feature: terminal scroll works again (with a bg image, without the bg image it's a wip)

src/drivers/vbe.c

@@ -1,5 +1,4 @@
 #include "vbe.h"
-#include "drivers.h"
 #include "icon.h"
 
 struct vbe_interface display;

src/kernel.c

@@ -3,7 +3,6 @@
 #include "drivers.h"
 #include "gdt.h"
 #include "icon.h"
-#include "icons/image.h"
 #include "idt.h"
 #include "kprintf.h"
 #include "memory.h"

src/terminal/put.c

@@ -3,6 +3,7 @@
 #include "font.h"
 #include "fonts/eating_pasta_regular_13.h"
 #include "fonts/minecraft_medium_13.h"
+#include "icons/image.h"
 #include "kprintf.h"
 #include "shell.h"
 #include "string.h"
@@ -75,16 +76,21 @@ uint8_t terminal_get_char(int x, int y)
 void terminal_putentryat(struct font node, uint32_t fg_color, uint32_t bg_color,
                          size_t x, size_t y)
 {
+	if (node.width == 1 && node.height == 1) {
+		return;
+	}
 	char *glyph = node.bitmap;
 	for (size_t cy = 0; cy < node.height; cy++) {
 		for (size_t cx = 0; cx < node.width; cx++) {
-			put_pixel((glyph[cy * node.width + cx] == '#')
-			              ? fg_color
-			              : bg_color,
-			          x + cx, y + cy);
-			/* put_pixel((fg_color, x + cx, y + cy); */
+			if (glyph[cy * node.width + cx] == '#')
+				put_pixel(fg_color, x + cx, y + cy);
+			/* put_pixel((glyph[cy * node.width +
+			 * cx] == '#') ? fg_color */
+			/*               : bg_color, */
+			/*           x + cx, y + cy); */
 			/* else if (bg_color) */
-			/* put_pixel(bg_color, x + cx, y + cy); */
+			/* put_pixel(bg_color, x + cx, y + cy);
+			 */
 		}
 	}
 }
@@ -97,21 +103,23 @@ static struct font get_font_node(int c)
 static void terminal_scroll(void)
 {
 	screen->row--;
+	draw_icon(0, 0, &image_icon);
 	for (size_t i = 0; i < VGA_WIDTH * (VGA_HEIGHT - 1); i++) {
 		const uint32_t x = (i % VGA_WIDTH) * FONT_SIZE;
 		const uint32_t y = (i / VGA_WIDTH) * FONT_SIZE;
+		screen->buffer[i] = screen->buffer[i + VGA_WIDTH];
 		terminal_putentryat(get_font_node(screen->buffer[i]),
 		                    screen->fg_color, screen->bg_color, x, y);
 	}
 	/* for (size_t i = 0; i < VGA_WIDTH; i++) */
 	/* 	terminal_putentryat(get_font_node(' '), 0, 0, i * FONT_SIZE, */
-	/* 	                    VGA_HEIGHT - 1); */
+	/* 	                    (VGA_HEIGHT - 1) * FONT_SIZE); */
 }
 
 static void terminal_new_line(void)
 {
 	screen->column = 0;
-	if (++screen->row == VGA_HEIGHT)
+	if (++screen->row == VGA_HEIGHT - 1)
 		terminal_scroll();
 }
 
@@ -121,20 +129,23 @@ void terminal_change_default_color(uint32_t color)
 	/* terminal_set_color(color); */
 	/* for (size_t y = 0; y < VGA_HEIGHT; y++) { */
 	/* 	for (size_t x = 0; x < VGA_WIDTH; x++) { */
-	/* 		const size_t index = y * VGA_WIDTH + x; */
+	/* 		const size_t index = y * VGA_WIDTH + x;
+	 */
 	/* 		uint8_t entry_color =
 	 * get_entry_color(TERM_BUF[index]);
 	 */
 	/* 		TERM_BUF[index] = vga_entry( */
 	/* 		    TERM_BUF[index], */
-	/* 		    entry_color == screen->default_color ? color
+	/* 		    entry_color == screen->default_color
+	 * ? color
 	 */
 	/* 							 :
 	 * entry_color);
 	 */
 	/* 	} */
 	/* } */
-	/* memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer)); */
+	/* memcpy(screen->buffer, TERM_BUF,
+	 * sizeof(screen->buffer)); */
 	/* screen->default_color = color; */
 	/* screen->color = color; */
 }
@@ -150,12 +161,15 @@ void terminal_clear(void)
 	// TODO
 	/* for (size_t y = 0; y < VGA_HEIGHT; y++) { */
 	/* 	for (size_t x = 0; x < VGA_WIDTH; x++) { */
-	/* 		const size_t index = y * VGA_WIDTH + x; */
-	/* 		TERM_BUF[index] = vga_entry(' ', screen->color);
+	/* 		const size_t index = y * VGA_WIDTH + x;
+	 */
+	/* 		TERM_BUF[index] = vga_entry(' ',
+	 * screen->color);
 	 */
 	/* 	} */
 	/* } */
-	/* memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer)); */
+	/* memcpy(screen->buffer, TERM_BUF,
+	 * sizeof(screen->buffer)); */
 	/* screen->column = 0; */
 	/* screen->row = 0; */
 }
@@ -168,12 +182,19 @@ int terminal_putchar(char c)
 		terminal_new_line();
 	if (!isprint(c))
 		return 1;
+	/* if (c == ' ') { */
+	/* 	for (size_t cy = 0; cy < 13; cy++) */
+	/* 		for (size_t cx = 0; cx < 13; cx++) */
+	/* 			put_pixel(0, screen->column + cx, */
+	/* 			          screen->row + cy); */
+	/* } else { */
 	screen->buffer[screen->column + screen->row * VGA_WIDTH] = c;
 	terminal_putentryat(get_font_node(c), screen->fg_color,
 	                    screen->bg_color, screen->column * FONT_SIZE,
 	                    screen->row * FONT_SIZE);
 	if (++screen->column == VGA_WIDTH)
 		terminal_new_line();
+	/* } */
 	return 1;
 }
 
@@ -194,7 +215,8 @@ int terminal_writestring(const char *data)
 
 void update_cursor(void)
 {
-	/* uint16_t pos = screen->row * VGA_WIDTH + screen->column; */
+	/* uint16_t pos = screen->row * VGA_WIDTH +
+	 * screen->column; */
 
 	/* outb(0x3D4, 0x0F); */
 	/* outb(0x3D5, pos & 0xFF); */