divahook: Add initial Project Diva hook

divahook/_com10.c

@@ -0,0 +1,38 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdint.h>
+
+#include "board/sg-reader.h"
+
+#include "divahook/_com10.h"
+
+#include "hook/iohook.h"
+
+static HRESULT com10_handle_irp(struct irp *irp);
+
+static struct sg_reader com10_reader;
+
+HRESULT com10_hook_init(void)
+{
+    HRESULT hr;
+
+    hr = sg_reader_init(&com10_reader, 10);
+
+    if (FAILED(hr)) {
+        return hr;
+    }
+
+    return iohook_push_handler(com10_handle_irp);
+}
+
+static HRESULT com10_handle_irp(struct irp *irp)
+{
+    assert(irp != NULL);
+
+    if (!sg_reader_match_irp(&com10_reader, irp)) {
+        return iohook_invoke_next(irp);
+    }
+
+    return sg_reader_handle_irp(&com10_reader, irp);
+}