GBA_MultiMenu/source/font.c
Lesserkuma 08cc7b6bc8 -
2023-07-26 15:26:19 +02:00

322 lines
8.1 KiB
C

/*
GBA Multi Game Menu
Author: Lesserkuma (github.com/lesserkuma)
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "font.h"
FontSpecs sFontSpecs;
NFTR_Header sNFTR_Header;
FINF_Header sFINF_Header;
CGLP_Header sCGLP_Header;
CWDH_Header sCWDH_Header;
CMAP_Header sCMAP_Header;
u16 FallbackCharacter;
u16 ArrowCharacter;
s8 FontMarginTop;
s8 FontMarginBottom;
u8 last_font = -1;
const u8* font;
void LoadFont(u8 index) {
if (index != last_font) {
font = font_nftr;
FallbackCharacter = 0x2753;
ArrowCharacter = 0x21E8;
FontMarginTop = 0;
FontMarginBottom = 0;
#ifdef FONT_NTR_IPL
if (index == 1) {
font = NTR_IPL_font_s_nftr;
FallbackCharacter = 0xE011;
ArrowCharacter = 0xE019;
FontMarginTop = 2;
FontMarginBottom = 3;
}
#endif
#ifdef FONT_TBF1
if (index == 2) {
font = TBF1_s_nftr;
FallbackCharacter = 0xE011;
ArrowCharacter = 0xE019;
FontMarginTop = 1;
FontMarginBottom = 1;
}
#endif
#ifdef FONT_TBF1_CN
if (index == 3) {
font = TBF1_cn_s_nftr;
FallbackCharacter = 0xE011;
ArrowCharacter = 0xE019;
FontMarginTop = 2;
FontMarginBottom = 2;
}
#endif
#ifdef FONT_TBF1_KR
if (index == 4) {
font = TBF1_kr_s_nftr;
FallbackCharacter = 0xE011;
ArrowCharacter = 0xE019;
FontMarginTop = 2;
FontMarginBottom = 2;
}
#endif
#ifdef FONT_TWL_IRAJ_1
if (index == 5) {
font = TWL_IRAJ_1_nftr;
FallbackCharacter = 0xFF1F;
ArrowCharacter = 0x2192;
FontMarginTop = 4;
FontMarginBottom = 6;
}
#endif
LoadNFTR(font);
last_font = index;
}
}
void LoadNFTR(const u8* nftr_data) {
u32 pos = 0;
memcpy(&sNFTR_Header, nftr_data+pos, sizeof(sNFTR_Header));
pos += sNFTR_Header.size;
memcpy(&sFINF_Header, nftr_data+pos, sizeof(sFINF_Header));
pos += sFINF_Header.size;
memcpy(&sCGLP_Header, nftr_data+pos, sizeof(sCGLP_Header));
sFontSpecs.cglp_offset = pos;
pos = sFINF_Header.offset_CWDH - 8;
memcpy(&sCWDH_Header, nftr_data+pos, sizeof(sCWDH_Header));
sFontSpecs.cwdh_offset = pos + 16;
pos = sFINF_Header.offset_CMAP - 8;
memcpy(&sCMAP_Header, nftr_data+pos, sizeof(sCMAP_Header));
sFontSpecs.cmap_offset = pos;
sFontSpecs.nftr_version = sNFTR_Header.version;
sFontSpecs.max_width = sCGLP_Header.max_width;
sFontSpecs.max_height = sCGLP_Header.max_height;
sFontSpecs.bytes_per_char = sCGLP_Header.bytes_per_char;
sFontSpecs.num_of_chars = sCWDH_Header.num_of_chars;
sFontSpecs.bpp = sCGLP_Header.bpp;
}
u16 GetFontIndex(u16 ch, const u8* nftr_data) {
u32 pos = sFontSpecs.cmap_offset;
while (TRUE) {
if (pos <= 0) return 0xFFFF;
CMAP_Header tCMAP_Header;
memcpy(&tCMAP_Header, nftr_data+pos, sizeof(tCMAP_Header));
pos += 20;
if (ch < tCMAP_Header.start_code || ch > tCMAP_Header.end_code) {
// CMAP doesn't have this character
pos = tCMAP_Header.next_offset - 8;
continue;
}
if (tCMAP_Header.type == 0) {
u16 index_offset = nftr_data[pos+1] << 8 | nftr_data[pos];
return ch - tCMAP_Header.start_code + index_offset;
} else if (tCMAP_Header.type == 1) {
u16 utf16le_index = tCMAP_Header.start_code;
for (u16 i = tCMAP_Header.start_code; i < tCMAP_Header.end_code; i++) {
u16 font_index = nftr_data[pos+1] << 8 | nftr_data[pos];
pos += 2;
if (utf16le_index == ch) return font_index;
utf16le_index += 1;
}
} else if (tCMAP_Header.type == 2) {
u16 index_offset = nftr_data[pos+1] << 8 | nftr_data[pos];
pos += 2;
for (u16 i = 0; i < index_offset; i++) {
u16 utf16le_index = nftr_data[pos+1] << 8 | nftr_data[pos];
pos += 2;
u16 font_index = nftr_data[pos+1] << 8 | nftr_data[pos];
pos += 2;
if (utf16le_index == ch) return font_index;
utf16le_index += 1;
}
}
return 0xFFFF;
}
}
void GetFontWidths(u16 index, const u8* nftr_data, u8* a, u8* b, u8* c) {
u32 pos = sFontSpecs.cwdh_offset;
pos = pos + (index * 3);
*a = nftr_data[pos++];
*b = nftr_data[pos++];
*c = nftr_data[pos++];
}
void AsciiToUnicode(char* text, u16* output) {
for (u8 i = 0; i < 64; i++) {
if (text[i] == 0) break;
output[i] = text[i];
}
}
void DrawText(u8 px, u8 py, u8 align, u16* text, u8 length, const u8* nftr_data, volatile void* vram, BOOL highlighted) {
u8 pos_left = 0;
u8 glyph_width = 0;
u8 glyph_left = 0;
u8 pixels[sFontSpecs.max_width * sFontSpecs.max_height];
u8 canvas[SCREEN_WIDTH * sFontSpecs.max_height];
u8 color_modifier = 0;
u32 offset = 0;
py += FontMarginTop;
if (highlighted) {
color_modifier = 10;
}
memset(canvas, 255, SCREEN_WIDTH * sFontSpecs.max_height);
for (u8 i = 0; i < length; i++) {
u8 a, b, c = 0;
u16 ch = text[i];
if (ch == 0x0000 || ch == 0xFFFF) {
break;
}
BOOL last_ch = FALSE;
while (1) {
u16 index = GetFontIndex(ch, nftr_data);
if (index == 0xFFFF) { // character not found
ch = FallbackCharacter;
continue;
}
if (pos_left + sFontSpecs.max_width + (sFontSpecs.max_width >> 1) >= SCREEN_WIDTH - SCREEN_MARGIN_RIGHT - px) {
if (ch != 0x2026) {
ch = 0x2026; // ...
