wip: putchar and stuff
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33cb3dfa30
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5383c4eced
@ -5,17 +5,18 @@
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#include <stddef.h>
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#include <stdint.h>
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#define VGA_WIDTH 80
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#define VGA_HEIGHT 25
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#define SCREEN_WIDTH 80
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#define SCREEN_HEIGHT 25
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#define TERM_BUF ((uint16_t *)0xC03FF000)
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#define TERM_COUNT 10
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struct screen {
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size_t row;
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size_t column;
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uint8_t color;
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uint16_t buffer[VGA_WIDTH * VGA_HEIGHT];
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uint8_t default_color;
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uint32_t fg_color;
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uint32_t bg_color;
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uint16_t buffer[SCREEN_WIDTH * SCREEN_HEIGHT];
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uint32_t default_color;
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char line[256];
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};
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@ -41,8 +42,8 @@ typedef enum {
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enum cursor_direction { LEFT, RIGHT, UP, DOWN };
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void terminal_initialize(void);
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void terminal_set_bg_color(uint8_t color);
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void terminal_set_fg_color(uint8_t color);
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void terminal_set_bg_color(uint32_t color);
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void terminal_set_fg_color(uint32_t color);
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int terminal_putchar(char c);
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int terminal_write(const char *data, size_t size);
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int terminal_writestring(const char *data);
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@ -53,8 +54,8 @@ struct key_event terminal_getkey(void);
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void update_cursor(void);
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void move_cursor(int direction);
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void set_color_level(int level);
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void terminal_set_default_fg_color(uint8_t fg_color);
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void terminal_set_default_bg_color(uint8_t fg_color);
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void terminal_change_default_fg_color(uint8_t color);
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uint8_t terminal_get_default_color(void);
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void terminal_set_default_fg_color(uint32_t fg_color);
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void terminal_set_default_bg_color(uint32_t fg_color);
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void terminal_change_default_fg_color(uint32_t color);
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uint32_t terminal_get_default_color(void);
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uint8_t terminal_get_char(int column, int row);
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@ -15,163 +15,147 @@
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static struct screen screens[TERM_COUNT];
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struct screen *screen = &screens[0];
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static inline uint8_t vga_entry_color(vga_color fg, vga_color bg)
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{
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return fg | bg << 4;
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}
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static inline uint16_t vga_entry(unsigned char uc, uint8_t color)
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{
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return (uint16_t)uc | (uint16_t)color << 8;
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}
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void terminal_initialize(void)
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{
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for (size_t y = 0; y < VGA_HEIGHT; y++) {
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for (size_t x = 0; x < VGA_WIDTH; x++) {
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const size_t index = y * VGA_WIDTH + x;
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TERM_BUF[index] = vga_entry(' ', VGA_COLOR_WHITE);
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}
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}
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for (int i = 0; i < TERM_COUNT; i++) {
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screens[i].row = 0;
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screens[i].column = 0;
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screens[i].default_color =
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vga_entry_color(VGA_COLOR_WHITE, VGA_COLOR_BLACK);
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screens[i].color = screens[i].default_color;
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screens[i].default_color = 0xffffff;
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screens[i].fg_color = screens[i].default_color;
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memcpy(screens[i].buffer, TERM_BUF, sizeof(screen->buffer));
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}
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}
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void terminal_set_screen(int pos)
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{
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memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer));
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screen = &screens[pos];
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memcpy(TERM_BUF, screen->buffer, sizeof(screen->buffer));
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update_cursor();
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if (TERM_BUF[0] == vga_entry(' ', VGA_COLOR_WHITE))
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kprintf(PROMPT);
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// TODO
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/* memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer)); */
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/* screen = &screens[pos]; */
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/* memcpy(TERM_BUF, screen->buffer, sizeof(screen->buffer)); */
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/* update_cursor(); */
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/* if (TERM_BUF[0] == vga_entry(' ', VGA_COLOR_WHITE)) */
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/* kprintf(PROMPT); */
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}
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void terminal_set_bg_color(uint8_t bg_color)
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void terminal_set_bg_color(uint32_t bg_color)
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{
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screen->color = bg_color << 4 | (screen->color & 0x0F);
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screen->bg_color = bg_color;
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}
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void terminal_set_fg_color(uint8_t fg_color)
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void terminal_set_fg_color(uint32_t fg_color)
