vo_dga.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 989 行 · 第 1/3 页

    if (XF86VidModeQueryExtension(mDisplay, &vm_event, &vm_error))
    {
        XF86VidModeQueryVersion(mDisplay, &vm_ver, &vm_rev);
        mp_msg(MSGT_VO, MSGL_INFO,
               "vo_dga: XF86VidMode Extension v%i.%i\n", vm_ver, vm_rev);
        have_vm = 1;
    } else
    {
        mp_msg(MSGT_VO, MSGL_ERR,
               "vo_dga: XF86VidMode Extension not available.\n");
    }

#define GET_VREFRESH(dotclk, x, y)( (((dotclk)/(x))*1000)/(y) )

    if (have_vm)
    {
        int modecount;

        XF86VidModeGetAllModeLines(mDisplay, mScreen, &modecount,
                                   &vo_dga_vidmodes);

        if (vo_dga_vidmodes != NULL)
        {
            for (i = 0; i < modecount; i++)
            {
                if (check_res(i, wanted_width, wanted_height,
                              vo_dga_modes[vo_dga_hw_mode].vdm_depth,
                              vo_dga_vidmodes[i]->hdisplay,
                              vo_dga_vidmodes[i]->vdisplay,
                              GET_VREFRESH(vo_dga_vidmodes[i]->dotclock,
                                           vo_dga_vidmodes[i]->htotal,
                                           vo_dga_vidmodes[i]->vtotal),
                              0, &mX, &mY, &mVBI, &mMaxY))
                    j = i;
            }

            mp_msg(MSGT_VO, MSGL_INFO,
                   "vo_dga: Selected video mode %4d x %4d @ %3d Hz @ depth %2d, bitspp %2d, video %3d x %3d.\n",
                   mX, mY, mVBI,
                   vo_dga_modes[vo_dga_hw_mode].vdm_depth,
                   vo_dga_modes[vo_dga_hw_mode].vdm_bitspp, width, height);
        } else
        {
            mp_msg(MSGT_VO, MSGL_INFO,
                   "vo_dga: XF86VidMode returned no screens - using current resolution.\n");
        }
        dga_modenum = j;
        vo_dga_vp_width = mX;
        vo_dga_vp_height = mY;
    }

#else
    mp_msg(MSGT_VO, MSGL_INFO,
           "vo_dga: Only have DGA 1.0 extension and no XF86VidMode :-(\n");
    mp_msg(MSGT_VO, MSGL_INFO,
           "        Thus, resolution switching is NOT possible.\n");

#endif
#endif

    vo_dga_src_width = width;
    vo_dga_src_height = height;

    if (vo_dga_src_width > vo_dga_vp_width ||
        vo_dga_src_height > vo_dga_vp_height)
    {
        mp_msg(MSGT_VO, MSGL_ERR,
               "vo_dga: Sorry, video larger than viewport is not yet supported!\n");
        // ugly, do something nicer in the future ...
#ifndef HAVE_DGA2
#ifdef HAVE_XF86VM
        if (vo_dga_vidmodes)
        {
            XFree(vo_dga_vidmodes);
            vo_dga_vidmodes = NULL;
        }
#endif
#endif
        return 1;
    }

    if (vo_dga_vp_width == VO_DGA_INVALID_RES)
    {
        mp_msg(MSGT_VO, MSGL_ERR,
               "vo_dga: Something is wrong with your DGA. There doesn't seem to be a\n"
               "         single suitable mode!\n"
               "         Please file a bug report (see DOCS/HTML/en/bugreports.html)\n");
#ifndef HAVE_DGA2
#ifdef HAVE_XF86VM
        if (vo_dga_vidmodes)
        {
            XFree(vo_dga_vidmodes);
            vo_dga_vidmodes = NULL;
        }
#endif
#endif
        return 1;
    }
// now let's start the DGA thing 

    if (!vo_config_count || width != prev_width || height != prev_height)
    {
#ifdef HAVE_DGA2

        if (!XDGAOpenFramebuffer(mDisplay, mScreen))
        {
            mp_msg(MSGT_VO, MSGL_ERR,
                   "vo_dga: Framebuffer mapping failed!!!\n");
            return 1;
        }

        dgadevice = XDGASetMode(mDisplay, mScreen, dga_modenum);
        XDGASync(mDisplay, mScreen);

        vo_dga_base = dgadevice->data;
        XFree(dgadevice);

