1 // ****************************************************************************
2 //
3 // CEchoGals_midi.cpp
4 //
5 // Implementation file for the CEchoGals driver class (midi functions).
6 //
7 // Set editor tabs to 3 for your viewing pleasure.
8 //
9 // ----------------------------------------------------------------------------
10 //
11 // This file is part of Echo Digital Audio's generic driver library.
12 // Copyright Echo Digital Audio Corporation (c) 1998 - 2005
13 // All rights reserved
14 // www.echoaudio.com
15 //
16 // This library is free software; you can redistribute it and/or
17 // modify it under the terms of the GNU Lesser General Public
18 // License as published by the Free Software Foundation; either
19 // version 2.1 of the License, or (at your option) any later version.
20 //
21 // This library is distributed in the hope that it will be useful,
22 // but WITHOUT ANY WARRANTY; without even the implied warranty of
23 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 // Lesser General Public License for more details.
25 //
26 // You should have received a copy of the GNU Lesser General Public
27 // License along with this library; if not, write to the Free Software
28 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 //
30 // ****************************************************************************
31
32 #include "CEchoGals.h"
33
34
35 #ifdef MIDI_SUPPORT
36
37 /****************************************************************************
38
39 MIDI output
40
41 ****************************************************************************/
42
43 //===========================================================================
44 //
45 // Write a bunch of MIDI data to the MIDI output
46 //
47 // The DSP only buffers up 64 bytes internally for MIDI output; if you try
48 // to send more than the DSP can handle, the actual count sent will be returned
49 // to you. ECHOSTATUS_BUSY is returned if the DSP is still processing the
50 // last driver command.
51 //
52 //===========================================================================
53
WriteMidi(DWORD dwExpectedCt,PBYTE pBuffer,PDWORD pdwActualCt)54 ECHOSTATUS CEchoGals::WriteMidi
55 (
56 DWORD dwExpectedCt,
57 PBYTE pBuffer,
58 PDWORD pdwActualCt
59 )
60 {
61 return GetDspCommObject()->WriteMidi( pBuffer,
62 dwExpectedCt,
63 pdwActualCt );
64 } // ECHOSTATUS CLayla24::WriteMidi
65
66
67
68
69 /****************************************************************************
70
71 MIDI input
72
73 ****************************************************************************/
74
75
76 //===========================================================================
77 //
78 // Read a single MIDI byte from the circular MIDI input buffer
79 //
80 //===========================================================================
81
ReadMidiByte(ECHOGALS_MIDI_IN_CONTEXT * pContext,DWORD & dwMidiData,LONGLONG & llTimestamp)82 ECHOSTATUS CEchoGals::ReadMidiByte
83 (
84 ECHOGALS_MIDI_IN_CONTEXT *pContext,
85 DWORD &dwMidiData,
86 LONGLONG &llTimestamp
87 )
88 {
89
90 return m_MidiIn.GetMidi(pContext,dwMidiData,llTimestamp);
91
92 } // ReadMidiByte
93
94
95 //===========================================================================
96 //
97 // Open and enable the MIDI input
98 //
99 // The context struct should be set to zero before calling OpenMidiInput
100 //
101 //===========================================================================
102
OpenMidiInput(ECHOGALS_MIDI_IN_CONTEXT * pContext)103 ECHOSTATUS CEchoGals::OpenMidiInput(ECHOGALS_MIDI_IN_CONTEXT *pContext)
104 {
105
106 return m_MidiIn.Arm(pContext);
107
108 } // OpenMidiInput
109
110
111 //===========================================================================
112 //
113 // Close and disable the MIDI input
114 //
115 //===========================================================================
116
CloseMidiInput(ECHOGALS_MIDI_IN_CONTEXT * pContext)117 ECHOSTATUS CEchoGals::CloseMidiInput(ECHOGALS_MIDI_IN_CONTEXT *pContext)
118 {
119 return m_MidiIn.Disarm(pContext);
120 }
121
122
123 //===========================================================================
124 //
125 // Reset the MIDI input, but leave it open and enabled
126 //
127 //===========================================================================
128
ResetMidiInput(ECHOGALS_MIDI_IN_CONTEXT * pContext)129 ECHOSTATUS CEchoGals::ResetMidiInput(ECHOGALS_MIDI_IN_CONTEXT *pContext)
130 {
131 m_MidiIn.Reset(pContext);
132
133 return ECHOSTATUS_OK;
134 }
135
136
137
138 #endif // MIDI_SUPPORT
139
140