Implement play/stop cap and shell music

2026-05-27 19:00:04 -05:00
parent a499b4f032
commit d6bafb4403
9 changed files with 868 additions and 73 deletions
@@ -0,0 +1,113 @@
+#include "context.h"
+#include <string.h>
+#include "imgui/imgui.h"
+#include "imgui/backends/imgui_impl_sdl2.h"
+
+static SDL_Window *s_sdlWindow;
+static SDL_GLContext s_sdlGlContext;
+static SDL_GameController *s_controller;
+int WINDOW_WIDTH;
+int WINDOW_HEIGHT;
+
+void context_init(const char *title, int width, int height, int major, int minor)
+{
+    int profile;
+    #ifndef __APPLE__
+    GLenum glewInitResult;
+    #endif
+    int i;
+
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) goto err;
+
+    profile = major < 3 ? SDL_GL_CONTEXT_PROFILE_COMPATIBILITY : SDL_GL_CONTEXT_PROFILE_CORE;
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, major);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, minor);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, profile);
+    WINDOW_WIDTH = width;
+    WINDOW_HEIGHT = height;
+    s_sdlWindow = SDL_CreateWindow(
+        title,
+        SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
+        width, height,
+        SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE
+    );
+    if (!s_sdlWindow) goto err;
+    s_sdlGlContext = SDL_GL_CreateContext(s_sdlWindow);
+    SDL_GL_SetSwapInterval(1);
+    if (!s_sdlGlContext) goto err;
+    #ifndef __APPLE__
+    glewExperimental = GL_TRUE;
+    glewInitResult = glewInit();
+    if (glewInitResult != GLEW_OK) goto err;
+    #endif
+    s_controller = NULL;
+    for (i = 0; i < SDL_NumJoysticks(); ++i)
+    {
+        if (!SDL_IsGameController(i)) continue;
+        s_controller = SDL_GameControllerOpen(i);
+        printf("Using game controller: %s", SDL_GameControllerName(s_controller));
+        if (s_controller) break;
+    }
+    return;
+
+err:
+    SDL_GL_DeleteContext(s_sdlGlContext);
+    SDL_DestroyWindow(s_sdlWindow);
+    SDL_Quit();
+}
+
+SDL_GameController *context_get_controller(void)
+{
+    return s_controller;
+}
+
+SDL_Window *context_get_window(void)
+{
+    return s_sdlWindow;
+}
+
+SDL_GLContext context_get_gl_context(void)
+{
+    return s_sdlGlContext;
+}
+
+bool context_flip_frame_poll_events(void)
+{
+    bool still_running = true;
+    SDL_GL_SwapWindow(s_sdlWindow);
+    SDL_Event event;
+    while (SDL_PollEvent(&event))
+    {
+        ImGui_ImplSDL2_ProcessEvent(&event);
+        switch (event.type)
+        {
+            case SDL_QUIT:
+                still_running = false;
+                break;
+            case SDL_KEYDOWN:
+                if (event.key.keysym.sym == SDLK_ESCAPE)
+                    still_running = false;
+            case SDL_WINDOWEVENT:
+                if (event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
+                {
+                    WINDOW_WIDTH = event.window.data1;
+                    WINDOW_HEIGHT = event.window.data2;
+                    glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
+                }
+                break;
+        }
+    }
+    return still_running;
+}
+
+void context_terminate(void)
+{
+    if (!s_sdlWindow)
+        return;
+    if (s_controller)
+        SDL_GameControllerClose(s_controller);
+    SDL_GL_DeleteContext(s_sdlGlContext);
+    SDL_DestroyWindow(s_sdlWindow);
+    SDL_Quit();
+    s_sdlWindow = NULL;
+}