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godot/modules/text_server_fb/text_server_fb.cpp

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/*************************************************************************/
/* text_server_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 "text_server_fb.h"
#include "core/error/error_macros.h"
#include "core/string/print_string.h"
#ifdef MODULE_MSDFGEN_ENABLED
#include "core/ShapeDistanceFinder.h"
#include "core/contour-combiners.h"
#include "core/edge-selectors.h"
#include "msdfgen.h"
#endif
/*************************************************************************/
/* Character properties. */
/*************************************************************************/
_FORCE_INLINE_ bool is_control(char32_t p_char) {
return (p_char <= 0x001f) || (p_char >= 0x007f && p_char <= 0x009F);
}
_FORCE_INLINE_ bool is_whitespace(char32_t p_char) {
return (p_char == 0x0020) || (p_char == 0x00A0) || (p_char == 0x1680) || (p_char >= 0x2000 && p_char <= 0x200a) || (p_char == 0x202f) || (p_char == 0x205f) || (p_char == 0x3000) || (p_char == 0x2028) || (p_char == 0x2029) || (p_char >= 0x0009 && p_char <= 0x000d) || (p_char == 0x0085);
}
_FORCE_INLINE_ bool is_linebreak(char32_t p_char) {
return (p_char >= 0x000a && p_char <= 0x000d) || (p_char == 0x0085) || (p_char == 0x2028) || (p_char == 0x2029);
}
_FORCE_INLINE_ bool is_punct(char32_t p_char) {
return (p_char >= 0x0020 && p_char <= 0x002F) || (p_char >= 0x003A && p_char <= 0x0040) || (p_char >= 0x005B && p_char <= 0x005E) || (p_char == 0x0060) || (p_char >= 0x007B && p_char <= 0x007E) || (p_char >= 0x2000 && p_char <= 0x206F) || (p_char >= 0x3000 && p_char <= 0x303F);
}
_FORCE_INLINE_ bool is_underscore(char32_t p_char) {
return (p_char == 0x005F);
}
/*************************************************************************/
String TextServerFallback::interface_name = "Fallback";
uint32_t TextServerFallback::interface_features = 0; // Nothing is supported.
bool TextServerFallback::has_feature(Feature p_feature) {
return (interface_features & p_feature) == p_feature;
}
String TextServerFallback::get_name() const {
return interface_name;
}
void TextServerFallback::free(RID p_rid) {
_THREAD_SAFE_METHOD_
if (font_owner.owns(p_rid)) {
FontDataFallback *fd = font_owner.getornull(p_rid);
font_owner.free(p_rid);
memdelete(fd);
} else if (shaped_owner.owns(p_rid)) {
ShapedTextData *sd = shaped_owner.getornull(p_rid);
shaped_owner.free(p_rid);
memdelete(sd);
}
}
bool TextServerFallback::has(RID p_rid) {
_THREAD_SAFE_METHOD_
return font_owner.owns(p_rid) || shaped_owner.owns(p_rid);
}
bool TextServerFallback::load_support_data(const String &p_filename) {
return false; // No extra data used.
}
#ifdef TOOLS_ENABLED
bool TextServerFallback::save_support_data(const String &p_filename) {
return false; // No extra data used.
}
#endif
bool TextServerFallback::is_locale_right_to_left(const String &p_locale) {
return false; // No RTL support.
}
#define OT_TAG(c1, c2, c3, c4) ((int32_t)((((uint32_t)(c1)&0xFF) << 24) | (((uint32_t)(c2)&0xFF) << 16) | (((uint32_t)(c3)&0xFF) << 8) | ((uint32_t)(c4)&0xFF)))
struct FeatureInfo {
int32_t tag;
String name;
};
static FeatureInfo feature_set[] = {
// Registered OpenType variation tags.
{ OT_TAG('i', 't', 'a', 'l'), "italic" },
{ OT_TAG('o', 'p', 's', 'z'), "optical_size" },
{ OT_TAG('s', 'l', 'n', 't'), "slant" },
{ OT_TAG('w', 'd', 't', 'h'), "width" },
{ OT_TAG('w', 'g', 'h', 't'), "weight" },
{ 0, String() },
};
_FORCE_INLINE_ int32_t ot_tag_from_string(const char *p_str, int p_len) {
char tag[4];
uint32_t i;
if (!p_str || !p_len || !*p_str)
return OT_TAG(0, 0, 0, 0);
if (p_len < 0 || p_len > 4) {
p_len = 4;
}
for (i = 0; i < (uint32_t)p_len && p_str[i]; i++) {
tag[i] = p_str[i];
}
for (; i < 4; i++) {
tag[i] = ' ';
}
return OT_TAG(tag[0], tag[1], tag[2], tag[3]);
}
int32_t TextServerFallback::name_to_tag(const String &p_name) const {
for (int i = 0; feature_set[i].tag != 0; i++) {
if (feature_set[i].name == p_name) {
return feature_set[i].tag;
}
}
// No readable name, use tag string.
return ot_tag_from_string(p_name.replace("custom_", "").ascii().get_data(), -1);
}
_FORCE_INLINE_ void ot_tag_to_string(int32_t p_tag, char *p_buf) {
p_buf[0] = (char)(uint8_t)(p_tag >> 24);
p_buf[1] = (char)(uint8_t)(p_tag >> 16);
p_buf[2] = (char)(uint8_t)(p_tag >> 8);
p_buf[3] = (char)(uint8_t)(p_tag >> 0);
}
String TextServerFallback::tag_to_name(int32_t p_tag) const {
for (int i = 0; feature_set[i].tag != 0; i++) {
if (feature_set[i].tag == p_tag) {
return feature_set[i].name;
}
}
// No readable name, use tag string.
char name[5];
memset(name, 0, 5);
ot_tag_to_string(p_tag, name);
return String("custom_") + String(name);
}
/*************************************************************************/
/* Font Glyph Rendering */
/*************************************************************************/
_FORCE_INLINE_ TextServerFallback::FontTexturePosition TextServerFallback::find_texture_pos_for_glyph(FontDataForSizeFallback *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height) const {
FontTexturePosition ret;
ret.index = -1;
int mw = p_width;
int mh = p_height;
for (int i = 0; i < p_data->textures.size(); i++) {
const FontTexture &ct = p_data->textures[i];
if (RenderingServer::get_singleton() != nullptr) {
if (ct.texture->get_format() != p_image_format) {
continue;
}
}
if (mw > ct.texture_w || mh > ct.texture_h) { // Too big for this texture.
continue;
}
ret.y = 0x7FFFFFFF;
ret.x = 0;
for (int j = 0; j < ct.texture_w - 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 < ret.y) {
ret.y = max_y;
ret.x = j;
}
}
if (ret.y == 0x7FFFFFFF || ret.y + mh > ct.texture_h) {
continue; // Fail, could not fit it here.
}
ret.index = i;
break;
}
if (ret.index == -1) {
// Could not find texture to fit, create one.
ret.x = 0;
ret.y = 0;
int texsize = MAX(p_data->size.x * p_data->oversampling * 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);
FontTexture tex;
tex.texture_w = texsize;
tex.texture_h = texsize;
tex.format = p_image_format;
tex.imgdata.resize(texsize * texsize * p_color_size);
{
// Zero texture.
uint8_t *w = tex.imgdata.ptrw();
ERR_FAIL_COND_V(texsize * texsize * p_color_size > tex.imgdata.size(), ret);
// Initialize the texture to all-white pixels to prevent artifacts when the
// font is displayed at a non-default scale with filtering enabled.
if (p_color_size == 2) {
for (int i = 0; i < texsize * texsize * p_color_size; i += 2) { // FORMAT_LA8, BW font.
w[i + 0] = 255;
w[i + 1] = 0;
}
} else if (p_color_size == 4) {
for (int i = 0; i < texsize * texsize * p_color_size; i += 4) { // FORMAT_RGBA8, Color font, Multichannel(+True) SDF.
w[i + 0] = 255;
w[i + 1] = 255;
w[i + 2] = 255;
w[i + 3] = 0;
}
} else {
ERR_FAIL_V(ret);
}
}
tex.offsets.resize(texsize);
for (int i = 0; i < texsize; i++) { // Zero offsets.
tex.offsets.write[i] = 0;
}
p_data->textures.push_back(tex);
ret.index = p_data->textures.size() - 1;
}
return ret;
}
#ifdef MODULE_MSDFGEN_ENABLED
struct MSContext {
msdfgen::Point2 position;
msdfgen::Shape *shape;
msdfgen::Contour *contour;
};
class DistancePixelConversion {
double invRange;
public:
_FORCE_INLINE_ explicit DistancePixelConversion(double range) :
invRange(1 / range) {}
_FORCE_INLINE_ void operator()(float *pixels, const msdfgen::MultiAndTrueDistance &distance) const {
pixels[0] = float(invRange * distance.r + .5);
pixels[1] = float(invRange * distance.g + .5);
pixels[2] = float(invRange * distance.b + .5);
pixels[3] = float(invRange * distance.a + .5);
}
};
struct MSDFThreadData {
msdfgen::Bitmap<float, 4> *output;
msdfgen::Shape *shape;
msdfgen::Projection *projection;
DistancePixelConversion *distancePixelConversion;
};
static msdfgen::Point2 ft_point2(const FT_Vector &vector) {
return msdfgen::Point2(vector.x / 60.0f, vector.y / 60.0f);
}
static int ft_move_to(const FT_Vector *to, void *user) {
MSContext *context = reinterpret_cast<MSContext *>(user);
if (!(context->contour && context->contour->edges.empty())) {
context->contour = &context->shape->addContour();
}
context->position = ft_point2(*to);
return 0;
}
static int ft_line_to(const FT_Vector *to, void *user) {
MSContext *context = reinterpret_cast<MSContext *>(user);
msdfgen::Point2 endpoint = ft_point2(*to);
if (endpoint != context->position) {
context->contour->addEdge(new msdfgen::LinearSegment(context->position, endpoint));
context->position = endpoint;
}
return 0;
}
static int ft_conic_to(const FT_Vector *control, const FT_Vector *to, void *user) {
MSContext *context = reinterpret_cast<MSContext *>(user);
context->contour->addEdge(new msdfgen::QuadraticSegment(context->position, ft_point2(*control), ft_point2(*to)));
context->position = ft_point2(*to);
return 0;
}
static int ft_cubic_to(const FT_Vector *control1, const FT_Vector *control2, const FT_Vector *to, void *user) {
MSContext *context = reinterpret_cast<MSContext *>(user);
context->contour->addEdge(new msdfgen::CubicSegment(context->position, ft_point2(*control1), ft_point2(*control2), ft_point2(*to)));
context->position = ft_point2(*to);
return 0;
}
void TextServerFallback::_generateMTSDF_threaded(uint32_t y, void *p_td) const {
MSDFThreadData *td = (MSDFThreadData *)p_td;
msdfgen::ShapeDistanceFinder<msdfgen::OverlappingContourCombiner<msdfgen::MultiAndTrueDistanceSelector>> distanceFinder(*td->shape);
int row = td->shape->inverseYAxis ? td->output->height() - y - 1 : y;
for (int col = 0; col < td->output->width(); ++col) {
int x = (y % 2) ? td->output->width() - col - 1 : col;
msdfgen::Point2 p = td->projection->unproject(msdfgen::Point2(x + .5, y + .5));
msdfgen::MultiAndTrueDistance distance = distanceFinder.distance(p);
td->distancePixelConversion->operator()(td->output->operator()(x, row), distance);
}
}
_FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_msdf(FontDataFallback *p_font_data, FontDataForSizeFallback *p_data, int p_pixel_range, int p_rect_margin, FT_Outline *outline, const Vector2 &advance) const {
msdfgen::Shape shape;
shape.contours.clear();
shape.inverseYAxis = false;
MSContext context = {};
context.shape = &shape;
FT_Outline_Funcs ft_functions;
ft_functions.move_to = &ft_move_to;
ft_functions.line_to = &ft_line_to;
ft_functions.conic_to = &ft_conic_to;
ft_functions.cubic_to = &ft_cubic_to;
ft_functions.shift = 0;
ft_functions.delta = 0;
int error = FT_Outline_Decompose(outline, &ft_functions, &context);
ERR_FAIL_COND_V_MSG(error, FontGlyph(), "FreeType: Outline decomposition error: '" + String(FT_Error_String(error)) + "'.");
if (!shape.contours.empty() && shape.contours.back().edges.empty()) {
shape.contours.pop_back();
}
if (FT_Outline_Get_Orientation(outline) == 1) {
for (int i = 0; i < (int)shape.contours.size(); ++i) {
shape.contours[i].reverse();
}
}
shape.inverseYAxis = true;
shape.normalize();
msdfgen::Shape::Bounds bounds = shape.getBounds(p_pixel_range);
FontGlyph chr;
chr.found = true;
chr.advance = advance.round();
if (shape.validate() && shape.contours.size() > 0) {
int w = (bounds.r - bounds.l);
int h = (bounds.t - bounds.b);
int mw = w + p_rect_margin * 2;
int mh = h + p_rect_margin * 2;
ERR_FAIL_COND_V(mw > 4096, FontGlyph());
ERR_FAIL_COND_V(mh > 4096, FontGlyph());
FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh);
ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph());
FontTexture &tex = p_data->textures.write[tex_pos.index];
edgeColoringSimple(shape, 3.0); // Max. angle.
