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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "blastem.h" //for headless global
#include "render.h" //for render_errorbox
char * alloc_concat(char * first, char * second)
{
int flen = strlen(first);
int slen = strlen(second);
char * ret = malloc(flen + slen + 1);
memcpy(ret, first, flen);
memcpy(ret+flen, second, slen+1);
return ret;
}
char * alloc_concat_m(int num_parts, char ** parts)
{
int total = 0;
for (int i = 0; i < num_parts; i++) {
total += strlen(parts[i]);
}
char * ret = malloc(total + 1);
*ret = 0;
for (int i = 0; i < num_parts; i++) {
strcat(ret, parts[i]);
}
return ret;
}
long file_size(FILE * f)
{
fseek(f, 0, SEEK_END);
long fsize = ftell(f);
fseek(f, 0, SEEK_SET);
return fsize;
}
char * strip_ws(char * text)
{
while (*text && (!isprint(*text) || isblank(*text)))
{
text++;
}
char * ret = text;
text = ret + strlen(ret) - 1;
while (text > ret && (!isprint(*text) || isblank(*text)))
{
*text = 0;
text--;
}
return ret;
}
char * split_keyval(char * text)
{
while (*text && !isblank(*text))
{
text++;
}
if (!*text) {
return text;
}
*text = 0;
return text+1;
}
uint32_t nearest_pow2(uint32_t val)
{
uint32_t ret = 1;
while (ret < val)
{
ret = ret << 1;
}
return ret;
}
static char * exe_str;
void set_exe_str(char * str)
{
exe_str = str;
}
void fatal_error(char *format, ...)
{
va_list args;
va_start(args, format);
if (!headless) {
//take a guess at the final size
size_t size = strlen(format) * 2;
char *buf = malloc(size);
size_t actual = vsnprintf(buf, size, format, args);
if (actual >= size) {
actual++;
free(buf);
buf = malloc(actual);
va_end(args);
va_start(args, format);
vsnprintf(buf, actual, format, args);
}
fputs(buf, stderr);
render_errorbox("Fatal Error", buf);
free(buf);
} else {
vfprintf(stderr, format, args);
}
va_end(args);
exit(1);
}
void warning(char *format, ...)
{
va_list args;
va_start(args, format);
#ifndef _WIN32
if (headless || (isatty(STDERR_FILENO) && isatty(STDIN_FILENO))) {
vfprintf(stderr, format, args);
} else {
#endif
size_t size = strlen(format) * 2;
char *buf = malloc(size);
size_t actual = vsnprintf(buf, size, format, args);
if (actual >= size) {
actual++;
free(buf);
buf = malloc(actual);
va_end(args);
va_start(args, format);
vsnprintf(buf, actual, format, args);
}
fputs(buf, stderr);
render_infobox("BlastEm Info", buf);
free(buf);
#ifndef _WIN32
}
#endif
va_end(args);
}
void info_message(char *format, ...)
{
va_list args;
va_start(args, format);
#ifndef _WIN32
if (headless || (isatty(STDOUT_FILENO) && isatty(STDIN_FILENO))) {
vprintf(format, args);
} else {
#endif
size_t size = strlen(format) * 2;
char *buf = malloc(size);
size_t actual = vsnprintf(buf, size, format, args);
if (actual >= size) {
actual++;
free(buf);
buf = malloc(actual);
va_end(args);
va_start(args, format);
vsnprintf(buf, actual, format, args);
}
fputs(buf, stdout);
render_infobox("BlastEm Info", buf);
free(buf);
#ifndef _WIN32
}
#endif
va_end(args);
}
#ifdef _WIN32
#include <windows.h>
#include <shlobj.h>
char * get_home_dir()
{
static char path[MAX_PATH];
SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path);
return path;
}
char * get_exe_dir()
{
static char path[MAX_PATH];
HMODULE module = GetModuleHandleA(NULL);
GetModuleFileNameA(module, path, MAX_PATH);
int pathsize = strlen(path);
for(char * cur = path + pathsize - 1; cur != path; cur--)
{
if (*cur == '\\') {
*cur = 0;
break;
}
}
return path;
}
#else
char * get_home_dir()
{
return getenv("HOME");
}
char * readlink_alloc(char * path)
{
char * linktext = NULL;
ssize_t linksize = 512;
ssize_t cursize = 0;
do {
if (linksize > cursize) {
cursize = linksize;
if (linktext) {
free(linktext);
}
}
linktext = malloc(cursize);
linksize = readlink(path, linktext, cursize-1);
if (linksize == -1) {
perror("readlink");
free(linktext);
return NULL;
}
} while ((linksize+1) > cursize);
linktext[linksize] = 0;
return linktext;
}
char * get_exe_dir()
{
static char * exe_dir;
if (!exe_dir) {
char * cur;
#ifdef HAS_PROC
char * linktext = readlink_alloc("/proc/self/exe");
if (!linktext) {
goto fallback;
}
int linksize = strlen(linktext);
for(cur = linktext + linksize - 1; cur != linktext; cur--)
{
if (*cur == '/') {
*cur = 0;
break;
}
}
if (cur == linktext) {
free(linktext);
fallback:
#endif
if (!exe_str) {
fputs("/proc/self/exe is not available and set_exe_str was not called!", stderr);
}
int pathsize = strlen(exe_str);
for(cur = exe_str + pathsize - 1; cur != exe_str; cur--)
{
if (*cur == '/') {
exe_dir = malloc(cur-exe_str+1);
memcpy(exe_dir, exe_str, cur-exe_str);
exe_dir[cur-exe_str] = 0;
break;
}
}
#ifdef HAS_PROC
} else {
exe_dir = linktext;
}
#endif
}
return exe_dir;
}
#endif
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