[MetaHook] Quake FMOD player demo

CFMOD.h

 1 #ifndef CFMOD_H
 2 #define CFMOD_H
 3 
 4 #include "qfmod.h"
 5 
 6 struct Sound_t
 7 {
 8     char *pszName;
 9     FMOD_SOUND *pSound;
10     FMOD_CHANNEL *pChannel;
11     Sound_t *pNext;
12 };
13 
14 #ifdef PlaySound
15 #undef PlaySound
16 #endif
17 
18 class CFmod
19 {
20 public:
21     CFmod();
22     ~CFmod();
23 public:
24     void Init(void);
25     void PlaySound(char *pszFileName);
26     void StopSound(char *pszFileName);
27     void Shutdown(void);
28 private:
29     Sound_t* FindSound(char *pszFileName);
30     bool CacheSound(char *pszFileName);
31 private:
32     FMOD_SYSTEM *m_pSystem;
33     Sound_t *m_pBaseSound;
34 };
35 
36 #endif

CFMOD.cpp

  1 #include <metahook.h>
  2 
  3 #include "qfmod.h"
  4 
  5 #include "cfmod.h"
  6 
  7 extern IFileSystem *g_pFileSystem;
  8 
  9 CFmod::CFmod()
 10 {
 11     m_pSystem = NULL;
 12     m_pBaseSound = NULL;
 13 }
 14 
 15 CFmod::~CFmod()
 16 {
 17     m_pSystem = NULL;
 18     m_pBaseSound = NULL;
 19 }
 20 
 21 void CFmod::Init(void)
 22 {
 23     CFmod();
 24 
 25     qFMOD_System_Create(&m_pSystem);
 26     qFMOD_System_Init(m_pSystem, 32, FMOD_INIT_NORMAL, NULL);
 27 }
 28 
 29 void CFmod::PlaySound(char *pszFileName)
 30 {
 31     if (!m_pSystem)
 32         return;
 33 
 34     Sound_t *pSound = FindSound(pszFileName);
 35 
 36     if (!pSound)
 37     {
 38         if (!CacheSound(pszFileName))
 39             return;
 40     }
 41 
 42     pSound = FindSound(pszFileName);
 43 
 44     if (!pSound)
 45         return;
 46 
 47     qFMOD_System_PlaySound(m_pSystem, FMOD_CHANNEL_FREE, pSound->pSound, NULL, &pSound->pChannel);
 48 }
 49 
 50 void CFmod::StopSound(char *pszFileName)
 51 {
 52     if (!m_pSystem)
 53         return;
 54 
 55     if (pszFileName != NULL)
 56     {
 57         Sound_t *pSound = FindSound(pszFileName);
 58 
 59         if (!pSound)
 60             return;
 61 
 62         if (pSound->pChannel)
 63             qFMOD_Channel_Stop(pSound->pChannel);
 64     }
 65     else
 66     {
 67         for (Sound_t *p = m_pBaseSound; p; p = p->pNext)
 68         {
 69             if (p->pChannel)
 70                 qFMOD_Channel_Stop(p->pChannel);
 71         }
 72     }
 73 }
 74 
 75 void CFmod::Shutdown(void)
 76 {
 77     if (!m_pSystem)
 78         return;
 79 
 80     Sound_t *p = m_pBaseSound;
 81     Sound_t *t;
 82 
 83     while (p)
 84     {
 85         t = p->pNext;
 86 
 87         free(p->pszName);
 88         qFMOD_Sound_Release(p->pSound);
 89         delete p;
 90 
 91         p = t;
 92     }
 93 
 94     qFMOD_System_Close(m_pSystem);
 95     qFMOD_System_Release(m_pSystem);
 96 }
 97 
 98 Sound_t* CFmod::FindSound(char *pszFileName)
 99 {
100     if (!m_pSystem)
101         return NULL;
102 
103     for (Sound_t *p = m_pBaseSound; p; p = p->pNext)
104     {
105         if (p->pszName && !strcmp(p->pszName, pszFileName))
106             return p;
107     }
108 
109     return NULL;
110 }
111 
112 bool CFmod::CacheSound(char *pszFileName)
113 {
114     if (!m_pSystem)
115         return false;
116 
117     FileHandle_t pFile;
118     uint32 iFileLen;
119     BYTE *pBuffer;
120     FMOD_CREATESOUNDEXINFO ExInfo;
121     FMOD_SOUND *pSound;
122     Sound_t *pCache;
123 
124     pFile = g_pFileSystem->Open(pszFileName, "rb");
125 
126     if (!pFile)
127     {
128         return false;
129     }
130 
131     g_pFileSystem->Seek(pFile, 0, FILESYSTEM_SEEK_TAIL);
132     iFileLen = g_pFileSystem->Tell(pFile);
133     g_pFileSystem->Seek(pFile, 0, FILESYSTEM_SEEK_HEAD);
134 
135     pBuffer = (BYTE *)malloc(iFileLen);
136     g_pFileSystem->Read(pBuffer, iFileLen, pFile);
137 
138     g_pFileSystem->Close(pFile);
139 
140     memset(&ExInfo, 0, sizeof(ExInfo));
141     ExInfo.cbsize = sizeof(ExInfo);
142     ExInfo.length = iFileLen;
143 
144     if (qFMOD_System_CreateSound(m_pSystem, (const char *)pBuffer, FMOD_HARDWARE | FMOD_OPENMEMORY, &ExInfo, &pSound) != FMOD_OK)
145     {
146         free(pBuffer);
147         return false;
148     }
149 
150     free(pBuffer);
151 
152     pCache = new Sound_t;
153     pCache->pszName = (char *)malloc(strlen(pszFileName) * sizeof(char) + 1);
154     strcpy(pCache->pszName, pszFileName);
155     pCache->pSound = pSound;
156     pCache->pChannel = NULL;
157     pCache->pNext = m_pBaseSound;
158     m_pBaseSound = pCache;
159 
160     return true;
161 }

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原文地址：https://www.cnblogs.com/crsky/p/4709179.html