msdfgen::Bitmap<real_t, 4> image(w, h); // Texture size.
//msdfgen::generateMTSDF(image, shape, p_pixel_range, 1.0, msdfgen::Vector2(-bounds.l, -bounds.b)); // Range, scale, translation.
DistancePixelConversion distancePixelConversion(p_pixel_range);
msdfgen::Projection projection(msdfgen::Vector2(1.0, 1.0), msdfgen::Vector2(-bounds.l, -bounds.b));
msdfgen::MSDFGeneratorConfig config(true, msdfgen::ErrorCorrectionConfig());
MSDFThreadData td;
td.output = &image;
td.shape = &shape;
td.projection = &projection;
td.distancePixelConversion = &distancePixelConversion;
if (p_font_data->work_pool.get_thread_count() == 0) {
p_font_data->work_pool.init();
}
p_font_data->work_pool.do_work(h, this, &TextServerFallback::_generateMTSDF_threaded, &td);
msdfgen::msdfErrorCorrection(image, shape, projection, p_pixel_range, config);
{
uint8_t *wr = tex.imgdata.ptrw();
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
int ofs = ((i + tex_pos.y + p_rect_margin) * tex.texture_w + j + tex_pos.x + p_rect_margin) * 4;
ERR_FAIL_COND_V(ofs >= tex.imgdata.size(), FontGlyph());
wr[ofs + 0] = (uint8_t)(CLAMP(image(j, i)[0] * 256.f, 0.f, 255.f));
wr[ofs + 1] = (uint8_t)(CLAMP(image(j, i)[1] * 256.f, 0.f, 255.f));
wr[ofs + 2] = (uint8_t)(CLAMP(image(j, i)[2] * 256.f, 0.f, 255.f));
wr[ofs + 3] = (uint8_t)(CLAMP(image(j, i)[3] * 256.f, 0.f, 255.f));
}
}
}
// Blit to image and texture.
{
if (RenderingServer::get_singleton() != nullptr) {
Ref<Image> img = memnew(Image(tex.texture_w, tex.texture_h, 0, Image::FORMAT_RGBA8, tex.imgdata));
if (tex.texture.is_null()) {
tex.texture.instantiate();
tex.texture->create_from_image(img);
} else {
tex.texture->update(img);
}
}
}
// Update height array.
for (int k = tex_pos.x; k < tex_pos.x + mw; k++) {
tex.offsets.write[k] = tex_pos.y + mh;
}
chr.texture_idx = tex_pos.index;
chr.uv_rect = Rect2(tex_pos.x + p_rect_margin, tex_pos.y + p_rect_margin, w, h);
chr.rect.position = Vector2(bounds.l, -bounds.t);
chr.rect.size = chr.uv_rect.size;
}
return chr;
}
#endif
#ifdef MODULE_FREETYPE_ENABLED
_FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitmap(FontDataForSizeFallback *p_data, int p_rect_margin, FT_Bitmap bitmap, int yofs, int xofs, const Vector2 &advance) const {
int w = bitmap.width;
int h = bitmap.rows;
int mw = w + p_rect_margin * 2;
int mh = h + p_rect_margin * 2;
ERR_FAIL_COND_V(mw > 4096, FontGlyph());
ERR_FAIL_COND_V(mh > 4096, FontGlyph());
int color_size = bitmap.pixel_mode == FT_PIXEL_MODE_BGRA ? 4 : 2;
Image::Format require_format = color_size == 4 ? Image::FORMAT_RGBA8 : Image::FORMAT_LA8;
FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, color_size, require_format, mw, mh);
ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph());
// Fit character in char texture.
FontTexture &tex = p_data->textures.write[tex_pos.index];
{
uint8_t *wr = tex.imgdata.ptrw();
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
int ofs = ((i + tex_pos.y + p_rect_margin) * tex.texture_w + j + tex_pos.x + p_rect_margin) * color_size;
ERR_FAIL_COND_V(ofs >= tex.imgdata.size(), FontGlyph());
switch (bitmap.pixel_mode) {
case FT_PIXEL_MODE_MONO: {
int byte = i * bitmap.pitch + (j >> 3);
int bit = 1 << (7 - (j % 8));
wr[ofs + 0] = 255; //grayscale as 1
wr[ofs + 1] = (bitmap.buffer[byte] & bit) ? 255 : 0;
} break;
case FT_PIXEL_MODE_GRAY:
wr[ofs + 0] = 255; //grayscale as 1
wr[ofs + 1] = bitmap.buffer[i * bitmap.pitch + j];
break;
case FT_PIXEL_MODE_BGRA: {
int ofs_color = i * bitmap.pitch + (j << 2);
wr[ofs + 2] = bitmap.buffer[ofs_color + 0];
wr[ofs + 1] = bitmap.buffer[ofs_color + 1];
wr[ofs + 0] = bitmap.buffer[ofs_color + 2];
wr[ofs + 3] = bitmap.buffer[ofs_color + 3];
} break;
default:
ERR_FAIL_V_MSG(FontGlyph(), "Font uses unsupported pixel format: " + itos(bitmap.pixel_mode) + ".");
break;
}
}
}
}
// Blit to image and texture.
{
if (RenderingServer::get_singleton() != nullptr) {
Ref<Image> img = memnew(Image(tex.texture_w, tex.texture_h, 0, require_format, tex.imgdata));
if (tex.texture.is_null()) {
tex.texture.instantiate();
tex.texture->create_from_image(img);
} else {
tex.texture->update(img);
}
}
}
// Update height array.
for (int k = tex_pos.x; k < tex_pos.x + mw; k++) {
tex.offsets.write[k] = tex_pos.y + mh;
}
FontGlyph chr;
chr.advance = (advance * p_data->scale / p_data->oversampling).round();
chr.texture_idx = tex_pos.index;
chr.found = true;
chr.uv_rect = Rect2(tex_pos.x + p_rect_margin, tex_pos.y + p_rect_margin, w, h);
chr.rect.position = (Vector2(xofs, -yofs) * p_data->scale / p_data->oversampling).round();
chr.rect.size = chr.uv_rect.size * p_data->scale / p_data->oversampling;
return chr;
}
#endif
/*************************************************************************/
/* Font Cache */
/*************************************************************************/
_FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontDataFallback *p_font_data, const Vector2i &p_size, int32_t p_glyph) const {
ERR_FAIL_COND_V(!_ensure_cache_for_size(p_font_data, p_size), false);
FontDataForSizeFallback *fd = p_font_data->cache[p_size];
if (fd->glyph_map.has(p_glyph)) {
return fd->glyph_map[p_glyph].found;
}
if (p_glyph == 0) { // Non graphical or invalid glyph, do not render.
