apps/editor/src/eu/editor/main.cc
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // todo(Gustav): look into glad support | ||
| 2 | #define SDL_FUNCTION_POINTER_IS_VOID_POINTER | ||
| 3 | |||
| 4 | #include "SDL.h" | ||
| 5 | |||
| 6 | #include <cassert> | ||
| 7 | #include <string> | ||
| 8 | |||
| 9 | #include "OpenSans-Regular.ttf.h" | ||
| 10 | |||
| 11 | #include "eu/log/log.h" | ||
| 12 | #include "eu/base/memorychunk.h" | ||
| 13 | |||
| 14 | #include "eu/render/canvas.h" | ||
| 15 | #include "eu/render/state.h" | ||
| 16 | #include "eu/render/font.h" | ||
| 17 | #include "eu/render/opengl_utils.h" | ||
| 18 | #include "eu/render/texture.io.h" | ||
| 19 | |||
| 20 | #include "eu/render/enable_high_performance_graphics.h" | ||
| 21 | |||
| 22 | #include "dear_imgui/imgui.h" | ||
| 23 | #include "dear_imgui/imgui_internal.h" | ||
| 24 | |||
| 25 | #include "dear_imgui/backends/imgui_impl_sdl3.h" | ||
| 26 | #include "dear_imgui/backends/imgui_impl_opengl3.h" | ||
| 27 | |||
| 28 | #include "eu/imgui/ui.h" | ||
| 29 | #include "eu/imgui/init.h" | ||
| 30 | |||
| 31 | #define SDL_MAIN_USE_CALLBACKS | ||
| 32 | #include <SDL3/SDL_main.h> | ||
| 33 | |||
| 34 | ENABLE_HIGH_PERFORMANCE_GRAPHICS | ||
| 35 | |||
| 36 | ✗ | eu::MemoryChunk chunk_from_embed(const embedded_binary& binary) | |
| 37 | { | ||
| 38 | ✗ | return { .bytes = reinterpret_cast<const char*>(binary.data), .size = binary.size }; | |
| 39 | } | ||
| 40 | |||
| 41 | enum class AppState | ||
| 42 | { | ||
| 43 | continue_running, exit_failure, exit_ok | ||
| 44 | }; | ||
| 45 | |||
| 46 | struct App | ||
| 47 | { | ||
| 48 | ✗ | App() = default; | |
| 49 | ~App(); | ||
| 50 | |||
| 51 | App(const App&) = delete; | ||
| 52 | App(App&&) = delete; | ||
| 53 | void operator=(const App&) = delete; | ||
| 54 | void operator=(App&&) = delete; | ||
| 55 | |||
| 56 | AppState create(); | ||
| 57 | AppState iterate(); | ||
| 58 | AppState on_event(const SDL_Event& ev); | ||
| 59 | void destroy(); | ||
| 60 | |||
| 61 | int window_width = 0; | ||
| 62 | int window_height = 0; | ||
| 63 | SDL_Window* window = nullptr; | ||
| 64 | SDL_GLContextState* glContext = nullptr; | ||
| 65 | bool show_demo_window = true; | ||
| 66 | |||
| 67 | std::unique_ptr<eu::render::State> states; | ||
| 68 | std::unique_ptr<eu::render::Render2> render; | ||
| 69 | }; | ||
| 70 | |||
| 71 | ✗ | App::~App() | |
| 72 | { | ||
| 73 | ✗ | destroy(); | |
| 74 | ✗ | } | |
| 75 | |||
| 76 | ✗ | AppState App::create() | |
| 77 | { | ||
| 78 | ✗ | const char* glsl_version = "#version 130"; | |
| 79 | |||
| 80 | ✗ | SDL_SetAppMetadata("Euphoria editor", "v0.1", "com.madeso.euphoria"); | |
| 81 | |||
| 82 | ✗ | if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) == false) | |
| 83 | { | ||
| 84 | ✗ | LOG_ERR("Error initializing SDL: {}", SDL_GetError()); | |
| 85 | ✗ | return AppState::exit_failure; | |
| 86 | } | ||
| 87 | |||
| 88 | ✗ | const auto app_scale = eu::imgui::calculate_app_scale(); | |
| 89 | ✗ | std::tie(window_width, window_height) = eu::imgui::rescale_window(1280, 720, app_scale); | |
| 90 | |||
