353 lines
10 KiB
C++
353 lines
10 KiB
C++
/*************************************************************************/
|
|
/* bitmap_font_fb.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#include "bitmap_font_fb.h"
|
|
|
|
Error BitmapFontDataFallback::load_from_file(const String &p_filename, int p_base_size) {
|
|
_THREAD_SAFE_METHOD_
|
|
//fnt format used by angelcode bmfont
|
|
//http://www.angelcode.com/products/bmfont/
|
|
|
|
FileAccess *f = FileAccess::open(p_filename, FileAccess::READ);
|
|
ERR_FAIL_COND_V_MSG(!f, ERR_FILE_NOT_FOUND, "Can't open font: " + p_filename + ".");
|
|
|
|
while (true) {
|
|
String line = f->get_line();
|
|
|
|
int delimiter = line.find(" ");
|
|
String type = line.substr(0, delimiter);
|
|
int pos = delimiter + 1;
|
|
Map<String, String> keys;
|
|
|
|
while (pos < line.size() && line[pos] == ' ') {
|
|
pos++;
|
|
}
|
|
|
|
while (pos < line.size()) {
|
|
int eq = line.find("=", pos);
|
|
if (eq == -1) {
|
|
break;
|
|
}
|
|
String key = line.substr(pos, eq - pos);
|
|
int end = -1;
|
|
String value;
|
|
if (line[eq + 1] == '"') {
|
|
end = line.find("\"", eq + 2);
|
|
if (end == -1) {
|
|
break;
|
|
}
|
|
value = line.substr(eq + 2, end - 1 - eq - 1);
|
|
pos = end + 1;
|
|
} else {
|
|
end = line.find(" ", eq + 1);
|
|
if (end == -1) {
|
|
end = line.size();
|
|
}
|
|
value = line.substr(eq + 1, end - eq);
|
|
pos = end;
|
|
}
|
|
|
|
while (pos < line.size() && line[pos] == ' ') {
|
|
pos++;
|
|
}
|
|
|
|
keys[key] = value;
|
|
}
|
|
|
|
if (type == "info") {
|
|
if (keys.has("size")) {
|
|
base_size = keys["size"].to_int();
|
|
}
|
|
} else if (type == "common") {
|
|
if (keys.has("lineHeight")) {
|
|
height = keys["lineHeight"].to_int();
|
|
}
|
|
if (keys.has("base")) {
|
|
ascent = keys["base"].to_int();
|
|
}
|
|
} else if (type == "page") {
|
|
if (keys.has("file")) {
|
|
String base_dir = p_filename.get_base_dir();
|
|
String file = base_dir.plus_file(keys["file"]);
|
|
if (RenderingServer::get_singleton() != nullptr) {
|
|
Ref<Texture2D> tex = ResourceLoader::load(file);
|
|
if (tex.is_null()) {
|
|
ERR_PRINT("Can't load font texture!");
|
|
} else {
|
|
ERR_FAIL_COND_V_MSG(tex.is_null(), ERR_FILE_CANT_READ, "It's not a reference to a valid Texture object.");
|
|
textures.push_back(tex);
|
|
}
|
|
}
|
|
}
|
|
} else if (type == "char") {
|
|
Character c;
|
|
char32_t idx = 0;
|
|
if (keys.has("id")) {
|
|
idx = keys["id"].to_int();
|
|
}
|
|
if (keys.has("x")) {
|
|
c.rect.position.x = keys["x"].to_int();
|
|
}
|
|
if (keys.has("y")) {
|
|
c.rect.position.y = keys["y"].to_int();
|
|
}
|
|
if (keys.has("width")) {
|
|
c.rect.size.width = keys["width"].to_int();
|
|
}
|
|
if (keys.has("height")) {
|
|
c.rect.size.height = keys["height"].to_int();
|
|
}
|
|
if (keys.has("xoffset")) {
|
|
c.align.x = keys["xoffset"].to_int();
|
|
}
|
|
if (keys.has("yoffset")) {
|
|
c.align.y = keys["yoffset"].to_int();
|
|
}
|
|
if (keys.has("page")) {
|
|
c.texture_idx = keys["page"].to_int();
|
|
}
|
|
if (keys.has("xadvance")) {
|
|
c.advance.x = keys["xadvance"].to_int();