fd->glyph_map[p_glyph] = FontGlyph();
return true;
}
#ifdef MODULE_FREETYPE_ENABLED
FontGlyph gl;
if (fd->face) {
FT_Int32 flags = FT_LOAD_DEFAULT;
bool outline = p_size.y > 0;
switch (p_font_data->hinting) {
case TextServer::HINTING_NONE:
flags |= FT_LOAD_NO_HINTING;
break;
case TextServer::HINTING_LIGHT:
flags |= FT_LOAD_TARGET_LIGHT;
break;
default:
flags |= FT_LOAD_TARGET_NORMAL;
break;
}
if (p_font_data->force_autohinter) {
flags |= FT_LOAD_FORCE_AUTOHINT;
}
if (outline) {
flags |= FT_LOAD_NO_BITMAP;
} else if (FT_HAS_COLOR(fd->face)) {
flags |= FT_LOAD_COLOR;
}
int32_t glyph_index = FT_Get_Char_Index(fd->face, p_glyph);
FT_Fixed v, h;
FT_Get_Advance(fd->face, glyph_index, flags, &h);
FT_Get_Advance(fd->face, glyph_index, flags | FT_LOAD_VERTICAL_LAYOUT, &v);
int error = FT_Load_Glyph(fd->face, glyph_index, flags);
if (error) {
fd->glyph_map[p_glyph] = FontGlyph();
ERR_FAIL_V_MSG(false, "FreeType: Failed to load glyph.");
}
if (!outline) {
if (!p_font_data->msdf) {
error = FT_Render_Glyph(fd->face->glyph, p_font_data->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO);
}
FT_GlyphSlot slot = fd->face->glyph;
if (!error) {
if (p_font_data->msdf) {
#ifdef MODULE_MSDFGEN_ENABLED
gl = rasterize_msdf(p_font_data, fd, p_font_data->msdf_range, rect_range, &slot->outline, Vector2((h + (1 << 9)) >> 10, (v + (1 << 9)) >> 10) / 64.0);
#else
fd->glyph_map[p_glyph] = FontGlyph();
ERR_FAIL_V_MSG(false, "Compiled without MSDFGEN support!");
#endif
} else {
gl = rasterize_bitmap(fd, rect_range, slot->bitmap, slot->bitmap_top, slot->bitmap_left, Vector2((h + (1 << 9)) >> 10, (v + (1 << 9)) >> 10) / 64.0);
}
}
} else {
FT_Stroker stroker;
if (FT_Stroker_New(library, &stroker) != 0) {
fd->glyph_map[p_glyph] = FontGlyph();
ERR_FAIL_V_MSG(false, "FreeType: Failed to load glyph stroker.");
}
FT_Stroker_Set(stroker, (int)(fd->size.y * fd->oversampling * 16.0), FT_STROKER_LINECAP_BUTT, FT_STROKER_LINEJOIN_ROUND, 0);
FT_Glyph glyph;
FT_BitmapGlyph glyph_bitmap;
if (FT_Get_Glyph(fd->face->glyph, &glyph) != 0) {
goto cleanup_stroker;
}
if (FT_Glyph_Stroke(&glyph, stroker, 1) != 0) {
goto cleanup_glyph;
}
if (FT_Glyph_To_Bitmap(&glyph, p_font_data->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO, nullptr, 1) != 0) {
goto cleanup_glyph;
}
glyph_bitmap = (FT_BitmapGlyph)glyph;
gl = rasterize_bitmap(fd, rect_range, glyph_bitmap->bitmap, glyph_bitmap->top, glyph_bitmap->left, Vector2());
cleanup_glyph:
FT_Done_Glyph(glyph);
cleanup_stroker:
FT_Stroker_Done(stroker);
}
fd->glyph_map[p_glyph] = gl;
return gl.found;
}
#endif
fd->glyph_map[p_glyph] = FontGlyph();
return false;
}
_FORCE_INLINE_ bool TextServerFallback::_ensure_cache_for_size(FontDataFallback *p_font_data, const Vector2i &p_size) const {
if (p_font_data->cache.has(p_size)) {
return true;
}
FontDataForSizeFallback *fd = memnew(FontDataForSizeFallback);
fd->size = p_size;
if (p_font_data->data_ptr) {
// Init dynamic font.
#ifdef MODULE_FREETYPE_ENABLED
int error = 0;
if (!library) {
error = FT_Init_FreeType(&library);
ERR_FAIL_COND_V_MSG(error != 0, false, "FreeType: Error initializing library: '" + String(FT_Error_String(error)) + "'.");
}
memset(&fd->stream, 0, sizeof(FT_StreamRec));
fd->stream.base = (unsigned char *)p_font_data->data_ptr;
fd->stream.size = p_font_data->data_size;
fd->stream.pos = 0;
FT_Open_Args fargs;
memset(&fargs, 0, sizeof(FT_Open_Args));
fargs.memory_base = (unsigned char *)p_font_data->data_ptr;
fargs.memory_size = p_font_data->data_size;
fargs.flags = FT_OPEN_MEMORY;
fargs.stream = &fd->stream;
error = FT_Open_Face(library, &fargs, 0, &fd->face);
if (error) {
FT_Done_Face(fd->face);
fd->face = nullptr;
ERR_FAIL_V_MSG(false, "FreeType: Error loading font: '" + String(FT_Error_String(error)) + "'.");
}
if (p_font_data->msdf) {
fd->oversampling = 1.0f;
fd->size.x = p_font_data->msdf_source_size;
} else if (p_font_data->oversampling <= 0.0f) {
fd->oversampling = TS->font_get_global_oversampling();
} else {
fd->oversampling = p_font_data->oversampling;
}
if (FT_HAS_COLOR(fd->face) && fd->face->num_fixed_sizes > 0) {
int best_match = 0;
int diff = ABS(fd->size.x - ((int64_t)fd->face->available_sizes[0].width));
fd->scale = real_t(fd->size.x * fd->oversampling) / fd->face->available_sizes[0].width;
for (int i = 1; i < fd->face->num_fixed_sizes; i++) {
int ndiff = ABS(fd->size.x - ((int64_t)fd->face->available_sizes[i].width));
if (ndiff < diff) {
best_match = i;
diff = ndiff;
fd->scale = real_t(fd->size.x * fd->oversampling) / fd->face->available_sizes[i].width;
}
}
FT_Select_Size(fd->face, best_match);
} else {
FT_Set_Pixel_Sizes(fd->face, 0, fd->size.x * fd->oversampling);
}
fd->ascent = (fd->face->size->metrics.ascender / 64.0) / fd->oversampling * fd->scale;
fd->descent = (-fd->face->size->metrics.descender / 64.0) / fd->oversampling * fd->scale;
fd->underline_position = (-FT_MulFix(fd->face->underline_position, fd->face->size->metrics.y_scale) / 64.0) / fd->oversampling * fd->scale;
fd->underline_thickness = (FT_MulFix(fd->face->underline_thickness, fd->face->size->metrics.y_scale) / 64.0) / fd->oversampling * fd->scale;
if (!p_font_data->face_init) {
// Read OpenType variations.
p_font_data->supported_varaitions.clear();
if (fd->face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) {
FT_MM_Var *amaster;
FT_Get_MM_Var(fd->face, &amaster);
for (FT_UInt i = 0; i < amaster->num_axis; i++) {
p_font_data->supported_varaitions[(int32_t)amaster->axis[i].tag] = Vector3i(amaster->axis[i].minimum / 65536, amaster->axis[i].maximum / 65536, amaster->axis[i].def / 65536);
}
FT_Done_MM_Var(library, amaster);
}
p_font_data->face_init = true;
}
// Write variations.
if (fd->face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) {
FT_MM_Var *amaster;
FT_Get_MM_Var(fd->face, &amaster);
Vector<FT_Fixed> coords;
coords.resize(amaster->num_axis);
FT_Get_Var_Design_Coordinates(fd->face, coords.size(), coords.ptrw());
for (FT_UInt i = 0; i < amaster->num_axis; i++) {
// Reset to default.
int32_t var_tag = amaster->axis[i].tag;
real_t var_value = (double)amaster->axis[i].def / 65536.f;
coords.write[i] = amaster->axis[i].def;
if (p_font_data->variation_coordinates.has(var_tag)) {
var_value = p_font_data->variation_coordinates[var_tag];
coords.write[i] = CLAMP(var_value * 65536.f, amaster->axis[i].minimum, amaster->axis[i].maximum);
}
if (p_font_data->variation_coordinates.has(tag_to_name(var_tag))) {
var_value = p_font_data->variation_coordinates[tag_to_name(var_tag)];
coords.write[i] = CLAMP(var_value * 65536.f, amaster->axis[i].minimum, amaster->axis[i].maximum);
}
}
FT_Set_Var_Design_Coordinates(fd->face, coords.size(), coords.ptrw());
FT_Done_MM_Var(library, amaster);
}
#else
ERR_FAIL_V_MSG(false, "FreeType: Can't load dynamic font, engine is compiled without FreeType support!");
#endif
}
p_font_data->cache[p_size] = fd;
return true;
}
_FORCE_INLINE_ void TextServerFallback::_font_clear_cache(FontDataFallback *p_font_data) {
for (const Map<Vector2i, FontDataForSizeFallback *>::Element *E = p_font_data->cache.front(); E; E = E->next()) {
memdelete(E->get());
}
p_font_data->cache.clear();
p_font_data->face_init = false;
p_font_data->supported_varaitions.clear();
}
RID TextServerFallback::create_font() {
FontDataFallback *fd = memnew(FontDataFallback);
return font_owner.make_rid(fd);
}
void TextServerFallback::font_set_data(RID p_font_rid, const PackedByteArray &p_data) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
_font_clear_cache(fd);
fd->data = p_data;
fd->data_ptr = fd->data.ptr();
fd->data_size = fd->data.size();
}
void TextServerFallback::font_set_data_ptr(RID p_font_rid, const uint8_t *p_data_ptr, size_t p_data_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
_font_clear_cache(fd);
fd->data.clear();
fd->data_ptr = p_data_ptr;
fd->data_size = p_data_size;
}
void TextServerFallback::font_set_antialiased(RID p_font_rid, bool p_antialiased) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->antialiased != p_antialiased) {
_font_clear_cache(fd);
fd->antialiased = p_antialiased;
}
}
bool TextServerFallback::font_is_antialiased(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->antialiased;
}
void TextServerFallback::font_set_multichannel_signed_distance_field(RID p_font_rid, bool p_msdf) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->msdf != p_msdf) {
_font_clear_cache(fd);
fd->msdf = p_msdf;
}
}
bool TextServerFallback::font_is_multichannel_signed_distance_field(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->msdf;
}
void TextServerFallback::font_set_msdf_pixel_range(RID p_font_rid, int p_msdf_pixel_range) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->msdf_range != p_msdf_pixel_range) {
_font_clear_cache(fd);
fd->msdf_range = p_msdf_pixel_range;
}
}
int TextServerFallback::font_get_msdf_pixel_range(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->msdf_range;
}
void TextServerFallback::font_set_msdf_size(RID p_font_rid, int p_msdf_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->msdf_source_size != p_msdf_size) {
_font_clear_cache(fd);
fd->msdf_source_size = p_msdf_size;
}
}
int TextServerFallback::font_get_msdf_size(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->msdf_source_size;
}
void TextServerFallback::font_set_fixed_size(RID p_font_rid, int p_fixed_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->fixed_size != p_fixed_size) {
fd->fixed_size = p_fixed_size;
}
}
int TextServerFallback::font_get_fixed_size(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->fixed_size;
}
void TextServerFallback::font_set_force_autohinter(RID p_font_rid, bool p_force_autohinter) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->force_autohinter != p_force_autohinter) {
_font_clear_cache(fd);
fd->force_autohinter = p_force_autohinter;
}
}
bool TextServerFallback::font_is_force_autohinter(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->force_autohinter;
}
void TextServerFallback::font_set_hinting(RID p_font_rid, TextServer::Hinting p_hinting) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->hinting != p_hinting) {
_font_clear_cache(fd);
fd->hinting = p_hinting;
}
}
TextServer::Hinting TextServerFallback::font_get_hinting(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, HINTING_NONE);
MutexLock lock(fd->mutex);
return fd->hinting;
}
void TextServerFallback::font_set_variation_coordinates(RID p_font_rid, const Dictionary &p_variation_coordinates) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->variation_coordinates != p_variation_coordinates) {
_font_clear_cache(fd);
fd->variation_coordinates = p_variation_coordinates;
}
}
