GteBlendState.cpp

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// David Eberly, Geometric Tools, Redmond WA 98052
// Copyright (c) 1998-2017
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
// File Version: 3.0.0 (2016/06/19)

#include <GTEnginePCH.h>
#include <Graphics/GteBlendState.h>
using namespace gte;


BlendState::BlendState()
    :
    enableAlphaToCoverage(false),
    enableIndependentBlend(false),
    blendColor({ 0.0f, 0.0f, 0.0f, 0.0f }),
    sampleMask(0xFFFFFFFFu)
{
    mType = GT_BLEND_STATE;

    for (int i = 0; i < NUM_TARGETS; ++i)
    {
        Target& trg = target[i];
        trg.enable = false;
        trg.srcColor = BM_ONE;
        trg.dstColor = BM_ZERO;
        trg.opColor = OP_ADD;
        trg.srcAlpha = BM_ONE;
        trg.dstAlpha = BM_ZERO;
        trg.opAlpha = OP_ADD;
        trg.mask = CW_ENABLE_ALL;
    }
}