PlayStation Portable

PlayStation Portable (PPSSPP)

Visual Upgrades

The PSP renders natively at 480x272. PPSSPP's OpenGL renderer supports substantial upscaling:

Option	Native	Upscaled (suggested)
ppsspp_internal_resolution	480x272	1920x1088 (4x) or 2880x1632 (6x)
ppsspp_texture_filtering	Auto	Auto max quality
ppsspp_texture_anisotropic_filtering	16x	16x
ppsspp_texture_scaling_type	xbrz	xbrz
ppsspp_texture_scaling_level	disabled	3x or 4x (AI texture upscaling)
ppsspp_texture_deposterize	disabled	enabled (smooths color banding)
ppsspp_mulitsample_level	Disabled	x4

All options take effect immediately without restarting the game. Texture scaling (xbrz 3x/4x) is the most GPU-intensive option — lower it first if performance drops.

Teardown

The OpenGL context_destroy callback is skipped on window close. Calling it crashes the libretro PPSSPP core — its GPU thread is still running cleanup and the callback interferes with that process.

The cleanup sequence:

1. retro_unload_game — PPSSPP's GPU thread self-cleans after this
2. Skip context_destroy
3. Extended quarantine period (3–4 seconds) before wglDeleteContext — PPSSPP's GPU thread takes longer to fully exit than other cores