61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#include <font.h>
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#include <framebuffer.h>
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#define CONSOLE_BUFFER_SIZE 16384
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char console_buffer[CONSOLE_BUFFER_SIZE];
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char console_output_buffer[CONSOLE_BUFFER_SIZE];
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char *console_buffer_p = console_buffer;
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struct fb *console_framebuffer = 0;
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struct font *console_font = 0;
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unsigned int chars_per_line = 0, lines = 0;
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void console_char_to_fb(char c, unsigned int x, unsigned int y) {
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unsigned int cx, cy, bit = 0;
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char *font_char = &console_font->data[console_font->bytes_per_char * (c - console_font->ascii_offset)];
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for (cy = 0; cy < console_font->height; cy++) {
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for (cx = 0; cx < console_font->width; cx++) {
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unsigned char on = font_char[bit / 8] & (1 << (bit % 8));
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if (on)
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fb_write_pixel(console_framebuffer, x + cx, y + cy, 0xff, 0xff, 0xff);
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else
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fb_write_pixel(console_framebuffer, x + cx, y + cy, 0x00, 0x00, 0x00);
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bit++;
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}
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}
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}
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void console_refresh_fb() {
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if (!console_framebuffer)
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return;
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}
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void console_clear() {
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int i;
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for (i = 0; i < CONSOLE_BUFFER_SIZE; i++) {
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console_buffer[i] = 0;
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}
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}
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void console_init(struct fb *f) {
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console_clear();
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console_refresh_fb();
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console_font = font_get();
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console_framebuffer = f;
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chars_per_line = console_framebuffer->width / console_font->width;
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lines = console_framebuffer->height / console_font->height;
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console_char_to_fb('A', 100, 100);
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console_char_to_fb('E', 111, 100);
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console_char_to_fb('D', 122, 100);
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console_char_to_fb('R', 133, 100);
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console_char_to_fb('I', 144, 100);
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console_char_to_fb('X', 155, 100);
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}
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void console_putc(char c) {
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*console_buffer_p = c;
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if (++console_buffer_p > console_buffer + CONSOLE_BUFFER_SIZE)
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console_buffer_p = console_buffer;
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}
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