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Revert previous change, but increase padding/alignment in case x64 machines care

This commit is contained in:
jeblanchard 2008-06-05 04:16:08 +00:00
parent b7b9c992ec
commit b4021afc58
1 changed files with 9 additions and 9 deletions
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18
src/video.cpp
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@ -85,24 +85,24 @@ void FCEU_KillVirtualVideo(void)
int FCEU_InitVirtualVideo(void)
{
if(!XBuf) /* Some driver code may allocate XBuf externally. */
/* 256 bytes per scanline, * 240 scanline maximum, +8 for alignment,
/* 256 bytes per scanline, * 240 scanline maximum, +16 for alignment,
*/
#ifdef _USE_SHARED_MEMORY_
mapXBuf = CreateFileMapping((HANDLE)0xFFFFFFFF,NULL,PAGE_READWRITE, 0, 256 * 256 + 8, "fceu.XBuf");
mapXBuf = CreateFileMapping((HANDLE)0xFFFFFFFF,NULL,PAGE_READWRITE, 0, 256 * 256 + 16, "fceu.XBuf");
if(mapXBuf == NULL || GetLastError() == ERROR_ALREADY_EXISTS)
{
CloseHandle(mapXBuf);
mapXBuf = NULL;
XBuf = (uint8*) (FCEU_malloc(256 * 256 + 8));
XBackBuf = (uint8*) (FCEU_malloc(256 * 256 + 8));
XBuf = (uint8*) (FCEU_malloc(256 * 256 + 16));
XBackBuf = (uint8*) (FCEU_malloc(256 * 256 + 16));
}
else
{
XBuf = (uint8 *)MapViewOfFile(mapXBuf, FILE_MAP_WRITE, 0, 0, 0);
XBackBuf = (uint8*) (FCEU_malloc(256 * 256 + 8));
XBackBuf = (uint8*) (FCEU_malloc(256 * 256 + 16));
}
if (!XBuf || !XBackBuf)
@ -112,8 +112,8 @@ int FCEU_InitVirtualVideo(void)
#else
if(!(XBuf= (uint8*) (FCEU_malloc(256 * 256 + 8))) ||
!(XBackBuf= (uint8*) (FCEU_malloc(256 * 256 + 8))))
if(!(XBuf= (uint8*) (FCEU_malloc(256 * 256 + 16))) ||
!(XBackBuf= (uint8*) (FCEU_malloc(256 * 256 + 16))))
{
return 0;
}
@ -124,8 +124,8 @@ int FCEU_InitVirtualVideo(void)
if( sizeof(uint8*) == 4 )
{
uint8 m = *XBuf;
m = ( 4 - m) & 3;
unsigned m = (unsigned)XBuf;
m = ( 8 - m) & 7;
XBuf+=m;
}