|
|
}
|
|
if (keys.has("yadvance")) {
|
|
c.advance.y = keys["yadvance"].to_int();
|
|
}
|
|
if (c.advance.x < 0) {
|
|
c.advance.x = c.rect.size.width + 1;
|
|
}
|
|
if (c.advance.y < 0) {
|
|
c.advance.y = c.rect.size.height + 1;
|
|
}
|
|
char_map[idx] = c;
|
|
} else if (type == "kerning") {
|
|
KerningPairKey kpk;
|
|
float k = 0.0;
|
|
if (keys.has("first")) {
|
|
kpk.A = keys["first"].to_int();
|
|
}
|
|
if (keys.has("second")) {
|
|
kpk.B = keys["second"].to_int();
|
|
}
|
|
if (keys.has("amount")) {
|
|
k = keys["amount"].to_int();
|
|
}
|
|
kerning_map[kpk] = k;
|
|
}
|
|
|
|
if (f->eof_reached()) {
|
|
break;
|
|
}
|
|
}
|
|
if (base_size == 0) {
|
|
base_size = height;
|
|
}
|
|
|
|
valid = true;
|
|
|
|
memdelete(f);
|
|
return OK;
|
|
}
|
|
|
|
Error BitmapFontDataFallback::bitmap_new(float p_height, float p_ascent, int p_base_size) {
|
|
height = p_height;
|
|
ascent = p_ascent;
|
|
|
|
base_size = p_base_size;
|
|
if (base_size == 0) {
|
|
base_size = height;
|
|
}
|
|
|
|
char_map.clear();
|
|
textures.clear();
|
|
kerning_map.clear();
|
|
|
|
valid = true;
|
|
|
|
return OK;
|
|
}
|
|
|
|
void BitmapFontDataFallback::bitmap_add_texture(const Ref<Texture> &p_texture) {
|
|
ERR_FAIL_COND(!valid);
|
|
ERR_FAIL_COND_MSG(p_texture.is_null(), "It's not a reference to a valid Texture object.");
|
|
|
|
textures.push_back(p_texture);
|
|
}
|
|
|
|
void BitmapFontDataFallback::bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
|
|
ERR_FAIL_COND(!valid);
|
|
|
|
Character chr;
|
|
chr.rect = p_rect;
|
|
chr.texture_idx = p_texture_idx;
|
|
if (p_advance < 0) {
|
|
chr.advance.x = chr.rect.size.x;
|
|
} else {
|
|
chr.advance.x = p_advance;
|
|
}
|
|
chr.align = p_align;
|
|
char_map[p_char] = chr;
|
|
}
|
|
|
|
void BitmapFontDataFallback::bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) {
|
|
ERR_FAIL_COND(!valid);
|
|
|
|
KerningPairKey kpk;
|
|
kpk.A = p_A;
|
|
kpk.B = p_B;
|
|
|
|
if (p_kerning == 0 && kerning_map.has(kpk)) {
|
|
kerning_map.erase(kpk);
|
|
} else {
|
|
kerning_map[kpk] = p_kerning;
|
|
}
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_height(int p_size) const {
|
|
ERR_FAIL_COND_V(!valid, 0.f);
|
|
return height * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_ascent(int p_size) const {
|
|
ERR_FAIL_COND_V(!valid, 0.f);
|
|
return ascent * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_descent(int p_size) const {
|
|
ERR_FAIL_COND_V(!valid, 0.f);
|
|
return (height - ascent) * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_underline_position(int p_size) const {
|
|
ERR_FAIL_COND_V(!valid, 0.f);
|
|
return 2 * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_underline_thickness(int p_size) const {
|
|
ERR_FAIL_COND_V(!valid, 0.f);
|
|
return 1 * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
void BitmapFontDataFallback::set_distance_field_hint(bool p_distance_field) {
|
|
distance_field_hint = p_distance_field;
|
|
}
|
|
|
|
bool BitmapFontDataFallback::get_distance_field_hint() const {
|
|
return distance_field_hint;
