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
107
108
109
110
111
112
113
114
115
116
|
// 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
#include "qeglfsbrcmintegration.h"
#include <bcm_host.h>
QT_BEGIN_NAMESPACE
static DISPMANX_DISPLAY_HANDLE_T dispman_display = 0;
static EGLNativeWindowType createDispmanxLayer(const QPoint &pos, const QSize &size, int z, DISPMANX_FLAGS_ALPHA_T flags)
{
VC_RECT_T dst_rect;
dst_rect.x = pos.x();
dst_rect.y = pos.y();
dst_rect.width = size.width();
dst_rect.height = size.height();
VC_RECT_T src_rect;
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = size.width() << 16;
src_rect.height = size.height() << 16;
DISPMANX_UPDATE_HANDLE_T dispman_update = vc_dispmanx_update_start(0);
VC_DISPMANX_ALPHA_T alpha;
alpha.flags = flags;
alpha.opacity = 0xFF;
alpha.mask = 0;
DISPMANX_ELEMENT_HANDLE_T dispman_element = vc_dispmanx_element_add(
dispman_update, dispman_display, z, &dst_rect, 0, &src_rect,
DISPMANX_PROTECTION_NONE, &alpha, (DISPMANX_CLAMP_T *)NULL, (DISPMANX_TRANSFORM_T)0);
vc_dispmanx_update_submit_sync(dispman_update);
EGL_DISPMANX_WINDOW_T *eglWindow = new EGL_DISPMANX_WINDOW_T;
eglWindow->element = dispman_element;
eglWindow->width = size.width();
eglWindow->height = size.height();
return eglWindow;
}
static void destroyDispmanxLayer(EGLNativeWindowType window)
{
EGL_DISPMANX_WINDOW_T *eglWindow = static_cast<EGL_DISPMANX_WINDOW_T *>(window);
DISPMANX_UPDATE_HANDLE_T dispman_update = vc_dispmanx_update_start(0);
vc_dispmanx_element_remove(dispman_update, eglWindow->element);
vc_dispmanx_update_submit_sync(dispman_update);
delete eglWindow;
}
void QEglFSBrcmIntegration::platformInit()
{
bcm_host_init();
}
static int getDisplayId()
{
// As defined in vc_dispmanx_types.h
// DISPMANX_ID_MAIN_LCD 0
// DISPMANX_ID_AUX_LCD 1
// DISPMANX_ID_HDMI 2
// DISPMANX_ID_SDTV 3
// DISPMANX_ID_FORCE_LCD 4
// DISPMANX_ID_FORCE_TV 5
// DISPMANX_ID_FORCE_OTHER 6 /* non-default display */
static const int dispmanxId = qEnvironmentVariableIntValue("QT_QPA_EGLFS_DISPMANX_ID");
return (dispmanxId >= 0 && dispmanxId <= 6) ? dispmanxId : 0;
}
EGLNativeDisplayType QEglFSBrcmIntegration::platformDisplay() const
{
dispman_display = vc_dispmanx_display_open(getDisplayId());
return EGL_DEFAULT_DISPLAY;
}
void QEglFSBrcmIntegration::platformDestroy()
{
vc_dispmanx_display_close(dispman_display);
}
QSize QEglFSBrcmIntegration::screenSize() const
{
uint32_t width, height;
graphics_get_display_size(getDisplayId(), &width, &height);
return QSize(width, height);
}
EGLNativeWindowType QEglFSBrcmIntegration::createNativeWindow(QPlatformWindow *window, const QSize &size, const QSurfaceFormat &format)
{
Q_UNUSED(window);
return createDispmanxLayer(QPoint(0, 0), size, 1, format.hasAlpha() ? DISPMANX_FLAGS_ALPHA_FROM_SOURCE : DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS);
}
void QEglFSBrcmIntegration::destroyNativeWindow(EGLNativeWindowType window)
{
destroyDispmanxLayer(window);
}
bool QEglFSBrcmIntegration::hasCapability(QPlatformIntegration::Capability cap) const
{
switch (cap) {
case QPlatformIntegration::ThreadedPixmaps:
case QPlatformIntegration::OpenGL:
case QPlatformIntegration::ThreadedOpenGL:
case QPlatformIntegration::BufferQueueingOpenGL:
return true;
default:
return false;
}
}
QT_END_NAMESPACE
|
