127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
#include <cstdio>
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#include <GL/glew.h>
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_keyboard.h>
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#include "terminal.h"
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#include "gfx/shape_renderer.h"
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#include "ui/desktop.h"
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#include "ui/ui_window.h"
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const int SCREEN_WIDTH = 1280;
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const int SCREEN_HEIGHT = 720;
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int main(int argc, char** argv) {
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/* Init SDL. */
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if(!SDL_Init(SDL_INIT_VIDEO)) {
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printf("SDL could not initialise! SDL_ERROR: %s\n", SDL_GetError());
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return 1;
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}
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/* Set OpenGL attributes. */
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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/* Create a window. */
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SDL_Window* window = SDL_CreateWindow(
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"Bettola Client",
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SCREEN_WIDTH,
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SCREEN_HEIGHT,
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SDL_WINDOW_OPENGL
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);
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if(window == NULL) {
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printf("Unable to create window! SDL_ERROR: %s\n", SDL_GetError());
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return 1;
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}
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/* Create OpenGL context. */
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SDL_GLContext context = SDL_GL_CreateContext(window);
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if(context == NULL) {
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printf("OpenGL context could not be created! SDL_ERROR: %s\n", SDL_GetError());
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return 1;
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}
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/* Initialise GLEW. */
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glewExperimental = GL_TRUE;
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GLenum glewError = glewInit();
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if (glewError != GLEW_OK) {
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/* NOTE:
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* Dear future self, or other intrepid developer:
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* In some environments (like the Fedora VM I tested),
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* glewInit() returns an error here even when the context is valid.
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* This is a known quirk. We print the error but continue anyway,
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* because it's not fatal. Don't "fix" this by making it exit. Thank you.
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* It's GLEW, not you.
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*/
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fprintf(stderr, "Warning: glewInit failed with error code %u: %s. Attempting to continue anyway.\n",
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glewError, glewGetErrorString(glewError));
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}
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/* Configure OpenGL. */
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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/* Listen for text input. */
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SDL_StartTextInput(window);
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/* Init text renderer. */
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TextRenderer* txt_render_instance = new TextRenderer(SCREEN_WIDTH, SCREEN_HEIGHT);
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txt_render_instance->load_font("assets/fonts/hack/Hack-Regular.ttf", 14);
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/* Init shape renderer. */
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ShapeRenderer* shape_renderer_instance = new ShapeRenderer(SCREEN_WIDTH, SCREEN_HEIGHT);
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/* Create terminal. */
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Terminal* term = new Terminal();
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/* Create UI window and pass it a terminal. */
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UIWindow* test_window = new UIWindow("Terminal", 100, 100, 800, 500);
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test_window->set_content(term);
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/* Create desktop and add the window. */
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Desktop* desktop = new Desktop();
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desktop->add_window(test_window);
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/* timer for cursor blink. */
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Uint32 last_blink_time = 0;
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bool show_cursor = true;
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bool running = true;
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while(running) {
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/* Event handling. */
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SDL_Event event;
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while(SDL_PollEvent(&event)) {
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if(event.type == SDL_EVENT_QUIT) { running = false; }
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desktop->handle_event(&event);
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}
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desktop->update();
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Uint32 current_time = SDL_GetTicks();
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if(current_time - last_blink_time > 500) { /* Every 500ms. */
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show_cursor = !show_cursor;
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last_blink_time = current_time;
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}
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/* Clear screen. */
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glClearColor(0.1f, 0.1f, 0.1, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT);
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desktop->render(shape_renderer_instance, txt_render_instance, SCREEN_HEIGHT, show_cursor);
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/* It's really odd to call it SwapWindow now, rather than SwapBuffer. */
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SDL_GL_SwapWindow(window);
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}
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/* Cleanup. */
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delete desktop;
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delete shape_renderer_instance;
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delete txt_render_instance;
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SDL_GL_DestroyContext(context);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return 0;
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}
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