vo_xv.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 920 行 · 第 1/2 页

    XSync(mDisplay, False);
    return;
}

static inline void put_xvimage( XvImage * xvi )
{
#ifdef HAVE_SHM
    if (Shmem_Flag)
    {
        XvShmPutImage(mDisplay, xv_port, vo_window, vo_gc,
                      xvi, 0, 0, image_width,
                      image_height, drwX - (vo_panscan_x >> 1),
                      drwY - (vo_panscan_y >> 1), vo_dwidth + vo_panscan_x,
                      vo_dheight + vo_panscan_y,
                      False);
    } else
#endif
    {
        XvPutImage(mDisplay, xv_port, vo_window, vo_gc,
                   xvi, 0, 0, image_width, image_height,
                   drwX - (vo_panscan_x >> 1), drwY - (vo_panscan_y >> 1),
                   vo_dwidth + vo_panscan_x,
                   vo_dheight + vo_panscan_y);
    }
}

static void check_events(void)
{
    int e = vo_x11_check_events(mDisplay);

    if (e & VO_EVENT_RESIZE)
    {
        XGetGeometry(mDisplay, vo_window, &mRoot, &drwX, &drwY, &vo_dwidth,
                     &vo_dheight, &drwBorderWidth, &drwDepth);
        mp_msg(MSGT_VO, MSGL_V, "[xv] dx: %d dy: %d dw: %d dh: %d\n", drwX,
               drwY, vo_dwidth, vo_dheight);

        calc_drwXY(&drwX, &drwY);
    }

    if (e & VO_EVENT_EXPOSE || e & VO_EVENT_RESIZE)
    {
	vo_xv_draw_colorkey(drwX - (vo_panscan_x >> 1),
			    drwY - (vo_panscan_y >> 1),
			    vo_dwidth + vo_panscan_x - 1,
			    vo_dheight + vo_panscan_y - 1);
    }

    if ((e & VO_EVENT_EXPOSE || e & VO_EVENT_RESIZE) && int_pause)
    {
        /* did we already draw a buffer */
        if ( visible_buf != -1 )
        {
          /* redraw the last visible buffer */
          put_xvimage( xvimage[visible_buf] );
        }
    }
}

static void draw_osd(void)
{
    vo_draw_text(image_width -
                 image_width * vo_panscan_x / (vo_dwidth + vo_panscan_x),
                 image_height, draw_alpha_fnc);
}

static void flip_page(void)
{
    put_xvimage( xvimage[current_buf] );

    /* remember the currently visible buffer */
    visible_buf = current_buf;

    if (num_buffers > 1)
    {
        current_buf =
            vo_directrendering ? 0 : ((current_buf + 1) % num_buffers);
        XFlush(mDisplay);
    } else
        XSync(mDisplay, False);
    return;
}

static int draw_slice(uint8_t * image[], int stride[], int w, int h,
                           int x, int y)
{
    uint8_t *dst;

    dst = xvimage[current_buf]->data + xvimage[current_buf]->offsets[0] +
        xvimage[current_buf]->pitches[0] * y + x;
    memcpy_pic(dst, image[0], w, h, xvimage[current_buf]->pitches[0],
               stride[0]);

    x /= 2;
    y /= 2;
    w /= 2;
    h /= 2;

    dst = xvimage[current_buf]->data + xvimage[current_buf]->offsets[1] +
        xvimage[current_buf]->pitches[1] * y + x;
    if (image_format != IMGFMT_YV12)
        memcpy_pic(dst, image[1], w, h, xvimage[current_buf]->pitches[1],
                   stride[1]);
    else
        memcpy_pic(dst, image[2], w, h, xvimage[current_buf]->pitches[1],
                   stride[2]);

