IDL: Combine State, Stencil, Buffer, Texture, Sampler, and Reset states.

This commit is contained in:
Бранимир Караџић 2019-07-03 16:46:17 -07:00
parent 69072067ef
commit c4a5103be2
2 changed files with 208 additions and 146 deletions

207
scripts/csharp.lua Normal file
View File

@ -0,0 +1,207 @@
local idl = require "idl"
do
local doxygen = require "doxygen"
local source = doxygen.load "bgfx.idl"
local f = assert(load(source, "bgfx.idl" , "t", idl))
f()
local codegen = require "codegen"
codegen.nameconversion(idl.types, idl.funcs)
end
local csharp_template = [[
using System;
using System.Runtime.InteropServices;
using System.Security;
internal struct NativeFunctions
{
$types
$funcs
#if DEBUG
const string DllName = "bgfx_debug.dll";
#else
const string DllName = "bgfx.dll";
#endif
}
]]
local function hasPrefix(str, prefix)
return prefix == "" or str:sub(1, #prefix) == prefix
end
local function hasSuffix(str, suffix)
return suffix == "" or str:sub(-#suffix) == suffix
end
local function convert_type_0(arg)
if arg.ctype == "uint64_t" then
return "ulong"
elseif arg.ctype == "uint32_t" then
return "uint"
elseif arg.ctype == "uint16_t" then
return "ushort"
elseif arg.ctype == "uint8_t" then
return "byte"
elseif arg.ctype == "const char*" then
return "[MarshalAs(UnmanagedType.LPStr)] string"
elseif hasSuffix(arg.fulltype, "Handle") then
return arg.fulltype
elseif hasSuffix(arg.fulltype, "::Enum") then
return arg.fulltype:gsub("::Enum", "")
end
return arg.ctype
end
local function convert_type(arg)
local ctype = convert_type_0(arg)
return ctype:gsub("const ", "")
end
local converter = {}
local yield = coroutine.yield
local function gen()
local r = csharp_template:gsub("$(%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 then
table.insert(tmp, "")
end
end
return table.concat(tmp, "\n\t")
end)
return r
end
local lastCombinedIdx = -1
local combined = { "State", "Stencil", "Buffer", "Texture", "Sampler", "Reset" }
local function isCombinedBlock(str)
for idx, prefix in ipairs(combined) do
if hasPrefix(str, prefix) then
return idx
end
end
return -1
end
local function endCombinedBlock()
if lastCombinedIdx ~= -1 then
yield("}")
end
lastCombinedIdx = -1
end
function converter.types(typ)
if typ.handle then
endCombinedBlock()
yield("public struct " .. typ.name .. "{ public ushort idx; }")
elseif hasSuffix(typ.name, "::Enum") then
endCombinedBlock()
yield("public enum " .. typ.typename)
yield("{")
for _, enum in ipairs(typ.enum) do
yield("\t" .. enum.name .. ",")
end
yield("}")
elseif typ.bits ~= nil then
local idx = isCombinedBlock(typ.name)
if idx ~= lastCombinedIdx then
endCombinedBlock()
end
local format = "0x%08x"
local enumType = ""
if typ.bits == 64 then
format = "0x%016x"
enumType = " : ulong"
elseif typ.bits == 16 then
format = "0x%04x"
enumType = " : ushort"
end
if lastCombinedIdx == -1 then
yield("[Flags]")
if idx ~= -1 then
yield("public enum " .. combined[idx] .. enumType)
else
yield("public enum " .. typ.name .. enumType)
end
lastCombinedIdx = idx
yield("{")
end
for _, flag in ipairs(typ.flag) do
if flag.value then
yield("\t"
.. flag.name
.. string.rep(" ", 22 - #(flag.name))
.. " = "
.. string.format(format, flag.value)
.. ","
)
else
yield("\t// Combined: "
.. flag.name
.. " = "
.. table.concat(flag, " | ")
)
end
end
if lastCombinedIdx == -1 then
yield("}")
end
end
end
function converter.funcs(func)
yield("[DllImport(DllName, CallingConvention = CallingConvention.Cdecl)]")
if func.ret.cpptype == "bool" then
yield("[return: MarshalAs(UnmanagedType:I1)]")
end
local first = ""
local args = "("
for _, arg in ipairs(func.args) do
local argtype = convert_type(arg)
args = args .. first .. argtype .. " " .. arg.name
first = ", "
end
yield("internal static extern unsafe " .. convert_type(func.ret) .. " bgfx_" .. func.cname .. args .. ");")
end
print(gen())
-- printtable("idl types", idl.types)
-- printtable("idl funcs", idl.funcs)

