mirror of https://github.com/axmolengine/axmol.git
68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
/****************************************************************************
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Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "BlendStateGL.h"
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#include "renderer/backend/opengl/UtilsGL.h"
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CC_BACKEND_BEGIN
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void BlendStateGL::reset()
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{
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glDisable(GL_BLEND);
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
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}
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BlendStateGL::BlendStateGL(const BlendDescriptor& descriptor)
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: _blendEnabled(descriptor.blendEnabled)
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, _rgbBlendOperation(UtilsGL::toGLBlendOperation(descriptor.rgbBlendOperation))
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, _alphaBlendOperation(UtilsGL::toGLBlendOperation(descriptor.alphaBlendOperation))
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, _sourceRGBBlendFactor(UtilsGL::toGLBlendFactor(descriptor.sourceRGBBlendFactor))
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, _destinationRGBBlendFactor(UtilsGL::toGLBlendFactor(descriptor.destinationRGBBlendFactor))
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, _sourceAlphaBlendFactor(UtilsGL::toGLBlendFactor(descriptor.sourceAlphaBlendFactor))
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, _destinationAlphaBlendFactor(UtilsGL::toGLBlendFactor(descriptor.destinationAlphaBlendFactor))
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, _writeMaskRed((uint32_t)descriptor.writeMask & (uint32_t)ColorWriteMask::RED)
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, _writeMaskGreen((uint32_t)descriptor.writeMask & (uint32_t)ColorWriteMask::GREEN)
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, _writeMaskBlue((uint32_t)descriptor.writeMask & (uint32_t)ColorWriteMask::BLUE)
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, _writeMaskAlpha((uint32_t)descriptor.writeMask & (uint32_t)ColorWriteMask::ALPHA)
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{
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}
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void BlendStateGL::apply() const
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{
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if (_blendEnabled)
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{
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glEnable(GL_BLEND);
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glBlendEquationSeparate(_rgbBlendOperation, _alphaBlendOperation);
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glBlendFuncSeparate(_sourceRGBBlendFactor,
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_destinationRGBBlendFactor,
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_sourceAlphaBlendFactor,
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_destinationAlphaBlendFactor);
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}
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else
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glDisable(GL_BLEND);
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glColorMask(_writeMaskRed, _writeMaskGreen, _writeMaskBlue, _writeMaskAlpha);
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}
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CC_BACKEND_END
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