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test rendering ui to texture

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MihailRis 2026-02-03 23:13:07 +03:00
parent 5d5a0e8932
commit 566aa04cda
6 changed files with 80 additions and 1 deletions
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42
src/graphics/ui/elements/Frame.cpp Normal file
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#include "Frame.hpp"
#include "assets/Assets.hpp"
#include "graphics/core/Batch2D.hpp"
#include "graphics/core/Framebuffer.hpp"
#include "graphics/core/DrawContext.hpp"
#include "graphics/core/Texture.hpp"
#include "window/Window.hpp"
#include "../GUI.hpp"
using namespace gui;
static inline constexpr int MAX_TEXTURE_SIZE = 2048;
gui::Frame::Frame(GUI& gui) : Container(gui, {}), fbo(nullptr) {}
gui::Frame::~Frame() = default;
void gui::Frame::draw(const DrawContext& pctx, const Assets& assets) {
glm::ivec2 size = getSize();
if (size.x <= 0 || size.y <= 0 ||
size.x > MAX_TEXTURE_SIZE || size.y > MAX_TEXTURE_SIZE) {
return;
}
auto& nonConstASsets = const_cast<Assets&>(assets);
if (fbo && (fbo->getWidth() != size.x || fbo->getHeight() != size.y)) {
fbo->resize(size.x, size.y);
nonConstASsets.store(fbo->getSharedTexture(), texture);
} else if (fbo == nullptr) {
fbo = std::make_unique<Framebuffer>(size.x, size.y, true);
nonConstASsets.store(fbo->getSharedTexture(), texture);
}
// ui uses flipped camera with matrix based on main viewport
setPos({0, pctx.getViewport().y - size.y});
auto ctx = pctx.sub();
ctx.setFramebuffer(fbo.get());
display::clear();
Container::draw(ctx, assets);
ctx.getBatch2D()->flush();
}