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Added Drawstring function

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0xmac 2025-01-23 11:29:49 +01:00
parent e34798f749
commit f1ff0606e7
1 changed files with 28 additions and 0 deletions
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28
src/sdlinit.c
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@ -1,5 +1,6 @@
#include <SDL2/SDL.h>
#include "config.h"
#include "font.h"
static SDL_Window *window;
static SDL_Renderer *renderer;
@ -44,3 +45,30 @@ void initWindow(){
void clearScreen(uint32_t pixels[], uint32_t color){
for (uint32_t i = 0; i < SDL_X_SIZE * SDL_Y_SIZE; i++) pixels[i] = color;
}
#define CHARMARGIN 0
void drawString(const char* string, uint32_t pixels[], uint16_t screenXsize, uint32_t foreground, uint32_t background, uint16_t x, uint16_t y, uint8_t scale){
uint16_t xCount = x;
uint16_t yCount = y;
for (int i = 0; string[i]; i++){
if (string[i] > 31 && string[i] < 127){
for (int _x = 0; _x < FONT_WIDTH * scale; _x++){
if (xCount + _x >= screenXsize){
xCount = x;
yCount += (FONT_HEIGHT + CHARMARGIN) * scale;
}
for (int _y = 0; _y < FONT_HEIGHT * scale; _y++){
uint8_t value = typeface[((string[i] - 32) * FONT_HEIGHT) + (_y / scale)] & (128 >> (_x / scale));
if (value && foreground != 0) pixels[(( yCount + _y) * screenXsize) + (xCount + _x)] = foreground;
else if (!value && background != 0) pixels[(( yCount + _y) * screenXsize) + (xCount + _x)] = background;
}
}
xCount += (FONT_WIDTH + CHARMARGIN) * scale;
} else if (string[i] == '\n'){
xCount = x;
yCount += (FONT_HEIGHT + CHARMARGIN) * scale;
}
}
}