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Merge pull request #46045 from bruvzg/text_server_bmp_create

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[TextServer] Restores bitmap font dynamic construction functions.
This commit is contained in:
Rémi Verschelde
2021-02-24 12:55:36 +01:00
committed by GitHub
parent 19bfbcfec2 bee718f1af
commit a527c6856b
20 changed files with 415 additions and 142 deletions
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89
modules/text_server_fb/bitmap_font_fb.cpp
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@@ -175,63 +175,60 @@ Error BitmapFontDataFallback::load_from_file(const String &p_filename, int p_bas
return OK;
}
Error BitmapFontDataFallback::load_from_memory(const uint8_t *p_data, size_t p_size, int p_base_size) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(p_data == nullptr, ERR_CANT_CREATE);
ERR_FAIL_COND_V(p_size != sizeof(TextServer::BitmapFontData), ERR_CANT_CREATE);
const TextServer::BitmapFontData *data = (const TextServer::BitmapFontData *)p_data;
if (RenderingServer::get_singleton() != nullptr) {
Ref<Image> image = memnew(Image(data->img));
Ref<ImageTexture> tex = memnew(ImageTexture);
tex->create_from_image(image);
textures.push_back(tex);
}
for (int i = 0; i < data->charcount; i++) {
const int *c = &data->char_rects[i * 8];
Character chr;
chr.rect.position.x = c[1];
chr.rect.position.y = c[2];
chr.rect.size.x = c[3];
chr.rect.size.y = c[4];
if (c[7] < 0) {
chr.advance.x = c[3];
} else {
chr.advance.x = c[7];
}
chr.align = Vector2(c[6], c[5]);
char_map[c[0]] = chr;
}
for (int i = 0; i < data->kerning_count; i++) {
KerningPairKey kpk;
kpk.A = data->kernings[i * 3 + 0];
kpk.B = data->kernings[i * 3 + 1];
if (data->kernings[i * 3 + 2] == 0 && kerning_map.has(kpk)) {
kerning_map.erase(kpk);
} else {
kerning_map[kpk] = data->kernings[i * 3 + 2];
}
}
height = data->height;
ascent = data->ascent;
Error BitmapFontDataFallback::bitmap_new(float p_height, float p_ascent, int p_base_size) {
height = p_height;
ascent = p_ascent;
base_size = p_base_size;
if (base_size == 0) {
base_size = height;
}
char_map.clear();
textures.clear();
kerning_map.clear();
valid = true;
return OK;
}
void BitmapFontDataFallback::bitmap_add_texture(const Ref<Texture> &p_texture) {
ERR_FAIL_COND(!valid);
ERR_FAIL_COND_MSG(p_texture.is_null(), "It's not a reference to a valid Texture object.");
textures.push_back(p_texture);
}
void BitmapFontDataFallback::bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
ERR_FAIL_COND(!valid);
Character chr;
chr.rect = p_rect;
chr.texture_idx = p_texture_idx;
if (p_advance < 0) {
chr.advance.x = chr.rect.size.x;
} else {
chr.advance.x = p_advance;
}
chr.align = p_align;
char_map[p_char] = chr;
}
void BitmapFontDataFallback::bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) {
ERR_FAIL_COND(!valid);
KerningPairKey kpk;
kpk.A = p_A;
kpk.B = p_B;
if (p_kerning == 0 && kerning_map.has(kpk)) {
kerning_map.erase(kpk);
} else {
kerning_map[kpk] = p_kerning;
}
}
float BitmapFontDataFallback::get_height(int p_size) const {
ERR_FAIL_COND_V(!valid, 0.f);
return height * (float(p_size) / float(base_size));

6
modules/text_server_fb/bitmap_font_fb.h
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@@ -70,7 +70,11 @@ public:
virtual void clear_cache() override{};
virtual Error load_from_file(const String &p_filename, int p_base_size) override;
virtual Error load_from_memory(const uint8_t *p_data, size_t p_size, int p_base_size) override;
virtual Error bitmap_new(float p_height, float p_ascent, int p_base_size) override;
virtual void bitmap_add_texture(const Ref<Texture> &p_texture) override;
virtual void bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) override;
virtual void bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) override;
virtual float get_height(int p_size) const override;
virtual float get_ascent(int p_size) const override;

