diff options
Diffstat (limited to 'modules/text_server_adv/bitmap_font_adv.cpp')
| -rw-r--r-- | modules/text_server_adv/bitmap_font_adv.cpp | 585 |
1 files changed, 0 insertions, 585 deletions
diff --git a/modules/text_server_adv/bitmap_font_adv.cpp b/modules/text_server_adv/bitmap_font_adv.cpp deleted file mode 100644 index df7b42eac6..0000000000 --- a/modules/text_server_adv/bitmap_font_adv.cpp +++ /dev/null @@ -1,585 +0,0 @@ -/*************************************************************************/ -/* bitmap_font_adv.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_adv.h" - -/*************************************************************************/ -/* hb_bmp_font_t HarfBuzz Bitmap font interface */ -/*************************************************************************/ - -struct hb_bmp_font_t { - BitmapFontDataAdvanced *face = nullptr; - float font_size = 0.0; - bool unref = false; /* Whether to destroy bm_face when done. */ -}; - -static hb_bmp_font_t *_hb_bmp_font_create(BitmapFontDataAdvanced *p_face, float p_font_size, bool p_unref) { - hb_bmp_font_t *bm_font = reinterpret_cast<hb_bmp_font_t *>(calloc(1, sizeof(hb_bmp_font_t))); - - if (!bm_font) { - return nullptr; - } - - bm_font->face = p_face; - bm_font->font_size = p_font_size; - bm_font->unref = p_unref; - - return bm_font; -} - -static void _hb_bmp_font_destroy(void *data) { - hb_bmp_font_t *bm_font = reinterpret_cast<hb_bmp_font_t *>(data); - free(bm_font); -} - -static hb_bool_t hb_bmp_get_nominal_glyph(hb_font_t *font, void *font_data, hb_codepoint_t unicode, hb_codepoint_t *glyph, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return false; - } - - if (!bm_font->face->has_char(unicode)) { - if (bm_font->face->has_char(0xF000u + unicode)) { - *glyph = 0xF000u + unicode; - return true; - } else { - return false; - } - } - - *glyph = unicode; - return true; -} - -static hb_position_t hb_bmp_get_glyph_h_advance(hb_font_t *font, void *font_data, hb_codepoint_t glyph, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return 0; - } - - if (!bm_font->face->has_char(glyph)) { - return 0; - } - - return bm_font->face->get_advance(glyph, bm_font->font_size).x * 64; -} - -static hb_position_t hb_bmp_get_glyph_v_advance(hb_font_t *font, void *font_data, hb_codepoint_t glyph, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return 0; - } - - if (!bm_font->face->has_char(glyph)) { - return 0; - } - - return -bm_font->face->get_advance(glyph, bm_font->font_size).y * 64; -} - -static hb_position_t hb_bmp_get_glyph_h_kerning(hb_font_t *font, void *font_data, hb_codepoint_t left_glyph, hb_codepoint_t right_glyph, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return 0; - } - - if (!bm_font->face->has_char(left_glyph)) { - return 0; - } - - if (!bm_font->face->has_char(right_glyph)) { - return 0; - } - - return bm_font->face->get_kerning(left_glyph, right_glyph, bm_font->font_size).x * 64; -} - -static hb_bool_t hb_bmp_get_glyph_v_origin(hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return false; - } - - if (!bm_font->face->has_char(glyph)) { - return false; - } - - *x = bm_font->face->get_advance(glyph, bm_font->font_size).x * 32; - *y = bm_font->face->get_ascent(bm_font->font_size) * 64; - - return true; -} - -static hb_bool_t hb_bmp_get_glyph_extents(hb_font_t *font, void *font_data, hb_codepoint_t glyph, hb_glyph_extents_t *extents, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return false; - } - - if (!bm_font->face->has_char(glyph)) { - return false; - } - - extents->x_bearing = 0; - extents->y_bearing = 0; - extents->width = bm_font->face->get_size(glyph, bm_font->font_size).x * 64; - extents->height = bm_font->face->get_size(glyph, bm_font->font_size).y * 64; - - return true; -} - -static hb_bool_t hb_bmp_get_font_h_extents(hb_font_t *font, void *font_data, hb_font_extents_t *metrics, void *user_data) { - const hb_bmp_font_t *bm_font = reinterpret_cast<const hb_bmp_font_t *>(font_data); - - if (!bm_font->face) { - return false; - } - - metrics->ascender = bm_font->face->get_ascent(bm_font->font_size); - metrics->descender = bm_font->face->get_descent(bm_font->font_size); - metrics->line_gap = 0; - - return true; -} - -static hb_font_funcs_t *funcs = nullptr; -void hb_bmp_create_font_funcs() { - funcs = hb_font_funcs_create(); - - hb_font_funcs_set_font_h_extents_func(funcs, hb_bmp_get_font_h_extents, nullptr, nullptr); - //hb_font_funcs_set_font_v_extents_func (funcs, hb_bmp_get_font_v_extents, nullptr, nullptr); - hb_font_funcs_set_nominal_glyph_func(funcs, hb_bmp_get_nominal_glyph, nullptr, nullptr); - //hb_font_funcs_set_variation_glyph_func (funcs, hb_bmp_get_variation_glyph, nullptr, nullptr); - hb_font_funcs_set_glyph_h_advance_func(funcs, hb_bmp_get_glyph_h_advance, nullptr, nullptr); - hb_font_funcs_set_glyph_v_advance_func(funcs, hb_bmp_get_glyph_v_advance, nullptr, nullptr); - //hb_font_funcs_set_glyph_h_origin_func(funcs, hb_bmp_get_glyph_h_origin, nullptr, nullptr); - hb_font_funcs_set_glyph_v_origin_func(funcs, hb_bmp_get_glyph_v_origin, nullptr, nullptr); - hb_font_funcs_set_glyph_h_kerning_func(funcs, hb_bmp_get_glyph_h_kerning, nullptr, nullptr); - //hb_font_funcs_set_glyph_v_kerning_func (funcs, hb_bmp_get_glyph_v_kerning, nullptr, nullptr); - hb_font_funcs_set_glyph_extents_func(funcs, hb_bmp_get_glyph_extents, nullptr, nullptr); - //hb_font_funcs_set_glyph_contour_point_func (funcs, hb_bmp_get_glyph_contour_point, nullptr, nullptr); - //hb_font_funcs_set_glyph_name_func (funcs, hb_bmp_get_glyph_name, nullptr, nullptr); - //hb_font_funcs_set_glyph_from_name_func (funcs, hb_bmp_get_glyph_from_name, nullptr, nullptr); - - hb_font_funcs_make_immutable(funcs); -} - -void hb_bmp_free_font_funcs() { - if (funcs != nullptr) { - hb_font_funcs_destroy(funcs); - funcs = nullptr; - } -} - -static void _hb_bmp_font_set_funcs(hb_font_t *p_font, BitmapFontDataAdvanced *p_face, int p_size, bool p_unref) { - hb_font_set_funcs(p_font, funcs, _hb_bmp_font_create(p_face, p_size, p_unref), _hb_bmp_font_destroy); -} - -hb_font_t *hb_bmp_font_create(BitmapFontDataAdvanced *p_face, int p_size, hb_destroy_func_t p_destroy) { - hb_font_t *font; - hb_face_t *face = hb_face_create(nullptr, 0); - - font = hb_font_create(face); - hb_face_destroy(face); - _hb_bmp_font_set_funcs(font, p_face, p_size, false); - return font; -} - -/*************************************************************************/ -/* BitmapFontDataAdvanced */ -/*************************************************************************/ - -Error BitmapFontDataAdvanced::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.x = 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; - } - - if (hb_handle) { - hb_font_destroy(hb_handle); - } - hb_handle = hb_bmp_font_create(this, base_size, nullptr); - valid = true; - - memdelete(f); - return OK; -} - -Error BitmapFontDataAdvanced::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(); - if (hb_handle) { - hb_font_destroy(hb_handle); - } - hb_handle = hb_bmp_font_create(this, base_size, nullptr); - valid = true; - - return OK; -} - -void BitmapFontDataAdvanced::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 BitmapFontDataAdvanced::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 BitmapFontDataAdvanced::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 BitmapFontDataAdvanced::get_height(int p_size) const { - ERR_FAIL_COND_V(!valid, 0.f); - return height * (float(p_size) / float(base_size)); -} - -float BitmapFontDataAdvanced::get_ascent(int p_size) const { - ERR_FAIL_COND_V(!valid, 0.f); - return ascent * (float(p_size) / float(base_size)); -} - -float BitmapFontDataAdvanced::get_descent(int p_size) const { - ERR_FAIL_COND_V(!valid, 0.f); - return (height - ascent) * (float(p_size) / float(base_size)); -} - -float BitmapFontDataAdvanced::get_underline_position(int p_size) const { - ERR_FAIL_COND_V(!valid, 0.f); - return 2 * (float(p_size) / float(base_size)); -} - -float BitmapFontDataAdvanced::get_underline_thickness(int p_size) const { - ERR_FAIL_COND_V(!valid, 0.f); - return 1 * (float(p_size) / float(base_size)); -} - -void BitmapFontDataAdvanced::set_distance_field_hint(bool p_distance_field) { - distance_field_hint = p_distance_field; -} - -bool BitmapFontDataAdvanced::get_distance_field_hint() const { - return distance_field_hint; -} - -float BitmapFontDataAdvanced::get_base_size() const { - return base_size; -} - -hb_font_t *BitmapFontDataAdvanced::get_hb_handle(int p_size) { - _THREAD_SAFE_METHOD_ - ERR_FAIL_COND_V(!valid, nullptr); - return hb_handle; -} - -bool BitmapFontDataAdvanced::has_char(char32_t p_char) const { - _THREAD_SAFE_METHOD_ - ERR_FAIL_COND_V(!valid, false); - return char_map.has(p_char); -} - -String BitmapFontDataAdvanced::get_supported_chars() const { - _THREAD_SAFE_METHOD_ - ERR_FAIL_COND_V(!valid, String()); - String chars; - const uint32_t *k = nullptr; - while ((k = char_map.next(k))) { - chars += char32_t(*k); - } - return chars; -} - -Vector2 BitmapFontDataAdvanced::get_advance(uint32_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 BitmapFontDataAdvanced::get_align(uint32_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->align * (float(p_size) / float(base_size)); -} - -Vector2 BitmapFontDataAdvanced::get_size(uint32_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->rect.size * (float(p_size) / float(base_size)); -} - -float BitmapFontDataAdvanced::get_font_scale(int p_size) const { - return float(p_size) / float(base_size); -} - -Vector2 BitmapFontDataAdvanced::get_kerning(uint32_t p_char, uint32_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.f); - } else { - return Vector2(); - } -} - -Vector2 BitmapFontDataAdvanced::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 BitmapFontDataAdvanced::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)); -} - -BitmapFontDataAdvanced::~BitmapFontDataAdvanced() { - if (hb_handle) { - hb_font_destroy(hb_handle); - } -} |