dmlib: dmsimple.c comparison

comparison dmsimple.c @ 578:cf5d44b36851

Add some initial code for video setup screen.

author	Matti Hamalainen <ccr@tnsp.org>
date	Fri, 12 Apr 2013 04:44:25 +0300
parents	2c3afff104c6
children	f165883c2ea6

comparison

equal deleted inserted replaced

-:742a05f64929
+:cf5d44b36851
 }
 static int engineLoadResources()
 {
-int err, loaded, total;
+int err, loaded = 0, total = 0;
+// First preload outside of the loop
 err = dmres_preload(engine.resources, TRUE, &loaded, &total);
 while ((err = dmres_preload(engine.resources, FALSE, &loaded, &total)) == DMERR_PROGRESS)
 {
 // Show a nice progress bar while loading
 return err;
 }
-static BOOL engineInitializeVideo()
+static BOOL engineGenInitializeVideo(int width, int height, int depth, Uint32 flags)
 {
 dmPrint(1, "Initializing SDL video %d x %d x %dbpp, flags=0x%08x\n",
-engine.optScrWidth, engine.optScrHeight, engine.optBitDepth, engine.optVFlags);
+width, height, depth, flags);
 SDL_FreeSurface(engine.screen);
-engine.screen = SDL_SetVideoMode(engine.optScrWidth, engine.optScrHeight, engine.optBitDepth, engine.optVFlags);
+engine.screen = SDL_SetVideoMode(width, height, depth, flags);
 if (engine.screen == NULL)
 {
 dmError("Can't SDL_SetVideoMode(): %s\n", SDL_GetError());
 return FALSE;
 }
+SDL_ShowCursor(SDL_DISABLE);
+SDL_WM_SetCaption(dmProgDesc, dmProgName);
 return TRUE;
+}
+static BOOL engineInitializeVideo(int width, int height, int depth, Uint32 flags)
+{
+return engineInitializeVideo(engine.optScrWidth, engine.optScrHeight,
+engine.optScrDepth, engine.optVFlags);
+}
+int engineVideoSetup()
+{
+DMBitmapFont *font = NULL;
+DMResource *file = NULL;
+SDL_Surface *menuBgImage = NULL;
+int menuState = -1, nmenuList;
+DMScaledBlitFunc menuBgBlit;
+// Compute a list of valid modes
+// Open video temporarily
+if (!engineGenInitializeVideo(DM_VIDEO_SETUP_WIDTH, DM_VIDEO_SETUP_HEIGHT, 32, SDL_SWSURFACE | SDL_DOUBLEBUF))
+goto out;
+// Fetch and decompress setup image, try regular resources first
+file = dmf_open(engine.resources, "SetupImage.png");
+if (file == NULL)
+file = dmf_create_memio(NULL, "SetupImage", engineSetupImage, sizeof(engineSetupImage));
+menuBgImage = dmLoadImageBitmapFont(file);
+dmf_close(file);
+if (menuBgImage == NULL)
+{
+dmError("Could not instantiate setup screen image, %d: %s\n",
+result, dmErrorStr(result));
+goto out;
+}
+if (menuBgImage->w != DM_VIDEO_SETUP_WIDTH ||
+menuBgImage->h != DM_VIDEO_SETUP_HEIGHT)
+{
+dmError("Setup screen background image does not match "
+"required dimensions (%dx%d vs %dx%d)\n",
+menuBgImage->w, menuBgImage->h,
+DM_VIDEO_SETUP_WIDTH, DM_VIDEO_SETUP_HEIGHT);
+goto out;
+}
+// Load up the bitmap font
+file = dmf_open(engine.resources, "SetupFont.fnt");
+if (file == NULL)
+file = dmf_create_memio(NULL, "SetupFont", engineSetupFont, sizeof(engineSetupFont));
+result = dmLoadBitmapFont(file, &font);
+dmf_close(file);
+if (result != DMERR_OK)
+{
+dmError("Could not instantiate setup screen font, %d: %s\n",
+result, dmErrorStr(result));
+goto out;
+}
+menuBgBlit = dmGetScaledBlitFunc(menuBgImage, engine.screen->format, DMD_NONE);
+// Enter the main loop of the menu
+while (!menuState)
+{
+while (SDL_PollEvent(&engine.event))
+switch (engine.event.type)
+{
+case SDL_KEYDOWN:
+switch (engine.event.key.keysym.sym)
+{
+case SDLK_ESCAPE:
+menuState = -1;
+break;
+case SDLK_SPACE:
+case SDLK_RETURN:
+menuState = 1;
+break;
+case SDLK_UP:
+if (menuChoice > 0)
+menuChoice--;
+break;
+case SDLK_DOWN:
+if (menuChoice < nmenuList - 1)
+menuChoice++;
+break;
+default:
+break;
+}
+break;
+case SDL_QUIT:
+menuState = -1;
+break;
+}
+// Draw frame
+if (SDL_MUSTLOCK(engine.screen) != 0 && SDL_LockSurface(engine.screen) != 0)
+{
+dmError("Can't lock surface.\n");
+goto out;
+}
+// Render the menu
+dmClearSurface(engine.screen, dmMapRGB(engine.screen, 0,0,0));
+menuBgBlit(menuBgImage, 0, 0, engine.screen->w, engine.screen->h, engine.screen);
+// Flip screen
+if (SDL_MUSTLOCK(engine.screen) != 0)
+SDL_UnlockSurface(engine.screen);
+SDL_Flip(engine.screen);
+SDL_Delay(20);
+}
+out:
+return menuState;
 }
 int main(int argc, char *argv[])
 {
 "TNSP simple demoengine initializing.\n",
 dmProgDesc, dmProgAuthor);
 dmPrint(0,
 "Using libSDL, "
+#ifdef DM_USE_PACKFS
+"zlib, "
+#endif
 #ifdef DM_USE_TREMOR
 "Tremor Vorbis codec"
 #endif
-#ifdef DM_USE_PACKFS
-", zlib and modified stb_image.\n"
-#else
 " and modified stb_image.\n"
-#endif
 "See README.txt for more information.\n");
 // Initialize resource subsystem
 dmPrint(1, "Initializing resources subsystem.\n");
 if ((err = dmres_init(&engine.resources, engine.optPackFilename, engine.optDataPath, engine.optResFlags, engineClassifier)) != DMERR_OK)
 {
 dmError("Could not initialize SDL: %s\n", SDL_GetError());
 goto error_exit;
 }
 initSDL = TRUE;
+// Present video mode selector
+if (engine.optVidSetup)
+engineVideoSetup();
 // Initialize audio parts
 if (engine.optAfmt.freq == 0 && engine.optAfmt.channels == 0)
 {
 // Defaults, if none seem to be set
 goto error_exit;
 }
 if (!engineInitializeVideo())
 goto error_exit;
-SDL_ShowCursor(SDL_DISABLE);
-SDL_WM_SetCaption(dmProgDesc, dmProgName);
 if (engine.demoInitPostVideo != NULL &&
 (err = engine.demoInitPostVideo(&engine)) != DMERR_OK)
 {
 dmError("demoInitPostVideo() failed, #%d: %s\n", err, dmErrorStr(err));
 error_exit:
 dmPrint(1, "Shutting down.\n");
 SDL_ShowCursor(SDL_ENABLE);
-if (engine.screen)
-SDL_FreeSurface(engine.screen);
 SDL_LockAudio();
 SDL_PauseAudio(1);
 #ifdef DM_USE_JSS
 jmpClose(engine.plr);
 jvmClose(engine.dev);

Mercurial > hg > dmlib

comparison dmsimple.c @ 578:cf5d44b36851