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subhobhai943andClaude Opus 4.8
2c2e2d536e
Rework the compositor so it stops repainting the whole screen every frame, tripling the frame rate (17 -> 54 FPS at HD) and adding smooth animation. - Scene-dirty skipping (gui/gui_desktop.c): the full scene is recomposited only when something other than the bare pointer changed -- input, an open animation, or a ~10 Hz heartbeat for live content (clock, graphs). Idle and pointer-only frames skip the recomposite entirely. - Cursor save-under (gui/gui_cursor.c): the pointer is an overlay that stashes and restores the pixels beneath it, so moving the mouse never forces a full repaint -- pointer motion runs at the frame cap. - 60 FPS frame pacer: each iteration is timed against the monotonic clock and padded to a 16.666 ms budget with the new ktime_delay_us() (HPET-precise busy-wait), giving consistent pacing instead of a free-running spin. - Window open animation (gui/gui_wm.c): new windows grow from 60% to full size with a cubic ease-out over ~160 ms; gui_wm_update() drives it and reports while any window is still animating so the compositor keeps redrawing. - Default display mode set to 1280x720 (HD) -- the sweet spot where the software compositor sustains a near-60 FPS cursor with headroom for effects. Kernel: kernel/time/ktime.c gains ktime_delay_us(), a precise HPET-based delay (bounded PIT fallback) used by the pacer. Verified live (screenshotted): boots to 1280x720, logs in, tray reads ~54 FPS (green) while the pointer moves, no cursor ghosting, windows render cleanly. 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
132 lines
4.3 KiB
C
132 lines
4.3 KiB
C
// High-Resolution Smooth Mouse Cursor for SUB-OS GUI
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#include <gui/gui_cursor.h>
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#include <gui/gui_gfx.h>
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#include <gui/gui_theme.h>
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#define CURSOR_W 16
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#define CURSOR_H 24
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static int g_cur_x = 400;
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static int g_cur_y = 300;
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// 16x24 Modern Pointer Cursor (0: Transparent, 1: Black Outline, 2: White Fill, 3: Shadow)
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static const uint8_t cursor_bitmap[24][16] = {
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{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,2,2,1,0,0,0,0,0,0,0,0,0,0,0,0},
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{1,2,2,2,1,0,0,0,0,0,0,0,0,0,0,0},
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{1,2,2,2,2,1,0,0,0,0,0,0,0,0,0,0},
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{1,2,2,2,2,2,1,0,0,0,0,0,0,0,0,0},
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{1,2,2,2,2,2,2,1,0,0,0,0,0,0,0,0},
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{1,2,2,2,2,2,2,2,1,0,0,0,0,0,0,0},
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{1,2,2,2,2,2,2,2,2,1,0,0,0,0,0,0},
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{1,2,2,2,2,2,2,2,2,2,1,0,0,0,0,0},
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{1,2,2,2,2,2,2,2,2,2,2,1,0,0,0,0},
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{1,2,2,2,2,2,2,1,1,1,1,1,1,0,0,0},
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{1,2,2,2,1,2,2,1,0,0,0,0,0,0,0,0},
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{1,2,2,1,0,1,2,2,1,0,0,0,0,0,0,0},
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{1,2,1,0,0,1,2,2,1,0,0,0,0,0,0,0},
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{1,1,0,0,0,0,1,2,2,1,0,0,0,0,0,0},
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{1,0,0,0,0,0,1,2,2,1,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,1,2,2,1,0,0,0,0,0},
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{0,0,0,0,0,0,0,1,2,2,1,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
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};
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void gui_cursor_init(void) {
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g_cur_x = gui_gfx_get_width() / 2;
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g_cur_y = gui_gfx_get_height() / 2;
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}
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void gui_cursor_set_pos(int x, int y) {
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if (x < 0) x = 0;
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if (y < 0) y = 0;
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if (x >= gui_gfx_get_width()) x = gui_gfx_get_width() - 1;
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if (y >= gui_gfx_get_height()) y = gui_gfx_get_height() - 1;
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g_cur_x = x;
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g_cur_y = y;
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}
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int gui_cursor_get_x(void) { return g_cur_x; }
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int gui_cursor_get_y(void) { return g_cur_y; }
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void gui_cursor_draw(void) {
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// 1. Draw Subtle Cursor Drop Shadow
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for (int j = 0; j < CURSOR_H; j++) {
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int py = g_cur_y + j + 2;
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for (int i = 0; i < CURSOR_W; i++) {
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int px = g_cur_x + i + 2;
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uint8_t pixel = cursor_bitmap[j][i];
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if (pixel != 0) {
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gui_gfx_draw_pixel_blend(px, py, GUI_COLOR_BLACK, 100);
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}
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}
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}
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// 2. Draw Cursor Body
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for (int j = 0; j < CURSOR_H; j++) {
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int py = g_cur_y + j;
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for (int i = 0; i < CURSOR_W; i++) {
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int px = g_cur_x + i;
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uint8_t pixel = cursor_bitmap[j][i];
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if (pixel == 1) {
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gui_gfx_draw_pixel(px, py, 0xFF0F172A); // Dark Slate Outline
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} else if (pixel == 2) {
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gui_gfx_draw_pixel(px, py, GUI_COLOR_WHITE); // Pure White Interior
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}
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}
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}
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}
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// ---------------------------------------------------------------------------
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// Save-under overlay: lets the compositor move the cursor without repainting
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// the whole scene. The block under the cursor (body + drop shadow) is stashed
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// before drawing and restored on the next frame.
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// ---------------------------------------------------------------------------
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#define CUR_SAVE_W (CURSOR_W + 3)
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#define CUR_SAVE_H (CURSOR_H + 3)
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static uint32_t g_save[CUR_SAVE_H * CUR_SAVE_W];
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static int g_save_x = -1, g_save_y = -1, g_save_w = 0, g_save_h = 0;
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// Put back whatever was under the cursor last frame (erasing it).
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void gui_cursor_restore_under(void) {
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if (g_save_x < 0) return;
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uint32_t* bb = gui_gfx_get_backbuffer();
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if (!bb) { g_save_x = -1; return; }
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int W = gui_gfx_get_width();
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for (int j = 0; j < g_save_h; j++) {
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uint32_t* dst = &bb[(g_save_y + j) * W + g_save_x];
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const uint32_t* src = &g_save[j * g_save_w];
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for (int i = 0; i < g_save_w; i++) dst[i] = src[i];
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}
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g_save_x = -1;
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}
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// Stash the block under the current cursor position, then draw the cursor.
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void gui_cursor_composite(void) {
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uint32_t* bb = gui_gfx_get_backbuffer();
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if (!bb) return;
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int W = gui_gfx_get_width();
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int H = gui_gfx_get_height();
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int x = g_cur_x, y = g_cur_y;
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int w = CUR_SAVE_W, h = CUR_SAVE_H;
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if (x + w > W) w = W - x;
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if (y + h > H) h = H - y;
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if (w <= 0 || h <= 0) { g_save_x = -1; gui_cursor_draw(); return; }
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for (int j = 0; j < h; j++) {
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const uint32_t* srow = &bb[(y + j) * W + x];
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uint32_t* d = &g_save[j * w];
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for (int i = 0; i < w; i++) d[i] = srow[i];
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}
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g_save_x = x; g_save_y = y; g_save_w = w; g_save_h = h;
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gui_cursor_draw();
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}
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