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author | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-04-21 17:22:37 +0000 |
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committer | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-04-21 17:22:37 +0000 |
commit | 260f6aec1d537de8e85e58b8a03c31183c939e0d (patch) | |
tree | 1fcddd14c55f36f8495fcff9a944b1100a71b495 /libmpcodecs/vf_palette.c | |
parent | 08465f819d20030aebfaafa2d19a7a132e0d489f (diff) | |
download | mpv-260f6aec1d537de8e85e58b8a03c31183c939e0d.tar.bz2 mpv-260f6aec1d537de8e85e58b8a03c31183c939e0d.tar.xz |
8bpp paletted -> 15/16/24/32 converter
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5775 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpcodecs/vf_palette.c')
-rw-r--r-- | libmpcodecs/vf_palette.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/libmpcodecs/vf_palette.c b/libmpcodecs/vf_palette.c new file mode 100644 index 0000000000..96810b70b2 --- /dev/null +++ b/libmpcodecs/vf_palette.c @@ -0,0 +1,137 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> + +#include "../config.h" +#include "../mp_msg.h" + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" + +#include "../postproc/rgb2rgb.h" + +//===========================================================================// + +static unsigned int bgr_list[]={ + IMGFMT_BGR32, + IMGFMT_BGR24, + IMGFMT_BGR16, + IMGFMT_BGR15, + NULL +}; +static unsigned int rgb_list[]={ + IMGFMT_RGB32, + IMGFMT_RGB24, + IMGFMT_RGB16, + IMGFMT_RGB15, + NULL +}; + +static unsigned int find_best(struct vf_instance_s* vf, unsigned int fmt){ + unsigned int best=0; + int ret; + unsigned int* p; + if(fmt==IMGFMT_BGR8) p=bgr_list; + else if(fmt==IMGFMT_RGB8) p=rgb_list; + else return 0; + while(*p){ + ret=vf->next->query_format(vf->next,*p); + mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3); + if(ret&2){ best=*p; break;} // no conversion -> bingo! + if(ret&1 && !best) best=*p; // best with conversion + ++p; + } + return best; +} + +//===========================================================================// + +struct vf_priv_s { + unsigned int fmt; +}; + +static int config(struct vf_instance_s* vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + vf->priv->fmt=find_best(vf,outfmt); + if(!vf->priv->fmt){ + // no matching fmt, so force one... + if(outfmt==IMGFMT_RGB8) vf->priv->fmt=IMGFMT_RGB32; + else if(outfmt==IMGFMT_BGR8) vf->priv->fmt=IMGFMT_BGR32; + else return 0; + } + return vf_next_config(vf,width,height,d_width,d_height,flags,vf->priv->fmt); +} + +static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){ + mp_image_t *dmpi; + + // hope we'll get DR buffer: + dmpi=vf_get_image(vf->next,vf->priv->fmt, + MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, + mpi->w, mpi->h); + + if(mpi->w==mpi->stride[0] && dmpi->w*(dmpi->bpp>>3)==dmpi->stride[0]){ + // no stride conversion needed + switch(dmpi->imgfmt&255){ + case 15: + palette8torgb15(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]); + break; + case 16: + palette8torgb16(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]); + break; + case 24: + palette8torgb24(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]); + break; + case 32: + palette8torgb32(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]); + break; + } + } else { + int y; + for(y=0;y<mpi->h;y++){ + unsigned char* src=mpi->planes[0]+y*mpi->stride[0]; + unsigned char* dst=dmpi->planes[0]+y*dmpi->stride[0]; + switch(dmpi->imgfmt&255){ + case 15: + palette8torgb15(src,dst,mpi->w,mpi->planes[1]);break; + case 16: + palette8torgb16(src,dst,mpi->w,mpi->planes[1]);break; + case 24: + palette8torgb24(src,dst,mpi->w,mpi->planes[1]);break; + case 32: + palette8torgb32(src,dst,mpi->w,mpi->planes[1]);break; + } + } + } + + vf_next_put_image(vf,dmpi); +} + +//===========================================================================// + +static int query_format(struct vf_instance_s* vf, unsigned int fmt){ + int best=find_best(vf,fmt); + if(!best) return 0; // no match + return vf->next->query_format(vf->next,best); +} + +static int open(vf_instance_t *vf, char* args){ + vf->config=config; + vf->put_image=put_image; + vf->query_format=query_format; + vf->priv=malloc(sizeof(struct vf_priv_s)); + return 1; +} + +vf_info_t vf_info_palette = { + "8bpp indexed (using palette) -> BGR 15/16/24/32 conversion", + "palette", + "A'rpi", + "", + open +}; + +//===========================================================================// |