mirror of https://github.com/bkaradzic/bgfx
IDL: Combine State, Stencil, Buffer, Texture, Sampler, and Reset states.
This commit is contained in:
Бранимир Караџић
parent
69072067ef
commit
c4a5103be2
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@ -0,0 +1,207 @@
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local idl = require "idl"
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do
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local doxygen = require "doxygen"
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local source = doxygen.load "bgfx.idl"
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local f = assert(load(source, "bgfx.idl" , "t", idl))
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f()
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local codegen = require "codegen"
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codegen.nameconversion(idl.types, idl.funcs)
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end
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local csharp_template = [[
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using System;
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using System.Runtime.InteropServices;
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using System.Security;
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internal struct NativeFunctions
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{
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$types
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$funcs
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#if DEBUG
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const string DllName = "bgfx_debug.dll";
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#else
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const string DllName = "bgfx.dll";
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#endif
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}
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]]
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local function hasPrefix(str, prefix)
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return prefix == "" or str:sub(1, #prefix) == prefix
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end
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local function hasSuffix(str, suffix)
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return suffix == "" or str:sub(-#suffix) == suffix
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end
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local function convert_type_0(arg)
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if arg.ctype == "uint64_t" then
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return "ulong"
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elseif arg.ctype == "uint32_t" then
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return "uint"
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elseif arg.ctype == "uint16_t" then
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return "ushort"
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elseif arg.ctype == "uint8_t" then
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return "byte"
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elseif arg.ctype == "const char*" then
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return "[MarshalAs(UnmanagedType.LPStr)] string"
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elseif hasSuffix(arg.fulltype, "Handle") then
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return arg.fulltype
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elseif hasSuffix(arg.fulltype, "::Enum") then
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return arg.fulltype:gsub("::Enum", "")
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end
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return arg.ctype
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end
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local function convert_type(arg)
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local ctype = convert_type_0(arg)
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return ctype:gsub("const ", "")
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end
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local converter = {}
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local yield = coroutine.yield
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local function gen()
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local r = csharp_template:gsub("$(%l+)", function(what)
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local tmp = {}
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for _, object in ipairs(idl[what]) do
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local co = coroutine.create(converter[what])
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local any
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while true do
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local ok, v = coroutine.resume(co, object)
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assert(ok, debug.traceback(co, v))
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if not v then
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break
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end
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table.insert(tmp, v)
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any = true
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end
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if any then
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table.insert(tmp, "")
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end
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end
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return table.concat(tmp, "\n\t")
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end)
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return r
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end
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local lastCombinedIdx = -1
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local combined = { "State", "Stencil", "Buffer", "Texture", "Sampler", "Reset" }
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local function isCombinedBlock(str)
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for idx, prefix in ipairs(combined) do
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if hasPrefix(str, prefix) then
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return idx
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end
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end
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return -1
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end
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local function endCombinedBlock()
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if lastCombinedIdx ~= -1 then
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yield("}")
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end
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lastCombinedIdx = -1
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end
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function converter.types(typ)
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if typ.handle then
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endCombinedBlock()
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yield("public struct " .. typ.name .. "{ public ushort idx; }")
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elseif hasSuffix(typ.name, "::Enum") then
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endCombinedBlock()
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yield("public enum " .. typ.typename)
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yield("{")
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for _, enum in ipairs(typ.enum) do
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yield("\t" .. enum.name .. ",")
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end
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yield("}")
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elseif typ.bits ~= nil then
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local idx = isCombinedBlock(typ.name)
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if idx ~= lastCombinedIdx then
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endCombinedBlock()
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end
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local format = "0x%08x"
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local enumType = ""
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if typ.bits == 64 then
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format = "0x%016x"
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enumType = " : ulong"
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elseif typ.bits == 16 then
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format = "0x%04x"
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enumType = " : ushort"
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end
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if lastCombinedIdx == -1 then
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yield("[Flags]")
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if idx ~= -1 then
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yield("public enum " .. combined[idx] .. enumType)
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else
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yield("public enum " .. typ.name .. enumType)
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end
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lastCombinedIdx = idx
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yield("{")
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end
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for _, flag in ipairs(typ.flag) do
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if flag.value then
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yield("\t"
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.. flag.name
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.. string.rep(" ", 22 - #(flag.name))
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.. " = "
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.. string.format(format, flag.value)
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.. ","
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)
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else
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yield("\t// Combined: "
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.. flag.name
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.. " = "
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.. table.concat(flag, " | ")
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)
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end
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end
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if lastCombinedIdx == -1 then
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yield("}")
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end
