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b72938c861
An existing hint lets apps that don't need the timer resolution changed avoid this, to save battery, etc, but this fixes several problems in timing, audio callbacks not firing fast enough, etc. Fixes Bugzilla #2944.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_blendmode.h
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*
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* Header file declaring the SDL_BlendMode enumeration
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*/
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#ifndef _SDL_blendmode_h
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#define _SDL_blendmode_h
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief The blend mode used in SDL_RenderCopy() and drawing operations.
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*/
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typedef enum
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{
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SDL_BLENDMODE_NONE = 0x00000000, /**< no blending
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dstRGBA = srcRGBA */
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SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending
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dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
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dstA = srcA + (dstA * (1-srcA)) */
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SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending
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dstRGB = (srcRGB * srcA) + dstRGB
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dstA = dstA */
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SDL_BLENDMODE_MOD = 0x00000004 /**< color modulate
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dstRGB = srcRGB * dstRGB
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dstA = dstA */
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} SDL_BlendMode;
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* _SDL_blendmode_h */
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/* vi: set ts=4 sw=4 expandtab: */
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