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feat: rendering pages on demand

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MihailRis 2026-02-16 01:42:48 +03:00
parent 381cb77d08
commit 47809b4024
9 changed files with 106 additions and 39 deletions
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47
src/graphics/core/Font.cpp
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@ -1,11 +1,13 @@
#include "Font.hpp"
#include "Batch2D.hpp"
#include "Batch3D.hpp"
#include "coders/vector_fonts.hpp"
#include "Texture.hpp"
#include "window/Camera.hpp"
#include <limits>
#include <utility>
#include "Texture.hpp"
#include "Batch2D.hpp"
#include "Batch3D.hpp"
#include "window/Camera.hpp"
inline constexpr uint GLYPH_SIZE = 16;
inline constexpr uint MAX_CODEPAGES = 10000; // idk ho many codepages unicode has
@ -15,13 +17,15 @@ Font::Font(
std::vector<std::unique_ptr<Texture>> pages,
std::vector<Glyph> glyphs,
int lineHeight,
int yoffset
int yoffset,
std::optional<std::weak_ptr<vector_fonts::FontFile>> fontFile
)
: lineHeight(lineHeight),
yoffset(yoffset),
glyphInterval(lineHeight / 2),
pages(std::move(pages)),
glyphs(std::move(glyphs)) {
glyphs(std::move(glyphs)),
fontFile(std::move(fontFile)) {
}
Font::~Font() = default;
@ -139,7 +143,7 @@ static inline void draw_glyph(
template <class Batch>
static inline void draw_text(
const Font& font,
Font& font,
Batch& batch,
std::wstring_view text,
const glm::vec3& pos,
@ -244,7 +248,7 @@ void Font::draw(
const FontStylesScheme* styles,
size_t styleMapOffset,
float scale
) const {
) {
draw_text(
*this, batch, text,
glm::vec3(x, y, 0),
@ -264,7 +268,7 @@ void Font::draw(
const glm::vec3& pos,
const glm::vec3& right,
const glm::vec3& up
) const {
) {
draw_text(
*this, batch, text, pos,
right * static_cast<float>(glyphInterval),
@ -296,3 +300,28 @@ std::unique_ptr<Font> Font::createBitmapFont(
}
return std::make_unique<Font>(std::move(textures), std::move(glyphs), res, 4);
}
const Glyph* Font::getGlyph(int codepoint) {
if (codepoint < 0) {
return nullptr;
}
if (codepoint < glyphs.size()) {
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.push_back(fontFile->renderPage(codepage, glyphs, lineHeight));
return &glyphs.at(codepoint);
}