Add readSize > halfBufferSize for sceAtracSetHalfwayBufferAndGetID
Merge pull request #1259 from raven02/patch-9

Add readSize > halfBufferSize for sceAtracSetHalfwayBufferAndGetID
Don't decimate FBOs if none were used.

Not sure why this is happening, but fixes #1260.
Don't go decimate happy on FBOs if a game reuses.

Some games, e.g. games that render at < 60fps, reuse FBOs.
This was making all three pointers the same, making us more likely
to decimate things when we ought not to.
Merge pull request #1261 from unknownbrackets/fbo-flicker

Fix FBO decimation in a cleaner way
Fix incorrect GPU timing with signal jumps.
Merge pull request #1262 from unknownbrackets/dlist-cycles

Fix incorrect GPU timing with signal jumps
Merge remote-tracking branch 'upstream/master' into fps2

Conflicts:
	native
Merge branch 'fps2' of https://github.com/leejuiping/ppsspp into fps2