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