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Ge: Read matrix num/data back like hardware.

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In case any game accidentally relies on this.
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2022-09-05 19:37:58 -07:00
parent c0d5eb360e
commit 1d5c90d370
1 changed files with 26 additions and 2 deletions
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Core/HLE/sceGe.cpp
+26 -2
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@@ -565,8 +565,32 @@ static int sceGeGetMtx(int type, u32 matrixPtr) {
static u32 sceGeGetCmd(int cmd) {
if (cmd >= 0 && cmd < (int)ARRAY_SIZE(gstate.cmdmem)) {
// Does not mask away the high bits.
return hleLogSuccessInfoX(SCEGE, gstate.cmdmem[cmd]);
// Does not mask away the high bits. But matrix regs don't read back.
u32 val = gstate.cmdmem[cmd];
switch (cmd) {
case GE_CMD_BONEMATRIXDATA:
case GE_CMD_WORLDMATRIXDATA:
case GE_CMD_VIEWMATRIXDATA:
case GE_CMD_PROJMATRIXDATA:
case GE_CMD_TGENMATRIXDATA:
val &= 0xFF000000;
break;
case GE_CMD_BONEMATRIXNUMBER:
val &= 0xFF00007F;
break;
case GE_CMD_WORLDMATRIXNUMBER:
case GE_CMD_VIEWMATRIXNUMBER:
case GE_CMD_PROJMATRIXNUMBER:
case GE_CMD_TGENMATRIXNUMBER:
val &= 0xFF00000F;
break;
default:
break;
}
return hleLogSuccessInfoX(SCEGE, val);
}
return hleLogError(SCEGE, SCE_KERNEL_ERROR_INVALID_INDEX);
}