02a12f2dec
Update mingw and macOS SDL libraries to 2.24.0. (MSVC .lib files and Xcode project haven't been updated.) There is now a separate SDL dylib for macOS Universal Binary 1 and 2 because SDL 2.24.0 dropped support for macOS 10.6 (which is last to support x86). Documentation says SDL 2.24.0 also dropped macOS 10.7 and 10.8 too. So UB2 is now 10.9 or later while 10.5 to 10.8 live in UB1. Compiled using osxcross with macOS 11.3 SDK. Ran "strip -x" on Windows and macOS libraries. Ad-hoc signed dylib using PyOxidizer rcodesign to fix digest checksums after strip.
124 lines
5.2 KiB
C
124 lines
5.2 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 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_MUL = 0x00000008, /**< color multiply
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dstRGB = (srcRGB * dstRGB) + (dstRGB * (1-srcA))
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dstA = (srcA * dstA) + (dstA * (1-srcA)) */
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SDL_BLENDMODE_INVALID = 0x7FFFFFFF
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/* Additional custom blend modes can be returned by SDL_ComposeCustomBlendMode() */
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} SDL_BlendMode;
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/**
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* \brief The blend operation used when combining source and destination pixel components
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*/
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typedef enum
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{
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SDL_BLENDOPERATION_ADD = 0x1, /**< dst + src: supported by all renderers */
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SDL_BLENDOPERATION_SUBTRACT = 0x2, /**< dst - src : supported by D3D9, D3D11, OpenGL, OpenGLES */
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SDL_BLENDOPERATION_REV_SUBTRACT = 0x3, /**< src - dst : supported by D3D9, D3D11, OpenGL, OpenGLES */
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SDL_BLENDOPERATION_MINIMUM = 0x4, /**< min(dst, src) : supported by D3D11 */
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SDL_BLENDOPERATION_MAXIMUM = 0x5 /**< max(dst, src) : supported by D3D11 */
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} SDL_BlendOperation;
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/**
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* \brief The normalized factor used to multiply pixel components
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*/
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typedef enum
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{
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SDL_BLENDFACTOR_ZERO = 0x1, /**< 0, 0, 0, 0 */
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SDL_BLENDFACTOR_ONE = 0x2, /**< 1, 1, 1, 1 */
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SDL_BLENDFACTOR_SRC_COLOR = 0x3, /**< srcR, srcG, srcB, srcA */
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SDL_BLENDFACTOR_ONE_MINUS_SRC_COLOR = 0x4, /**< 1-srcR, 1-srcG, 1-srcB, 1-srcA */
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SDL_BLENDFACTOR_SRC_ALPHA = 0x5, /**< srcA, srcA, srcA, srcA */
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SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA = 0x6, /**< 1-srcA, 1-srcA, 1-srcA, 1-srcA */
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SDL_BLENDFACTOR_DST_COLOR = 0x7, /**< dstR, dstG, dstB, dstA */
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SDL_BLENDFACTOR_ONE_MINUS_DST_COLOR = 0x8, /**< 1-dstR, 1-dstG, 1-dstB, 1-dstA */
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SDL_BLENDFACTOR_DST_ALPHA = 0x9, /**< dstA, dstA, dstA, dstA */
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SDL_BLENDFACTOR_ONE_MINUS_DST_ALPHA = 0xA /**< 1-dstA, 1-dstA, 1-dstA, 1-dstA */
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} SDL_BlendFactor;
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/**
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* \brief Create a custom blend mode, which may or may not be supported by a given renderer
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*
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* \param srcColorFactor source color factor
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* \param dstColorFactor destination color factor
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* \param colorOperation color operation
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* \param srcAlphaFactor source alpha factor
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* \param dstAlphaFactor destination alpha factor
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* \param alphaOperation alpha operation
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*
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* The result of the blend mode operation will be:
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* dstRGB = dstRGB * dstColorFactor colorOperation srcRGB * srcColorFactor
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* and
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* dstA = dstA * dstAlphaFactor alphaOperation srcA * srcAlphaFactor
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*/
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extern DECLSPEC SDL_BlendMode SDLCALL SDL_ComposeCustomBlendMode(SDL_BlendFactor srcColorFactor,
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SDL_BlendFactor dstColorFactor,
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SDL_BlendOperation colorOperation,
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SDL_BlendFactor srcAlphaFactor,
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SDL_BlendFactor dstAlphaFactor,
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SDL_BlendOperation alphaOperation);
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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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