519 lines
13 KiB
C++
519 lines
13 KiB
C++
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/******************************Module*Header*******************************\
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* Module Name: commands.c
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*
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* Executes the users commands.
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*
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*
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* Created: 18-11-93
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* Author: Stephen Estrop [StephenE]
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*
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* Copyright (c) 1993 Microsoft Corporation
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\**************************************************************************/
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#pragma warning( once : 4201 4214 )
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#define NOOLE
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#include <windows.h> /* required for all Windows applications */
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#include <windowsx.h>
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#include <string.h>
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#include <malloc.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "playres.h"
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#include "cdplayer.h"
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#include "ledwnd.h"
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#include "cdapi.h"
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#include "scan.h"
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#include "trklst.h"
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#include "database.h"
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#include "commands.h"
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#define PREVTRAK_TIMELIMIT 3 //seconds
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extern IMMFWNotifySink* g_pSink;
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/******************************Public*Routine******************************\
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* CdPlayerEjectCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerEjectCmd(
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void
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)
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{
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if (g_State & CD_PAUSED) {
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g_State &= (~(CD_PAUSED_AND_MOVED | CD_PAUSED));
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}
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if (g_State & CD_PLAYING) {
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g_State &= ~CD_PLAYING;
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g_State |= CD_STOPPED;
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}
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if (EjectTheCdromDisc(g_CurrCdrom))
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{
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g_State = (CD_NO_CD | CD_STOPPED);
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SetPlayButtonsEnableState();
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TimeAdjustInitialize( g_CurrCdrom );
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g_pSink->OnEvent(MMEVENT_ONMEDIAUNLOADED,NULL);
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}
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}
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/******************************Public*Routine******************************\
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* CdPlayerPlayCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerPlayCmd(
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void
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)
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{
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/*
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** If we can't lock all the cdrom devices
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** don't do anything. The user will have press
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** the play button again.
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*/
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if ( LockALLTableOfContents() ) {
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if (g_State & CD_LOADED ) {
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if ((g_State & CD_STOPPED) && PlayCurrTrack( g_CurrCdrom )) {
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g_State &= ~CD_STOPPED;
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g_State |= CD_PLAYING;
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}
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else if ( g_State & CD_PAUSED ) {
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if ( g_State & CD_PAUSED_AND_MOVED ) {
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g_State &= ~CD_PAUSED_AND_MOVED;
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g_State |= CD_PLAYING;
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if ( SeekToCurrSecond( g_CurrCdrom ) ) {
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g_State &= ~CD_PAUSED;
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g_State |= CD_PLAYING;
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}
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else {
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g_State &= ~CD_PLAYING;
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}
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}
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else if ( ResumeTheCdromDrive( g_CurrCdrom ) ) {
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g_State &= ~CD_PAUSED;
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g_State |= CD_PLAYING;
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}
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UpdateDisplay( DISPLAY_UPD_LED );
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}
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if (g_State & CD_PLAYING)
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{
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g_pSink->OnEvent(MMEVENT_ONPLAY,NULL);
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}
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}
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else {
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#if DBG
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dprintf( TEXT("Failing play because NO disc loaded") );
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#endif
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}
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SetPlayButtonsEnableState();
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}
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}
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/******************************Public*Routine******************************\
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* CdPlayerPauseCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerPauseCmd(
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void
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)
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{
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/*
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** If we can't lock all the cdrom devices
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** don't do anything. The user will have press
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** the pause button again.
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*/
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if ( LockALLTableOfContents() ) {
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if ( g_State & CD_PLAYING )
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{
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if ( PauseTheCdromDrive( g_CurrCdrom ) )
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{
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g_State &= ~CD_PLAYING;
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g_State |= CD_PAUSED;
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g_pSink->OnEvent(MMEVENT_ONPAUSE,NULL);
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}
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}
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else if ( g_State & CD_PAUSED )
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{
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if ( g_State & CD_PAUSED_AND_MOVED ) {
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g_State &= ~CD_PAUSED_AND_MOVED;
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g_State |= CD_PLAYING;
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if ( SeekToCurrSecond( g_CurrCdrom ) ) {
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g_State &= ~CD_PAUSED;
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g_State |= CD_PLAYING;
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}
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else {
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g_State &= ~CD_PLAYING;
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}
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}
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else if ( ResumeTheCdromDrive( g_CurrCdrom ) ) {
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g_State &= ~CD_PAUSED;
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g_State |= CD_PLAYING;
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}
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UpdateDisplay( DISPLAY_UPD_LED );
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if (g_State & CD_PLAYING)
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{
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g_pSink->OnEvent(MMEVENT_ONPLAY,NULL);
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}
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}
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SetPlayButtonsEnableState();
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}
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}
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/******************************Public*Routine******************************\
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* CdPlayerStopCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerStopCmd(
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void
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)
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{
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/*
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** If we can't lock all the cdrom devices
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** don't do anything. The user will have press
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** the stop button again.
