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

#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#include <signal.h>

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"


#include <X11/Xlib.h>
#include <X11/Xutil.h>

#ifdef HAVE_XF86VM
#include <X11/extensions/xf86vmode.h>
#endif
#include <errno.h>

#include "x11_common.h"

#ifdef HAVE_SHM
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>

static int Shmem_Flag;

//static int Quiet_Flag;  Here also what is this for. It's used but isn't inited ?
static XShmSegmentInfo Shminfo[1];
static int gXErrorFlag;
static int CompletionType = -1;

/* since it doesn't seem to be defined on some platforms */
int XShmGetEventBase(Display *);
#endif

#include "sub.h"

#include "libswscale/swscale.h"
#include "libmpcodecs/vf_scale.h"
#define MODE_RGB  0x1
#define MODE_BGR  0x2

#include "mp_msg.h"
#include "help_mp.h"

#ifdef HAVE_NEW_GUI
#include "gui/interface.h"
#include "mplayer.h"
#endif

static vo_info_t info = {
    "X11 ( XImage/Shm )",
    "x11",
    "Aaron Holtzman <[e-mail]>",
    ""
};

LIBVO_EXTERN(x11)
/* private prototypes */
static void Display_Image(XImage * myximage, unsigned char *ImageData);
static void (*draw_alpha_fnc) (int x0, int y0, int w, int h,
                               unsigned char *src, unsigned char *srca,
                               int stride);

/* local data */
static unsigned char *ImageData;
//! original unaligned pointer for free
static unsigned char *ImageDataOrig;

/* X11 related variables */
static XImage *myximage = NULL;
static int depth, bpp;
static XWindowAttributes attribs;

static int int_pause;

static int Flip_Flag;
static int zoomFlag;


static uint32_t image_width;
static uint32_t image_height;
static uint32_t in_format;
static uint32_t out_format = 0;
static int out_offset;
static int srcW = -1;
static int srcH = -1;
static int aspect;              // 1<<16 based fixed point aspect, so that the aspect stays correct during resizing

static int old_vo_dwidth = -1;
static int old_vo_dheight = -1;

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

    /* clear left over borders and redraw frame if we are paused */
    if (ret & VO_EVENT_EXPOSE && int_pause)
    {
        vo_x11_clearwindow_part(mDisplay, vo_window, myximage->width,
                                myximage->height, 0);
        flip_page();
    } else if ((ret & VO_EVENT_RESIZE) || (ret & VO_EVENT_EXPOSE))
        vo_x11_clearwindow_part(mDisplay, vo_window, myximage->width,
                                myximage->height, 0);

}

static void draw_alpha_32(int x0, int y0, int w, int h, unsigned char *src,
                          unsigned char *srca, int stride)
{
    vo_draw_alpha_rgb32(w, h, src, srca, stride,
                        ImageData + 4 * (y0 * image_width + x0),
                        4 * image_width);
}

static void draw_alpha_24(int x0, int y0, int w, int h, unsigned char *src,
                          unsigned char *srca, int stride)
{
    vo_draw_alpha_rgb24(w, h, src, srca, stride,
                        ImageData + 3 * (y0 * image_width + x0),
                        3 * image_width);
}

static void draw_alpha_16(int x0, int y0, int w, int h, unsigned char *src,
                          unsigned char *srca, int stride)
{
    vo_draw_alpha_rgb16(w, h, src, srca, stride,
                        ImageData + 2 * (y0 * image_width + x0),
                        2 * image_width);
}

static void draw_alpha_15(int x0, int y0, int w, int h, unsigned char *src,
                          unsigned char *srca, int stride)
{
    vo_draw_alpha_rgb15(w, h, src, srca, stride,
                        ImageData + 2 * (y0 * image_width + x0),
                        2 * image_width);
}

static void draw_alpha_null(int x0, int y0, int w, int h,
                            unsigned char *src, unsigned char *srca,
                            int stride)
{
}

static struct SwsContext *swsContext = NULL;
static int dst_width;
extern int sws_flags;

static XVisualInfo vinfo;

static void getMyXImage(void)
{
#ifdef HAVE_SHM
    if (mLocalDisplay && XShmQueryExtension(mDisplay))
        Shmem_Flag = 1;
    else
    {
        Shmem_Flag = 0;
        mp_msg(MSGT_VO, MSGL_WARN,
               "Shared memory not supported\nReverting to normal Xlib\n");
    }
    if (Shmem_Flag)
        CompletionType = XShmGetEventBase(mDisplay) + ShmCompletion;

