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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "dmabufserverbufferintegration.h"
#include <QtOpenGL/QOpenGLTexture>
#include <QtGui/QOpenGLContext>
#include <drm_fourcc.h>
#include <unistd.h>
QT_BEGIN_NAMESPACE
DmaBufServerBuffer::DmaBufServerBuffer(DmaBufServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
: QtWayland::ServerBuffer(qimage.size(),format)
, m_integration(integration)
{
m_format = format;
EGLContext eglContext = eglGetCurrentContext();
m_texture = new QOpenGLTexture(qimage);
m_image = m_integration->eglCreateImageKHR(eglContext, EGL_GL_TEXTURE_2D_KHR, (EGLClientBuffer)(unsigned long)m_texture->textureId(), nullptr);
qCDebug(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer created egl image" << m_image;
int err = eglGetError();
if (err != EGL_SUCCESS || m_image == EGL_NO_IMAGE_KHR)
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer error creating EGL image" << Qt::hex << err;
// TODO: formats with more than one plane
int num_planes = 1;
if (!m_integration->eglExportDMABUFImageQueryMESA(m_image, &m_fourcc_format, &num_planes, nullptr)) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer: Failed to query egl image";
qCDebug(qLcWaylandCompositorHardwareIntegration) << "error" << Qt::hex << eglGetError();
} else {
qCDebug(qLcWaylandCompositorHardwareIntegration) << "num_planes" << num_planes << "fourcc_format" << m_fourcc_format;
if (num_planes != 1) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer: multi-plane formats not supported";
delete m_texture;
m_texture = nullptr;
m_integration->eglDestroyImageKHR(m_image);
m_image = EGL_NO_IMAGE_KHR;
return;
}
}
if (!m_integration->eglExportDMABUFImageMESA(m_image, &m_fd, &m_stride, &m_offset)) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer: Failed to export egl image. Error code" << Qt::hex << eglGetError();
} else {
qCDebug(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer exported egl image: fd" << m_fd << "stride" << m_stride << "offset" << m_offset;
m_texture->release();
}
}
DmaBufServerBuffer::~DmaBufServerBuffer()
{
delete m_texture;
int err;
m_integration->eglDestroyImageKHR(m_image);
if ((err = eglGetError()) != EGL_SUCCESS)
qCWarning(qLcWaylandCompositorHardwareIntegration) << "~DmaBufServerBuffer: eglDestroyImageKHR error" << Qt::hex << err;
err = ::close(m_fd);
if (err)
perror("~DmaBufServerBuffer:: error closing fd");
}
struct ::wl_resource *DmaBufServerBuffer::resourceForClient(struct ::wl_client *client)
{
auto *bufferResource = resourceMap().value(client);
if (!bufferResource) {
auto integrationResource = m_integration->resourceMap().value(client);
if (!integrationResource) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the qt_dmabuf_server_buffer interface";
return nullptr;
}
struct ::wl_resource *dmabuf_integration_resource = integrationResource->handle;
Resource *resource = add(client, 1);
m_integration->send_server_buffer_created(dmabuf_integration_resource, resource->handle, m_fd, m_size.width(), m_size.height(), m_stride, m_offset, m_fourcc_format);
return resource->handle;
}
return bufferResource->handle;
}
QOpenGLTexture *DmaBufServerBuffer::toOpenGlTexture()
{
if (!m_texture) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "DmaBufServerBuffer::toOpenGlTexture: no texture defined";
}
return m_texture;
}
bool DmaBufServerBuffer::bufferInUse()
{
return resourceMap().size() > 0;
}
DmaBufServerBufferIntegration::DmaBufServerBufferIntegration()
{
}
DmaBufServerBufferIntegration::~DmaBufServerBufferIntegration()
{
}
bool DmaBufServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
{
Q_ASSERT(QGuiApplication::platformNativeInterface());
m_egl_display = static_cast<EGLDisplay>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("egldisplay"));
if (!m_egl_display) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Cannot initialize dmabuf server buffer integration. Missing egl display from platform plugin";
return false;
}
const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS);
if (!extensionString || !strstr(extensionString, "EGL_KHR_image")) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Failed to initialize dmabuf server buffer integration. There is no EGL_KHR_image extension.";
return false;
}
m_egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
m_egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
if (!m_egl_create_image || !m_egl_destroy_image) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Failed to initialize dmabuf server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR";
return false;
}
m_gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
if (!m_gl_egl_image_target_texture_2d) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Failed to initialize dmabuf server buffer integration. Could not find glEGLImageTargetTexture2DOES.";
return false;
}
m_egl_export_dmabuf_image_query = reinterpret_cast<PFNEGLEXPORTDMABUFIMAGEQUERYMESAPROC>(eglGetProcAddress("eglExportDMABUFImageQueryMESA"));
if (!m_egl_export_dmabuf_image_query) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Failed to initialize dmabuf server buffer integration. Could not find eglExportDMABUFImageQueryMESA.";
return false;
}
m_egl_export_dmabuf_image = reinterpret_cast<PFNEGLEXPORTDMABUFIMAGEMESAPROC>(eglGetProcAddress("eglExportDMABUFImageMESA"));
if (!m_egl_export_dmabuf_image) {
qCWarning(qLcWaylandCompositorHardwareIntegration) << "Failed to initialize dmabuf server buffer integration. Could not find eglExportDMABUFImageMESA.";
return false;
}
QtWaylandServer::qt_dmabuf_server_buffer::init(compositor->display(), 1);
return true;
}
bool DmaBufServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
{
// TODO: 8-bit format support
switch (format) {
case QtWayland::ServerBuffer::RGBA32:
return true;
case QtWayland::ServerBuffer::A8:
return false;
default:
return false;
}
}
QtWayland::ServerBuffer *DmaBufServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
{
return new DmaBufServerBuffer(this, qimage, format);
}
void DmaBufServerBuffer::server_buffer_release(Resource *resource)
{
qCDebug(qLcWaylandCompositorHardwareIntegration) << "server_buffer RELEASE resource" << resource->handle << wl_resource_get_id(resource->handle) << "for client" << resource->client();
wl_resource_destroy(resource->handle);
}
QT_END_NAMESPACE
|
