/* * This file is part of MPlayer. * * MPlayer is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * MPlayer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with MPlayer; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include <stdio.h>#include <stdlib.h>#include <string.h>#include "mp_image.h"#include "mp_msg.h"#include "vf.h" #include "libvo/fastmemcpy.h"#include "libavutil/common.h" struct vf_priv_s {    int x, y, w, h;}; static intconfig(struct vf_instance *vf,       int width, int height, int d_width, int d_height,       unsigned int flags, unsigned int outfmt){    if (vf->priv->w < 0 || width < vf->priv->w)        vf->priv->w = width;    if (vf->priv->h < 0 || height < vf->priv->h)        vf->priv->h = height;    if (vf->priv->x < 0)        vf->priv->x = (width - vf->priv->w) / 2;    if (vf->priv->y < 0)        vf->priv->y = (height - vf->priv->h) / 2;    if (vf->priv->w + vf->priv->x > width        || vf->priv->h + vf->priv->y > height) {        mp_msg(MSGT_VFILTER,MSGL_WARN,"rectangle: bad position/width/height - rectangle area is out of the original!\n");        return 0;    }    return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt);} static intcontrol(struct vf_instance *vf, int request, void *data){    const int *const tmp = data;    switch(request){    case VFCTRL_CHANGE_RECTANGLE:        switch (tmp[0]){        case 0:            vf->priv->w += tmp[1];            return 1;            break;        case 1:            vf->priv->h += tmp[1];            return 1;            break;        case 2:            vf->priv->x += tmp[1];            return 1;            break;        case 3:            vf->priv->y += tmp[1];            return 1;            break;        default:            mp_msg(MSGT_VFILTER,MSGL_FATAL,"Unknown param %d \n", tmp[0]);            return 0;        }    }    return vf_next_control(vf, request, data);    return 0;}static intput_image(struct vf_instance *vf, mp_image_t* mpi, double pts){    mp_image_t* dmpi;    unsigned int bpp = mpi->bpp / 8;    int x, y, w, h;    dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP,                        MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,                        mpi->w, mpi->h);     memcpy_pic(dmpi->planes[0],mpi->planes[0],mpi->w*bpp, mpi->h,               dmpi->stride[0],mpi->stride[0]);    if(mpi->flags&MP_IMGFLAG_PLANAR && mpi->flags&MP_IMGFLAG_YUV){        memcpy_pic(dmpi->planes[1],mpi->planes[1],                   mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift,                   dmpi->stride[1],mpi->stride[1]);        memcpy_pic(dmpi->planes[2],mpi->planes[2],                   mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift,                   dmpi->stride[2],mpi->stride[2]);    }     /* Draw the rectangle */     mp_msg(MSGT_VFILTER,MSGL_INFO, "rectangle: -vf rectangle=%d:%d:%d:%d \n", vf->priv->w, vf->priv->h, vf->priv->x, vf->priv->y);     x = FFMIN(vf->priv->x, dmpi->width);    x = FFMAX(x, 0);     w = vf->priv->x + vf->priv->w - 1 - x;    w = FFMIN(w, dmpi->width - x);    w = FFMAX(w, 0);     y = FFMIN(vf->priv->y, dmpi->height);    y = FFMAX(y, 0);     h = vf->priv->y + vf->priv->h - 1 - y;    h = FFMIN(h, dmpi->height - y);    h = FFMAX(h, 0);     if (0 <= vf->priv->y && vf->priv->y <= dmpi->height) {        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;        unsigned int count = w * bpp;        while (count--)            p[count] = 0xff - p[count];    }    if (h != 1 && vf->priv->y + vf->priv->h - 1 <= mpi->height) {        unsigned char *p = dmpi->planes[0] + (vf->priv->y + vf->priv->h - 1) * dmpi->stride[0] + x * bpp;        unsigned int count = w * bpp;        while (count--)            p[count] = 0xff - p[count];    }    if (0 <= vf->priv->x  && vf->priv->x <= dmpi->width) {        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp;        unsigned int count = h;        while (count--) {            unsigned int i = bpp;            while (i--)                p[i] = 0xff - p[i];            p += dmpi->stride[0];        }    }    if (w != 1 && vf->priv->x + vf->priv->w - 1 <= mpi->width) {        unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + (vf->priv->x + vf->priv->w - 1) * bpp;        unsigned int count = h;        while (count--) {            unsigned int i = bpp;            while (i--)                p[i] = 0xff - p[i];            p += dmpi->stride[0];        }    }    return vf_next_put_image(vf, dmpi, pts);} static intvf_open(vf_instance_t *vf, char *args) {    vf->config = config;    vf->control = control;    vf->put_image = put_image;    vf->priv = malloc(sizeof(struct vf_priv_s));    vf->priv->x = -1;    vf->priv->y = -1;    vf->priv->w = -1;    vf->priv->h = -1;    if (args)        sscanf(args, "%d:%d:%d:%d",               &vf->priv->w, &vf->priv->h, &vf->priv->x, &vf->priv->y);    return 1;} const vf_info_t vf_info_rectangle = {    "draw rectangle",    "rectangle",    "Kim Minh Kaplan",    "",    vf_open,    NULL};