sdl back

2025-08-20 21:56:55 -05:00
parent 84f2735246
commit 3a753b1299
10 changed files with 220 additions and 97 deletions
--- a/src/display/display.c
+++ b/src/display/display.c
@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "display/display.h"
+#include "console/console.h"
+
+display_t DISPLAY;
+
+errorret_t displayInit(void) {
+  #if DUSK_DISPLAY_SDL2
+    if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER) != 0) {
+      errorThrow("SDL Failed to Initialize: %s", SDL_GetError());
+    }
+
+    // Set OpenGL attributes (Needs to be done now or later?)
+    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+    // Create window with OpenGL flag.
+    DISPLAY.window = SDL_CreateWindow(
+      "DuskSDL2",
+      SDL_WINDOWPOS_UNDEFINED,
+      SDL_WINDOWPOS_UNDEFINED,
+      DISPLAY_WINDOW_WIDTH_DEFAULT,
+      DISPLAY_WINDOW_HEIGHT_DEFAULT,
+      SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI |
+      SDL_WINDOW_OPENGL
+    );
+    if(!DISPLAY.window) {
+      errorThrow("SDL_CreateWindow failed: %s", SDL_GetError());
+    }
+
+    // Create OpenGL context
+    DISPLAY.glContext = SDL_GL_CreateContext(DISPLAY.window);
+    if(!DISPLAY.glContext) {
+      errorThrow("SDL_GL_CreateContext failed: %s", SDL_GetError());
+    }
+
+    SDL_GL_SetSwapInterval(1);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_LIGHTING);// PSP defaults this on?
+    glShadeModel(GL_SMOOTH); // Fixes color on PSP?
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+    glEnableClientState(GL_COLOR_ARRAY);// To confirm: every frame on PSP?
+    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+    glEnableClientState(GL_VERTEX_ARRAY);
+  #endif
+  
+  // For now, we just return an OK error.
+  errorOk();
+}
+
+errorret_t displayUpdate(void) {
+  #if DUSK_DISPLAY_SDL2
+    SDL_Event event;
+    while(SDL_PollEvent(&event)) {
+      switch(event.type) {
+        case SDL_QUIT:
+          consoleExec("quit");
+          break;
+
+        default:
+          break;
+      } 
+    }
+
+    SDL_GL_SwapWindow(DISPLAY.window);
+  #endif
+
+  // For now, we just return an OK error.
+  errorOk();
+}
+
+errorret_t displayDispose(void) {
+  #if DUSK_DISPLAY_SDL2
+    if(DISPLAY.glContext) {
+      SDL_GL_DeleteContext(DISPLAY.glContext);
+      DISPLAY.glContext = NULL;
+    }
+    if(DISPLAY.window) {
+      SDL_DestroyWindow(DISPLAY.window);
+      DISPLAY.window = NULL;
+    }
+    SDL_Quit();
+  #endif
+
+  // For now, we just return an OK error.
+  errorOk();
+}