Added better resolution of exe directory; should fix #1

This commit is contained in:
rxi 2019-12-31 10:49:07 +00:00
parent 3c59abba0b
commit ba86b58b80

View file

@ -2,13 +2,58 @@
#include <SDL2/SDL.h>
#include "api/api.h"
#include "renderer.h"
#ifdef _WIN32
#include <windows.h>
#elif __linux__
#include <unistd.h>
#elif __APPLE__
#include <mach-o/dyld.h>
#endif
SDL_Window *window;
static double get_scale(void) {
float dpi;
SDL_GetDisplayDPI(0, NULL, &dpi, NULL);
#if _WIN32
return dpi / 96.0;
#elif __APPLE__
return dpi / 72.0;
#else
return 1.0;
#endif
}
const void get_exe_dir(char *buf, int sz) {
#if _WIN32
int len = GetModuleFileName(NULL, buf, sz - 1);
buf[len] = '\0';
#elif __linux__
char path[512];
sprintf(path, "/proc/%d/exe", getpid());
int len = readlink(path, buf, sz - 1);
buf[len] = '\0';
#elif __APPLE__
unsigned size = sz;
_NSGetExecutablePath(buf, &size);
#else
strcpy(buf, ".")
#endif
for (int i = strlen(buf) - 1; i > 0; i--) {
if (buf[i] == '/' || buf[i] == '\\') {
buf[i] = '\0';
break;
}
}
}
int main(int argc, char **argv) {
#ifdef _WIN32
HINSTANCE lib = LoadLibrary("user32.dll");
@ -46,24 +91,21 @@ int main(int argc, char **argv) {
lua_setglobal(L, "_ARGS");
float dpi;
SDL_GetDisplayDPI(0, NULL, &dpi, NULL);
#if _WIN32
lua_pushnumber(L, dpi / 96.0);
#elif __APPLE__
lua_pushnumber(L, dpi / 72.0);
#else
lua_pushnumber(L, 1.0);
#endif
lua_pushnumber(L, get_scale());
lua_setglobal(L, "_SCALE");
char exedir[2048];
get_exe_dir(exedir, sizeof(exedir));
lua_pushstring(L, exedir);
lua_setglobal(L, "_EXEDIR");
(void) luaL_dostring(L,
"local core\n"
"xpcall(function()\n"
" _SCALE = tonumber(os.getenv(\"LITE_SCALE\")) or _SCALE\n"
" _PATHSEP = package.config:sub(1, 1)\n"
" _EXEDIR = _ARGS[1]:match('(.*)[/\\\\].*$')\n"
" package.path = _EXEDIR .. '/data/?.lua;' .. package.path\n"
" package.path = _EXEDIR .. '/data/?/init.lua;' .. package.path\n"
" core = require('core')\n"