feat: panic, printf, logo and something i dont remember

.gitignore

@@ -1,3 +1,3 @@
 .cache
 build
-kirby.h
+.venv

bootloader/src/main.c

@@ -58,13 +58,12 @@ int main()
 
     status = gBS->AllocatePool(EfiLoaderData, sizeof(Bootinfo), (void**)&boot_info);
 
-    boot_info->base = (uintn_t*)gop->Mode->FrameBufferBase;
-    boot_info->base_size = gop->Mode->FrameBufferSize;
-    boot_info->height = gop->Mode->Information->VerticalResolution;
-    boot_info->width = gop->Mode->Information->HorizontalResolution;
-    boot_info->pitch = gop->Mode->Information->PixelsPerScanLine;
+    boot_info->framebuffer.base = (uintn_t*)gop->Mode->FrameBufferBase;
+    boot_info->framebuffer.base_size = gop->Mode->FrameBufferSize;
+    boot_info->framebuffer.height = gop->Mode->Information->VerticalResolution;
+    boot_info->framebuffer.width = gop->Mode->Information->HorizontalResolution;
+    boot_info->framebuffer.pitch = gop->Mode->Information->PixelsPerScanLine;
 
-    // woah letsgoo
     uintn_t map_size = 0;
     efi_memory_descriptor_t *map = NULL;
     uintn_t map_key;
@@ -75,17 +74,30 @@ int main()
 
     gBS->GetMemoryMap(&map_size, NULL, &map_key, &desc_size, &desc_version);
     map_size += 4096;
-    gBS->AllocatePool(EfiLoaderData, map_size, (void**)&map);
-    status = gBS->ExitBootServices(IM, map_key);
+    // woah letsgoo
+    status = gBS->AllocatePool(EfiLoaderData, map_size, (void**)&map);
+    if (EFI_ERROR(status)) {
+        ST->ConOut->OutputString(ST->ConOut, L"Failed to allocate pool");
+    }
+
+    do {
+        status = gBS->GetMemoryMap(&map_size, map, &map_key, &desc_size, &desc_version);
+        if (EFI_ERROR(status)) {
+            break;
+        }
+        
+        boot_info->mem.descriptor_size = desc_size;
+        boot_info->mem.descriptor_version = desc_version;
+        boot_info->mem.map_size = map_size;
+        boot_info->mem.map_key = map_key;
+        boot_info->mem.map = map;
 
-    while (EFI_ERROR(status)) {
-        gBS->GetMemoryMap(&map_size, map, &map_key, &desc_size, &desc_version);
         status = gBS->ExitBootServices(IM, map_key);
         if (status == EFI_SUCCESS) {
             break; // FUCK OFF;
         }
         map_size += 2 * desc_size; 
-    }
+    } while (EFI_ERROR(status));
 
     typedef void (__attribute__((sysv_abi)) *kentry)(Bootinfo*);
     kentry kmain = (kentry)kernel_addr;

common/bootinfo.h

@@ -9,4 +9,17 @@ typedef struct {
     bi_u64 width;
     bi_u64 height;
     bi_u64 pitch;
+} BI_Framebuffer;
+
+typedef struct {
+    void *map;             
+    bi_u64 map_size;       
+    bi_u64 descriptor_size;
+    bi_u32 map_key;
+    bi_u32 descriptor_version;
+} BI_MemoryMap;
+
+typedef struct {
+    BI_Framebuffer framebuffer;
+    BI_MemoryMap mem;
 } Bootinfo;

kernel/CMakeLists.txt

@@ -21,6 +21,7 @@ add_executable(kernel
     src/modules/memory.c
     src/modules/serial.c
     src/modules/console.c
+    src/modules/panic.c
     data/font8x8_basic.c
 )
 

kernel/include/console.h

@@ -6,6 +6,8 @@
 void console_init(SG_Context *ctx);
 void console_clear(u32 color);
 void console_set_color(u32 color);
+void console_set_cursor_pos(SG_Point *p);
 void kprint(const char *str);
+void kprintf(const char *fmt, ...);
 
 #endif

kernel/include/math.h

@@ -0,0 +1,9 @@
+#include "types.h"
+
+static inline int abs(int n) {
+    return (n < 0) ? -n : n;
+}
+
+static inline i64 i64abs(i64 n) {
+    return (n < 0) ? -n : n;
+}

kernel/include/panic.h

@@ -0,0 +1,3 @@
+#pragma once
+
+__attribute__((noreturn)) void panic(const char *msg);

kernel/linker.ld

@@ -2,12 +2,10 @@ ENTRY(kmain)
 
 SECTIONS
 {
-    /* Смещаем точку сборки на 1МБ (как ты и грузишь) */
     . = 0x100000;
 
