346 lines
8.4 KiB
C++
346 lines
8.4 KiB
C++
// Some of the original source code for this file can be found here:
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// https://github.com/shbow/organya/blob/master/source/Sound.cpp
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/*
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TODO - Code style
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Pixel's code was *extremely* Windows-centric, to the point of using
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things like ZeroMemory and LPCSTR instead of standard things like
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memset and const char*. For now, the decompilation is accurate despite
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not using these since they're just macros that evaluate to the portable
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equivalents.
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*/
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#include "Sound.h"
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "WindowsWrapper.h"
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#include "Backends/Audio.h"
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#include "Main.h"
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#include "Organya.h"
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#include "PixTone.h"
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BOOL audio_backend_initialised;
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AudioBackend_Sound *lpSECONDARYBUFFER[SE_MAX];
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// DirectSoundの開始 (Starting DirectSound)
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BOOL InitDirectSound(void)
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{
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int i;
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audio_backend_initialised = AudioBackend_Init();
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if (!audio_backend_initialised)
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{
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#ifndef FIX_BUGS
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// This makes absolutely no sense here
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StartOrganya("Org/Wave.dat");
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#endif
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return FALSE;
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}
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for (i = 0; i < SE_MAX; i++)
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lpSECONDARYBUFFER[i] = NULL;
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StartOrganya("Org/Wave.dat");
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return TRUE;
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}
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// DirectSoundの終了 (Exit DirectSound)
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void EndDirectSound(void)
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{
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int i;
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if (!audio_backend_initialised)
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return;
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EndOrganya();
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for (i = 0; i < SE_MAX; i++)
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if (lpSECONDARYBUFFER[i] != NULL)
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AudioBackend_DestroySound(lpSECONDARYBUFFER[i]);
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AudioBackend_Deinit();
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}
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/*
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// サウンドの設定 (Sound settings)
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BOOL InitSoundObject(LPCSTR resname, int no)
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{
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HRSRC hrscr;
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DSBUFFERDESC dsbd;
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DWORD *lpdword; // リソースのアドレス (Resource address)
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if (lpDS == NULL)
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return TRUE;
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// リソースの検索 (Search for resources)
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if ((hrscr = FindResourceA(NULL, resname, "WAVE")) == NULL)
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return FALSE;
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// リソースのアドレスを取得 (Get resource address)
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lpdword = (DWORD*)LockResource(LoadResource(NULL, hrscr));
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// 二次バッファの生成 (Create secondary buffer)
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ZeroMemory(&dsbd, sizeof(dsbd));
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dsbd.dwSize = sizeof(dsbd);
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dsbd.dwFlags = DSBCAPS_STATIC | DSBCAPS_GLOBALFOCUS | DSBCAPS_CTRLPAN | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
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dsbd.dwBufferBytes = *(DWORD*)((BYTE*)lpdword+0x36); // WAVEデータのサイズ (WAVE data size)
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dsbd.lpwfxFormat = (LPWAVEFORMATEX)(lpdword+5);
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if (lpDS->CreateSoundBuffer(&dsbd, &lpSECONDARYBUFFER[no], NULL) != DS_OK)
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return FALSE;
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LPVOID lpbuf1, lpbuf2;
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DWORD dwbuf1, dwbuf2;
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// 二次バッファのロック (Secondary buffer lock)
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lpSECONDARYBUFFER[no]->Lock(0, *(DWORD*)((BYTE*)lpdword+0x36), &lpbuf1, &dwbuf1, &lpbuf2, &dwbuf2, 0);
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// 音源データの設定 (Sound source data settings)
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CopyMemory(lpbuf1, (BYTE*)lpdword+0x3A, dwbuf1);
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if (dwbuf2 != 0)
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CopyMemory(lpbuf2, (BYTE*)lpdword+0x3A+dwbuf1, dwbuf2);
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// 二次バッファのロック解除 (Unlock secondary buffer)
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lpSECONDARYBUFFER[no]->Unlock(lpbuf1, dwbuf1, lpbuf2, dwbuf2);
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return TRUE;
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}
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BOOL LoadSoundObject(LPCSTR file_name, int no)
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{
