs;
KWayland::Server::EglStreamControllerInterface *m_eglStreamControllerInterface;
QHash<KWayland::Server::SurfaceInterface *, StreamTexture> m_streamTextures;
friend class EglStreamTexture;
};
/**
* @brief External texture bound to an EGLStreamKHR.
*/
class EglStreamTexture : public AbstractEglTexture
{
public:
~EglStreamTexture() override;
bool loadTexture(WindowPixmap *pixmap) override;
void updateTexture(WindowPixmap *pixmap) override;
private:
EglStreamTexture(SceneOpenGLTexture *texture, EglStreamBackend *backend);
bool acquireStreamFrame(EGLStreamKHR stream);
void createFbo();
void copyExternalTexture(GLuint tex);
bool attachBuffer(KWayland::Server::BufferInterface *buffer);
EglStreamBackend *m_backend;
GLuint m_fbo, m_rbo;
GLenum m_format;
friend class EglStreamBackend;
};
} // namespace
#endif