|
|
}
|
|
|
|
float BitmapFontDataFallback::get_base_size() const {
|
|
return base_size;
|
|
}
|
|
|
|
bool BitmapFontDataFallback::has_char(char32_t p_char) const {
|
|
_THREAD_SAFE_METHOD_
|
|
ERR_FAIL_COND_V(!valid, false);
|
|
return char_map.has(p_char);
|
|
}
|
|
|
|
String BitmapFontDataFallback::get_supported_chars() const {
|
|
_THREAD_SAFE_METHOD_
|
|
ERR_FAIL_COND_V(!valid, String());
|
|
String chars;
|
|
const char32_t *k = nullptr;
|
|
while ((k = char_map.next(k))) {
|
|
chars += char32_t(*k);
|
|
}
|
|
return chars;
|
|
}
|
|
|
|
Vector2 BitmapFontDataFallback::get_advance(char32_t p_char, int p_size) const {
|
|
_THREAD_SAFE_METHOD_
|
|
ERR_FAIL_COND_V(!valid, Vector2());
|
|
const Character *c = char_map.getptr(p_char);
|
|
ERR_FAIL_COND_V(c == nullptr, Vector2());
|
|
|
|
return c->advance * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
Vector2 BitmapFontDataFallback::get_kerning(char32_t p_char, char32_t p_next, int p_size) const {
|
|
_THREAD_SAFE_METHOD_
|
|
ERR_FAIL_COND_V(!valid, Vector2());
|
|
KerningPairKey kpk;
|
|
kpk.A = p_char;
|
|
kpk.B = p_next;
|
|
|
|
const Map<KerningPairKey, int>::Element *E = kerning_map.find(kpk);
|
|
if (E) {
|
|
return Vector2(-E->get() * (float(p_size) / float(base_size)), 0);
|
|
} else {
|
|
return Vector2();
|
|
}
|
|
}
|
|
|
|
Vector2 BitmapFontDataFallback::draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const {
|
|
_THREAD_SAFE_METHOD_
|
|
if (p_index == 0) {
|
|
return Vector2();
|
|
}
|
|
ERR_FAIL_COND_V(!valid, Vector2());
|
|
const Character *c = char_map.getptr(p_index);
|
|
|
|
ERR_FAIL_COND_V(c == nullptr, Vector2());
|
|
ERR_FAIL_COND_V(c->texture_idx < -1 || c->texture_idx >= textures.size(), Vector2());
|
|
if (c->texture_idx != -1) {
|
|
Point2i cpos = p_pos;
|
|
cpos += (c->align + Vector2(0, -ascent)) * (float(p_size) / float(base_size));
|
|
Size2i csize = c->rect.size * (float(p_size) / float(base_size));
|
|
if (RenderingServer::get_singleton() != nullptr) {
|
|
//if (distance_field_hint) { // Not implemented.
|
|
// RenderingServer::get_singleton()->canvas_item_set_distance_field_mode(p_canvas, true);
|
|
//}
|
|
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), textures[c->texture_idx]->get_rid(), c->rect, p_color, false, false);
|
|
//if (distance_field_hint) {
|
|
// RenderingServer::get_singleton()->canvas_item_set_distance_field_mode(p_canvas, false);
|
|
//}
|
|
}
|
|
}
|
|
|
|
return c->advance * (float(p_size) / float(base_size));
|
|
}
|
|
|
|
Vector2 BitmapFontDataFallback::draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const {
|
|
_THREAD_SAFE_METHOD_
|
|
if (p_index == 0) {
|
|
return Vector2();
|
|
}
|
|
ERR_FAIL_COND_V(!valid, Vector2());
|
|
const Character *c = char_map.getptr(p_index);
|
|
|
|
ERR_FAIL_COND_V(c == nullptr, Vector2());
|
|
ERR_FAIL_COND_V(c->texture_idx < -1 || c->texture_idx >= textures.size(), Vector2());
|
|
|
|
// Not supported, return advance for compatibility.
|
|
|
|
return c->advance * (float(p_size) / float(base_size));
|
|
}
|