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-rw-r--r--scene/resources/dynamic_font_stb.cpp524
1 files changed, 0 insertions, 524 deletions
diff --git a/scene/resources/dynamic_font_stb.cpp b/scene/resources/dynamic_font_stb.cpp
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index ccff617a16..0000000000
--- a/scene/resources/dynamic_font_stb.cpp
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@@ -1,524 +0,0 @@
-/*************************************************************************/
-/* dynamic_font_stb.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2019 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 "dynamic_font_stb.h"
-
-#ifndef FREETYPE_ENABLED
-
-#define STB_TRUETYPE_IMPLEMENTATION
-#include "core/os/file_access.h"
-
-void DynamicFontData::lock() {
-
- fr = font_data.read();
-
- if (fr.ptr() != last_data_ptr) {
-
- last_data_ptr = fr.ptr();
-
- if (!stbtt_InitFont(&info, last_data_ptr, 0)) {
- valid = false;
- } else {
- valid = true;
- }
-
- last_data_ptr = fr.ptr();
- }
-}
-
-void DynamicFontData::unlock() {
-
- fr.release();
-}
-
-void DynamicFontData::set_font_data(const PoolVector<uint8_t> &p_font) {
- //clear caches and stuff
- ERR_FAIL_COND(font_data.size());
- font_data = p_font;
-
- lock();
-
- if (valid) {
- stbtt_GetFontVMetrics(&info, &ascent, &descent, &linegap);
- descent = -descent + linegap;
-
- for (int i = 32; i < 1024; i++) {
- for (int j = 32; j < 1024; j++) {
-
- int kern = stbtt_GetCodepointKernAdvance(&info, i, j);
- if (kern != 0) {
- KerningPairKey kpk;
- kpk.A = i;
- kpk.B = j;
- kerning_map[kpk] = kern;
- }
- }
- }
- }
-
- unlock();
- //clear existing stuff
-
- ERR_FAIL_COND(!valid);
-}
-
-Ref<DynamicFontAtSize> DynamicFontData::_get_dynamic_font_at_size(int p_size) {
-
- ERR_FAIL_COND_V(!valid, Ref<DynamicFontAtSize>());
-
- if (size_cache.has(p_size)) {
- return Ref<DynamicFontAtSize>(size_cache[p_size]);
- }
-
- Ref<DynamicFontAtSize> dfas;
- dfas.instance();
-
- dfas->font = Ref<DynamicFontData>(this);
-
- size_cache[p_size] = dfas.ptr();
-
- dfas->size = p_size;
-
- lock();
-
- dfas->scale = stbtt_ScaleForPixelHeight(&info, p_size);
-
- unlock();
-
- return dfas;
-}
-
-DynamicFontData::DynamicFontData() {
- last_data_ptr = NULL;
- valid = false;
-}
-
-DynamicFontData::~DynamicFontData() {
-}
-
-////////////////////
-
-float DynamicFontAtSize::get_height() const {
-
- return (font->ascent + font->descent) * scale;
-}
-
-float DynamicFontAtSize::get_ascent() const {
-
- return font->ascent * scale;
-}
-float DynamicFontAtSize::get_descent() const {
-
- return font->descent * scale;
-}
-
-Size2 DynamicFontAtSize::get_char_size(CharType p_char, CharType p_next) const {
-
- const_cast<DynamicFontAtSize *>(this)->_update_char(p_char);
-
- const Character *c = char_map.getptr(p_char);
- ERR_FAIL_COND_V(!c, Size2());
-
- Size2 ret(c->advance, get_height());
-
- if (p_next) {
- DynamicFontData::KerningPairKey kpk;
- kpk.A = p_char;
- kpk.B = p_next;
-
- const Map<DynamicFontData::KerningPairKey, int>::Element *K = font->kerning_map.find(kpk);
- if (K) {
- ret.x += K->get() * scale;
- }
- }
-
- return ret;
-}
-
-float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, bool p_outline) const {
-
- const_cast<DynamicFontAtSize *>(this)->_update_char(p_char);
-
- const Character *c = char_map.getptr(p_char);
-
- if (!c) {
- return 0;
- }
-
- if (!p_outline) {
- Point2 cpos = p_pos;
- cpos.x += c->h_align;
- cpos.y -= get_ascent();
- cpos.y += c->v_align;
- ERR_FAIL_COND_V(c->texture_idx < -1 || c->texture_idx >= textures.size(), 0);
- if (c->texture_idx != -1)
- VisualServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas_item, Rect2(cpos, c->rect.size), textures[c->texture_idx].texture->get_rid(), c->rect, p_modulate);
