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root/cebix/SheepShaver/src/rsrc_patches.cpp

Comparing SheepShaver/src/rsrc_patches.cpp (file contents):
Revision 1.16 by gbeauche, 2005-07-02T17:51:43Z vs.
Revision 1.17 by gbeauche, 2006-05-03T21:45:14Z

#	Line 581 | Line 581 | void CheckLoad(uint32 type, int16 id, ui
581
582
583		/*
584	+	*  Resource patches via GetNamedResource() and Get1NamedResource()
585	+	*/
586	+
587	+	void CheckLoad(uint32 type, const char *name, uint8 *p, uint32 size)
588	+	{
589	+	uint16 *p16;
590	+	uint32 base;
591	+	D(bug("vCheckLoad %c%c%c%c (%08x) name \"%*s\", data %p, size %d\n", type >> 24, (type >> 16) & 0xff, (type >> 8) & 0xff, type & 0xff, type, name[0], &name[1], p, size));
592	+
593	+	// Don't modify resources in ROM
594	+	if ((uintptr)p >= (uintptr)ROMBaseHost && (uintptr)p <= (uintptr)(ROMBaseHost + ROM_SIZE))
595	+	return;
596	+	}
597	+
598	+
599	+	/*
600		*  Native Resource Manager patches
601		*/
602
#	Line 602 | Line 618 | void check_load_invoc(uint32 type, int16
618		}
619
620		#ifdef __BEOS__
621	+	static
622	+	#else
623	+	extern "C"
624	+	#endif
625	+	void named_check_load_invoc(uint32 type, uint32 name, uint32 h)
626	+	{
627	+	if (h == 0)
628	+	return;
629	+	uint32 p = ReadMacInt32(h);
630	+	if (p == 0)
631	+	return;
632	+	uint32 size = ReadMacInt32(p - 2 * 4) & 0xffffff;
633	+
634	+	CheckLoad(type, (char *)Mac2HostAddr(name), Mac2HostAddr(p), size);
635	+	}
636	+
637	+	#ifdef __BEOS__
638		static asm void **get_resource(register uint32 type, register int16 id)
639		{
640		// Create stack frame
#	Line 766 | Line 799 | static asm void **r_get_resource(registe
799		addi    r1,r1,56+12
800		blr
801		}
802	+
803	+	static asm void **get_named_resource(register uint32 type, register uint32 name)
804	+	{
805	+	// Create stack frame
806	+	mflr    r0
807	+	stw             r0,8(r1)
808	+	stwu    r1,-(56+12)(r1)
809	+
810	+	// Save type/ID
811	+	stw             r3,56(r1)
812	+	stw             r4,56+4(r1)
813	+
814	+	// Call old routine
815	+	lwz             r0,XLM_GET_NAMED_RESOURCE
816	+	lwz             r2,XLM_RES_LIB_TOC
817	+	mtctr   r0
818	+	bctrl
819	+	lwz             r2,XLM_TOC              // Get TOC
820	+	stw             r3,56+8(r1)             // Save handle
821	+
822	+	// Call CheckLoad
823	+	lwz             r3,56(r1)
824	+	lwz             r4,56+4(r1)
825	+	lwz             r5,56+8(r1)
826	+	bl              named_check_load_invoc
827	+	lwz             r3,56+8(r1)             // Restore handle
828	+
829	+	// Return to caller
830	+	lwz             r0,56+12+8(r1)
831	+	mtlr    r0
832	+	addi    r1,r1,56+12
833	+	blr
834	+	}
835	+
836	+	static asm void **get_1_named_resource(register uint32 type, register uint32 name)
837	+	{
838	+	// Create stack frame
839	+	mflr    r0
840	+	stw             r0,8(r1)
841	+	stwu    r1,-(56+12)(r1)
842	+
843	+	// Save type/ID
844	+	stw             r3,56(r1)
845	+	stw             r4,56+4(r1)
846	+
847	+	// Call old routine
848	+	lwz             r0,XLM_GET_1_NAMED_RESOURCE
849	+	lwz             r2,XLM_RES_LIB_TOC
850	+	mtctr   r0
851	+	bctrl
852	+	lwz             r2,XLM_TOC              // Get TOC
853	+	stw             r3,56+8(r1)             // Save handle
854	+
855	+	// Call CheckLoad
856	+	lwz             r3,56(r1)
857	+	lwz             r4,56+4(r1)
858	+	lwz             r5,56+8(r1)
859	+	bl              named_check_load_invoc
860	+	lwz             r3,56+8(r1)             // Restore handle
861	+
862	+	// Return to caller
863	+	lwz             r0,56+12+8(r1)
864	+	mtlr    r0
865	+	addi    r1,r1,56+12
866	+	blr
867	+	}
868		#else
869		// Routines in asm_linux.S
870		extern "C" void get_resource(void);
#	Line 773 | Line 872 | extern "C" void get_1_resource(void);
872		extern "C" void get_ind_resource(void);
873		extern "C" void get_1_ind_resource(void);
874		extern "C" void r_get_resource(void);
875	+	extern "C" void get_named_resource(void);
876	+	extern "C" void get_1_named_resource(void);
877		#endif
878
879		void PatchNativeResourceManager(void)
#	Line 866 | Line 967 | void PatchNativeResourceManager(void)
967		WriteMacInt32(tvec, (uint32)r_get_resource);
968		#endif
969		#endif
970	+
971	+	// Patch native GetNamedResource()
972	+	upp = ReadMacInt32(0x1484);
973	+	tvec = ReadMacInt32(upp + 5 * 4);
974	+	D(bug(" GetNamedResource() entry %08x, TOC %08x\n", ReadMacInt32(tvec), ReadMacInt32(tvec + 4)));
975	+	WriteMacInt32(XLM_GET_NAMED_RESOURCE, ReadMacInt32(tvec));
976	+	#if EMULATED_PPC
977	+	WriteMacInt32(tvec, NativeFunction(NATIVE_GET_NAMED_RESOURCE));
978	+	#else
979	+	#ifdef __BEOS__
980	+	tvec2 = (uint32 *)get_named_resource;
981	+	WriteMacInt32(tvec, tvec2[0]);
982	+	WriteMacInt32(tvec + 4, tvec2[1]);
983	+	#else
984	+	WriteMacInt32(tvec, (uint32)get_named_resource);
985	+	#endif
986	+	#endif
987	+
988	+	// Patch native Get1NamedResource()
989	+	upp = ReadMacInt32(0x0e80);
990	+	tvec = ReadMacInt32(upp + 5 * 4);
991	+	D(bug(" Get1NamedResource() entry %08x, TOC %08x\n", ReadMacInt32(tvec), ReadMacInt32(tvec + 4)));
992	+	WriteMacInt32(XLM_GET_1_NAMED_RESOURCE, ReadMacInt32(tvec));
993	+	#if EMULATED_PPC
994	+	WriteMacInt32(tvec, NativeFunction(NATIVE_GET_1_NAMED_RESOURCE));
995	+	#else
996	+	#ifdef __BEOS__
997	+	tvec2 = (uint32 *)get_1_named_resource;
998	+	WriteMacInt32(tvec, tvec2[0]);
999	+	WriteMacInt32(tvec + 4, tvec2[1]);
1000	+	#else
1001	+	WriteMacInt32(tvec, (uint32)get_1_named_resource);
1002	+	#endif
1003	+	#endif
1004		}

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