last_ch = TRUE;
continue;
}
}
GetFontWidths(index, nftr_data, &a, &b, &c);
offset = index * sFontSpecs.bytes_per_char;
glyph_left = a;
if (glyph_left >= sFontSpecs.max_width) glyph_left = 0;
if (ch == 32) { // space
glyph_left = 0;
}
glyph_width = c - glyph_left;
break;
}
if (pos_left + glyph_width >= SCREEN_WIDTH - px) {
break;
}
if (b == 0) {
glyph_width = c;
}
if (sFontSpecs.nftr_version == 1) {
if (glyph_width == 0) glyph_width = sFontSpecs.max_width;
glyph_width += 1;
}
const u8* gl = &nftr_data[sFontSpecs.cglp_offset + 0x10 + offset];
u16 pixel_pos = 0;
if (align == ALIGN_LEFT) { // Draw to VRAM directly
if (sFontSpecs.bpp == 1) {
for (u8 a = 0; a < sFontSpecs.bytes_per_char; a++) {
for (u8 b = 0; b < 8; b++) {
pixels[pixel_pos++] = ((gl[a] >> (7 - b)) & 1);
}
}
for (u8 x = 0; x < sFontSpecs.max_height; x++) {
for (u8 y = 0; y < sFontSpecs.max_width; y++) {
u8 p = pixels[(x * sFontSpecs.max_width) + y];
if (p == 1) {
SetPixel(vram, py + x, px + y + pos_left, 254 - color_modifier);
}
}
}
} else if (sFontSpecs.bpp == 2) {
for (u8 a = 0; a < sFontSpecs.bytes_per_char; a++) {
for (u8 b = 0; b < 8; b += sFontSpecs.bpp) {
u8 p = 0;
for (u8 bit = 0; bit < sFontSpecs.bpp; bit++) {
p |= ((gl[a] >> (7 - (b + bit))) & 1) << bit;
}
pixels[pixel_pos++] = p;
}
}
for (u8 x = 0; x < sFontSpecs.max_height; x++) {
for (u8 y = 0; y < sFontSpecs.max_width; y++) {
u8 p = pixels[(x * sFontSpecs.max_width) + y];
if (p != 0) {
SetPixel(vram, py + x, px + y + pos_left, p + 250 - color_modifier);
}
}
}
}
} else {
if (sFontSpecs.bpp == 1) {
for (u8 a = 0; a < sFontSpecs.bytes_per_char; a++) {
for (u8 b = 0; b < 8; b++) {
pixels[pixel_pos++] = ((gl[a] >> (7 - b)) & 1);
}
}
for (u8 x = 0; x < sFontSpecs.max_height; x++) {
for (u8 y = 0; y < sFontSpecs.max_width; y++) {
u8 p = pixels[(x * sFontSpecs.max_width) + y];
if (p == 1) {
canvas[(x * SCREEN_WIDTH) + y + pos_left] = 254 - color_modifier;
}
}
}
} else if (sFontSpecs.bpp == 2) {
for (u8 a = 0; a < sFontSpecs.bytes_per_char; a++) {
for (u8 b = 0; b < 8; b += sFontSpecs.bpp) {
u8 p = 0;
for (u8 bit = 0; bit < sFontSpecs.bpp; bit++) {
p |= ((gl[a] >> (7 - (b + bit))) & 1) << bit;
}
pixels[pixel_pos++] = p;
}
}
for (u8 x = 0; x < sFontSpecs.max_height; x++) {
for (u8 y = 0; y < sFontSpecs.max_width; y++) {
u8 p = pixels[(x * sFontSpecs.max_width) + y];
if (p != 0) {
canvas[(x * SCREEN_WIDTH) + y + pos_left] = p + 250 - color_modifier;
}
}
}
}
}
pos_left += glyph_width;
if (last_ch) break;
}
if (align == ALIGN_LEFT) return;
if (align == ALIGN_CENTER) {
px = (SCREEN_WIDTH - pos_left) >> 1;
} else if (align == ALIGN_RIGHT) {
px = SCREEN_WIDTH - pos_left - px + 1;
}
u16 c = 0;
for (u8 x = 0; x < sFontSpecs.max_height; x++) {
for (u8 y = 0; y < SCREEN_WIDTH; y++) {
if (y > pos_left) {
c++;
continue;
}
if (canvas[c] != 255) {
SetPixel(vram, py + x, px + y, canvas[c]);
}
c++;
}
}
}