+++ /dev/null
-/*
- * 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 <dmksctrl.h>
-
-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;
-}
projects / reactos.git / blobdiff