    if (Shmem_Flag)
    {
        myximage =
            XShmCreateImage(mDisplay, vinfo.visual, depth, ZPixmap, NULL,
                            &Shminfo[0], image_width, image_height);
        if (myximage == NULL)
        {
            mp_msg(MSGT_VO, MSGL_WARN,
                   "Shared memory error,disabling ( Ximage error )\n");
            goto shmemerror;
        }
        Shminfo[0].shmid = shmget(IPC_PRIVATE,
                                  myximage->bytes_per_line *
                                  myximage->height, IPC_CREAT | 0777);
        if (Shminfo[0].shmid < 0)
        {
            XDestroyImage(myximage);
            mp_msg(MSGT_VO, MSGL_V, "%s\n", strerror(errno));
            //perror( strerror( errno ) );
            mp_msg(MSGT_VO, MSGL_WARN,
                   "Shared memory error,disabling ( seg id error )\n");
            goto shmemerror;
        }
        Shminfo[0].shmaddr = (char *) shmat(Shminfo[0].shmid, 0, 0);

        if (Shminfo[0].shmaddr == ((char *) -1))
        {
            XDestroyImage(myximage);
            if (Shminfo[0].shmaddr != ((char *) -1))
                shmdt(Shminfo[0].shmaddr);
            mp_msg(MSGT_VO, MSGL_WARN,
                   "Shared memory error,disabling ( address error )\n");
            goto shmemerror;
        }
        myximage->data = Shminfo[0].shmaddr;
        ImageData = (unsigned char *) myximage->data;
        Shminfo[0].readOnly = False;
        XShmAttach(mDisplay, &Shminfo[0]);

        XSync(mDisplay, False);

        if (gXErrorFlag)
        {
            XDestroyImage(myximage);
            shmdt(Shminfo[0].shmaddr);
            mp_msg(MSGT_VO, MSGL_WARN, "Shared memory error,disabling.\n");
            gXErrorFlag = 0;
            goto shmemerror;
        } else
            shmctl(Shminfo[0].shmid, IPC_RMID, 0);

        {
            static int firstTime = 1;

            if (firstTime)
            {
                mp_msg(MSGT_VO, MSGL_V, "Sharing memory.\n");
                firstTime = 0;
            }
        }
    } else
    {
      shmemerror:
        Shmem_Flag = 0;
#endif
        myximage = XCreateImage(mDisplay, vinfo.visual, depth, ZPixmap,
                             0, NULL, image_width, image_height, 8, 0);
        ImageDataOrig = malloc(myximage->bytes_per_line * image_height + 32);
        myximage->data = ImageDataOrig + 16 - ((long)ImageDataOrig & 15);
        memset(myximage->data, 0, myximage->bytes_per_line * image_height);
        ImageData = myximage->data;
#ifdef HAVE_SHM
    }
#endif
}

static void freeMyXImage(void)
{
#ifdef HAVE_SHM
    if (Shmem_Flag)
    {
        XShmDetach(mDisplay, &Shminfo[0]);
        XDestroyImage(myximage);
        shmdt(Shminfo[0].shmaddr);
    } else
#endif
    {
        myximage->data = ImageDataOrig;
        XDestroyImage(myximage);
        ImageDataOrig = NULL;
    }
    myximage = NULL;
    ImageData = NULL;
}

#ifdef WORDS_BIGENDIAN
#define BO_NATIVE    MSBFirst
#define BO_NONNATIVE LSBFirst
#else
#define BO_NATIVE    LSBFirst
#define BO_NONNATIVE MSBFirst
#endif
struct fmt2Xfmtentry_s {
  uint32_t mpfmt;
  int byte_order;
  unsigned red_mask;
  unsigned green_mask;
  unsigned blue_mask;
} fmt2Xfmt[] = {
  {IMGFMT_RGB8,  BO_NATIVE,    0x00000007, 0x00000038, 0x000000C0},
  {IMGFMT_RGB8,  BO_NONNATIVE, 0x00000007, 0x00000038, 0x000000C0},
  {IMGFMT_BGR8,  BO_NATIVE,    0x000000E0, 0x0000001C, 0x00000003},
  {IMGFMT_BGR8,  BO_NONNATIVE, 0x000000E0, 0x0000001C, 0x00000003},
  {IMGFMT_RGB15, BO_NATIVE,    0x0000001F, 0x000003E0, 0x00007C00},
  {IMGFMT_BGR15, BO_NATIVE,    0x00007C00, 0x000003E0, 0x0000001F},
  {IMGFMT_RGB16, BO_NATIVE,    0x0000001F, 0x000007E0, 0x0000F800},
  {IMGFMT_BGR16, BO_NATIVE,    0x0000F800, 0x000007E0, 0x0000001F},
  {IMGFMT_RGB24, MSBFirst,     0x00FF0000, 0x0000FF00, 0x000000FF},
  {IMGFMT_RGB24, LSBFirst,     0x000000FF, 0x0000FF00, 0x00FF0000},
  {IMGFMT_BGR24, MSBFirst,     0x000000FF, 0x0000FF00, 0x00FF0000},
  {IMGFMT_BGR24, LSBFirst,     0x00FF0000, 0x0000FF00, 0x000000FF},
  {IMGFMT_RGB32, BO_NATIVE,    0x000000FF, 0x0000FF00, 0x00FF0000},
  {IMGFMT_RGB32, BO_NONNATIVE, 0xFF000000, 0x00FF0000, 0x0000FF00},
  {IMGFMT_BGR32, BO_NATIVE,    0x00FF0000, 0x0000FF00, 0x000000FF},
  {IMGFMT_BGR32, BO_NONNATIVE, 0x0000FF00, 0x00FF0000, 0xFF000000},
  {IMGFMT_ARGB,  MSBFirst,     0x00FF0000, 0x0000FF00, 0x000000FF},
  {IMGFMT_ARGB,  LSBFirst,     0x0000FF00, 0x00FF0000, 0xFF000000},
  {IMGFMT_ABGR,  MSBFirst,     0x000000FF, 0x0000FF00, 0x00FF0000},
  {IMGFMT_ABGR,  LSBFirst,     0xFF000000, 0x00FF0000, 0x0000FF00},
  {IMGFMT_RGBA,  MSBFirst,     0xFF000000, 0x00FF0000, 0x0000FF00},
  {IMGFMT_RGBA,  LSBFirst,     0x000000FF, 0x0000FF00, 0x00FF0000},
  {IMGFMT_BGRA,  MSBFirst,     0x0000FF00, 0x00FF0000, 0xFF000000},
  {IMGFMT_BGRA,  LSBFirst,     0x00FF0000, 0x0000FF00, 0x000000FF},
  {0, 0, 0, 0, 0}
};

