C++ EPHYR_LOG_ERROR函數代碼示例

Bool
ephyrHostDestroyContext(int a_ctxt_id)
{
    Bool is_ok = FALSE;
    Display *dpy = hostx_get_display();
    int major_opcode = 0, remote_ctxt_id = 0;
    xGLXDestroyContextReq *req = NULL;

    EPHYR_LOG("enter:%d\n", a_ctxt_id);

    if (!ephyrHostGLXGetMajorOpcode(&major_opcode)) {
        EPHYR_LOG_ERROR("failed to get major opcode\n");
        goto out;
    }
    if (!hostx_get_resource_id_peer(a_ctxt_id, &remote_ctxt_id)) {
        EPHYR_LOG_ERROR("failed to get remote glx ctxt id\n");
        goto out;
    }
    EPHYR_LOG("host context id:%d\n", remote_ctxt_id);

    LockDisplay(dpy);
    GetReq(GLXDestroyContext, req);
    req->reqType = major_opcode;
    req->glxCode = X_GLXDestroyContext;
    req->context = remote_ctxt_id;
    UnlockDisplay(dpy);
    SyncHandle();

    is_ok = TRUE;

 out:
    EPHYR_LOG("leave\n");
    return is_ok;
}

static int
ephyrGLXGetIntegervReal(__GLXclientState * a_cl, GLbyte * a_pc, Bool a_do_swap)
{
    int res = BadImplementation;
    xGLXSingleReq *const req = (xGLXSingleReq *) a_pc;
    GLenum int_name;
    int value = 0;
    GLint answer_buf_room[200];
    GLint *buf = NULL;

    EPHYR_LOG("enter\n");

    a_pc += __GLX_SINGLE_HDR_SIZE;

    int_name = *(GLenum *) (a_pc + 0);
    if (!ephyrHostGetIntegerValue(req->contextTag, int_name, &value)) {
        EPHYR_LOG_ERROR("ephyrHostGetIntegerValue() failed\n");
        goto out;
    }
    buf = __glXGetAnswerBuffer(a_cl, sizeof(value),
                               answer_buf_room, sizeof(answer_buf_room), 4);

    if (!buf) {
        EPHYR_LOG_ERROR("failed to allocate reply buffer\n");
        res = BadAlloc;
        goto out;
    }
    __glXSendReply(a_cl->client, buf, 1, sizeof(value), GL_FALSE, 0);
    res = Success;

 out:
    EPHYR_LOG("leave\n");
    return res;
}

static int
ephyrGetPortAttribute(KdScreenInfo * a_screen_info,
                      Atom a_attr_name, int *a_attr_value, pointer a_port_priv)
{
    int res = Success, host_atom = 0;
    EphyrPortPriv *port_priv = a_port_priv;

    EPHYR_RETURN_VAL_IF_FAIL(port_priv, BadMatch);
    EPHYR_RETURN_VAL_IF_FAIL(ValidAtom(a_attr_name), BadMatch);

    EPHYR_LOG("enter, portnum:%d, atomid:%d, attr_name:%s\n",
              port_priv->port_number,
              (int) a_attr_name, NameForAtom(a_attr_name));

    if (!ephyrLocalAtomToHost(a_attr_name, &host_atom)) {
        EPHYR_LOG_ERROR("failed to convert local atom to host atom\n");
        res = BadMatch;
        goto out;
    }

    if (!ephyrHostXVGetPortAttribute(port_priv->port_number,
                                     host_atom, a_attr_value)) {
        EPHYR_LOG_ERROR("failed to get port attribute\n");
        res = BadMatch;
        goto out;
    }

    res = Success;
 out:
    EPHYR_LOG("leave\n");
    return res;
}

static EphyrXVPriv *
ephyrXVPrivNew(void)
{
    EphyrXVPriv *xv_priv = NULL;

