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Added fake registers to Pixel Engine, so the game can read/write to them. This shouldn't really affect anything. 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2718 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
omegadox 2009-03-21 18:44:01 +00:00
parent 7a68eac29a
commit 853adcf5e4
1 changed files with 41 additions and 13 deletions
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54
Source/Core/Core/Src/HW/PixelEngine.cpp
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@ -33,19 +33,25 @@
#include "../Core.h"
#include "../ConfigManager.h"
u16 AlphaConfigReg = 0x0; // Fake Alpha Control Register
u16 ZConfigReg = 0x0; // Fake Z Control Register
u16 DstAlphaReg = 0x0; // Fake Alpha Dest Register
u16 AlphaModeReg = 0x0; // Fake Alpha Mode Register
u16 AlphaReg = 0x0; // Fake Alpha Register
namespace PixelEngine
{
// internal hardware addresses
enum
{
PE_CTRL_REGISTER = 0x00a,
PE_TOKEN_REG = 0x00e,
PE_ZCONF = 0x000,
PE_ALPHACONF = 0x002,
PE_DSTALPHACONF = 0x004,
PE_ALPHAMODE = 0x006,
PE_ALPHAREAD = 0x008,
PE_ZCONF = 0x000, // Z Config
PE_ALPHACONF = 0x002, // Alpha Config
PE_DSTALPHACONF = 0x004, // Destination Alpha Config
PE_ALPHAMODE = 0x006, // Alpha Mode Config
PE_ALPHAREAD = 0x008, // Alpha Read ?
PE_CTRL_REGISTER = 0x00a, // Control
PE_TOKEN_REG = 0x00e, // Token
};
// fifo Control Register
@ -113,7 +119,28 @@ void Read16(u16& _uReturnValue, const u32 _iAddress)
case PE_ALPHACONF:
// Most games read this early. no idea why.
INFO_LOG(PIXELENGINE, "(r16): PE_ALPHACONF");
break;
_uReturnValue = AlphaConfigReg;
return;
case PE_ZCONF:
INFO_LOG(PIXELENGINE, "(r16): PE_ZCONF");
_uReturnValue = ZConfigReg;
return;
case PE_DSTALPHACONF:
INFO_LOG(PIXELENGINE, "(r16): PE_DSTALPHACONF");
_uReturnValue = DstAlphaReg;
return;
case PE_ALPHAMODE:
INFO_LOG(PIXELENGINE, "(r16): PE_ALPHAMODE");
_uReturnValue = AlphaModeReg;
return;
case PE_ALPHAREAD:
INFO_LOG(PIXELENGINE, "(r16): PE_ALPHAREAD");
_uReturnValue = AlphaReg;
return;
default:
WARN_LOG(PIXELENGINE, "(r16): unknown @ %08x", _iAddress);
@ -157,11 +184,12 @@ void Write16(const u16 _iValue, const u32 _iAddress)
break;
// These are probably the settings for direct CPU EFB access. Ugh.
case PE_ZCONF: INFO_LOG(PIXELENGINE, "(w16) ZCONF: %02x", _iValue); break;
case PE_ALPHACONF: INFO_LOG(PIXELENGINE, "(w16) ALPHACONF: %02x", _iValue); break;
case PE_DSTALPHACONF: INFO_LOG(PIXELENGINE, "(w16) DSTALPHACONF: %02x", _iValue); break;
case PE_ALPHAMODE: INFO_LOG(PIXELENGINE, "(w16) ALPHAMODE: %02x", _iValue); break;
case PE_ALPHAREAD: INFO_LOG(PIXELENGINE, "(w16) ALPHAREAD: %02x", _iValue); break;
// Lets save the written config in a fake reg anyways
case PE_ZCONF: INFO_LOG(PIXELENGINE, "(w16) ZCONF: %02x", _iValue); ZConfigReg = _iValue; break;
case PE_ALPHACONF: INFO_LOG(PIXELENGINE, "(w16) ALPHACONF: %02x", _iValue); AlphaConfigReg = _iValue; break;
case PE_DSTALPHACONF: INFO_LOG(PIXELENGINE, "(w16) DSTALPHACONF: %02x", _iValue); DstAlphaReg = _iValue; break;
case PE_ALPHAMODE: INFO_LOG(PIXELENGINE, "(w16) ALPHAMODE: %02x", _iValue); AlphaModeReg = _iValue; break;
case PE_ALPHAREAD: INFO_LOG(PIXELENGINE, "(w16) ALPHAREAD: %02x", _iValue); AlphaReg = _iValue; break;
default:
WARN_LOG(PIXELENGINE, "Write16: unknown %04x @ %08x", _iValue, _iAddress);