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%D \module
%D [ file=grph-raw,
%D version=2006.08.26, % overhaul of 1997.03.31
%D title=\CONTEXT\ Graphic Macros,
%D subtitle=Raw Bitmaps,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt Graphic Macros / Raw Bitmaps}
%D \startluacode
%D function document.TestBitmap(nx,ny)
%D local random = math.random
%D local maxbit = 2^24
%D for i=1,nx do
%D for i=1,ny do
%D context("%06x",random(0,maxbit))
%D end
%D end
%D end
%D \stopluacode
%D
%D \def\TestBitmap#1#2{\ctxlua{document.TestBitmap(#1,#2)}}
%D
%D \blank
%D
%D \startMPcode
%D draw textext("\bitmapimage[x=100,y=100]{\TestBitmap{100}{100}}") xsized 10cm ;
%D \stopMPcode
%D
%D \blank
%D
%D \startMPcode
%D draw textext("\bitmapimage[x=200,y=50]{\TestBitmap{50}{200}}") xsized 10cm ;
%D \stopMPcode
\registerctxluafile{grph-raw}{1.001}
\unprotect
\unexpanded\def\bitmapimage[#1]#2%
{\hbox\bgroup
\getparameters[@@im][\c!color=rgb,\c!width=,\c!height=,\c!x=,\c!y=,#1]%
\ctxlua{figures.bitmapimage {
data = \!!bs#2\!!es,
xresolution = "\@@imx",
yresolution = "\@@imy",
colorspace = "\@@imcolor",
width = "\@@imwidth",
height = "\@@imheight"
}}%
\egroup}
\unexpanded\def\startbitmapimage[#1]#2\stopbitmapimage
{\bitmapimage[#1]{#2}}
\let\stopbitmapimage\relax
\protect \endinput
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