    EPHYR_LOG("enter\n");

    xv_priv = calloc(1, sizeof(EphyrXVPriv));
    if (!xv_priv) {
        EPHYR_LOG_ERROR("failed to create EphyrXVPriv\n");
        goto error;
    }

    ephyrHostXVInit();

    if (!ephyrXVPrivQueryHostAdaptors(xv_priv)) {
        EPHYR_LOG_ERROR("failed to query the host x for xv properties\n");
        goto error;
    }
    if (!ephyrXVPrivSetAdaptorsHooks(xv_priv)) {
        EPHYR_LOG_ERROR("failed to set xv_priv hooks\n");
        goto error;
    }

    EPHYR_LOG("leave\n");
    return xv_priv;

 error:
    if (xv_priv) {
        ephyrXVPrivDelete(xv_priv);
        xv_priv = NULL;
    }
    return NULL;
}

Bool
ephyrInitVideo(ScreenPtr pScreen)
{
    Bool is_ok = FALSE;

    KdScreenPriv(pScreen);
    KdScreenInfo *screen = pScreenPriv->screen;
    static EphyrXVPriv *xv_priv;

    EPHYR_LOG("enter\n");

    if (screen->fb.bitsPerPixel == 8) {
        EPHYR_LOG_ERROR("8 bits depth not supported\n");
        return FALSE;
    }

    if (!xv_priv) {
        xv_priv = ephyrXVPrivNew();
    }
    if (!xv_priv) {
        EPHYR_LOG_ERROR("failed to create xv_priv\n");
        goto out;
    }

    if (!ephyrXVPrivRegisterAdaptors(xv_priv, pScreen)) {
        EPHYR_LOG_ERROR("failed to register adaptors\n");
        goto out;
    }
    is_ok = TRUE;

 out:
    return is_ok;
}

Bool
ephyrDRIGetDrawableInfo(int a_screen,
                        int a_drawable,
                        unsigned int *a_index,
                        unsigned int *a_stamp,
                        int *a_x,
                        int *a_y,
                        int *a_w,
                        int *a_h,
                        int *a_num_clip_rects,
                        drm_clip_rect_t ** a_clip_rects,
                        int *a_back_x,
                        int *a_back_y,
                        int *a_num_back_clip_rects,
                        drm_clip_rect_t ** a_back_clip_rects)
{
    Bool is_ok = FALSE;
    Display *dpy = hostx_get_display();
    EphyrHostWindowAttributes attrs;

    EPHYR_RETURN_VAL_IF_FAIL(a_x && a_y && a_w && a_h
                             && a_num_clip_rects, FALSE);

    EPHYR_LOG("enter\n");
    memset(&attrs, 0, sizeof(attrs));
    if (!hostx_get_window_attributes(a_drawable, &attrs)) {
        EPHYR_LOG_ERROR("failed to query host window attributes\n");
        goto out;
    }
    if (!XF86DRIGetDrawableInfo(dpy, DefaultScreen(dpy), a_drawable,
                                a_index, a_stamp,
                                a_x, a_y,
                                a_w, a_h,
                                a_num_clip_rects, a_clip_rects,
                                a_back_x, a_back_y,
                                a_num_back_clip_rects, a_back_clip_rects)) {
        EPHYR_LOG_ERROR("XF86DRIGetDrawableInfo ()\n");
        goto out;
    }
    EPHYR_LOG("host x,y,w,h: (%d,%d,%d,%d)\n", *a_x, *a_y, *a_w, *a_h);
    if (*a_num_clip_rects) {
        free(*a_back_clip_rects);
        *a_back_clip_rects = calloc(*a_num_clip_rects, sizeof(drm_clip_rect_t));
        memmove(*a_back_clip_rects,
                *a_clip_rects, *a_num_clip_rects * sizeof(drm_clip_rect_t));
        *a_num_back_clip_rects = *a_num_clip_rects;
    }
    EPHYR_LOG("num back clip rects:%d, num clip rects:%d\n",
              *a_num_clip_rects, *a_num_back_clip_rects);
    *a_back_x = *a_x;
    *a_back_y = *a_y;
    *a_w = attrs.width;
    *a_h = attrs.height;

