diff options
Diffstat (limited to 'src/hardwareintegration/client/dmabuf-server/dmabufserverbufferintegration.cpp')
| -rw-r--r-- | src/hardwareintegration/client/dmabuf-server/dmabufserverbufferintegration.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/hardwareintegration/client/dmabuf-server/dmabufserverbufferintegration.cpp b/src/hardwareintegration/client/dmabuf-server/dmabufserverbufferintegration.cpp new file mode 100644 index 000000000..9f840414e --- /dev/null +++ b/src/hardwareintegration/client/dmabuf-server/dmabufserverbufferintegration.cpp @@ -0,0 +1,188 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "dmabufserverbufferintegration.h" +#include <QtWaylandClient/private/qwaylanddisplay_p.h> +#include <QDebug> +#include <QtGui/QOpenGLContext> +#include <QtGui/QOpenGLTexture> + +#include <EGL/egl.h> +#include <EGL/eglext.h> + +QT_BEGIN_NAMESPACE + +namespace QtWaylandClient { + +DmaBufServerBuffer::DmaBufServerBuffer(DmaBufServerBufferIntegration *integration + , struct ::qt_server_buffer *id + , int32_t fd + , int32_t width + , int32_t height + , int32_t stride + , int32_t offset + , int32_t fourcc_format) + : m_integration(integration) + , m_server_buffer(id) +{ + m_size = QSize(width, height); + + + EGLint import_attribs[] = { + EGL_WIDTH, width, + EGL_HEIGHT, height, + EGL_LINUX_DRM_FOURCC_EXT, fourcc_format, + EGL_DMA_BUF_PLANE0_FD_EXT, fd, + EGL_DMA_BUF_PLANE0_OFFSET_EXT, offset, + EGL_DMA_BUF_PLANE0_PITCH_EXT, stride, + EGL_NONE + }; + + m_image = integration->eglCreateImageKHR( + EGL_NO_CONTEXT, + EGL_LINUX_DMA_BUF_EXT, + (EGLClientBuffer)nullptr, + import_attribs); + + int err = eglGetError(); + qCDebug(lcQpaWayland) << "imported egl image" << m_image; + if (m_image == EGL_NO_IMAGE_KHR || err != EGL_SUCCESS) + qCWarning(lcQpaWayland) << "DmaBufServerBuffer error importing image. EGL error code" << hex << err; + + qt_server_buffer_set_user_data(id, this); + +} + +DmaBufServerBuffer::~DmaBufServerBuffer() +{ + int err = m_integration->eglDestroyImageKHR(m_image); + if (err != EGL_SUCCESS) + qCWarning(lcQpaWayland) << "~DmaBufServerBuffer error destroying image" << m_image << "error code " << hex << err; + qt_server_buffer_release(m_server_buffer); + qt_server_buffer_destroy(m_server_buffer); +} + +QOpenGLTexture *DmaBufServerBuffer::toOpenGlTexture() +{ + if (!QOpenGLContext::currentContext()) + qCWarning(lcQpaWayland) <<"DmaBufServerBuffer: creating texture with no current context"; + + if (!m_texture) { + m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D); + m_texture->create(); + } + + m_texture->bind(); + m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + m_texture->release(); + m_texture->setSize(m_size.width(), m_size.height()); + return m_texture; +} + +void DmaBufServerBufferIntegration::initializeEgl() +{ + if (m_egl_initialized) + return; + m_egl_initialized = true; + + m_egl_display = eglGetDisplay((EGLNativeDisplayType) m_display->wl_display()); + if (m_egl_display == EGL_NO_DISPLAY) { + qCWarning(lcQpaWayland) << "Failed to initialize drm egl server buffer integration. Could not get egl display from wl_display."; + return; + } + + const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS); + + + if (!extensionString || !strstr(extensionString, "EGL_KHR_image")) { + qCWarning(lcQpaWayland) << "Failed to initialize dmabuf server buffer integration. There is no EGL_KHR_image extension.\n"; + return; + } + 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(lcQpaWayland) << "Failed to initialize dmabuf server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR"; + return; + } + + m_gl_egl_image_target_texture = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES")); + if (!m_gl_egl_image_target_texture) { + qCWarning(lcQpaWayland) << "Failed to initialize dmabuf server buffer integration. Could not resolve glEGLImageTargetTexture2DOES"; + return; + } +} + +void DmaBufServerBufferIntegration::initialize(QWaylandDisplay *display) +{ + m_display = display; + display->addRegistryListener(&wlDisplayHandleGlobal, this); +} + +QWaylandServerBuffer *DmaBufServerBufferIntegration::serverBuffer(struct qt_server_buffer *buffer) +{ + return static_cast<QWaylandServerBuffer *>(qt_server_buffer_get_user_data(buffer)); +} + +void DmaBufServerBufferIntegration::wlDisplayHandleGlobal(void *data, ::wl_registry *registry, uint32_t id, const QString &interface, uint32_t version) +{ + Q_UNUSED(version); + if (interface == QStringLiteral("qt_dmabuf_server_buffer")) { + auto *integration = static_cast<DmaBufServerBufferIntegration *>(data); + integration->QtWayland::qt_dmabuf_server_buffer::init(registry, id, 1); + } +} + +void DmaBufServerBufferIntegration::dmabuf_server_buffer_server_buffer_created(struct ::qt_server_buffer *id + , int32_t name + , int32_t width + , int32_t height + , int32_t stride + , int32_t offset + , int32_t format) +{ + (void) new DmaBufServerBuffer(this, id, name, width, height, stride, offset, format); +} + +} + +QT_END_NAMESPACE |