Merge pull request #46045 from bruvzg/text_server_bmp_create

[TextServer] Restores bitmap font dynamic construction functions.

3 files changed, 73 insertions, 32 deletions

diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp
index 943176537b..a94209c75f 100644
--- a/scene/resources/default_theme/default_theme.cpp
+++ b/scene/resources/default_theme/default_theme.cpp
@@ -128,6 +128,38 @@ static Ref<Texture2D> flip_icon(Ref<Texture2D> p_texture, bool p_flip_y = false,
 	return texture;
 }
 
+static Ref<FontData> make_font(int p_height, int p_ascent, int p_charcount, const int *p_char_rects, int p_kerning_count, const int *p_kernings, int p_w, int p_h, const unsigned char *p_img) {
+	Ref<FontData> font(memnew(FontData));
+	font->new_bitmap(p_height, p_ascent, p_height);
+
+	Ref<Image> image = memnew(Image(p_img));
+	Ref<ImageTexture> tex = memnew(ImageTexture);
+	tex->create_from_image(image);
+
+	font->bitmap_add_texture(tex);
+
+	for (int i = 0; i < p_charcount; i++) {
+		const int *c = &p_char_rects[i * 8];
+
+		int chr = c[0];
+		Rect2 frect;
+		frect.position.x = c[1];
+		frect.position.y = c[2];
+		frect.size.x = c[3];
+		frect.size.y = c[4];
+		Point2 align(c[6], c[5]);
+		int advance = c[7];
+
+		font->bitmap_add_char(chr, 0, frect, align, advance);
+	}
+
+	for (int i = 0; i < p_kerning_count; i++) {
+		font->bitmap_add_kerning_pair(p_kernings[i * 3 + 0], p_kernings[i * 3 + 1], p_kernings[i * 3 + 2]);
+	}
+
+	return font;
+}
+
 static Ref<StyleBox> make_empty_stylebox(float p_margin_left = -1, float p_margin_top = -1, float p_margin_right = -1, float p_margin_bottom = -1) {
 	Ref<StyleBox> style(memnew(StyleBoxEmpty));
 
@@ -989,41 +1021,11 @@ void make_default_theme(bool p_hidpi, Ref<Font> p_font) {
 	if (p_font.is_valid()) {
 		default_font = p_font;
 	} else if (p_hidpi) {
-		TextServer::BitmapFontData data;
-		data.height = _hidpi_font_height;
-		data.ascent = _hidpi_font_ascent;
-		data.charcount = _hidpi_font_charcount;
-		data.char_rects = &_hidpi_font_charrects[0][0];
-		data.kerning_count = _hidpi_font_kerning_pair_count;
-		data.kernings = &_hidpi_font_kerning_pairs[0][0];
-		data.w = _hidpi_font_img_width;
-		data.h = _hidpi_font_img_height;
-		data.img = _hidpi_font_img_data;
-
-		Ref<FontData> font_data;
-		font_data.instance();
-		font_data->load_memory((const uint8_t *)&data, sizeof(data), "fnt");
-		default_font_size = font_data->get_base_size();
-
+		Ref<FontData> font_data = make_font(_hidpi_font_height, _hidpi_font_ascent, _hidpi_font_charcount, &_hidpi_font_charrects[0][0], _hidpi_font_kerning_pair_count, &_hidpi_font_kerning_pairs[0][0], _hidpi_font_img_width, _hidpi_font_img_height, _hidpi_font_img_data);
 		default_font.instance();
 		default_font->add_data(font_data);
 	} else {
-		TextServer::BitmapFontData data;
-		data.height = _lodpi_font_height;
-		data.ascent = _lodpi_font_ascent;
-		data.charcount = _lodpi_font_charcount;
-		data.char_rects = &_lodpi_font_charrects[0][0];
-		data.kerning_count = _lodpi_font_kerning_pair_count;
-		data.kernings = &_lodpi_font_kerning_pairs[0][0];
-		data.w = _lodpi_font_img_width;
-		data.h = _lodpi_font_img_height;
-		data.img = _lodpi_font_img_data;
-
-		Ref<FontData> font_data;
-		font_data.instance();
-		font_data->load_memory((const uint8_t *)&data, sizeof(data), "fnt");
-		default_font_size = font_data->get_base_size();
-
+		Ref<FontData> font_data = make_font(_lodpi_font_height, _lodpi_font_ascent, _lodpi_font_charcount, &_lodpi_font_charrects[0][0], _lodpi_font_kerning_pair_count, &_lodpi_font_kerning_pairs[0][0], _lodpi_font_img_width, _lodpi_font_img_height, _lodpi_font_img_data);
 		default_font.instance();
 		default_font->add_data(font_data);
 	}
diff --git a/scene/resources/font.cpp b/scene/resources/font.cpp
index 702f2ed1c8..6f87c524d8 100644
--- a/scene/resources/font.cpp
+++ b/scene/resources/font.cpp
@@ -39,6 +39,11 @@
 void FontData::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("load_resource", "filename", "base_size"), &FontData::load_resource, DEFVAL(16));
 	ClassDB::bind_method(D_METHOD("load_memory", "data", "type", "base_size"), &FontData::_load_memory, DEFVAL(16));
+	ClassDB::bind_method(D_METHOD("new_bitmap", "height", "ascent", "base_size"), &FontData::new_bitmap);
+
+	ClassDB::bind_method(D_METHOD("bitmap_add_texture", "texture"), &FontData::bitmap_add_texture);
+	ClassDB::bind_method(D_METHOD("bitmap_add_char", "char", "texture_idx", "rect", "align", "advance"), &FontData::bitmap_add_char);
+	ClassDB::bind_method(D_METHOD("bitmap_add_kerning_pair", "A", "B", "kerning"), &FontData::bitmap_add_kerning_pair);
 
 	ClassDB::bind_method(D_METHOD("set_data_path", "path"), &FontData::set_data_path);
 	ClassDB::bind_method(D_METHOD("get_data_path"), &FontData::get_data_path);
@@ -229,6 +234,34 @@ void FontData::load_memory(const uint8_t *p_data, size_t p_size, const String &p
 	emit_changed();
 }
 
+void FontData::new_bitmap(float p_height, float p_ascent, int p_base_size) {
+	if (rid != RID()) {
+		TS->free(rid);
+	}
+	rid = TS->create_font_bitmap(p_height, p_ascent, p_base_size);
+	path = TTR("(Bitmap: " + String::num_int64(rid.get_id(), 16, true) + ")");
+	base_size = TS->font_get_base_size(rid);
+	emit_changed();
+}
+
+void FontData::bitmap_add_texture(const Ref<Texture> &p_texture) {
+	if (rid != RID()) {
+		TS->font_bitmap_add_texture(rid, p_texture);
+	}
+}
+
+void FontData::bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
+	if (rid != RID()) {
+		TS->font_bitmap_add_char(rid, p_char, p_texture_idx, p_rect, p_align, p_advance);
+	}
+}
+
+void FontData::bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) {
+	if (rid != RID()) {
+		TS->font_bitmap_add_kerning_pair(rid, p_A, p_B, p_kerning);
+	}
+}
+
 void FontData::set_data_path(const String &p_path) {
 	load_resource(p_path, base_size);
 }
diff --git a/scene/resources/font.h b/scene/resources/font.h
index 56b5acde1a..200373aa8c 100644
--- a/scene/resources/font.h
+++ b/scene/resources/font.h
@@ -69,6 +69,12 @@ public:
 	void load_memory(const uint8_t *p_data, size_t p_size, const String &p_type, int p_base_size = 16);
 	void _load_memory(const PackedByteArray &p_data, const String &p_type, int p_base_size = 16);
 
+	void new_bitmap(float p_height, float p_ascent, int p_base_size = 16);
+
+	void bitmap_add_texture(const Ref<Texture> &p_texture);
+	void bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance);
+	void bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning);
+
 	void set_data_path(const String &p_path);
 	String get_data_path() const;