Dictionary TextServerFallback::font_get_variation_coordinates(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Dictionary());
MutexLock lock(fd->mutex);
return fd->variation_coordinates;
}
void TextServerFallback::font_set_oversampling(RID p_font_rid, real_t p_oversampling) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->oversampling != p_oversampling) {
_font_clear_cache(fd);
fd->oversampling = p_oversampling;
}
}
real_t TextServerFallback::font_get_oversampling(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
return fd->oversampling;
}
Array TextServerFallback::font_get_size_cache_list(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Array());
MutexLock lock(fd->mutex);
Array ret;
for (const Map<Vector2i, FontDataForSizeFallback *>::Element *E = fd->cache.front(); E; E = E->next()) {
ret.push_back(E->key());
}
return ret;
}
void TextServerFallback::font_clear_size_cache(RID p_font_rid) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
for (const Map<Vector2i, FontDataForSizeFallback *>::Element *E = fd->cache.front(); E; E = E->next()) {
memdelete(E->get());
}
fd->cache.clear();
}
void TextServerFallback::font_remove_size_cache(RID p_font_rid, const Vector2i &p_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->cache.has(p_size)) {
memdelete(fd->cache[p_size]);
fd->cache.erase(p_size);
}
}
void TextServerFallback::font_set_ascent(RID p_font_rid, int p_size, real_t p_ascent) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->ascent = p_ascent;
}
real_t TextServerFallback::font_get_ascent(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0.f);
if (fd->msdf) {
return fd->cache[size]->ascent * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->ascent;
}
}
void TextServerFallback::font_set_descent(RID p_font_rid, int p_size, real_t p_descent) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->descent = p_descent;
}
real_t TextServerFallback::font_get_descent(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0.f);
if (fd->msdf) {
return fd->cache[size]->descent * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->descent;
}
}
void TextServerFallback::font_set_underline_position(RID p_font_rid, int p_size, real_t p_underline_position) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->underline_position = p_underline_position;
}
real_t TextServerFallback::font_get_underline_position(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0.f);
if (fd->msdf) {
return fd->cache[size]->underline_position * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->underline_position;
}
}
void TextServerFallback::font_set_underline_thickness(RID p_font_rid, int p_size, real_t p_underline_thickness) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->underline_thickness = p_underline_thickness;
}
real_t TextServerFallback::font_get_underline_thickness(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0.f);
if (fd->msdf) {
return fd->cache[size]->underline_thickness * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->underline_thickness;
}
}
void TextServerFallback::font_set_scale(RID p_font_rid, int p_size, real_t p_scale) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->scale = p_scale;
}
real_t TextServerFallback::font_get_scale(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0.f);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0.f);
if (fd->msdf) {
return fd->cache[size]->scale * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->scale / fd->cache[size]->oversampling;
}
}
void TextServerFallback::font_set_spacing(RID p_font_rid, int p_size, TextServer::SpacingType p_spacing, int p_value) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
switch (p_spacing) {
case TextServer::SPACING_GLYPH: {
fd->cache[size]->spacing_glyph = p_value;
} break;
case TextServer::SPACING_SPACE: {
fd->cache[size]->spacing_space = p_value;
} break;
default: {
ERR_FAIL_MSG("Invalid spacing type: " + itos(p_spacing));
} break;
}
}
int TextServerFallback::font_get_spacing(RID p_font_rid, int p_size, TextServer::SpacingType p_spacing) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0);
switch (p_spacing) {
case TextServer::SPACING_GLYPH: {
if (fd->msdf) {
return fd->cache[size]->spacing_glyph * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->spacing_glyph;
}
} break;
case TextServer::SPACING_SPACE: {
if (fd->msdf) {
return fd->cache[size]->spacing_space * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return fd->cache[size]->spacing_space;
}
} break;
default: {
ERR_FAIL_V_MSG(0, "Invalid spacing type: " + itos(p_spacing));
} break;
}
return 0;
}
int TextServerFallback::font_get_texture_count(RID p_font_rid, const Vector2i &p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, 0);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0);
return fd->cache[size]->textures.size();
}
void TextServerFallback::font_clear_textures(RID p_font_rid, const Vector2i &p_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->textures.clear();
}
void TextServerFallback::font_remove_texture(RID p_font_rid, const Vector2i &p_size, int p_texture_index) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
ERR_FAIL_INDEX(p_texture_index, fd->cache[size]->textures.size());
fd->cache[size]->textures.remove(p_texture_index);
}
void TextServerFallback::font_set_texture_image(RID p_font_rid, const Vector2i &p_size, int p_texture_index, const Ref<Image> &p_image) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
ERR_FAIL_COND(p_image.is_null());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
ERR_FAIL_COND(p_texture_index < 0);
if (p_texture_index >= fd->cache[size]->textures.size()) {
fd->cache[size]->textures.resize(p_texture_index + 1);
}
FontTexture &tex = fd->cache[size]->textures.write[p_texture_index];
tex.imgdata = p_image->get_data();
tex.texture_w = p_image->get_width();
tex.texture_h = p_image->get_height();
tex.format = p_image->get_format();
Ref<Image> img = memnew(Image(tex.texture_w, tex.texture_h, 0, tex.format, tex.imgdata));
tex.texture = Ref<ImageTexture>();
tex.texture.instantiate();
tex.texture->create_from_image(img);
}
Ref<Image> TextServerFallback::font_get_texture_image(RID p_font_rid, const Vector2i &p_size, int p_texture_index) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Ref<Image>());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Ref<Image>());
ERR_FAIL_INDEX_V(p_texture_index, fd->cache[size]->textures.size(), Ref<Image>());
const FontTexture &tex = fd->cache[size]->textures.write[p_texture_index];
Ref<Image> img = memnew(Image(tex.texture_w, tex.texture_h, 0, tex.format, tex.imgdata));
return img;
}
void TextServerFallback::font_set_texture_offsets(RID p_font_rid, const Vector2i &p_size, int p_texture_index, const PackedInt32Array &p_offset) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
if (p_texture_index >= fd->cache[size]->textures.size()) {
fd->cache[size]->textures.resize(p_texture_index + 1);
}
FontTexture &tex = fd->cache[size]->textures.write[p_texture_index];
tex.offsets = p_offset;
}
PackedInt32Array TextServerFallback::font_get_texture_offsets(RID p_font_rid, const Vector2i &p_size, int p_texture_index) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, PackedInt32Array());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), PackedInt32Array());
ERR_FAIL_INDEX_V(p_texture_index, fd->cache[size]->textures.size(), PackedInt32Array());
const FontTexture &tex = fd->cache[size]->textures.write[p_texture_index];
return tex.offsets;
}
Array TextServerFallback::font_get_glyph_list(RID p_font_rid, const Vector2i &p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Array());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Array());
Array ret;
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
const int32_t *E = nullptr;
while ((E = gl.next(E))) {
ret.push_back(*E);
}
return ret;
}
void TextServerFallback::font_clear_glyphs(RID p_font_rid, const Vector2i &p_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->glyph_map.clear();
}
void TextServerFallback::font_remove_glyph(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->glyph_map.erase(p_glyph);
}
Vector2 TextServerFallback::font_get_glyph_advance(RID p_font_rid, int p_size, int32_t p_glyph) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector2());
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
if (fd->msdf) {
return gl[p_glyph].advance * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return gl[p_glyph].advance;
}
}
void TextServerFallback::font_set_glyph_advance(RID p_font_rid, int p_size, int32_t p_glyph, const Vector2 &p_advance) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
gl[p_glyph].advance = p_advance;
gl[p_glyph].found = true;
}
Vector2 TextServerFallback::font_get_glyph_offset(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector2());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
if (fd->msdf) {
return gl[p_glyph].rect.position * (real_t)p_size.x / (real_t)fd->msdf_source_size;
} else {
return gl[p_glyph].rect.position;
}
}
void TextServerFallback::font_set_glyph_offset(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph, const Vector2 &p_offset) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
gl[p_glyph].rect.position = p_offset;
gl[p_glyph].found = true;
}
Vector2 TextServerFallback::font_get_glyph_size(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector2());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
if (fd->msdf) {
return gl[p_glyph].rect.size * (real_t)p_size.x / (real_t)fd->msdf_source_size;
} else {
return gl[p_glyph].rect.size;
}
}
void TextServerFallback::font_set_glyph_size(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph, const Vector2 &p_gl_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
gl[p_glyph].rect.size = p_gl_size;
gl[p_glyph].found = true;
}
Rect2 TextServerFallback::font_get_glyph_uv_rect(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Rect2());
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Rect2());
if (!_ensure_glyph(fd, size, p_glyph)) {
return Rect2(); // Invalid or non graphicl glyph, do not display errors.
}
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
return gl[p_glyph].uv_rect;
}
void TextServerFallback::font_set_glyph_uv_rect(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph, const Rect2 &p_uv_rect) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
gl[p_glyph].uv_rect = p_uv_rect;
gl[p_glyph].found = true;
}
int TextServerFallback::font_get_glyph_texture_idx(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, -1);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), -1);
if (!_ensure_glyph(fd, size, p_glyph)) {
return -1; // Invalid or non graphicl glyph, do not display errors.
