lordtet
7b4e4afd43
Didn't feel the need to make a new branch for this one, but i added some doxygen documentation templates to all of the headers. It's a bit overdue.
72 lines
1.1 KiB
C
72 lines
1.1 KiB
C
/**
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* @file vga.h
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* @brief VGA
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* @details Responsible for VGA buffer control.
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*/
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#ifndef VGA_H
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#define VGA_H
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/**
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* @brief
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*/
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#define VGA_GRID_COLS 80
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/**
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* @brief
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*/
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#define VGA_GRID_ROWS 25
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/**
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* @brief
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*/
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#define DEFAULT_ATTRIBUTES 0x0F00
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#include <stdint.h>
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#include <stdarg.h>
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#include "io.h"
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/**
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* @brief Information on the VGA buffer
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*/
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extern volatile uint16_t* const vga_buffer;
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/**
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* @brief
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*/
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typedef struct vga_ctx_s {
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int cursor_col; /**< @brief */
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int cursor_row; /**< @brief */
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uint16_t attributes; /**< @brief */
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} vga_ctx_t;
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/**
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* @brief grid is top left origin. This is our cursor! Black background, White foreground
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*/
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extern uint16_t vga_attributes;
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/**
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* @brief
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*/
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extern char_writer_t* default_vga;
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/**
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* @brief Clear the VGA buffer, context optional
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* @param ctx
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*/
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void vga_clear_ctx(vga_ctx_t* ctx);
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/**
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* @brief
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*/
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void vga_clear();
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/**
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* @brief Write character c to cursor. Implements IO generic ASCII output
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* @param ctx
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* @param c
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* @return int
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*/
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int vga_out(void* ctx, char c);
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#endif
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