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DeeJanuzandClaude Opus 5.5
8f051db083
An ungrabbed keyboard reached both sides at once: gamescope, which in VR reads every input device itself (the SteamOS build's InputStealer), typed into its focused app, and ft-screens typed into the desktop. Space in the desktop paused Spotify on the dashboard, including every space frame-voice dictated. And while the SteamVR dashboard was open, the desktop got no keys at all. Typing now follows the last click. ft-screens sees clicks on its own screens; the pointer helper reports the panel under the dot on each mouse press, so a click on any other panel sends typing to Steam. While typing goes to the desktop and the screens are showing, ft-screens tells the relay every second, and the relay grabs pass-through keyboards. A grab waits until no key is down, and the relay lets go if ft-screens stops reporting. Controller clicks on other panels aren't visible to overlay apps, so they don't move typing (noted in the README). A program that reads every keyboard for a hotkey loses a grabbed one. Repeating the keys on another input device doesn't work, since gamescope reads that too, so with SHARE_KEYS=1 the relay sends them to @frametop_keys as datagrams with the device name. It's off by default: any local process that binds that name first would get every key typed into the desktop. The docs now say gamescope reads keyboards and the headset's buttons itself; they said SteamVR passed keys on to it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
// The OpenVR side of ft-screens (vr.cpp), called from the wlroots compositor (compositor.c).
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ft_dmabuf {
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int width, height;
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uint32_t format; // DRM_FORMAT_*
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uint64_t modifier; // DRM_FORMAT_MOD_*
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int n_planes;
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uint32_t offset[4], stride[4];
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int fd[4];
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};
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enum ft_event_type { FT_MOTION, FT_BUTTON, FT_SCROLL, FT_LEAVE, FT_QUIT };
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struct ft_event {
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enum ft_event_type type;
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int screen;
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double x, y; // FT_MOTION: buffer pixels from the top left
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uint32_t button; // FT_BUTTON: linux BTN_*
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bool pressed;
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double dx, dy; // FT_SCROLL: notches (positive dy: scroll down)
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};
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bool ft_vr_init(void);
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void ft_vr_shutdown(void);
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// Modifiers SteamVR can import for a DRM format. Returns the count (at most max).
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int ft_vr_modifiers(uint32_t format, uint64_t *out, int max);
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// The screens are showing (by the visibility mode; not counting a wrist-pinned screen).
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bool ft_vr_screens_shown(void);
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// A panel for screen `index`, width in metres, placed in a row in front of the head.
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void ft_vr_screen_create(int index, double metres, int count);
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void ft_vr_screen_destroy(int index);
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// Show a client buffer (identified by `key`) on the screen's panel. False if SteamVR
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// can't import it.
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bool ft_vr_screen_present(int index, const void *key, const struct ft_dmabuf *buf);
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// A buffer is going away: drop its import.
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void ft_vr_forget(const void *key);
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// Poll panel input and SteamVR events.
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void ft_vr_poll(void (*handle)(const struct ft_event *, void *), void *data);
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// A command from the control socket (@ft_screens); writes the reply (see vr.cpp).
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void ft_vr_command(const char *command, char *reply, int reply_size);
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#ifdef __cplusplus
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}
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#endif
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