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

/* vo_xv.c, X11 Xv interface */

// Number of buffers _FOR_DOUBLEBUFFERING_MODE_
// Use option -double to enable double buffering! (default: single buffer)
#define NUM_BUFFERS 3

/*
Buffer allocation:

-nodr:
  1: TEMP
  2: 2*TEMP

-dr:
  1: TEMP
  3: 2*STATIC+TEMP
*/

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

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


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

#include "x11_common.h"

#include "fastmemcpy.h"
#include "sub.h"
#include "aspect.h"

#include "subopt-helper.h"

#include "input/input.h"

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

#include "libavutil/common.h"

static vo_info_t info = {
    "X11/Xv",
    "xv",
    "Gerd Knorr <[e-mail]> and others",
    ""
};

LIBVO_EXTERN(xv)
#ifdef HAVE_SHM
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>

static XShmSegmentInfo Shminfo[NUM_BUFFERS];
static int Shmem_Flag;
#endif

// Note: depends on the inclusion of X11/extensions/XShm.h
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>

// FIXME: dynamically allocate this stuff
static void allocate_xvimage(int);
static unsigned int ver, rel, req, ev, err;
static unsigned int formats, adaptors, xv_format;
static XvAdaptorInfo *ai = NULL;
static XvImageFormatValues *fo=NULL;

static int current_buf = 0;
static int current_ip_buf = 0;
static int num_buffers = 1;     // default
static int visible_buf = -1;    // -1 means: no buffer was drawn yet
static XvImage *xvimage[NUM_BUFFERS];


static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_format;
static int flip_flag;

static int int_pause;

static Window mRoot;
static uint32_t drwX, drwY, drwBorderWidth, drwDepth;
static uint32_t max_width = 0, max_height = 0; // zero means: not set

static void (*draw_alpha_fnc) (int x0, int y0, int w, int h,
                               unsigned char *src, unsigned char *srca,
                               int stride);

static void draw_alpha_yv12(int x0, int y0, int w, int h,
                            unsigned char *src, unsigned char *srca,
                            int stride)
{
    x0 += image_width * (vo_panscan_x >> 1) / (vo_dwidth + vo_panscan_x);
    vo_draw_alpha_yv12(w, h, src, srca, stride,
                       xvimage[current_buf]->data +
                       xvimage[current_buf]->offsets[0] +
                       xvimage[current_buf]->pitches[0] * y0 + x0,
                       xvimage[current_buf]->pitches[0]);
}

static void draw_alpha_yuy2(int x0, int y0, int w, int h,
                            unsigned char *src, unsigned char *srca,
                            int stride)
{
    x0 += image_width * (vo_panscan_x >> 1) / (vo_dwidth + vo_panscan_x);
    vo_draw_alpha_yuy2(w, h, src, srca, stride,
                       xvimage[current_buf]->data +
                       xvimage[current_buf]->offsets[0] +
                       xvimage[current_buf]->pitches[0] * y0 + 2 * x0,
                       xvimage[current_buf]->pitches[0]);
}

static void draw_alpha_uyvy(int x0, int y0, int w, int h,
                            unsigned char *src, unsigned char *srca,
                            int stride)
{
    x0 += image_width * (vo_panscan_x >> 1) / (vo_dwidth + vo_panscan_x);
    vo_draw_alpha_yuy2(w, h, src, srca, stride,
                       xvimage[current_buf]->data +
                       xvimage[current_buf]->offsets[0] +
                       xvimage[current_buf]->pitches[0] * y0 + 2 * x0 + 1,
                       xvimage[current_buf]->pitches[0]);
}

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


static void deallocate_xvimage(int foo);

static void calc_drwXY(uint32_t *drwX, uint32_t *drwY) {
  *drwX = *drwY = 0;
  if (vo_fs) {
    aspect(&vo_dwidth, &vo_dheight, A_ZOOM);
    vo_dwidth = FFMIN(vo_dwidth, vo_screenwidth);
    vo_dheight = FFMIN(vo_dheight, vo_screenheight);
    *drwX = (vo_screenwidth - vo_dwidth) / 2;
    *drwY = (vo_screenheight - vo_dheight) / 2;
    mp_msg(MSGT_VO, MSGL_V, "[xv-fs] dx: %d dy: %d dw: %d dh: %d\n",
           *drwX, *drwY, vo_dwidth, vo_dheight);
  } else if (WinID == 0) {
    *drwX = vo_dx;
    *drwY = vo_dy;
  }
}

