summaryrefslogtreecommitdiff
path: root/src/hardwareintegration/client/drm-egl-server/drmeglserverbufferintegration.h
blob: a06bc96b87dd4baee8607ecd06042b29d3cdb2fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef DRMEGLSERVERBUFFERINTEGRATION_H
#define DRMEGLSERVERBUFFERINTEGRATION_H

#include <QtWaylandClient/private/qwayland-wayland.h>
#include <QtCore/QVariant>
#include "qwayland-drm-egl-server-buffer.h"
#include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>

#include "drmeglserverbufferintegration.h"
#include <QtWaylandClient/private/qwaylanddisplay_p.h>
#include <QtCore/QTextStream>

#include <EGL/egl.h>
#include <EGL/eglext.h>
#ifndef EGL_KHR_image
typedef void *EGLImageKHR;
typedef EGLImageKHR (EGLAPIENTRYP PFNEGLCREATEIMAGEKHRPROC) (EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
typedef EGLBoolean (EGLAPIENTRYP PFNEGLDESTROYIMAGEKHRPROC) (EGLDisplay dpy, EGLImageKHR image);
#endif

#ifndef GL_OES_EGL_image
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
#endif

QT_BEGIN_NAMESPACE

namespace QtWaylandClient {

class DrmEglServerBufferIntegration;

class DrmServerBuffer : public QWaylandServerBuffer
{
public:
    DrmServerBuffer(DrmEglServerBufferIntegration *integration, int32_t name, int32_t width, int32_t height, int32_t stride, int32_t format);
    ~DrmServerBuffer() override;
    QOpenGLTexture* toOpenGlTexture() override;
private:
    DrmEglServerBufferIntegration *m_integration = nullptr;
    EGLImageKHR m_image;
    QOpenGLTexture *m_texture = nullptr;
};

class DrmEglServerBufferIntegration
    : public QWaylandServerBufferIntegration
    , public QtWayland::qt_drm_egl_server_buffer
{
public:
    void initialize(QWaylandDisplay *display) override;

    QWaylandServerBuffer *serverBuffer(struct qt_server_buffer *buffer) override;

    inline EGLImageKHR eglCreateImageKHR(EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
    inline EGLBoolean eglDestroyImageKHR (EGLImageKHR image);
    inline void glEGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image);
protected:
    void drm_egl_server_buffer_server_buffer_created(struct ::qt_server_buffer *id, int32_t name, int32_t width, int32_t height, int32_t stride, int32_t format) override;
private:
    static void wlDisplayHandleGlobal(void *data, struct ::wl_registry *registry, uint32_t id,
                                      const QString &interface, uint32_t version);
    void initializeEgl();

    PFNEGLCREATEIMAGEKHRPROC m_egl_create_image;
    PFNEGLDESTROYIMAGEKHRPROC m_egl_destroy_image;
    PFNGLEGLIMAGETARGETTEXTURE2DOESPROC m_gl_egl_image_target_texture;
    QWaylandDisplay *m_display = nullptr;
    EGLDisplay m_egl_display = EGL_NO_DISPLAY;
    bool m_egl_initialized = false;
};

EGLImageKHR DrmEglServerBufferIntegration::eglCreateImageKHR(EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list)
{
    if (!m_egl_initialized)
        initializeEgl();
    if (!m_egl_create_image) {
        qWarning("DrmEglServerBufferIntegration: Trying to used unresolved function eglCreateImageKHR");
        return EGL_NO_IMAGE_KHR;
    }
    return m_egl_create_image(m_egl_display, ctx, target, buffer,attrib_list);
}

EGLBoolean DrmEglServerBufferIntegration::eglDestroyImageKHR (EGLImageKHR image)
{
    if (!m_egl_destroy_image) {
        qWarning("DrmEglServerBufferIntegration: Trying to use unresolved function eglDestroyImageKHR");
        return false;
    }
    return m_egl_destroy_image(m_egl_display, image);
}

void DrmEglServerBufferIntegration::glEGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
{
    if (!m_gl_egl_image_target_texture) {
        qWarning("DrmEglServerBufferIntegration: Trying to use unresolved function glEGLImageTargetRenderbufferStorageOES");
        return;
    }
    m_gl_egl_image_target_texture(target,image);
}

}

QT_END_NAMESPACE

#endif