    is_ok = TRUE;
 out:
    EPHYR_LOG("leave. index:%d, stamp:%d, x,y:(%d,%d), w,y:(%d,%d)\n",
              *a_index, *a_stamp, *a_x, *a_y, *a_w, *a_h);
    return is_ok;
}

static int
ephyrSetPortAttribute(KdScreenInfo * a_info,
                      Atom a_attr_name, int a_attr_value, pointer a_port_priv)
{
    int res = Success, host_atom = 0;
    EphyrPortPriv *port_priv = a_port_priv;
    Bool is_attr_valid = FALSE;

    EPHYR_RETURN_VAL_IF_FAIL(port_priv, BadMatch);
    EPHYR_RETURN_VAL_IF_FAIL(port_priv->current_adaptor, BadMatch);
    EPHYR_RETURN_VAL_IF_FAIL(port_priv->current_adaptor->pAttributes, BadMatch);
    EPHYR_RETURN_VAL_IF_FAIL(port_priv->current_adaptor->nAttributes, BadMatch);
    EPHYR_RETURN_VAL_IF_FAIL(ValidAtom(a_attr_name), BadMatch);

    EPHYR_LOG("enter, portnum:%d, atomid:%d, attr_name:%s, attr_val:%d\n",
              port_priv->port_number,
              (int) a_attr_name, NameForAtom(a_attr_name), a_attr_value);

    if (!ephyrLocalAtomToHost(a_attr_name, &host_atom)) {
        EPHYR_LOG_ERROR("failed to convert local atom to host atom\n");
        res = BadMatch;
        goto out;
    }

    if (!ephyrXVPrivIsAttrValueValid(port_priv->current_adaptor->pAttributes,
                                     port_priv->current_adaptor->nAttributes,
                                     NameForAtom(a_attr_name),
                                     a_attr_value, &is_attr_valid)) {
        EPHYR_LOG_ERROR("failed to validate attribute %s\n",
                        NameForAtom(a_attr_name));
        /*
           res = BadMatch ;
           goto out ;
         */
    }
    if (!is_attr_valid) {
        EPHYR_LOG_ERROR("attribute %s is not valid\n",
                        NameForAtom(a_attr_name));
        /*
           res = BadMatch ;
           goto out ;
         */
    }

    if (!ephyrHostXVSetPortAttribute(port_priv->port_number,
                                     host_atom, a_attr_value)) {
        EPHYR_LOG_ERROR("failed to set port attribute\n");
        res = BadMatch;
        goto out;
    }

    res = Success;
 out:
    EPHYR_LOG("leave\n");
    return res;
}

static int
ephyrPutVideo(KdScreenInfo * a_info,
              DrawablePtr a_drawable,
              short a_vid_x, short a_vid_y,
              short a_drw_x, short a_drw_y,
              short a_vid_w, short a_vid_h,
              short a_drw_w, short a_drw_h,
              RegionPtr a_clipping_region, pointer a_port_priv)
{
    EphyrPortPriv *port_priv = a_port_priv;
    BoxRec clipped_area, dst_box;
    int result = BadImplementation;
    int drw_x = 0, drw_y = 0, drw_w = 0, drw_h = 0;

    EPHYR_RETURN_VAL_IF_FAIL(a_info->pScreen, BadValue);
    EPHYR_RETURN_VAL_IF_FAIL(a_drawable && port_priv, BadValue);

