297 lines
8.3 KiB
C++
297 lines
8.3 KiB
C++
/****************************************************************************
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* *
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* Project64-audio - A Nintendo 64 audio plugin. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2017 Project64. All rights reserved. *
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* Copyright (C) 2015 Gilles Siberlin *
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* Copyright (C) 2007-2009 Richard Goedeken *
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* Copyright (C) 2007-2008 Ebenblues *
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* Copyright (C) 2003 JttL *
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* Copyright (C) 2002 Hacktarux *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* *
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****************************************************************************/
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#include <Common/Util.h>
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#ifdef _WIN32
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#include <Project64-audio/Driver/DirectSound.h>
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#else
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#include <Project64-audio/Driver/OpenSLES.h>
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#endif
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#include "audio_1.1.h"
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#include "Version.h"
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#include <stdio.h>
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#include <string.h>
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#include "AudioSettings.h"
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#include "trace.h"
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#include "AudioMain.h"
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#include "ConfigUI.h"
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#include "SettingsID.h"
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#ifdef _WIN32
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void SetTimerResolution ( void );
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#endif
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#define ENDIAN_SWAP_BYTE (~0 & 0x7 & 3)
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#define BES(address) ((address) ^ ENDIAN_SWAP_BYTE)
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/* Read header for type definition */
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AUDIO_INFO g_AudioInfo;
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bool g_PluginInit = false;
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bool g_romopen = false;
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uint32_t g_Dacrate = 0, hack = 0;
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#ifdef _WIN32
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DirectSoundDriver * g_SoundDriver = NULL;
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#else
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OpenSLESDriver * g_SoundDriver = NULL;
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#endif
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void PluginInit(void)
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{
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if (g_PluginInit)
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{
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return;
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}
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SetupTrace();
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SetupAudioSettings();
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StartTrace();
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//SetTimerResolution();
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g_PluginInit = true;
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}
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EXPORT void CALL PluginLoaded(void)
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{
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PluginInit();
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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if (g_settings != NULL)
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{
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g_settings->SetSyncViaAudioEnabled(true);
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}
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}
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EXPORT void CALL AiDacrateChanged(int SystemType)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start (SystemType: %d)", SystemType);
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if (!g_PluginInit)
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{
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WriteTrace(TraceAudioInterface, TraceNotice, "Plugin has not been initilized");
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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return;
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}
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if (g_SoundDriver && g_Dacrate != *g_AudioInfo.AI_DACRATE_REG)
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{
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g_Dacrate = *g_AudioInfo.AI_DACRATE_REG & 0x00003FFF;
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if (g_Dacrate != *g_AudioInfo.AI_DACRATE_REG)
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{
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WriteTrace(TraceAudioInterface, TraceNotice, "Unknown/reserved bits in AI_DACRATE_REG set. 0x%08X", *g_AudioInfo.AI_DACRATE_REG);
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}
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uint32_t video_clock = 0, BufferSize = 0, Frequency = 0, divider = 0;
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switch (SystemType)
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{
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case SYSTEM_NTSC: video_clock = 48681812; break;
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case SYSTEM_PAL: video_clock = 49656530; break;
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case SYSTEM_MPAL: video_clock = 48628316; break;
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}
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Frequency = (video_clock / (g_Dacrate + 1));
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if (Frequency < 8000)
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{
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WriteTrace(TraceAudioDriver, TraceDebug, "Not Audio Data!");
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return;
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}
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switch (g_settings->GetBuffer())
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{
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case 1: divider = 50; break;
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case 2: divider = 45; break;
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case 3: divider = 40; break;
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case 4: divider = 30; break;
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case 5: divider = 25; break;
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case 6: divider = 20; break;
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case 7: divider = 15; break;
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}
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BufferSize = (Frequency / divider) + 3 & ~0x3;
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if (hack == 'BH' && SystemType != SYSTEM_PAL) BufferSize -= 16;
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g_SoundDriver->AI_SetFrequency(Frequency, BufferSize);
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}
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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}
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EXPORT void CALL AiLenChanged(void)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start (DRAM_ADDR = 0x%X Len = 0x%X)", *g_AudioInfo.AI_DRAM_ADDR_REG, *g_AudioInfo.AI_LEN_REG);
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if (g_SoundDriver && g_settings->AudioEnabled())
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{
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uint32_t Len = *g_AudioInfo.AI_LEN_REG & 0x3FFF8;
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uint8_t * Buffer = (g_AudioInfo.RDRAM + (*g_AudioInfo.AI_DRAM_ADDR_REG & 0x00FFFFF8));
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g_SoundDriver->AI_LenChanged(Buffer, Len);
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}
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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}
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EXPORT uint32_t CALL AiReadLength(void)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start");
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uint32_t len = 0;
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if (g_SoundDriver != NULL)
