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#define UNICODE
#include <windows.h>
#define SPONGE_IMPLEMENTATION
#include "sponge.h"
// TODO(kard): ofc some resizing stuff
#define WIDTH 256
#define HEIGHT 256
static uint32_t pixel_buffer[WIDTH * HEIGHT];
LRESULT WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg) {
case WM_DESTROY: {
PostQuitMessage(0);
return 0;
}
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
}
int WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd
) {
const wchar_t CLASS_NAME[] = L"sponge";
WNDCLASS wc = { 0 };
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.lpszClassName = CLASS_NAME;
RegisterClass(&wc);
HWND hwnd = CreateWindowEx(
0,
CLASS_NAME,
L"sponge",
WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, // bla bla you can't resize window basically
CW_USEDEFAULT, CW_USEDEFAULT, WIDTH, HEIGHT,
NULL,
NULL,
hInstance,
NULL
);
if (hwnd == NULL)
return 1;
ShowWindow(hwnd, nShowCmd);
BITMAPINFO bmi;
ZeroMemory(&bmi, sizeof(bmi));
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = WIDTH;
bmi.bmiHeader.biHeight = -HEIGHT; // negative = top-down
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
sponge_Canvas canvas = {
.pixels = pixel_buffer,
.width = WIDTH,
.height = HEIGHT,
.stride = WIDTH,
};
MSG msg = {0};
BOOL running = TRUE;
while (running) {
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT) {
running = FALSE;
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if (!running) break;
// NOTE(kard): ACTUAL RENDERING CODE HERE !!!
sponge_clear(canvas, 0xFF000000);
sponge_draw_rect(canvas, 80, 70, 80 + 20, 70 + 40, 0xFFFF00FF);
sponge_draw_rect(canvas, 140, 70, 140 + 20, 70 + 40, 0xFFFF00FF);
HDC hdc = GetDC(hwnd);
StretchDIBits(
hdc,
0, 0, WIDTH, HEIGHT, // dest rectangle
0, 0, WIDTH, HEIGHT, // src rectangle
pixel_buffer,
&bmi,
DIB_RGB_COLORS,
SRCCOPY
);
InvalidateRect(hwnd, NULL, FALSE);
UpdateWindow(hwnd);
// TODO(kard): proper frame limiting
Sleep(16);
}
return (int) msg.wParam;
}
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