(svn r14630) -Add: support Allegro as video backend.

src/video/allegro_v.h

@@ -0,0 +1,33 @@
+/* $Id$ */
+
+/** @file allegro_v.h Base of the Allegro video driver. */
+
+#ifndef VIDEO_ALLEGRO_H
+#define VIDEO_ALLEGRO_H
+
+#include "video_driver.hpp"
+
+class VideoDriver_Allegro: public VideoDriver {
+public:
+	/* virtual */ const char *Start(const char * const *param);
+
+	/* virtual */ void Stop();
+
+	/* virtual */ void MakeDirty(int left, int top, int width, int height);
+
+	/* virtual */ void MainLoop();
+
+	/* virtual */ bool ChangeResolution(int w, int h);
+
+	/* virtual */ bool ToggleFullscreen(bool fullscreen);
+};
+
+class FVideoDriver_Allegro: public VideoDriverFactory<FVideoDriver_Allegro> {
+public:
+	static const int priority = 5;
+	/* virtual */ const char *GetName() { return "allegro"; }
+	/* virtual */ const char *GetDescription() { return "Allegro Video Driver"; }
+	/* virtual */ Driver *CreateInstance() { return new VideoDriver_Allegro(); }
+};
+
+#endif /* VIDEO_ALLEGRO_H */