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Porting of apps to userspace

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boreddevnl
2026-02-26 20:07:21 +01:00
parent c2ead0d6a7
commit 786eac0345
84 changed files with 2887 additions and 2392 deletions
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19
src/kernel/graphics.c
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@@ -4,34 +4,27 @@
#include "io.h"
static struct limine_framebuffer *g_fb = NULL;
static uint32_t g_bg_color = 0xFF696969; // Dark gray background
static uint32_t g_bg_color = 0xFF696969;
// Pattern support
#define PATTERN_SIZE 128
static uint32_t g_bg_pattern[PATTERN_SIZE * PATTERN_SIZE];
static bool g_use_pattern = false;
// Wallpaper image support
static uint32_t *g_bg_image = NULL;
static int g_bg_image_w = 0;
static int g_bg_image_h = 0;
static bool g_use_image = false;
// Dirty rectangle tracking
static DirtyRect g_dirty = {0, 0, 0, 0, false};
// Double buffering - allocate a back buffer
// Max screen size: 2048x2048 @ 32bpp = 16MB, but allocate for common sizes
// Using a simple approach: allocate max size buffer
#define MAX_FB_WIDTH 2048
#define MAX_FB_HEIGHT 2048
static uint32_t g_back_buffer[MAX_FB_WIDTH * MAX_FB_HEIGHT] __attribute__((aligned(4096)));
// Clipping state
static int g_clip_x = 0, g_clip_y = 0, g_clip_w = 0, g_clip_h = 0;
static bool g_clip_enabled = false;
// Custom Render Target
static uint32_t *g_render_target = NULL;
static int g_rt_width = 0;
static int g_rt_height = 0;
@@ -256,24 +249,17 @@ void draw_rounded_rect_filled(int x, int y, int w, int h, int radius, uint32_t c
draw_rect(x, y + radius, radius, h - 2*radius, color);
draw_rect(x + w - radius, y + radius, radius, h - 2*radius, color);
// Draw rounded corners using scanline approach (fills gaps properly)
for (int dy = 0; dy < radius; dy++) {
// For top corners: distance formula inverted (narrow at top, wide at junction)
int dx_top = isqrt(radius*radius - (radius - dy) * (radius - dy));
// For bottom corners: distance formula normal (wide at junction, narrow at bottom)
int dx_bottom = isqrt(radius*radius - dy*dy);
// Top-left corner - horizontal scanline
draw_rect(x + radius - dx_top, y + dy, dx_top, 1, color);
// Top-right corner - horizontal scanline
draw_rect(x + w - radius, y + dy, dx_top, 1, color);
// Bottom-left corner - horizontal scanline
draw_rect(x + radius - dx_bottom, y + h - radius + dy, dx_bottom, 1, color);
// Bottom-right corner - horizontal scanline
draw_rect(x + w - radius, y + h - radius + dy, dx_bottom, 1, color);
}
}
@@ -282,7 +268,6 @@ void draw_char(int x, int y, char c, uint32_t color) {
unsigned char uc = (unsigned char)c;
if (uc > 127) return;
// Fast rejection: if the character is entirely outside the clipping/dirty rect, skip it
if (g_clip_enabled && !g_render_target) {
if (x + 8 <= g_clip_x || x >= g_clip_x + g_clip_w ||
y + 8 <= g_clip_y || y >= g_clip_y + g_clip_h) {