| 91 | #if defined(__APPLE__) | ||
| 92 | // GL 3.2 Core + GLSL 150 | ||
| 93 | const char* glsl_version = "#version 150"; | ||
| 94 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG); // Always required on Mac | ||
| 95 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | ||
| 96 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); | ||
| 97 | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2); | ||
| 98 | #else | ||
| 99 | // GL 3.0 + GLSL 130 | ||
| 100 | // const char* glsl_version = "#version 130"; | ||
| 101 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG); | |
| 102 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | |
| 103 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4); | |
| 104 | ✗ | SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3); // was 0 in dear imgui example?? | |
| 105 | #endif | ||
| 106 | |||
| 107 | ✗ | SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); | |
| 108 | ✗ | SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); | |
| 109 | |||
| 110 | ✗ | SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); | |
| 111 | ✗ | SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1); | |
| 112 | |||
| 113 | ✗ | SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8); | |
| 114 | ✗ | SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8); | |
| 115 | ✗ | SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8); | |
| 116 | ✗ | SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8); | |
| 117 | |||
| 118 | ✗ | window = SDL_CreateWindow("Editor sample", | |
| 119 | window_width, window_height, SDL_WINDOW_OPENGL | SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_RESIZABLE); | ||
| 120 | ✗ | if (!window) | |
| 121 | { | ||
| 122 | ✗ | LOG_ERR("Error creating window: {}", SDL_GetError()); | |
| 123 | ✗ | return AppState::exit_failure; | |
| 124 | } | ||
| 125 | |||
| 126 | ✗ | glContext = SDL_GL_CreateContext(window); | |
| 127 | ✗ | SDL_GetWindowSize(window, &window_width, &window_height); | |
| 128 | ✗ | if (!glContext) { | |
| 129 | ✗ | LOG_ERR("Error creating gl context: {}", SDL_GetError()); | |
| 130 | ✗ | return AppState::exit_failure; | |
| 131 | } | ||
| 132 | |||
| 133 | /* OpenGL setup */ | ||
| 134 | ✗ | const int glad_result = gladLoadGLLoader(SDL_GL_GetProcAddress); | |
| 135 | ✗ | if (glad_result == 0) | |
| 136 | { | ||
| 137 | ✗ | LOG_ERR("Failed to init glad, error: {0}", glad_result); | |
| 138 | ✗ | return AppState::exit_failure; | |
| 139 | } | ||
| 140 | |||
| 141 | ✗ | IMGUI_CHECKVERSION(); | |
| 142 | ✗ | ImGui::CreateContext(); | |
| 143 | ✗ | ImGuiIO& io = ImGui::GetIO(); | |
| 144 | ✗ | ImGui::StyleColorsDark(); | |
| 145 | ✗ | ImGui_ImplSDL3_InitForOpenGL(window, glContext); | |
| 146 | ✗ | ImGui_ImplOpenGL3_Init(glsl_version); | |
| 147 | |||
| 148 | { | ||
| 149 | ✗ | const std::string gl_vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR)); | |
| 150 | ✗ | const std::string gl_renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER)); | |
| 151 | ✗ | const std::string gl_version = reinterpret_cast<const char*>(glGetString(GL_VERSION)); | |
