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/* |
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* This file is part of MPlayer. |
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* |
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* MPlayer is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* MPlayer is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with MPlayer; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <inttypes.h> |
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#include "config.h" |
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#include "mp_msg.h" |
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#include "img_format.h" |
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#include "mp_image.h" |
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#include "vf.h" |
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struct vf_priv_s { |
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int direction; |
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}; |
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static void rotate(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,int dir){ |
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int y; |
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if(dir&1){ |
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src+=srcstride*(w-1); |
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srcstride*=-1; |
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} |
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if(dir&2){ |
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dst+=dststride*(h-1); |
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dststride*=-1; |
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} |
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for(y=0;y<h;y++){ |
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int x; |
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switch(bpp){ |
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case 1: |
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for(x=0;x<w;x++) dst[x]=src[y+x*srcstride]; |
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break; |
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case 2: |
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for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+y*2+x*srcstride)); |
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break; |
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case 3: |
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for(x=0;x<w;x++){ |
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dst[x*3+0]=src[0+y*3+x*srcstride]; |
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dst[x*3+1]=src[1+y*3+x*srcstride]; |
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dst[x*3+2]=src[2+y*3+x*srcstride]; |
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} |
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break; |
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case 4: |
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for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+y*4+x*srcstride)); |
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} |
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dst+=dststride; |
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} |
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} |
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//===========================================================================// |
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static int config(struct vf_instance *vf, |
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int width, int height, int d_width, int d_height, |
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unsigned int flags, unsigned int outfmt){ |
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if (vf->priv->direction & 4) { |
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if (width<height) vf->priv->direction&=3; |
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} |
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if (vf->priv->direction & 4){ |
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vf->put_image=vf_next_put_image; // passthru mode! |
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if (vf->next->draw_slice) vf->draw_slice=vf_next_draw_slice; |
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/* FIXME: this should be in an other procedure in vf.c; that should always check |
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whether the filter after the passthrough one still (not)supports slices */ |
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
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} |
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return vf_next_config(vf,height,width,d_height,d_width,flags,outfmt); |
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} |
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static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ |
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mp_image_t *dmpi; |
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// hope we'll get DR buffer: |
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dmpi=vf_get_image(vf->next,mpi->imgfmt, |
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, |
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mpi->h, mpi->w); |
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if(mpi->flags&MP_IMGFLAG_PLANAR){ |
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rotate(dmpi->planes[0],mpi->planes[0], |
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dmpi->stride[0],mpi->stride[0], |
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dmpi->w,dmpi->h,1,vf->priv->direction); |
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rotate(dmpi->planes[1],mpi->planes[1], |
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dmpi->stride[1],mpi->stride[1], |
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dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction); |
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rotate(dmpi->planes[2],mpi->planes[2], |
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dmpi->stride[2],mpi->stride[2], |
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dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,vf->priv->direction); |
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} else { |
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rotate(dmpi->planes[0],mpi->planes[0], |
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dmpi->stride[0],mpi->stride[0], |
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dmpi->w,dmpi->h,dmpi->bpp>>3,vf->priv->direction); |
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dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette |
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} |
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return vf_next_put_image(vf,dmpi, pts); |
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} |
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//===========================================================================// |
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static int query_format(struct vf_instance *vf, unsigned int fmt){ |
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if(IMGFMT_IS_RGB(fmt) || IMGFMT_IS_BGR(fmt)) return vf_next_query_format(vf, fmt); |
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// we can support only symmetric (chroma_x_shift==chroma_y_shift) YUV formats: |
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switch(fmt) { |
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case IMGFMT_YV12: |
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case IMGFMT_I420: |
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case IMGFMT_IYUV: |
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case IMGFMT_YVU9: |
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// case IMGFMT_IF09: |
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case IMGFMT_Y8: |
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case IMGFMT_Y800: |
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case IMGFMT_444P: |
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return vf_next_query_format(vf, fmt); |
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} |
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return 0; |
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} |
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static int vf_open(vf_instance_t *vf, char *args){ |
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vf->config=config; |
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vf->put_image=put_image; |
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vf->query_format=query_format; |
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vf->priv=malloc(sizeof(struct vf_priv_s)); |
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vf->priv->direction=args?atoi(args):0; |
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return 1; |
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} |
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const vf_info_t vf_info_rotate = { |
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"rotate", |
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"rotate", |
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"A'rpi", |
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"", |
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vf_open, |
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NULL |
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}; |
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//===========================================================================// |
Stefano Sabatini
12 years ago