mirror of
https://git.do.srb2.org/STJr/SRB2.git
synced 2024-11-16 09:42:57 +00:00
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
/**
|
|
* \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
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief The blend mode used in SDL_RenderCopy() and drawing operations.
|
|
*/
|
|
typedef enum
|
|
{
|
|
SDL_BLENDMODE_NONE = 0x00000000, /**< no blending
|
|
dstRGBA = srcRGBA */
|
|
SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending
|
|
dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
|
|
dstA = srcA + (dstA * (1-srcA)) */
|
|
SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending
|
|
dstRGB = (srcRGB * srcA) + dstRGB
|
|
dstA = dstA */
|
|
SDL_BLENDMODE_MOD = 0x00000004 /**< color modulate
|
|
dstRGB = srcRGB * dstRGB
|
|
dstA = dstA */
|
|
} SDL_BlendMode;
|
|
|
|
/* Ends C function definitions when using C++ */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#include "close_code.h"
|
|
|
|
#endif /* _SDL_video_h */
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|