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I've observed that "FIFO is overflown by GatherPipe" is not real overflow.

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Really that happens because the fifo.CPReadWriteDistance is negative.
Example: CPReadWriteDistance: -864 CPEnd: 10092672 fifo.CPBase: 9568416
In SMG this is because  PI_FIFO_RESET is writing and after fifo.CPReadWriteDistance will be setted to 0.
To Prevent that, I've Implemented AbortFrame function in the CommmandProcessor. It should fix overflown because of that. 
Note: There is other issue (Issue 2846) where the fifo.CPReadWriteDistance is negative too but the effect is different.
I'm working to solve this.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6083 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marcos Vitali
2010-08-10 07:25:35 +00:00
parent 2b45e87b3e
commit 3b7a6ce336
12 changed files with 59 additions and 2 deletions
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6
Source/Core/Common/Src/PluginVideo.cpp
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@ -39,6 +39,7 @@ PluginVideo::PluginVideo(const char *_Filename) : CPlugin(_Filename), validVideo
Video_GatherPipeBursted = 0;
Video_WaitForFrameFinish = 0;
Video_IsFifoBusy = 0;
Video_AbortFrame = 0;
Video_Prepare = reinterpret_cast<TVideo_Prepare>
(LoadSymbol("Video_Prepare"));
@ -74,6 +75,8 @@ PluginVideo::PluginVideo(const char *_Filename) : CPlugin(_Filename), validVideo
(LoadSymbol("Video_WaitForFrameFinish"));
Video_IsFifoBusy = reinterpret_cast<TVideo_IsFifoBusy>
(LoadSymbol("Video_IsFifoBusy"));
Video_AbortFrame = reinterpret_cast<TVideo_AbortFrame>
(LoadSymbol("Video_AbortFrame"));
if ((Video_Prepare != 0) &&
(Video_BeginField != 0) &&
(Video_EndField != 0) &&
@ -91,7 +94,8 @@ PluginVideo::PluginVideo(const char *_Filename) : CPlugin(_Filename), validVideo
(Video_PixelEngineWrite32 != 0) &&
(Video_GatherPipeBursted != 0) &&
(Video_WaitForFrameFinish != 0) &&
(Video_IsFifoBusy != 0))
(Video_IsFifoBusy != 0) &&
(Video_AbortFrame != 0))
validVideo = true;
}