/*
 * connect to server, create and map window,
 * allocate colors and (shared) memory
 */
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)
{
    XSizeHints hint;
    XVisualInfo vinfo;
    XGCValues xgcv;
    XSetWindowAttributes xswa;
    XWindowAttributes attribs;
    unsigned long xswamask;
    int depth;

#ifdef HAVE_XF86VM
    int vm = 0;
    unsigned int modeline_width, modeline_height;
    static uint32_t vm_width;
    static uint32_t vm_height;
#endif

    image_height = height;
    image_width = width;
    image_format = format;

    if ((max_width != 0 && max_height != 0) &&
        (image_width > max_width || image_height > max_height))
    {
        mp_msg( MSGT_VO, MSGL_ERR, MSGTR_VO_XV_ImagedimTooHigh,
                image_width, image_height, max_width, max_height);
        return -1;
    }

    vo_mouse_autohide = 1;

    int_pause = 0;
    visible_buf = -1;

#ifdef HAVE_XF86VM
    if (flags & VOFLAG_MODESWITCHING)
        vm = 1;
#endif
    flip_flag = flags & VOFLAG_FLIPPING;
    num_buffers =
        vo_doublebuffering ? (vo_directrendering ? NUM_BUFFERS : 2) : 1;

    /* check image formats */
    {
        unsigned int i;

        xv_format = 0;
        for (i = 0; i < formats; i++)
        {
            mp_msg(MSGT_VO, MSGL_V,
                   "Xvideo image format: 0x%x (%4.4s) %s\n", fo[i].id,
                   (char *) &fo[i].id,
                   (fo[i].format == XvPacked) ? "packed" : "planar");
            if (fo[i].id == format)
                xv_format = fo[i].id;
        }
        if (!xv_format)
            return -1;
    }

#ifdef HAVE_NEW_GUI
    if (use_gui)
        guiGetEvent(guiSetShVideo, 0);  // let the GUI to setup/resize our window
    else
#endif
    {
        hint.x = vo_dx;
        hint.y = vo_dy;
        hint.width = d_width;
        hint.height = d_height;
#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);
            hint.x = (vo_screenwidth - modeline_width) / 2;
            hint.y = (vo_screenheight - modeline_height) / 2;
            hint.width = modeline_width;
            hint.height = modeline_height;
            aspect_save_screenres(modeline_width, modeline_height);
        } else
#endif
        hint.flags = PPosition | PSize /* | PBaseSize */ ;
        hint.base_width = hint.width;
        hint.base_height = hint.height;
        XGetWindowAttributes(mDisplay, DefaultRootWindow(mDisplay),
                             &attribs);
        depth = attribs.depth;
        if (depth != 15 && depth != 16 && depth != 24 && depth != 32)
            depth = 24;
        XMatchVisualInfo(mDisplay, mScreen, depth, TrueColor, &vinfo);

        xswa.background_pixel = 0;
        if (xv_ck_info.method == CK_METHOD_BACKGROUND)
        {
          xswa.background_pixel = xv_colorkey;
        }
        xswa.border_pixel = 0;
        xswamask = CWBackPixel | CWBorderPixel;

        if (WinID >= 0)
        {
            vo_window = WinID ? ((Window) WinID) : mRootWin;
            if (WinID)
            {
                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, &mRoot,
                             &drwX, &drwY, &vo_dwidth, &vo_dheight,
                             &drwBorderWidth, &drwDepth);
                if (vo_dwidth <= 0) vo_dwidth = d_width;
                if (vo_dheight <= 0) vo_dheight = d_height;
                aspect_save_prescale(vo_dwidth, vo_dheight);
            }
        } else
        {
            vo_x11_create_vo_window(&vinfo, vo_dx, vo_dy, d_width, d_height,
                   flags, CopyFromParent, "xv", title);
            XChangeWindowAttributes(mDisplay, vo_window, xswamask, &xswa);
        }

