Cube  Check-in [42d4b57828]

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Comment:Port to SDL2
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SHA3-256: 42d4b57828b48b9e38d8be3edcebca4c7cbca9948d8792a320df1f92c13465be
User & Date: js on 2025-03-04 23:51:09
Other Links: manifest | tags
Context
2025-03-05
00:27
Reduce global variables check-in: 02dbc547c1 user: js tags: trunk
2025-03-04
23:51
Port to SDL2 check-in: 42d4b57828 user: js tags: trunk
23:03
Initial port to macOS check-in: f5b62f8203 user: js tags: trunk
Changes
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Modified meson.build from [3e8495e9ec] to [c0a1562e22]. 

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project('Cube', ['c', 'objcpp'],
  meson_version: '>=1.5.0')

add_global_arguments(
  [
    '-fobjc-arc',
    '-fobjc-arc-exceptions'
  ],
  language: 'objcpp')

objfw_dep = dependency('objfw')
sdl_dep = dependency('sdl12_compat', required: false)
if not sdl_dep.found()
  sdl_dep = dependency('SDL')
sdl_dep = dependency('SDL2')
endif
sdlimage_dep = dependency('SDL_image')
sdlmixer_dep = dependency('SDL_mixer')
sdlimage_dep = dependency('SDL2_image')
sdlmixer_dep = dependency('SDL2_mixer')
zlib_dep = dependency('zlib')

client_link_args = []
server_link_args = []
extra_deps = []

if host_machine.system() == 'windows'
︙

Modified src/Cube.mm from [d63e158bb1] to [c32806b2e7].

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{
	void *b = calloc(1, s);
	if (!b)
		fatal(@"out of memory!");
	return b;
}

SDL_Window *window;
int scr_w = 640;
int scr_h = 480;

void
screenshot()
{
	SDL_Surface *image;
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		SDL_FreeSurface(image);
	};
}

COMMAND(screenshot, ARG_NONE)
COMMAND(quit, ARG_NONE)

void
keyrepeat(bool on)
bool keyrepeat = false;
{
	SDL_EnableKeyRepeat(
	    on ? SDL_DEFAULT_REPEAT_DELAY : 0, SDL_DEFAULT_REPEAT_INTERVAL);
}

VARF(gamespeed, 10, 100, 1000, if (multiplayer()) gamespeed = 100);
VARP(minmillis, 0, 5, 1000);

int framesinmap = 0;

- (void)applicationDidFinishLaunching:(OFNotification *)notification
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	log("video: sdl");
	if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
		fatal(@"Unable to initialize SDL Video");

	log("video: mode");
	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
	if ((window = SDL_CreateWindow("cube engine", SDL_WINDOWPOS_UNDEFINED,
	if (SDL_SetVideoMode(scr_w, scr_h, 0,
	        SDL_OPENGL | (!windowed ? SDL_FULLSCREEN : 0)) == NULL)
	         SDL_WINDOWPOS_UNDEFINED, scr_w, scr_h,
	         SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL |
	             (!windowed ? SDL_WINDOW_FULLSCREEN : 0))) == NULL ||
	    SDL_GL_CreateContext(window) == NULL)
		fatal(@"Unable to create OpenGL screen");

	log("video: misc");
	SDL_WM_SetCaption("cube engine", NULL);
	SDL_WM_GrabInput(SDL_GRAB_ON);
	keyrepeat(false);
	SDL_SetWindowGrab(window, SDL_TRUE);
	SDL_SetRelativeMouseMode(SDL_TRUE);
	keyrepeat = false;
	SDL_ShowCursor(0);

	log("gl");
	gl_init(scr_w, scr_h);

	log("basetex");
	int xs, ys;
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		updateworld(millis);
		if (!demoplayback)
			serverslice((int)time(NULL), 0);
		static float fps = 30.0f;
		fps = (1000.0f / curtime + fps * 50) / 51;
		computeraytable(player1->o.x, player1->o.y);
		readdepth(scr_w, scr_h);
		SDL_GL_SwapBuffers();
		SDL_GL_SwapWindow(window);
		extern void updatevol();
		updatevol();
		if (framesinmap++ <
		    5) // cheap hack to get rid of initial sparklies, even when
		       // triple buffering etc.
		{
			player1->yaw += 5;
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			switch (event.type) {
			case SDL_QUIT:
				quit();
				break;

