mirror of https://github.com/bkaradzic/bgfx
455 lines
9.7 KiB
Lua
455 lines
9.7 KiB
Lua
local codegen = require "codegen"
|
|
local idl = codegen.idl "bgfx.idl"
|
|
|
|
local csharp_template = [[
|
|
/*
|
|
* Copyright 2011-2022 Branimir Karadzic. All rights reserved.
|
|
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* AUTO GENERATED! DO NOT EDIT!
|
|
*
|
|
*/
|
|
|
|
using System;
|
|
using System.Runtime.InteropServices;
|
|
|
|
namespace Bgfx
|
|
{
|
|
public static partial class bgfx
|
|
{
|
|
$types
|
|
|
|
$funcs
|
|
}
|
|
}
|
|
]]
|
|
|
|
local csharp_dllname_template = [[
|
|
/*
|
|
* Copyright 2011-2022 Branimir Karadzic. All rights reserved.
|
|
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* AUTO GENERATED! DO NOT EDIT!
|
|
*
|
|
* Include this file in your build if you want to use the default DllImport
|
|
* names of bgfx.dll and bgfx_debug.dll. Otherwise, define your own
|
|
* partial class like the below with a const DllName for your use.
|
|
*
|
|
*/
|
|
|
|
namespace Bgfx
|
|
{
|
|
public static partial class bgfx
|
|
{
|
|
#if DEBUG
|
|
const string DllName = "bgfx_debug.dll";
|
|
#else
|
|
const string DllName = "bgfx.dll";
|
|
#endif
|
|
}
|
|
}
|
|
]]
|
|
|
|
local function hasPrefix(str, prefix)
|
|
return prefix == "" or str:sub(1, #prefix) == prefix
|
|
end
|
|
|
|
local function hasSuffix(str, suffix)
|
|
return suffix == "" or str:sub(-#suffix) == suffix
|
|
end
|
|
|
|
local function convert_type_0(arg)
|
|
|
|
if hasPrefix(arg.ctype, "uint64_t") then
|
|
return arg.ctype:gsub("uint64_t", "ulong")
|
|
elseif hasPrefix(arg.ctype, "int64_t") then
|
|
return arg.ctype:gsub("int64_t", "long")
|
|
elseif hasPrefix(arg.ctype, "uint32_t") then
|
|
return arg.ctype:gsub("uint32_t", "uint")
|
|
elseif hasPrefix(arg.ctype, "int32_t") then
|
|
return arg.ctype:gsub("int32_t", "int")
|
|
elseif hasPrefix(arg.ctype, "uint16_t") then
|
|
return arg.ctype:gsub("uint16_t", "ushort")
|
|
elseif hasPrefix(arg.ctype, "bgfx_view_id_t") then
|
|
return arg.ctype:gsub("bgfx_view_id_t", "ushort")
|
|
elseif hasPrefix(arg.ctype, "uint8_t") then
|
|
return arg.ctype:gsub("uint8_t", "byte")
|
|
elseif hasPrefix(arg.ctype, "uintptr_t") then
|
|
return arg.ctype:gsub("uintptr_t", "UIntPtr")
|
|
elseif arg.ctype == "bgfx_caps_gpu_t" then
|
|
return arg.ctype:gsub("bgfx_caps_gpu_t", "uint")
|
|
elseif arg.ctype == "const char*" then
|
|
return "[MarshalAs(UnmanagedType.LPStr)] string"
|
|
elseif hasPrefix(arg.ctype, "char") then
|
|
return arg.ctype:gsub("char", "byte")
|
|
elseif hasSuffix(arg.fulltype, "Handle") then
|
|
return arg.fulltype
|
|
elseif arg.ctype == "..." then
|
|
return "[MarshalAs(UnmanagedType.LPStr)] string args"
|
|
elseif arg.ctype == "va_list"
|
