| /* |
| * IDirectMusicBuffer Implementation |
| * |
| * Copyright (C) 2003-2004 Rok Mandeljc |
| * Copyright (C) 2012 Christian Costa |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This program 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "dmusic_private.h" |
| #include "initguid.h" |
| #include "dmksctrl.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(dmusic); |
| |
| static inline IDirectMusicBufferImpl *impl_from_IDirectMusicBuffer(IDirectMusicBuffer *iface) |
| { |
| return CONTAINING_RECORD(iface, IDirectMusicBufferImpl, IDirectMusicBuffer_iface); |
| } |
| |
| /* IDirectMusicBufferImpl IUnknown part: */ |
| static HRESULT WINAPI IDirectMusicBufferImpl_QueryInterface(LPDIRECTMUSICBUFFER iface, REFIID riid, LPVOID *ret_iface) |
| { |
| TRACE("(%p)->(%s, %p)\n", iface, debugstr_dmguid(riid), ret_iface); |
| |
| if (IsEqualIID(riid, &IID_IUnknown) || |
| IsEqualIID(riid, &IID_IDirectMusicBuffer)) |
| { |
| IDirectMusicBuffer_AddRef(iface); |
| *ret_iface = iface; |
| return S_OK; |
| } |
| |
| *ret_iface = NULL; |
| |
| WARN("(%p)->(%s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface); |
| |
| return E_NOINTERFACE; |
| } |
| |
| static ULONG WINAPI IDirectMusicBufferImpl_AddRef(LPDIRECTMUSICBUFFER iface) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| ULONG ref = InterlockedIncrement(&This->ref); |
| |
| TRACE("(%p)->(): new ref = %u\n", iface, ref); |
| |
| return ref; |
| } |
| |
| static ULONG WINAPI IDirectMusicBufferImpl_Release(LPDIRECTMUSICBUFFER iface) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| ULONG ref = InterlockedDecrement(&This->ref); |
| |
| TRACE("(%p)->(): new ref = %u\n", iface, ref); |
| |
| if (!ref) { |
| HeapFree(GetProcessHeap(), 0, This->data); |
| HeapFree(GetProcessHeap(), 0, This); |
| DMUSIC_UnlockModule(); |
| } |
| |
| return ref; |
| } |
| |
| /* IDirectMusicBufferImpl IDirectMusicBuffer part: */ |
| static HRESULT WINAPI IDirectMusicBufferImpl_Flush(LPDIRECTMUSICBUFFER iface) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->()\n", iface); |
| |
| This->write_pos = 0; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_TotalTime(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prtTime) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| FIXME("(%p, %p): stub\n", This, prtTime); |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_PackStructured(LPDIRECTMUSICBUFFER iface, REFERENCE_TIME ref_time, DWORD channel_group, DWORD channel_message) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| DWORD new_write_pos = This->write_pos + DMUS_EVENT_SIZE(sizeof(channel_message)); |
| DMUS_EVENTHEADER *header; |
| |
| TRACE("(%p)->(0x%s, %u, 0x%x)\n", iface, wine_dbgstr_longlong(ref_time), channel_group, channel_message); |
| |
| if (new_write_pos > This->size) |
| return DMUS_E_BUFFER_FULL; |
| |
| /* Channel_message 0xZZYYXX (3 bytes) is a midi message where XX = status byte, YY = byte 1 and ZZ = byte 2 */ |
| |
| if (!(channel_message & 0x80)) |
| { |
| /* Status byte MSB is always set */ |
| return DMUS_E_INVALID_EVENT; |
| } |
| |
| if (!This->write_pos) |
| This->start_time = ref_time; |
| |
| header = (DMUS_EVENTHEADER*)&This->data[This->write_pos]; |
| header->cbEvent = 3; /* Midi message takes 4 bytes space but only 3 are relevant */ |
| header->dwChannelGroup = channel_group; |
| header->rtDelta = ref_time - This->start_time; |
| header->dwFlags = DMUS_EVENT_STRUCTURED; |
| |
| *(DWORD*)&header[1] = channel_message; |
| This->write_pos = new_write_pos; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_PackUnstructured(IDirectMusicBuffer *iface, |
| REFERENCE_TIME ref_time, DWORD channel_group, DWORD len, BYTE *data) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| DWORD new_write_pos = This->write_pos + DMUS_EVENT_SIZE(len); |
| DMUS_EVENTHEADER *header; |
| |
| TRACE("(%p, 0x%s, %d, %d, %p)\n", This, wine_dbgstr_longlong(ref_time), channel_group, len, data); |
| |
| if (new_write_pos > This->size) |
| return DMUS_E_BUFFER_FULL; |
| |
| if (!This->write_pos) |
| This->start_time = ref_time; |
| |
| header = (DMUS_EVENTHEADER*)&This->data[This->write_pos]; |
| header->cbEvent = len; |
| header->dwChannelGroup = channel_group; |
| header->rtDelta = ref_time - This->start_time; |
| header->dwFlags = 0; |
| |
| memcpy(&header[1], data, len); |
