feat(vulkan): vulkan 1.4 core with the user interface and the launcher, shaders split into ogl46/vk14 with SPIR-V binaries loaded first

application/application.cpp

@@ -145,16 +145,13 @@ void eu07_application::queue_screenshot()
 int eu07_application::run_crashgui()
 {
 	bool autoup = false;
+	bool y{false}, n{false};
 
-	while (!glfwWindowShouldClose(m_windows.front()))
-	{
-		glfwPollEvents();
-
-		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	// the questions are the ui of the frames the renderer draws (render_ui()), whichever api it is: the window has no opengl
+	// context with vulkan
+	m_crashui = [&]() {
 		ui_layer::begin_ui_frame_internal();
 
-		bool y, n;
-
 		if (Global.asLang == "pl")
 		{
 			ImGui::Begin("Raportowanie błędów", nullptr, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoResize);
@@ -201,22 +198,35 @@ int eu07_application::run_crashgui()
 		}
 
 		ui_layer::render_internal();
-		glfwSwapBuffers(m_windows.front());
+	};
+
+	while (!glfwWindowShouldClose(m_windows.front()))
+	{
+		glfwPollEvents();
+
+		y = false;
+		n = false;
+		if (!GfxRenderer->Render())
+			break;
+		GfxRenderer->SwapBuffers();
 
 		if (y)
 		{
 			crashreport_upload_accept();
 			if (autoup)
 				crashreport_set_autoupload();
+			m_crashui = nullptr;
 			return 0;
 		}
 
 		if (n)
 		{
 			crashreport_upload_reject();
+			m_crashui = nullptr;
 			return 0;
 		}
 	}
+	m_crashui = nullptr;
 	return -1;
 }
 #if WITH_DISCORD_RPC
@@ -382,15 +392,6 @@ int eu07_application::init(int Argc, char *Argv[])
 		return result;
 	}
 
-	if (crashreport_is_pending())
-	{ // run crashgui as early as possible
-		if ((result = run_crashgui()) != 0)
-		{
-			ErrorLog("Failed to run crash gui!");
-			return result;
-		}
-	}
-
 	if ((result = init_locale()) != 0)
 	{
 		ErrorLog("Failed to initialize locales! Maybe you're missing lang directory?");
@@ -408,6 +409,14 @@ int eu07_application::init(int Argc, char *Argv[])
 		ErrorLog("Failed to init UI!");
 		return result;
 	}
+	if (crashreport_is_pending())
+	{ // run crashgui as early as possible: it's drawn by the renderer
+		if ((result = run_crashgui()) != 0)
+		{
+			ErrorLog("Failed to run crash gui!");
+			return result;
+		}
+	}
 	if ((result = init_audio()) != 0)
 	{
 		ErrorLog("Failed to initialize OpenAL");
@@ -632,7 +641,6 @@ int eu07_application::run()
 		Timer::subsystem.loop_tasks.start();
 		m_taskqueue.update();
 		Timer::subsystem.loop_tasks.stop();
-		opengl_texture::reset_unit_cache();
 
 		if (!GfxRenderer->Render())
 			break;
@@ -747,6 +755,11 @@ void eu07_application::exit()
 
 void eu07_application::render_ui()
 {
+	if (m_crashui)
+	{
+		m_crashui();
+		return;
+	}
 
 	if (m_modestack.empty())
 	{

application/application.h

@@ -123,6 +123,8 @@ private:
 // members
 
     bool m_screenshot_queued = false;
+    // the ui of the crash gui, drawn in the frames of the renderer instead of the ui of the modes while it's there
+    std::function<void()> m_crashui;
 
     modeptr_array m_modes { nullptr }; // collection of available application behaviour modes
     mode_stack m_modestack; // current behaviour mode

application/scenarioloaderuilayer.cpp

@@ -10,6 +10,7 @@ http://mozilla.org/MPL/2.0/.
 #include "application/scenarioloaderuilayer.h"
 
 #include "utilities/Globals.h"
+#include "rendering/renderer.h"
 #include "utilities/translation.h"
 #include <nlohmann/json.hpp>
 #include "utilities/Logs.h"
@@ -309,18 +310,13 @@ void scenarioloader_ui::generate_gradient_tex()
 			image_data[(y * image_width + x) * 4 + 3] = std::clamp(static_cast<int>(pow(y / 1023.f, 0.7) * 255), 0, 255);
 		}
 
-	// Create a OpenGL texture identifier
-	GLuint image_texture;
-	glGenTextures(1, &image_texture);
-	glBindTexture(GL_TEXTURE_2D, image_texture);
-
-	// Setup filtering parameters for display
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
-	// Upload pixels into texture
-	glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image_width, image_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, image_data);
+	// an image of the user interface: the values as they are (not srgb), the nearest texel
+	imgui_renderer::image_options options;
+	options.srgb = false;
+	options.nearest = true;
+	std::uint64_t image_texture{0};
+	if (auto *renderer{GfxRenderer->GetImguiRenderer()})
+		image_texture = renderer->Create_Image(reinterpret_cast<std::uint8_t const *>(image_data), image_width, image_height, options);
 
 	delete[] image_data;
 

application/scenarioloaderuilayer.h

@@ -15,7 +15,7 @@ http://mozilla.org/MPL/2.0/.
 class scenarioloader_ui : public ui_layer {
 	int m_gradient_overlay_width;
 	int m_gradient_overlay_height;
-	GLuint m_gradient_overlay_tex;
+	std::uint64_t m_gradient_overlay_tex; // imgui_renderer image
 	deferred_image m_loading_wheel_frames[60];
     std::vector<std::string> m_trivia;
 public:

application/uilayer.cpp

@@ -421,7 +421,11 @@ void ui_layer::shutdown()
 {
 	ImGui::EndFrame();
 
-	GfxRenderer->GetImguiRenderer()->Shutdown();
+	// the vulkan renderer is gone by now (its backend of imgui went with it)
+	if (auto *renderer{GfxRenderer->GetImguiRenderer()})
+	{
+		renderer->Shutdown();
+	}
 	ImGui_ImplGlfw_Shutdown();
 	ImGui::DestroyContext();
 }