36 lines
730 B
C
36 lines
730 B
C
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/*
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* canvas.c
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*
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* Created on: Jan 15, 2016
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* Author: tkl
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*/
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#include <stddef.h>
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#include <string.h>
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#include "font.h"
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#include "bitmap.h"
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int bitmap_print_text(const struct font *font, struct bitmap *bitmap, int x_pos,
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int y_pos, char *text)
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{
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int i = 0, pos = 0;
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/* align to page */
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if(y_pos % 8 != 0)
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y_pos -= y_pos % 8;
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pos = y_pos / 8 * bitmap->x_size + x_pos;
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while(text[i] != 0) {
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while(((pos + font->char_size_x) % bitmap->x_size) < font->char_size_x)
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pos++;
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memcpy(&bitmap->buffer[pos], &font->font[text[i] * font->char_size_x],
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font->char_size_x);
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memset(&bitmap->buffer[pos + font->char_size_x], 0x00,
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font->char_between);
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i++;
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pos += font->char_size_x + 1;
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}
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return 0;
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}
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