git.r.bdr.sh / rbdr / super-polarity / blame
| Commit | Line | Data |
|---|---|---|
| 7407ac7f BB |
1 | /* |
| 2 | Simple DirectMedia Layer | |
| 3 | Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org> | |
| 4 | ||
| 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. | |
| 8 | ||
| 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: | |
| 12 | ||
| 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. | |
| 20 | */ | |
| 21 | ||
| 22 | /** | |
| 23 | * \file SDL_blendmode.h | |
| 24 | * | |
| 25 | * Header file declaring the SDL_BlendMode enumeration | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef _SDL_blendmode_h | |
| 29 | #define _SDL_blendmode_h | |
| 30 | ||
| 31 | #include "begin_code.h" | |
| 32 | /* Set up for C function definitions, even when using C++ */ | |
| 33 | #ifdef __cplusplus | |
| 34 | extern "C" { | |
| 35 | #endif | |
| 36 | ||
| 37 | /** | |
| 38 | * \brief The blend mode used in SDL_RenderCopy() and drawing operations. | |
| 39 | */ | |
| 40 | typedef enum | |
| 41 | { | |
| 42 | SDL_BLENDMODE_NONE = 0x00000000, /**< no blending | |
| 43 | dstRGBA = srcRGBA */ | |
| 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 | |
| 49 | dstA = dstA */ | |
| 50 | SDL_BLENDMODE_MOD = 0x00000004 /**< color modulate | |
| 51 | dstRGB = srcRGB * dstRGB | |
| 52 | dstA = dstA */ | |
| 53 | } SDL_BlendMode; | |
| 54 | ||
| 55 | /* Ends C function definitions when using C++ */ | |
| 56 | #ifdef __cplusplus | |
| 57 | } | |
| 58 | #endif | |
| 59 | #include "close_code.h" | |
| 60 | ||
| 61 | #endif /* _SDL_video_h */ | |
| 62 | ||
| 63 | /* vi: set ts=4 sw=4 expandtab: */ |