Revision control
++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:critical reason:network-protocol
++
++ #include "drmeglserverbufferintegration.h"
++
++ #include <QtOpenGL/QOpenGLTexture>
++ #include <QtGui/QOpenGLContext>
++
++ QT_BEGIN_NAMESPACE
++
++ DrmEglServerBuffer::DrmEglServerBuffer(DrmEglServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
++ : QtWayland::ServerBuffer(qimage.size(),format)
++ , m_integration(integration)
++ {
++ m_format = format;
++
++ EGLint egl_format;
++ switch (m_format) {
++ case RGBA32:
++ m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_RGBA32;
++ egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
++ break;
++ #ifdef EGL_DRM_BUFFER_FORMAT_A8_MESA
++ case A8:
++ m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_A8;
++ egl_format = EGL_DRM_BUFFER_FORMAT_A8_MESA;
++ break;
++ #endif
++ default:
++ qWarning("DrmEglServerBuffer: unsupported format");
++ m_drm_format = QtWaylandServer::qt_drm_egl_server_buffer::format_RGBA32;
++ egl_format = EGL_DRM_BUFFER_FORMAT_ARGB32_MESA;
++ break;
++ }
++ EGLint imageAttribs[] = {
++ EGL_WIDTH, m_size.width(),
++ EGL_HEIGHT, m_size.height(),
++ EGL_DRM_BUFFER_FORMAT_MESA, egl_format,
++ EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SHARE_MESA,
++ EGL_NONE
++ };
++
++ m_image = m_integration->eglCreateDRMImageMESA(imageAttribs);
++
++ EGLint handle;
++ if (!m_integration->eglExportDRMImageMESA(m_image, &m_name, &handle, &m_stride)) {
++ qWarning("DrmEglServerBuffer: Failed to export egl image");
++ }
++
++ m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
++ m_texture->create();
++ m_texture->bind();
++
++ m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image);
++
++ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, qimage.width(), qimage.height(), GL_RGBA, GL_UNSIGNED_BYTE, qimage.constBits());
++
++ m_texture->release();
++ m_texture->setSize(m_size.width(), m_size.height());
++ }
++
++ struct ::wl_resource *DrmEglServerBuffer::resourceForClient(struct ::wl_client *client)
++ {
++ auto *bufferResource = resourceMap().value(client);
++ if (!bufferResource) {
++ auto integrationResource = m_integration->resourceMap().value(client);
++ if (!integrationResource) {
++ qWarning("DrmEglServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the drm_egl interface");
++ return nullptr;
++ }
++ struct ::wl_resource *drm_egl_integration_resource = integrationResource->handle;
++ Resource *resource = add(client, 1);
++ m_integration->send_server_buffer_created(drm_egl_integration_resource, resource->handle, m_name, m_size.width(), m_size.height(), m_stride, m_drm_format);
++ return resource->handle;
++ }
++ return bufferResource->handle;
++ }
++
++
++ QOpenGLTexture *DrmEglServerBuffer::toOpenGlTexture()
++ {
++ if (!m_texture) {
++ qWarning("DrmEglServerBuffer::toOpenGlTexture: no texture defined");
++ }
++ return m_texture;
++ }
++
++ bool DrmEglServerBuffer::bufferInUse()
++ {
++ return resourceMap().size() > 0;
++ }
++
++ DrmEglServerBufferIntegration::DrmEglServerBufferIntegration()
++ {
++ }
++
++ DrmEglServerBufferIntegration::~DrmEglServerBufferIntegration()
++ {
++ }
++
++ bool DrmEglServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
++ {
++ Q_ASSERT(QGuiApplication::platformNativeInterface());
++
++ m_egl_display = static_cast<EGLDisplay>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("egldisplay"));
++ if (!m_egl_display) {
++ qWarning("Can't initialize drm egl 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")) {
++ qWarning("Failed to initialize drm egl server buffer integration. There is no EGL_KHR_image extension.\n");
++ 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) {
++ qWarning("Failed to initialize drm egl server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR");
++ return false;
++ }
++
++ if (!extensionString || !strstr(extensionString, "EGL_MESA_drm_image")) {
++ qWarning("Failed to initialize drm egl server buffer integration. There is no EGL_MESA_drm_image extension.\n");
++ return false;
++ }
++
++ m_egl_create_drm_image = reinterpret_cast<PFNEGLCREATEDRMIMAGEMESAPROC>(eglGetProcAddress("eglCreateDRMImageMESA"));
++ m_egl_export_drm_image = reinterpret_cast<PFNEGLEXPORTDRMIMAGEMESAPROC>(eglGetProcAddress("eglExportDRMImageMESA"));
++ if (!m_egl_create_drm_image || !m_egl_export_drm_image) {
++ qWarning("Failed to initialize drm egl server buffer integration. Could not find eglCreateDRMImageMESA or eglExportDRMImageMESA.\n");
++ return false;
++ }
++
++ m_gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
++ if (!m_gl_egl_image_target_texture_2d) {
++ qWarning("Failed to initialize drm egl server buffer integration. Could not find glEGLImageTargetTexture2DOES.\n");
++ return false;
++ }
++
++ QtWaylandServer::qt_drm_egl_server_buffer::init(compositor->display(), 1);
++ return true;
++ }
++
++ bool DrmEglServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
++ {
++ switch (format) {
++ case QtWayland::ServerBuffer::RGBA32:
++ return true;
++ case QtWayland::ServerBuffer::A8:
++ #ifdef EGL_DRM_BUFFER_FORMAT_A8_MESA
++ return true;
++ #else
++ return false;
++ #endif
++ default:
++ return false;
++ }
++ }
++
++ QtWayland::ServerBuffer *DrmEglServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
++ {
++ return new DrmEglServerBuffer(this, qimage, format);
++ }
++
++ QT_END_NAMESPACE