mirror of
https://github.com/bulletphysics/bullet3
synced 2024-12-04 17:40:06 +00:00
99 lines
2.6 KiB
Lua
99 lines
2.6 KiB
Lua
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function stringifyKernel(filenameIn, filenameOut, kernelMethod)
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local BUFSIZE = 10*1024*1024 -- 10MB
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local f = io.open(filenameIn,"r");
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local fw = io.open(filenameOut,"w");
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fw:write("//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project\n")
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fw:write("static const char* " .. kernelMethod .. "= \\\n")
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local cc, lc, wc = 0, 0, 0 -- char, line, and word counts
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while true do
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local lines, rest = f:read(BUFSIZE, "*line")
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if not lines then break end
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local i = 0
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local startpos = 0
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local slen = string.len(lines)
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local endpos = 0
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while true do
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i = string.find(lines, "\n", i+1) -- find 'next' newline
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if i == nil then
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endpos = slen
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else
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endpos = i
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end
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oneline = string.sub(lines,startpos,endpos)
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oneline = string.gsub(oneline,"\n","")
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oneline = string.gsub(oneline,"\"","\\\"");
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oneline = '\"' .. oneline .. '\\n\"'
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oneline = string.gsub(oneline,"\\\\n","")
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oneline = oneline .. "\n"
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--print(oneline)
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fw:write(oneline);
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if i == nil then break end
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startpos = i+1
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end
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if rest then lines = lines .. rest .. '\n' end
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cc = cc + string.len(lines)
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-- count words in the chunk
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local _,t = string.gsub(lines, "%S+", "")
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wc = wc + t
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-- count newlines in the chunk
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_,t = string.gsub(lines, "\n", "\n")
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lc = lc + t
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end
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--print("stringified " .. filenameIn .. " into " .. filenameOut .. " processed " .. lc .. " lines")
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print(filenameIn .. " (" .. lc .. " lines)")
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f:close()
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fw:write(";\n")
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fw:close()
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end
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function preprocessKernel(kernelfile, filenameOut, kernelMethod)
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lcpp=require('lcpp');
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local out=lcpp.compileFile(kernelfile);
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local embedFileName = kernelfile .. ".embed"
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local fw = io.open(embedFileName,"w");
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fw:write(out)
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fw:close()
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stringifyKernel(embedFileName,filenameOut, kernelMethod);
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end
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newoption {
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trigger = "kernelfile",
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value = "kernelpath",
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description = "full path to the kernel source input file"
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}
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newoption {
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trigger = "headerfile",
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value = "path",
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description = "full path to the header output file"
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}
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newoption {
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trigger = "stringname",
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value = "var",
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description = "name of the kernel string variable"
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}
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newaction {
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trigger = "stringify",
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description = "stringify kernels source code into strings",
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execute = function()
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preprocessKernel( _OPTIONS["kernelfile"] , _OPTIONS["headerfile"], _OPTIONS["stringname"])
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end
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}
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