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

    mp_msg(MSGT_VO, MSGL_V, "using Xvideo port %d for hw scaling\n",
           xv_port);

    switch (xv_format)
    {
        case IMGFMT_YV12:
        case IMGFMT_I420:
        case IMGFMT_IYUV:
            draw_alpha_fnc = draw_alpha_yv12;
            break;
        case IMGFMT_YUY2:
        case IMGFMT_YVYU:
            draw_alpha_fnc = draw_alpha_yuy2;
            break;
        case IMGFMT_UYVY:
            draw_alpha_fnc = draw_alpha_uyvy;
            break;
        default:
            draw_alpha_fnc = draw_alpha_null;
    }

    if (vo_config_count)
        for (current_buf = 0; current_buf < num_buffers; ++current_buf)
            deallocate_xvimage(current_buf);

    for (current_buf = 0; current_buf < num_buffers; ++current_buf)
        allocate_xvimage(current_buf);

    current_buf = 0;
    current_ip_buf = 0;

#if 0
    set_gamma_correction();
#endif

    aspect(&vo_dwidth, &vo_dheight, A_NOZOOM);
    if ((flags & VOFLAG_FULLSCREEN) && WinID <= 0) vo_fs = 1;
    calc_drwXY(&drwX, &drwY);

    panscan_calc();
    
    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 0
#ifdef HAVE_SHM
    if (Shmem_Flag)
    {
        XvShmPutImage(mDisplay, xv_port, vo_window, vo_gc,
                      xvimage[current_buf], 0, 0, image_width,
                      image_height, drwX, drwY, 1, 1, False);
        XvShmPutImage(mDisplay, xv_port, vo_window, vo_gc,
                      xvimage[current_buf], 0, 0, image_width,
                      image_height, drwX, drwY, vo_dwidth,
                      (vo_fs ? vo_dheight - 1 : vo_dheight), False);
    } else
#endif
    {
        XvPutImage(mDisplay, xv_port, vo_window, vo_gc,
                   xvimage[current_buf], 0, 0, image_width, image_height,
                   drwX, drwY, 1, 1);
        XvPutImage(mDisplay, xv_port, vo_window, vo_gc,
                   xvimage[current_buf], 0, 0, image_width, image_height,
                   drwX, drwY, vo_dwidth,
                   (vo_fs ? vo_dheight - 1 : vo_dheight));
    }
#endif

    mp_msg(MSGT_VO, MSGL_V, "[xv] dx: %d dy: %d dw: %d dh: %d\n", drwX,
           drwY, vo_dwidth, vo_dheight);

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

    return 0;
}

static void allocate_xvimage(int foo)
{
    /*
     * allocate XvImages.  FIXME: no error checking, without
     * mit-shm this will bomb... trzing to fix ::atmos
     */
#ifdef HAVE_SHM
    if (mLocalDisplay && XShmQueryExtension(mDisplay))
        Shmem_Flag = 1;
    else
    {
        Shmem_Flag = 0;
        mp_msg(MSGT_VO, MSGL_INFO,
               MSGTR_LIBVO_XV_SharedMemoryNotSupported);
    }
    if (Shmem_Flag)
    {
        xvimage[foo] =
            (XvImage *) XvShmCreateImage(mDisplay, xv_port, xv_format,
                                         NULL, image_width, image_height,
                                         &Shminfo[foo]);

        Shminfo[foo].shmid =
            shmget(IPC_PRIVATE, xvimage[foo]->data_size, IPC_CREAT | 0777);
        Shminfo[foo].shmaddr = (char *) shmat(Shminfo[foo].shmid, 0, 0);
        Shminfo[foo].readOnly = False;

        xvimage[foo]->data = Shminfo[foo].shmaddr;
        XShmAttach(mDisplay, &Shminfo[foo]);
        XSync(mDisplay, False);
        shmctl(Shminfo[foo].shmid, IPC_RMID, 0);
    } else
#endif
    {
        xvimage[foo] =
            (XvImage *) XvCreateImage(mDisplay, xv_port, xv_format, NULL,
                                      image_width, image_height);
        xvimage[foo]->data = malloc(xvimage[foo]->data_size);
        XSync(mDisplay, False);
    }
    memset(xvimage[foo]->data, 128, xvimage[foo]->data_size);
    return;
}

static void deallocate_xvimage(int foo)
{
#ifdef HAVE_SHM
    if (Shmem_Flag)
    {
        XShmDetach(mDisplay, &Shminfo[foo]);
        shmdt(Shminfo[foo].shmaddr);
    } else
#endif
    {
        free(xvimage[foo]->data);
    }
    XFree(xvimage[foo]);