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Lock the ImGui font atlas when processing a frame

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This commit is contained in:
Dan Paulat 2023-10-01 22:07:36 -05:00
parent d3a3c3db36
commit 2e9f5818cd
4 changed files with 27 additions and 0 deletions
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7
scwx-qt/source/scwx/qt/manager/font_manager.cpp
View file

@ -45,12 +45,19 @@ public:
const std::vector<std::string>& styles); const std::vector<std::string>& styles);
std::string fontCachePath_ {}; std::string fontCachePath_ {};
std::shared_mutex imguiFontAtlasMutex_ {};
}; };
FontManager::FontManager() : p(std::make_unique<Impl>()) {} FontManager::FontManager() : p(std::make_unique<Impl>()) {}
FontManager::~FontManager() {}; FontManager::~FontManager() {};
std::shared_mutex& FontManager::imgui_font_atlas_mutex()
{
return p->imguiFontAtlasMutex_;
}
std::shared_ptr<types::ImGuiFont> std::shared_ptr<types::ImGuiFont>
FontManager::GetImGuiFont(const std::string& family, FontManager::GetImGuiFont(const std::string& family,
const std::vector<std::string>& styles, const std::vector<std::string>& styles,

4
scwx-qt/source/scwx/qt/manager/font_manager.hpp
View file

@ -2,6 +2,8 @@
#include <scwx/qt/types/imgui_font.hpp> #include <scwx/qt/types/imgui_font.hpp>
#include <shared_mutex>
#include <QObject> #include <QObject>
namespace scwx namespace scwx
@ -19,6 +21,8 @@ public:
explicit FontManager(); explicit FontManager();
~FontManager(); ~FontManager();
std::shared_mutex& imgui_font_atlas_mutex();
std::shared_ptr<types::ImGuiFont> std::shared_ptr<types::ImGuiFont>
GetImGuiFont(const std::string& family, GetImGuiFont(const std::string& family,
const std::vector<std::string>& styles, const std::vector<std::string>& styles,

8
scwx-qt/source/scwx/qt/map/map_widget.cpp
View file

@ -1,5 +1,6 @@
#include <scwx/qt/map/map_widget.hpp> #include <scwx/qt/map/map_widget.hpp>
#include <scwx/qt/gl/gl.hpp> #include <scwx/qt/gl/gl.hpp>
#include <scwx/qt/manager/font_manager.hpp>
#include <scwx/qt/manager/placefile_manager.hpp> #include <scwx/qt/manager/placefile_manager.hpp>
#include <scwx/qt/manager/radar_product_manager.hpp> #include <scwx/qt/manager/radar_product_manager.hpp>
#include <scwx/qt/manager/settings_manager.hpp> #include <scwx/qt/manager/settings_manager.hpp>
@ -1028,6 +1029,10 @@ void MapWidget::paintGL()
// Setup ImGui Frame // Setup ImGui Frame
ImGui::SetCurrentContext(p->imGuiContext_); ImGui::SetCurrentContext(p->imGuiContext_);
// Lock ImGui font atlas prior to new ImGui frame
std::shared_lock imguiFontAtlasLock {
manager::FontManager::Instance().imgui_font_atlas_mutex()};
// Start ImGui Frame // Start ImGui Frame
ImGui_ImplQt_NewFrame(this); ImGui_ImplQt_NewFrame(this);
ImGui_ImplOpenGL3_NewFrame(); ImGui_ImplOpenGL3_NewFrame();
@ -1059,6 +1064,9 @@ void MapWidget::paintGL()
ImGui::Render(); ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
// Unlock ImGui font atlas after rendering
imguiFontAtlasLock.unlock();
// Paint complete // Paint complete
Q_EMIT WidgetPainted(); Q_EMIT WidgetPainted();
} }

8
scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp
View file

@ -1,4 +1,5 @@
#include <scwx/qt/ui/imgui_debug_widget.hpp> #include <scwx/qt/ui/imgui_debug_widget.hpp>
#include <scwx/qt/manager/font_manager.hpp>
#include <scwx/qt/model/imgui_context_model.hpp> #include <scwx/qt/model/imgui_context_model.hpp>
#include <set> #include <set>
@ -109,6 +110,10 @@ void ImGuiDebugWidget::paintGL()
{ {
ImGui::SetCurrentContext(p->currentContext_); ImGui::SetCurrentContext(p->currentContext_);
// Lock ImGui font atlas prior to new ImGui frame
std::shared_lock imguiFontAtlasLock {
manager::FontManager::Instance().imgui_font_atlas_mutex()};
ImGui_ImplQt_NewFrame(this); ImGui_ImplQt_NewFrame(this);
ImGui_ImplOpenGL3_NewFrame(); ImGui_ImplOpenGL3_NewFrame();
@ -131,6 +136,9 @@ void ImGuiDebugWidget::paintGL()
ImGui::Render(); ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
// Unlock ImGui font atlas after rendering
imguiFontAtlasLock.unlock();
} }
} // namespace ui } // namespace ui