    EPHYR_LOG("enter\n");

    dst_box.x1 = a_drw_x;
    dst_box.x2 = a_drw_x + a_drw_w;
    dst_box.y1 = a_drw_y;
    dst_box.y2 = a_drw_y + a_drw_h;

    if (!DoSimpleClip(&dst_box,
                      RegionExtents(a_clipping_region), &clipped_area)) {
        EPHYR_LOG_ERROR("failed to simple clip\n");
        goto out;
    }

    drw_x = clipped_area.x1;
    drw_y = clipped_area.y1;
    drw_w = clipped_area.x2 - clipped_area.x1;
    drw_h = clipped_area.y2 - clipped_area.y1;

    if (!ephyrHostXVPutVideo(a_info->pScreen->myNum,
                             port_priv->port_number,
                             a_vid_x, a_vid_y, a_vid_w, a_vid_h,
                             a_drw_x, a_drw_y, a_drw_w, a_drw_h)) {
        EPHYR_LOG_ERROR("ephyrHostXVPutVideo() failed\n");
        goto out;
    }
    result = Success;

 out:
    EPHYR_LOG("leave\n");
    return result;
}

static void
ephyrProcessExpose(xcb_generic_event_t *xev)
{
    xcb_expose_event_t *expose = (xcb_expose_event_t *)xev;
    KdScreenInfo *screen = screen_from_window(expose->window);
    EphyrScrPriv *scrpriv = screen->driver;

    /* Wait for the last expose event in a series of cliprects
     * to actually paint our screen.
     */
    if (expose->count != 0)
        return;

    if (scrpriv) {
        hostx_paint_rect(scrpriv->screen, 0, 0, 0, 0,
                         scrpriv->win_width,
                         scrpriv->win_height);
    } else {
        EPHYR_LOG_ERROR("failed to get host screen\n");
#ifdef XF86DRI
        /*
         * We only receive expose events when the expose event
         * have be generated for a drawable that is a host X
         * window managed by Xephyr. Host X windows managed by
         * Xephyr exists for instance when Xephyr is asked to
         * create a GL drawable in a DRI environment.
         */
        ephyrExposePairedWindow(expose->window);
#endif                          /* XF86DRI */
    }
}

static void
ephyrQueryBestSize(KdScreenInfo * a_info,
                   Bool a_motion,
                   short a_src_w,
                   short a_src_h,
                   short a_drw_w,
                   short a_drw_h,
                   unsigned int *a_prefered_w,
                   unsigned int *a_prefered_h, pointer a_port_priv)
{
    int res = 0;
    EphyrPortPriv *port_priv = a_port_priv;

    EPHYR_RETURN_IF_FAIL(port_priv);

    EPHYR_LOG("enter\n");
    res = ephyrHostXVQueryBestSize(port_priv->port_number,
                                   a_motion,
                                   a_src_w, a_src_h,
                                   a_drw_w, a_drw_h,
                                   a_prefered_w, a_prefered_h);
    if (!res) {
        EPHYR_LOG_ERROR("Failed to query best size\n");
    }
    EPHYR_LOG("leave\n");
}

static int
ephyrGLXIsDirectReal (__GLXclientState *a_cl, GLbyte *a_pc, Bool a_do_swap)
{
    int res=BadImplementation;
    ClientPtr client = a_cl->client;
    xGLXIsDirectReq *req = (xGLXIsDirectReq *) a_pc;
    xGLXIsDirectReply reply;
    int is_direct=0 ;

    EPHYR_RETURN_VAL_IF_FAIL (a_cl && a_pc, FALSE) ;

    EPHYR_LOG ("enter\n") ;

    memset (&reply, 0, sizeof (reply)) ;
    if (!ephyrHostIsContextDirect (req->context, (int*)&is_direct)) {
        EPHYR_LOG_ERROR ("ephyrHostIsContextDirect() failed\n") ;
        goto out ;
    }
    reply.isDirect = is_direct ;
    reply.length = 0;
    reply.type = X_Reply;
    reply.sequenceNumber = client->sequence;
    WriteToClient(client, sz_xGLXIsDirectReply, (char *)&reply);
    res = Success ;

out:
    EPHYR_LOG ("leave\n") ;
    return res ;
}

static int
ephyrQueryImageAttributes(KdScreenInfo * a_info,
                          int a_id,
                          unsigned short *a_w,
                          unsigned short *a_h, int *a_pitches, int *a_offsets)
{
    int image_size = 0;

