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#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 600 /*800*/
#define SCREEN_HEIGHT 500 /*600*/
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_EVERYTHING) < 0)
return 1;
SDL_Window* wnd = SDL_CreateWindow("Soft Shade Room", 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;
}
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