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/*
Copyright 2016-2020 Arisotura
This file is part of melonDS.
melonDS 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.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef FRONTENDUTIL_H
#define FRONTENDUTIL_H
#include "types.h"
namespace Frontend
{
enum
{
ROMSlot_NDS = 0,
ROMSlot_GBA,
ROMSlot_MAX
};
enum
{
Load_OK = 0,
Load_BIOS9Missing,
Load_BIOS9Bad,
Load_BIOS7Missing,
Load_BIOS7Bad,
Load_FirmwareMissing,
Load_FirmwareBad,
Load_FirmwareNotBootable,
// TODO: more precise errors for ROM loading
Load_ROMLoadError,
};
extern char ROMPath [ROMSlot_MAX][1024];
extern char SRAMPath[ROMSlot_MAX][1024];
extern bool SavestateLoaded;
// initialize the ROM handling utility
void Init_ROM();
// load the BIOS/firmware and boot from it
int LoadBIOS();
// load a ROM file to the specified cart slot
// note: loading a ROM to the NDS slot resets emulation
int LoadROM(const char* file, int slot);
// get the filename associated with the given savestate slot (1-8)
void GetSavestateName(int slot, char* filename, int len);
// determine whether the given savestate slot does contain a savestate
bool SavestateExists(int slot);
// load the given savestate file
// if successful, emulation will continue from the savestate's point
bool LoadState(const char* filename);
// save the current emulator state to the given file
bool SaveState(const char* filename);
// undo the latest savestate load
void UndoStateLoad();
// initialize the audio utility
void Init_Audio(int outputfreq);
// get how many samples to read from the core audio output
// based on how many are needed by the frontend (outlen in samples)
int AudioOut_GetNumSamples(int outlen);
// resample audio from the core audio output to match the frontend's
// output frequency, and apply user-specified volume
// note: this assumes the output buffer is interleaved stereo
void AudioOut_Resample(s16* inbuf, int inlen, s16* outbuf, int outlen);
}
#endif // FRONTENDUTIL_H
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