diff options
Diffstat (limited to 'pkg/images/tv/display/gwindow.h')
| -rw-r--r-- | pkg/images/tv/display/gwindow.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/pkg/images/tv/display/gwindow.h b/pkg/images/tv/display/gwindow.h new file mode 100644 index 00000000..ae91e2ea --- /dev/null +++ b/pkg/images/tv/display/gwindow.h @@ -0,0 +1,49 @@ +# Window descriptor structure. + +define LEN_WDES (210+(W_MAXWC+1)*LEN_WC) +define LEN_WC 10 # 4=[XbXeYbYe]+2=tr_type[xy] +define W_MAXWC 5 # max world coord systems +define W_SZSTRING 99 # size of strings +define W_SZIMSECT W_SZSTRING # image section string + +define W_DEVICE Memi[$1] +define W_FRAME Memi[$1+1] # device frame number +define W_XRES Memi[$1+2] # device resolution, x +define W_YRES Memi[$1+3] # device resolution, y +define W_BPDISP Memi[$1+4] # bad pixel display option +define W_BPCOLORS Memi[$1+5] # overlay colors +define W_OCOLORS Memi[$1+6] # badpixel colors +define W_IMSECT Memc[P2C($1+10)] # image section +define W_OVRLY Memc[P2C($1+60)] # overlay mask +define W_BPM Memc[P2C($1+110)] # bad pixel mask +define W_ZPM Memc[P2C($1+160)] # Z scaling pixel mask +define W_WC ($1+$2*LEN_WC+210) # ptr to coord descriptor + +# Fields of the WC coordinate descriptor, a substructure of the window +# descriptor. "W_XB(W_WC(w,0))" is the XB field of wc 0 of window W. + +define W_XS Memr[P2R($1)] # starting X value +define W_XE Memr[P2R($1+1)] # ending X value +define W_XT Memi[$1+2] # X transformation type +define W_YS Memr[P2R($1+3)] # starting Y value +define W_YE Memr[P2R($1+4)] # ending Y value +define W_YT Memi[$1+5] # Y transformation type +define W_ZS Memr[P2R($1+6)] # starting Z value (greyscale) +define W_ZE Memr[P2R($1+7)] # ending Z value +define W_ZT Memi[$1+8] # Z transformation type +define W_UPTR Memi[$1+9] # LUT when ZT=USER + +# WC types. + +define W_NWIN 0 # Display window in NDC coordinates +define W_DWIN 1 # Display window in image pixel coordinates +define W_WWIN 2 # Display window in image world coordinates +define W_IPIX 3 # Image pixel coordinates (in pixels) +define W_DPIX 4 # Display pixel coordinates (in pixels) + +# Types of coordinate and greyscale transformations. + +define W_UNITARY 0 # values map without change +define W_LINEAR 1 # linear mapping +define W_LOG 2 # logarithmic mapping +define W_USER 3 # user specifies transformation |