    dst = xvimage[current_buf]->data + xvimage[current_buf]->offsets[2] +
        xvimage[current_buf]->pitches[2] * y + x;
    if (image_format == IMGFMT_YV12)
        memcpy_pic(dst, image[1], w, h, xvimage[current_buf]->pitches[1],
                   stride[1]);
    else
        memcpy_pic(dst, image[2], w, h, xvimage[current_buf]->pitches[1],
                   stride[2]);

    return 0;
}

static int draw_frame(uint8_t * src[])
{
    mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_XV_DrawFrameCalled);
    return -1;
}

static uint32_t draw_image(mp_image_t * mpi)
{
    if (mpi->flags & MP_IMGFLAG_DIRECT)
    {
        // direct rendering:
        current_buf = (int) (mpi->priv);        // hack!
        return VO_TRUE;
    }
    if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK)
        return VO_TRUE;         // done
    if (mpi->flags & MP_IMGFLAG_PLANAR)
    {
        draw_slice(mpi->planes, mpi->stride, mpi->w, mpi->h, 0, 0);
        return VO_TRUE;
    }
    if (mpi->flags & MP_IMGFLAG_YUV)
    {
        // packed YUV:
        memcpy_pic(xvimage[current_buf]->data +
                   xvimage[current_buf]->offsets[0], mpi->planes[0],
                   mpi->w * (mpi->bpp / 8), mpi->h,
                   xvimage[current_buf]->pitches[0], mpi->stride[0]);
        return VO_TRUE;
    }
    return VO_FALSE;            // not (yet) supported
}

static uint32_t get_image(mp_image_t * mpi)
{
    int buf = current_buf;      // we shouldn't change current_buf unless we do DR!

    if (mpi->type == MP_IMGTYPE_STATIC && num_buffers > 1)
        return VO_FALSE;        // it is not static
    if (mpi->imgfmt != image_format)
        return VO_FALSE;        // needs conversion :(
//    if(mpi->flags&MP_IMGFLAG_READABLE) return VO_FALSE; // slow video ram
    if (mpi->flags & MP_IMGFLAG_READABLE &&
        (mpi->type == MP_IMGTYPE_IPB || mpi->type == MP_IMGTYPE_IP))
    {
        // reference (I/P) frame of IP or IPB:
        if (num_buffers < 2)
            return VO_FALSE;    // not enough
        current_ip_buf ^= 1;
        // for IPB with 2 buffers we can DR only one of the 2 P frames:
        if (mpi->type == MP_IMGTYPE_IPB && num_buffers < 3
            && current_ip_buf)
            return VO_FALSE;
        buf = current_ip_buf;
        if (mpi->type == MP_IMGTYPE_IPB)
            ++buf;              // preserve space for B
    }
    if (mpi->height > xvimage[buf]->height)
        return VO_FALSE;        //buffer to small
    if (mpi->width * (mpi->bpp / 8) > xvimage[buf]->pitches[0])
        return VO_FALSE;        //buffer to small
    if ((mpi->flags & (MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_ACCEPT_WIDTH))
        || (mpi->width * (mpi->bpp / 8) == xvimage[buf]->pitches[0]))
    {
        current_buf = buf;
        mpi->planes[0] =
            xvimage[current_buf]->data + xvimage[current_buf]->offsets[0];
        mpi->stride[0] = xvimage[current_buf]->pitches[0];
        mpi->width = mpi->stride[0] / (mpi->bpp / 8);
        if (mpi->flags & MP_IMGFLAG_PLANAR)
        {
            if (mpi->flags & MP_IMGFLAG_SWAPPED)
            {
                // I420
                mpi->planes[1] =
                    xvimage[current_buf]->data +
                    xvimage[current_buf]->offsets[1];
                mpi->planes[2] =
                    xvimage[current_buf]->data +
                    xvimage[current_buf]->offsets[2];
                mpi->stride[1] = xvimage[current_buf]->pitches[1];
                mpi->stride[2] = xvimage[current_buf]->pitches[2];
            } else
            {
                // YV12
                mpi->planes[1] =
                    xvimage[current_buf]->data +
                    xvimage[current_buf]->offsets[2];
                mpi->planes[2] =
                    xvimage[current_buf]->data +
                    xvimage[current_buf]->offsets[1];
                mpi->stride[1] = xvimage[current_buf]->pitches[2];
                mpi->stride[2] = xvimage[current_buf]->pitches[1];
            }
        }
        mpi->flags |= MP_IMGFLAG_DIRECT;
        mpi->priv = (void *) current_buf;
//      printf("mga: get_image() SUCCESS -> Direct Rendering ENABLED\n");
        return VO_TRUE;
    }
    return VO_FALSE;
}

