[PATCH 1/1] handling sysex midi messages in winecoreaudio

tinez tinez at tlen.pl
Wed Feb 25 16:04:45 CST 2015


Ok, i hope i got it right this time.

Regards, tinez

---
  dlls/winecoreaudio.drv/midi.c | 68 
++++++++++++++++++++++++++++++-------------
  1 file changed, 48 insertions(+), 20 deletions(-)

W dniu 25.02.2015 o 22:16, Andrew Eikum pisze:
> On Wed, Feb 25, 2015 at 09:58:41PM +0100, tinez wrote:
>> Hi,
>>
>> this patch fixes handling sysex midi messages in winecoreaudio
>> driver. The code was based on winealsa driver implementation.
>> I've tested it using external midi hardware + midi monitoring tools
>> (MidiOX). My motivation was to fix Nord Modular Editor software
>> which is needed to control Nord Modular G1 hardware synthetizer.
>> After applying the patch it works without problems.
>> I've also sent out patch to electro-music.com for other people to
>> test and it was received well (you can see the thread here
>> electro-music.com/forum/viewtopic.php?t=62683).
>>
> Thanks, looks mostly good. A few Wine style notes in-line below.
>
>> regards, tinez
>>
>> ---
>>   dlls/winecoreaudio.drv/midi.c | 66
>> ++++++++++++++++++++++++++++++-------------
>>   1 file changed, 47 insertions(+), 19 deletions(-)
>>  From e18b1c9876730d9557b97f3e16249b20eae4e875 Mon Sep 17 00:00:00 2001
>> From: tinez <tinez at tlen.pl>
> Wine requires full, real names for patches.
>
>> Date: Thu, 21 Aug 2014 23:13:31 +0200
>> Subject: [PATCH 1/1] handling sysex midi messages in winecoreaudio
>>
>> ---
>>   dlls/winecoreaudio.drv/midi.c | 66 ++++++++++++++++++++++++++++++-------------
>>   1 file changed, 47 insertions(+), 19 deletions(-)
>>
>> diff --git a/dlls/winecoreaudio.drv/midi.c b/dlls/winecoreaudio.drv/midi.c
>> index 8593e9c..c7a1ded 100644
>> --- a/dlls/winecoreaudio.drv/midi.c
>> +++ b/dlls/winecoreaudio.drv/midi.c
>> @@ -437,9 +437,9 @@ static DWORD MIDIOut_LongData(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
>>               return MMSYSERR_ERROR;
>>           }
>>       }
>> -    else
>> +    else if (destinations[wDevID].caps.wTechnology == MOD_MIDIPORT)
>>       {
>> -        FIXME("MOD_MIDIPORT\n");
>> +        MIDIOut_Send(MIDIOutPort, destinations[wDevID].dest, lpData, lpMidiHdr->dwBufferLength);
>>       }
>>   
>>       lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
>> @@ -836,26 +836,55 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
>>               if (src->state < 1)
>>               {
>>                   TRACE("input not started, thrown away\n");
>> -                goto done;
>> -            }
>> -            /* FIXME skipping SysEx */
>> -            if (msg->data[0] == 0xF0)
>> -            {
>> -                FIXME("Starting System Exclusive\n");
>> -                src->state |= 2;
>> +                return NULL;
>>               }
>> -            if (src->state & 2)
>> -            {
>> -                for (i = 0; i < msg->length; ++i)
>> -                {
>> -                    if (msg->data[i] == 0xF7)
>> -                    {
>> -                        FIXME("Ending System Exclusive\n");
>> -                        src->state &= ~2;
>> +
>> +            bool sysexStart = (msg->data[0] == 0xF0);
>> +
> Wine uses C89, so we don't have 'bool'. You could change this to a
> BOOL instead.
>
>> +            if (sysexStart || src->state & 2) {
>> +                if (sysexStart) {
>> +                    TRACE("Receiving sysex message\n");
>> +                    src->state |= 2;
>> +                }
>> +
>> +                int pos = 0;
>> +                int len = msg->length;
>> +
> C89 also doesn't let you declare new variables in the middle of a
> block.  They must be declared at the start of a block.
>
>> +                EnterCriticalSection(&midiInLock);
>> +                currentTime = GetTickCount() - src->startTime;
>> +
>> +                while (len) {
>> +                    LPMIDIHDR lpMidiHdr = src->lpQueueHdr;
>> +
>> +                    if (lpMidiHdr != NULL) {
>> +                        int copylen = min(len, lpMidiHdr->dwBufferLength - lpMidiHdr->dwBytesRecorded);
>> +                        memcpy(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded, msg->data + pos, copylen);
>> +                        lpMidiHdr->dwBytesRecorded += copylen;
>> +                        len -= copylen;
>> +                        pos += copylen;
>> +
>> +                        TRACE("Copied %d bytes of sysex message\n", copylen);
>> +
>> +                        if ((lpMidiHdr->dwBytesRecorded == lpMidiHdr->dwBufferLength) ||
>> +				            (*(BYTE*)(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded - 1) == 0xF7)) {
>> +                            TRACE("Sysex message complete (or buffer limit reached), dispatching %d bytes\n", lpMidiHdr->dwBytesRecorded);
> Tabs should be spaces, for consistency with the rest of your code.
>
>> +                            src->lpQueueHdr = lpMidiHdr->lpNext;
>> +                            lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
>> +                            lpMidiHdr->dwFlags |= MHDR_DONE;
>> +                            MIDI_NotifyClient(msg->devID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, currentTime);
>> +                            src->state &= ~2;
>> +                        }
>> +                    }
>> +			        else {
> Here, too.
>
>> +                        FIXME("Sysex data received but no buffer to store it!\n");
>> +                        break;
>>                       }
>>                   }
>> -                goto done;
>> +
>> +                LeaveCriticalSection(&midiInLock);
>> +                return NULL;
>>               }
>> +
>>               EnterCriticalSection(&midiInLock);
>>               currentTime = GetTickCount() - src->startTime;
>>   
>> @@ -889,7 +918,6 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
>>               CFRunLoopStop(CFRunLoopGetCurrent());
>>               break;
>>       }
>> -done:
>>       return NULL;
>>   }
>>   
>> -- 
>> 1.9.3 (Apple Git-50)

