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# SGK.COM -- The common for the SGK kernel. A common is used here for maximum
# efficiency (minimum indirection) when rasterizing vectors and encoding
# metacode. The maximum bitmap size is set at compile time in sgk.h.
# Booleans put here to avoid possible alignment problems.
bool mf_bitmap # metafile type, metacode or bitmap
bool mf_rotate # rotate (swap x and y)
bool mf_yflip # flip y axis end for end
bool mf_update # update bitmap
bool mf_delete # delete metacode file after dispose
bool mf_debug # print kernel debugging messages
bool mf_swap2 # swap every 2 bytes on output
bool mf_swap4 # swap every 4 bytes on output
bool mf_oneperfile # store each frame in a new file
common /sgkboo/ mf_bitmap, mf_rotate, mf_yflip, mf_update, mf_delete, mf_debug,
mf_swap2, mf_swap4, mf_oneperfile
# Everything else goes here.
int mf_fd # file descriptor of output file
int mf_frame # frame counter
char mf_fname[SZ_PATHNAME] # metafile filename
char mf_dispose[SZ_OSCMD] # host dispose command
int mf_op # [MCODE] index into obuf
short mf_obuf[LEN_OBUF] # metacode buffer
int mf_cx, mf_cy # [BITMAPS] current pen position
int mf_nbpb # packing factor, bits per byte
int mf_pxsize, mf_pysize # physical x, y size of bitmap, bits
int mf_wxsize, mf_wysize # x, y size of bitmap window, bits
int mf_xorigin, mf_yorigin # origin of bitmap window
real mf_xscale, mf_yscale # to convert from NDC to device coords
int mf_xmin, mf_xmax # x clipping limits
int mf_ymin, mf_ymax # y clipping limits
int mf_lenframe # frame size, words
int mf_linewidth # relative line width
int mf_lworigin # device width of line size 1.0
real mf_lwslope # device pixels per line size increment
int mf_fbuf[LEN_FBUF] # frame buffer (BIG)
int mf_bitmask[BPW] # bit mask table
common /sgkcom/ mf_fd, mf_frame, mf_op, mf_cx, mf_cy, mf_nbpb, mf_pxsize,
mf_pysize, mf_wxsize, mf_wysize, mf_xorigin, mf_yorigin, mf_xscale,
mf_yscale, mf_xmin, mf_xmax, mf_ymin, mf_ymax, mf_lenframe,
mf_linewidth, mf_lworigin, mf_lwslope, mf_fbuf, mf_bitmask, mf_obuf,
mf_fname, mf_dispose
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