mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-12-17 18:36:46 +00:00
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
|
|
|
|
// 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, version 2.0 or later versions.
|
|
|
|
// 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 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official SVN repository and contact information can be found at
|
|
// http://code.google.com/p/dolphin-emu/
|
|
|
|
#pragma once
|
|
|
|
#include <cstdint>
|
|
|
|
#ifdef _WIN32
|
|
#include "CommonWindows.h"
|
|
#elif defined(__APPLE__)
|
|
#include <mach/mach.h>
|
|
#endif
|
|
|
|
#include "Common/CommonTypes.h"
|
|
|
|
// This class lets you create a block of anonymous RAM, and then arbitrarily map views into it.
|
|
// Multiple views can mirror the same section of the block, which makes it very convient for emulating
|
|
// memory mirrors.
|
|
|
|
struct MemArenaData;
|
|
|
|
class MemArena {
|
|
public:
|
|
size_t roundup(size_t x);
|
|
bool GrabMemSpace(size_t size);
|
|
void ReleaseSpace();
|
|
void *CreateView(s64 offset, size_t size, void *base = 0);
|
|
void ReleaseView(s64 offset, void *view, size_t size);
|
|
|
|
// This only finds 1 GB in 32-bit
|
|
u8 *Find4GBBase();
|
|
bool NeedsProbing();
|
|
|
|
private:
|
|
#ifdef _WIN32
|
|
HANDLE hMemoryMapping;
|
|
SYSTEM_INFO sysInfo;
|
|
#elif defined(__APPLE__)
|
|
size_t vm_size;
|
|
vm_address_t vm_mem; // same type as vm_address_t
|
|
#else
|
|
int fd = -1;
|
|
#endif
|
|
};
|