9
modules/text_server_fb/font_fb.h
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@@ -42,8 +42,13 @@ struct FontDataFallback {
virtual void clear_cache() = 0;
virtual Error load_from_file(const String &p_filename, int p_base_size) = 0;
virtual Error load_from_memory(const uint8_t *p_data, size_t p_size, int p_base_size) = 0;
virtual Error load_from_file(const String &p_filename, int p_base_size) { return ERR_CANT_CREATE; };
virtual Error load_from_memory(const uint8_t *p_data, size_t p_size, int p_base_size) { return ERR_CANT_CREATE; };
virtual Error bitmap_new(float p_height, float p_ascent, int p_base_size) { return ERR_CANT_CREATE; };
virtual void bitmap_add_texture(const Ref<Texture> &p_texture) { ERR_FAIL_MSG("Not supported."); };
virtual void bitmap_add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) { ERR_FAIL_MSG("Not supported."); };
virtual void bitmap_add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) { ERR_FAIL_MSG("Not supported."); };
virtual float get_height(int p_size) const = 0;
virtual float get_ascent(int p_size) const = 0;

33
modules/text_server_fb/text_server_fb.cpp
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@@ -148,6 +148,39 @@ RID TextServerFallback::create_font_memory(const uint8_t *p_data, size_t p_size,
return font_owner.make_rid(fd);
}
RID TextServerFallback::create_font_bitmap(float p_height, float p_ascent, int p_base_size) {
_THREAD_SAFE_METHOD_
FontDataFallback *fd = memnew(BitmapFontDataFallback);
Error err = fd->bitmap_new(p_height, p_ascent, p_base_size);
if (err != OK) {
memdelete(fd);
return RID();
}
return font_owner.make_rid(fd);
}
void TextServerFallback::font_bitmap_add_texture(RID p_font, const Ref<Texture> &p_texture) {
_THREAD_SAFE_METHOD_
FontDataFallback *fd = font_owner.getornull(p_font);
ERR_FAIL_COND(!fd);
fd->bitmap_add_texture(p_texture);
}
void TextServerFallback::font_bitmap_add_char(RID p_font, char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
_THREAD_SAFE_METHOD_
FontDataFallback *fd = font_owner.getornull(p_font);
ERR_FAIL_COND(!fd);
fd->bitmap_add_char(p_char, p_texture_idx, p_rect, p_align, p_advance);
}
void TextServerFallback::font_bitmap_add_kerning_pair(RID p_font, char32_t p_A, char32_t p_B, int p_kerning) {
_THREAD_SAFE_METHOD_
FontDataFallback *fd = font_owner.getornull(p_font);
ERR_FAIL_COND(!fd);
fd->bitmap_add_kerning_pair(p_A, p_B, p_kerning);
}
float TextServerFallback::font_get_height(RID p_font, int p_size) const {
_THREAD_SAFE_METHOD_
const FontDataFallback *fd = font_owner.getornull(p_font);

5
modules/text_server_fb/text_server_fb.h
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@@ -81,6 +81,11 @@ public:
virtual RID create_font_system(const String &p_name, int p_base_size = 16) override;
virtual RID create_font_resource(const String &p_filename, int p_base_size = 16) override;
virtual RID create_font_memory(const uint8_t *p_data, size_t p_size, const String &p_type, int p_base_size = 16) override;
virtual RID create_font_bitmap(float p_height, float p_ascent, int p_base_size = 16) override;
virtual void font_bitmap_add_texture(RID p_font, const Ref<Texture> &p_texture) override;
virtual void font_bitmap_add_char(RID p_font, char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) override;
virtual void font_bitmap_add_kerning_pair(RID p_font, char32_t p_A, char32_t p_B, int p_kerning) override;
virtual float font_get_height(RID p_font, int p_size) const override;
virtual float font_get_ascent(RID p_font, int p_size) const override;