libmpcodecs/vf_1bpp.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <inttypes.h>
  23
  24 #include "config.h"
  25 #include "mp_msg.h"
  26
  27 #include "img_format.h"
  28 #include "mp_image.h"
  29 #include "vf.h"
  30
  31 //===========================================================================//
  32
  33 static const unsigned int bgr_list[]={
  34     IMGFMT_Y800,
  35     IMGFMT_Y8,
  36     IMGFMT_BGR8,
  37     IMGFMT_RGB8,
  38
  39     IMGFMT_YVU9,
  40     IMGFMT_411P,
  41     IMGFMT_YV12,
  42     IMGFMT_I420,
  43     IMGFMT_IYUV,
  44     IMGFMT_422P,
  45     IMGFMT_444P,
  46
  47     IMGFMT_YUY2,
  48     IMGFMT_BGR12,
  49     IMGFMT_RGB12,
  50     IMGFMT_BGR15,
  51     IMGFMT_RGB15,
  52     IMGFMT_BGR16,
  53     IMGFMT_RGB16,
  54
  55     IMGFMT_BGR32,
  56     IMGFMT_RGB32,
  57
  58 //    IMGFMT_BGR24,
  59 //    IMGFMT_RGB24,
  60     0
  61 };
  62
  63 static unsigned int find_best(struct vf_instance *vf){
  64     unsigned int best=0;
  65     int ret;
  66     const unsigned int* p=bgr_list;
  67     while(*p){
  68         ret=vf->next->query_format(vf->next,*p);
  69         mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
  70         if(ret&VFCAP_CSP_SUPPORTED_BY_HW){ best=*p; break;} // no conversion -> bingo!
  71         if(ret&VFCAP_CSP_SUPPORTED && !best) best=*p; // best with conversion
  72         ++p;
  73     }
  74     return best;
  75 }
  76
  77 //===========================================================================//
  78
  79 struct vf_priv_s {
  80     unsigned int fmt;
  81 };
  82
  83 static int config(struct vf_instance *vf,
  84         int width, int height, int d_width, int d_height,
  85         unsigned int flags, unsigned int outfmt){
  86     if (!vf->priv->fmt)
  87         vf->priv->fmt=find_best(vf);
  88     if(!vf->priv->fmt){
  89         // no matching fmt, so force one...
  90         if(outfmt==IMGFMT_RGB8) vf->priv->fmt=IMGFMT_RGB32;
  91         else if(outfmt==IMGFMT_BGR8) vf->priv->fmt=IMGFMT_BGR32;
  92         else return 0;
  93     }
  94     return vf_next_config(vf,width,height,d_width,d_height,flags,vf->priv->fmt);
  95 }
  96
  97 static const int bittab[8]={128,64,32,16,8,4,2,1};
  98
  99 static void convert(mp_image_t *mpi, mp_image_t *dmpi, int value0, int value1,int bpp){
 100     int y;
 101     for(y=0;y<mpi->h;y++){
 102         unsigned char* src=mpi->planes[0]+mpi->stride[0]*y;
 103         switch(bpp){
 104         case 1: {
 105             unsigned char* dst=dmpi->planes[0]+dmpi->stride[0]*y;
 106             int x;
 107             for(x=0;x<mpi->w;x++)
 108                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 109             break; }
 110         case 2: {
 111             uint16_t* dst=(uint16_t*)(dmpi->planes[0]+dmpi->stride[0]*y);
 112             int x;
 113             for(x=0;x<mpi->w;x++)
 114                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 115             break; }
 116         case 4: {
 117             uint32_t* dst=(uint32_t*)(dmpi->planes[0]+dmpi->stride[0]*y);
 118             int x;
 119             for(x=0;x<mpi->w;x++)
 120                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 121             break; }
 122         }
 123     }
 124 }
 125
 126 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
 127     mp_image_t *dmpi;
 128
 129     // hope we'll get DR buffer:
 130     dmpi=vf_get_image(vf->next,vf->priv->fmt,
 131         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 132         mpi->w, mpi->h);
 133
 134     switch(dmpi->imgfmt){
 135     case IMGFMT_Y800:
 136     case IMGFMT_Y8:
 137     case IMGFMT_BGR8:
 138     case IMGFMT_RGB8:
 139         convert(mpi,dmpi,0,255,1);
 140         break;
 141     case IMGFMT_YVU9:
 142     case IMGFMT_411P:
 143     case IMGFMT_YV12:
 144     case IMGFMT_I420:
 145     case IMGFMT_IYUV:
 146     case IMGFMT_422P:
 147     case IMGFMT_444P:
 148         convert(mpi,dmpi,0,255,1);
 149         memset(dmpi->planes[1],128,dmpi->stride[1]*dmpi->chroma_height);
 150         memset(dmpi->planes[2],128,dmpi->stride[2]*dmpi->chroma_height);
 151         break;
 152     case IMGFMT_YUY2:
 153         convert(mpi,dmpi,0x8000,0x80ff,2);
 154         break;
 155     case IMGFMT_BGR12:
 156     case IMGFMT_RGB12:
 157         convert(mpi,dmpi,0,0x0fff,2);
 158         break;
 159     case IMGFMT_BGR15:
 160     case IMGFMT_RGB15:
 161         convert(mpi,dmpi,0,0x7fff,2);
 162         break;
 163     case IMGFMT_BGR16:
 164     case IMGFMT_RGB16:
 165         convert(mpi,dmpi,0,0xffff,2);
 166         break;
 167     case IMGFMT_BGR32:
 168     case IMGFMT_RGB32:
 169         convert(mpi,dmpi,0,0x00ffffff,4);
 170         break;
 171     default:
 172         mp_msg(MSGT_VFILTER,MSGL_ERR,"Unhandled format: 0x%X\n",dmpi->imgfmt);
 173         return 0;
 174     }
 175
 176     return vf_next_put_image(vf,dmpi, pts);
 177 }
 178
 179 //===========================================================================//
 180
 181 static int query_format(struct vf_instance *vf, unsigned int fmt){
 182     int best;
 183     if(fmt!=IMGFMT_RGB1 && fmt!=IMGFMT_BGR1) return 0;
 184     best=find_best(vf);
 185     if(!best) return 0; // no match
 186     return vf->next->query_format(vf->next,best);
 187 }
 188
 189 static int vf_open(vf_instance_t *vf, char *args){
 190     vf->config=config;
 191     vf->put_image=put_image;
 192     vf->query_format=query_format;
 193     vf->priv=malloc(sizeof(struct vf_priv_s));
 194     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 195     return 1;
 196 }
 197
 198 const vf_info_t vf_info_1bpp = {
 199     "1bpp bitmap -> YUV/BGR 8/15/16/32 conversion",
 200     "1bpp",
 201     "A'rpi",
 202     "",
 203     vf_open,
 204     NULL
 205 };
 206
 207 //===========================================================================//