}
const HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
return gl[p_glyph].texture_idx;
}
void TextServerFallback::font_set_glyph_texture_idx(RID p_font_rid, const Vector2i &p_size, int32_t p_glyph, int p_texture_idx) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
HashMap<int32_t, FontGlyph> &gl = fd->cache[size]->glyph_map;
gl[p_glyph].texture_idx = p_texture_idx;
gl[p_glyph].found = true;
}
bool TextServerFallback::font_get_glyph_contours(RID p_font_rid, int p_size, int32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), false);
#ifdef MODULE_FREETYPE_ENABLED
int error = FT_Load_Glyph(fd->cache[size]->face, FT_Get_Char_Index(fd->cache[size]->face, p_index), FT_LOAD_NO_BITMAP | (fd->force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0));
ERR_FAIL_COND_V(error, false);
r_points.clear();
r_contours.clear();
real_t h = fd->cache[size]->ascent;
real_t scale = (1.0 / 64.0) / fd->cache[size]->oversampling * fd->cache[size]->scale;
if (fd->msdf) {
scale = scale * (real_t)p_size / (real_t)fd->msdf_source_size;
}
for (short i = 0; i < fd->cache[size]->face->glyph->outline.n_points; i++) {
r_points.push_back(Vector3(fd->cache[size]->face->glyph->outline.points[i].x * scale, h - fd->cache[size]->face->glyph->outline.points[i].y * scale, FT_CURVE_TAG(fd->cache[size]->face->glyph->outline.tags[i])));
}
for (short i = 0; i < fd->cache[size]->face->glyph->outline.n_contours; i++) {
r_contours.push_back(fd->cache[size]->face->glyph->outline.contours[i]);
}
r_orientation = (FT_Outline_Get_Orientation(&fd->cache[size]->face->glyph->outline) == FT_ORIENTATION_FILL_RIGHT);
#else
return false;
#endif
return true;
}
Array TextServerFallback::font_get_kerning_list(RID p_font_rid, int p_size) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Array());
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Array());
Array ret;
for (const Map<Vector2i, Vector2>::Element *E = fd->cache[size]->kerning_map.front(); E; E = E->next()) {
ret.push_back(E->key());
}
return ret;
}
void TextServerFallback::font_clear_kerning_map(RID p_font_rid, int p_size) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->kerning_map.clear();
}
void TextServerFallback::font_remove_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->kerning_map.erase(p_glyph_pair);
}
void TextServerFallback::font_set_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair, const Vector2 &p_kerning) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->cache[size]->kerning_map[p_glyph_pair] = p_kerning;
}
Vector2 TextServerFallback::font_get_kerning(RID p_font_rid, int p_size, const Vector2i &p_glyph_pair) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector2());
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
const Map<Vector2i, Vector2> &kern = fd->cache[size]->kerning_map;
if (kern.has(p_glyph_pair)) {
if (fd->msdf) {
return kern[p_glyph_pair] * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return kern[p_glyph_pair];
}
} else {
#ifdef MODULE_FREETYPE_ENABLED
if (fd->cache[size]->face) {
FT_Vector delta;
int32_t glyph_a = FT_Get_Char_Index(fd->cache[size]->face, p_glyph_pair.x);
int32_t glyph_b = FT_Get_Char_Index(fd->cache[size]->face, p_glyph_pair.y);
FT_Get_Kerning(fd->cache[size]->face, glyph_a, glyph_b, FT_KERNING_DEFAULT, &delta);
if (fd->msdf) {
return Vector2(delta.x, delta.y) * (real_t)p_size / (real_t)fd->msdf_source_size;
} else {
return Vector2(delta.x, delta.y);
}
}
#endif
}
return Vector2();
}
int32_t TextServerFallback::font_get_glyph_index(RID p_font_rid, int p_size, char32_t p_char, char32_t p_variation_selector) const {
return (int32_t)p_char;
}
bool TextServerFallback::font_has_char(RID p_font_rid, char32_t p_char) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
if (fd->cache.is_empty()) {
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, fd->msdf ? Vector2i(fd->msdf_source_size, 0) : Vector2i(16, 0)), false);
}
FontDataForSizeFallback *at_size = fd->cache.front()->get();
#ifdef MODULE_FREETYPE_ENABLED
if (at_size && at_size->face) {
return FT_Get_Char_Index(at_size->face, p_char) != 0;
}
#endif
return (at_size) ? at_size->glyph_map.has((int32_t)p_char) : false;
}
String TextServerFallback::font_get_supported_chars(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, String());
MutexLock lock(fd->mutex);
if (fd->cache.is_empty()) {
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, fd->msdf ? Vector2i(fd->msdf_source_size, 0) : Vector2i(16, 0)), String());
}
FontDataForSizeFallback *at_size = fd->cache.front()->get();
String chars;
#ifdef MODULE_FREETYPE_ENABLED
if (at_size && at_size->face) {
FT_UInt gindex;
FT_ULong charcode = FT_Get_First_Char(at_size->face, &gindex);
while (gindex != 0) {
if (charcode != 0) {
chars += char32_t(charcode);
}
charcode = FT_Get_Next_Char(at_size->face, charcode, &gindex);
}
return chars;
}
#endif
if (at_size) {
const HashMap<int32_t, FontGlyph> &gl = at_size->glyph_map;
const int32_t *E = nullptr;
while ((E = gl.next(E))) {
chars += char32_t(*E);
}
}
return chars;
}
void TextServerFallback::font_render_range(RID p_font_rid, const Vector2i &p_size, char32_t p_start, char32_t p_end) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
for (char32_t i = p_start; i <= p_end; i++) {
_ensure_glyph(fd, size, (int32_t)i);
}
}
void TextServerFallback::font_render_glyph(RID p_font_rid, const Vector2i &p_size, int32_t p_index) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
ERR_FAIL_COND(!_ensure_glyph(fd, size, p_index));
}
void TextServerFallback::font_draw_glyph(RID p_font_rid, RID p_canvas, int p_size, const Vector2 &p_pos, int32_t p_index, const Color &p_color) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
if (!_ensure_glyph(fd, size, p_index)) {
return; // // Invalid or non graphicl glyph, do not display errors, nothing to draw.
}
const FontGlyph &gl = fd->cache[size]->glyph_map[p_index];
if (gl.found) {
ERR_FAIL_COND(gl.texture_idx < -1 || gl.texture_idx >= fd->cache[size]->textures.size());
if (gl.texture_idx != -1) {
Color modulate = p_color;
#ifdef MODULE_FREETYPE_ENABLED
if (fd->cache[size]->face && FT_HAS_COLOR(fd->cache[size]->face)) {
modulate.r = modulate.g = modulate.b = 1.0;
}
#endif
if (RenderingServer::get_singleton() != nullptr) {
RID texture = fd->cache[size]->textures[gl.texture_idx].texture->get_rid();
if (fd->msdf) {
Point2 cpos = p_pos;
cpos += gl.rect.position * (real_t)p_size / (real_t)fd->msdf_source_size;
Size2 csize = gl.rect.size * (real_t)p_size / (real_t)fd->msdf_source_size;
RenderingServer::get_singleton()->canvas_item_add_msdf_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, 0, fd->msdf_range);
} else {
Point2i cpos = p_pos;
cpos += gl.rect.position;
Size2i csize = gl.rect.size;
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
}
}
}
}
}
void TextServerFallback::font_draw_glyph_outline(RID p_font_rid, RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, int32_t p_index, const Color &p_color) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size_outline(fd, Vector2i(p_size, p_outline_size));
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
if (!_ensure_glyph(fd, size, p_index)) {
return; // // Invalid or non graphicl glyph, do not display errors, nothing to draw.
}
const FontGlyph &gl = fd->cache[size]->glyph_map[p_index];
if (gl.found) {
ERR_FAIL_COND(gl.texture_idx < -1 || gl.texture_idx >= fd->cache[size]->textures.size());
if (gl.texture_idx != -1) {
Color modulate = p_color;
#ifdef MODULE_FREETYPE_ENABLED
if (fd->cache[size]->face && FT_HAS_COLOR(fd->cache[size]->face)) {
modulate.r = modulate.g = modulate.b = 1.0;
}
#endif
if (RenderingServer::get_singleton() != nullptr) {
RID texture = fd->cache[size]->textures[gl.texture_idx].texture->get_rid();
if (fd->msdf) {
Point2 cpos = p_pos;
cpos += gl.rect.position * (real_t)p_size / (real_t)fd->msdf_source_size;
Size2 csize = gl.rect.size * (real_t)p_size / (real_t)fd->msdf_source_size;
RenderingServer::get_singleton()->canvas_item_add_msdf_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, p_outline_size * 2, fd->msdf_range);
} else {
Point2i cpos = p_pos;
cpos += gl.rect.position;
Size2i csize = gl.rect.size;
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
}
}
}
}
}
bool TextServerFallback::font_is_language_supported(RID p_font_rid, const String &p_language) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
if (fd->language_support_overrides.has(p_language)) {
return fd->language_support_overrides[p_language];
} else {
return true;
}
}
void TextServerFallback::font_set_language_support_override(RID p_font_rid, const String &p_language, bool p_supported) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
fd->language_support_overrides[p_language] = p_supported;
}
bool TextServerFallback::font_get_language_support_override(RID p_font_rid, const String &p_language) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->language_support_overrides[p_language];
}
void TextServerFallback::font_remove_language_support_override(RID p_font_rid, const String &p_language) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
fd->language_support_overrides.erase(p_language);
}
Vector<String> TextServerFallback::font_get_language_support_overrides(RID p_font_rid) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector<String>());
MutexLock lock(fd->mutex);
Vector<String> out;
for (const Map<String, bool>::Element *E = fd->language_support_overrides.front(); E; E = E->next()) {
out.push_back(E->key());
}
return out;
}
bool TextServerFallback::font_is_script_supported(RID p_font_rid, const String &p_script) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
if (fd->script_support_overrides.has(p_script)) {
return fd->script_support_overrides[p_script];
} else {
return true;
}
}
void TextServerFallback::font_set_script_support_override(RID p_font_rid, const String &p_script, bool p_supported) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
fd->script_support_overrides[p_script] = p_supported;
}
bool TextServerFallback::font_get_script_support_override(RID p_font_rid, const String &p_script) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
MutexLock lock(fd->mutex);
return fd->script_support_overrides[p_script];
}
void TextServerFallback::font_remove_script_support_override(RID p_font_rid, const String &p_script) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, 16);
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
fd->script_support_overrides.erase(p_script);
}
Vector<String> TextServerFallback::font_get_script_support_overrides(RID p_font_rid) {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Vector<String>());
MutexLock lock(fd->mutex);
Vector<String> out;
for (const Map<String, bool>::Element *E = fd->script_support_overrides.front(); E; E = E->next()) {
out.push_back(E->key());
}
return out;
}
Dictionary TextServerFallback::font_supported_feature_list(RID p_font_rid) const {
return Dictionary();
}
Dictionary TextServerFallback::font_supported_variation_list(RID p_font_rid) const {
FontDataFallback *fd = font_owner.getornull(p_font_rid);
ERR_FAIL_COND_V(!fd, Dictionary());
MutexLock lock(fd->mutex);
Vector2i size = _get_size(fd, 16);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Dictionary());
return fd->supported_varaitions;
}
real_t TextServerFallback::font_get_global_oversampling() const {
return oversampling;
}
void TextServerFallback::font_set_global_oversampling(real_t p_oversampling) {
_THREAD_SAFE_METHOD_
if (oversampling != p_oversampling) {
oversampling = p_oversampling;
List<RID> fonts;
font_owner.get_owned_list(&fonts);
bool font_cleared = false;
for (const RID &E : fonts) {
if (!font_is_multichannel_signed_distance_field(E) && font_get_oversampling(E) <= 0) {
font_clear_size_cache(E);
font_cleared = true;
}
}
if (font_cleared) {
List<RID> text_bufs;
shaped_owner.get_owned_list(&text_bufs);
for (const RID &E : text_bufs) {
invalidate(shaped_owner.getornull(E));
}
}
}
}
/*************************************************************************/
/* Shaped text buffer interface */
/*************************************************************************/
void TextServerFallback::invalidate(ShapedTextData *p_shaped) {
p_shaped->valid = false;
p_shaped->sort_valid = false;
p_shaped->line_breaks_valid = false;
p_shaped->justification_ops_valid = false;
p_shaped->ascent = 0.f;
p_shaped->descent = 0.f;
p_shaped->width = 0.f;
p_shaped->upos = 0.f;
p_shaped->uthk = 0.f;
p_shaped->glyphs.clear();
p_shaped->glyphs_logical.clear();
}
void TextServerFallback::full_copy(ShapedTextData *p_shaped) {
ShapedTextData *parent = shaped_owner.getornull(p_shaped->parent);
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = parent->objects.front(); E; E = E->next()) {
if (E->get().pos >= p_shaped->start && E->get().pos < p_shaped->end) {
p_shaped->objects[E->key()] = E->get();
}
}
for (int k = 0; k < parent->spans.size(); k++) {
ShapedTextData::Span span = parent->spans[k];
if (span.start >= p_shaped->end || span.end <= p_shaped->start) {
continue;
}
span.start = MAX(p_shaped->start, span.start);
span.end = MIN(p_shaped->end, span.end);
p_shaped->spans.push_back(span);
}
p_shaped->parent = RID();
}
RID TextServerFallback::create_shaped_text(TextServer::Direction p_direction, TextServer::Orientation p_orientation) {
_THREAD_SAFE_METHOD_
ShapedTextData *sd = memnew(ShapedTextData);
sd->direction = p_direction;
sd->orientation = p_orientation;
return shaped_owner.make_rid(sd);
}
void TextServerFallback::shaped_text_clear(RID p_shaped) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND(!sd);
MutexLock lock(sd->mutex);
sd->parent = RID();
sd->start = 0;
sd->end = 0;
sd->text = String();
sd->spans.clear();
sd->objects.clear();
invalidate(sd);
}
void TextServerFallback::shaped_text_set_direction(RID p_shaped, TextServer::Direction p_direction) {
if (p_direction == DIRECTION_RTL) {
ERR_PRINT_ONCE("Right-to-left layout is not supported by this text server.");
}
}
TextServer::Direction TextServerFallback::shaped_text_get_direction(RID p_shaped) const {
return TextServer::DIRECTION_LTR;
}
void TextServerFallback::shaped_text_set_orientation(RID p_shaped, TextServer::Orientation p_orientation) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND(!sd);
MutexLock lock(sd->mutex);
if (sd->orientation != p_orientation) {
if (sd->parent != RID()) {
full_copy(sd);
}
sd->orientation = p_orientation;
invalidate(sd);
}
}
void TextServerFallback::shaped_text_set_bidi_override(RID p_shaped, const Vector<Vector2i> &p_override) {
// No BiDi support, ignore.
