vo_x11.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 803 行 · 第 1/2 页

        xswa.background_pixel = 0;
        xswa.border_pixel = 0;
        xswa.colormap = theCmap;
        xswamask = CWBackPixel | CWBorderPixel | CWColormap;

#ifdef HAVE_XF86VM
        if (vm)
        {
            xswa.override_redirect = True;
            xswamask |= CWOverrideRedirect;
        }
#endif

        if (WinID >= 0)
        {
            vo_window = WinID ? ((Window) WinID) : mRootWin;
            if (WinID)
            {
                int border;
                XUnmapWindow(mDisplay, vo_window);
                XChangeWindowAttributes(mDisplay, vo_window, xswamask,
                                        &xswa);
                vo_x11_selectinput_witherr(mDisplay, vo_window,
                                           StructureNotifyMask |
                                           KeyPressMask |
                                           PropertyChangeMask |
                                           PointerMotionMask |
                                           ButtonPressMask |
                                           ButtonReleaseMask |
                                           ExposureMask);
                XMapWindow(mDisplay, vo_window);
                XGetGeometry(mDisplay, vo_window, &mRootWin,
                             &vo_dx, &vo_dy, &vo_dwidth, &vo_dheight,
                             &border, &depth);
            } else
                XSelectInput(mDisplay, vo_window, ExposureMask);
        } else
        {
            vo_x11_create_vo_window(&vinfo, vo_dx, vo_dy, d_width, d_height,
                    flags, theCmap, "x11", title);
        }

        XSync(mDisplay, False);

        vo_x11_selectinput_witherr(mDisplay, vo_window,
                                   StructureNotifyMask | KeyPressMask |
                                   PropertyChangeMask | ExposureMask |
                                   ((WinID ==
                                     0) ? 0 : (ButtonPressMask |
                                               ButtonReleaseMask |
                                               PointerMotionMask)));

#ifdef HAVE_XF86VM
        if (vm)
        {
            /* Grab the mouse pointer in our window */
            if (vo_grabpointer)
                XGrabPointer(mDisplay, vo_window, True, 0,
                             GrabModeAsync, GrabModeAsync,
                             vo_window, None, CurrentTime);
            XSetInputFocus(mDisplay, vo_window, RevertToNone, CurrentTime);
        }
#endif
    }

    if (vo_gc != None)
        XFreeGC(mDisplay, vo_gc);
    vo_gc = XCreateGC(mDisplay, vo_window, 0L, &xgcv);

    if (myximage)
    {
        freeMyXImage();
        sws_freeContext(swsContext);
    }
    getMyXImage();

    if (!WinID)
    {
        vo_dwidth = vo_screenwidth;
        vo_dheight = vo_screenheight;
    }

    while (fmte->mpfmt) {
      if (IMGFMT_RGB_DEPTH(fmte->mpfmt) == myximage->bits_per_pixel &&
          fmte->byte_order == myximage->byte_order &&
          fmte->red_mask   == myximage->red_mask   &&
          fmte->green_mask == myximage->green_mask &&
          fmte->blue_mask  == myximage->blue_mask)
        break;
      fmte++;
    }
    if (!fmte->mpfmt) {
      mp_msg(MSGT_VO, MSGL_ERR,
             "X server image format not supported, please contact the developers\n");
      return -1;
    }
    out_format = fmte->mpfmt;
    switch ((bpp = myximage->bits_per_pixel))
    {
        case 24:
            draw_alpha_fnc = draw_alpha_24;
            break;
        case 32:
            draw_alpha_fnc = draw_alpha_32;
            break;
        case 15:
        case 16:
            if (depth == 15)
                draw_alpha_fnc = draw_alpha_15;
            else
                draw_alpha_fnc = draw_alpha_16;
            break;
        default:
            draw_alpha_fnc = draw_alpha_null;
    }
    out_offset = 0;
    // for these formats conversion is currently not support and
    // we can easily "emulate" them.
    if (out_format & 64 && (IMGFMT_IS_RGB(out_format) || IMGFMT_IS_BGR(out_format))) {
      out_format &= ~64;
#ifdef WORDS_BIGENDIAN
      out_offset = 1;
#else
      out_offset = -1;
#endif
    }