static int config(uint32_t width, uint32_t height, uint32_t d_width,
                       uint32_t d_height, uint32_t flags, char *title,
                       uint32_t format)
{
// int screen;
    int fullscreen = 0;
    int vm = 0;

// int interval, prefer_blank, allow_exp, nothing;
    unsigned int fg, bg;
    XGCValues xgcv;
    Colormap theCmap;
    XSetWindowAttributes xswa;
    unsigned long xswamask;
    struct fmt2Xfmtentry_s *fmte = fmt2Xfmt;

#ifdef HAVE_XF86VM
    unsigned int modeline_width, modeline_height;
    static uint32_t vm_width;
    static uint32_t vm_height;
#endif

    vo_mouse_autohide = 1;
    old_vo_dwidth = -1;
    old_vo_dheight = -1;

    if (!title)
        title = "MPlayer X11 (XImage/Shm) render";

    in_format = format;
    srcW = width;
    srcH = height;

    if (flags & (VOFLAG_FULLSCREEN|VOFLAG_MODESWITCHING))
        fullscreen = 1;
    if (flags & VOFLAG_MODESWITCHING)
        vm = 1;
    if (flags & VOFLAG_FLIPPING)
        Flip_Flag = 1;
    zoomFlag = flags & VOFLAG_SWSCALE;

    int_pause = 0;
// if(!fullscreen) zoomFlag=1; //it makes no sense to avoid zooming on windowd mode

//printf( "w: %d h: %d\n\n",vo_dwidth,vo_dheight );

    XGetWindowAttributes(mDisplay, mRootWin, &attribs);
    depth = attribs.depth;

    if (depth != 15 && depth != 16 && depth != 24 && depth != 32)
    {
        Visual *visual;

        depth = vo_find_depth_from_visuals(mDisplay, mScreen, &visual);
    }
    if (!XMatchVisualInfo(mDisplay, mScreen, depth, DirectColor, &vinfo) ||
        (WinID > 0
         && vinfo.visualid != XVisualIDFromVisual(attribs.visual)))
        XMatchVisualInfo(mDisplay, mScreen, depth, TrueColor, &vinfo);

    /* set image size (which is indeed neither the input nor output size), 
       if zoom is on it will be changed during draw_slice anyway so we don't duplicate the aspect code here 
     */
    image_width = (width + 7) & (~7);
    image_height = height;

    aspect = ((1 << 16) * d_width + d_height / 2) / d_height;

#ifdef HAVE_NEW_GUI
    if (use_gui)
        guiGetEvent(guiSetShVideo, 0);  // the GUI will set up / resize the window
    else
#endif
    {
#ifdef HAVE_XF86VM
        if (vm)
        {
            if ((d_width == 0) && (d_height == 0))
            {
                vm_width = image_width;
                vm_height = image_height;
            } else
            {
                vm_width = d_width;
                vm_height = d_height;
            }
            vo_vm_switch(vm_width, vm_height, &modeline_width,
                         &modeline_height);
            vo_dx = (vo_screenwidth - modeline_width) / 2;
            vo_dy = (vo_screenheight - modeline_height) / 2;
            vo_dwidth = modeline_width;
            vo_dheight = modeline_height;
        }
#endif
        bg = WhitePixel(mDisplay, mScreen);
        fg = BlackPixel(mDisplay, mScreen);

        theCmap = vo_x11_create_colormap(&vinfo);