+enum centering_type { C_AUTO = 0, C_INGAME, C_BORDERLESS, C_MANUAL };
+
+enum gpu_plugin_caps {
+ GPU_CAP_OWNS_DISPLAY = (1 << 0),
+ GPU_CAP_SUPPORTS_2X = (1 << 1),
+};
+
+// platform hooks
+extern void (*pl_plat_clear)(void);
+extern void (*pl_plat_blit)(int doffs, const void *src,
+ int w, int h, int sstride, int bgr24);
+extern void (*pl_plat_hud_print)(int x, int y, const char *str, int bpp);
+