    /* always allocate swsContext as size could change between frames */
    swsContext =
        sws_getContextFromCmdLine(width, height, in_format, width, height,
                                  out_format);
    if (!swsContext)
        return -1;

    dst_width = width;
    //printf( "X11 bpp: %d  color mask:  R:%lX  G:%lX  B:%lX\n",bpp,myximage->red_mask,myximage->green_mask,myximage->blue_mask );

    if (vo_ontop)
        vo_x11_setlayer(mDisplay, vo_window, vo_ontop);

    return 0;
}

static void Display_Image(XImage * myximage, uint8_t * ImageData)
{
    myximage->data += out_offset;
#ifdef HAVE_SHM
    if (Shmem_Flag)
    {
        XShmPutImage(mDisplay, vo_window, vo_gc, myximage,
                     0, 0,
                     (vo_dwidth - dst_width) / 2,
                     (vo_dheight - myximage->height) / 2, dst_width,
                     myximage->height, True);
    } else
#endif
    {
        XPutImage(mDisplay, vo_window, vo_gc, myximage,
                  0, 0,
                  (vo_dwidth - dst_width) / 2,
                  (vo_dheight - myximage->height) / 2, dst_width,
                  myximage->height);
    }
    myximage->data -= out_offset;
}

static void draw_osd(void)
{
    vo_draw_text(image_width, image_height, draw_alpha_fnc);
}

static void flip_page(void)
{
    Display_Image(myximage, ImageData);
    XSync(mDisplay, False);
}

static int draw_slice(uint8_t * src[], int stride[], int w, int h,
                           int x, int y)
{
    uint8_t *dst[3];
    int dstStride[3];

    if ((old_vo_dwidth != vo_dwidth
         || old_vo_dheight != vo_dheight) /*&& y==0 */  && zoomFlag)
    {
        int newW = vo_dwidth;
        int newH = vo_dheight;
        int newAspect = (newW * (1 << 16) + (newH >> 1)) / newH;
        struct SwsContext *oldContext = swsContext;

        if (newAspect > aspect)
            newW = (newH * aspect + (1 << 15)) >> 16;
        else
            newH = ((newW << 16) + (aspect >> 1)) / aspect;

        old_vo_dwidth = vo_dwidth;
        old_vo_dheight = vo_dheight;

        if (sws_flags == 0)
            newW &= (~31);      // not needed but, if the user wants the FAST_BILINEAR SCALER, then its needed

        swsContext = sws_getContextFromCmdLine(srcW, srcH, in_format,
                                               newW, newH, out_format);
        if (swsContext)
        {
            image_width = (newW + 7) & (~7);
            image_height = newH;

            freeMyXImage();
            getMyXImage();
            sws_freeContext(oldContext);
        } else
        {
            swsContext = oldContext;
        }
        dst_width = newW;
    }
    dstStride[1] = dstStride[2] = 0;
    dst[1] = dst[2] = NULL;

    dstStride[0] = image_width * ((bpp + 7) / 8);
    dst[0] = ImageData;
    if (Flip_Flag)
    {
        dst[0] += dstStride[0] * (image_height - 1);
        dstStride[0] = -dstStride[0];
    }
    sws_scale_ordered(swsContext, src, stride, y, h, dst, dstStride);
    return 0;
}

static int draw_frame(uint8_t * src[])
{
#if 0
    int stride[3] = { 0, 0, 0 };

    if (in_format == IMGFMT_YUY2)
        stride[0] = srcW * 2;
    else if (in_format == IMGFMT_BGR8)
        stride[0] = srcW;
    else if (in_format == IMGFMT_BGR15)
        stride[0] = srcW * 2;
    else if (in_format == IMGFMT_BGR16)
        stride[0] = srcW * 2;
    else if (in_format == IMGFMT_BGR24)
        stride[0] = srcW * 3;
    else if (in_format == IMGFMT_BGR32)
        stride[0] = srcW * 4;