- }
-
- //textures[c->texture_idx].texture->draw(p_canvas_item,Vector2());
-
- float ret = c->advance;
- if (p_next) {
- DynamicFontData::KerningPairKey kpk;
- kpk.A = p_char;
- kpk.B = p_next;
-
- const Map<DynamicFontData::KerningPairKey, int>::Element *K = font->kerning_map.find(kpk);
- if (K) {
- ret += K->get() * scale;
- }
- }
-
- return ret;
-}
-
-void DynamicFontAtSize::_update_char(CharType p_char) {
-
- if (char_map.has(p_char))
- return;
-
- font->lock();
-
- int w, h, xofs, yofs;
- unsigned char *cpbitmap = stbtt_GetCodepointBitmap(&font->info, scale, scale, p_char, &w, &h, &xofs, &yofs);
-
- if (!cpbitmap) {
- //no glyph
-
- int advance;
- stbtt_GetCodepointHMetrics(&font->info, p_char, &advance, 0);
- Character ch;
- ch.texture_idx = -1;
- ch.advance = advance * scale;
- ch.h_align = 0;
- ch.v_align = 0;
-
- char_map[p_char] = ch;
-
- font->unlock();
-
- return;
- }
-
- int mw = w + rect_margin * 2;
- int mh = h + rect_margin * 2;
-
- if (mw > 4096 || mh > 4096) {
-
- stbtt_FreeBitmap(cpbitmap, NULL);
- font->unlock();
- ERR_FAIL_COND(mw > 4096);
- ERR_FAIL_COND(mh > 4096);
- }
-
- //find a texture to fit this...
-
- int tex_index = -1;
- int tex_x = 0;
- int tex_y = 0;
-
- for (int i = 0; i < textures.size(); i++) {
-
- CharTexture &ct = textures[i];
-
- if (mw > ct.texture_size || mh > ct.texture_size) //too big for this texture
- continue;
-
- tex_y = 0x7FFFFFFF;
- tex_x = 0;
-
- for (int j = 0; j < ct.texture_size - mw; j++) {
-
- int max_y = 0;
-
- for (int k = j; k < j + mw; k++) {
-
- int y = ct.offsets[k];
- if (y > max_y)
- max_y = y;
- }
-
- if (max_y < tex_y) {
- tex_y = max_y;
- tex_x = j;
- }
- }
-
- if (tex_y == 0x7FFFFFFF || tex_y + mh > ct.texture_size)
- continue; //fail, could not fit it here
-
- tex_index = i;
- break;
- }
-
- if (tex_index == -1) {
- //could not find texture to fit, create one
- tex_x = 0;
- tex_y = 0;
-
- int texsize = MAX(size * 8, 256);
- if (mw > texsize)
- texsize = mw; //special case, adapt to it?
- if (mh > texsize)
- texsize = mh; //special case, adapt to it?
-
- texsize = next_power_of_2(texsize);
-
- texsize = MIN(texsize, 4096);
-
- CharTexture tex;
- tex.texture_size = texsize;
- tex.imgdata.resize(texsize * texsize * 2); //grayscale alpha
-
- {
- //zero texture
- PoolVector<uint8_t>::Write w = tex.imgdata.write();
- ERR_FAIL_COND(texsize * texsize * 2 > tex.imgdata.size());
- for (int i = 0; i < texsize * texsize * 2; i++) {
- w[i] = 0;
- }
- }
- tex.offsets.resize(texsize);
- for (int i = 0; i < texsize; i++) //zero offsets
- tex.offsets[i] = 0;
-
- textures.push_back(tex);
- tex_index = textures.size() - 1;
- }
-
- //fit character in char texture
-
- CharTexture &tex = textures[tex_index];
-
- {
- PoolVector<uint8_t>::Write wr = tex.imgdata.write();
-
- for (int i = 0; i < h; i++) {
- for (int j = 0; j < w; j++) {
-
- int ofs = ((i + tex_y + rect_margin) * tex.texture_size + j + tex_x + rect_margin) * 2;
- ERR_FAIL_COND(ofs >= tex.imgdata.size());
- wr[ofs + 0] = 255; //grayscale as 1
- wr[ofs + 1] = cpbitmap[i * w + j]; //alpha as 0
- }
- }
- }
-
- //blit to image and texture
- {
- Ref<Image> img = memnew(Image(tex.texture_size, tex.texture_size, 0, Image::FORMAT_LA8, tex.imgdata));
-
- if (tex.texture.is_null()) {
- tex.texture.instance();
- tex.texture->create_from_image(img, Texture::FLAG_FILTER);
- } else {
- tex.texture->set_data(img); //update
- }
- }
-
- // update height array
-
- for (int k = tex_x; k < tex_x + mw; k++) {
-
- tex.offsets[k] = tex_y + mh;
- }
-
- int advance;
- stbtt_GetCodepointHMetrics(&font->info, p_char, &advance, 0);
-
- Character chr;
- chr.h_align = xofs;
- chr.v_align = yofs + get_ascent();