| This->write_pos = new_write_pos; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_ResetReadPtr(LPDIRECTMUSICBUFFER iface) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| FIXME("(%p): stub\n", This); |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetNextEvent(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prt, LPDWORD pdwChannelGroup, LPDWORD pdwLength, LPBYTE* ppData) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| FIXME("(%p, %p, %p, %p, %p): stub\n", This, prt, pdwChannelGroup, pdwLength, ppData); |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetRawBufferPtr(LPDIRECTMUSICBUFFER iface, LPBYTE* data) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%p)\n", iface, data); |
| |
| if (!data) |
| return E_POINTER; |
| |
| *data = This->data; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetStartTime(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME ref_time) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%p)\n", iface, ref_time); |
| |
| if (!ref_time) |
| return E_POINTER; |
| if (!This->write_pos) |
| return DMUS_E_BUFFER_EMPTY; |
| |
| *ref_time = This->start_time; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetUsedBytes(LPDIRECTMUSICBUFFER iface, LPDWORD used_bytes) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%p)\n", iface, used_bytes); |
| |
| if (!used_bytes) |
| return E_POINTER; |
| |
| *used_bytes = This->write_pos; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetMaxBytes(LPDIRECTMUSICBUFFER iface, LPDWORD max_bytes) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%p)\n", iface, max_bytes); |
| |
| if (!max_bytes) |
| return E_POINTER; |
| |
| *max_bytes = This->size; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_GetBufferFormat(LPDIRECTMUSICBUFFER iface, LPGUID format) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%p)\n", iface, format); |
| |
| if (!format) |
| return E_POINTER; |
| |
| *format = This->format; |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_SetStartTime(LPDIRECTMUSICBUFFER iface, REFERENCE_TIME ref_time) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(0x%s)\n", This, wine_dbgstr_longlong(ref_time)); |
| |
| This->start_time = ref_time; |
| |
| return S_OK; |
| } |
| |
| static HRESULT WINAPI IDirectMusicBufferImpl_SetUsedBytes(LPDIRECTMUSICBUFFER iface, DWORD used_bytes) |
| { |
| IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface); |
| |
| TRACE("(%p)->(%u)\n", iface, used_bytes); |
| |
| if (used_bytes > This->size) |
| return DMUS_E_BUFFER_FULL; |
| |
| This->write_pos = used_bytes; |
| |
| return S_OK; |
| } |
| |
| static const IDirectMusicBufferVtbl DirectMusicBuffer_Vtbl = { |
| IDirectMusicBufferImpl_QueryInterface, |
| IDirectMusicBufferImpl_AddRef, |
| IDirectMusicBufferImpl_Release, |
| IDirectMusicBufferImpl_Flush, |
| IDirectMusicBufferImpl_TotalTime, |
| IDirectMusicBufferImpl_PackStructured, |
| IDirectMusicBufferImpl_PackUnstructured, |
| IDirectMusicBufferImpl_ResetReadPtr, |
| IDirectMusicBufferImpl_GetNextEvent, |
| IDirectMusicBufferImpl_GetRawBufferPtr, |
| IDirectMusicBufferImpl_GetStartTime, |
| IDirectMusicBufferImpl_GetUsedBytes, |
| IDirectMusicBufferImpl_GetMaxBytes, |
| IDirectMusicBufferImpl_GetBufferFormat, |
| IDirectMusicBufferImpl_SetStartTime, |
| IDirectMusicBufferImpl_SetUsedBytes |
| }; |
| |
| HRESULT DMUSIC_CreateDirectMusicBufferImpl(LPDMUS_BUFFERDESC desc, LPVOID* ret_iface) |
| { |
| IDirectMusicBufferImpl* dmbuffer; |
| |
| TRACE("(%p, %p)\n", desc, ret_iface); |
| |
| *ret_iface = NULL; |
| |
| dmbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBufferImpl)); |
| if (!dmbuffer) |
| return E_OUTOFMEMORY; |
| |
| dmbuffer->IDirectMusicBuffer_iface.lpVtbl = &DirectMusicBuffer_Vtbl; |
| dmbuffer->ref = 1; |
| |
| if (IsEqualGUID(&desc->guidBufferFormat, &GUID_NULL)) |
| dmbuffer->format = KSDATAFORMAT_SUBTYPE_MIDI; |
| else |
| dmbuffer->format = desc->guidBufferFormat; |
| dmbuffer->size = (desc->cbBuffer + 3) & ~3; /* Buffer size must be multiple of 4 bytes */ |
| |
| dmbuffer->data = HeapAlloc(GetProcessHeap(), 0, dmbuffer->size); |
| if (!dmbuffer->data) { |
| HeapFree(GetProcessHeap(), 0, dmbuffer); |
| return E_OUTOFMEMORY; |
| } |
| |
| DMUSIC_LockModule(); |
| *ret_iface = &dmbuffer->IDirectMusicBuffer_iface; |
| |
| return S_OK; |
| } |