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fix glyph positions

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boolean-false 2026-09-27 17:33:55 +07:00
parent bac0d43fd7
commit 64ba1dad4e
3 changed files with 24 additions and 21 deletions
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17
src/coders/vector_fonts.cpp
View file

@ -122,10 +122,16 @@ namespace {
std::vector<Glyph>& glyphs
) {
int size = canvas.getWidth() / 16;
const size_t end = (pageid + 1) * 256;
if (glyphs.size() < end) {
glyphs.resize(end);
}
for (int c = 0; c < 256; c++) {
int codepoint = pageid << 8 | c;
if (!renderGlyph(codepoint, bitmapDst)) {
glyphs.push_back(Glyph {0, size / 2});
glyphs[codepoint] = Glyph {0, size / 2};
continue;
}
@ -133,13 +139,10 @@ namespace {
Glyph glyph {
face->glyph->bitmap_top - size,
static_cast<int>(face->glyph->advance.x >> 6)
static_cast<int>(face->glyph->advance.x >> 6),
face->glyph->bitmap_left
};
if (codepoint < glyphs.size()) {
glyphs[codepoint] = std::move(glyph);
} else {
glyphs.push_back(std::move(glyph));
}
glyphs[codepoint] = glyph;
}
canvas.flipY();
}

27
src/graphics/core/Font.cpp
View file

@ -176,7 +176,7 @@ static inline void draw_text(
int y = 0;
bool hasLines = false;
float baseAdvance = glm::length(right);
const float cellAdvance = interval * font.getLineHeight();
do {
for (size_t i = 0; i < text.length(); i++) {
@ -193,12 +193,12 @@ static inline void draw_text(
continue;
}
int yOffset = 0;
float advance = baseAdvance;
int xOffset = 0;
float advance = 1.0f;
if (auto glyph = font.getGlyph(c)) {
yOffset = glyph->yOffset;
advance = glyph->xAdvance /
static_cast<float>(font.getLineHeight()) * 2.0f *
baseAdvance;
xOffset = glyph->xOffset;
advance = glyph->xAdvance / cellAdvance;
}
uint charpage = c >> 8;
if (charpage == page){
@ -207,7 +207,7 @@ static inline void draw_text(
batch,
pos,
glm::vec2(
x,
x + xOffset / cellAdvance,
y - yOffset * (is3d ? -1 : 1) /
static_cast<float>(font.getLineHeight())
),
@ -221,7 +221,7 @@ static inline void draw_text(
else if (charpage > page && charpage < next){
next = charpage;
}
x += advance / baseAdvance;
x += advance;
}
page = next;
next = MAX_CODEPAGES;
@ -329,23 +329,22 @@ const Glyph* Font::getGlyph(int codepoint) {
if (codepoint < 0) {
return nullptr;
}
if (codepoint < glyphs.size()) {
const int codepage = codepoint >> 8;
if (codepoint < glyphs.size() &&
(!fontFile.has_value() ||
(codepage < pages.size() && pages[codepage]))) {
return &glyphs.at(codepoint);
}
if (!this->fontFile.has_value() || this->fontFile->expired()) {
return nullptr;
}
int codepage = codepoint >> 8;
if (codepage >= 1024) {
return nullptr;
}
if (glyphs.size() < (codepage << 8)) {
glyphs.resize(codepage << 8);
}
auto fontFile = this->fontFile->lock();
if (pages.size() <= codepage) {
pages.resize(codepage);
pages.resize(codepage + 1);
}
pages.push_back(fontFile->renderPage(codepage, glyphs, lineHeight));
pages[codepage] = fontFile->renderPage(codepage, glyphs, lineHeight);
return &glyphs.at(codepoint);
}

1
src/graphics/core/Font.hpp
View file

@ -26,6 +26,7 @@ namespace vector_fonts {
struct Glyph {
int yOffset;
int xAdvance;
int xOffset = 0;
};
class Font {