Files
OpenVulkano/examples/ExampleApps/TextExampleApp.cpp

155 lines
4.9 KiB
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#include "TextExampleApp.hpp"
#include "Scene/Scene.hpp"
#include "Scene/Shader/Shader.hpp"
#include "Scene/Geometry.hpp"
#include "Scene/TextDrawable.hpp"
#include "Scene/GeometryFactory.hpp"
#include "Scene/Material.hpp"
#include "Scene/Vertex.hpp"
#include "Scene/SimpleDrawable.hpp"
#include "Scene/UI/PerformanceInfo.hpp"
#include "Scene/UniformBuffer.hpp"
#include "Input/InputManager.hpp"
#include "Host/GraphicsAppManager.hpp"
#include "Host/GLFW/WindowGLFW.hpp"
#include "Host/ResourceLoader.hpp"
#include "Math/Math.hpp"
#include "Base/EngineConfiguration.hpp"
#include "Controller/FreeCamCameraController.hpp"
#include "Image/ImageLoaderPng.hpp"
#include "Scene/FontAtlasGenerator.hpp"
#include <filesystem>
#ifdef _WIN32
#undef TRANSPARENT
#endif
namespace OpenVulkano
{
using namespace Scene;
using namespace Input;
using namespace Math;
namespace fs = std::filesystem;
class TextExampleAppImpl final : public TextExampleApp
{
public:
void Init() override
{
auto engineConfig = OpenVulkano::EngineConfiguration::GetEngineConfiguration();
engineConfig->SetNumThreads(4);
engineConfig->SetPreferFramebufferFormatSRGB(false);
std::srand(1); // Fix seed for random numbers
m_scene.Init();
m_cam.Init(70, 16, 9, 0.1f, 100);
m_scene.SetCamera(&m_cam);
static std::vector<std::pair<std::string, TextConfig>> texts;
texts.push_back(std::make_pair("ABab?.^{}_cdFGETG123)(", TextConfig()));
texts.push_back(std::make_pair("Hello, World!", TextConfig()));
texts.push_back(std::make_pair("\u0410\u0411\u0412\u041F", TextConfig()));
texts[0].second.applyBorder = true;
texts[1].second.backgroundColor.a = 1;
const int N = texts.size();
auto& resourceLoader = ResourceLoader::GetInstance();
const std::string fontPath = resourceLoader.GetResourcePath("Roboto-Regular.ttf");
const std::string atlasPath = (fs::path(fontPath).parent_path() / "roboto-regular-atlas.png").string();
m_nodesPool.resize(N);
m_drawablesPool.resize(N);
m_uniBuffers.resize(N);
for (int i = 0; i < N; i++)
{
m_uniBuffers[i].Init(sizeof(TextConfig), &texts[i].second, 3);
}
m_shader.AddShaderProgram(OpenVulkano::ShaderProgramType::VERTEX, "Shader/text");
m_shader.AddShaderProgram(OpenVulkano::ShaderProgramType::FRAGMENT, "Shader/text");
m_shader.AddVertexInputDescription(OpenVulkano::Vertex::GetVertexInputDescription());
m_shader.AddDescriptorSetLayoutBinding(Texture::DESCRIPTOR_SET_LAYOUT_BINDING);
m_shader.AddDescriptorSetLayoutBinding(UniformBuffer::DESCRIPTOR_SET_LAYOUT_BINDING);
m_shader.alphaBlend = true;
m_shader.cullMode = CullMode::NONE;
Charset charset = Charset::ASCII;
for (unicode_t c = 0x0410; c <= 0x041F; c++)
{
// some unicode values
charset.add(c);
}
m_atlasGenerator.GenerateAtlas(fontPath, atlasPath, charset);
for (int i = 0; i < texts.size(); i++)
{
TextDrawable* t = new TextDrawable();
t->SetFontAtlasGenerator(&m_atlasGenerator);
t->SetConfig(texts[i].second);
t->SetUniformBuffer(&m_uniBuffers[i]);
t->SetShader(&m_shader);
t->GenerateText(texts[i].first);
m_drawablesPool[i] = t;
m_nodesPool[i].Init();
m_nodesPool[i].SetMatrix(Math::Utils::translate(glm::mat4x4(1.f), Vector3f(-5, 2 - i * 2, 0)));
m_nodesPool[i].AddDrawable(m_drawablesPool[i]);
m_scene.GetRoot()->AddChild(&m_nodesPool[i]);
}
GetGraphicsAppManager()->GetRenderer()->SetScene(&m_scene);
m_camController.Init(&m_cam);
m_camController.SetDefaultKeybindings();
m_camController.SetPosition({ 0, 0, 10 });
m_camController.SetBoostFactor(5);
std::shared_ptr<OpenVulkano::Scene::UI::PerformanceInfo> m_perfInfo =
std::make_shared<OpenVulkano::Scene::UI::PerformanceInfo>();
m_ui.AddElement(m_perfInfo);
GetGraphicsAppManager()->GetRenderer()->SetActiveUi(&m_ui);
}
void Tick() override
{
m_camController.Tick();
}
void Close() override
{
for (SimpleDrawable* d: m_drawablesPool)
{
delete d;
}
}
private:
OpenVulkano::Scene::Scene m_scene;
PerspectiveCamera m_cam;
std::vector<UniformBuffer> m_uniBuffers;
OpenVulkano::FreeCamCameraController m_camController;
Shader m_shader;
FontAtlasGenerator m_atlasGenerator;
std::vector<SimpleDrawable*> m_drawablesPool;
std::vector<Node> m_nodesPool;
Vector3f_SIMD m_position = { 0, 0, -10 };
OpenVulkano::Scene::UI::SimpleUi m_ui;
std::shared_ptr<OpenVulkano::Scene::UI::PerformanceInfo> m_perfInfo;
};
IGraphicsApp* TextExampleApp::Create() { return new TextExampleAppImpl(); }
std::unique_ptr<IGraphicsApp> TextExampleApp::CreateUnique()
{
return std::make_unique<TextExampleAppImpl>();
}
}
#pragma clang diagnostic pop
#pragma clang diagnostic pop