81 lines
1.9 KiB
C++
81 lines
1.9 KiB
C++
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <3ds.h>
|
|
#include "text.h"
|
|
|
|
#include "font.h"
|
|
|
|
//this code is not meant to be readable
|
|
int drawCharacter(u8* fb, font_s* font, char c, s16 x, s16 y, u16 w, u16 h)
|
|
{
|
|
charDesc_s* cd = &font->desc[(int)c];
|
|
|
|
if (!cd->data)
|
|
return 0;
|
|
|
|
x += cd->xo; y += font->height - cd->yo - cd->h;
|
|
|
|
if (x < 0 || x + cd->w >= w || y < -cd->h || y >= h + cd->h)
|
|
return 0;
|
|
|
|
u8* charData = cd->data;
|
|
s16 cy = y, ch = cd->h, cyo = 0;
|
|
|
|
if (y < 0) {
|
|
cy = 0;
|
|
cyo = -y;
|
|
ch = cd->h-cyo;
|
|
} else if (y + ch > h) {
|
|
ch = h - y;
|
|
}
|
|
|
|
fb += (x * h + cy) * 3;
|
|
const u8 r = font->color[0];
|
|
const u8 g = font->color[1];
|
|
const u8 b = font->color[2];
|
|
|
|
for (int i = 0; i < cd->w; i++) {
|
|
charData += cyo;
|
|
for (int j = 0; j < ch; j++) {
|
|
u8 v = *(charData++);
|
|
if (v) {
|
|
fb[0] = (fb[0] * (0xFF - v) + (b * v)) >> 8;
|
|
fb[1] = (fb[1] * (0xFF - v) + (g * v)) >> 8;
|
|
fb[2] = (fb[2] * (0xFF - v) + (r * v)) >> 8;
|
|
}
|
|
fb += 3;
|
|
}
|
|
charData += (cd->h - (cyo + ch));
|
|
fb += (h - ch) * 3;
|
|
}
|
|
return cd->xa;
|
|
}
|
|
|
|
void drawString(u8* fb, font_s* f, const std::string& str, s16 x, s16 y, u16 w, u16 h)
|
|
{
|
|
if (!f || !fb)
|
|
return;
|
|
|
|
int dx = 0, dy = 0;
|
|
for (const char& c : str)
|
|
{
|
|
dx += drawCharacter(fb, f, c, x + dx, y + dy, w, h);
|
|
if (c == '\n') {
|
|
dx = 0;
|
|
dy -= f->height;
|
|
}
|
|
}
|
|
}
|
|
|
|
void gfxDrawText(gfxScreen_t screen, gfx3dSide_t side, font_s* font, const std::string& str, s16 x, s16 y)
|
|
{
|
|
if (!font)
|
|
font = &fontDefault;
|
|
|
|
u16 fbWidth, fbHeight;
|
|
u8* fbAdr = gfxGetFramebuffer(screen, side, &fbWidth, &fbHeight);
|
|
|
|
drawString(fbAdr, font, str, y, x, fbHeight, fbWidth);
|
|
}
|