mirror of
https://github.com/ciphervance/supercell-wx.git
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101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
#include <scwx/qt/map/draw_layer.hpp>
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#include <scwx/qt/gl/shader_program.hpp>
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#include <scwx/util/logger.hpp>
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#pragma warning(push, 0)
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <glm/gtc/type_ptr.hpp>
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#pragma warning(pop)
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namespace scwx
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{
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namespace qt
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{
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namespace map
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{
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static const std::string logPrefix_ = "scwx::qt::map::draw_layer";
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static const auto logger_ = scwx::util::Logger::Create(logPrefix_);
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class DrawLayerImpl
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{
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public:
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explicit DrawLayerImpl(std::shared_ptr<MapContext> context) :
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shaderProgram_ {nullptr}, uMVPMatrixLocation_(GL_INVALID_INDEX)
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{
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}
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~DrawLayerImpl() {}
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std::shared_ptr<gl::ShaderProgram> shaderProgram_;
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GLint uMVPMatrixLocation_;
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std::vector<std::shared_ptr<gl::draw::DrawItem>> drawList_;
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};
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DrawLayer::DrawLayer(std::shared_ptr<MapContext> context) :
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GenericLayer(context), p(std::make_unique<DrawLayerImpl>(context))
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{
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}
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DrawLayer::~DrawLayer() = default;
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void DrawLayer::Initialize()
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{
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gl::OpenGLFunctions& gl = context()->gl();
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p->shaderProgram_ =
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context()->GetShaderProgram(":/gl/color.vert", ":/gl/color.frag");
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p->uMVPMatrixLocation_ =
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gl.glGetUniformLocation(p->shaderProgram_->id(), "uMVPMatrix");
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if (p->uMVPMatrixLocation_ == -1)
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{
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logger_->warn("Could not find uMVPMatrix");
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}
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p->shaderProgram_->Use();
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for (auto& item : p->drawList_)
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{
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item->Initialize();
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}
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}
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void DrawLayer::Render(const QMapbox::CustomLayerRenderParameters& params)
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{
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gl::OpenGLFunctions& gl = context()->gl();
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p->shaderProgram_->Use();
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glm::mat4 projection = glm::ortho(0.0f,
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static_cast<float>(params.width),
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0.0f,
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static_cast<float>(params.height));
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gl.glUniformMatrix4fv(
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p->uMVPMatrixLocation_, 1, GL_FALSE, glm::value_ptr(projection));
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for (auto& item : p->drawList_)
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{
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item->Render();
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}
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}
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void DrawLayer::Deinitialize()
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{
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for (auto& item : p->drawList_)
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{
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item->Deinitialize();
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}
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}
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void DrawLayer::AddDrawItem(std::shared_ptr<gl::draw::DrawItem> drawItem)
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{
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p->drawList_.push_back(drawItem);
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}
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} // namespace map
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} // namespace qt
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} // namespace scwx
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