        XDGASetViewport(mDisplay, mScreen, 0, 0, XDGAFlipRetrace);

#else

#ifdef HAVE_XF86VM
        if (have_vm)
        {
            XF86VidModeLockModeSwitch(mDisplay, mScreen, 0);
            // Two calls are needed to switch modes on my ATI Rage 128. Why?
            // for riva128 one call is enough!
            XF86VidModeSwitchToMode(mDisplay, mScreen,
                                    vo_dga_vidmodes[dga_modenum]);
            XF86VidModeSwitchToMode(mDisplay, mScreen,
                                    vo_dga_vidmodes[dga_modenum]);
        }
#endif

        XF86DGAGetViewPortSize(mDisplay, mScreen,
                               &vo_dga_vp_width, &vo_dga_vp_height);

        XF86DGAGetVideo(mDisplay, mScreen,
                        (char **) &vo_dga_base, &vo_dga_width, &bank,
                        &ram);

        XF86DGADirectVideo(mDisplay, mScreen,
                           XF86DGADirectGraphics | XF86DGADirectMouse |
                           XF86DGADirectKeyb);

        XF86DGASetViewPort(mDisplay, mScreen, 0, 0);

#endif
    }
    // do some more checkings here ...

    mp_msg(MSGT_VO, MSGL_V,
           "vo_dga: bytes/line: %d, screen res: %dx%d, depth: %d, base: %p, bpp: %d\n",
           vo_dga_width, vo_dga_vp_width, vo_dga_vp_height,
           HW_MODE.vdm_bytespp, vo_dga_base, HW_MODE.vdm_bitspp);

    x_off = (vo_dga_vp_width - vo_dga_src_width) >> 1;
    y_off = (vo_dga_vp_height - vo_dga_src_height) >> 1;

    vo_dga_bytes_per_line = vo_dga_src_width * HW_MODE.vdm_bytespp;
    vo_dga_lines = vo_dga_src_height;

    vo_dga_src_offset = 0;
    vo_dga_vp_offset =
        (y_off * vo_dga_width + x_off) * HW_MODE.vdm_bytespp;

    vo_dga_vp_skip = (vo_dga_width - vo_dga_src_width) * HW_MODE.vdm_bytespp;   // todo

    mp_msg(MSGT_VO, MSGL_V, "vo_dga: vp_off=%d, vp_skip=%d, bpl=%d\n",
           vo_dga_vp_offset, vo_dga_vp_skip, vo_dga_bytes_per_line);


    XGrabKeyboard(mDisplay, DefaultRootWindow(mDisplay), True,
                  GrabModeAsync, GrabModeAsync, CurrentTime);
    if (vo_grabpointer)
        XGrabPointer(mDisplay, DefaultRootWindow(mDisplay), True,
                     ButtonPressMask, GrabModeAsync, GrabModeAsync,
                     None, None, CurrentTime);

    if (!vo_config_count || width != prev_width || height != prev_height)
    {
        init_video_buffers(vo_dga_base,
                           vo_dga_vp_height,
                           vo_dga_width * HW_MODE.vdm_bytespp,
#ifdef HAVE_DGA2
                           modeline->maxViewportY,
#else
                           vo_dga_vp_height,
#endif
                           vo_doublebuffering);
        prev_width = width;
        prev_height = height;
    }

    mp_msg(MSGT_VO, MSGL_V, "vo_dga: Using %d frame buffer%s.\n",
           vo_dga_nr_video_buffers,
           vo_dga_nr_video_buffers == 1 ? "" : "s");

    vo_dga_is_running = 1;
    return 0;
}

static int dga_depths_init = 0;

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

    if (!vo_init())
        return -1;              // Can't open X11

    if (dga_depths_init == 0)
    {                           // FIXME!?
        int i;

        vo_dga_XServer_mode = vd_ValidateMode(vo_depthonscreen);

        if (vo_dga_XServer_mode == 0)
        {
#ifndef HAVE_DGA2
            mp_msg(MSGT_VO, MSGL_ERR,
                   "vo_dga: Your X-Server is not running in a ");
            mp_msg(MSGT_VO, MSGL_ERR,
                   "resolution supported by DGA driver!\n");
#endif
        }                       //else{
        //  mp_msg(MSGT_VO, MSGL_V, "vo_dga: X running at: %s\n", 
        //            vd_GetModeString(vo_dga_XServer_mode));
        //}                                