    return draw_slice(src, stride, srcW, srcH, 0, 0);
#else
    mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_X11_DrawFrameCalled);
    return -1;
#endif
}

static uint32_t get_image(mp_image_t * mpi)
{
    if (zoomFlag ||
        !IMGFMT_IS_BGR(mpi->imgfmt) ||
        (IMGFMT_BGR_DEPTH(mpi->imgfmt) != vo_depthonscreen) ||
        ((mpi->type != MP_IMGTYPE_STATIC)
         && (mpi->type != MP_IMGTYPE_TEMP))
        || (mpi->flags & MP_IMGFLAG_PLANAR)
        || (mpi->flags & MP_IMGFLAG_YUV) || (mpi->width != image_width)
        || (mpi->height != image_height))
        return (VO_FALSE);

    if (Flip_Flag)
    {
        mpi->stride[0] = -image_width * ((bpp + 7) / 8);
        mpi->planes[0] = ImageData - mpi->stride[0] * (image_height - 1);
    } else
    {
        mpi->stride[0] = image_width * ((bpp + 7) / 8);
        mpi->planes[0] = ImageData;
    }
    mpi->flags |= MP_IMGFLAG_DIRECT;

    return (VO_TRUE);
}

static int query_format(uint32_t format)
{
    mp_msg(MSGT_VO, MSGL_DBG2,
           "vo_x11: query_format was called: %x (%s)\n", format,
           vo_format_name(format));
    if (IMGFMT_IS_BGR(format))
    {
        if (IMGFMT_BGR_DEPTH(format) <= 8)
            return 0;           // TODO 8bpp not yet fully implemented
        if (IMGFMT_BGR_DEPTH(format) == vo_depthonscreen)
            return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD | VFCAP_SWSCALE | VFCAP_FLIP |
                VFCAP_ACCEPT_STRIDE;
        else
            return VFCAP_CSP_SUPPORTED | VFCAP_OSD | VFCAP_SWSCALE | VFCAP_FLIP |
                VFCAP_ACCEPT_STRIDE;
    }

    switch (format)
    {
//   case IMGFMT_BGR8:  
//   case IMGFMT_BGR15:
//   case IMGFMT_BGR16:
//   case IMGFMT_BGR24:
//   case IMGFMT_BGR32:
//    return 0x2;
//   case IMGFMT_YUY2: 
        case IMGFMT_I420:
        case IMGFMT_IYUV:
        case IMGFMT_YV12:
            return VFCAP_CSP_SUPPORTED | VFCAP_OSD | VFCAP_SWSCALE | VFCAP_ACCEPT_STRIDE;
    }
    return 0;
}


static void uninit(void)
{
    if (!myximage)
        return;

    freeMyXImage();

#ifdef HAVE_XF86VM
    vo_vm_close(mDisplay);
#endif

    zoomFlag = 0;
    vo_x11_uninit();

    sws_freeContext(swsContext);
}

static int preinit(const char *arg)
{
    if (arg)
    {
        mp_msg(MSGT_VO, MSGL_ERR, "vo_x11: Unknown subdevice: %s\n", arg);
        return ENOSYS;
    }

    if (!vo_init())
        return -1;              // Can't open X11
    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_GUISUPPORT:
            return VO_TRUE;
        case VOCTRL_GET_IMAGE:
            return get_image(data);
        case VOCTRL_SET_EQUALIZER:
            {
                va_list ap;
                int value;

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

                va_end(ap);
                return vo_x11_set_equalizer(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_x11_get_equalizer(data, value);
            }
        case VOCTRL_ONTOP:
            vo_x11_ontop();
            return VO_TRUE;
        case VOCTRL_FULLSCREEN:
            {
                vo_x11_fullscreen();
                vo_x11_clearwindow(mDisplay, vo_window);
            }
            return VO_TRUE;
        case VOCTRL_UPDATE_SCREENINFO:
            update_xinerama_info();
            return VO_TRUE;
    }
    return VO_NOTIMPL;
}