-    /* Сначала идет КОД. Это самое важное. */
     .text : {
-        *(.text.entry) /* Если будет ассемблерный трамплин */
+        *(.text.entry)
         *(.text*)
     }
 
@@ -24,12 +22,11 @@ SECTIONS
         *(COMMON)
     }
 
-    /* ВЫРЕЗАЕМ ВЕСЬ МУСОР LINUX/GNU */
     /DISCARD/ : {
         *(.note*)
         *(.comment*)
         *(.eh_frame*)
-        *(.interp)     /* <--- Вот эта гадость содержала путь к ld-linux */
+        *(.interp)  
         *(.dynsym)
         *(.dynstr)
     }

kernel/src/kmain.c

@@ -4,22 +4,27 @@
 
 #include "shitgui.h"
 #include "serial.h"
+#include "panic.h" // IWYU pragma: keep
+#include "../data/logo.h"
 
 void kmain(Bootinfo* info) {
-    u32 *fb = (u32*)info->base;
+    u32 *fb = (u32*)info->framebuffer.base;
     if (!fb) return;
 
     SG_Context sg_ctx = {0};
     sg_ctx.fb = fb;
-    sg_ctx.height = info->height;
-    sg_ctx.width = info->width;
-    sg_ctx.pitch = info->pitch;
+    sg_ctx.height = info->framebuffer.height;
+    sg_ctx.width = info->framebuffer.width;
+    sg_ctx.pitch = info->framebuffer.pitch;
 
     serial_init();
     console_init(&sg_ctx);
     console_clear(0xFFFFFF);
     console_set_color(0x000000);
-    kprint("Welcome to termOS!!!");
+    SG_Point logo_point = {sg_ctx.width-100, 100};
+    sg_put_img(&sg_ctx, &logo_point, &logo_img);
+    kprint("Welcome to termOS!!!\n");
+    kprintf("MemoryMap located at %x; \nMemory map size is %d", (u64)info->mem.map, (u64)info->mem.map_size);
 
     while (1) { __asm__("hlt"); }
 }

kernel/src/modules/console.c

@@ -2,6 +2,10 @@
 #include "serial.h"
 #include "font.h"
 #include "shitgui.h"
+#include "math.h"
+#include "types.h"
+#include <stdarg.h>
+
 
 static SG_Context *ctx_ptr = nullptr;
 static SG_Point s_cursor_pos = {0};
@@ -28,6 +32,12 @@ void console_clear(u32 color) {
     s_cursor_pos.y = 0;
 }
 
+void console_set_cursor_pos(SG_Point *p) {
+    if (!p) return;
+    s_cursor_pos.x = p->x;
+    s_cursor_pos.y = p->y;
+}
+
 static void console_putc(char c) {
     serial_writec(c);
     if (!ctx_ptr) return;
@@ -48,7 +58,91 @@ static void console_putc(char c) {
 
 
 void kprint(const char *str) {
-    for (int i = 0; str[i] != '\0'; i++) console_putc(str[i]);
+    for (i32 i = 0; str[i] != '\0'; i++) console_putc(str[i]);
+}
+
+static void print_dec(const i64 n) {
+    if (n < 0) console_putc('-');
+    u64 u = abs(n);
+    char buffer[32];
+    i32 i = 0;
+
+    do {
+        buffer[i] = (u % 10) + '0';
+        u /= 10;
+        i++;
+    } while (u > 0);
+
+    while (--i >= 0) {
+        console_putc(buffer[i]);
+    }
+}
+
+static void print_hex(u64 u) {
+    console_putc('0');
+    console_putc('x');
+
+    if (u == 0) {
+        console_putc('0');
+        return;
+    }
+
+    char buffer[16]; 
+    i32 i = 0;
+
+    while (u > 0) {
+        i32 digit = u % 16;
+        if (digit < 10) { buffer[i] = digit + '0'; }
+        else { buffer[i] = digit - 10 + 'a'; }
+        u /= 16;
+        i++;
+    }
+
+    while (--i >= 0) {
+        console_putc(buffer[i]);
+    }
+}
+
+void kprintf(const char *fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    for (i32 i = 0; fmt[i] != '\0'; i++) {
+        if (fmt[i] == '%') {
+            i++;
+            switch (fmt[i]) {
+                case 's': {
+                    const char *str = va_arg(args, const char*);
+                    if (!str) str = "undefined";
+                    kprint(str);
+                    break;
+                }
+                case 'c': {
+                    char c = (char)va_arg(args, int);
+                    console_putc(c);
+                    break;
+                }
+                case 'd': {
+                    i32 num = va_arg(args, i32);
+                    print_dec(num);
+                    break;
+                }
+                case 'x': {
+                    u64 num = va_arg(args, u64);
+                    print_hex(num);
+                    break;    
+                }
+                default: {
+                    console_putc(fmt[i]);
+                    break;
+                }
+            }
+        } else {
+            console_putc(fmt[i]);
+        }
+    }
+
+    va_end(args);
 }
 
