gametitle=Vampire: Darkstalkers Collection (NTSC-J) (SLPM-65998)

[No Bilinear Filter + UV Fix - In-game]
author=Immersion95
description=Disables the game's final bilinear filter and fixes the final blit UVs during gameplay only, preventing the vertical and horizontal seams that would otherwise split the image into four quads. Best used at native/1x resolution.

// Always-on option default: must stay outside the In-game joker because it fixes the FILTER option before the Display menu is opened
patch=1,EE,20147230,extended,ACA00264 // Display option init: FILTER default OFF instead of ON; fixes bilinear being active until Display menu is opened

// In-game / CPS-2 emulator active: [201C2600] == 0001 -> apply no bilinear + UV fix
patch=1,EE,E0050001,extended,001C2600
patch=1,EE,20147770,extended,240B0000 // Final blit: disables forced bilinear filtering
patch=1,EE,201477D4,extended,24840000 // Final blit: aligns U end/right texture edge
patch=1,EE,201477F0,extended,24840000 // Final blit: aligns V end/bottom texture edge
patch=1,EE,20147874,extended,34020000 // Final blit: aligns U start/left texture edge
patch=1,EE,2014787C,extended,34420000 // Final blit: aligns V start/top texture edge

// Main menu / frontend active: [201C2600] == 0000 -> restore original no-bilinear/UV values
patch=1,EE,E0050000,extended,001C2600
patch=1,EE,20147770,extended,240B0060 // Final blit: restores original forced bilinear filtering value
patch=1,EE,201477D4,extended,2484FFF8 // Final blit: restores original U end/right texture edge offset
patch=1,EE,201477F0,extended,2484FFF8 // Final blit: restores original V end/bottom texture edge offset
patch=1,EE,20147874,extended,3C020008 // Final blit: restores original U start/left texture edge offset, upper immediate
patch=1,EE,2014787C,extended,34420008 // Final blit: restores original V start/top texture edge offset, lower immediate

[CPS-2 384x448 Display Fix - In-game]
author=Immersion95
description=Sets CPS-2 gameplay to a pixel-perfect 384x448 output, matching the doubled 384x224 arcade layout. Best used at native/1x resolution.

// In-game / CPS-2 emulator active: [201C2600] == 0001 -> apply display fix
patch=1,EE,E0060001,extended,001C2600
patch=1,EE,20147768,extended,240517F8 // Final blit: sets the final quad right edge to 383.5 pixels for a clean 384-wide output
patch=1,EE,201479C8,extended,24030006 // GS DISPLAY: normal/interlace path mode value set for 384-wide output
patch=1,EE,20147AE0,extended,24050A7F // GS DISPLAY: normal/interlace path, DW=0x0A7F with MAGH6 -> 384
patch=1,EE,20147C04,extended,24050A7F // GS DISPLAY: alternate path, DW=0x0A7F with MAGH6 -> 384
patch=1,EE,20147CB4,extended,2405047F // GS DISPLAY: progressive/special path, DW=0x047F with MAGH2 -> 384
patch=1,EE,20147CC4,extended,3C050100 // GS DISPLAY: progressive/special path, fixed MAGH bits = 2 << 23 = 0x01000000

// Main menu / frontend active: [201C2600] == 0000 -> restore original menu/display values
patch=1,EE,E0060000,extended,001C2600
patch=1,EE,20147768,extended,00052900 // Final blit: restores original computed right edge, undoing the 383.5px / clean 384-wide output override
patch=1,EE,201479C8,extended,24030003 // GS DISPLAY: restores original normal/interlace path mode value
patch=1,EE,20147AE0,extended,240509FF // GS DISPLAY: restores original normal DISPLAY path width value
patch=1,EE,20147C04,extended,240509FF // GS DISPLAY: restores original alternate DISPLAY path width value
patch=1,EE,20147CB4,extended,240504FF // GS DISPLAY: restores original progressive/special DISPLAY width value
patch=1,EE,20147CC4,extended,3C050080 // GS DISPLAY: restores original progressive/special fixed MAGH bits = 1 << 23 = 0x00800000