2 Simple DirectMedia Layer
3 Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
23 * \file SDL_blendmode.h
25 * Header file declaring the SDL_BlendMode enumeration
28 #ifndef _SDL_blendmode_h
29 #define _SDL_blendmode_h
31 #include "begin_code.h"
32 /* Set up for C function definitions, even when using C++ */
38 * \brief The blend mode used in SDL_RenderCopy() and drawing operations.
42 SDL_BLENDMODE_NONE = 0x00000000, /**< no blending
44 SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending
45 dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
46 dstA = srcA + (dstA * (1-srcA)) */
47 SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending
48 dstRGB = (srcRGB * srcA) + dstRGB
50 SDL_BLENDMODE_MOD = 0x00000004 /**< color modulate
51 dstRGB = srcRGB * dstRGB
55 /* Ends C function definitions when using C++ */
59 #include "close_code.h"
61 #endif /* _SDL_blendmode_h */
63 /* vi: set ts=4 sw=4 expandtab: */