 void console_set_color(u32 color) {

kernel/src/modules/panic.c

@@ -0,0 +1,24 @@
+#include "panic.h"
+#include "console.h"
+#include "shitgui.h"
+
+static void hlt_loop() {
+    while (1) { 
+        __asm__ volatile ("cli; hlt"); 
+    }
+}
+
+
+__attribute__((noreturn)) void panic(const char *msg) {
+    console_clear(0xFF0000);
+    console_set_color(0xFFFFFF);
+
+    kprintf("\n\n");
+    kprintf("   KERNEL PANIC    \n");
+    kprintf("-------------------\n");
+    kprintf("   Reason: %s\n", msg);
+    kprintf("-------------------\n");
+    kprintf("   System halted.\n");
+
+    hlt_loop();
+}   

kernel/src/modules/shitgui.c

@@ -1,5 +1,6 @@
 #include "shitgui.h"
 
+#define SHITGUI_TRANSPARENCY_KEY 0xFF00FF
 
 void sg_put_img(SG_Context *ctx, SG_Point *p, SG_Image *img) {
     if (!ctx->fb || !img) return;
@@ -17,7 +18,8 @@ void sg_put_img(SG_Context *ctx, SG_Point *p, SG_Image *img) {
         volatile u32 *dest_ptr = &ctx->fb[(start_y + y) * ctx->pitch + start_x];
         u32 *src_ptr = &img->buffer[y * img->width];
         for (u32 x = 0; x < draw_w; x++) {
-            dest_ptr[x] = src_ptr[x];
+            u32 color = src_ptr[x];
+            if (color != SHITGUI_TRANSPARENCY_KEY) dest_ptr[x] = color;
         }
     }
 }

tools/img2c/img2c.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+import sys
+from PIL import Image
+
+# НАШ МАГИЧЕСКИЙ ЦВЕТ (ЯДОВИТО-РОЗОВЫЙ)
+# Выбран, потому что его редко используют в реальных картинках.
+TRANSPARENCY_KEY = 0xFF00FF 
+
+def main():
+    if len(sys.argv) < 3:
+        print(f"Usage: {sys.argv[0]} <input_image> <output_header_name>")
+        sys.exit(1)
+
+    input_path = sys.argv[1]
+    output_name = sys.argv[2]
+    
+    try:
+        # Конвертируем в RGBA, чтобы получить доступ к альфа-каналу
+        img = Image.open(input_path).convert("RGBA")
+    except Exception as e:
+        print(f"Error opening image: {e}")
+        sys.exit(1)
+
+    width, height = img.size
+    pixels = list(img.getdata())
+
+    # --- Генерация хедера ---
+    c_code = []
+    c_code.append(f"#pragma once")
+    c_code.append(f'#include "shitgui.h"')
+    c_code.append(f"")
+    c_code.append(f"// Transparency Key (Magic Number for transparent pixels)")
+    c_code.append(f"#define {output_name.upper()}_TRANSPARENCY_KEY 0x{TRANSPARENCY_KEY:06X}")
+    c_code.append(f"")
+    c_code.append(f"// Image: {width}x{height}")
+    c_code.append(f"static const u32 {output_name}_data[] = {{")
+
+    line = "    "
+    for i, p in enumerate(pixels):
+        r, g, b, a = p
+        
+        # ГЛАВНОЕ ИЗМЕНЕНИЕ: Проверяем прозрачность
+        # Если альфа < 128 (условно, "прозрачный"), используем ключ
+        if a < 128:
+            val = TRANSPARENCY_KEY
+        else:
+            val = (r << 16) | (g << 8) | b
+        
+        line += f"0x{val:06X}, "
+        
+        if (i + 1) % 8 == 0:
+            c_code.append(line.strip())
+            line = "    "
+
+    if line.strip():
+        c_code.append(line.strip())
+
+    c_code.append(f"}};")
+    c_code.append(f"")
+    c_code.append(f"static SG_Image {output_name}_img = {{")
+    c_code.append(f"    .width = {width},")
+    c_code.append(f"    .height = {height},")
+    c_code.append(f"    .buffer = (u32*){output_name}_data")
+    c_code.append(f"}};")
+
+    # Сохраняем в файл
+    output_filename = f"{output_name}.h"
+    with open(output_filename, "w") as f:
+        f.write("\n".join(c_code))
+
+    print(f"Done! Saved '{output_filename}' with transparency key 0x{TRANSPARENCY_KEY:06X}")
+
+if __name__ == "__main__":
+    main()