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end
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end
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function converter.funcs(func)
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yield("[DllImport(DllName, CallingConvention = CallingConvention.Cdecl)]")
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if func.ret.cpptype == "bool" then
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yield("[return: MarshalAs(UnmanagedType:I1)]")
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end
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local first = ""
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local args = "("
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for _, arg in ipairs(func.args) do
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local argtype = convert_type(arg)
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args = args .. first .. argtype .. " " .. arg.name
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first = ", "
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end
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yield("internal static extern unsafe " .. convert_type(func.ret) .. " bgfx_" .. func.cname .. args .. ");")
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end
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print(gen())
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-- printtable("idl types", idl.types)
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-- printtable("idl funcs", idl.funcs)
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@ -75,152 +75,7 @@ newaction {
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description = "Generate bgfx C# bindings.",
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execute = function ()
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local idl = require "idl"
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do
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local doxygen = require "doxygen"
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local source = doxygen.load "bgfx.idl"
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local f = assert(load(source, "bgfx.idl" , "t", idl))
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f()
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local codegen = require "codegen"
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codegen.nameconversion(idl.types, idl.funcs)
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end
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print("using System;")
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print("using System.Runtime.InteropServices;")
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print("using System.Security;")
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print("")
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print("internal struct NativeFunctions")
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print("{")
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local function ends_with(str, ending)
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return ending == "" or str:sub(-#ending) == ending
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end
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local function convert_type_0(arg)
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if arg.ctype == "uint64_t" then
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return "ulong"
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elseif arg.ctype == "uint32_t" then
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return "uint"
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elseif arg.ctype == "uint16_t" then
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return "ushort"
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elseif arg.ctype == "uint8_t" then
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return "byte"
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elseif arg.ctype == "const char*" then
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return "[MarshalAs(UnmanagedType.LPStr)] string"
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elseif ends_with(arg.fulltype, "Handle") then
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return arg.fulltype
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elseif ends_with(arg.fulltype, "::Enum") then
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return arg.fulltype:gsub("::Enum", "")
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end
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return arg.ctype
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end
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local function convert_type(arg)
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local ctype = convert_type_0(arg)
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return ctype:gsub("const ", "")
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end
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for _, typ in ipairs(idl.types) do
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if typ.handle then
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print("\tpublic struct " .. typ.name .. "{ public ushort idx; }")
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elseif ends_with(typ.name, "::Enum") then
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print("\tpublic enum " .. typ.typename)
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print("\t{")
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for _, enum in ipairs(typ.enum) do
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print("\t\t" .. enum.name .. ",")
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end
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print("\t}")
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print("")
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elseif typ.bits ~= nil then
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print("\t[Flags]")
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local format = "0x%08x"
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if typ.bits == 64 then
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format = "0x%016x"
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print("\tpublic enum " .. typ.name .. " : long")
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elseif typ.bits == 16 then
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format = "0x%04x"
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print("\tpublic enum " .. typ.name .. " : short")
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else
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print("\tpublic enum " .. typ.name)
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end
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print("\t{")
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-- local shift = typ.flag.shift
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-- local base = typ.flag.base or 0
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-- local cap = 1 << (typ.flag.range or 0)
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if typ.const then
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for _, flag in ipairs(typ.flag) do
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print("\t\t"
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.. flag.name
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.. string.rep(" ", 22 - #(flag.name))
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.. " = "
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.. string.format(format, flag.value)
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.. ","
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)
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end
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else
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for idx, flag in ipairs(typ.flag) do
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local hex = 1<<(idx-1)
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if flag.value then
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hex = 1<<(flag.value-1)
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end
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print("\t\t"
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.. flag.name
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.. string.rep(" ", 22 - #(flag.name))
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.. " = "
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.. string.format(format, hex)
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.. ","
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)
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end
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end
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print("\t}")
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print("")
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end
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end
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print("");
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for idx, func in ipairs(idl.funcs) do
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print("\t[DllImport(DllName, CallingConvention = CallingConvention.Cdecl)]")
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if func.ret.cpptype == "bool" then
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print("\t[return: MarshalAs(UnmanagedType:I1)]")
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end
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local first = ""
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local args = "("
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for _, arg in ipairs(func.args) do
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local argtype = convert_type(arg)
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args = args .. first .. argtype .. " " .. arg.name
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first = ", "
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end
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print("\tinternal static extern unsafe " .. convert_type(func.ret) .. " bgfx_" .. func.cname .. args .. ");")
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print("")
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end
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print("#if DEBUG")
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print("\tconst string DllName = \"bgfx_debug.dll\";")
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print("#else")
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print("\tconst string DllName = \"bgfx.dll\";")
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print("#endif")
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print("}")
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-- printtable("idl types", idl.types)
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-- printtable("idl funcs", idl.funcs)
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local csidl = require "csharp"
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os.exit()
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end
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