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| ****************************************************************************/ |
| |
| #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 |