static int query_format(uint32_t format)
{
    uint32_t i;
    int flag = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_OSD | VFCAP_ACCEPT_STRIDE;       // FIXME! check for DOWN

    /* check image formats */
    for (i = 0; i < formats; i++)
    {
        if (fo[i].id == format)
            return flag;        //xv_format = fo[i].id;
    }
    return 0;
}

static void uninit(void)
{
    int i;

    if (!vo_config_count)
        return;
    visible_buf = -1;
    XvFreeAdaptorInfo(ai);
    ai = NULL;
    if(fo){
        XFree(fo);
        fo=NULL;
    }
    for (i = 0; i < num_buffers; i++)
        deallocate_xvimage(i);
#ifdef HAVE_XF86VM
    vo_vm_close(mDisplay);
#endif
    mp_input_rm_event_fd(ConnectionNumber(mDisplay));
    vo_x11_uninit();
}

static int preinit(const char *arg)
{
    XvPortID xv_p;
    int busy_ports = 0;
    unsigned int i;
    strarg_t ck_src_arg = { 0, NULL };
    strarg_t ck_method_arg = { 0, NULL };

    opt_t subopts[] =
    {  
      /* name         arg type     arg var         test */
      {  "port",      OPT_ARG_INT, &xv_port,       (opt_test_f)int_pos },
      {  "ck",        OPT_ARG_STR, &ck_src_arg,    xv_test_ck },
      {  "ck-method", OPT_ARG_STR, &ck_method_arg, xv_test_ckm },
      {  NULL }
    };

    xv_port = 0;

    /* parse suboptions */
    if ( subopt_parse( arg, subopts ) != 0 )
    {
      return -1;
    }

    /* modify colorkey settings according to the given options */
    xv_setup_colorkeyhandling( ck_method_arg.str, ck_src_arg.str );

    if (!vo_init())
        return -1;

    /* check for Xvideo extension */
    if (Success != XvQueryExtension(mDisplay, &ver, &rel, &req, &ev, &err))
    {
        mp_msg(MSGT_VO, MSGL_ERR,
               MSGTR_LIBVO_XV_XvNotSupportedByX11);
        return -1;
    }

    /* check for Xvideo support */
    if (Success !=
        XvQueryAdaptors(mDisplay, DefaultRootWindow(mDisplay), &adaptors,
                        &ai))
    {
        mp_msg(MSGT_VO, MSGL_ERR, MSGTR_LIBVO_XV_XvQueryAdaptorsFailed);
        return -1;
    }

    /* check adaptors */
    if (xv_port)
    {
        int port_found;

        for (port_found = 0, i = 0; !port_found && i < adaptors; i++)
        {
            if ((ai[i].type & XvInputMask) && (ai[i].type & XvImageMask))
            {
                for (xv_p = ai[i].base_id;
                     xv_p < ai[i].base_id + ai[i].num_ports; ++xv_p)
                {
                    if (xv_p == xv_port)
                    {
                        port_found = 1;
                        break;
                    }
                }
            }
        }
        if (port_found)
        {
            if (XvGrabPort(mDisplay, xv_port, CurrentTime))
                xv_port = 0;
        } else
        {
            mp_msg(MSGT_VO, MSGL_WARN,
                   MSGTR_LIBVO_XV_InvalidPortParameter);
            xv_port = 0;
        }
    }

