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added the possibility to allocate aligned memory, an use it to allocate the buffer utilized in texture decoding, this will make a little easy to use aligned writes when possible in sse2/3 optimized algorithms.

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some code additions for future use ;).
please gcc user test this as i don't have opportunity to test it myself i only use reference code to.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7247 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Rodolfo Osvaldo Bogado
2011-02-25 20:35:05 +00:00
parent ac6c18a5e4
commit eef715b1cf
9 changed files with 72 additions and 9 deletions
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24
Source/Core/Common/Src/ABI.cpp
View File

@ -124,6 +124,15 @@ void XEmitter::ABI_CallFunctionCCCP(void *func, u32 param1, u32 param2,u32 param
ABI_RestoreStack(4 * 4);
}
void XEmitter::ABI_CallFunctionPPC(void *func, void *param1, void *param2,u32 param3) {
ABI_AlignStack(3 * 4);
PUSH(32, Imm32(param3));
PUSH(32, Imm32((u32)param2));
PUSH(32, Imm32((u32)param1));
CALL(func);
ABI_RestoreStack(3 * 4);
}
// Pass a register as a parameter.
void XEmitter::ABI_CallFunctionR(void *func, X64Reg reg1) {
ABI_AlignStack(1 * 4);
@ -326,6 +335,21 @@ void XEmitter::ABI_CallFunctionCCCP(void *func, u32 param1, u32 param2, u32 para
}
}
void XEmitter::ABI_CallFunctionPPC(void *func, void *param1, void *param2, u32 param3) {
MOV(64, R(ABI_PARAM1), Imm64((u64)param1));
MOV(64, R(ABI_PARAM2), Imm64((u64)param2));
MOV(32, R(ABI_PARAM3), Imm32(param3));
u64 distance = u64(func) - (u64(code) + 5);
if (distance >= 0x0000000080000000ULL
&& distance < 0xFFFFFFFF80000000ULL) {
// Far call
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
// Pass a register as a parameter.
void XEmitter::ABI_CallFunctionR(void *func, X64Reg reg1) {
if (reg1 != ABI_PARAM1)

41
Source/Core/Common/Src/MemoryUtil.cpp
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@ -74,18 +74,53 @@ void* AllocateMemoryPages(size_t size)
return ptr;
}
void FreeMemoryPages(void* ptr, size_t size)
void* AllocateAlignedMemory(size_t size,size_t alignment)
{
#ifdef _WIN32
void* ptr = _aligned_malloc(size,alignment);
#else
void* ptr = NULL;
posix_memalign(&ptr, alignment, size);
;
#endif
// printf("Mapped memory at %p (size %ld)\n", ptr,
// (unsigned long)size);
if (ptr == NULL)
PanicAlert("Failed to allocate aligned memory");
return ptr;
}
void FreeMemoryPages(void* ptr, size_t size)
{
if (ptr)
{
#ifdef _WIN32
if (!VirtualFree(ptr, 0, MEM_RELEASE))
PanicAlert("FreeMemoryPages failed!\n%s", GetLastErrorMsg());
ptr = NULL; // Is this our responsibility?
}
#else
munmap(ptr, size);
munmap(ptr, size);
#endif
}
}
void FreeAlignedMemory(void* ptr)
{
if (ptr)
{
#ifdef _WIN32
_aligned_free(ptr);
#else
free(ptr);
#endif
}
}
void WriteProtectMemory(void* ptr, size_t size, bool allowExecute)

2
Source/Core/Common/Src/MemoryUtil.h
View File

@ -26,6 +26,8 @@
void* AllocateExecutableMemory(size_t size, bool low = true);
void* AllocateMemoryPages(size_t size);
void FreeMemoryPages(void* ptr, size_t size);
void* AllocateAlignedMemory(size_t size,size_t alignment);
void FreeAlignedMemory(void* ptr);
void WriteProtectMemory(void* ptr, size_t size, bool executable = false);
void UnWriteProtectMemory(void* ptr, size_t size, bool allowExecute = false);
std::string MemUsage();

1
Source/Core/Common/Src/x64Emitter.h
View File

@ -625,6 +625,7 @@ public:
void ABI_CallFunctionCCC(void *func, u32 param1, u32 param2, u32 param3);
void ABI_CallFunctionCCP(void *func, u32 param1, u32 param2, void *param3);
void ABI_CallFunctionCCCP(void *func, u32 param1, u32 param2,u32 param3, void *param4);
void ABI_CallFunctionPPC(void *func, void *param1, void *param2,u32 param3);
void ABI_CallFunctionAC(void *func, const Gen::OpArg &arg1, u32 param2);
void ABI_CallFunctionA(void *func, const Gen::OpArg &arg1);