uxn

commit d9e619d8a188dbfbb63de81b0f8313b6315e9e53
parent b7453e120671eee518994655b0a6db41b673f099
Author: Andrew Alderwick <andrew@alderwick.co.uk>
Date:   Sun, 26 Dec 2021 21:13:29 +0000

Revert "emu: use SDL_clamp" since that function is not available in Debian's SDL.

This reverts commit a967525cafbe17b2f64cc427ed588228098745dc.

Diffstat:
M
src/uxnemu.c
 | 
14
++++++++++----

1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/src/uxnemu.c b/src/uxnemu.c
@@ -45,6 +45,12 @@ static Uint8 zoom = 1;
 static Uint32 *ppu_screen, stdin_event, audio0_event;
 
 static int
+clamp(int val, int min, int max)
+{
+	return (val >= min) ? (val <= max) ? val : max : min;
+}
+
+static int
 error(char *msg, const char *err)
 {
 	fprintf(stderr, "%s: %s\n", msg, err);
@@ -98,7 +104,7 @@ set_window_size(SDL_Window *window, int w, int h)
 static void
 set_zoom(Uint8 scale)
 {
-	zoom = SDL_clamp(scale, 1, 3);
+	zoom = clamp(scale, 1, 3);
 	set_window_size(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
 }
 
@@ -194,8 +200,8 @@ static void
 domouse(SDL_Event *event)
 {
 	Uint8 flag = 0x00;
-	Uint16 x = SDL_clamp(event->motion.x - PAD, 0, ppu.width - 1);
-	Uint16 y = SDL_clamp(event->motion.y - PAD, 0, ppu.height - 1);
+	Uint16 x = clamp(event->motion.x - PAD, 0, ppu.width - 1);
+	Uint16 y = clamp(event->motion.y - PAD, 0, ppu.height - 1);
 	if(event->type == SDL_MOUSEWHEEL) {
 		devmouse->dat[7] = event->wheel.y;
 		return;
@@ -532,7 +538,7 @@ run(Uxn *u)
 			redraw(u);
 		if(!BENCH) {
 			elapsed = (SDL_GetPerformanceCounter() - begin) / (double)SDL_GetPerformanceFrequency() * 1000.0f;
-			SDL_Delay(SDL_clamp(16.666f - elapsed, 0, 1000));
+			SDL_Delay(clamp(16.666f - elapsed, 0, 1000));
 		}
 	}
 	return error("Run", "Ended.");