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fix regression in gxfifo 0x00 command handling (fixes galactik and nintendogs:dalmatian)

This commit is contained in:
zeromus 2009-09-22 16:59:33 +00:00
parent ab8f50eae2
commit 3a74300a72
1 changed files with 10 additions and 8 deletions
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18
desmume/src/gfx3d.cpp
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@ -114,7 +114,7 @@ public:
//{}
//else
{
//printf("gxf: sending hack %02X: (dummy=0)\n", commandsPending.front());
//printf("gxf: sending hack %02X: (dummy=0)\n", front().command);
GFX_FIFOsend(front().command,0);
}
hack = true;
@ -122,7 +122,7 @@ public:
}
if(countdown>0) {
//received a parameter
//printf("gxf: sending %02X: %08X\n", commandsPending.front(),val);
//printf("gxf: sending %02X: %08X\n", front().command,val);
//if(commandsPending.front() == GFX3D_NOP_NOARG_HACK)
//{}
//else
@ -138,19 +138,17 @@ public:
countdown = front().countdown;
if(!countdown) {
if(front().command != INVALID_COMMAND /*&& commandsPending.front() != GFX3D_NOP_NOARG_HACK*/) {
//printf("[%06d]gxf: sending %02X: (dummy=0)\n", currFrameCounter,commandsPending.front());
//printf("[%06d]gxf: sending %02X: (dummy=0)\n", currFrameCounter,front().command);
GFX_FIFOsend(front().command,0);
}
}
}
if(hack) goto decode;
} else {
//decode a packed command
decode:
//printf("[%05d] gxf: decoding %08X\n",currFrameCounter,val);
if(val==0x2D8B62D8) {
int zzz=9;
}
//received a packed command. unpack into commandsPending
bool valid = true;
bool gimpyCommand = false;
const u8 commands[] = { val&0xFF, (val>>8)&0xFF, (val>>16)&0xFF, (val>>24)&0xFF };
@ -163,10 +161,14 @@ decode:
commandsPending[i].command = INVALID_COMMAND;
} else {
if(type == UNDEFINED_COMMAND)
{
commandsPending[i].command = GFX3D_NOP_NOARG_HACK; //enqueue a single undefined command we know how to handle
}
else commandsPending[i].command = cmd;
}
if(type == UNDEFINED_COMMAND || type == 0x00) {
if(type == UNDEFINED_COMMAND
//|| type == 0x00 //DON'T DO THIS: galactik football will break if you do (ingame character portraits etc.) as well as nintendogs dalmatian
) {
//these are valid commands with no parameters. they might need special handling
//as long as there is a subsequent defined command with parameters, we're safe
bool safe = false;