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util.cpp
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162 lines (136 loc) · 3.66 KB
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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "util.h"
#include <stdarg.h>
#ifdef _MSC_VER
#define vsnprintf _vsnprintf
#endif
void error(const char *s, ...) {
char buf[1024];
va_list va;
va_start(va, s);
vsnprintf(buf, 1024, s, va);
va_end(va);
fprintf(stderr, "ERROR: %s!\n", buf);
exit(1);
}
void warning(const char *s, ...) {
char buf[1024];
va_list va;
va_start(va, s);
vsnprintf(buf, 1024, s, va);
va_end(va);
fprintf(stderr, "WARNING: %s!\n", buf);
}
int scumm_stricmp(const char *s1, const char *s2) {
byte l1, l2;
do {
// Don't use ++ inside tolower, in case the macro uses its
// arguments more than once.
l1 = (byte) * s1++;
l1 = tolower(l1);
l2 = (byte) * s2++;
l2 = tolower(l2);
} while (l1 == l2 && l1 != 0);
return l1 - l2;
}
void debug(int level, const char *s, ...) {
char buf[1024];
va_list va;
va_start(va, s);
vsnprintf(buf, 1024, s, va);
va_end(va);
fprintf(stderr, "DEBUG: %s!\n", buf);
}
size_t writeByte(FILE *fp, uint8 b) {
fwrite(&b, 1, 1, fp);
return sizeof(b);
}
size_t writeUint16BE(FILE *fp, uint16 value) {
writeByte(fp, (uint8)(value >> 8));
writeByte(fp, (uint8)(value));
return sizeof(value);
}
size_t writeUint16LE(FILE *fp, uint16 value) {
writeByte(fp, (uint8)(value));
writeByte(fp, (uint8)(value >> 8));
return sizeof(value);
}
size_t writeUint32BE(FILE *fp, uint32 value) {
writeByte(fp, (uint8)(value >> 24));
writeByte(fp, (uint8)(value >> 16));
writeByte(fp, (uint8)(value >> 8));
writeByte(fp, (uint8)(value));
return sizeof(value);
}
size_t writeUint32LE(FILE *fp, uint32 value) {
writeByte(fp, (uint8)(value));
writeByte(fp, (uint8)(value >> 8));
writeByte(fp, (uint8)(value >> 16));
writeByte(fp, (uint8)(value >> 24));
return sizeof(value);
}
size_t writeString16(FILE *fp, const char *string) {
if (string == nullptr) {
// Like an empty string
return writeUint16LE(fp, 0);
}
size_t n = strlen(string);
if (n > 0xffff) {
return 0;
}
size_t written = 0;
written += writeUint16LE(fp, n);
fwrite(string, n, 1, fp);
written += n;
return written;
}
size_t writeString16Array16(FILE *fp, char const *const *array, uint16 elems) {
return writeArray<char const *, writeString16, uint16, writeUint16LE>(fp, array, elems);
}
//#define DEBUG
static const char padBuf[PADDING_ALIGNMENT] = {
#ifndef DEBUG
0
#else
0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C,
#endif
};
size_t writePadding(FILE *fp) {
long pos = ftell(fp);
pos = pos & PADDING_MASK; // Keep only remainder
if (pos == 0) {
return 0;
}
pos = PADDING_ALIGNMENT - pos;
fwrite(padBuf, pos, 1, fp);
return pos;
}
uint32 fileSize(FILE *fp) {
uint32 sz;
uint32 pos = ftell(fp);
fseek(fp, 0, SEEK_END);
sz = ftell(fp);
fseek(fp, pos, SEEK_SET);
return sz;
}