obs-StreamFX/source/util-math.cpp

96 lines
2.3 KiB
C++
Raw Normal View History

/*
* Modern effects for a modern Streamer
* Copyright (C) 2017 Michael Fabian Dirks
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "util-math.h"
#include "util-memory.h"
#include <malloc.h>
#include <stdlib.h>
#include <cctype>
void* util::vec3a::operator new(size_t count) {
return _aligned_malloc(count, 16);
}
void* util::vec3a::operator new[](size_t count) {
return _aligned_malloc(count, 16);
}
void util::vec3a::operator delete(void* p) {
_aligned_free(p);
}
void util::vec3a::operator delete[](void* p) {
_aligned_free(p);
}
void* util::vec4a::operator new(size_t count) {
return _aligned_malloc(count, 16);
}
void* util::vec4a::operator new[](size_t count) {
return _aligned_malloc(count, 16);
}
void util::vec4a::operator delete(void* p) {
_aligned_free(p);
}
void util::vec4a::operator delete[](void* p) {
_aligned_free(p);
}
std::pair<int64_t, int64_t> util::SizeFromString(std::string text, bool allowSquare) {
int64_t width, height;
const char* begin = text.c_str();
const char* end = text.c_str() + text.size() + 1;
char* here = const_cast<char*>(end);
long long res = strtoll(begin, &here, 0);
if (errno == ERANGE) {
return { 0, 0 };
}
width = res;
while (here != end) {
if (isdigit(*here) || (*here == '-') || (*here == '+')) {
break;
}
here++;
}
if (here == end) {
// Are we allowed to return a square?
if (allowSquare) {
// Yes: Return width,width.
return { width, width };
} else {
// No: Return width,0.
return { width, 0 };
}
}
res = strtoll(here, nullptr, 0);
if (errno == ERANGE) {
return { width, 0 };
}
height = res;
return { width, height };
}