|
or arg.fulltype == "bx::AllocatorI*"
|
|
or arg.fulltype == "CallbackI*"
|
|
or arg.fulltype == "ReleaseFn" then
|
|
return "IntPtr"
|
|
elseif arg.fulltype == "const ViewId*" then
|
|
return "ushort*"
|
|
end
|
|
|
|
return arg.fulltype
|
|
end
|
|
|
|
local function convert_type(arg)
|
|
local ctype = convert_type_0(arg)
|
|
ctype = ctype:gsub("::Enum", "")
|
|
ctype = ctype:gsub("const ", "")
|
|
ctype = ctype:gsub(" &", "*")
|
|
ctype = ctype:gsub("&", "*")
|
|
return ctype
|
|
end
|
|
|
|
local function convert_struct_type(arg)
|
|
local ctype = convert_type(arg)
|
|
if hasPrefix(arg.ctype, "bool") then
|
|
ctype = ctype:gsub("bool", "byte")
|
|
end
|
|
return ctype
|
|
end
|
|
|
|
local function convert_ret_type(arg)
|
|
local ctype = convert_type(arg)
|
|
if hasPrefix(ctype, "[MarshalAs(UnmanagedType.LPStr)]") then
|
|
return "IntPtr"
|
|
end
|
|
return ctype
|
|
end
|
|
|
|
local converter = {}
|
|
local yield = coroutine.yield
|
|
local indent = ""
|
|
|
|
local gen = {}
|
|
|
|
function gen.gen()
|
|
local r = csharp_template:gsub("$(%l+)", function(what)
|
|
local tmp = {}
|
|
for _, object in ipairs(idl[what]) do
|
|
local co = coroutine.create(converter[what])
|
|
local any
|
|
while true do
|
|
local ok, v = coroutine.resume(co, object)
|
|
assert(ok, debug.traceback(co, v))
|
|
if not v then
|
|
break
|
|
end
|
|
table.insert(tmp, v)
|
|
any = true
|
|
end
|
|
if any and tmp[#tmp] ~= "" then
|
|
table.insert(tmp, "")
|
|
end
|
|
end
|
|
return table.concat(tmp, "\n\t")
|
|
end)
|
|
return r
|
|
end
|
|
|
|
function gen.gen_dllname()
|
|
return csharp_dllname_template
|
|
end
|
|
|
|
local combined = { "State", "Stencil", "Buffer", "Texture", "Sampler", "Reset" }
|
|
|
|
for _, v in ipairs(combined) do
|
|
combined[v] = {}
|
|
end
|
|
|
|
local lastCombinedFlag
|
|
|
|
local function FlagBlock(typ)
|
|
local format = "0x%08x"
|
|
local enumType = " : uint"
|
|
if typ.bits == 64 then
|
|
format = "0x%016x"
|
|
enumType = " : ulong"
|
|
elseif typ.bits == 16 then
|
|
format = "0x%04x"
|
|
enumType = " : ushort"
|
|
end
|
|
|
|
yield("[Flags]")
|
|
yield("public enum " .. typ.name .. "Flags" .. enumType)
|
|
yield("{")
|
|
|
|
for idx, flag in ipairs(typ.flag) do
|
|
|
|
if flag.comment ~= nil then
|
|
if idx ~= 1 then
|
|
yield("")
|
|
end
|
|
|
|
yield("\t/// <summary>")
|
|
for _, comment in ipairs(flag.comment) do
|
|
yield("\t/// " .. comment)
|
|
end
|
|
yield("\t/// </summary>")
|
|
end
|
|
|
|
local flagName = flag.name:gsub("_", "")
|
|
yield("\t"
|
|
.. flagName
|
|
.. string.rep(" ", 22 - #(flagName))
|
|
.. " = "
|
|
.. string.format(flag.format or format, flag.value)
|
|
.. ","
|
|
)
|
|
end
|
|
|
|
if typ.shift then
|
|
yield("\t"
|
|
.. "Shift"
|
|