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char path[MAX_PATH];
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DWORD i;
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DWORD file_size = 0;
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char check_box[58];
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FILE *fp;
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HANDLE hFile;
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sprintf(path, "%s\\%s", gModulePath, file_name);
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if (lpDS == NULL)
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return TRUE;
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hFile = CreateFileA(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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return FALSE;
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file_size = GetFileSize(hFile, NULL);
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CloseHandle(hFile);
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if ((fp = fopen(path, "rb")) == NULL)
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return FALSE;
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for (i = 0; i < 58; i++)
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fread(&check_box[i], sizeof(char), 1, fp);
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if (check_box[0] != 'R')
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return FALSE;
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if (check_box[1] != 'I')
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return FALSE;
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if (check_box[2] != 'F')
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return FALSE;
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if (check_box[3] != 'F')
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return FALSE;
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DWORD *wp;
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wp = (DWORD*)malloc(file_size); // ファイルのワークスペースを作る (Create a file workspace)
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fseek(fp, 0, SEEK_SET);
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for (i = 0; i < file_size; i++)
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fread((BYTE*)wp+i, sizeof(BYTE), 1, fp);
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fclose(fp);
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// セカンダリバッファの生成 (Create secondary buffer)
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DSBUFFERDESC dsbd;
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ZeroMemory(&dsbd, sizeof(dsbd));
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dsbd.dwSize = sizeof(dsbd);
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dsbd.dwFlags = DSBCAPS_STATIC | DSBCAPS_GLOBALFOCUS | DSBCAPS_CTRLPAN | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
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dsbd.dwBufferBytes = *(DWORD*)((BYTE*)wp+0x36); // WAVEデータのサイズ (WAVE data size)
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dsbd.lpwfxFormat = (LPWAVEFORMATEX)(wp+5);
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if (lpDS->CreateSoundBuffer(&dsbd, &lpSECONDARYBUFFER[no], NULL) != DS_OK)
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{
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#ifdef FIX_BUGS
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free(wp); // The updated Organya source code includes this fix
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#endif
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return FALSE;
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}
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LPVOID lpbuf1, lpbuf2;
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DWORD dwbuf1, dwbuf2;
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HRESULT hr;
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hr = lpSECONDARYBUFFER[no]->Lock(0, *(DWORD*)((BYTE*)wp+0x36), &lpbuf1, &dwbuf1, &lpbuf2, &dwbuf2, 0);
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if (hr != DS_OK)
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{
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#ifdef FIX_BUGS
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free(wp); // The updated Organya source code includes this fix
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#endif
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return FALSE;
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}
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CopyMemory(lpbuf1, (BYTE*)wp+0x3A, dwbuf1); // +3aはデータの頭 (+ 3a is the head of the data)
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if (dwbuf2 != 0)
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CopyMemory(lpbuf2, (BYTE*)wp+0x3A+dwbuf1, dwbuf2);
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lpSECONDARYBUFFER[no]->Unlock(lpbuf1, dwbuf1, lpbuf2, dwbuf2);
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free(wp);
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return TRUE;
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}
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*/
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void PlaySoundObject(int no, int mode)
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{
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if (!audio_backend_initialised)
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return;
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if (lpSECONDARYBUFFER[no] != NULL)
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{
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switch (mode)
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{
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case 0: // 停止 (Stop)
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AudioBackend_StopSound(lpSECONDARYBUFFER[no]);
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break;
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case 1: // 再生 (Playback)
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AudioBackend_StopSound(lpSECONDARYBUFFER[no]);
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AudioBackend_RewindSound(lpSECONDARYBUFFER[no]);
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AudioBackend_PlaySound(lpSECONDARYBUFFER[no], FALSE);
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break;
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case -1:// ループ再生 (Loop playback)
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AudioBackend_PlaySound(lpSECONDARYBUFFER[no], TRUE);
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break;
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}
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}
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}
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void ChangeSoundFrequency(int no, unsigned long rate) // 100がMIN9999がMAXで2195?がﾉｰﾏﾙ (100 is MIN, 9999 is MAX, and 2195 is normal)
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{
