diff src/video/SDL_drawline.c @ 2888:32e8bbba1e94

Added stubs for software implementations of blending fills and line drawing
author Sam Lantinga <slouken@libsdl.org>
date Sat, 20 Dec 2008 13:14:28 +0000
parents
children 1863c8b59658
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/SDL_drawline.c	Sat Dec 20 13:14:28 2008 +0000
@@ -0,0 +1,48 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2009 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library 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 General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_video.h"
+#include "SDL_blit.h"
+
+
+int
+SDL_DrawLine(SDL_Surface * dst, int x1, int y1, int x2, int y2, Uint32 color)
+{
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        SDL_SetError("SDL_DrawLine(): Unsupported surface format");
+        return (-1);
+    }
+
+    /* Perform clipping */
+    /* FIXME
+       if (!SDL_IntersectRect(dstrect, &dst->clip_rect, dstrect)) {
+       return (0);
+       }
+     */
+
+    SDL_Unsupported();
+    return -1;
+}
+
+/* vi: set ts=4 sw=4 expandtab: */