From 1d77c9f0cf710e1f9f439ad371cb1b49624aed75 Mon Sep 17 00:00:00 2001
From: Martin Kiewitz
Date: Fri, 20 Dec 2013 01:01:26 +0100
Subject: SCI: script patcher cleanup

---
 engines/sci/engine/script_patches.h | 58 ++++++++++++++++++++-----------------
 1 file changed, 32 insertions(+), 26 deletions(-)

(limited to 'engines/sci/engine/script_patches.h')

diff --git a/engines/sci/engine/script_patches.h b/engines/sci/engine/script_patches.h
index 5d3ee22f7a..d634db8089 100644
--- a/engines/sci/engine/script_patches.h
+++ b/engines/sci/engine/script_patches.h
@@ -27,41 +27,47 @@
 
 namespace Sci {
 
-#define SIG_END               0xFFFF
-#define SIG_MISMATCH          0xFFFE
-#define SIG_COMMANDMASK       0xF000
-#define SIG_VALUEMASK         0x0FFF
-#define SIG_BYTEMASK          0x00FF
-#define SIG_MAGICDWORD        0xF000
-#define SIG_ADDTOOFFSET       0xE000
-#define SIG_SELECTOR16        0x9000
-#define SIG_SELECTOR8         0x8000
-#define SIG_UINT16            0x1000
-#define SIG_BYTE              0x0000
-
-#define PATCH_END                   SIG_END
-#define PATCH_COMMANDMASK           SIG_COMMANDMASK
-#define PATCH_VALUEMASK             SIG_VALUEMASK
-#define PATCH_BYTEMASK              SIG_BYTEMASK
-#define PATCH_ADDTOOFFSET           SIG_ADDTOOFFSET
-#define PATCH_GETORIGINALBYTE       0xD000
-#define PATCH_GETORIGINALBYTEADJUST 0xC000
-#define PATCH_SELECTOR16            SIG_SELECTOR16
-#define PATCH_SELECTOR8             SIG_SELECTOR8
-#define PATCH_UINT16                SIG_UINT16
-#define PATCH_BYTE                  SIG_BYTE
+// Please do not use the #defines, that are called SIG_code* / PATCH_code* inside signature/patch-tables
+#define SIG_END                      0xFFFF
+#define SIG_MISMATCH                 0xFFFE
+#define SIG_COMMANDMASK              0xF000
+#define SIG_VALUEMASK                0x0FFF
+#define SIG_BYTEMASK                 0x00FF
+#define SIG_MAGICDWORD               0xF000
+#define SIG_codeADDTOOFFSET          0xE000
+#define SIG_ADDTOOFFSET(_offset_)    SIG_codeADDTOOFFSET | _offset_
+#define SIG_codeSELECTOR16           0x9000
+#define SIG_SELECTOR16(_selectorID_) SIG_codeSELECTOR16 | _selectorID_
+#define SIG_codeSELECTOR8            0x8000
+#define SIG_SELECTOR8(_selectorID_)  SIG_codeSELECTOR8 | _selectorID_
+#define SIG_codeUINT16               0x1000
+#define SIG_UINT16(_value_)          SIG_codeUINT16 | (_value_ & 0xFF), (_value_ >> 8)
+#define SIG_codeBYTE                 0x0000
+
+#define PATCH_END                      SIG_END
+#define PATCH_COMMANDMASK              SIG_COMMANDMASK
+#define PATCH_VALUEMASK                SIG_VALUEMASK
+#define PATCH_BYTEMASK                 SIG_BYTEMASK
+#define PATCH_codeADDTOOFFSET          SIG_codeADDTOOFFSET
+#define PATCH_ADDTOOFFSET(_offset_)    SIG_codeADDTOOFFSET | _offset_
+#define PATCH_GETORIGINALBYTE          0xD000
+#define PATCH_GETORIGINALBYTEADJUST    0xC000
+#define PATCH_codeSELECTOR16           SIG_codeSELECTOR16
+#define PATCH_SELECTOR16(_selectorID_) SIG_codeSELECTOR16 | _selectorID_
+#define PATCH_codeSELECTOR8            SIG_codeSELECTOR8
+#define PATCH_SELECTOR8(_selectorID_)  SIG_codeSELECTOR8 | _selectorID_
+#define PATCH_codeUINT16               SIG_codeUINT16
+#define PATCH_UINT16(_value_)          SIG_codeUINT16 | (_value_ & 0xFF), (_value_ >> 8)
+#define PATCH_codeBYTE                 SIG_codeBYTE
 
 // defines maximum scratch area for getting original bytes from unpatched script data
 #define PATCH_VALUELIMIT      4096
 
 struct SciScriptPatcherEntry {
 	bool defaultActive;
-//	bool active;
 	uint16 scriptNr;
 	const char *description;
 	int16 applyCount;
-//	uint32 magicDWord;
-//	int magicOffset;
 	const uint16 *signatureData;
 	const uint16 *patchData;
 };
-- 
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