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{
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*g_AudioInfo.AI_LEN_REG = g_SoundDriver->AI_ReadLength();
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len = *g_AudioInfo.AI_LEN_REG;
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}
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WriteTrace(TraceAudioInterface, TraceDebug, "Done (len: 0x%X)", len);
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return len;
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}
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EXPORT void CALL AiUpdate(int32_t Wait)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start (Wait: %s)", Wait ? "true" : "false");
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if (g_SoundDriver)
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{
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g_SoundDriver->AI_Update(Wait != 0);
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}
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else
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{
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pjutil::Sleep(1); // TODO: Fixme -- Ai Update appears to be problematic
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}
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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}
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EXPORT void CALL CloseDLL(void)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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if (g_SoundDriver != NULL)
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{
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g_SoundDriver->AI_Shutdown();
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delete g_SoundDriver;
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g_SoundDriver = NULL;
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}
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CleanupAudioSettings();
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StopTrace();
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}
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EXPORT void CALL DllAbout(void * /*hParent*/)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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}
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EXPORT void CALL DllConfig(void * hParent)
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{
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#ifdef _WIN32
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ConfigAudio(hParent);
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if (g_SoundDriver)
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{
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g_SoundDriver->SetVolume(g_settings->GetVolume());
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}
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#endif
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}
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EXPORT void CALL DllTest(void * /*hParent*/)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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}
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EXPORT void CALL GetDllInfo(PLUGIN_INFO * PluginInfo)
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{
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PluginInfo->Version = 0x0101;
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PluginInfo->Type = PLUGIN_TYPE_AUDIO;
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#ifdef _DEBUG
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sprintf(PluginInfo->Name, "Project64 Audio Plugin (Debug): %s", VER_FILE_VERSION_STR);
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#else
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sprintf(PluginInfo->Name, "Project64 Audio Plugin: %s", VER_FILE_VERSION_STR);
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#endif
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PluginInfo->MemoryBswaped = true;
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PluginInfo->NormalMemory = false;
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}
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EXPORT int32_t CALL InitiateAudio(AUDIO_INFO Audio_Info)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start");
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if (g_SoundDriver != NULL)
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{
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g_SoundDriver->AI_Shutdown();
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delete g_SoundDriver;
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}
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#ifdef _WIN32
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SetTimerResolution();
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#endif
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g_AudioInfo = Audio_Info;
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#ifdef _WIN32
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g_SoundDriver = new DirectSoundDriver;
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#else
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g_SoundDriver = new OpenSLESDriver;
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#endif
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const uint16_t cart_ID = 0x0000
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| (g_AudioInfo.HEADER[BES(0x3C)] << 8)
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| (g_AudioInfo.HEADER[BES(0x3D)] << 0)
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;
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hack = cart_ID;
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WriteTrace(TraceAudioInterface, TraceDebug, "Done (res: true)");
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return true;
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}
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EXPORT void CALL RomOpen()
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start");
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g_romopen = true;
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g_settings->ReadSettings();
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if (g_SoundDriver)
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{
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g_SoundDriver->AI_Startup();
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}
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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}
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EXPORT void CALL RomClosed(void)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Start");
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g_Dacrate = 0;
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if (g_SoundDriver)
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{
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g_SoundDriver->AI_Shutdown();
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}
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g_romopen = false;
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WriteTrace(TraceAudioInterface, TraceDebug, "Done");
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}
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EXPORT void CALL ProcessAList(void)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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}
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#ifdef _WIN32
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#include <Windows.h>
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#endif
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extern "C" void UseUnregisteredSetting(int /*SettingID*/)
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{
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WriteTrace(TraceAudioInterface, TraceDebug, "Called");
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#ifdef _WIN32
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DebugBreak();
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#endif
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}
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#ifdef _WIN32
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void SetTimerResolution(void)
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{
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HMODULE hMod = GetModuleHandle(L"ntdll.dll");
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if (hMod != NULL)
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{
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typedef LONG(NTAPI* tNtSetTimerResolution)(IN ULONG DesiredResolution, IN BOOLEAN SetResolution, OUT PULONG CurrentResolution);
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tNtSetTimerResolution NtSetTimerResolution = (tNtSetTimerResolution)GetProcAddress(hMod, "NtSetTimerResolution");
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ULONG CurrentResolution = 0;
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NtSetTimerResolution(10000, TRUE, &CurrentResolution);
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}
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}
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#endif
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