Move src/modules/main -> src/kernel

src/kernel/font.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <stdint.h>
+
+#include "screen.h"
+#include "util.h"
+
+class font
+{
+public:
+	static font load(void const *data);
+	font(const font &other);
+
+	unsigned glyph_bytes() const { return m_size.y * ((m_size.x + 7) / 8); }
+	unsigned count() const { return m_count; }
+	unsigned width() const { return m_size.x; }
+	unsigned height() const { return m_size.y; }
+	bool valid() const { return m_count > 0; }
+
+	void draw_glyph(
+			screen &s,
+			uint32_t glyph,
+			screen::pixel_t fg,
+			screen::pixel_t bg,
+			unsigned x,
+			unsigned y) const;
+
+private:
+	font();
+	font(unsigned height, unsigned width, unsigned count, uint8_t const *data);
+
+	coord<unsigned> m_size;
+	unsigned m_count;
+	uint8_t const *m_data;
+};
+