Pete software plugin DX9 for ePSXe and PCSX (Patreon)

A quick revision of Pete's old software emulator plugin. This one is especially useful for emulating 2D games on plugin-based emulators.

Replaces DirectDraw interface with DirectX9, but drops enhancements in the process. Those effects will probably be reimplemented later as shaders instead of CPU hogs, along with options for screen ratio and filtering.

Later changes:

• made save states functional again
• made stretch modes functional again
• added a new forced 4:3 aspect ratio
• fixed missing HUD elements
• fixed disable gpu rendering
• disabled some unused options in the configure dialog