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_BGR15,
  49     IMGFMT_RGB15,
  50     IMGFMT_BGR16,
  51     IMGFMT_RGB16,
  52
  53     IMGFMT_BGR32,
  54     IMGFMT_RGB32,
  55
  56 //    IMGFMT_BGR24,
  57 //    IMGFMT_RGB24,
  58     0
  59 };
  60
  61 static unsigned int find_best(struct vf_instance *vf){
  62     unsigned int best=0;
  63     int ret;
  64     const unsigned int* p=bgr_list;
  65     while(*p){
  66         ret=vf->next->query_format(vf->next,*p);
  67         mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
  68         if(ret&VFCAP_CSP_SUPPORTED_BY_HW){ best=*p; break;} // no conversion -> bingo!
  69         if(ret&VFCAP_CSP_SUPPORTED && !best) best=*p; // best with conversion
  70         ++p;
  71     }
  72     return best;
  73 }
  74
  75 //===========================================================================//
  76
  77 struct vf_priv_s {
  78     unsigned int fmt;
  79 };
  80
  81 static int config(struct vf_instance *vf,
  82         int width, int height, int d_width, int d_height,
  83         unsigned int flags, unsigned int outfmt){
  84     if (!vf->priv->fmt)
  85         vf->priv->fmt=find_best(vf);
  86     if(!vf->priv->fmt){
  87         // no matching fmt, so force one...
  88         if(outfmt==IMGFMT_RGB8) vf->priv->fmt=IMGFMT_RGB32;
  89         else if(outfmt==IMGFMT_BGR8) vf->priv->fmt=IMGFMT_BGR32;
  90         else return 0;
  91     }
  92     return vf_next_config(vf,width,height,d_width,d_height,flags,vf->priv->fmt);
  93 }
  94
  95 static const int bittab[8]={128,64,32,16,8,4,2,1};
  96
  97 static void convert(mp_image_t *mpi, mp_image_t *dmpi, int value0, int value1,int bpp){
  98     int y;
  99     for(y=0;y<mpi->h;y++){
 100         unsigned char* src=mpi->planes[0]+mpi->stride[0]*y;
 101         switch(bpp){
 102         case 1: {
 103             unsigned char* dst=dmpi->planes[0]+dmpi->stride[0]*y;
 104             int x;
 105             for(x=0;x<mpi->w;x++)
 106                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 107             break; }
 108         case 2: {
 109             uint16_t* dst=(uint16_t*)(dmpi->planes[0]+dmpi->stride[0]*y);
 110             int x;
 111             for(x=0;x<mpi->w;x++)
 112                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 113             break; }
 114         case 4: {
 115             uint32_t* dst=(uint32_t*)(dmpi->planes[0]+dmpi->stride[0]*y);
 116             int x;
 117             for(x=0;x<mpi->w;x++)
 118                 dst[x]=(src[x>>3]&bittab[x&7]) ? value1 : value0;
 119             break; }
 120         }
 121     }
 122 }
 123
 124 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
 125     mp_image_t *dmpi;
 126
 127     // hope we'll get DR buffer:
 128     dmpi=vf_get_image(vf->next,vf->priv->fmt,
 129         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 130         mpi->w, mpi->h);
 131
 132     switch(dmpi->imgfmt){
 133     case IMGFMT_Y800:
 134     case IMGFMT_Y8:
 135     case IMGFMT_BGR8:
 136     case IMGFMT_RGB8:
 137         convert(mpi,dmpi,0,255,1);
 138         break;
 139     case IMGFMT_YVU9:
 140     case IMGFMT_411P:
 141     case IMGFMT_YV12:
 142     case IMGFMT_I420:
 143     case IMGFMT_IYUV:
 144     case IMGFMT_422P:
 145     case IMGFMT_444P:
 146         convert(mpi,dmpi,0,255,1);
 147         memset(dmpi->planes[1],128,dmpi->stride[1]*dmpi->chroma_height);
 148         memset(dmpi->planes[2],128,dmpi->stride[2]*dmpi->chroma_height);
 149         break;
 150     case IMGFMT_YUY2:
 151         convert(mpi,dmpi,0x8000,0x80ff,2);
 152         break;
 153     case IMGFMT_BGR15:
 154     case IMGFMT_RGB15:
 155         convert(mpi,dmpi,0,0x7fff,2);
 156         break;
 157     case IMGFMT_BGR16:
 158     case IMGFMT_RGB16:
 159         convert(mpi,dmpi,0,0xffff,2);
 160         break;
 161     case IMGFMT_BGR32:
 162     case IMGFMT_RGB32:
 163         convert(mpi,dmpi,0,0x00ffffff,4);
 164         break;
 165     default:
 166         mp_msg(MSGT_VFILTER,MSGL_ERR,"Unhandled format: 0x%X\n",dmpi->imgfmt);
 167         return 0;
 168     }
 169
 170     return vf_next_put_image(vf,dmpi, pts);
 171 }
 172
 173 //===========================================================================//
 174
 175 static int query_format(struct vf_instance *vf, unsigned int fmt){
 176     int best;
 177     if(fmt!=IMGFMT_RGB1 && fmt!=IMGFMT_BGR1) return 0;
 178     best=find_best(vf);
 179     if(!best) return 0; // no match
 180     return vf->next->query_format(vf->next,best);
 181 }
 182
 183 static int vf_open(vf_instance_t *vf, char *args){
 184     vf->config=config;
 185     vf->put_image=put_image;
 186     vf->query_format=query_format;
 187     vf->priv=malloc(sizeof(struct vf_priv_s));
 188     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 189     return 1;
 190 }
 191
 192 const vf_info_t vf_info_1bpp = {
 193     "1bpp bitmap -> YUV/BGR 8/15/16/32 conversion",
 194     "1bpp",
 195     "A'rpi",
 196     "",
 197     vf_open,
 198     NULL
 199 };
 200
 201 //===========================================================================//