}
TextServer::Orientation TextServerFallback::shaped_text_get_orientation(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, TextServer::ORIENTATION_HORIZONTAL);
MutexLock lock(sd->mutex);
return sd->orientation;
}
void TextServerFallback::shaped_text_set_preserve_invalid(RID p_shaped, bool p_enabled) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
MutexLock lock(sd->mutex);
ERR_FAIL_COND(!sd);
if (sd->preserve_invalid != p_enabled) {
if (sd->parent != RID()) {
full_copy(sd);
}
sd->preserve_invalid = p_enabled;
invalidate(sd);
}
}
bool TextServerFallback::shaped_text_get_preserve_invalid(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
return sd->preserve_invalid;
}
void TextServerFallback::shaped_text_set_preserve_control(RID p_shaped, bool p_enabled) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND(!sd);
MutexLock lock(sd->mutex);
if (sd->preserve_control != p_enabled) {
if (sd->parent != RID()) {
full_copy(sd);
}
sd->preserve_control = p_enabled;
invalidate(sd);
}
}
bool TextServerFallback::shaped_text_get_preserve_control(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
return sd->preserve_control;
}
bool TextServerFallback::shaped_text_add_string(RID p_shaped, const String &p_text, const Vector<RID> &p_fonts, int p_size, const Dictionary &p_opentype_features, const String &p_language) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
ERR_FAIL_COND_V(p_size <= 0, false);
for (int i = 0; i < p_fonts.size(); i++) {
ERR_FAIL_COND_V(!font_owner.getornull(p_fonts[i]), false);
}
if (p_text.is_empty()) {
return true;
}
if (sd->parent != RID()) {
full_copy(sd);
}
ShapedTextData::Span span;
span.start = sd->text.length();
span.end = span.start + p_text.length();
// Pre-sort fonts, push fonts with the language support first.
Vector<RID> fonts_no_match;
int font_count = p_fonts.size();
for (int i = 0; i < font_count; i++) {
if (font_is_language_supported(p_fonts[i], p_language)) {
span.fonts.push_back(p_fonts[i]);
} else {
fonts_no_match.push_back(p_fonts[i]);
}
}
span.fonts.append_array(fonts_no_match);
ERR_FAIL_COND_V(span.fonts.is_empty(), false);
span.font_size = p_size;
span.language = p_language;
sd->spans.push_back(span);
sd->text += p_text;
sd->end += p_text.length();
invalidate(sd);
return true;
}
bool TextServerFallback::shaped_text_add_object(RID p_shaped, Variant p_key, const Size2 &p_size, InlineAlign p_inline_align, int p_length) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
ERR_FAIL_COND_V(p_key == Variant(), false);
ERR_FAIL_COND_V(sd->objects.has(p_key), false);
if (sd->parent != RID()) {
full_copy(sd);
}
ShapedTextData::Span span;
span.start = sd->text.length();
span.end = span.start + p_length;
span.embedded_key = p_key;
ShapedTextData::EmbeddedObject obj;
obj.inline_align = p_inline_align;
obj.rect.size = p_size;
obj.pos = span.start;
sd->spans.push_back(span);
sd->text += String::chr(0xfffc).repeat(p_length);
sd->end += p_length;
sd->objects[p_key] = obj;
invalidate(sd);
return true;
}
bool TextServerFallback::shaped_text_resize_object(RID p_shaped, Variant p_key, const Size2 &p_size, InlineAlign p_inline_align) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
ERR_FAIL_COND_V(!sd->objects.has(p_key), false);
sd->objects[p_key].rect.size = p_size;
sd->objects[p_key].inline_align = p_inline_align;
if (sd->valid) {
// Recalc string metrics.
sd->ascent = 0;
sd->descent = 0;
sd->width = 0;
sd->upos = 0;
sd->uthk = 0;
int sd_size = sd->glyphs.size();
for (int i = 0; i < sd_size; i++) {
Glyph gl = sd->glyphs[i];
Variant key;
if (gl.count == 1) {
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = sd->objects.front(); E; E = E->next()) {
if (E->get().pos == gl.start) {
key = E->key();
break;
}
}
}
if (key != Variant()) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
sd->objects[key].rect.position.x = sd->width;
sd->width += sd->objects[key].rect.size.x;
sd->glyphs.write[i].advance = sd->objects[key].rect.size.x;
} else {
sd->objects[key].rect.position.y = sd->width;
sd->width += sd->objects[key].rect.size.y;
sd->glyphs.write[i].advance = sd->objects[key].rect.size.y;
}
} else {
if (gl.font_rid.is_valid()) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
sd->ascent = MAX(sd->ascent, font_get_ascent(gl.font_rid, gl.font_size));
sd->descent = MAX(sd->descent, font_get_descent(gl.font_rid, gl.font_size));
} else {
sd->ascent = MAX(sd->ascent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
sd->descent = MAX(sd->descent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
}
sd->upos = MAX(sd->upos, font_get_underline_position(gl.font_rid, gl.font_size));
sd->uthk = MAX(sd->uthk, font_get_underline_thickness(gl.font_rid, gl.font_size));
} else if (sd->preserve_invalid || (sd->preserve_control && is_control(gl.index))) {
// Glyph not found, replace with hex code box.
if (sd->orientation == ORIENTATION_HORIZONTAL) {
sd->ascent = MAX(sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.75f));
sd->descent = MAX(sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.25f));
} else {
sd->ascent = MAX(sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
sd->descent = MAX(sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
}
}
sd->width += gl.advance * gl.repeat;
}
}
// Align embedded objects to baseline.
real_t full_ascent = sd->ascent;
real_t full_descent = sd->descent;
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = sd->objects.front(); E; E = E->next()) {
if ((E->get().pos >= sd->start) && (E->get().pos < sd->end)) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.y = -sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.y = (-sd->ascent + sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.y = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.y = sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.y -= E->get().rect.size.y;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.y -= E->get().rect.size.y / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.y);
full_descent = MAX(full_descent, E->get().rect.position.y + E->get().rect.size.y);
} else {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.x = -sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.x = (-sd->ascent + sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.x = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.x = sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.x -= E->get().rect.size.x;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.x -= E->get().rect.size.x / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.x);
full_descent = MAX(full_descent, E->get().rect.position.x + E->get().rect.size.x);
}
}
}
sd->ascent = full_ascent;
sd->descent = full_descent;
}
return true;
}
RID TextServerFallback::shaped_text_substr(RID p_shaped, int p_start, int p_length) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, RID());
MutexLock lock(sd->mutex);
if (sd->parent != RID()) {
return shaped_text_substr(sd->parent, p_start, p_length);
}
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
ERR_FAIL_COND_V(p_start < 0 || p_length < 0, RID());
ERR_FAIL_COND_V(sd->start > p_start || sd->end < p_start, RID());
ERR_FAIL_COND_V(sd->end < p_start + p_length, RID());
ShapedTextData *new_sd = memnew(ShapedTextData);
new_sd->parent = p_shaped;
new_sd->start = p_start;
new_sd->end = p_start + p_length;
new_sd->orientation = sd->orientation;
new_sd->direction = sd->direction;
new_sd->para_direction = sd->para_direction;
new_sd->line_breaks_valid = sd->line_breaks_valid;
new_sd->justification_ops_valid = sd->justification_ops_valid;
new_sd->sort_valid = false;
new_sd->upos = sd->upos;
new_sd->uthk = sd->uthk;
if (p_length > 0) {
new_sd->text = sd->text.substr(p_start, p_length);
int sd_size = sd->glyphs.size();
const Glyph *sd_glyphs = sd->glyphs.ptr();
for (int i = 0; i < sd_size; i++) {
if ((sd_glyphs[i].start >= new_sd->start) && (sd_glyphs[i].end <= new_sd->end)) {
Glyph gl = sd_glyphs[i];
Variant key;
bool find_embedded = false;
if (gl.count == 1) {
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = sd->objects.front(); E; E = E->next()) {
if (E->get().pos == gl.start) {
find_embedded = true;
key = E->key();
new_sd->objects[key] = E->get();
break;
}
}
}
if (find_embedded) {
if (new_sd->orientation == ORIENTATION_HORIZONTAL) {
new_sd->objects[key].rect.position.x = new_sd->width;
new_sd->width += new_sd->objects[key].rect.size.x;
} else {
new_sd->objects[key].rect.position.y = new_sd->width;
new_sd->width += new_sd->objects[key].rect.size.y;
}
} else {
if (gl.font_rid.is_valid()) {
if (new_sd->orientation == ORIENTATION_HORIZONTAL) {
new_sd->ascent = MAX(new_sd->ascent, font_get_ascent(gl.font_rid, gl.font_size));
new_sd->descent = MAX(new_sd->descent, font_get_descent(gl.font_rid, gl.font_size));
} else {
new_sd->ascent = MAX(new_sd->ascent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
new_sd->descent = MAX(new_sd->descent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
}
} else if (new_sd->preserve_invalid || (new_sd->preserve_control && is_control(gl.index))) {
// Glyph not found, replace with hex code box.
if (new_sd->orientation == ORIENTATION_HORIZONTAL) {
new_sd->ascent = MAX(new_sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.75f));
new_sd->descent = MAX(new_sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.25f));
} else {
new_sd->ascent = MAX(new_sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
new_sd->descent = MAX(new_sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
}
}
new_sd->width += gl.advance * gl.repeat;
}
new_sd->glyphs.push_back(gl);
}
}
// Align embedded objects to baseline.