- chr.advance = advance * scale;
- chr.texture_idx = tex_index;
-
- chr.rect = Rect2(tex_x + rect_margin, tex_y + rect_margin, w, h);
-
- char_map[p_char] = chr;
-
- stbtt_FreeBitmap(cpbitmap, NULL);
-
- font->unlock();
-}
-
-DynamicFontAtSize::DynamicFontAtSize() {
-
- rect_margin = 1;
-}
-
-DynamicFontAtSize::~DynamicFontAtSize() {
-
- ERR_FAIL_COND(!font.ptr());
- font->size_cache.erase(size);
-}
-
-/////////////////////////
-
-void DynamicFont::_bind_methods() {
-
- ClassDB::bind_method(D_METHOD("set_font_data", "data"), &DynamicFont::set_font_data);
- ClassDB::bind_method(D_METHOD("get_font_data"), &DynamicFont::get_font_data);
-
- ClassDB::bind_method(D_METHOD("set_size", "data"), &DynamicFont::set_size);
- ClassDB::bind_method(D_METHOD("get_size"), &DynamicFont::get_size);
-
- ADD_PROPERTY(PropertyInfo(Variant::INT, "font/size"), "set_size", "get_size");
- ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "font/font", PROPERTY_HINT_RESOURCE_TYPE, "DynamicFontData"), "set_font_data", "get_font_data");
-}
-
-void DynamicFont::set_font_data(const Ref<DynamicFontData> &p_data) {
-
- data = p_data;
- data_at_size = data->_get_dynamic_font_at_size(size);
-}
-
-Ref<DynamicFontData> DynamicFont::get_font_data() const {
-
- return data;
-}
-
-void DynamicFont::set_size(int p_size) {
-
- if (size == p_size)
- return;
- size = p_size;
- ERR_FAIL_COND(p_size < 1);
- if (!data.is_valid())
- return;
- data_at_size = data->_get_dynamic_font_at_size(size);
-}
-int DynamicFont::get_size() const {
-
- return size;
-}
-
-float DynamicFont::get_height() const {
-
- if (!data_at_size.is_valid())
- return 1;
-
- return data_at_size->get_height();
-}
-
-float DynamicFont::get_ascent() const {
-
- if (!data_at_size.is_valid())
- return 1;
-
- return data_at_size->get_ascent();
-}
-
-float DynamicFont::get_descent() const {
-
- if (!data_at_size.is_valid())
- return 1;
-
- return data_at_size->get_descent();
-}
-
-Size2 DynamicFont::get_char_size(CharType p_char, CharType p_next) const {
-
- if (!data_at_size.is_valid())
- return Size2(1, 1);
-
- return data_at_size->get_char_size(p_char, p_next);
-}
-
-bool DynamicFont::is_distance_field_hint() const {
-
- return false;
-}
-
-float DynamicFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, bool p_outline) const {
-
- if (!data_at_size.is_valid())
- return 0;
-
- return data_at_size->draw_char(p_canvas_item, p_pos, p_char, p_next, p_modulate, p_outline);
-}
-
-DynamicFont::DynamicFont() {
-
- size = 16;
-}
-
-DynamicFont::~DynamicFont() {
-}
-
-/////////////////////////
-
-RES ResourceFormatLoaderDynamicFont::load(const String &p_path, const String &p_original_path, Error *r_error) {
-
- if (r_error)
- *r_error = ERR_FILE_CANT_OPEN;
-
- FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
- ERR_FAIL_COND_V(!f, RES());
-
- PoolVector<uint8_t> data;
-
- data.resize(f->get_len());
-
- ERR_FAIL_COND_V(data.size() == 0, RES());
-
- {
- PoolVector<uint8_t>::Write w = data.write();
- f->get_buffer(w.ptr(), data.size());
- }
-
- Ref<DynamicFontData> dfd;
- dfd.instance();
- dfd->set_font_data(data);
-
- if (r_error)
- *r_error = OK;
-
- return dfd;
-}
-
-void ResourceFormatLoaderDynamicFont::get_recognized_extensions(List<String> *p_extensions) const {
-
- p_extensions->push_back("ttf");
-}
-
-bool ResourceFormatLoaderDynamicFont::handles_type(const String &p_type) const {
-
- return (p_type == "DynamicFontData");
-}
-
-String ResourceFormatLoaderDynamicFont::get_resource_type(const String &p_path) const {
-
- String el = p_path.get_extension().to_lower();
- if (el == "ttf")
- return "DynamicFontData";
- return "";
-}
-
-#endif
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