1 files changed, 96 insertions, 0 deletions
diff --git a/zbar/window/vfw.c b/zbar/window/vfw.c
new file mode 100644
index 0000000..8c485cb
--- /dev/null
+++ b/zbar/window/vfw.c
@@ -0,0 +1,96 @@
+/*------------------------------------------------------------------------
+ *  Copyright 2009 (c) Jeff Brown <spadix@users.sourceforge.net>
+ *
+ *  This file is part of the ZBar Bar Code Reader.
+ *
+ *  The ZBar Bar Code Reader is free software; you can redistribute it
+ *  and/or modify it under the terms of the GNU Lesser Public License as
+ *  published by the Free Software Foundation; either version 2.1 of
+ *  the License, or (at your option) any later version.
+ *
+ *  The ZBar Bar Code Reader is distributed in the hope that it will be
+ *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser Public License
+ *  along with the ZBar Bar Code Reader; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ *  Boston, MA  02110-1301  USA
+ *
+ *  http://sourceforge.net/projects/zbar
+ *------------------------------------------------------------------------*/
+
+#include "window.h"
+
+#include <vfw.h>
+
+extern int _zbar_window_bih_init(zbar_window_t *w, zbar_image_t *img);
+
+static int vfw_cleanup(zbar_window_t *w)
+{
+    if (w->hdd) {
+	DrawDibClose(w->hdd);
+	w->hdd = NULL;
+    }
+    return (0);
+}
+
+static int vfw_init(zbar_window_t *w, zbar_image_t *img, int new_format)
+{
+    if (new_format)
+	_zbar_window_bih_init(w, img);
+
+    w->dst_width = w->bih.biWidth = (img->width + 3) & ~3;
+    w->dst_height = w->bih.biHeight = img->height;
+
+    HDC hdc = GetDC(w->hwnd);
+    if (!hdc)
+	return (-1 /*FIXME*/);
+
+    if (!DrawDibBegin(w->hdd, hdc, w->width, w->height, &w->bih, img->width,
+		      img->height, 0))
+	return (-1 /*FIXME*/);
+
+    ReleaseDC(w->hwnd, hdc);
+    return (0);
+}
+
+static int vfw_draw(zbar_window_t *w, zbar_image_t *img)
+{
+    HDC hdc = GetDC(w->hwnd);
+    if (!hdc)
+	return (-1 /*FIXME*/);
+
+    zprintf(24, "DrawDibDraw(%dx%d -> %dx%d)\n", img->width, img->height,
+	    w->width, w->height);
+
+    DrawDibDraw(w->hdd, hdc, 0, 0, w->width, w->height, &w->bih,
+		(void *)img->data, 0, 0, w->src_width, w->src_height,
+		DDF_SAME_DRAW);
+
+    ValidateRect(w->hwnd, NULL);
+    ReleaseDC(w->hwnd, hdc);
+    return (0);
+}
+
+static uint32_t vfw_formats[] = { fourcc('B', 'G', 'R', '3'),
+				  fourcc('B', 'G', 'R', '4'),
+				  fourcc('J', 'P', 'E', 'G'), 0 };
+
+int _zbar_window_vfw_init(zbar_window_t *w)
+{
+    w->hdd = DrawDibOpen();
+    if (!w->hdd)
+	return (err_capture(w, SEV_ERROR, ZBAR_ERR_UNSUPPORTED, __func__,
+			    "unable to initialize DrawDib"));
+
+    uint32_t *fmt;
+    for (fmt = vfw_formats; *fmt; fmt++)
+	_zbar_window_add_format(w, *fmt);
+
+    w->init	  = vfw_init;
+    w->draw_image = vfw_draw;
+    w->cleanup	  = vfw_cleanup;
+    return (0);
+}