obs-StreamFX/source/util-math.cpp
Michael Fabian 'Xaymar' Dirks e0e2d9fe80 project: Improve Linux support (#27 and #13)
While Linux was not an original goal of the project, it should still be supported out of the box. Therefore a number of changes are contained in this changeset:

- All C++ .h files were renamed to .hpp.
- All C includes (<....h>) were replaced with C++ includes (<c...>) and missing includes were added.
- std::memset and std::memcpy was replaced with memset and memcpy.
- All anonymous structs were removed where necessary.
- `extern "C"` was removed where it wasn't needed.
- #pragma warning was placed behind an #ifdef _MSC_VER
- The macros for `min`, `max` and `clamp` were removed as they were not used.
- `-fpedantic` was added to the GCC flags for bitmask support.
- `gs::rendertarget_op` is now declared before use.
- std::exception(const char*) was replaced with std::runtime_error(const char*).
- Added aligned_alloc and aligned_free macros for GCC and MSVC support.
- Replaced use of `sprintf_s` with `snprintf`.
- Placed additional guards around windows only code.

Additonally some changes were made that do not affect Linux:
- `NOMINMAX` and `NOINOUT` were removed.

Fixes: #27
Fixes: #13
2019-01-14 22:31:35 +01:00

103 lines
2.2 KiB
C++

/*
* 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.hpp"
#include <cctype>
#include <cstdlib>
#include "util-memory.hpp"
void* util::vec3a::operator new(size_t count)
{
return aligned_alloc(count, 16);
}
void* util::vec3a::operator new[](size_t count)
{
return aligned_alloc(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_alloc(count, 16);
}
void* util::vec4a::operator new[](size_t count)
{
return aligned_alloc(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};
}