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*/
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if ( LockALLTableOfContents() ) {
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BOOL bPlaying, bPaused;
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bPlaying = g_State & CD_PLAYING;
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bPaused = g_State & CD_PAUSED;
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if ( (bPlaying || bPaused) && StopTheCdromDrive(g_CurrCdrom) ) {
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g_State &= ~(bPlaying ? CD_PLAYING : CD_PAUSED);
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g_State |= CD_STOPPED;
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/*
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** Stop the current play operation and seek to the first
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** playable track.
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*/
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CURRTRACK(g_CurrCdrom) = FindFirstTrack( g_CurrCdrom );
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TimeAdjustSkipToTrack( g_CurrCdrom, CURRTRACK(g_CurrCdrom) );
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UpdateDisplay( DISPLAY_UPD_LED | DISPLAY_UPD_TRACK_TIME |
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DISPLAY_UPD_TRACK_NAME );
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SetPlayButtonsEnableState();
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// Stop it again!!!
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// This is to prevent a strange bug with NEC 4x,6x players
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// Where a SEEK command in TimeAdjustSkipToTrack causes
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// The ejection mechanism to get locked.
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if (StopTheCdromDrive (g_CurrCdrom))
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{
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g_pSink->OnEvent(MMEVENT_ONSTOP,NULL);
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}
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}
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}
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}
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/******************************Public*Routine******************************\
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* CdPlayerPrevTrackCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerPrevTrackCmd(
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void
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)
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{
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/*
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** If we can't lock all the cdrom devices
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** don't do anything. The user will have press
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** the previous track button again.
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*/
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if ( LockALLTableOfContents() ) {
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DWORD dwOldState;
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int i, j;
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PTRACK_PLAY tr;
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if ( (CDTIME(g_CurrCdrom).TrackCurSec <= PREVTRAK_TIMELIMIT)
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&& (CDTIME(g_CurrCdrom).TrackCurMin == 0) ) {
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dwOldState = g_State;
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i = g_CurrCdrom;
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tr = FindPrevTrack( g_CurrCdrom, g_fContinuous );
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if ( tr == NULL ) {
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/*
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** If we were Paused or Playing fake a press on the
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** "stop" button
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*/
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if ( g_State & (CD_PLAYING | CD_PAUSED) ) {
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_STOP)],
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WM_LBUTTONDOWN, 0, 0L );
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_STOP)],
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WM_LBUTTONUP, 0, 0L );
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}
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}
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else {
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TimeAdjustSkipToTrack( g_CurrCdrom, tr );
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if ( (i != g_CurrCdrom) && (dwOldState & CD_PLAYING) )
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{
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j = g_CurrCdrom;
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g_CurrCdrom = i;
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//don't allow the ledwnd to paint
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LockWindowUpdate(g_hwndControls[INDEX(IDC_LED)]);
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SwitchToCdrom( j, FALSE );
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LockWindowUpdate(NULL);
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//switchtocdrom command stopped drive, setting us back to track 1...
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//reset to correct track
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TimeAdjustSkipToTrack( g_CurrCdrom, tr );
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_PLAY)],
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WM_LBUTTONDOWN, 0, 0L );
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_PLAY)],
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WM_LBUTTONUP, 0, 0L );
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}
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}
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}
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else {
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TimeAdjustSkipToTrack( g_CurrCdrom, CURRTRACK( g_CurrCdrom ) );
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}
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}
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}
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/******************************Public*Routine******************************\
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* CdPlayerNextTrackCmd
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*
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*
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*
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* History:
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* 18-11-93 - StephenE - Created
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*
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\**************************************************************************/
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void
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CdPlayerNextTrackCmd(
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void
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)
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{
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/*
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** If we can't lock all the cdrom devices
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** don't do anything. The user will have press
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** the next track button again.
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*/
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if ( LockALLTableOfContents() ) {
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DWORD dwOldState;
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PTRACK_PLAY tr;
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dwOldState = g_State;
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tr = FindNextTrack( g_fContinuous );
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if ( tr == NULL ) {
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/*
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** If the CD is playing fake a press on the "stop" button
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** otherwise call the stop function directly.
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*/
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if ( g_State & (CD_PLAYING | CD_PAUSED) ) {
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_STOP)],
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WM_LBUTTONDOWN, 0, 0L );
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_STOP)],
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WM_LBUTTONUP, 0, 0L );
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}
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else {
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/*
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** Seek to the first playable track.
