Use the enumerated type for blend and scale mode instead of int

Renamed SDL_TextureScaleMode to SDL_ScaleMode

include/SDL_blendmode.h

@@ -0,0 +1,64 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2010 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
+*/
+
+/**
+ *  \file SDL_blendmode.h
+ *  
+ *  Header file declaring the SDL_BlendMode enumeration
+ */
+
+#ifndef _SDL_blendmode_h
+#define _SDL_blendmode_h
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+/**
+ *  \brief The blend mode used in SDL_RenderCopy() and drawing operations.
+ */
+typedef enum
+{
+    SDL_BLENDMODE_NONE = 0x00000000,     /**< No blending */
+    SDL_BLENDMODE_MASK = 0x00000001,     /**< dst = A ? src : dst 
+                                              (alpha is mask) */
+    
+    SDL_BLENDMODE_BLEND = 0x00000002,    /**< dst = (src * A) + (dst * (1-A)) */
+    SDL_BLENDMODE_ADD = 0x00000004,      /**< dst = (src * A) + dst */
+    SDL_BLENDMODE_MOD = 0x00000008       /**< dst = src * dst */
+} SDL_BlendMode;
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_video_h */
+
+/* vi: set ts=4 sw=4 expandtab: */