.. string.rep(" ", 22 - #("Shift"))
|
|
.. " = "
|
|
.. flag.shift
|
|
)
|
|
end
|
|
|
|
-- generate Mask
|
|
if typ.mask then
|
|
yield("\t"
|
|
.. "Mask"
|
|
.. string.rep(" ", 22 - #("Mask"))
|
|
.. " = "
|
|
.. string.format(format, flag.mask)
|
|
)
|
|
end
|
|
|
|
yield("}")
|
|
end
|
|
|
|
local function lastCombinedFlagBlock()
|
|
if lastCombinedFlag then
|
|
local typ = combined[lastCombinedFlag]
|
|
if typ then
|
|
FlagBlock(combined[lastCombinedFlag])
|
|
yield("")
|
|
end
|
|
lastCombinedFlag = nil
|
|
end
|
|
end
|
|
|
|
local enum = {}
|
|
|
|
local function convert_array(member)
|
|
if string.find(member.array, "::") then
|
|
return string.format("[%d]", enum[member.array])
|
|
else
|
|
return member.array
|
|
end
|
|
end
|
|
|
|
local function convert_struct_member(member)
|
|
if member.array then
|
|
return "fixed " .. convert_struct_type(member) .. " " .. member.name .. convert_array(member)
|
|
else
|
|
return convert_struct_type(member) .. " " .. member.name
|
|
end
|
|
end
|
|
|
|
local namespace = ""
|
|
|
|
function converter.types(typ)
|
|
if typ.handle then
|
|
lastCombinedFlagBlock()
|
|
|
|
yield("public struct " .. typ.name .. " {")
|
|
yield(" public ushort idx;")
|
|
yield(" public bool Valid => idx != UInt16.MaxValue;")
|
|
yield("}")
|
|
elseif hasSuffix(typ.name, "::Enum") then
|
|
lastCombinedFlagBlock()
|
|
|
|
yield("public enum " .. typ.typename)
|
|
yield("{")
|
|
for idx, enum in ipairs(typ.enum) do
|
|
|
|
if enum.comment ~= nil then
|
|
if idx ~= 1 then
|
|
yield("")
|
|
end
|
|
|
|
yield("\t/// <summary>")
|
|
for _, comment in ipairs(enum.comment) do
|
|
yield("\t/// " .. comment)
|
|
end
|
|
yield("\t/// </summary>")
|
|
end
|
|
|
|
yield("\t" .. enum.name .. ",")
|
|
end
|
|
yield("");
|
|
yield("\tCount")
|
|
yield("}")
|
|
|
|
enum["[" .. typ.typename .. "::Count]"] = #typ.enum
|
|
|
|
elseif typ.bits ~= nil then
|
|
local prefix, name = typ.name:match "(%u%l+)(.*)"
|
|
if prefix ~= lastCombinedFlag then
|
|
lastCombinedFlagBlock()
|
|
lastCombinedFlag = prefix
|
|
end
|
|
local combinedFlag = combined[prefix]
|
|
if combinedFlag then
|
|
combinedFlag.bits = typ.bits
|
|
combinedFlag.name = prefix
|
|
local flags = combinedFlag.flag or {}
|
|
combinedFlag.flag = flags
|
|
local lookup = combinedFlag.lookup or {}
|
|
combinedFlag.lookup = lookup
|
|
for _, flag in ipairs(typ.flag) do
|
|
local flagName = name .. flag.name:gsub("_", "")
|
|
local value = flag.value
|
|
if value == nil then
|
|
-- It's a combined flag
|
|
value = 0
|
|
for _, v in ipairs(flag) do
|
|
value = value | assert(lookup[name .. v], v .. " is not defined for " .. flagName)
|
|
end
|
|
end
|
|
lookup[flagName] = value
|
|
table.insert(flags, {
|
|
name = flagName,
|
|