    for (i = 0; i < adaptors && xv_port == 0; i++)
    {
        if ((ai[i].type & XvInputMask) && (ai[i].type & XvImageMask))
        {
            for (xv_p = ai[i].base_id;
                 xv_p < ai[i].base_id + ai[i].num_ports; ++xv_p)
                if (!XvGrabPort(mDisplay, xv_p, CurrentTime))
                {
                    xv_port = xv_p;
                    break;
                } else
                {
                    mp_msg(MSGT_VO, MSGL_WARN,
                           MSGTR_LIBVO_XV_CouldNotGrabPort, (int) xv_p);
                    ++busy_ports;
                }
        }
    }
    if (!xv_port)
    {
        if (busy_ports)
            mp_msg(MSGT_VO, MSGL_ERR,
                   MSGTR_LIBVO_XV_CouldNotFindFreePort);
        else
            mp_msg(MSGT_VO, MSGL_ERR,
                   MSGTR_LIBVO_XV_NoXvideoSupport);
        return -1;
    }

    if ( !vo_xv_init_colorkey() )
    {
      return -1; // bail out, colorkey setup failed
    }
    vo_xv_enable_vsync();
    vo_xv_get_max_img_dim( &max_width, &max_height );

    fo = XvListImageFormats(mDisplay, xv_port, (int *) &formats);

    mp_input_add_event_fd(ConnectionNumber(mDisplay), check_events);
    return 0;
}

static int control(uint32_t request, void *data, ...)
{
    switch (request)
    {
        case VOCTRL_PAUSE:
            return (int_pause = 1);
        case VOCTRL_RESUME:
            return (int_pause = 0);
        case VOCTRL_QUERY_FORMAT:
            return query_format(*((uint32_t *) data));
        case VOCTRL_GET_IMAGE:
            return get_image(data);
        case VOCTRL_DRAW_IMAGE:
            return draw_image(data);
        case VOCTRL_GUISUPPORT:
            return VO_TRUE;
        case VOCTRL_GET_PANSCAN:
            if (!vo_config_count || !vo_fs)
                return VO_FALSE;
            return VO_TRUE;
        case VOCTRL_FULLSCREEN:
            vo_x11_fullscreen();
            /* indended, fallthrough to update panscan on fullscreen/windowed switch */
        case VOCTRL_SET_PANSCAN:
            if ((vo_fs && (vo_panscan != vo_panscan_amount))
                || (!vo_fs && vo_panscan_amount))
            {
                int old_y = vo_panscan_y;

                panscan_calc();

                if (old_y != vo_panscan_y)
                {
                    vo_x11_clearwindow_part(mDisplay, vo_window,
                                            vo_dwidth + vo_panscan_x - 1,
                                            vo_dheight + vo_panscan_y - 1,
                                            1);
		    vo_xv_draw_colorkey(drwX - (vo_panscan_x >> 1),
					drwY - (vo_panscan_y >> 1),
					vo_dwidth + vo_panscan_x - 1,
					vo_dheight + vo_panscan_y - 1);
                    flip_page();
                }
            }
            return VO_TRUE;
        case VOCTRL_SET_EQUALIZER:
            {
                va_list ap;
                int value;

                va_start(ap, data);
                value = va_arg(ap, int);

                va_end(ap);

                return (vo_xv_set_eq(xv_port, data, value));
            }
        case VOCTRL_GET_EQUALIZER:
            {
                va_list ap;
                int *value;

                va_start(ap, data);
                value = va_arg(ap, int *);

                va_end(ap);

                return (vo_xv_get_eq(xv_port, data, value));
            }
        case VOCTRL_ONTOP:
            vo_x11_ontop();
            return VO_TRUE;
        case VOCTRL_UPDATE_SCREENINFO:
            update_xinerama_info();
            return VO_TRUE;
    }
    return VO_NOTIMPL;
}