real_t full_ascent = new_sd->ascent;
real_t full_descent = new_sd->descent;
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = new_sd->objects.front(); E; E = E->next()) {
if ((E->get().pos >= new_sd->start) && (E->get().pos < new_sd->end)) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.y = -new_sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.y = (-new_sd->ascent + new_sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.y = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.y = new_sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.y -= E->get().rect.size.y;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.y -= E->get().rect.size.y / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.y);
full_descent = MAX(full_descent, E->get().rect.position.y + E->get().rect.size.y);
} else {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.x = -new_sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.x = (-new_sd->ascent + new_sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.x = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.x = new_sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.x -= E->get().rect.size.x;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.x -= E->get().rect.size.x / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.x);
full_descent = MAX(full_descent, E->get().rect.position.x + E->get().rect.size.x);
}
}
}
new_sd->ascent = full_ascent;
new_sd->descent = full_descent;
}
new_sd->valid = true;
return shaped_owner.make_rid(new_sd);
}
RID TextServerFallback::shaped_text_get_parent(RID p_shaped) const {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, RID());
MutexLock lock(sd->mutex);
return sd->parent;
}
real_t TextServerFallback::shaped_text_fit_to_width(RID p_shaped, real_t p_width, uint8_t /*JustificationFlag*/ p_jst_flags) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
if (!sd->justification_ops_valid) {
const_cast<TextServerFallback *>(this)->shaped_text_update_justification_ops(p_shaped);
}
int start_pos = 0;
int end_pos = sd->glyphs.size() - 1;
if ((p_jst_flags & JUSTIFICATION_AFTER_LAST_TAB) == JUSTIFICATION_AFTER_LAST_TAB) {
int start, end, delta;
if (sd->para_direction == DIRECTION_LTR) {
start = sd->glyphs.size() - 1;
end = -1;
delta = -1;
} else {
start = 0;
end = sd->glyphs.size();
delta = +1;
}
for (int i = start; i != end; i += delta) {
if ((sd->glyphs[i].flags & GRAPHEME_IS_TAB) == GRAPHEME_IS_TAB) {
if (sd->para_direction == DIRECTION_LTR) {
start_pos = i;
break;
} else {
end_pos = i;
break;
}
}
}
}
if ((p_jst_flags & JUSTIFICATION_TRIM_EDGE_SPACES) == JUSTIFICATION_TRIM_EDGE_SPACES) {
while ((start_pos < end_pos) && ((sd->glyphs[start_pos].flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE || (sd->glyphs[start_pos].flags & GRAPHEME_IS_BREAK_HARD) == GRAPHEME_IS_BREAK_HARD || (sd->glyphs[start_pos].flags & GRAPHEME_IS_BREAK_SOFT) == GRAPHEME_IS_BREAK_SOFT)) {
sd->width -= sd->glyphs[start_pos].advance * sd->glyphs[start_pos].repeat;
sd->glyphs.write[start_pos].advance = 0;
start_pos += sd->glyphs[start_pos].count;
}
while ((start_pos < end_pos) && ((sd->glyphs[end_pos].flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE || (sd->glyphs[end_pos].flags & GRAPHEME_IS_BREAK_HARD) == GRAPHEME_IS_BREAK_HARD || (sd->glyphs[end_pos].flags & GRAPHEME_IS_BREAK_SOFT) == GRAPHEME_IS_BREAK_SOFT)) {
sd->width -= sd->glyphs[end_pos].advance * sd->glyphs[end_pos].repeat;
sd->glyphs.write[end_pos].advance = 0;
end_pos -= sd->glyphs[end_pos].count;
}
}
int space_count = 0;
for (int i = start_pos; i <= end_pos; i++) {
const Glyph &gl = sd->glyphs[i];
if (gl.count > 0) {
if ((gl.flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE) {
space_count++;
}
}
}
if ((space_count > 0) && ((p_jst_flags & JUSTIFICATION_WORD_BOUND) == JUSTIFICATION_WORD_BOUND)) {
real_t delta_width_per_space = (p_width - sd->width) / space_count;
for (int i = start_pos; i <= end_pos; i++) {
Glyph &gl = sd->glyphs.write[i];
if (gl.count > 0) {
if ((gl.flags & GRAPHEME_IS_SPACE) == GRAPHEME_IS_SPACE) {
real_t old_adv = gl.advance;
gl.advance = MAX(gl.advance + delta_width_per_space, Math::round(0.1 * gl.font_size));
sd->width += (gl.advance - old_adv);
}
}
}
}
return sd->width;
}
real_t TextServerFallback::shaped_text_tab_align(RID p_shaped, const Vector<real_t> &p_tab_stops) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
if (!sd->line_breaks_valid) {
const_cast<TextServerFallback *>(this)->shaped_text_update_breaks(p_shaped);
}
int tab_index = 0;
real_t off = 0.f;
int start, end, delta;
if (sd->para_direction == DIRECTION_LTR) {
start = 0;
end = sd->glyphs.size();
delta = +1;
} else {
start = sd->glyphs.size() - 1;
end = -1;
delta = -1;
}
Glyph *gl = sd->glyphs.ptrw();
for (int i = start; i != end; i += delta) {
if ((gl[i].flags & GRAPHEME_IS_TAB) == GRAPHEME_IS_TAB) {
real_t tab_off = 0.f;
while (tab_off <= off) {
tab_off += p_tab_stops[tab_index];
tab_index++;
if (tab_index >= p_tab_stops.size()) {
tab_index = 0;
}
}
real_t old_adv = gl[i].advance;
gl[i].advance = tab_off - off;
sd->width += gl[i].advance - old_adv;
off = 0;
continue;
}
off += gl[i].advance * gl[i].repeat;
}
return 0.f;
}
bool TextServerFallback::shaped_text_update_breaks(RID p_shaped) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
if (!sd->valid) {
shaped_text_shape(p_shaped);
}
if (sd->line_breaks_valid) {
return true; // Nothing to do.
}
int sd_size = sd->glyphs.size();
for (int i = 0; i < sd_size; i++) {
if (sd->glyphs[i].count > 0) {
char32_t c = sd->text[sd->glyphs[i].start];
if (is_punct(c)) {
sd->glyphs.write[i].flags |= GRAPHEME_IS_PUNCTUATION;
}
if (is_underscore(c)) {
sd->glyphs.write[i].flags |= GRAPHEME_IS_UNDERSCORE;
}
if (is_whitespace(c) && !is_linebreak(c)) {
sd->glyphs.write[i].flags |= GRAPHEME_IS_SPACE;
sd->glyphs.write[i].flags |= GRAPHEME_IS_BREAK_SOFT;
}
if (is_linebreak(c)) {
sd->glyphs.write[i].flags |= GRAPHEME_IS_BREAK_HARD;
}
if (c == 0x0009 || c == 0x000b) {
sd->glyphs.write[i].flags |= GRAPHEME_IS_TAB;
}
i += (sd->glyphs[i].count - 1);
}
}
sd->line_breaks_valid = true;
return sd->line_breaks_valid;
}
bool TextServerFallback::shaped_text_update_justification_ops(RID p_shaped) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
if (!sd->valid) {
shaped_text_shape(p_shaped);
}
if (!sd->line_breaks_valid) {
shaped_text_update_breaks(p_shaped);
}
sd->justification_ops_valid = true; // Not supported by fallback server.
return true;
}
void TextServerFallback::shaped_text_overrun_trim_to_width(RID p_shaped_line, real_t p_width, uint8_t p_trim_flags) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped_line);
ERR_FAIL_COND_MSG(!sd, "ShapedTextDataFallback invalid.");
MutexLock lock(sd->mutex);
if (!sd->valid) {
shaped_text_shape(p_shaped_line);
}
sd->text_trimmed = false;
sd->overrun_trim_data.ellipsis_glyph_buf.clear();
bool add_ellipsis = (p_trim_flags & OVERRUN_ADD_ELLIPSIS) == OVERRUN_ADD_ELLIPSIS;
bool cut_per_word = (p_trim_flags & OVERRUN_TRIM_WORD_ONLY) == OVERRUN_TRIM_WORD_ONLY;
bool enforce_ellipsis = (p_trim_flags & OVERRUN_ENFORCE_ELLIPSIS) == OVERRUN_ENFORCE_ELLIPSIS;
bool justification_aware = (p_trim_flags & OVERRUN_JUSTIFICATION_AWARE) == OVERRUN_JUSTIFICATION_AWARE;
Glyph *sd_glyphs = sd->glyphs.ptrw();
if ((p_trim_flags & OVERRUN_TRIM) == OVERRUN_NO_TRIMMING || sd_glyphs == nullptr || p_width <= 0 || !(sd->width > p_width || enforce_ellipsis)) {
sd->overrun_trim_data.trim_pos = -1;
sd->overrun_trim_data.ellipsis_pos = -1;
return;
}
if (justification_aware && !sd->fit_width_minimum_reached) {
return;
}
int sd_size = sd->glyphs.size();
RID last_gl_font_rid = sd_glyphs[sd_size - 1].font_rid;
int last_gl_font_size = sd_glyphs[sd_size - 1].font_size;
int32_t dot_gl_idx = font_get_glyph_index(last_gl_font_rid, '.', 0);
Vector2 dot_adv = font_get_glyph_advance(last_gl_font_rid, last_gl_font_size, dot_gl_idx);
int32_t whitespace_gl_idx = font_get_glyph_index(last_gl_font_rid, ' ', 0);
Vector2 whitespace_adv = font_get_glyph_advance(last_gl_font_rid, last_gl_font_size, whitespace_gl_idx);
int ellipsis_width = 0;
if (add_ellipsis) {
ellipsis_width = 3 * dot_adv.x + font_get_spacing(last_gl_font_rid, last_gl_font_size, TextServer::SPACING_GLYPH) + (cut_per_word ? whitespace_adv.x : 0);
}
int ell_min_characters = 6;
real_t width = sd->width;
int trim_pos = 0;
int ellipsis_pos = (enforce_ellipsis) ? 0 : -1;
int last_valid_cut = 0;
bool found = false;
for (int i = sd_size - 1; i != -1; i--) {
width -= sd_glyphs[i].advance * sd_glyphs[i].repeat;
if (sd_glyphs[i].count > 0) {
bool above_min_char_treshold = (i >= ell_min_characters);
if (width + (((above_min_char_treshold && add_ellipsis) || enforce_ellipsis) ? ellipsis_width : 0) <= p_width) {
if (cut_per_word && above_min_char_treshold) {
if ((sd_glyphs[i].flags & GRAPHEME_IS_BREAK_SOFT) == GRAPHEME_IS_BREAK_SOFT) {
last_valid_cut = i;
found = true;
}
} else {
last_valid_cut = i;
found = true;
}
if (found) {
trim_pos = last_valid_cut;
if (add_ellipsis && (above_min_char_treshold || enforce_ellipsis) && width - ellipsis_width <= p_width) {
ellipsis_pos = trim_pos;
}
break;
}
}
}
}
sd->overrun_trim_data.trim_pos = trim_pos;
sd->overrun_trim_data.ellipsis_pos = ellipsis_pos;
if (trim_pos == 0 && enforce_ellipsis && add_ellipsis) {
sd->overrun_trim_data.ellipsis_pos = 0;
}
if ((trim_pos >= 0 && sd->width > p_width) || enforce_ellipsis) {
if (add_ellipsis && (ellipsis_pos > 0 || enforce_ellipsis)) {
// Insert an additional space when cutting word bound for aesthetics.
if (cut_per_word && (ellipsis_pos > 0)) {
TextServer::Glyph gl;
gl.count = 1;
gl.advance = whitespace_adv.x;
gl.index = whitespace_gl_idx;
gl.font_rid = last_gl_font_rid;
gl.font_size = last_gl_font_size;
gl.flags = GRAPHEME_IS_SPACE | GRAPHEME_IS_BREAK_SOFT | GRAPHEME_IS_VIRTUAL;
sd->overrun_trim_data.ellipsis_glyph_buf.append(gl);
}
// Add ellipsis dots.
