init

1 files changed, 115 insertions, 0 deletions

diff --git a/platform_win32.c b/platform_win32.c
new file mode 100644
index 0000000..7ebd16c
--- /dev/null
+++ b/platform_win32.c
@@ -0,0 +1,115 @@
+#define UNICODE
+#include <windows.h>
+
+#define SOFTRENDER_IMPLEMENTATION
+#include "softrender.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"softrender";
+
+    WNDCLASS wc = { 0 };
+
+    wc.lpfnWndProc   = WindowProc;
+    wc.hInstance     = hInstance;
+    wc.lpszClassName = CLASS_NAME;
+
+    RegisterClass(&wc);
+
+    HWND hwnd = CreateWindowEx(
+        0,
+        CLASS_NAME,
+        L"softrender",
+        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;
+
+    soft_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 !!!
+        soft_clear(canvas, 0xFF000000);
+        soft_draw_rect(canvas, 80, 70, 80 + 20, 70 + 40, 0xFFFF00FF);
+        soft_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;
+}