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{
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screen->color = (screen->color & 0xF0) | fg_color;
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screen->fg_color = screen->fg_color;
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}
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void terminal_set_color(uint8_t color)
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void terminal_set_color(uint32_t fg_color, uint32_t bg_color)
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{
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screen->color = color;
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screen->fg_color = fg_color;
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screen->bg_color = bg_color;
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}
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void terminal_set_default_fg_color(uint8_t fg_color)
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void terminal_set_default_fg_color(uint32_t fg_color)
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{
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screen->default_color = (screen->default_color & 0xF0) | fg_color;
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screen->default_color = fg_color;
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}
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void terminal_set_default_bg_color(uint8_t bg_color)
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{
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screen->default_color = bg_color << 4 | (screen->default_color & 0x0F);
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}
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uint8_t terminal_get_default_color(void)
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uint32_t terminal_get_default_color(void)
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{
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return screen->default_color;
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}
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uint8_t terminal_get_char(int column, int row)
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uint8_t terminal_get_char(int x, int y)
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{
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return screen->buffer[row * VGA_WIDTH + column];
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return screen->buffer[y * SCREEN_WIDTH + x];
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}
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void terminal_putentryat(char c, uint32_t color, size_t x, size_t y)
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void terminal_putentryat(char c, uint32_t fg_color, uint32_t bg_color, size_t x,
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size_t y)
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{
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struct font node = eating_pasta_regular_32_font[(int)c];
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char *glyph = node.bitmap;
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for (size_t cy = 0; cy < node.height; cy++)
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for (size_t cx = 0; cx < node.width; cx++)
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if (glyph[cy + node.width + cx] == '#')
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put_pixel(color, x + cx, y + cy);
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/* const size_t index = y * VGA_WIDTH + x; */
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/* TERM_BUF[index] = vga_entry(c, color); */
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for (size_t cy = 0; cy < node.height; cy++) {
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for (size_t cx = 0; cx < node.width; cx++) {
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if (glyph[cy * node.width + cx] == '#')
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put_pixel(fg_color, x + cx, y + cy);
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else if (bg_color)
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put_pixel(bg_color, x + cx, y + cy);
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}
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}
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}
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static void terminal_scroll(void)
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{
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screen->row--;
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for (size_t i = 0; i < VGA_WIDTH * (VGA_HEIGHT - 1); i++)
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TERM_BUF[i] = TERM_BUF[i + VGA_WIDTH];
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for (size_t i = 0; i < VGA_WIDTH; i++)
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terminal_putentryat(' ', VGA_COLOR_WHITE, i, VGA_HEIGHT - 1);
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// TODO
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/* screen->row--; */
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/* for (size_t i = 0; i < SCREEN_WIDTH * (SCREEN_HEIGHT - 1); i++) */
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/* TERM_BUF[i] = TERM_BUF[i + SCREEN_WIDTH]; */
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/* for (size_t i = 0; i < SCREEN_WIDTH; i++) */
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/* terminal_putentryat(' ', VGA_COLOR_WHITE, i, SCREEN_HEIGHT - 1);
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*/
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}
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static void terminal_new_line(void)
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{
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screen->column = 0;
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if (++screen->row == VGA_HEIGHT)
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if (++screen->row == SCREEN_HEIGHT)
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terminal_scroll();
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}
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static uint8_t get_entry_color(uint16_t vga_entry)
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void terminal_change_default_color(uint32_t color)
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{
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return vga_entry >> 8;
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// TODO
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/* terminal_set_color(color); */
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/* for (size_t y = 0; y < SCREEN_HEIGHT; y++) { */
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/* for (size_t x = 0; x < SCREEN_WIDTH; x++) { */
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/* const size_t index = y * SCREEN_WIDTH + x; */
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/* uint8_t entry_color = get_entry_color(TERM_BUF[index]);
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*/
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/* TERM_BUF[index] = vga_entry( */
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/* TERM_BUF[index], */
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/* entry_color == screen->default_color ? color */
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/* : entry_color);
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*/
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/* } */
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/* } */
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/* memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer)); */
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/* screen->default_color = color; */
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/* screen->color = color; */
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}
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void terminal_change_default_color(uint8_t color)
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{
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terminal_set_color(color);
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for (size_t y = 0; y < VGA_HEIGHT; y++) {