| 152 | ✗ | const std::string gl_shading_language_version = reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)); | |
| 153 | |||
| 154 | ✗ | LOG_INFO("Vendor: {0}", gl_vendor); | |
| 155 | ✗ | LOG_INFO("Renderer: {0}", gl_renderer); | |
| 156 | ✗ | LOG_INFO("Version OpenGL: {0}", gl_version); | |
| 157 | ✗ | LOG_INFO("Version GLSL: {0}", gl_shading_language_version); | |
| 158 | ✗ | } | |
| 159 | |||
| 160 | { | ||
| 161 | ✗ | ImFontConfig config; | |
| 162 | ✗ | config.FontDataOwnedByAtlas = false; | |
| 163 | ✗ | ImFont* font = io.Fonts->AddFontFromMemoryTTF( | |
| 164 | const_cast<void*>(static_cast<const void*>(OPENSANS_REGULAR_TTF_data)), | ||
| 165 | OPENSANS_REGULAR_TTF_size, | ||
| 166 | 18.0f, | ||
| 167 | &config | ||
| 168 | ); | ||
| 169 | ✗ | IM_ASSERT(font != nullptr); | |
| 170 | |||
| 171 | ✗ | eu::imgui::setup_scale(app_scale); | |
| 172 | } | ||
| 173 | |||
| 174 | ✗ | states.reset(new eu::render::State()); | |
| 175 | ✗ | render.reset(new eu::render::Render2(states.get())); | |
| 176 | |||
| 177 | ✗ | LOG_INFO("Editor started"); | |
| 178 | ✗ | return AppState::continue_running; | |
| 179 | } | ||
| 180 | |||
| 181 | ✗ | AppState App::on_event(const SDL_Event& ev) | |
| 182 | { | ||
| 183 | ✗ | ImGui_ImplSDL3_ProcessEvent(&ev); | |
| 184 | ✗ | switch (ev.type) | |
| 185 | { | ||
| 186 | ✗ | case SDL_EVENT_WINDOW_RESIZED: | |
| 187 | ✗ | LOG_INFO("Resized"); | |
| 188 | ✗ | SDL_GetWindowSize(window, &window_width, &window_height); | |
| 189 | ✗ | break; | |
| 190 | ✗ | case SDL_EVENT_QUIT: | |
| 191 | ✗ | return AppState::exit_ok; | |
| 192 | ✗ | default: | |
| 193 | // ignore other events | ||
| 194 | ✗ | break; | |
| 195 | } | ||
| 196 | |||
| 197 | ✗ | return AppState::continue_running; | |
| 198 | } | ||
| 199 | |||
| 200 | ✗ | AppState App::iterate() | |
| 201 | { | ||
| 202 | ✗ | ImGui_ImplOpenGL3_NewFrame(); | |
| 203 | ✗ | ImGui_ImplSDL3_NewFrame(); | |
| 204 | ✗ | ImGui::NewFrame(); | |
| 205 | |||
| 206 | ✗ | if (show_demo_window) | |
| 207 | { | ||
| 208 | ✗ | ImGui::ShowDemoWindow(&show_demo_window); | |
| 209 | } | ||
| 210 | |||
| 211 | ✗ | if (ImGui::Begin("Properties")) | |
| 212 | { | ||
| 213 | static eu::v3 pos = {0,0,0}; | ||
| 214 | static eu::v3 rot = {0, 0, 0}; | ||
| 215 | static eu::v3 scale = {1, 1, 1}; | ||
| 216 | |||
| 217 | ✗ | eu::imgui::label("Position"); | |
| 218 | ✗ | ImGui::DragFloat3("##Position", pos.get_data_ptr()); | |
| 219 | |||
| 220 | ✗ | eu::imgui::label("Rotation"); | |
| 221 | ✗ | ImGui::DragFloat3("##Rotation", rot.get_data_ptr()); | |
| 222 | |||
| 223 | ✗ | eu::imgui::label("Scale"); | |
| 224 | ✗ | ImGui::DragFloat3("##Scale", scale.get_data_ptr()); | |
| 225 | |||
| 226 | ✗ | eu::imgui::centered_button("Add component"); | |
| 227 | } | ||
| 228 | ✗ | ImGui::End(); | |
| 229 | |||
| 230 | { | ||
| 231 | ✗ | eu::render::RenderCommand cmd {.states = states.get(), .render = render.get(), .size = {.width = window_width, .height = window_height} }; | |
| 232 | |||
| 233 | // todo(Gustav): provide a pixel layout | ||
