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fix r5031 gxfifo regression

This commit is contained in:
zeromus 2015-08-04 23:11:53 +00:00
parent 96c47d6734
commit 761834948d
1 changed files with 11 additions and 0 deletions
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11
desmume/src/gfx3d.cpp
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@ -177,8 +177,19 @@ public:
GFX_FIFOsend(currCommand, 0); GFX_FIFOsend(currCommand, 0);
shiftCommand >>= 8; shiftCommand >>= 8;
} }
else if(currCommand == 0 && shiftCommand!=0)
{
//quantum of solace will send a command: 0x001B1100
//you see NOP in the first command. that needs to get bypassed somehow.
//since the general goal here is to process packed commands until we have none left (0's will be shifted in)
//we can just skip this command and continue processing if theres anything left to process.
shiftCommand >>= 8;
}
else if(currCommandType == GFX_INVALID_COMMAND) else if(currCommandType == GFX_INVALID_COMMAND)
{
//break when the current command is invalid. 0x00 is invalid; this is what gets used to terminate a loop after all the commands are handled
break; break;
}
else else
{ {
paramCounter = currCommandType; paramCounter = currCommandType;