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Merge pull request #165 from frink/flags

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Adding CFLAGS to generator.lua
This commit is contained in:
Victor Bombi
2020-10-29 20:37:34 +01:00
committed by GitHub
parent ebfa448e25 9828871a89
commit aa1b438f7f
4 changed files with 24 additions and 10 deletions
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2
README.md
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@@ -31,6 +31,7 @@ Notes:
# using generator
```
* this is only needed (before compilation) if you want an imgui version different from the one provided, otherwise generation is already done.
* you will need LuaJIT (https://github.com/LuaJIT/LuaJIT.git better 2.1 branch) or precompiled for linux/macOS/windows in https://luapower.com/luajit/download
* you need to use also a C++ compiler for doing preprocessing: gcc (In windows MinGW-W64-builds for example), clang or cl (MSVC). (this repo was done with gcc)
@@ -40,6 +41,7 @@ Notes:
* edit config_generator.lua for adding includes needed by your chosen backends (vulkan needs that).
* Run generator.bat or generator.sh with gcc, clang or cl and LuaJIT on your PATH.
* as a result some files are generated: `cimgui.cpp`, `cimgui.h` and `cimgui_impl.h` for compiling and some lua/json files with information about the binding: `definitions.json` with function info, `structs_and_enums.json` with struct and enum info, `impl_definitions.json` with functions from the backends info.
* You can pass compiler flags to generator.sh or generator.bat at the end of the call to further specify the compiler behavior. (e.g. -DIMGUI_USER_CONFIG or -DIMGUI_USE_WCHAR32)
# generate binding
* C interface is exposed by cimgui.h when you define CIMGUI_DEFINE_ENUMS_AND_STRUCTS

2
generator/generator.bat
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@@ -17,7 +17,7 @@ set PATH=%PATH%;C:\anima;C:\mingws\i686-7.2.0-release-posix-dwarf-rt_v5-rev1\min
:: arg[1] compiler name gcc, clang or cl
:: arg[2] options as words in one string: internal for imgui_internal generation, freetype for freetype generation
:: examples: "" "internal" "internal freetype"
:: arg[3..n] name of implementations to generate
:: arg[3..n] name of implementations to generate and/or CFLAGS (e.g. -DIMGUI_USER_CONFIG or -DIMGUI_USE_WCHAR32)
luajit ./generator.lua gcc "internal" glfw opengl3 opengl2 sdl
::leave console open

28
generator/generator.lua
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@@ -8,12 +8,28 @@ local script_args = {...}
local COMPILER = script_args[1]
local INTERNAL_GENERATION = script_args[2]:match("internal") and true or false
local FREETYPE_GENERATION = script_args[2]:match("freetype") and true or false
local CFLAGS = ""
local CPRE,CTEST
--get implementations
local implementations = {}
for i=3,#script_args do
if script_args[i]:match(COMPILER == cl and "^/" or "^%-") then
local key, value = script_args[i]:match("^(.+)=(.+)$")
if key and value then
CFLAGS = CFLAGS .. " " .. key .. "=\"" .. value:gsub("\"", "\\\"") .. "\"";
else
CFLAGS = CFLAGS .. " " .. script_args[i]
end
else
table.insert(implementations,script_args[i])
end
end
if COMPILER == "gcc" or COMPILER == "clang" then
CPRE = COMPILER..[[ -E -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -DIMGUI_API="" -DIMGUI_IMPL_API="" ]]
CPRE = COMPILER..[[ -E -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -DIMGUI_API="" -DIMGUI_IMPL_API="" ]] .. CFLAGS
CTEST = COMPILER.." --version"
elseif COMPILER == "cl" then
CPRE = COMPILER..[[ /E /DIMGUI_DISABLE_OBSOLETE_FUNCTIONS /DIMGUI_API="" /DIMGUI_IMPL_API="" ]]
CPRE = COMPILER..[[ /E /DIMGUI_DISABLE_OBSOLETE_FUNCTIONS /DIMGUI_API="" /DIMGUI_IMPL_API="" ]] .. CFLAGS
CTEST = COMPILER
else
print("Working without compiler ")
@@ -42,10 +58,6 @@ assert(HAVE_COMPILER,"gcc, clang or cl needed to run script")
print("HAVE_COMPILER",HAVE_COMPILER)
print("INTERNAL_GENERATION",INTERNAL_GENERATION)
print("FREETYPE_GENERATION",FREETYPE_GENERATION)
--get implementations
local implementations = {}
for i=3,#script_args do table.insert(implementations,script_args[i]) end
--------------------------------------------------------------------------
--this table has the functions to be skipped in generation
--------------------------------------------------------------------------
@@ -124,7 +136,8 @@ local func_implementation = cpp2ffi.func_implementation
-------------------functions for getting and setting defines
local function get_defines(t)
if COMPILER == "cl" then print"can't get defines with cl compiler"; return {} end
local pipe,err = io.popen(COMPILER..[[ -E -dM -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -DIMGUI_API="" -DIMGUI_IMPL_API="" ../imgui/imgui.h]],"r")
print(COMPILER..[[ -E -dM -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -DIMGUI_API="" -DIMGUI_IMPL_API="" ../imgui/imgui.h]] .. CFLAGS)
local pipe,err = io.popen(COMPILER..[[ -E -dM -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -DIMGUI_API="" -DIMGUI_IMPL_API="" ../imgui/imgui.h]] .. CFLAGS,"r")
local defines = {}
while true do
local line = pipe:read"*l"
@@ -335,7 +348,6 @@ end
print("IMGUI_VERSION",imgui_version)
--get some defines----------------------------
gdefines = get_defines{"IMGUI_VERSION","FLT_MAX"}
--funtion for parsing imgui headers
local function parseImGuiHeader(header,names)

2
generator/generator.sh
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@@ -15,5 +15,5 @@
# arg[1] compiler name gcc, clang, or cl
# arg[2] options as words in one string: internal for imgui_internal generation, freetype for freetype generation
# examples: "" "internal" "internal freetype"
# arg[3..n] name of implementations to generate
# arg[3..n] name of implementations to generate and/or CLFLAGS (e.g. -DIMGUI_USER_CONFIG or -DIMGUI_USE_WCHAR32)
luajit ./generator.lua gcc "internal" glfw opengl3 opengl2 sdl