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Diffstat (limited to 'src/hardwareintegration/compositor/linux-dmabuf-unstable-v1/linuxdmabuf.h')
| -rw-r--r-- | src/hardwareintegration/compositor/linux-dmabuf-unstable-v1/linuxdmabuf.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/hardwareintegration/compositor/linux-dmabuf-unstable-v1/linuxdmabuf.h b/src/hardwareintegration/compositor/linux-dmabuf-unstable-v1/linuxdmabuf.h new file mode 100644 index 000000000..2abc2ce6b --- /dev/null +++ b/src/hardwareintegration/compositor/linux-dmabuf-unstable-v1/linuxdmabuf.h @@ -0,0 +1,162 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef LINUXDMABUF_H +#define LINUXDMABUF_H + +#include "qwayland-server-linux-dmabuf-unstable-v1.h" + +#include <QtWaylandCompositor/private/qwayland-server-wayland.h> +#include <QtWaylandCompositor/private/qwlclientbufferintegration_p.h> + +#include <QtCore/QObject> +#include <QtCore/QHash> +#include <QtCore/QSize> +#include <QtCore/QTextStream> +#include <QtGui/QOpenGLTexture> + +#include <EGL/egl.h> +#include <EGL/eglext.h> + +// compatibility with libdrm <= 2.4.74 +#ifndef DRM_FORMAT_RESERVED +#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1) +#endif +#ifndef DRM_FORMAT_MOD_VENDOR_NONE +#define DRM_FORMAT_MOD_VENDOR_NONE 0 +#endif +#ifndef DRM_FORMAT_MOD_LINEAR +#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0) +#endif +#ifndef DRM_FORMAT_MOD_INVALID +#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE, DRM_FORMAT_RESERVED) +#endif + +QT_BEGIN_NAMESPACE + +class QWaylandCompositor; +class QWaylandResource; +class LinuxDmabufParams; +class LinuxDmabufClientBufferIntegration; + +struct Plane { + int fd = -1; + uint32_t offset = 0; + uint32_t stride = 0; + uint64_t modifiers = 0; +}; + +class LinuxDmabuf : public QtWaylandServer::zwp_linux_dmabuf_v1 +{ +public: + explicit LinuxDmabuf(wl_display *display, LinuxDmabufClientBufferIntegration *clientBufferIntegration); + + void setSupportedModifiers(const QHash<uint32_t, QVector<uint64_t>> &modifiers); + +protected: + void zwp_linux_dmabuf_v1_bind_resource(Resource *resource) override; + void zwp_linux_dmabuf_v1_create_params(Resource *resource, uint32_t params_id) override; + +private: + QHash<uint32_t, QVector<uint64_t>> m_modifiers; // key=DRM format, value=supported DRM modifiers for format + LinuxDmabufClientBufferIntegration *m_clientBufferIntegration; +}; + +class LinuxDmabufParams : public QtWaylandServer::zwp_linux_buffer_params_v1 +{ +public: + explicit LinuxDmabufParams(LinuxDmabufClientBufferIntegration *clientBufferIntegration, wl_resource *resource); + ~LinuxDmabufParams() override; + +private: + bool handleCreateParams(Resource *resource, int width, int height, uint format, uint flags); + uint m_drmFormat = 0; + uint m_flags = 0; + QSize m_size; + bool m_used = false; + QMap<uint, Plane> m_planes; + LinuxDmabufClientBufferIntegration *m_clientBufferIntegration; + +protected: + void zwp_linux_buffer_params_v1_destroy(Resource *resource) override; + void zwp_linux_buffer_params_v1_add(Resource *resource, int32_t fd, uint32_t plane_idx, uint32_t offset, uint32_t stride, uint32_t modifier_hi, uint32_t modifier_lo) override; + void zwp_linux_buffer_params_v1_create(Resource *resource, int32_t width, int32_t height, uint32_t format, uint32_t flags) override; + void zwp_linux_buffer_params_v1_create_immed(Resource *resource, uint32_t buffer_id, int32_t width, int32_t height, uint32_t format, uint32_t flags) override; + void zwp_linux_buffer_params_v1_destroy_resource(Resource *resource) override; + + friend class LinuxDmabufClientBufferIntegrationPrivate; +}; + +class LinuxDmabufWlBuffer : public QtWaylandServer::wl_buffer +{ +public: + explicit LinuxDmabufWlBuffer(::wl_client *client, LinuxDmabufClientBufferIntegration *clientBufferIntegration, uint id = 0); + ~LinuxDmabufWlBuffer() override; + + void initImage(uint32_t plane, EGLImageKHR image); + void initTexture(uint32_t plane, QOpenGLTexture *texture); + inline QSize size() const { return m_size; } + inline uint32_t flags() const { return m_flags; } + inline uint32_t drmFormat() const { return m_drmFormat; } + inline Plane& plane(uint index) { return m_planes.at(index); } + inline uint32_t planesNumber() const { return m_planesNumber; } + inline EGLImageKHR image(uint32_t plane) { return m_eglImages.at(plane); } + inline QOpenGLTexture *texture(uint32_t plane) const { return m_textures.at(plane); } + void buffer_destroy_resource(Resource *resource) override; + + static const uint32_t MaxDmabufPlanes = 4; + +private: + QSize m_size; + uint32_t m_flags = 0; + uint32_t m_drmFormat = EGL_TEXTURE_RGBA; + std::array<Plane, MaxDmabufPlanes> m_planes; + uint32_t m_planesNumber = 1; + LinuxDmabufClientBufferIntegration *m_clientBufferIntegration = nullptr; + std::array<EGLImageKHR, MaxDmabufPlanes> m_eglImages = { {EGL_NO_IMAGE_KHR, EGL_NO_IMAGE_KHR, EGL_NO_IMAGE_KHR, EGL_NO_IMAGE_KHR} }; + std::array<QOpenGLTexture *, MaxDmabufPlanes> m_textures = { {nullptr, nullptr, nullptr, nullptr} }; + void freeResources(); + void buffer_destroy(Resource *resource) override; + + friend class LinuxDmabufParams; +}; + +QT_END_NAMESPACE + +#endif // LINUXDMABUF_H |