			case SDL_KEYDOWN:
			case SDL_KEYUP:
				if (keyrepeat || event.key.repeat == 0)
				keypress(event.key.keysym.sym,
				    event.key.state == SDL_PRESSED,
				    event.key.keysym.unicode);
					keypress(event.key.keysym.sym,
					    event.key.state == SDL_PRESSED,
					    event.key.keysym.sym);
				break;

			case SDL_MOUSEMOTION:
				if (ignore) {
					ignore--;
					break;
				};
				}
				mousemove(event.motion.xrel, event.motion.yrel);
				break;

			case SDL_MOUSEBUTTONDOWN:
			case SDL_MOUSEBUTTONUP:
				if (lasttype == event.type &&
				    lastbut == event.button.button)
︙

Modified src/console.mm from [2a75e21fbb] to [45e0d06f5e].

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	}
}
COMMANDN(bind, bindkey, ARG_2STR)

void
saycommand(char *init) // turns input to the command line on or off
{
	SDL_EnableUNICODE(saycommandon = (init != NULL));
	saycommandon = (init != NULL);
	if (saycommandon)
		SDL_StartTextInput();
	else
		SDL_StopTextInput();
	if (!editmode)
		keyrepeat(saycommandon);
		keyrepeat = saycommandon;
	if (!init)
		init = "";
	strcpy_s(commandbuf, init);
}
COMMAND(saycommand, ARG_VARI)

void
mapmsg(OFString *s)
{
	@autoreleasepool {
		strn0cpy(hdr.maptitle, s.UTF8String, 128);
	}
}
COMMAND(mapmsg, ARG_1STR)

#if !defined(OF_WINDOWS) && !defined(OF_MACOS)
# include <SDL_syswm.h>
# include <X11/Xlib.h>
#endif

void
pasteconsole()
{
#if defined(OF_WINDOWS)
	if (!IsClipboardFormatAvailable(CF_TEXT))
		return;
	if (!OpenClipboard(NULL))
	char *cb = SDL_GetClipboardText();
		return;
	char *cb = (char *)GlobalLock(GetClipboardData(CF_TEXT));
	strcat_s(commandbuf, cb);
	GlobalUnlock(cb);
	CloseClipboard();
#elif !defined(OF_MACOS)
	SDL_SysWMinfo wminfo;
	SDL_VERSION(&wminfo.version);
	wminfo.subsystem = SDL_SYSWM_X11;
	if (!SDL_GetWMInfo(&wminfo))
		return;
	int cbsize;
	char *cb = XFetchBytes(wminfo.info.x11.display, &cbsize);
	if (!cb || !cbsize)
		return;
	int commandlen = strlen(commandbuf);
	for (char *cbline = cb, *cbend;
	     commandlen + 1 < _MAXDEFSTR && cbline < &cb[cbsize];
	     cbline = cbend + 1) {
		cbend = (char *)memchr(cbline, '\0', &cb[cbsize] - cbline);
		if (!cbend)
			cbend = &cb[cbsize];
		if (commandlen + cbend - cbline + 1 > _MAXDEFSTR)
			cbend = cbline + _MAXDEFSTR - commandlen - 1;
		memcpy(&commandbuf[commandlen], cbline, cbend - cbline);
		commandlen += cbend - cbline;
		commandbuf[commandlen] = '\n';
		if (commandlen + 1 < _MAXDEFSTR && cbend < &cb[cbsize])
			++commandlen;
		commandbuf[commandlen] = '\0';
	};
	XFree(cb);
#endif
};
}

cvector vhistory;
int histpos = 0;

void
history(int n)
{
︙

Modified src/editing.mm from [631eed4fb7] to [693ad7f294].

