wip: move gfx to gfxhook, some borderless window stuff

gfxhook/util.c

@@ -0,0 +1,118 @@
+#include <windows.h>
+
+#include <stdbool.h>
+
+#include "gfxhook/util.h"
+
+#include "util/dprintf.h"
+
+void gfx_util_ensure_win_visible(HWND hwnd)
+{
+    /*
+     * Ensure window is maximized to avoid a Windows 10 issue where a
+     * fullscreen swap chain is not created because the window is minimized
+     * at the time of creation.
+     */
+    ShowWindow(hwnd, SW_RESTORE);
+}
+
+void gfx_util_borderless_fullscreen_windowed(HWND hwnd, LONG width, LONG height)
+{
+    BOOL ok;
+    HRESULT hr;
+
+    dprintf("Gfx: Resizing window to %ldx%ld\n", width, height);
+
+    SetWindowLongPtrW(hwnd, GWL_STYLE, WS_POPUP);
+    SetWindowLongPtrW(hwnd, GWL_EXSTYLE, WS_EX_TOPMOST);
+
+    ok = SetWindowPos(
+            hwnd,
+            HWND_TOP,
+            0,
+            0,
+            width,
+            height,
+            SWP_FRAMECHANGED | SWP_NOSENDCHANGING);
+
+    if (!ok) {
+        /* come on... */
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        dprintf("Gfx: SetWindowPos failed: %x\n", (int) hr);
+
+        return;
+    }
+
+    ok = ShowWindow(hwnd, SW_SHOWMAXIMIZED);
+
+    if (!ok) {
+        /* come on... */
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        dprintf("Gfx: ShowWindow failed: %x\n", (int) hr);
+
+        return;
+    }
+}
+
+HRESULT gfx_util_frame_window(HWND hwnd)
+{
+    HRESULT hr;
+    DWORD error;
+    LONG style;
+    RECT rect;
+    BOOL ok;
+
+    SetLastError(ERROR_SUCCESS);
+    style = GetWindowLongW(hwnd, GWL_STYLE);
+    error = GetLastError();
+
+    if (error != ERROR_SUCCESS) {
+        hr = HRESULT_FROM_WIN32(error);
+        dprintf("Gfx: GetWindowLongPtrW(%p, GWL_STYLE) failed: %x\n",
+                hwnd,
+                (int) hr);
+
+        return hr;
+    }
+
+    ok = GetClientRect(hwnd, &rect);
+
+    if (!ok) {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        dprintf("Gfx: GetClientRect(%p) failed: %x\n", hwnd, (int) hr);
+
+        return hr;
+    }
+
+    style |= WS_BORDER | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
+    ok = AdjustWindowRect(&rect, style, FALSE);
+
+    if (!ok) {
+        /* come on... */
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        dprintf("Gfx: AdjustWindowRect failed: %x\n", (int) hr);
+
+        return hr;
+    }
+
+    /* This... always seems to set an error, even though it works? idk */
+    SetWindowLongW(hwnd, GWL_STYLE, style);
+
+    ok = SetWindowPos(
+            hwnd,
+            HWND_TOP,
+            rect.left,
+            rect.top,
+            rect.right - rect.left,
+            rect.bottom - rect.top,
+            SWP_FRAMECHANGED | SWP_NOMOVE);
+
+    if (!ok) {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        dprintf("Gfx: SetWindowPos(%p) failed: %x\n", hwnd, (int) hr);
+
+        return hr;
+    }
+
+    return S_OK;
+}