value = value,
|
|
comment = flag.comment,
|
|
})
|
|
end
|
|
|
|
if typ.shift then
|
|
table.insert(flags, {
|
|
name = name .. "Shift",
|
|
value = typ.shift,
|
|
format = "%d",
|
|
comment = typ.comment,
|
|
})
|
|
end
|
|
|
|
if typ.mask then
|
|
-- generate Mask
|
|
table.insert(flags, {
|
|
name = name .. "Mask",
|
|
value = typ.mask,
|
|
comment = typ.comment,
|
|
})
|
|
lookup[name .. "Mask"] = typ.mask
|
|
end
|
|
else
|
|
FlagBlock(typ)
|
|
end
|
|
elseif typ.struct ~= nil then
|
|
|
|
local skip = false
|
|
|
|
if typ.namespace ~= nil then
|
|
if namespace ~= typ.namespace then
|
|
yield("public unsafe struct " .. typ.namespace)
|
|
yield("{")
|
|
namespace = typ.namespace
|
|
indent = "\t"
|
|
end
|
|
elseif namespace ~= "" then
|
|
indent = ""
|
|
namespace = ""
|
|
skip = true
|
|
end
|
|
|
|
if not skip then
|
|
yield(indent .. "public unsafe struct " .. typ.name)
|
|
yield(indent .. "{")
|
|
end
|
|
|
|
for _, member in ipairs(typ.struct) do
|
|
yield(
|
|
indent .. "\tpublic " .. convert_struct_member(member) .. ";"
|
|
)
|
|
end
|
|
|
|
yield(indent .. "}")
|
|
end
|
|
end
|
|
|
|
function converter.funcs(func)
|
|
|
|
if func.cpponly then
|
|
return
|
|
end
|
|
|
|
if func.comments ~= nil then
|
|
yield("/// <summary>")
|
|
for _, line in ipairs(func.comments) do
|
|
yield("/// " .. line)
|
|
end
|
|
yield("/// </summary>")
|
|
yield("///")
|
|
|
|
local hasParams = false
|
|
|
|
for _, arg in ipairs(func.args) do
|
|
if arg.comment ~= nil then
|
|
local comment = table.concat(arg.comment, " ")
|
|
|
|
yield("/// <param name=\""
|
|
.. arg.name
|
|
.. "\">"
|
|
.. comment
|
|
.. "</param>"
|
|
)
|
|
|
|
hasParams = true
|
|
end
|
|
end
|
|
|
|
if hasParams then
|
|
yield("///")
|
|
end
|
|
end
|
|
|
|
yield("[DllImport(DllName, EntryPoint=\"bgfx_" .. func.cname .. "\", CallingConvention = CallingConvention.Cdecl)]")
|
|
|
|
if func.ret.cpptype == "bool" then
|
|
yield("[return: MarshalAs(UnmanagedType.I1)]")
|
|
end
|
|
|
|
local args = {}
|
|
if func.this ~= nil then
|
|
args[1] = func.this_type.type .. "* _this"
|
|
end
|
|
for _, arg in ipairs(func.args) do
|
|
table.insert(args, convert_type(arg) .. " " .. arg.name)
|
|
end
|
|
yield("public static extern unsafe " .. convert_ret_type(func.ret) .. " " .. func.cname
|
|
.. "(" .. table.concat(args, ", ") .. ");")
|
|
end
|
|
|
|
-- printtable("idl types", idl.types)
|
|
-- printtable("idl funcs", idl.funcs)
|
|
|
|
function gen.write(codes, outputfile)
|
|
local out = assert(io.open(outputfile, "wb"))
|
|
out:write(codes)
|
|
out:close()
|
|
print("Generating: " .. outputfile)
|
|
end
|
|
|
|
if (...) == nil then
|
|
-- run `lua bindings-cs.lua` in command line
|
|
print(gen.gen())
|
|
end
|
|
|
|
return gen
|