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.ttf fonts (beta)

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boreddevnl
2026-03-03 20:34:50 +01:00
parent 8b3ca448ed
commit 3c7d36a50f
42 changed files with 5841 additions and 78 deletions
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72
src/kernel/syscall.c
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@@ -16,6 +16,8 @@
#include "network.h"
#include "icmp.h"
#include "cmd.h"
#include "font_manager.h"
#include "graphics.h"
// Read MSR
static inline uint64_t rdmsr(uint32_t msr) {
@@ -348,6 +350,41 @@ static uint64_t syscall_handler_inner(uint64_t syscall_num, uint64_t arg1, uint6
draw_string(win->x + ux, win->y + uy, kernel_str, color);
}
asm volatile("push %0; popfq" : : "r"(rflags));
}
} else if (cmd == 10) { // GUI_CMD_DRAW_STRING_BITMAP
Window *win = (Window *)arg2;
uint64_t coords = arg3;
int ux = coords & 0xFFFFFFFF;
int uy = coords >> 32;
const char *user_str = (const char *)arg4;
uint32_t color = (uint32_t)arg5;
if (win && user_str) {
extern void draw_string_bitmap(int x, int y, const char *str, uint32_t color);
extern void graphics_set_render_target(uint32_t *buffer, int w, int h);
// Copy string safely to kernel stack buffer
char kernel_str[256];
int i = 0;
while (i < 255 && user_str[i]) {
kernel_str[i] = user_str[i];
i++;
}
kernel_str[i] = 0;
uint64_t rflags;
asm volatile("pushfq; pop %0; cli" : "=r"(rflags));
if (win->pixels) {
if (ux >= -100 && ux < win->w && uy >= -100 && uy < (win->h - 20)) {
graphics_set_render_target(win->pixels, win->w, win->h - 20);
draw_string_bitmap(ux, uy, kernel_str, color);
graphics_set_render_target(NULL, 0, 0);
}
} else {
draw_string_bitmap(win->x + ux, win->y + uy, kernel_str, color);
}
asm volatile("push %0; popfq" : : "r"(rflags));
}
} else if (cmd == GUI_CMD_DRAW_IMAGE) {
@@ -409,6 +446,27 @@ static uint64_t syscall_handler_inner(uint64_t syscall_num, uint64_t arg1, uint6
return 1;
}
return 0;
} else if (cmd == GUI_CMD_GET_STRING_WIDTH) {
const char *user_str = (const char *)arg2;
if (!user_str) return 0;
char kernel_str[256];
int i = 0;
while (i < 255 && user_str[i]) {
kernel_str[i] = user_str[i];
i++;
}
kernel_str[i] = 0;
ttf_font_t *font = graphics_get_current_ttf();
if (font) {
return (uint64_t)font_manager_get_string_width(font, kernel_str);
} else {
return (uint64_t)i * 8; // Fallback bitmap width
}
} else if (cmd == GUI_CMD_GET_FONT_HEIGHT) {
extern int graphics_get_font_height(void);
return (uint64_t)graphics_get_font_height();
}
} else if (syscall_num == SYS_FS) {
int cmd = (int)arg1;
@@ -548,14 +606,12 @@ static uint64_t syscall_handler_inner(uint64_t syscall_num, uint64_t arg1, uint6
} else if (cmd == 2) { // SYSTEM_CMD_SET_BG_PATTERN
uint32_t *user_pat = (uint32_t *)arg2;
if (!user_pat) {
extern void graphics_set_bg_pattern(uint32_t *pattern);
graphics_set_bg_pattern(NULL);
} else {
static uint32_t global_bg_pattern[128*128];
for (int i=0; i<128*128; i++) {
global_bg_pattern[i] = user_pat[i];
}
extern void graphics_set_bg_pattern(uint32_t *pattern);
graphics_set_bg_pattern(global_bg_pattern);
}
extern void wm_refresh(void);
@@ -778,6 +834,18 @@ static uint64_t syscall_handler_inner(uint64_t syscall_num, uint64_t arg1, uint6
extern void network_force_unlock(void);
network_force_unlock();
return 0;
} else if (cmd == 40) { // SYSTEM_CMD_SET_FONT
const char *user_path = (const char *)arg2;
if (!user_path) return -1;
// Copy font path from userland
char path[128];
int i;
for (i = 0; i < 127 && user_path[i]; i++) {
path[i] = user_path[i];
}
path[i] = 0;
graphics_set_font(path);
return 0;
}
return -1;
}