    EPHYR_RETURN_VAL_IF_FAIL(a_w && a_h, FALSE);

    EPHYR_LOG("enter: dim (%dx%d), pitches: %p, offsets: %p\n",
              *a_w, *a_h, a_pitches, a_offsets);

    if (!ephyrHostXVQueryImageAttributes(s_base_port_id,
                                         a_id,
                                         a_w, a_h,
                                         &image_size, a_pitches, a_offsets)) {
        EPHYR_LOG_ERROR("EphyrHostXVQueryImageAttributes() failed\n");
        goto out;
    }
    EPHYR_LOG("image size: %d, dim (%dx%d)\n", image_size, *a_w, *a_h);

 out:
    EPHYR_LOG("leave\n");
    return image_size;
}

Bool
ephyrInitScreen(ScreenPtr pScreen)
{
    KdScreenPriv(pScreen);
    KdScreenInfo *screen = pScreenPriv->screen;

    EPHYR_LOG("pScreen->myNum:%d\n", pScreen->myNum);
    hostx_set_screen_number(screen, pScreen->myNum);
    if (EphyrWantNoHostGrab) {
        hostx_set_win_title(screen, "xephyr");
    } else {
        hostx_set_win_title(screen, "(ctrl+shift grabs mouse and keyboard)");
    }
    pScreen->CreateColormap = ephyrCreateColormap;

#ifdef XV
    if (!ephyrNoXV) {
        if (ephyr_glamor)
            ephyr_glamor_xv_init(pScreen);
        else if (!ephyrInitVideo(pScreen)) {
            EPHYR_LOG_ERROR("failed to initialize xvideo\n");
        }
        else {
            EPHYR_LOG("initialized xvideo okay\n");
        }
    }
#endif /*XV*/

    return TRUE;
}

static Bool
ephyrXVPrivSaveImageToPortPriv(EphyrPortPriv * a_port_priv,
                               const unsigned char *a_image_buf,
                               int a_image_len)
{
    Bool is_ok = FALSE;

    EPHYR_LOG("enter\n");

    if (a_port_priv->image_buf_size < a_image_len) {
        unsigned char *buf = NULL;

        buf = realloc(a_port_priv->image_buf, a_image_len);
        if (!buf) {
            EPHYR_LOG_ERROR("failed to realloc image buffer\n");
            goto out;
        }
        a_port_priv->image_buf = buf;
        a_port_priv->image_buf_size = a_image_len;
    }
    memmove(a_port_priv->image_buf, a_image_buf, a_image_len);
    is_ok = TRUE;

 out:
    return is_ok;
    EPHYR_LOG("leave\n");
}

static Bool
ephyrXVPrivIsAttrValueValid(KdAttributePtr a_attrs,
                            int a_attrs_len,
                            const char *a_attr_name,
                            int a_attr_value, Bool *a_is_valid)
{
    int i = 0;

    EPHYR_RETURN_VAL_IF_FAIL(a_attrs && a_attr_name && a_is_valid, FALSE);

    for (i = 0; i < a_attrs_len; i++) {
        if (a_attrs[i].name && strcmp(a_attrs[i].name, a_attr_name))
            continue;
        if (a_attrs[i].min_value > a_attr_value ||
            a_attrs[i].max_value < a_attr_value) {
            *a_is_valid = FALSE;
            EPHYR_LOG_ERROR("attribute was not valid\n"
                            "value:%d. min:%d. max:%d\n",
                            a_attr_value,
                            a_attrs[i].min_value, a_attrs[i].max_value);
        }
        else {
            *a_is_valid = TRUE;
        }
        return TRUE;
    }
    return FALSE;
}