mirror of
https://github.com/reactos/reactos.git
synced 2024-11-20 06:15:26 +00:00
325 lines
9.4 KiB
C
325 lines
9.4 KiB
C
/*
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* IDirectMusicBuffer Implementation
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*
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* Copyright (C) 2003-2004 Rok Mandeljc
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* Copyright (C) 2012 Christian Costa
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "dmusic_private.h"
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#include "initguid.h"
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#include "dmksctrl.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
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static inline IDirectMusicBufferImpl *impl_from_IDirectMusicBuffer(IDirectMusicBuffer *iface)
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{
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return CONTAINING_RECORD(iface, IDirectMusicBufferImpl, IDirectMusicBuffer_iface);
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}
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/* IDirectMusicBufferImpl IUnknown part: */
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static HRESULT WINAPI IDirectMusicBufferImpl_QueryInterface(LPDIRECTMUSICBUFFER iface, REFIID riid, LPVOID *ret_iface)
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{
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TRACE("(%p)->(%s, %p)\n", iface, debugstr_dmguid(riid), ret_iface);
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if (IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IDirectMusicBuffer))
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{
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IDirectMusicBuffer_AddRef(iface);
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*ret_iface = iface;
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return S_OK;
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}
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*ret_iface = NULL;
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WARN("(%p)->(%s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface);
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return E_NOINTERFACE;
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}
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static ULONG WINAPI IDirectMusicBufferImpl_AddRef(LPDIRECTMUSICBUFFER iface)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(): new ref = %u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI IDirectMusicBufferImpl_Release(LPDIRECTMUSICBUFFER iface)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p)->(): new ref = %u\n", iface, ref);
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if (!ref) {
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HeapFree(GetProcessHeap(), 0, This->data);
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HeapFree(GetProcessHeap(), 0, This);
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DMUSIC_UnlockModule();
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}
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return ref;
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}
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/* IDirectMusicBufferImpl IDirectMusicBuffer part: */
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static HRESULT WINAPI IDirectMusicBufferImpl_Flush(LPDIRECTMUSICBUFFER iface)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->()\n", iface);
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This->write_pos = 0;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_TotalTime(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prtTime)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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FIXME("(%p, %p): stub\n", This, prtTime);
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_PackStructured(LPDIRECTMUSICBUFFER iface, REFERENCE_TIME ref_time, DWORD channel_group, DWORD channel_message)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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DWORD new_write_pos = This->write_pos + DMUS_EVENT_SIZE(sizeof(channel_message));
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DMUS_EVENTHEADER *header;
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TRACE("(%p)->(0x%s, %u, 0x%x)\n", iface, wine_dbgstr_longlong(ref_time), channel_group, channel_message);
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if (new_write_pos > This->size)
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return DMUS_E_BUFFER_FULL;
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/* Channel_message 0xZZYYXX (3 bytes) is a midi message where XX = status byte, YY = byte 1 and ZZ = byte 2 */
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if (!(channel_message & 0x80))
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{
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/* Status byte MSB is always set */
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return DMUS_E_INVALID_EVENT;
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}
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if (!This->write_pos)
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This->start_time = ref_time;
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header = (DMUS_EVENTHEADER*)&This->data[This->write_pos];
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header->cbEvent = 3; /* Midi message takes 4 bytes space but only 3 are relevant */
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header->dwChannelGroup = channel_group;
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header->rtDelta = ref_time - This->start_time;
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header->dwFlags = DMUS_EVENT_STRUCTURED;
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*(DWORD*)&header[1] = channel_message;
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This->write_pos = new_write_pos;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_PackUnstructured(IDirectMusicBuffer *iface,
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REFERENCE_TIME ref_time, DWORD channel_group, DWORD len, BYTE *data)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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DWORD new_write_pos = This->write_pos + DMUS_EVENT_SIZE(len);
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DMUS_EVENTHEADER *header;
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TRACE("(%p, 0x%s, %d, %d, %p)\n", This, wine_dbgstr_longlong(ref_time), channel_group, len, data);
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if (new_write_pos > This->size)
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return DMUS_E_BUFFER_FULL;
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if (!This->write_pos)
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This->start_time = ref_time;
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header = (DMUS_EVENTHEADER*)&This->data[This->write_pos];
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header->cbEvent = len;
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header->dwChannelGroup = channel_group;
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header->rtDelta = ref_time - This->start_time;
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header->dwFlags = 0;
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memcpy(&header[1], data, len);
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This->write_pos = new_write_pos;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_ResetReadPtr(LPDIRECTMUSICBUFFER iface)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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FIXME("(%p): stub\n", This);