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		resettagareas(); // clear trigger areas to allow them to be
		                 // edited
		player1->health = 100;
		if (m_classicsp)
			monsterclear(); // all monsters back at their spawns for
			                // editing
		projreset();
	};
	keyrepeat(editmode);
	}
	keyrepeat = editmode;
	selset = false;
	editing = editmode;
}
COMMANDN(edittoggle, toggleedit, ARG_NONE)

void
correctsel() // ensures above invariant
︙

Modified src/protos.h from [59c370b1c3] to [ec095dab28].

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// worldocull
extern void computeraytable(float vx, float vy);
extern int isoccluded(float vx, float vy, float cx, float cy, float csize);

// main
extern void fatal(OFString *s, OFString *o = @"");
extern void *alloc(int s);
extern SDL_Window *window;
extern void keyrepeat(bool on);
extern bool keyrepeat;

// rendertext
extern void draw_text(char *str, int left, int top, int gl_num);
extern void draw_textf(char *fstr, int left, int top, int gl_num, ...);
extern int text_width(char *str);
extern void draw_envbox(int t, int fogdist);
︙

Modified src/rendergl.mm from [0379a81562] to [deb96ccb7b].

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void
renderstripssky()
{
	glBindTexture(GL_TEXTURE_2D, skyoglid);
	loopv(strips) if (strips[i].tex == skyoglid)
	    glDrawArrays(GL_TRIANGLE_STRIP, strips[i].start, strips[i].num);
};
}

void
renderstrips()
{
	int lasttex = -1;
	loopv(strips) if (strips[i].tex != skyoglid)
	{
		if (strips[i].tex != lasttex) {
			glBindTexture(GL_TEXTURE_2D, strips[i].tex);
			lasttex = strips[i].tex;
		};
		}
		glDrawArrays(GL_TRIANGLE_STRIP, strips[i].start, strips[i].num);
	};
};
	}
}

void
overbright(float amount)
{
	if (hasoverbright)
		glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, amount);
};
}

void
addstrip(int tex, int start, int n)
{
	strip &s = strips.add();
	s.tex = tex;
	s.start = start;
	s.num = n;
};
}

VARFP(gamma, 30, 100, 300, {
	float f = gamma / 100.0f;
	Uint16 ramp[256];
	if (SDL_SetGamma(f, f, f) == -1) {

	SDL_CalculateGammaRamp(f, ramp);

	if (SDL_SetWindowGammaRamp(window, ramp, ramp, ramp) == -1) {
		conoutf(
		    @"Could not set gamma (card/driver doesn't support it?)");
		conoutf(@"sdl: %s", SDL_GetError());
	};
});
	}
})

void
transplayer()
{
	glLoadIdentity();

	glRotated(player1->roll, 0.0, 0.0, 1.0);
︙

Modified src/serverbrowser.mm from [b2e734a52a] to [442e527d8e].

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	resolversem = SDL_CreateSemaphore(0);
	resolvermutex = SDL_CreateMutex();

	while (threads > 0) {
		resolverthread &rt = resolverthreads.add();
		rt.query = NULL;
		rt.starttime = 0;
		rt.thread =
		rt.thread = SDL_CreateThread(resolverloop, &rt);
		    SDL_CreateThread(resolverloop, "resolverthread", &rt);
		--threads;
	};
};
	}
}

void
resolverstop(resolverthread &rt, bool restart)
{
	SDL_LockMutex(resolvermutex);
	SDL_KillThread(rt.thread);
	// SDL_KillThread(rt.thread);
	rt.query = NULL;
	rt.starttime = 0;
	rt.thread = NULL;
	if (restart)
		rt.thread =
		rt.thread = SDL_CreateThread(resolverloop, &rt);
		    SDL_CreateThread(resolverloop, "resolverthread", &rt);
	SDL_UnlockMutex(resolvermutex);
};
}

void
resolverclear()
{
	SDL_LockMutex(resolvermutex);
	resolverqueries.setsize(0);
	resolverresults.setsize(0);
︙

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