68 lines
3.2 KiB
C++
68 lines
3.2 KiB
C++
// #include "imgui.h"
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// #include <GLFW/glfw3.h>
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#include "imgui.h"
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#include "backends/imgui_impl_glfw.h"
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#include "backends/imgui_impl_opengl3.h"
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#define GL_SILENCE_DEPRECATION
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#if defined(IMGUI_IMPL_OPENGL_ES2)
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#include <GLES2/gl2.h>
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#endif
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#include <GLFW/glfw3.h> // Will drag system OpenGL headers
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extern "C" void silt_init(GLFWwindow* window)
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{
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO(); (void)io;
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
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// Setup Dear ImGui style
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ImGui::StyleColorsDark();
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//ImGui::StyleColorsLight();
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// Setup Platform/Renderer backends
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ImGui_ImplGlfw_InitForOpenGL(window, true);
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#ifdef __EMSCRIPTEN__
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ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback("#canvas");
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#endif
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const char* glsl_version = "#version 130";
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ImGui_ImplOpenGL3_Init(glsl_version);
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// Load Fonts
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// - 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.
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// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
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// - 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).
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// - 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.
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// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
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// - Read 'docs/FONTS.md' for more instructions and details.
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// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
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// - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
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//io.Fonts->AddFontDefault();
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//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
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//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
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//IM_ASSERT(font != nullptr);
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}
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extern "C" void silt_start_new_frame()
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{
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ImGui_ImplOpenGL3_NewFrame();
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ImGui_ImplGlfw_NewFrame();
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ImGui::NewFrame();
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}
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extern "C" void silt_render(GLFWwindow* window)
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{
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ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
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ImGui::Render();
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int display_w, display_h;
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glfwGetFramebufferSize(window, &display_w, &display_h);
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glViewport(0, 0, display_w, display_h);
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glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
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glClear(GL_COLOR_BUFFER_BIT);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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}
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