View File

@ -75,152 +75,7 @@ newaction {
description = "Generate bgfx C# bindings.", description = "Generate bgfx C# bindings.",
execute = function () execute = function ()
local idl = require "idl" local csidl = require "csharp"
do
local doxygen = require "doxygen"
local source = doxygen.load "bgfx.idl"
local f = assert(load(source, "bgfx.idl" , "t", idl))
f()
local codegen = require "codegen"
codegen.nameconversion(idl.types, idl.funcs)
end
print("using System;")
print("using System.Runtime.InteropServices;")
print("using System.Security;")
print("")
print("internal struct NativeFunctions")
print("{")
local function ends_with(str, ending)
return ending == "" or str:sub(-#ending) == ending
end
local function convert_type_0(arg)
if arg.ctype == "uint64_t" then
return "ulong"
elseif arg.ctype == "uint32_t" then
return "uint"
elseif arg.ctype == "uint16_t" then
return "ushort"
elseif arg.ctype == "uint8_t" then
return "byte"
elseif arg.ctype == "const char*" then
return "[MarshalAs(UnmanagedType.LPStr)] string"
elseif ends_with(arg.fulltype, "Handle") then
return arg.fulltype
elseif ends_with(arg.fulltype, "::Enum") then
return arg.fulltype:gsub("::Enum", "")
end
return arg.ctype
end
local function convert_type(arg)
local ctype = convert_type_0(arg)
return ctype:gsub("const ", "")
end
for _, typ in ipairs(idl.types) do
if typ.handle then
print("\tpublic struct " .. typ.name .. "{ public ushort idx; }")
elseif ends_with(typ.name, "::Enum") then
print("\tpublic enum " .. typ.typename)
print("\t{")
for _, enum in ipairs(typ.enum) do
print("\t\t" .. enum.name .. ",")
end
print("\t}")
print("")
elseif typ.bits ~= nil then
print("\t[Flags]")
local format = "0x%08x"
if typ.bits == 64 then
format = "0x%016x"
print("\tpublic enum " .. typ.name .. " : long")
elseif typ.bits == 16 then
format = "0x%04x"
print("\tpublic enum " .. typ.name .. " : short")
else
print("\tpublic enum " .. typ.name)
end
print("\t{")
-- local shift = typ.flag.shift
-- local base = typ.flag.base or 0
-- local cap = 1 << (typ.flag.range or 0)
if typ.const then
for _, flag in ipairs(typ.flag) do
print("\t\t"
.. flag.name
.. string.rep(" ", 22 - #(flag.name))
.. " = "
.. string.format(format, flag.value)
.. ","
)
end
else
for idx, flag in ipairs(typ.flag) do
local hex = 1<<(idx-1)
if flag.value then
hex = 1<<(flag.value-1)
end
print("\t\t"
.. flag.name
.. string.rep(" ", 22 - #(flag.name))
.. " = "
.. string.format(format, hex)
.. ","
)
end
end
print("\t}")
print("")
end
end
print("");
for idx, func in ipairs(idl.funcs) do
print("\t[DllImport(DllName, CallingConvention = CallingConvention.Cdecl)]")
if func.ret.cpptype == "bool" then
print("\t[return: MarshalAs(UnmanagedType:I1)]")
end
local first = ""
local args = "("
for _, arg in ipairs(func.args) do
local argtype = convert_type(arg)
args = args .. first .. argtype .. " " .. arg.name
first = ", "
end
print("\tinternal static extern unsafe " .. convert_type(func.ret) .. " bgfx_" .. func.cname .. args .. ");")
print("")
end
print("#if DEBUG")
print("\tconst string DllName = \"bgfx_debug.dll\";")
print("#else")
print("\tconst string DllName = \"bgfx.dll\";")
print("#endif")
print("}")
-- printtable("idl types", idl.types)
-- printtable("idl funcs", idl.funcs)
os.exit() os.exit()
end end