-------------- next part --------------
From 718eb737a955262a08dafe2bcf5592a9660fdd3f Mon Sep 17 00:00:00 2001
From: tinez <tinez at tlen.pl>
Date: Thu, 21 Aug 2014 23:13:31 +0200
Subject: [PATCH 1/1] winecoreaudio.drv: Fixed handling sysex midi messages

---
 dlls/winecoreaudio.drv/midi.c | 68 ++++++++++++++++++++++++++++++-------------
 1 file changed, 48 insertions(+), 20 deletions(-)

diff --git a/dlls/winecoreaudio.drv/midi.c b/dlls/winecoreaudio.drv/midi.c
index 8593e9c..a40ca2a 100644
--- a/dlls/winecoreaudio.drv/midi.c
+++ b/dlls/winecoreaudio.drv/midi.c
@@ -437,9 +437,8 @@ static DWORD MIDIOut_LongData(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
             return MMSYSERR_ERROR;
         }
     }
-    else
-    {
-        FIXME("MOD_MIDIPORT\n");
+    else if (destinations[wDevID].caps.wTechnology == MOD_MIDIPORT) {
+        MIDIOut_Send(MIDIOutPort, destinations[wDevID].dest, lpData, lpMidiHdr->dwBufferLength);
     }
 
     lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
@@ -822,6 +821,7 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
     DWORD sendData = 0;
     int pos = 0;
     DWORD currentTime;
+    BOOL sysexStart;
 
     switch (msgid)
     {
@@ -836,26 +836,55 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
             if (src->state < 1)
             {
                 TRACE("input not started, thrown away\n");
-                goto done;
-            }
-            /* FIXME skipping SysEx */
-            if (msg->data[0] == 0xF0)
-            {
-                FIXME("Starting System Exclusive\n");
-                src->state |= 2;
+                return NULL;
             }
-            if (src->state & 2)
-            {
-                for (i = 0; i < msg->length; ++i)
-                {
-                    if (msg->data[i] == 0xF7)
-                    {
-                        FIXME("Ending System Exclusive\n");
-                        src->state &= ~2;
+
+            sysexStart = (msg->data[0] == 0xF0);
+
+            if (sysexStart || src->state & 2) {
+                int pos = 0;
+                int len = msg->length;
+
+                if (sysexStart) {
+                    TRACE("Receiving sysex message\n");
+                    src->state |= 2;
+                }
+
+                EnterCriticalSection(&midiInLock);
+                currentTime = GetTickCount() - src->startTime;
+
+                while (len) {
+                    LPMIDIHDR lpMidiHdr = src->lpQueueHdr;
+
+                    if (lpMidiHdr != NULL) {
+                        int copylen = min(len, lpMidiHdr->dwBufferLength - lpMidiHdr->dwBytesRecorded);
+                        memcpy(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded, msg->data + pos, copylen);
+                        lpMidiHdr->dwBytesRecorded += copylen;
+                        len -= copylen;
+                        pos += copylen;
+
+                        TRACE("Copied %d bytes of sysex message\n", copylen);
+
+                        if ((lpMidiHdr->dwBytesRecorded == lpMidiHdr->dwBufferLength) ||
+                            (*(BYTE*)(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded - 1) == 0xF7)) {
+                            TRACE("Sysex message complete (or buffer limit reached), dispatching %d bytes\n", lpMidiHdr->dwBytesRecorded);
+                            src->lpQueueHdr = lpMidiHdr->lpNext;
+                            lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
+                            lpMidiHdr->dwFlags |= MHDR_DONE;
+                            MIDI_NotifyClient(msg->devID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, currentTime);
+                            src->state &= ~2;
+                        }
+                    }
+                    else {
+                        FIXME("Sysex data received but no buffer to store it!\n");
+                        break;
                     }
                 }
-                goto done;
+
+                LeaveCriticalSection(&midiInLock);
+                return NULL;
             }
+
             EnterCriticalSection(&midiInLock);
             currentTime = GetTickCount() - src->startTime;
 
@@ -889,7 +918,6 @@ static CFDataRef MIDIIn_MessageHandler(CFMessagePortRef local, SInt32 msgid, CFD
             CFRunLoopStop(CFRunLoopGetCurrent());
             break;
     }
-done:
     return NULL;
 }
 
-- 
1.9.3 (Apple Git-50)



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