upgrade source to 2.0.8

Edward Rudd

2018-08-19 561f0d614098a95527367cc3f911e476f35643d6

 source/include/SDL_blendmode.h

@@ -1,6 +1,6 @@
/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
  Copyright (C) 1997-2018 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
@@ -25,8 +25,8 @@
 *  Header file declaring the SDL_BlendMode enumeration
 */

#ifndef _SDL_blendmode_h
#define _SDL_blendmode_h
#ifndef SDL_blendmode_h_
#define SDL_blendmode_h_

#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
@@ -47,10 +47,67 @@
    SDL_BLENDMODE_ADD = 0x00000002,      /**< additive blending
                                              dstRGB = (srcRGB * srcA) + dstRGB
                                              dstA = dstA */
    SDL_BLENDMODE_MOD = 0x00000004       /**< color modulate
    SDL_BLENDMODE_MOD = 0x00000004,      /**< color modulate
                                              dstRGB = srcRGB * dstRGB
                                              dstA = dstA */
    SDL_BLENDMODE_INVALID = 0x7FFFFFFF

    /* Additional custom blend modes can be returned by SDL_ComposeCustomBlendMode() */

} SDL_BlendMode;

/**
 *  \brief The blend operation used when combining source and destination pixel components
 */
typedef enum
{
    SDL_BLENDOPERATION_ADD              = 0x1,  /**< dst + src: supported by all renderers */
    SDL_BLENDOPERATION_SUBTRACT         = 0x2,  /**< dst - src : supported by D3D9, D3D11, OpenGL, OpenGLES */
    SDL_BLENDOPERATION_REV_SUBTRACT     = 0x3,  /**< src - dst : supported by D3D9, D3D11, OpenGL, OpenGLES */
    SDL_BLENDOPERATION_MINIMUM          = 0x4,  /**< min(dst, src) : supported by D3D11 */
    SDL_BLENDOPERATION_MAXIMUM          = 0x5   /**< max(dst, src) : supported by D3D11 */

} SDL_BlendOperation;

/**
 *  \brief The normalized factor used to multiply pixel components
 */
typedef enum
{
    SDL_BLENDFACTOR_ZERO                = 0x1,  /**< 0, 0, 0, 0 */
    SDL_BLENDFACTOR_ONE                 = 0x2,  /**< 1, 1, 1, 1 */
    SDL_BLENDFACTOR_SRC_COLOR           = 0x3,  /**< srcR, srcG, srcB, srcA */
    SDL_BLENDFACTOR_ONE_MINUS_SRC_COLOR = 0x4,  /**< 1-srcR, 1-srcG, 1-srcB, 1-srcA */
    SDL_BLENDFACTOR_SRC_ALPHA           = 0x5,  /**< srcA, srcA, srcA, srcA */
    SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA = 0x6,  /**< 1-srcA, 1-srcA, 1-srcA, 1-srcA */
    SDL_BLENDFACTOR_DST_COLOR           = 0x7,  /**< dstR, dstG, dstB, dstA */
    SDL_BLENDFACTOR_ONE_MINUS_DST_COLOR = 0x8,  /**< 1-dstR, 1-dstG, 1-dstB, 1-dstA */
    SDL_BLENDFACTOR_DST_ALPHA           = 0x9,  /**< dstA, dstA, dstA, dstA */
    SDL_BLENDFACTOR_ONE_MINUS_DST_ALPHA = 0xA   /**< 1-dstA, 1-dstA, 1-dstA, 1-dstA */

} SDL_BlendFactor;

/**
 *  \brief Create a custom blend mode, which may or may not be supported by a given renderer
 *
 *  \param srcColorFactor
 *  \param dstColorFactor
 *  \param colorOperation
 *  \param srcAlphaFactor
 *  \param dstAlphaFactor
 *  \param alphaOperation
 *
 *  The result of the blend mode operation will be:
 *      dstRGB = dstRGB * dstColorFactor colorOperation srcRGB * srcColorFactor
 *  and
 *      dstA = dstA * dstAlphaFactor alphaOperation srcA * srcAlphaFactor
 */
extern DECLSPEC SDL_BlendMode SDLCALL SDL_ComposeCustomBlendMode(SDL_BlendFactor srcColorFactor,
                                                                 SDL_BlendFactor dstColorFactor,
                                                                 SDL_BlendOperation colorOperation,
                                                                 SDL_BlendFactor srcAlphaFactor,
                                                                 SDL_BlendFactor dstAlphaFactor,
                                                                 SDL_BlendOperation alphaOperation);

/* Ends C function definitions when using C++ */
#ifdef __cplusplus
@@ -58,6 +115,6 @@
#endif
#include "close_code.h"

#endif /* _SDL_blendmode_h */
#endif /* SDL_blendmode_h_ */

/* vi: set ts=4 sw=4 expandtab: */