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*/
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CURRTRACK(g_CurrCdrom) = FindFirstTrack( g_CurrCdrom );
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if (CURRTRACK(g_CurrCdrom) != NULL ) {
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TimeAdjustSkipToTrack( g_CurrCdrom,
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CURRTRACK(g_CurrCdrom) );
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UpdateDisplay( DISPLAY_UPD_LED | DISPLAY_UPD_TRACK_TIME |
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DISPLAY_UPD_TRACK_NAME );
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SetPlayButtonsEnableState();
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}
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}
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}
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else {
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if ( g_LastCdrom != g_CurrCdrom) {
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SwitchToCdrom( g_CurrCdrom,FALSE);
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TimeAdjustSkipToTrack( g_CurrCdrom, tr );
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if ( dwOldState & CD_PLAYING ) {
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_PLAY)],
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WM_LBUTTONDOWN, 0, 0L );
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SendMessage( g_hwndControls[INDEX(IDM_PLAYBAR_PLAY)],
|
||
|
|
WM_LBUTTONUP, 0, 0L );
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
TimeAdjustSkipToTrack( g_CurrCdrom, tr );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************Public*Routine******************************\
|
||
|
|
* CdPlayerSeekCmd
|
||
|
|
*
|
||
|
|
* How Seek works.
|
||
|
|
*
|
||
|
|
* When the user presses a seek button (forwards or backwards) this function
|
||
|
|
* gets called. The cdplayer can be in three possible states:
|
||
|
|
*
|
||
|
|
* 1. Playing
|
||
|
|
* 2. Paused
|
||
|
|
* 3. Stopped
|
||
|
|
*
|
||
|
|
* In state 1 (playing) we pause the device and alter its global state flags
|
||
|
|
* to show that it was playing (CD_WAS_PLAYING). This is so that we can
|
||
|
|
* return to the playing state when the user stops seeking.
|
||
|
|
*
|
||
|
|
* We then start a timer. We always call the timer function, this means
|
||
|
|
* that we will allways skip one second no matter how quickly the user
|
||
|
|
* clicks the seek button. The timer just increments (or decrements) the
|
||
|
|
* current play position according to the currrent play list. When the users
|
||
|
|
* releases the seek button we stop the timer and resume playing if the
|
||
|
|
* CD_WAS_PLAYING flag was set.
|
||
|
|
*
|
||
|
|
* The interesting case is when we try to seek beyond the end of the current
|
||
|
|
* play list. We detect this by testing the state of CURRTRACK(g_CurrCdrom).
|
||
|
|
* If NULL we have come to the end of the play list. If we were paused or
|
||
|
|
* previously playing we fake a stop command by sending a WM_LBUTTONDOWN,
|
||
|
|
* WM_LBUTTONUP message pair to the stop button. This causes the focus
|
||
|
|
* to be moved from the currently pressed seek button, which means that
|
||
|
|
* this function will get called BEFORE the CdPlayerStopCmd function. So
|
||
|
|
* by the time CdPlayerStopCmd gets called the correct playing state of
|
||
|
|
* the cdrom device would have been restored by the code below.
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* History:
|
||
|
|
* 18-11-93 - StephenE - Created
|
||
|
|
*
|
||
|
|
\**************************************************************************/
|
||
|
|
void
|
||
|
|
CdPlayerSeekCmd(
|
||
|
|
HWND hwnd,
|
||
|
|
BOOL fStart,
|
||
|
|
UINT uDirection
|
||
|
|
)
|
||
|
|
{
|
||
|
|
UINT_PTR rc;
|
||
|
|
BOOL frc;
|
||
|
|
|
||
|
|
if ( fStart ) {
|
||
|
|
|
||
|
|
if (g_State & CD_PLAYING) {
|
||
|
|
|
||
|
|
g_State &= ~CD_PLAYING;
|
||
|
|
g_State |= CD_WAS_PLAYING;
|
||
|
|
|
||
|
|
PauseTheCdromDrive( g_CurrCdrom );
|
||
|
|
}
|
||
|
|
g_State |= CD_SEEKING;
|
||
|
|
|
||
|
|
rc = SetTimer( hwnd, uDirection, SKIPBEAT_TIMER_RATE,
|
||
|
|
(TIMERPROC)SkipBeatTimerProc );
|
||
|
|
ASSERT(rc != 0);
|
||
|
|
|
||
|
|
SkipBeatTimerProc( hwnd, WM_TIMER, uDirection, 0L );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
g_State &= ~CD_SEEKING;
|
||
|
|
|
||
|
|
if (g_State & CD_WAS_PLAYING) {
|
||
|
|
|
||
|
|
g_State &= ~CD_WAS_PLAYING;
|
||
|
|
g_State |= CD_PLAYING;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( g_State & CD_PAUSED ) {
|
||
|
|
g_State |= CD_PAUSED_AND_MOVED;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
SeekToCurrSecond( g_CurrCdrom );
|
||
|
|
}
|
||
|
|
|
||
|
|
frc = KillTimer( hwnd, uDirection );
|
||
|
|
ASSERT(frc != FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|