35 lines
1018 B
C
35 lines
1018 B
C
#include "font.h"
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#include <SDL3/SDL.h>
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static SDL_Texture *font = NULL;
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void draw_text(SDL_Renderer *renderer,
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char *text, size_t len, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
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if (font == NULL) {
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SDL_Surface *s = SDL_LoadBMP_IO(SDL_IOFromConstMem(font_data, font_data_len), true);
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SDL_SetSurfaceColorKey(s, true, SDL_MapSurfaceRGB(s, 255, 0, 255));
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font = SDL_CreateTextureFromSurface(renderer, s);
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SDL_DestroySurface(s);
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}
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SDL_SetTextureColorMod(font, r, g, b);
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SDL_FRect src = { .w = font_w, .h = font_h },
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dst = { .x = x, .y = y, .w = font_w, .h = font_h };
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for (size_t i = 0; i < len; i++) {
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unsigned char c = text[i];
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if (c == 0) break;
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if (c == '\n') {
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dst.x = x;
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dst.y += font_h;
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continue;
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}
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src.x = (c & 0xf) * font_w;
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src.y = (c >> 4) * font_h;
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SDL_RenderTexture(renderer, font, &src, &dst);
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dst.x += font_w;
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}
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}
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