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Merge pull request #394 from LukeUsher/AvGetSavedDataAddress 

Implement AvGetSavedDataAddress & AvSetSavedDataAddress
This commit is contained in:
Luke Usher 2017-04-24 07:12:48 +01:00 committed by GitHub
parent 0742b7d206 e974f1d04b
commit 60c7c9ca22
1 changed files with 8 additions and 42 deletions
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50
src/CxbxKrnl/EmuKrnlAv.cpp
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@ -74,6 +74,12 @@ ULONG AvQueryAvCapabilities()
return AV_PACK_HDTV | AV_STANDARD_NTSC_M | AV_FLAGS_60Hz;
}
// Xbox code will set this address via AvSetSavedDataAddress
// TODO: This value should be persisted between reboots
// Xbox code sets this to the contiguous memory region
// so data is already persisted.
PVOID g_AvSavedDataAddress = NULL;
// ******************************************************************
// * 0x0001 - AvGetSavedDataAddress()
// ******************************************************************
@ -81,47 +87,7 @@ XBSYSAPI EXPORTNUM(1) xboxkrnl::PVOID NTAPI xboxkrnl::AvGetSavedDataAddress(void
{
LOG_FUNC();
__asm int 3;
// Allocate a buffer the size of the screen buffer and return that.
// TODO: Fill this buffer with the contents of the front buffer.
// TODO: This isn't always the size we need...
if (g_pPersistedData)
{
g_MemoryManager.Free(g_pPersistedData);
g_pPersistedData = NULL;
}
g_pPersistedData = g_MemoryManager.Allocate(640 * 480 * 4);
#if 0
// Get a copy of the front buffer
IDirect3DSurface8* pFrontBuffer = NULL;
if (SUCCEEDED(g_pD3DDevice8->GetFrontBuffer(pFrontBuffer)))
{
D3DLOCKED_RECT LockedRect;
pFrontBuffer->LockRect(0, NULL, &LockedRect);
CopyMemory(g_pPersistedData, LockRect.pBits, 640 * 480 * 4);
pFrontBuffer->UnlockRect();
}
#endif
// TODO: We might want to return something sometime...
/*if( !g_pPersistedData )
{
FILE* fp = fopen( "PersistedSurface.bin", "rb" );
fseek( fp, 0, SEEK_END );
long size = ftell( fp );
g_pPersistedData = g_MemoryManager.Allocate( size );
fread( g_pPersistedData, size, 1, fp );
fclose(fp);
}*/
RETURN (NULL); //g_pPersistedData;
RETURN(g_AvSavedDataAddress);
}
// ******************************************************************
@ -244,5 +210,5 @@ XBSYSAPI EXPORTNUM(4) xboxkrnl::VOID NTAPI xboxkrnl::AvSetSavedDataAddress
LOG_FUNC_ARG(Address)
LOG_FUNC_END;
LOG_UNIMPLEMENTED();
g_AvSavedDataAddress = Address;
}