dlls/quartz/control.c

   1 /*
   2  * Filter Seeking and Control Interfaces
   3  *
   4  * Copyright 2003 Robert Shearman
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 /* FIXME: critical sections */
  21
  22 #include "quartz_private.h"
  23 #include "control_private.h"
  24
  25 #include "uuids.h"
  26 #include "wine/debug.h"
  27
  28 #include <assert.h>
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  31
  32 HRESULT MediaSeekingImpl_Init(LPVOID pUserData, CHANGEPROC fnChangeStop, CHANGEPROC fnChangeStart, CHANGEPROC fnChangeRate, MediaSeekingImpl * pSeeking)
  33 {
  34     assert(fnChangeStop && fnChangeStart && fnChangeRate);
  35
  36     pSeeking->refCount = 1;
  37     pSeeking->pUserData = pUserData;
  38     pSeeking->fnChangeRate = fnChangeRate;
  39     pSeeking->fnChangeStop = fnChangeStop;
  40     pSeeking->fnChangeStart = fnChangeStart;
  41     pSeeking->dwCapabilities = AM_SEEKING_CanSeekForwards |
  42         AM_SEEKING_CanSeekBackwards |
  43         AM_SEEKING_CanSeekAbsolute |
  44         AM_SEEKING_CanGetStopPos |
  45         AM_SEEKING_CanGetDuration;
  46     pSeeking->llStart = 0;
  47     pSeeking->llStop = ((ULONGLONG)0x80000000) << 32;
  48     pSeeking->llDuration = pSeeking->llStop - pSeeking->llStart;
  49     pSeeking->dRate = 1.0;
  50
  51     return S_OK;
  52 }
  53
  54
  55 HRESULT WINAPI MediaSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
  56 {
  57     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
  58
  59     TRACE("(%p)\n", pCapabilities);
  60
  61     *pCapabilities = This->dwCapabilities;
  62
  63     return S_OK;
  64 }
  65
  66 HRESULT WINAPI MediaSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
  67 {
  68     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
  69     HRESULT hr;
  70     DWORD dwCommonCaps;
  71
  72     TRACE("(%p)\n", pCapabilities);
  73
  74     dwCommonCaps = *pCapabilities & This->dwCapabilities;
  75
  76     if (!dwCommonCaps)
  77         hr = E_FAIL;
  78     else
  79         hr = (*pCapabilities == dwCommonCaps) ?  S_OK : S_FALSE;
  80     *pCapabilities = dwCommonCaps;
  81
  82     return hr;
  83 }
  84
  85 HRESULT WINAPI MediaSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
  86 {
  87     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
  88
  89     return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
  90 }
  91
  92 HRESULT WINAPI MediaSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
  93 {
  94     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
  95
  96     *pFormat = TIME_FORMAT_MEDIA_TIME;
  97     return S_OK;
  98 }
  99
 100 HRESULT WINAPI MediaSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
 101 {
 102     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 103
 104     *pFormat = TIME_FORMAT_MEDIA_TIME;
 105     return S_OK;
 106 }
 107
 108 HRESULT WINAPI MediaSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 109 {
 110     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 111
 112     return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
 113 }
 114
 115 HRESULT WINAPI MediaSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 116 {
 117     TRACE("(%s)\n", qzdebugstr_guid(pFormat));
 118
 119     return (IsEqualIID(pFormat, &TIME_FORMAT_MEDIA_TIME) ? S_OK : S_FALSE);
 120 }
 121
 122 HRESULT WINAPI MediaSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
 123 {
 124     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 125
 126     TRACE("(%p)\n", pDuration);
 127
 128     *pDuration = This->llDuration;
 129
 130     return S_OK;
 131 }
 132
 133 HRESULT WINAPI MediaSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
 134 {
 135     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 136
 137     TRACE("(%p)\n", pStop);
 138