| 234 | ✗ | const auto screen = eu::render::LayoutData{ .style = eu::render::ViewportStyle::extended, | |
| 235 | ✗ | .requested_width = static_cast<float>(window_width), .requested_height = static_cast<float>(window_height) }; | |
| 236 | |||
| 237 | ✗ | cmd.clear(eu::colors::blue_sky, screen); | |
| 238 | |||
| 239 | ✗ | auto layer = eu::render::with_layer2(cmd, screen); | |
| 240 | ✗ | eu::render::Quad{ .tint = eu::colors::green_bluish }.draw(layer.batch, layer.viewport_aabb_in_worldspace.get_bottom(50)); | |
| 241 | ✗ | } | |
| 242 | |||
| 243 | ✗ | ImGui::Render(); | |
| 244 | ✗ | ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData()); | |
| 245 | ✗ | SDL_GL_SwapWindow(window); | |
| 246 | |||
| 247 | ✗ | return AppState::continue_running; | |
| 248 | } | ||
| 249 | |||
| 250 | ✗ | void App::destroy() | |
| 251 | { | ||
| 252 | ✗ | render.reset(); | |
| 253 | ✗ | states.reset(); | |
| 254 | |||
| 255 | ✗ | ImGui_ImplOpenGL3_Shutdown(); | |
| 256 | ✗ | ImGui_ImplSDL3_Shutdown(); | |
| 257 | ✗ | ImGui::DestroyContext(); | |
| 258 | |||
| 259 | ✗ | LOG_INFO("Shutting down"); | |
| 260 | ✗ | SDL_GL_DestroyContext(glContext); | |
| 261 | ✗ | glContext = nullptr; | |
| 262 | |||
| 263 | ✗ | SDL_DestroyWindow(window); | |
| 264 | ✗ | window = nullptr; | |
| 265 | ✗ | SDL_Quit(); | |
| 266 | ✗ | } | |
| 267 | |||
| 268 | // binding | ||
| 269 | ✗ | SDL_AppResult to_sdl_result(AppState state) | |
| 270 | { | ||
| 271 | ✗ | switch (state) | |
| 272 | { | ||
| 273 | ✗ | case AppState::continue_running: return SDL_APP_CONTINUE; | |
| 274 | ✗ | case AppState::exit_failure: return SDL_APP_FAILURE; | |
| 275 | ✗ | case AppState::exit_ok: return SDL_APP_SUCCESS; | |
| 276 | } | ||
| 277 | |||
| 278 | ✗ | return SDL_APP_FAILURE; | |
| 279 | } | ||
| 280 | |||
| 281 | ✗ | SDL_AppResult SDL_AppInit(void** out_app, int, char**) | |
| 282 | { | ||
| 283 | ✗ | auto app = new App(); | |
| 284 | ✗ | const auto create_result = app->create(); | |
| 285 | ✗ | if (create_result == AppState::continue_running) | |
| 286 | { | ||
| 287 | ✗ | *out_app = app; | |
| 288 | ✗ | return SDL_APP_CONTINUE; | |
| 289 | } | ||
| 290 | |||
| 291 | ✗ | delete app; | |
| 292 | ✗ | return to_sdl_result(create_result); | |
| 293 | } | ||
| 294 | |||
| 295 | ✗ | SDL_AppResult SDL_AppIterate(void* app_arg) | |
| 296 | { | ||
| 297 | ✗ | auto app = static_cast<App*>(app_arg); | |
| 298 | ✗ | const auto result = app->iterate(); | |
| 299 | ✗ | return to_sdl_result(result); | |
| 300 | } | ||
| 301 | |||
| 302 | ✗ | SDL_AppResult SDL_AppEvent(void* app_arg, SDL_Event* ev) | |
| 303 | { | ||
| 304 | ✗ | auto app = static_cast<App*>(app_arg); | |
| 305 | ✗ | const auto result = app->on_event(*ev); | |
| 306 | ✗ | return to_sdl_result(result); | |
| 307 | } | ||
| 308 | |||
| 309 | ✗ | void SDL_AppQuit(void* app_arg, SDL_AppResult result) | |
| 310 | { | ||
| 311 | ✗ | if (result == SDL_APP_FAILURE) | |
| 312 | { | ||
| 313 | ✗ | LOG_ERR("App crashed :("); | |
| 314 | } | ||
| 315 | |||
| 316 | ✗ | auto app = static_cast<App*>(app_arg); | |
| 317 | ✗ | delete app; | |
| 318 | ✗ | app = nullptr; | |
| 319 | ✗ | } | |
| 320 |