libmpcodecs/vf_rgbtest.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <inttypes.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8
   9 #include "img_format.h"
  10 #include "mp_image.h"
  11 #include "vf.h"
  12
  13 //===========================================================================//
  14
  15 struct vf_priv_s {
  16     unsigned int fmt;
  17     int w, h;
  18 };
  19
  20 static unsigned int getfmt(unsigned int outfmt){
  21     switch(outfmt){
  22     case IMGFMT_RGB15:
  23     case IMGFMT_RGB16:
  24     case IMGFMT_RGB24:
  25     case IMGFMT_RGBA:
  26     case IMGFMT_ARGB:
  27     case IMGFMT_BGR15:
  28     case IMGFMT_BGR16:
  29     case IMGFMT_BGR24:
  30     case IMGFMT_BGRA:
  31     case IMGFMT_ABGR:
  32         return outfmt;
  33     }
  34     return 0;
  35 }
  36
  37 static void put_pixel(uint8_t *buf, int x, int y, int stride, int r, int g, int b, int fmt){
  38     switch(fmt){
  39     case IMGFMT_BGR15: ((uint16_t*)(buf + y*stride))[x]= ((r>>3)<<10) | ((g>>3)<<5) | (b>>3);
  40     break;
  41     case IMGFMT_RGB15: ((uint16_t*)(buf + y*stride))[x]= ((b>>3)<<10) | ((g>>3)<<5) | (r>>3);
  42     break;
  43     case IMGFMT_BGR16: ((uint16_t*)(buf + y*stride))[x]= ((r>>3)<<11) | ((g>>2)<<5) | (b>>3);
  44     break;
  45     case IMGFMT_RGB16: ((uint16_t*)(buf + y*stride))[x]= ((b>>3)<<11) | ((g>>2)<<5) | (r>>3);
  46     break;
  47     case IMGFMT_RGB24:
  48         buf[3*x + y*stride + 0]= r;
  49         buf[3*x + y*stride + 1]= g;
  50         buf[3*x + y*stride + 2]= b;
  51     break;
  52     case IMGFMT_BGR24:
  53         buf[3*x + y*stride + 0]= b;
  54         buf[3*x + y*stride + 1]= g;
  55         buf[3*x + y*stride + 2]= r;
  56     break;
  57     case IMGFMT_RGBA:
  58         buf[4*x + y*stride + 0]= r;
  59         buf[4*x + y*stride + 1]= g;
  60         buf[4*x + y*stride + 2]= b;
  61     break;
  62     case IMGFMT_BGRA:
  63         buf[4*x + y*stride + 0]= b;
  64         buf[4*x + y*stride + 1]= g;
  65         buf[4*x + y*stride + 2]= r;
  66     break;
  67     case IMGFMT_ARGB:
  68         buf[4*x + y*stride + 1]= r;
  69         buf[4*x + y*stride + 2]= g;
  70         buf[4*x + y*stride + 3]= b;
  71     break;
  72     case IMGFMT_ABGR:
  73         buf[4*x + y*stride + 1]= b;
  74         buf[4*x + y*stride + 2]= g;
  75         buf[4*x + y*stride + 3]= r;
  76     break;
  77     }
  78 }
  79
  80 static int config(struct vf_instance_s* vf,
  81         int width, int height, int d_width, int d_height,
  82         unsigned int flags, unsigned int outfmt){
  83     if (vf->priv->w > 0) { d_width  = width  = vf->priv->w; }
  84     if (vf->priv->h > 0) { d_height = height = vf->priv->h; }
  85     vf->priv->fmt=getfmt(outfmt);
  86     mp_msg(MSGT_VFILTER,MSGL_V,"rgb test format:%s\n", vo_format_name(outfmt));
  87     return vf_next_config(vf,width,height,d_width,d_height,flags,vf->priv->fmt);
  88 }
  89
  90 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
  91     mp_image_t *dmpi;
  92     int x, y;
  93     int w = vf->priv->w > 0 ? vf->priv->w : mpi->w;
  94     int h = vf->priv->h > 0 ? vf->priv->h : mpi->h;
  95
  96     // hope we'll get DR buffer:
  97     dmpi=vf_get_image(vf->next,vf->priv->fmt,
  98         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
  99         w, h);
 100
 101      for(y=0; y<h; y++){
 102          for(x=0; x<w; x++){
 103              int c= 256*x/w;
 104              int r=0,g=0,b=0;
 105
 106              if(3*y<h)        r=c;
 107              else if(3*y<2*h) g=c;
 108              else                  b=c;
 109
 110              put_pixel(dmpi->planes[0], x, y, dmpi->stride[0], r, g, b, vf->priv->fmt);
 111          }
 112      }
 113
 114     return vf_next_put_image(vf,dmpi, pts);
 115 }
 116
 117 //===========================================================================//
 118
 119 static int query_format(struct vf_instance_s* vf, unsigned int outfmt){
 120     unsigned int fmt=getfmt(outfmt);
 121     if(!fmt) return 0;
 122     return vf_next_query_format(vf,fmt) & (~VFCAP_CSP_SUPPORTED_BY_HW);
 123 }
 124
 125 static int open(vf_instance_t *vf, char* args){
 126     vf->config=config;
 127     vf->put_image=put_image;
 128     vf->query_format=query_format;
 129     vf->priv=malloc(sizeof(struct vf_priv_s));
 130     vf->priv->w = vf->priv->h = 0;
 131     if (args)
 132         sscanf(args, "%d:%d", &vf->priv->w, &vf->priv->h);
 133     return 1;
 134 }
 135
 136 const vf_info_t vf_info_rgbtest = {
 137     "rgbtest",
 138     "rgbtest",
 139     "Michael Niedermayer",
 140     "",
 141     open,
 142     NULL
 143 };
 144
 145 //===========================================================================//