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetNextEvent(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prt, LPDWORD pdwChannelGroup, LPDWORD pdwLength, LPBYTE* ppData)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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FIXME("(%p, %p, %p, %p, %p): stub\n", This, prt, pdwChannelGroup, pdwLength, ppData);
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetRawBufferPtr(LPDIRECTMUSICBUFFER iface, LPBYTE* data)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%p)\n", iface, data);
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if (!data)
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return E_POINTER;
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*data = This->data;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetStartTime(LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME ref_time)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%p)\n", iface, ref_time);
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if (!ref_time)
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return E_POINTER;
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if (!This->write_pos)
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return DMUS_E_BUFFER_EMPTY;
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*ref_time = This->start_time;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetUsedBytes(LPDIRECTMUSICBUFFER iface, LPDWORD used_bytes)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%p)\n", iface, used_bytes);
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if (!used_bytes)
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return E_POINTER;
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*used_bytes = This->write_pos;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetMaxBytes(LPDIRECTMUSICBUFFER iface, LPDWORD max_bytes)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%p)\n", iface, max_bytes);
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if (!max_bytes)
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return E_POINTER;
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*max_bytes = This->size;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_GetBufferFormat(LPDIRECTMUSICBUFFER iface, LPGUID format)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%p)\n", iface, format);
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if (!format)
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return E_POINTER;
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*format = This->format;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_SetStartTime(LPDIRECTMUSICBUFFER iface, REFERENCE_TIME ref_time)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(0x%s)\n", This, wine_dbgstr_longlong(ref_time));
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This->start_time = ref_time;
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return S_OK;
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}
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static HRESULT WINAPI IDirectMusicBufferImpl_SetUsedBytes(LPDIRECTMUSICBUFFER iface, DWORD used_bytes)
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{
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IDirectMusicBufferImpl *This = impl_from_IDirectMusicBuffer(iface);
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TRACE("(%p)->(%u)\n", iface, used_bytes);
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if (used_bytes > This->size)
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return DMUS_E_BUFFER_FULL;
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This->write_pos = used_bytes;
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return S_OK;
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}
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static const IDirectMusicBufferVtbl DirectMusicBuffer_Vtbl = {
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IDirectMusicBufferImpl_QueryInterface,
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IDirectMusicBufferImpl_AddRef,
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IDirectMusicBufferImpl_Release,
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IDirectMusicBufferImpl_Flush,
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IDirectMusicBufferImpl_TotalTime,
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IDirectMusicBufferImpl_PackStructured,
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IDirectMusicBufferImpl_PackUnstructured,
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IDirectMusicBufferImpl_ResetReadPtr,
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IDirectMusicBufferImpl_GetNextEvent,
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IDirectMusicBufferImpl_GetRawBufferPtr,
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IDirectMusicBufferImpl_GetStartTime,
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IDirectMusicBufferImpl_GetUsedBytes,
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IDirectMusicBufferImpl_GetMaxBytes,
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IDirectMusicBufferImpl_GetBufferFormat,
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IDirectMusicBufferImpl_SetStartTime,
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IDirectMusicBufferImpl_SetUsedBytes
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};
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HRESULT DMUSIC_CreateDirectMusicBufferImpl(LPDMUS_BUFFERDESC desc, LPVOID* ret_iface)
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{
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IDirectMusicBufferImpl* dmbuffer;
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TRACE("(%p, %p)\n", desc, ret_iface);
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*ret_iface = NULL;
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dmbuffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBufferImpl));
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if (!dmbuffer)
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return E_OUTOFMEMORY;
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dmbuffer->IDirectMusicBuffer_iface.lpVtbl = &DirectMusicBuffer_Vtbl;
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dmbuffer->ref = 1;
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if (IsEqualGUID(&desc->guidBufferFormat, &GUID_NULL))
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dmbuffer->format = KSDATAFORMAT_SUBTYPE_MIDI;
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else
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dmbuffer->format = desc->guidBufferFormat;
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dmbuffer->size = (desc->cbBuffer + 3) & ~3; /* Buffer size must be multiple of 4 bytes */
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dmbuffer->data = HeapAlloc(GetProcessHeap(), 0, dmbuffer->size);
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if (!dmbuffer->data) {
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HeapFree(GetProcessHeap(), 0, dmbuffer);
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return E_OUTOFMEMORY;
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}
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DMUSIC_LockModule();
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*ret_iface = &dmbuffer->IDirectMusicBuffer_iface;
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return S_OK;
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}
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