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for (size_t x = 0; x < VGA_WIDTH; x++) {
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const size_t index = y * VGA_WIDTH + x;
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uint8_t entry_color = get_entry_color(TERM_BUF[index]);
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TERM_BUF[index] = vga_entry(
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TERM_BUF[index],
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entry_color == screen->default_color ? color
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: entry_color);
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}
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}
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memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer));
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screen->default_color = color;
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screen->color = color;
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}
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void terminal_change_default_fg_color(uint8_t fg_color)
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void terminal_change_default_fg_color(uint32_t fg_color)
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{
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terminal_set_fg_color(fg_color);
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terminal_change_default_color(screen->color);
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terminal_change_default_color(screen->fg_color);
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}
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void terminal_clear(void)
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{
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for (size_t y = 0; y < VGA_HEIGHT; y++) {
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for (size_t x = 0; x < VGA_WIDTH; x++) {
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const size_t index = y * VGA_WIDTH + x;
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TERM_BUF[index] = vga_entry(' ', screen->color);
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}
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}
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memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer));
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screen->column = 0;
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screen->row = 0;
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// TODO
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/* for (size_t y = 0; y < SCREEN_HEIGHT; y++) { */
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/* for (size_t x = 0; x < SCREEN_WIDTH; x++) { */
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/* const size_t index = y * SCREEN_WIDTH + x; */
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/* TERM_BUF[index] = vga_entry(' ', screen->color); */
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/* } */
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/* } */
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/* memcpy(screen->buffer, TERM_BUF, sizeof(screen->buffer)); */
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/* screen->column = 0; */
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/* screen->row = 0; */
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}
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int terminal_putchar(char c)
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{
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terminal_putentryat(c, 0xCCFFE5, 10, 10);
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/* if (c == '\r') */
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/* screen->column = 0; */
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/* else if (c == '\n') */
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/* terminal_new_line(); */
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/* if (!isprint(c)) */
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/* return 1; */
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/* terminal_putentryat(c, screen->color, screen->column, screen->row);
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*/
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/* if (++screen->column == VGA_WIDTH) */
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/* terminal_new_line(); */
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/* return 1; */
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terminal_putentryat(c, 0xCCFFE5, 0xCCCC00, 10, 10);
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if (c == '\r')
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screen->column = 0;
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else if (c == '\n')
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terminal_new_line();
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if (!isprint(c))
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return 1;
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terminal_putentryat(c, screen->fg_color, screen->bg_color,
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screen->column, screen->row);
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if (++screen->column == SCREEN_WIDTH)
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terminal_new_line();
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return 1;
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}
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int terminal_write(const char *data, size_t size)
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@ -191,7 +175,7 @@ int terminal_writestring(const char *data)
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void update_cursor(void)
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{
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uint16_t pos = screen->row * VGA_WIDTH + screen->column;
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uint16_t pos = screen->row * SCREEN_WIDTH + screen->column;
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outb(0x3D4, 0x0F);
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outb(0x3D5, pos & 0xFF);
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@ -206,14 +190,14 @@ void move_cursor(int direction)
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if (screen->column) {
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screen->column--;
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} else if (screen->row) {
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screen->column = VGA_WIDTH - 1;
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screen->column = SCREEN_WIDTH - 1;
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screen->row--;
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}
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break;
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case RIGHT:
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if (screen->column < VGA_WIDTH - 1) {
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if (screen->column < SCREEN_WIDTH - 1) {
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screen->column++;
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} else if (screen->row < VGA_HEIGHT - 1) {
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} else if (screen->row < SCREEN_HEIGHT - 1) {
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screen->column = 0;
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screen->row++;
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} else {
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@ -240,7 +224,7 @@ void set_color_level(int level)
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VGA_COLOR_LIGHT_GREY};
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if (level == 0) {
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terminal_set_color(screen->default_color);
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terminal_set_color(screen->default_color, 0);
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return;
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}
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terminal_set_fg_color(color_translation[level]);
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