mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-12-02 00:41:51 +00:00
140 lines
3.3 KiB
Lua
140 lines
3.3 KiB
Lua
--
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-- Embed the Cg renderprogs into renderer/RenderProgs_embedded.cpp as static data buffers.
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--
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local function stripfile( fname )
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print( fname )
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local f = io.open( fname )
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local s = f:read( "*a" )
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f:close()
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-- strip tabs
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--s = s:gsub("[\t]", "")
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-- strip any CRs
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s = s:gsub("[\r]", "")
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-- strip out comments
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s = s:gsub("\n%-%-[^\n]*", "")
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-- escape backslashes
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s = s:gsub("\\", "\\\\")
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-- strip duplicate line feeds
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s = s:gsub("\n+", "\n")
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-- strip out leading comments
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s = s:gsub("^%-%-\n", "")
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-- escape line feeds
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s = s:gsub("\n", "\\n")
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-- escape double quote marks
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s = s:gsub("\"", "\\\"")
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return s
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end
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local function loadfile(fname)
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print(fname)
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local f = io.open(fname)
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local s = f:read("*a")
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f:close()
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-- escape line feeds
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--s = s:gsub("\n", "\n\"")
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-- escape double quote marks
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s = s:gsub("\"", "\\\"")
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return s
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end
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local function writeline(out, s, continues)
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out:write("\t\"")
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out:write(s)
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out:write(iif(continues, "\"\n", "\"},\n\n"))
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end
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local function writefile(out, fname, contents)
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local max = 1024
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--out:write("\t/* " .. fname .. " */\n")
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-- break up large strings to fit in Visual Studio's string length limit
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local start = 1
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local len = contents:len()
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while start <= len do
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local n = len - start
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if n > max then n = max end
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local finish = start + n
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-- make sure I don't cut an escape sequence
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while contents:sub(finish, finish) == "\\" do
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finish = finish - 1
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end
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writeline(out, contents:sub(start, finish), finish < len)
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start = finish + 1
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end
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--out:write("\n")
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end
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local function writefilesimple( out, filename, contents )
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-- add some extra EOL so we don't break out of the loop too early
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contents = contents .. "\n"
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-- split at line ends and grab everything before
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for line in string.gmatch( contents, "([^\n]*)\n" ) do
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out:write( "\t\t\"" .. line .. "\\n\"\n" )
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end
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out:write( "\t\t\n\t},\n\t\n" )
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end
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function doembed()
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-- load the manifest of script files
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scripts = dofile( "../base/renderprogs/_manifest.lua" )
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local out = io.open("renderer/RenderProgs_embedded.h", "w+b")
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out:write("// Cg shaders, as static data buffers for release mode builds\n")
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out:write("// DO NOT EDIT - this file is autogenerated - see BUILD.txt\n")
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out:write("// To regenerate this file, run: premake4 embed\n\n")
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out:write("struct cgShaderDef_t\n{\n")
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out:write("\tconst char* name;\n");
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out:write("\tconst char* shaderText;\n");
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out:write("};\n\n");
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--out:write("extern const cgShaderDef_t cg_renderprogs[];\n")
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--out:close()
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out:write("static const cgShaderDef_t cg_renderprogs[] =\n{\n")
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-- out = io.open("renderer/RenderProgs_embedded.cpp", "w+b")
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-- out:write("// Cg shaders, as static data buffers for release mode builds \n")
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-- out:write("// DO NOT EDIT - this file is autogenerated - see BUILD.txt \n")
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-- out:write("// To regenerate this file, run: premake4 embed \n\n")
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-- out:write("#include \"RenderProgs_embedded.h\"\n\n")
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-- out:write("const cgShaderDef_t cg_renderprogs[] =\n")
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for i,filename in ipairs( scripts ) do
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print( filename )
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--out:write("const char glsl_" .. fn .. "[] = {\n")
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out:write("\t{\n\t\t\"renderprogs/" .. filename .. "\",\n")
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local s = loadfile( "../base/renderprogs/" .. filename )
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writefilesimple( out, filename, s )
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--out:write("\t0}\n");
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end
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out:write( "\t{0, 0},\n\t\n};\n" );
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out:close()
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end
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