 139     *pStop = This->llStop;
 140
 141     return S_OK;
 142 }
 143
 144 HRESULT WINAPI MediaSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
 145 {
 146     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 147
 148     TRACE("(%p)\n", pCurrent);
 149
 150     *pCurrent = This->llStart;
 151
 152     return S_OK;
 153 }
 154
 155 HRESULT WINAPI MediaSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
 156 {
 157     if (IsEqualIID(pTargetFormat, &TIME_FORMAT_MEDIA_TIME) && IsEqualIID(pSourceFormat, &TIME_FORMAT_MEDIA_TIME))
 158     {
 159         *pTarget = Source;
 160         return S_OK;
 161     }
 162     /* FIXME: clear pTarget? */
 163     return E_INVALIDARG;
 164 }
 165
 166 __inline LONGLONG Adjust(LONGLONG value, LONGLONG * pModifier, DWORD dwFlags)
 167 {
 168     switch (dwFlags & AM_SEEKING_PositioningBitsMask)
 169     {
 170     case AM_SEEKING_NoPositioning:
 171         return value;
 172     case AM_SEEKING_AbsolutePositioning:
 173         return *pModifier;
 174     case AM_SEEKING_RelativePositioning:
 175     case AM_SEEKING_IncrementalPositioning:
 176         return value + *pModifier;
 177     default:
 178         assert(FALSE);
 179         return 0;
 180     }
 181 }
 182
 183 HRESULT WINAPI MediaSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
 184 {
 185     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 186     BOOL bChangeStart = FALSE, bChangeStop = FALSE;
 187     LONGLONG llNewStart, llNewStop;
 188
 189     TRACE("(%p, %lx, %p, %lx)\n", pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 190
 191     llNewStart = Adjust(This->llStart, pCurrent, dwCurrentFlags);
 192     llNewStop = Adjust(This->llStop, pStop, dwStopFlags);
 193
 194     if (llNewStart != This->llStart)
 195         bChangeStart = TRUE;
 196     if (llNewStop != This->llStop)
 197         bChangeStop = TRUE;
 198
 199     This->llStart = llNewStart;
 200     This->llStop = llNewStop;
 201
 202     if (dwCurrentFlags & AM_SEEKING_ReturnTime)
 203         *pCurrent = llNewStart;
 204     if (dwStopFlags & AM_SEEKING_ReturnTime)
 205         *pStop = llNewStop;
 206
 207     if (bChangeStart)
 208         This->fnChangeStart(This->pUserData);
 209     if (bChangeStop)
 210         This->fnChangeStop(This->pUserData);
 211
 212     return S_OK;
 213 }
 214
 215 HRESULT WINAPI MediaSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
 216 {
 217     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 218
 219     TRACE("(%p, %p)\n", pCurrent, pStop);
 220
 221     *pCurrent = This->llStart;
 222     *pStop = This->llStop;
 223
 224     return S_OK;
 225 }
 226
 227 HRESULT WINAPI MediaSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
 228 {
 229     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 230
 231     TRACE("(%p, %p)\n", pEarliest, pLatest);
 232
 233     *pEarliest = 0;
 234     *pLatest = This->llDuration;
 235
 236     return S_OK;
 237 }
 238
 239 HRESULT WINAPI MediaSeekingImpl_SetRate(IMediaSeeking * iface, double dRate)
 240 {
 241     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 242     BOOL bChangeRate = (dRate != This->dRate);
 243
 244     TRACE("(%e)\n", dRate);
 245
 246     This->dRate = dRate;
 247
 248     if (bChangeRate)
 249         return This->fnChangeRate(This->pUserData);
 250     else
 251         return S_OK;
 252 }
 253
 254 HRESULT WINAPI MediaSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate)
 255 {
 256     MediaSeekingImpl *This = (MediaSeekingImpl *)iface;
 257
 258     TRACE("(%p)\n", dRate);
 259
 260     *dRate = This->dRate;
 261
 262     return S_OK;
 263 }
 264
 265 HRESULT WINAPI MediaSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
 266 {
 267     TRACE("(%p)\n", pPreroll);
 268
 269     *pPreroll = 0;
 270     return S_OK;
 271 }