Move src/modules/main -> src/kernel

src/kernel/console.h

@@ -0,0 +1,78 @@
+#pragma once
+
+#include "font.h"
+#include "screen.h"
+#include "util.h"
+
+struct console_data;
+
+class console
+{
+public:
+	console(const font &f, const screen &s, void *scratch, size_t len);
+
+	void repaint();
+	void scroll(unsigned lines);
+
+	void set_color(uint8_t fg, uint8_t bg);
+
+	size_t puts(const char *message);
+	size_t printf(const char *fmt, ...);
+
+	template <typename T>
+	void put_hex(T x);
+
+	template <typename T>
+	void put_dec(T x);
+
+	static console * get() { return default_console; }
+
+private:
+	char * line_pointer(unsigned line);
+	uint16_t * attr_pointer(unsigned line);
+
+	font m_font;
+	screen m_screen;
+
+	coord<unsigned> m_size;
+	coord<unsigned> m_pos;
+	screen::pixel_t m_fg, m_bg;
+	uint16_t m_attr;
+
+	size_t m_first;
+	size_t m_length;
+
+	char *m_data;
+	uint16_t *m_attrs;
+	screen::pixel_t *m_palette;
+
+	static console *default_console;
+};
+
+extern const char digits[];
+
+template <typename T>
+void console::put_hex(T x)
+{
+	static const int chars = sizeof(x) * 2;
+	char message[chars + 1];
+	for (int i=0; i<chars; ++i) {
+		message[chars - i - 1] = digits[(x >> (i*4)) & 0xf];
+	}
+	message[chars] = 0;
+	puts(message);
+}
+
+template <typename T>
+void console::put_dec(T x)
+{
+	static const int chars = sizeof(x) * 3;
+	char message[chars + 1];
+	char *p = message + chars;
+	*p-- = 0;
+	do {
+		*p-- = digits[x % 10];
+		x /= 10;
+	} while (x != 0);
+	puts(++p);
+}