#ifdef HAVE_DGA2
        vo_modelines = XDGAQueryModes(mDisplay, mScreen, &vo_modecount);
        if (vo_modelines)
        {
            for (i = 0; i < vo_modecount; i++)
            {
                mp_msg(MSGT_VO, MSGL_V,
                       "vo_dga: (%03d) depth=%d, bpp=%d, r=%08lx, g=%08lx, b=%08lx, %d x %d\n",
                       i, vo_modelines[i].depth,
                       vo_modelines[i].bitsPerPixel,
                       vo_modelines[i].redMask, vo_modelines[i].greenMask,
                       vo_modelines[i].blueMask,
                       vo_modelines[i].viewportWidth,
                       vo_modelines[i].viewportHeight);
                vd_EnableMode(vo_modelines[i].depth,
                              vo_modelines[i].bitsPerPixel,
                              vo_modelines[i].redMask,
                              vo_modelines[i].greenMask,
                              vo_modelines[i].blueMask);
            }
        }
#endif
        dga_depths_init = 1;

        if (!vo_dga_modes[1].vdm_supported
            && vo_dga_modes[2].vdm_supported)
        {
            vo_dga_modes[1].vdm_supported = 1;
        }

        if (!vo_dga_modes[3].vdm_supported
            && vo_dga_modes[4].vdm_supported)
        {
            vo_dga_modes[3].vdm_supported = 1;
        }

        for (i = 1; i < vo_dga_mode_num; i++)
        {
            mp_msg(MSGT_VO, MSGL_INFO, "vo_dga: Mode: %s",
                   vd_GetModeString(i));
            if (vo_dbpp && vo_dbpp != vo_dga_modes[i].vdm_mplayer_depth)
            {
                vo_dga_modes[i].vdm_supported = 0;
                mp_msg(MSGT_VO, MSGL_INFO, " ...disabled by -bpp %d",
                       vo_dbpp);
            }
            mp_msg(MSGT_VO, MSGL_INFO, "\n");
        }
    }

    return 0;
}

static uint32_t get_image(mp_image_t * mpi)
{
    if (!IMGFMT_IS_BGR(mpi->imgfmt) ||
        (IMGFMT_BGR_DEPTH(mpi->imgfmt) !=
         vo_dga_modes[vo_dga_hw_mode].vdm_mplayer_depth)
        || (mpi->type == MP_IMGTYPE_STATIC && vo_dga_nr_video_buffers > 1)
        || (mpi->type == MP_IMGTYPE_IP && vo_dga_nr_video_buffers < 2)
        || (mpi->type == MP_IMGTYPE_IPB))
        return (VO_FALSE);

    if ((mpi->flags & MP_IMGFLAG_ACCEPT_STRIDE) ||
        (mpi->flags & MP_IMGFLAG_ACCEPT_WIDTH &&
         ((vo_dga_bytes_per_line + vo_dga_vp_skip) % (mpi->bpp / 8)) == 0)
        || (mpi->width * (mpi->bpp / 8) ==
            (vo_dga_bytes_per_line + vo_dga_vp_skip)))
    {

        mpi->planes[0] = CURRENT_VIDEO_BUFFER.data + vo_dga_vp_offset;
        mpi->stride[0] = vo_dga_bytes_per_line + vo_dga_vp_skip;
        mpi->width =
            (vo_dga_bytes_per_line + vo_dga_vp_skip) / (mpi->bpp / 8);
        mpi->flags |= MP_IMGFLAG_DIRECT;
        return (VO_TRUE);
    }

    return (VO_FALSE);
}

static int control(uint32_t request, void *data, ...)
{
    switch (request)
    {
        case VOCTRL_GET_IMAGE:
            return get_image(data);
        case VOCTRL_QUERY_FORMAT:
            return query_format(*((uint32_t *) data));
    }
    return VO_NOTIMPL;
}

//---------------------------------------------------------