PS2 uses a -0.5 offset before sampling so texels must be rounded to half-pixel boundary
If fixes glitches on Venus and taisho-mononoke
Note: I didn't fixed yet texture render in reverse because I don't have any test for it.
UserHacks_round_sprite_offset = 1 <= enable correction of flat sprites
UserHacks_round_sprite_offset = 2 <= enable correction of all sprites (better on a couple of dump but not sure of the consequence)
I completely redo the algorithm. This time I do the projection and
interpolation of the 2 extrem vertex. This way I can compute the min/max
valid texture coordinate.
It gives stronger guarantee that texture sampling will be done inside the texture.
However it might have a performance impact, likely reasonable because it
is limited to sprite vertex.
A big thanks you to all people that provide me GS dump and test reports.
It is replacement of the previous hack (UserHacks_stretch_sprite). Don't enable both in the same time!
The idea of the hack is to move the sprite to the pixel boundary. It
avoids most of rounding issue. It also rescales verticaly the sprite (avoid horizontal line on ace combat).
I don't like this rescaling maybe we can limit it to only 1 pixels.
On my limited testcase, results are much better with any upscaling factor.
I still have a bad line in Kingdom heart. If you have issue with others
game please provide us a GS dump.
2x upscaling is pixel perfects. Bigger upscaling is better but not yet perfect
Feedbacks are welcomes (note it doesn't solve all upscaling issue, only wrong texture sampling)
For the history:
If you have a texture of [0;16[ texels and draws a primitive [0;16[
The formulae to sample last pixels of texture is
0.5 + (16*s-1)/(16*s) * 16
Native (s==1): 15.5 (good)
2x (s==2): 16 (bad, outside of the texture)
4x (s==4): 16.25 (bad, really outside of the texure))
HTB123 on our forums came up with a hack that removes the broken main character shadow in hardware rendering
in SMT Nocturne.
This should work for all GSdx recognized versions / regions of the game (tested EU and NTSC-U).
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5819 96395faa-99c1-11dd-bbfe-3dabce05a288
* use svnrev.h on linux too
* replace sprintf_s with snprintf (hope it still compile on Windows)
* init integer with 0 instead of NULL
* various int -> u32/uint32/uint on for loop index
* remove a couple of unused variable
* init few variable
* disable unused warning results
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5683 96395faa-99c1-11dd-bbfe-3dabce05a288
- changed the KH2 fix in GetTextureMinMax to my taste, should give the same results, when the used texture rect is to the left/above the clamped area, it returns [min, min+1], and [max-1, max] for right/below
- m_mem.m_clut.Read32 was returned to its original place from GetAlphaMinMax
- UserHacks_WildHack was moved up to GSState, special UV handlers are only used when this setting is active
- updated xbyak to the latest available (avx2 seems incomplete, the 256-bit promoted old instructions are missing)
- changed vtune's include path to the 2013 edition
Some other not yet commited changes from a year ago:
- WriteImageX overflow crash-fix
- moved colclamp after dithering (sw mode), it makes more sense, no visible changes noticed
- Gif_Tag::analyzeTag(), there was a conditional I didn't like, split the loop into two parts
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5649 96395faa-99c1-11dd-bbfe-3dabce05a288
- Removed the #define DISABLE_CRC_HACKS (since it's at the GUI now).
- reverted r5315 and r5319 (which prevented gs dumps to have a correct CRC).
- Restored the functionality of these revisions via simple skip of the other hack calls.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5320 96395faa-99c1-11dd-bbfe-3dabce05a288
Added interface.cpp (plugin/pcsx2 interface) and savestate.cpp to SPU2ghz, to help clean up SPU2.cpp.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@463 96395faa-99c1-11dd-bbfe-3dabce05a288
Gregory Hainaut