jxrc_t_pixelFormat jxrc_image_pixelformat(jxr_container_t container, int imagenum)
{
unsigned char guid[16];
int i;
assert(imagenum < container->image_count);
unsigned ifd_cnt = container->table_cnt[imagenum];
struct ifd_table*ifd = container->table[imagenum];
unsigned idx;
for (idx = 0 ; idx < ifd_cnt ; idx += 1) {
if (ifd[idx].tag == 0xbc01)
break;
}
assert(idx < ifd_cnt);
assert(ifd[idx].tag == 0xbc01);
assert(ifd[idx].cnt == 16);
memcpy(guid, ifd[idx].value_.p_byte, 16);
for(i=0; i< NUM_GUIDS; i++)
{
if(isEqualGUID(guid, jxr_guids[i]))
{
break;
}
}
if(i==NUM_GUIDS)
assert(0);
return (jxrc_t_pixelFormat)i;
}
signed int findCacheItemByGUID(LPGUID lpGuid, bool isSource)
{
int i;
for (i = 0; i < g_cacheCount; i++)
{
if (isSource == g_audioDeviceCache[i].isSource
&& isEqualGUID(lpGuid, &(g_audioDeviceCache[i].guid)))
{
return i;
}
}
return -1;
}
bool DS_addDeviceRef(signed int deviceID)
{
HWND ownerWindow;
HRESULT res = DS_OK;
LPDIRECTSOUND8 devPlay;
LPDIRECTSOUNDCAPTURE8 devCapture;
LPGUID lpGuid = NULL;
if (g_audioDeviceCache[deviceID].dev == NULL)
{
/* Create DirectSound */
//TRACE1("Creating DirectSound object for device %d\n", deviceID);
lpGuid = &(g_audioDeviceCache[deviceID].guid);
if (isEqualGUID(lpGuid, NULL))
{
lpGuid = NULL;
}
if (g_audioDeviceCache[deviceID].isSource)
{
#if 0
//CoInitialize(NULL);
res = DirectSoundCreate8(lpGuid, &devPlay, NULL); //生成DirectSound接口对象
#else
res = CoInitializeEx(NULL, 0);
res = CoCreateInstance(CLSID_DirectSound8,
NULL,
CLSCTX_INPROC_SERVER,
IID_IDirectSound8,
(LPVOID*)&devPlay);
devPlay->Initialize(NULL);
#endif
g_audioDeviceCache[deviceID].dev = (void*) devPlay;
}
else
{
res = DirectSoundCaptureCreate8(lpGuid, &devCapture, NULL);
g_audioDeviceCache[deviceID].dev = (void*) devCapture;
}
g_audioDeviceCache[deviceID].refCount = 0;
if (FAILED(res))
{
ERROR1("DS_addDeviceRef: ERROR: Failed to create DirectSound: %s", TranslateDSError(res));
g_audioDeviceCache[deviceID].dev = NULL;
return false;
}
if (g_audioDeviceCache[deviceID].isSource)
{
ownerWindow = GetForegroundWindow();
if (ownerWindow == NULL)
{
ownerWindow = GetDesktopWindow();
}
//TRACE0("DS_addDeviceRef: Setting cooperative level\n");
res = devPlay->SetCooperativeLevel(ownerWindow, DSSCL_PRIORITY); //设置应用程序对声音设备的合作级别
if (FAILED(res))
{
ERROR1("DS_addDeviceRef: ERROR: Failed to set cooperative level: %s", TranslateDSError(res));
return false;
}
}
}
g_audioDeviceCache[deviceID].refCount++;
return true;
}