+init

1 files changed, 74 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..d06803a
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,74 @@
+#include <SDL2/SDL.h>
+#include <stdio.h>
+#include <windows.h>
+#include "math/math.h"
+#include "util/assert.h"
+#include "ssr.h"
+#include "example/example.h"
+
+SDL_Surface* suf;
+
+#define SCREEN_WIDTH 500
+#define SCREEN_HEIGHT 400
+
+typedef void(*F)(void*);
+F onload;
+F onupdate;
+F onevent;
+F ondraw;
+
+/*macro这里需要绕一下弯*/
+/*https://stackoverflow.com/questions/1489932/how-to-concatenate-twice-with-the-c-preprocessor-and-expand-a-macro-as-in-arg*/
+#define SETEXAMPLEF(f, e) \
+f = f##e;
+
+#define SETEXAMPLE(i) \
+SETEXAMPLEF(onload, i)\
+SETEXAMPLEF(ondraw, i)\
+SETEXAMPLEF(onevent, i)\
+SETEXAMPLEF(onupdate, i)
+
+int main(int argc, char* argv[])
+{
+	if (SDL_Init(SDL_INIT_VIDEO) < 0)
+		return 1;
+	SDL_Window* wnd = SDL_CreateWindow("Test", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
+	SDL_Event e;
+	suf = SDL_GetWindowSurface(wnd);
+	/* ARGB format */
+	ssr_assert(suf->format->BitsPerPixel == 32);
+	ssr_assert(suf->format->Rshift == 16);
+	ssr_assert(suf->format->Gshift == 8);
+	ssr_assert(suf->format->Bshift == 0);
+	/* init ssr */
+	ssr_Config config = {
+		SCREEN_WIDTH, SCREEN_HEIGHT,/* screen size */
+		0, /* double buffer */
+		suf->pixels /* screen buffer */ 
+	};
+	ssr_init(&config);
+	SETEXAMPLE(EXAMPLECUR);
+	onload(0);
+	/* main loop */
+	uint previous = SDL_GetTicks();
+	uint dt = 0;
+	while (1) {
+		while (SDL_PollEvent(&e)) {
+			if (e.type == SDL_QUIT) {
+				goto quit;
+			} else {
+				onevent(&e);
+			}
+		}
+		dt = SDL_GetTicks() - previous;
+		previous = dt + previous;
+		onupdate(&dt);
+		ondraw(0);
+		ssr_present();
+		SDL_UpdateWindowSurface(wnd);
+		Sleep(10); /*100fps limit*/
+	}
+	quit:
+	SDL_Quit();
+	return 0;
+}