65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
// Copyright (c) 2023 Dominic Masters
|
|
//
|
|
// This software is released under the MIT License.
|
|
// https://opensource.org/licenses/MIT
|
|
|
|
#include "SimpleRenderTargetQuad.hpp"
|
|
|
|
using namespace Dawn;
|
|
|
|
SimpleRenderTargetQuad::SimpleRenderTargetQuad(SceneItem *i) :
|
|
SceneItemComponent(i),
|
|
renderTarget(nullptr)
|
|
{
|
|
}
|
|
|
|
std::vector<std::shared_ptr<SceneItemComponent>> SimpleRenderTargetQuad::getDependencies() {
|
|
return {
|
|
(this->meshHost = this->item->getComponent<MeshHost>())
|
|
};
|
|
}
|
|
|
|
void SimpleRenderTargetQuad::onStart() {
|
|
assertNotNull(this->meshHost, "SimpleRenderTargetQuad::onStart: MeshHost cannot be null");
|
|
|
|
// Create quad mesh
|
|
this->meshHost->mesh.createBuffers(QUAD_VERTICE_COUNT, QUAD_INDICE_COUNT);
|
|
|
|
// Create teardown effect and keep track.
|
|
auto initial = useEffectWithTeardown([&]{
|
|
// No teardown needed.
|
|
if(this->renderTarget == nullptr) return evtResized = [&]{ };
|
|
|
|
// Update mesh
|
|
QuadMesh::bufferQuadMesh(
|
|
&this->meshHost->mesh,
|
|
glm::vec2(0, 0), glm::vec2(0, 0),
|
|
glm::vec2(
|
|
((RenderTarget*)this->renderTarget)->getWidth(),
|
|
((RenderTarget*)this->renderTarget)->getHeight()
|
|
),
|
|
glm::vec2(1, 1),
|
|
0, 0
|
|
);
|
|
|
|
// Subscribe to resize event.
|
|
evtResized = useEvent([&](
|
|
RenderTarget &target,
|
|
const float_t w,
|
|
const float_t h
|
|
) {
|
|
QuadMesh::bufferQuadMesh(
|
|
&this->meshHost->mesh,
|
|
glm::vec2(0, 0), glm::vec2(0, 0),
|
|
glm::vec2(w, h), glm::vec2(1, 1),
|
|
0, 0
|
|
);
|
|
}, this->renderTarget->eventRenderTargetResized);
|
|
|
|
// Teardown
|
|
return evtResized;
|
|
}, this->renderTarget);
|
|
|
|
// Invoke immediate
|
|
initial();
|
|
} |