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if (!audio_backend_initialised)
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return;
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AudioBackend_SetSoundFrequency(lpSECONDARYBUFFER[no], (rate * 10) + 100);
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}
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void ChangeSoundVolume(int no, long volume) // 300がMAXで300がﾉｰﾏﾙ (300 is MAX and 300 is normal)
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{
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if (!audio_backend_initialised)
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return;
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AudioBackend_SetSoundVolume(lpSECONDARYBUFFER[no], (volume - 300) * 8);
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}
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void ChangeSoundPan(int no, long pan) // 512がMAXで256がﾉｰﾏﾙ (512 is MAX and 256 is normal)
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{
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if (!audio_backend_initialised)
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return;
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AudioBackend_SetSoundPan(lpSECONDARYBUFFER[no], (pan - 256) * 10);
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}
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// TODO - The stack frame for this function is inaccurate
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int MakePixToneObject(const PIXTONEPARAMETER *ptp, int ptp_num, int no)
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{
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int i;
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int j;
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const PIXTONEPARAMETER *ptp_pointer;
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int sample_count;
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unsigned char *pcm_buffer;
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unsigned char *mixed_pcm_buffer;
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if (!audio_backend_initialised)
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return 0;
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ptp_pointer = ptp;
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sample_count = 0;
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for (i = 0; i < ptp_num; i++)
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{
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if (ptp_pointer->size > sample_count)
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sample_count = ptp_pointer->size;
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++ptp_pointer;
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}
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lpSECONDARYBUFFER[no] = AudioBackend_CreateSound(22050, sample_count);
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if (lpSECONDARYBUFFER[no] == NULL)
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return -1;
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pcm_buffer = mixed_pcm_buffer = NULL;
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pcm_buffer = (unsigned char*)malloc(sample_count);
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mixed_pcm_buffer = (unsigned char*)malloc(sample_count);
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if (pcm_buffer == NULL || mixed_pcm_buffer == NULL)
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{
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if (pcm_buffer != NULL)
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free(pcm_buffer);
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if (mixed_pcm_buffer != NULL)
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free(mixed_pcm_buffer);
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return -1;
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}
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memset(pcm_buffer, 0x80, sample_count);
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memset(mixed_pcm_buffer, 0x80, sample_count);
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ptp_pointer = ptp;
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for (i = 0; i < ptp_num; i++)
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{
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if (!MakePixelWaveData(ptp_pointer, pcm_buffer))
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{
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if (pcm_buffer != NULL) // This is always true
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free(pcm_buffer);
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if (mixed_pcm_buffer != NULL) // This is always true
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free(mixed_pcm_buffer);
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return -1;
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}
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for (j = 0; j < ptp_pointer->size; j++)
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{
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if (pcm_buffer[j] + mixed_pcm_buffer[j] - 0x100 < -0x7F)
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mixed_pcm_buffer[j] = 0;
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else if (pcm_buffer[j] + mixed_pcm_buffer[j] - 0x100 > 0x7F)
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mixed_pcm_buffer[j] = 0xFF;
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else
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mixed_pcm_buffer[j] = mixed_pcm_buffer[j] + pcm_buffer[j] - 0x80;
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}
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++ptp_pointer;
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}
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// This is self-assignment, so redundant. Maybe this used to be something to prevent audio popping ?
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mixed_pcm_buffer[0] = mixed_pcm_buffer[0];
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mixed_pcm_buffer[sample_count - 1] = mixed_pcm_buffer[sample_count - 1];
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unsigned char *buffer = AudioBackend_LockSound(lpSECONDARYBUFFER[no], NULL);
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memcpy(buffer, mixed_pcm_buffer, sample_count);
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AudioBackend_UnlockSound(lpSECONDARYBUFFER[no]);
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if (pcm_buffer != NULL)
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free(pcm_buffer);
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if (mixed_pcm_buffer != NULL)
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free(mixed_pcm_buffer);
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return sample_count;
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}
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