TextServer::Glyph gl;
gl.count = 1;
gl.repeat = 3;
gl.advance = dot_adv.x;
gl.index = dot_gl_idx;
gl.font_rid = last_gl_font_rid;
gl.font_size = last_gl_font_size;
gl.flags = GRAPHEME_IS_PUNCTUATION | GRAPHEME_IS_VIRTUAL;
sd->overrun_trim_data.ellipsis_glyph_buf.append(gl);
}
sd->text_trimmed = true;
sd->width_trimmed = width + ((ellipsis_pos != -1) ? ellipsis_width : 0);
}
}
TextServer::TrimData TextServerFallback::shaped_text_get_trim_data(RID p_shaped) const {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V_MSG(!sd, TrimData(), "ShapedTextDataFallback invalid.");
MutexLock lock(sd->mutex);
return sd->overrun_trim_data;
}
bool TextServerFallback::shaped_text_shape(RID p_shaped) {
ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
if (sd->valid) {
return true;
}
if (sd->parent != RID()) {
full_copy(sd);
}
// Cleanup.
sd->justification_ops_valid = false;
sd->line_breaks_valid = false;
sd->ascent = 0.f;
sd->descent = 0.f;
sd->width = 0.f;
sd->glyphs.clear();
if (sd->text.length() == 0) {
sd->valid = true;
return true;
}
// "Shape" string.
for (int i = 0; i < sd->spans.size(); i++) {
const ShapedTextData::Span &span = sd->spans[i];
if (span.embedded_key != Variant()) {
// Embedded object.
if (sd->orientation == ORIENTATION_HORIZONTAL) {
sd->objects[span.embedded_key].rect.position.x = sd->width;
sd->width += sd->objects[span.embedded_key].rect.size.x;
} else {
sd->objects[span.embedded_key].rect.position.y = sd->width;
sd->width += sd->objects[span.embedded_key].rect.size.y;
}
Glyph gl;
gl.start = span.start;
gl.end = span.end;
gl.count = 1;
gl.index = 0;
gl.flags = GRAPHEME_IS_VALID | GRAPHEME_IS_VIRTUAL;
if (sd->orientation == ORIENTATION_HORIZONTAL) {
gl.advance = sd->objects[span.embedded_key].rect.size.x;
} else {
gl.advance = sd->objects[span.embedded_key].rect.size.y;
}
sd->glyphs.push_back(gl);
} else {
// Text span.
for (int j = span.start; j < span.end; j++) {
Glyph gl;
gl.start = j;
gl.end = j + 1;
gl.count = 1;
gl.font_size = span.font_size;
gl.index = (int32_t)sd->text[j]; // Use codepoint.
if (gl.index == 0x0009 || gl.index == 0x000b) {
gl.index = 0x0020;
}
if (!sd->preserve_control && is_control(gl.index)) {
gl.index = 0x0020;
}
// Select first font which has character (font are already sorted by span language).
for (int k = 0; k < span.fonts.size(); k++) {
if (font_has_char(span.fonts[k], gl.index)) {
gl.font_rid = span.fonts[k];
break;
}
}
if (gl.font_rid.is_valid()) {
if (sd->text[j] != 0 && !is_linebreak(sd->text[j])) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
gl.advance = font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x;
gl.x_off = 0;
gl.y_off = 0;
sd->ascent = MAX(sd->ascent, font_get_ascent(gl.font_rid, gl.font_size));
sd->descent = MAX(sd->descent, font_get_descent(gl.font_rid, gl.font_size));
} else {
gl.advance = font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).y;
gl.x_off = -Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5);
gl.y_off = font_get_ascent(gl.font_rid, gl.font_size);
sd->ascent = MAX(sd->ascent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
sd->descent = MAX(sd->descent, Math::round(font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
}
}
if (font_get_spacing(gl.font_rid, gl.font_size, TextServer::SPACING_SPACE) && is_whitespace(sd->text[j])) {
gl.advance += font_get_spacing(gl.font_rid, gl.font_size, TextServer::SPACING_SPACE);
} else {
gl.advance += font_get_spacing(gl.font_rid, gl.font_size, TextServer::SPACING_GLYPH);
}
sd->upos = MAX(sd->upos, font_get_underline_position(gl.font_rid, gl.font_size));
sd->uthk = MAX(sd->uthk, font_get_underline_thickness(gl.font_rid, gl.font_size));
// Add kerning to previous glyph.
if (sd->glyphs.size() > 0) {
Glyph &prev_gl = sd->glyphs.write[sd->glyphs.size() - 1];
if (prev_gl.font_rid == gl.font_rid && prev_gl.font_size == gl.font_size) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
prev_gl.advance += font_get_kerning(gl.font_rid, gl.font_size, Vector2i(prev_gl.index, gl.index)).x;
} else {
prev_gl.advance += font_get_kerning(gl.font_rid, gl.font_size, Vector2i(prev_gl.index, gl.index)).y;
}
}
}
} else if (sd->preserve_invalid || (sd->preserve_control && is_control(gl.index))) {
// Glyph not found, replace with hex code box.
if (sd->orientation == ORIENTATION_HORIZONTAL) {
gl.advance = get_hex_code_box_size(gl.font_size, gl.index).x;
sd->ascent = MAX(sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.75f));
sd->descent = MAX(sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).y * 0.25f));
} else {
gl.advance = get_hex_code_box_size(gl.font_size, gl.index).y;
sd->ascent = MAX(sd->ascent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
sd->descent = MAX(sd->descent, Math::round(get_hex_code_box_size(gl.font_size, gl.index).x * 0.5f));
}
}
sd->width += gl.advance;
sd->glyphs.push_back(gl);
}
}
}
// Align embedded objects to baseline.
real_t full_ascent = sd->ascent;
real_t full_descent = sd->descent;
for (Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = sd->objects.front(); E; E = E->next()) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.y = -sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.y = (-sd->ascent + sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.y = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.y = sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.y -= E->get().rect.size.y;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.y -= E->get().rect.size.y / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.y);
full_descent = MAX(full_descent, E->get().rect.position.y + E->get().rect.size.y);
} else {
switch (E->get().inline_align & INLINE_ALIGN_TEXT_MASK) {
case INLINE_ALIGN_TO_TOP: {
E->get().rect.position.x = -sd->ascent;
} break;
case INLINE_ALIGN_TO_CENTER: {
E->get().rect.position.x = (-sd->ascent + sd->descent) / 2;
} break;
case INLINE_ALIGN_TO_BASELINE: {
E->get().rect.position.x = 0;
} break;
case INLINE_ALIGN_TO_BOTTOM: {
E->get().rect.position.x = sd->descent;
} break;
}
switch (E->get().inline_align & INLINE_ALIGN_IMAGE_MASK) {
case INLINE_ALIGN_BOTTOM_TO: {
E->get().rect.position.x -= E->get().rect.size.x;
} break;
case INLINE_ALIGN_CENTER_TO: {
E->get().rect.position.x -= E->get().rect.size.x / 2;
} break;
case INLINE_ALIGN_TOP_TO: {
//NOP
} break;
}
full_ascent = MAX(full_ascent, -E->get().rect.position.x);
full_descent = MAX(full_descent, E->get().rect.position.x + E->get().rect.size.x);
}
}
sd->ascent = full_ascent;
sd->descent = full_descent;
sd->valid = true;
return sd->valid;
}
bool TextServerFallback::shaped_text_is_ready(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, false);
MutexLock lock(sd->mutex);
return sd->valid;
}
Vector<TextServer::Glyph> TextServerFallback::shaped_text_get_glyphs(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, Vector<TextServer::Glyph>());
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->glyphs;
}
Vector2i TextServerFallback::shaped_text_get_range(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, Vector2i());
MutexLock lock(sd->mutex);
return Vector2(sd->start, sd->end);
}
Vector<TextServer::Glyph> TextServerFallback::shaped_text_sort_logical(RID p_shaped) {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, Vector<TextServer::Glyph>());
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->glyphs; // Already in the logical order, return as is.
}
Array TextServerFallback::shaped_text_get_objects(RID p_shaped) const {
Array ret;
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, ret);
MutexLock lock(sd->mutex);
for (const Map<Variant, ShapedTextData::EmbeddedObject>::Element *E = sd->objects.front(); E; E = E->next()) {
ret.push_back(E->key());
}
return ret;
}
Rect2 TextServerFallback::shaped_text_get_object_rect(RID p_shaped, Variant p_key) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, Rect2());
MutexLock lock(sd->mutex);
ERR_FAIL_COND_V(!sd->objects.has(p_key), Rect2());
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->objects[p_key].rect;
}
Size2 TextServerFallback::shaped_text_get_size(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, Size2());
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
if (sd->orientation == TextServer::ORIENTATION_HORIZONTAL) {
return Size2(sd->width, sd->ascent + sd->descent);
} else {
return Size2(sd->ascent + sd->descent, sd->width);
}
}
real_t TextServerFallback::shaped_text_get_ascent(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->ascent;
}
real_t TextServerFallback::shaped_text_get_descent(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->descent;
}
real_t TextServerFallback::shaped_text_get_width(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->width;
}
real_t TextServerFallback::shaped_text_get_underline_position(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->upos;
}
real_t TextServerFallback::shaped_text_get_underline_thickness(RID p_shaped) const {
const ShapedTextData *sd = shaped_owner.getornull(p_shaped);
ERR_FAIL_COND_V(!sd, 0.f);
MutexLock lock(sd->mutex);
if (!sd->valid) {
const_cast<TextServerFallback *>(this)->shaped_text_shape(p_shaped);
}
return sd->uthk;
}
TextServer *TextServerFallback::create_func(Error &r_error, void *p_user_data) {
r_error = OK;
return memnew(TextServerFallback());
}
void TextServerFallback::register_server() {
TextServerManager::register_create_function(interface_name, interface_features, create_func, nullptr);
}
TextServerFallback::TextServerFallback(){};
TextServerFallback::~TextServerFallback() {
if (library != nullptr) {
FT_Done_FreeType(library);
}
};
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