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use fmt;
use sdl2;
export fn main() void = {
sdl2::SDL_Init(sdl2::SDL_INIT_VIDEO)!;
defer sdl2::SDL_Quit();
const win = sdl2::SDL_CreateWindow("hi", sdl2::SDL_WINDOWPOS_UNDEFINED, sdl2::SDL_WINDOWPOS_UNDEFINED, 640, 480, sdl2::SDL_WindowFlags::NONE)!;
defer sdl2::SDL_DestroyWindow(win);
const wsurf = sdl2::SDL_GetWindowSurface(win)!;
const format = wsurf.format;
assert(format.bytesperpixel == 4, "can only work with u32 pixels");
fmt::printfln("got format {}. bytes per pixel {}. r{:x} g{:x} b{:x} a{:x}",
format.format, format.bytesperpixel, format.rmask, format.gmask, format.bmask, format.amask)!;
fmt::printfln("red: {:x} green {:x} blue {:x}",
sdl2::SDL_MapRGB(format, 255, 0, 0),
sdl2::SDL_MapRGB(format, 0, 255, 0),
sdl2::SDL_MapRGB(format, 0, 0, 255))!;
fmt::println(wsurf.w * wsurf.h)!;
const pixels = (wsurf.pixels as *opaque: *[*]u32)[..wsurf.w * wsurf.h];
let quit = false;
let n = 0z;
for (!quit) {
let ev = sdl2::event { ... };
for (sdl2::SDL_PollEvent(&ev)! == 1) switch (ev.event_type) {
case sdl2::SDL_EventType::QUIT => quit = true;
case sdl2::SDL_EventType::KEYDOWN => {
const keysym = ev.key.keysym.sym;
if (keysym == sdl2::SDL_Keycode::ESCAPE) quit = true;
fmt::println("got key", keysym: int)!;
};
case => void;
};
for (let i = 0z; i < 100; i+=1) {
pixels[n] = sdl2::SDL_MapRGB(format, 0, 255, 0);
n += 1;
};
sdl2::SDL_UpdateWindowSurface(win)!;
sdl2::SDL_Delay(1000 / 60);
// sdl2::SDL_SetRenderDrawColor(render, 50, 50, 50, 255)!;
// sdl2::SDL_RenderClear(render)!;
// rect.x = (sdl2::SDL_GetTicks(): int)/100;
// sdl2::SDL_SetRenderDrawColor(render, 255, 0, 0, 0)!;
// sdl2::SDL_RenderFillRect(render, &rect)!;
// sdl2::SDL_RenderPresent(render);
// sdl2::SDL_Delay(1000 / 60);
};
};
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