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subhobhai943andClaude Opus 4.8
4ecf119377
GUI polish / HD: - Default display mode raised to 1920x1080 (video=1920x1080); make run/vnc use vgamem_mb=64 and -m 512M. The growable heap absorbs the larger backbuffer, shadow and wallpaper (observed: one 16 MB growth to a 48 MB heap). - Wallpaper: three-stop vertical gradient, a soft concentric-frame edge vignette for depth, a finer faint grid, and a centred brand mark. - Window chrome: brighter/saturated titlebar gradient when focused, an accent underline on the active window, and larger/softer drop shadows. - Default session windows are placed and sized for the HD work area. - Live FPS pill in the taskbar tray (green/amber/red by rate); tray widened so FPS + CPU trace + memory badge + clock no longer overlap. Kernel: - kernel/time/ktime.c + include/kernel/ktime.h (new): a unified monotonic high-resolution clock that prefers the HPET (nanosecond) and falls back to the 100 Hz PIT tick. Wired ktime_init() into boot; drives the compositor's FPS sampling. New `ktime` LazyBox applet reports the source and uptime. Verified live (screenshotted): boots to 1920x1080, KTIME reports "source: HPET, nanosecond resolution", the polished desktop renders with the active-window accent and vignette, and the tray shows a live FPS reading. Clean build on x86_64/aarch64/armv8i; 0 panics / 0 OOM. Co-Authored-By: Claude Opus 4.8 <[email protected]> Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
// Unified monotonic high-resolution clock for SUB-OS.
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//
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// When the HPET is available it provides true nanosecond timing; otherwise the
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// clock degrades gracefully to the 100 Hz kernel timer tick (10 ms resolution).
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// Either way the epoch is the moment ktime_init() ran.
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#include <kernel/ktime.h>
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#include <drivers/hpet.h>
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#include <arch/arch.h>
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#include <kernel/printk.h>
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#define TICK_HZ 100ULL
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#define NS_PER_TICK (1000000000ULL / TICK_HZ) // 10,000,000 ns at 100 Hz
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static bool g_use_hpet = false;
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static uint64_t g_base_tick = 0;
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void ktime_init(void) {
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g_use_hpet = hpet_available();
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g_base_tick = pit_get_ticks();
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printk(ANSI_BRIGHT_GREEN "KTIME: " ANSI_RESET
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"Monotonic clock online (source: %s%s)\n",
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g_use_hpet ? "HPET" : "PIT 100 Hz",
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g_use_hpet ? ", nanosecond resolution" : "");
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}
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uint64_t ktime_ns(void) {
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if (g_use_hpet) {
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return hpet_get_ns();
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}
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uint64_t ticks = pit_get_ticks() - g_base_tick;
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return ticks * NS_PER_TICK;
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}
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uint64_t ktime_us(void) { return ktime_ns() / 1000ULL; }
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uint64_t ktime_ms(void) { return ktime_ns() / 1000000ULL; }
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const char* ktime_source(void) { return g_use_hpet ? "HPET" : "PIT"; }
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bool ktime_is_highres(void) { return g_use_hpet; }
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