init commit

2025-06-11 22:45:11 +08:00
commit 71307f3e53
115 changed files with 13922 additions and 0 deletions
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+#include "ui_main.h"
+
+#include <SDL3/SDL_opengl.h>
+
+#include <imgui/imgui.h>
+#include "imgui/imgui_impl_sdl3.h"
+#include "imgui/imgui_impl_opengl3.h"
+
+#include "scene/dvu_load_gltf.h"
+#include "pipe/dvc_render_queue.h"
+#include "device/dvc_render_target.h"
+#include "shader/dvc_shader_interface.h"
+#include "buffer/dvu_dump_buffer.h"
+#include "device/dvc_uniform_buffer.h"
+#include "scene/dvc_scene_node.h"
+#include "scene/component/dvc_light_component.h"
+#include "../adapter/adapter_texture.h"
+
+
+SDL_Window* main_window;
+
+extern davinci::Scene g_scene;
+extern davinci::RenderTarget g_renderTarget;
+
+bool initMainUI(SDL_Window* window, SDL_GLContext gl_context, const char* glsl_version)
+{
+	main_window = window;
+
+	// Setup Dear ImGui context
+	IMGUI_CHECKVERSION();
+	ImGui::CreateContext();
+	ImGuiIO& io = ImGui::GetIO(); (void)io;
+	io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
+	io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
+
+	// Setup Dear ImGui style
+	//ImGui::StyleColorsDark();
+	ImGui::StyleColorsLight();
+
+	// Setup Platform/Renderer backends
+	ImGui_ImplSDL3_InitForOpenGL(window, gl_context);
+	ImGui_ImplOpenGL3_Init(glsl_version);
+
+	// Load Fonts
+	// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
+	// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
+	// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+	// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
+	// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
+	// - Read 'docs/FONTS.md' for more instructions and details.
+	// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
+	// - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
+	//io.Fonts->AddFontDefault();
+	io.Fonts->AddFontFromFileTTF("./font/FiraCode-Regular.ttf", 18.0f);
+	//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+	//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+	//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+	//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
+	//IM_ASSERT(font != nullptr);
+
+	return true;
+}
+
+void processUIEvent(const SDL_Event* event)
+{
+	ImGui_ImplSDL3_ProcessEvent(event);
+}
+
+void OpenFileDialogFileCallback(void* userdata, const char* const* filelist, int filter)
+{
+	if (filelist == nullptr || *filelist == nullptr) return;
+
+	g_scene.clear();
+
+	const char* szFileName = *filelist;
+	davinci_utils::load_scene_from_gltf(szFileName, g_scene);
+}
+
+void drawMainUI()
+{
+	// Start the Dear ImGui frame
+	ImGui_ImplOpenGL3_NewFrame();
+	ImGui_ImplSDL3_NewFrame();
+	ImGui::NewFrame();
+
+	ImGui::Begin("Davinci");                          // Create a window called "Hello, world!" and append into it.
+	if (ImGui::Button("OpenFile..."))
+	{
+		const SDL_DialogFileFilter filters[] = {
+			{ "gltf files(*.gltf;*.glb)",	"gltf;glb" },
+			{ "All files(*.*)",				"*" }
+		};
+		SDL_ShowOpenFileDialog(OpenFileDialogFileCallback, nullptr, main_window, filters, sizeof(filters)/sizeof(SDL_DialogFileFilter), nullptr, false);
+	}
+	if (ImGui::Button("Export"))
+	{
+		davinci_utils::export_mesh_to_obj(g_scene);
+	}
+	if (ImGui::Button("Render"))
+	{
+		davinci::UniformBuffer uniformBuffer;
+		uniformBuffer.updateStandardAttribute(g_scene);
+
+		//find Light node
+		davinci::SceneNodeConstPtr lightNode = g_scene.getNodeWithComponent<davinci::LightComponent>();
+		if (lightNode)
+		{
+			uniformBuffer.setAttribute("light0:position", lightNode->getWorldPosition());
+		}
+
+		davinci::RenderQueue queue;
+		queue.build(g_scene);
+
+		g_renderTarget.clear();
+		queue.process(uniformBuffer, g_renderTarget);
+	}
+	ImGui::End();
+
+	// Rendering
+	ImGui::Render();
+
+	ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+}
+
+void cleanMainUI()
+{
+	ImGui_ImplOpenGL3_Shutdown();
+	ImGui_ImplSDL3_Shutdown();
+	ImGui::DestroyContext();
+}