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Attempt to calculate actual refresh rate (i.e. a CPU-GPU synced Mhz), no real success. Anybody have any ideas?

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Is there no indication from the game when the screen refresh should occur? No, not what I could find, we currently calculate the refresh rate and m_VBeamPos from the CPU ticks progress. That works perfectly if the CPU and GPU is perfectly synced as in the single core and no-idle skipping mode. So I guess it's possible that the game doesn't indicate when the screen should be refreshed, but rather that the hardware calculate that from the CPU ticks progress. That leaves us with a problem in the dual core and idle skipping modes to calculate a CPU-GPU synced CPU ticks progress.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3447 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
2009-06-15 04:30:02 +00:00
parent 3295ec38eb
commit 5c04af50a4
12 changed files with 242 additions and 78 deletions
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3
Source/Core/VideoCommon/Src/BPStructs.cpp
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@ -160,7 +160,8 @@ void BPWritten(const Bypass& bp)
PixelShaderManager::SetDestAlpha(bpmem.dstalpha);
break;
}
case BPMEM_SETDRAWDONE: // This is called when the game is done drawing (eg: like in DX: Begin(); Draw(); End();)
// This is called when the game is done drawing the new frame (eg: like in DX: Begin(); Draw(); End();)
case BPMEM_SETDRAWDONE:
switch (bp.newvalue & 0xFF)
{
case 0x02: