diff options
author | bruvzg <7645683+bruvzg@users.noreply.github.com> | 2021-11-09 10:41:45 +0200 |
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committer | bruvzg <7645683+bruvzg@users.noreply.github.com> | 2021-11-09 10:41:45 +0200 |
commit | 294e48ae58b14d7835000f0f78ed2f24bf802c37 (patch) | |
tree | 1b80a802fb3ef1f73098b0ebcf84634932a85bd3 /scene/resources | |
parent | 9444a3f01d3a8c4f49ddf24e3acc65b399ee0609 (diff) |
Move BMFont parser code from importer to the FontData to allow loading bitmap fonts in the runtime (without importing).
Diffstat (limited to 'scene/resources')
-rw-r--r-- | scene/resources/font.cpp | 759 | ||||
-rw-r--r-- | scene/resources/font.h | 9 |
2 files changed, 768 insertions, 0 deletions
diff --git a/scene/resources/font.cpp b/scene/resources/font.cpp index d9de47afc7..270521d40e 100644 --- a/scene/resources/font.cpp +++ b/scene/resources/font.cpp @@ -30,6 +30,7 @@ #include "font.h" +#include "core/io/image_loader.h" #include "core/io/resource_loader.h" #include "core/string/translation.h" #include "core/templates/hashfuncs.h" @@ -64,6 +65,9 @@ _FORCE_INLINE_ void FontData::_ensure_rid(int p_cache_index) const { } void FontData::_bind_methods() { + ClassDB::bind_method(D_METHOD("load_bitmap_font", "path"), &FontData::load_bitmap_font); + ClassDB::bind_method(D_METHOD("load_dynamic_font", "path"), &FontData::load_dynamic_font); + ClassDB::bind_method(D_METHOD("set_data", "data"), &FontData::set_data); ClassDB::bind_method(D_METHOD("get_data"), &FontData::get_data); @@ -498,11 +502,766 @@ void FontData::reset_state() { hinting = TextServer::HINTING_LIGHT; msdf_pixel_range = 14; msdf_size = 128; + fixed_size = 0; oversampling = 0.f; } +void FontData::_convert_packed_8bit(Ref<Image> &p_source, int p_page, int p_sz) { + int w = p_source->get_width(); + int h = p_source->get_height(); + + PackedByteArray imgdata = p_source->get_data(); + const uint8_t *r = imgdata.ptr(); + + PackedByteArray imgdata_r; + imgdata_r.resize(w * h * 2); + uint8_t *wr = imgdata_r.ptrw(); + + PackedByteArray imgdata_g; + imgdata_g.resize(w * h * 2); + uint8_t *wg = imgdata_g.ptrw(); + + PackedByteArray imgdata_b; + imgdata_b.resize(w * h * 2); + uint8_t *wb = imgdata_b.ptrw(); + + PackedByteArray imgdata_a; + imgdata_a.resize(w * h * 2); + uint8_t *wa = imgdata_a.ptrw(); + + for (int i = 0; i < h; i++) { + for (int j = 0; j < w; j++) { + int ofs_src = (i * w + j) * 4; + int ofs_dst = (i * w + j) * 2; + wr[ofs_dst + 0] = 255; + wr[ofs_dst + 1] = r[ofs_src + 0]; + wg[ofs_dst + 0] = 255; + wg[ofs_dst + 1] = r[ofs_src + 1]; + wb[ofs_dst + 0] = 255; + wb[ofs_dst + 1] = r[ofs_src + 2]; + wa[ofs_dst + 0] = 255; + wa[ofs_dst + 1] = r[ofs_src + 3]; + } + } + Ref<Image> img_r = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_r)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 0, img_r); + Ref<Image> img_g = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_g)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 1, img_g); + Ref<Image> img_b = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_b)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 2, img_b); + Ref<Image> img_a = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_a)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 3, img_a); +} + +void FontData::_convert_packed_4bit(Ref<Image> &p_source, int p_page, int p_sz) { + int w = p_source->get_width(); + int h = p_source->get_height(); + + PackedByteArray imgdata = p_source->get_data(); + const uint8_t *r = imgdata.ptr(); + + PackedByteArray imgdata_r; + imgdata_r.resize(w * h * 2); + uint8_t *wr = imgdata_r.ptrw(); + + PackedByteArray imgdata_g; + imgdata_g.resize(w * h * 2); + uint8_t *wg = imgdata_g.ptrw(); + + PackedByteArray imgdata_b; + imgdata_b.resize(w * h * 2); + uint8_t *wb = imgdata_b.ptrw(); + + PackedByteArray imgdata_a; + imgdata_a.resize(w * h * 2); + uint8_t *wa = imgdata_a.ptrw(); + + PackedByteArray imgdata_ro; + imgdata_ro.resize(w * h * 2); + uint8_t *wro = imgdata_ro.ptrw(); + + PackedByteArray imgdata_go; + imgdata_go.resize(w * h * 2); + uint8_t *wgo = imgdata_go.ptrw(); + + PackedByteArray imgdata_bo; + imgdata_bo.resize(w * h * 2); + uint8_t *wbo = imgdata_bo.ptrw(); + + PackedByteArray imgdata_ao; + imgdata_ao.resize(w * h * 2); + uint8_t *wao = imgdata_ao.ptrw(); + + for (int i = 0; i < h; i++) { + for (int j = 0; j < w; j++) { + int ofs_src = (i * w + j) * 4; + int ofs_dst = (i * w + j) * 2; + wr[ofs_dst + 0] = 255; + wro[ofs_dst + 0] = 255; + if (r[ofs_src + 0] > 0x0F) { + wr[ofs_dst + 1] = (r[ofs_src + 0] - 0x0F) * 2; + wro[ofs_dst + 1] = 0; + } else { + wr[ofs_dst + 1] = 0; + wro[ofs_dst + 1] = r[ofs_src + 0] * 2; + } + wg[ofs_dst + 0] = 255; + wgo[ofs_dst + 0] = 255; + if (r[ofs_src + 1] > 0x0F) { + wg[ofs_dst + 1] = (r[ofs_src + 1] - 0x0F) * 2; + wgo[ofs_dst + 1] = 0; + } else { + wg[ofs_dst + 1] = 0; + wgo[ofs_dst + 1] = r[ofs_src + 1] * 2; + } + wb[ofs_dst + 0] = 255; + wbo[ofs_dst + 0] = 255; + if (r[ofs_src + 2] > 0x0F) { + wb[ofs_dst + 1] = (r[ofs_src + 2] - 0x0F) * 2; + wbo[ofs_dst + 1] = 0; + } else { + wb[ofs_dst + 1] = 0; + wbo[ofs_dst + 1] = r[ofs_src + 2] * 2; + } + wa[ofs_dst + 0] = 255; + wao[ofs_dst + 0] = 255; + if (r[ofs_src + 3] > 0x0F) { + wa[ofs_dst + 1] = (r[ofs_src + 3] - 0x0F) * 2; + wao[ofs_dst + 1] = 0; + } else { + wa[ofs_dst + 1] = 0; + wao[ofs_dst + 1] = r[ofs_src + 3] * 2; + } + } + } + Ref<Image> img_r = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_r)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 0, img_r); + Ref<Image> img_g = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_g)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 1, img_g); + Ref<Image> img_b = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_b)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 2, img_b); + Ref<Image> img_a = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_a)); + set_texture_image(0, Vector2i(p_sz, 0), p_page * 4 + 3, img_a); + + Ref<Image> img_ro = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_ro)); + set_texture_image(0, Vector2i(p_sz, 1), p_page * 4 + 0, img_ro); + Ref<Image> img_go = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_go)); + set_texture_image(0, Vector2i(p_sz, 1), p_page * 4 + 1, img_go); + Ref<Image> img_bo = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_bo)); + set_texture_image(0, Vector2i(p_sz, 1), p_page * 4 + 2, img_bo); + Ref<Image> img_ao = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_ao)); + set_texture_image(0, Vector2i(p_sz, 1), p_page * 4 + 3, img_ao); +} + +void FontData::_convert_rgba_4bit(Ref<Image> &p_source, int p_page, int p_sz) { + int w = p_source->get_width(); + int h = p_source->get_height(); + + PackedByteArray imgdata = p_source->get_data(); + const uint8_t *r = imgdata.ptr(); + + PackedByteArray imgdata_g; + imgdata_g.resize(w * h * 4); + uint8_t *wg = imgdata_g.ptrw(); + + PackedByteArray imgdata_o; + imgdata_o.resize(w * h * 4); + uint8_t *wo = imgdata_o.ptrw(); + + for (int i = 0; i < h; i++) { + for (int j = 0; j < w; j++) { + int ofs = (i * w + j) * 4; + + if (r[ofs + 0] > 0x7F) { + wg[ofs + 0] = r[ofs + 0]; + wo[ofs + 0] = 0; + } else { + wg[ofs + 0] = 0; + wo[ofs + 0] = r[ofs + 0] * 2; + } + if (r[ofs + 1] > 0x7F) { + wg[ofs + 1] = r[ofs + 1]; + wo[ofs + 1] = 0; + } else { + wg[ofs + 1] = 0; + wo[ofs + 1] = r[ofs + 1] * 2; + } + if (r[ofs + 2] > 0x7F) { + wg[ofs + 2] = r[ofs + 2]; + wo[ofs + 2] = 0; + } else { + wg[ofs + 2] = 0; + wo[ofs + 2] = r[ofs + 2] * 2; + } + if (r[ofs + 3] > 0x7F) { + wg[ofs + 3] = r[ofs + 3]; + wo[ofs + 3] = 0; + } else { + wg[ofs + 3] = 0; + wo[ofs + 3] = r[ofs + 3] * 2; + } + } + } + Ref<Image> img_g = memnew(Image(w, h, 0, Image::FORMAT_RGBA8, imgdata_g)); + set_texture_image(0, Vector2i(p_sz, 0), p_page, img_g); + + Ref<Image> img_o = memnew(Image(w, h, 0, Image::FORMAT_RGBA8, imgdata_o)); + set_texture_image(0, Vector2i(p_sz, 1), p_page, img_o); +} + +void FontData::_convert_mono_8bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol) { + int w = p_source->get_width(); + int h = p_source->get_height(); + + PackedByteArray imgdata = p_source->get_data(); + const uint8_t *r = imgdata.ptr(); + + int size = 4; + if (p_source->get_format() == Image::FORMAT_L8) { + size = 1; + p_ch = 0; + } + + PackedByteArray imgdata_g; + imgdata_g.resize(w * h * 2); + uint8_t *wg = imgdata_g.ptrw(); + + for (int i = 0; i < h; i++) { + for (int j = 0; j < w; j++) { + int ofs_src = (i * w + j) * size; + int ofs_dst = (i * w + j) * 2; + wg[ofs_dst + 0] = 255; + wg[ofs_dst + 1] = r[ofs_src + p_ch]; + } + } + Ref<Image> img_g = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_g)); + set_texture_image(0, Vector2i(p_sz, p_ol), p_page, img_g); +} + +void FontData::_convert_mono_4bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol) { + int w = p_source->get_width(); + int h = p_source->get_height(); + + PackedByteArray imgdata = p_source->get_data(); + const uint8_t *r = imgdata.ptr(); + + int size = 4; + if (p_source->get_format() == Image::FORMAT_L8) { + size = 1; + p_ch = 0; + } + + PackedByteArray imgdata_g; + imgdata_g.resize(w * h * 2); + uint8_t *wg = imgdata_g.ptrw(); + + PackedByteArray imgdata_o; + imgdata_o.resize(w * h * 2); + uint8_t *wo = imgdata_o.ptrw(); + + for (int i = 0; i < h; i++) { + for (int j = 0; j < w; j++) { + int ofs_src = (i * w + j) * size; + int ofs_dst = (i * w + j) * 2; + wg[ofs_dst + 0] = 255; + wo[ofs_dst + 0] = 255; + if (r[ofs_src + p_ch] > 0x7F) { + wg[ofs_dst + 1] = r[ofs_src + p_ch]; + wo[ofs_dst + 1] = 0; + } else { + wg[ofs_dst + 1] = 0; + wo[ofs_dst + 1] = r[ofs_src + p_ch] * 2; + } + } + } + Ref<Image> img_g = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_g)); + set_texture_image(0, Vector2i(p_sz, 0), p_page, img_g); + + Ref<Image> img_o = memnew(Image(w, h, 0, Image::FORMAT_LA8, imgdata_o)); + set_texture_image(0, Vector2i(p_sz, p_ol), p_page, img_o); +} + /*************************************************************************/ +Error FontData::load_bitmap_font(const String &p_path) { + reset_state(); + + antialiased = false; + msdf = false; + force_autohinter = false; + hinting = TextServer::HINTING_NONE; + oversampling = 1.0f; + + FileAccessRef f = FileAccess::open(p_path, FileAccess::READ); + if (f == nullptr) { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Cannot open font from file ") + "\"" + p_path + "\"."); + } + + int base_size = 16; + int height = 0; + int ascent = 0; + int outline = 0; + uint32_t st_flags = 0; + String font_name; + + bool packed = false; + uint8_t ch[4] = { 0, 0, 0, 0 }; // RGBA + int first_gl_ch = -1; + int first_ol_ch = -1; + int first_cm_ch = -1; + + unsigned char magic[4]; + f->get_buffer((unsigned char *)&magic, 4); + if (magic[0] == 'B' && magic[1] == 'M' && magic[2] == 'F') { + // Binary BMFont file. + ERR_FAIL_COND_V_MSG(magic[3] != 3, ERR_CANT_CREATE, vformat(TTR("Version %d of BMFont is not supported."), (int)magic[3])); + + uint8_t block_type = f->get_8(); + uint32_t block_size = f->get_32(); + while (!f->eof_reached()) { + uint64_t off = f->get_position(); + switch (block_type) { + case 1: /* info */ { + ERR_FAIL_COND_V_MSG(block_size < 15, ERR_CANT_CREATE, TTR("Invalid BMFont info block size.")); + base_size = f->get_16(); + uint8_t flags = f->get_8(); + ERR_FAIL_COND_V_MSG(flags & 0x02, ERR_CANT_CREATE, TTR("Non-unicode version of BMFont is not supported.")); + if (flags & (1 << 3)) { + st_flags |= TextServer::FONT_BOLD; + } + if (flags & (1 << 2)) { + st_flags |= TextServer::FONT_ITALIC; + } + f->get_8(); // non-unicode charset, skip + f->get_16(); // stretch_h, skip + f->get_8(); // aa, skip + f->get_32(); // padding, skip + f->get_16(); // spacing, skip + outline = f->get_8(); + // font name + PackedByteArray name_data; + name_data.resize(block_size - 14); + f->get_buffer(name_data.ptrw(), block_size - 14); + font_name = String::utf8((const char *)name_data.ptr(), block_size - 14); + set_fixed_size(base_size); + } break; + case 2: /* common */ { + ERR_FAIL_COND_V_MSG(block_size != 15, ERR_CANT_CREATE, TTR("Invalid BMFont common block size.")); + height = f->get_16(); + ascent = f->get_16(); + f->get_32(); // scale, skip + f->get_16(); // pages, skip + uint8_t flags = f->get_8(); + packed = (flags & 0x01); + ch[3] = f->get_8(); + ch[0] = f->get_8(); + ch[1] = f->get_8(); + ch[2] = f->get_8(); + for (int i = 0; i < 4; i++) { + if (ch[i] == 0 && first_gl_ch == -1) { + first_gl_ch = i; + } + if (ch[i] == 1 && first_ol_ch == -1) { + first_ol_ch = i; + } + if (ch[i] == 2 && first_cm_ch == -1) { + first_cm_ch = i; + } + } + } break; + case 3: /* pages */ { + int page = 0; + CharString cs; + char32_t c = f->get_8(); + while (!f->eof_reached() && f->get_position() <= off + block_size) { + if (c == '\0') { + String base_dir = p_path.get_base_dir(); + String file = base_dir.plus_file(String::utf8(cs.ptr(), cs.length())); + if (RenderingServer::get_singleton() != nullptr) { + Ref<Image> img; + img.instantiate(); + Error err = ImageLoader::load_image(file, img); + ERR_FAIL_COND_V_MSG(err != OK, ERR_FILE_CANT_READ, TTR("Can't load font texture: ") + "\"" + file + "\"."); + + if (packed) { + if (ch[3] == 0) { // 4 x 8 bit monochrome, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_packed_8bit(img, page, base_size); + } else if ((ch[3] == 2) && (outline > 0)) { // 4 x 4 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_packed_4bit(img, page, base_size); + } else { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Unsupported BMFont texture format.")); + } + } else { + if ((ch[0] == 0) && (ch[1] == 0) && (ch[2] == 0) && (ch[3] == 0)) { // RGBA8 color, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + set_texture_image(0, Vector2i(base_size, 0), page, img); + } else if ((ch[0] == 2) && (ch[1] == 2) && (ch[2] == 2) && (ch[3] == 2) && (outline > 0)) { // RGBA4 color, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_rgba_4bit(img, page, base_size); + } else if ((first_gl_ch >= 0) && (first_ol_ch >= 0) && (outline > 0)) { // 1 x 8 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_8bit(img, page, first_gl_ch, base_size, 0); + _convert_mono_8bit(img, page, first_ol_ch, base_size, 1); + } else if ((first_cm_ch >= 0) && (outline > 0)) { // 1 x 4 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_4bit(img, page, first_cm_ch, base_size, 1); + } else if (first_gl_ch >= 0) { // 1 x 8 bit monochrome, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_8bit(img, page, first_gl_ch, base_size, 0); + } else { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Unsupported BMFont texture format.")); + } + } + } + page++; + cs = ""; + } else { + cs += c; + } + c = f->get_8(); + } + } break; + case 4: /* chars */ { + int char_count = block_size / 20; + for (int i = 0; i < char_count; i++) { + Vector2 advance; + Vector2 size; + Vector2 offset; + Rect2 uv_rect; + + char32_t idx = f->get_32(); + uv_rect.position.x = (int16_t)f->get_16(); + uv_rect.position.y = (int16_t)f->get_16(); + uv_rect.size.width = (int16_t)f->get_16(); + size.width = uv_rect.size.width; + uv_rect.size.height = (int16_t)f->get_16(); + size.height = uv_rect.size.height; + offset.x = (int16_t)f->get_16(); + offset.y = (int16_t)f->get_16() - ascent; + advance.x = (int16_t)f->get_16(); + if (advance.x < 0) { + advance.x = size.width + 1; + } + + int texture_idx = f->get_8(); + uint8_t channel = f->get_8(); + + ERR_FAIL_COND_V_MSG(!packed && channel != 15, ERR_CANT_CREATE, TTR("Invalid glyph channel.")); + int ch_off = 0; + switch (channel) { + case 1: + ch_off = 2; + break; // B + case 2: + ch_off = 1; + break; // G + case 4: + ch_off = 0; + break; // R + case 8: + ch_off = 3; + break; // A + default: + ch_off = 0; + break; + } + set_glyph_advance(0, base_size, idx, advance); + set_glyph_offset(0, Vector2i(base_size, 0), idx, offset); + set_glyph_size(0, Vector2i(base_size, 0), idx, size); + set_glyph_uv_rect(0, Vector2i(base_size, 0), idx, uv_rect); + set_glyph_texture_idx(0, Vector2i(base_size, 0), idx, texture_idx * (packed ? 4 : 1) + ch_off); + if (outline > 0) { + set_glyph_offset(0, Vector2i(base_size, 1), idx, offset); + set_glyph_size(0, Vector2i(base_size, 1), idx, size); + set_glyph_uv_rect(0, Vector2i(base_size, 1), idx, uv_rect); + set_glyph_texture_idx(0, Vector2i(base_size, 1), idx, texture_idx * (packed ? 4 : 1) + ch_off); + } + } + } break; + case 5: /* kerning */ { + int pair_count = block_size / 10; + for (int i = 0; i < pair_count; i++) { + Vector2i kpk; + kpk.x = f->get_32(); + kpk.y = f->get_32(); + set_kerning(0, base_size, kpk, Vector2((int16_t)f->get_16(), 0)); + } + } break; + default: { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Invalid BMFont block type.")); + } break; + } + f->seek(off + block_size); + block_type = f->get_8(); + block_size = f->get_32(); + } + + } else { + // Text BMFont file. + f->seek(0); + 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(); + set_fixed_size(base_size); + } + if (keys.has("outline")) { + outline = keys["outline"].to_int(); + } + if (keys.has("bold")) { + if (keys["bold"].to_int()) { + st_flags |= TextServer::FONT_BOLD; + } + } + if (keys.has("italic")) { + if (keys["italic"].to_int()) { + st_flags |= TextServer::FONT_ITALIC; + } + } + if (keys.has("face")) { + font_name = keys["face"]; + } + ERR_FAIL_COND_V_MSG((!keys.has("unicode") || keys["unicode"].to_int() != 1), ERR_CANT_CREATE, TTR("Non-unicode version of BMFont is not supported.")); + } else if (type == "common") { + if (keys.has("lineHeight")) { + height = keys["lineHeight"].to_int(); + } + if (keys.has("base")) { + ascent = keys["base"].to_int(); + } + if (keys.has("packed")) { + packed = (keys["packed"].to_int() == 1); + } + if (keys.has("alphaChnl")) { + ch[3] = keys["alphaChnl"].to_int(); + } + if (keys.has("redChnl")) { + ch[0] = keys["redChnl"].to_int(); + } + if (keys.has("greenChnl")) { + ch[1] = keys["greenChnl"].to_int(); + } + if (keys.has("blueChnl")) { + ch[2] = keys["blueChnl"].to_int(); + } + for (int i = 0; i < 4; i++) { + if (ch[i] == 0 && first_gl_ch == -1) { + first_gl_ch = i; + } + if (ch[i] == 1 && first_ol_ch == -1) { + first_ol_ch = i; + } + if (ch[i] == 2 && first_cm_ch == -1) { + first_cm_ch = i; + } + } + } else if (type == "page") { + int page = 0; + if (keys.has("id")) { + page = keys["id"].to_int(); + } + if (keys.has("file")) { + String base_dir = p_path.get_base_dir(); + String file = base_dir.plus_file(keys["file"]); + if (RenderingServer::get_singleton() != nullptr) { + Ref<Image> img; + img.instantiate(); + Error err = ImageLoader::load_image(file, img); + ERR_FAIL_COND_V_MSG(err != OK, ERR_FILE_CANT_READ, TTR("Can't load font texture: ") + "\"" + file + "\"."); + if (packed) { + if (ch[3] == 0) { // 4 x 8 bit monochrome, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_packed_8bit(img, page, base_size); + } else if ((ch[3] == 2) && (outline > 0)) { // 4 x 4 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_packed_4bit(img, page, base_size); + } else { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Unsupported BMFont texture format.")); + } + } else { + if ((ch[0] == 0) && (ch[1] == 0) && (ch[2] == 0) && (ch[3] == 0)) { // RGBA8 color, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + set_texture_image(0, Vector2i(base_size, 0), page, img); + } else if ((ch[0] == 2) && (ch[1] == 2) && (ch[2] == 2) && (ch[3] == 2) && (outline > 0)) { // RGBA4 color, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_rgba_4bit(img, page, base_size); + } else if ((first_gl_ch >= 0) && (first_ol_ch >= 0) && (outline > 0)) { // 1 x 8 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_8bit(img, page, first_gl_ch, base_size, 0); + _convert_mono_8bit(img, page, first_ol_ch, base_size, 1); + } else if ((first_cm_ch >= 0) && (outline > 0)) { // 1 x 4 bit monochrome, gl + outline + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_4bit(img, page, first_cm_ch, base_size, 1); + } else if (first_gl_ch >= 0) { // 1 x 8 bit monochrome, no outline + outline = 0; + ERR_FAIL_COND_V_MSG(img->get_format() != Image::FORMAT_RGBA8 && img->get_format() != Image::FORMAT_L8, ERR_FILE_CANT_READ, TTR("Unsupported BMFont texture format.")); + _convert_mono_8bit(img, page, first_gl_ch, base_size, 0); + } else { + ERR_FAIL_V_MSG(ERR_CANT_CREATE, TTR("Unsupported BMFont texture format.")); + } + } + } + } + } else if (type == "char") { + char32_t idx = 0; + Vector2 advance; + Vector2 size; + Vector2 offset; + Rect2 uv_rect; + int texture_idx = -1; + uint8_t channel = 15; + + if (keys.has("id")) { + idx = keys["id"].to_int(); + } + if (keys.has("x")) { + uv_rect.position.x = keys["x"].to_int(); + } + if (keys.has("y")) { + uv_rect.position.y = keys["y"].to_int(); + } + if (keys.has("width")) { + uv_rect.size.width = keys["width"].to_int(); + size.width = keys["width"].to_int(); + } + if (keys.has("height")) { + uv_rect.size.height = keys["height"].to_int(); + size.height = keys["height"].to_int(); + } + if (keys.has("xoffset")) { + offset.x = keys["xoffset"].to_int(); + } + if (keys.has("yoffset")) { + offset.y = keys["yoffset"].to_int() - ascent; + } + if (keys.has("page")) { + texture_idx = keys["page"].to_int(); + } + if (keys.has("xadvance")) { + advance.x = keys["xadvance"].to_int(); + } + if (advance.x < 0) { + advance.x = size.width + 1; + } + if (keys.has("chnl")) { + channel = keys["chnl"].to_int(); + } + + ERR_FAIL_COND_V_MSG(!packed && channel != 15, ERR_CANT_CREATE, TTR("Invalid glyph channel.")); + int ch_off = 0; + switch (channel) { + case 1: + ch_off = 2; + break; // B + case 2: + ch_off = 1; + break; // G + case 4: + ch_off = 0; + break; // R + case 8: + ch_off = 3; + break; // A + default: + ch_off = 0; + break; + } + set_glyph_advance(0, base_size, idx, advance); + set_glyph_offset(0, Vector2i(base_size, 0), idx, offset); + set_glyph_size(0, Vector2i(base_size, 0), idx, size); + set_glyph_uv_rect(0, Vector2i(base_size, 0), idx, uv_rect); + set_glyph_texture_idx(0, Vector2i(base_size, 0), idx, texture_idx * (packed ? 4 : 1) + ch_off); + if (outline > 0) { + set_glyph_offset(0, Vector2i(base_size, 1), idx, offset); + set_glyph_size(0, Vector2i(base_size, 1), idx, size); + set_glyph_uv_rect(0, Vector2i(base_size, 1), idx, uv_rect); + set_glyph_texture_idx(0, Vector2i(base_size, 1), idx, texture_idx * (packed ? 4 : 1) + ch_off); + } + } else if (type == "kerning") { + Vector2i kpk; + if (keys.has("first")) { + kpk.x = keys["first"].to_int(); + } + if (keys.has("second")) { + kpk.y = keys["second"].to_int(); + } + if (keys.has("amount")) { + set_kerning(0, base_size, kpk, Vector2(keys["amount"].to_int(), 0)); + } + } + + if (f->eof_reached()) { + break; + } + } + } + + set_font_name(font_name); + set_font_style(st_flags); + set_ascent(0, base_size, ascent); + set_descent(0, base_size, height - ascent); + + return OK; +} + +Error FontData::load_dynamic_font(const String &p_path) { + reset_state(); + + Vector<uint8_t> data = FileAccess::get_file_as_array(p_path); + set_data(data); + + return OK; +} + void FontData::set_data_ptr(const uint8_t *p_data, size_t p_size) { data.clear(); data_ptr = p_data; diff --git a/scene/resources/font.h b/scene/resources/font.h index 4d9ee72c84..cee577d506 100644 --- a/scene/resources/font.h +++ b/scene/resources/font.h @@ -63,6 +63,12 @@ class FontData : public Resource { _FORCE_INLINE_ void _clear_cache(); _FORCE_INLINE_ void _ensure_rid(int p_cache_index) const; + void _convert_packed_8bit(Ref<Image> &p_source, int p_page, int p_sz); + void _convert_packed_4bit(Ref<Image> &p_source, int p_page, int p_sz); + void _convert_rgba_4bit(Ref<Image> &p_source, int p_page, int p_sz); + void _convert_mono_8bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol); + void _convert_mono_4bit(Ref<Image> &p_source, int p_page, int p_ch, int p_sz, int p_ol); + protected: static void _bind_methods(); @@ -73,6 +79,9 @@ protected: virtual void reset_state() override; public: + Error load_bitmap_font(const String &p_path); + Error load_dynamic_font(const String &p_path); + // Font source data. virtual void set_data_ptr(const uint8_t *p_data, size_t p_size); virtual void set_data(const PackedByteArray &p_data); |