45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
#include <renderer/gl/blender.hpp>
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namespace lt {
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glBlender::glBlender()
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: m_factor_map { // constants
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{ BlendFactor::ZERO, GL_ZERO },
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{ BlendFactor::ONE, GL_ONE },
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// source ,
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{ BlendFactor::SRC_COLOR, GL_SRC_COLOR },
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{ BlendFactor::INVERSE_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR },
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{ BlendFactor::SRC_ALPHA, GL_SRC_ALPHA },
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{ BlendFactor::INVERSE_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
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// destination ,
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{ BlendFactor::DST_COLOR, GL_DST_COLOR },
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{ BlendFactor::INVERSE_DST_COLOR, GL_ONE_MINUS_DST_COLOR },
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{ BlendFactor::DST_ALPHA, GL_DST_ALPHA },
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{ BlendFactor::INVERSE_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA },
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// source1 ,
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{ BlendFactor::SRC1_COLOR, GL_SRC1_COLOR },
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{ BlendFactor::INVERSE_SRC1_COLOR, GL_ONE_MINUS_SRC1_COLOR },
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{ BlendFactor::SRC1_ALPHA, GL_SRC1_ALPHA },
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{ BlendFactor::INVERSE_SRC1_ALPHA, GL_ONE_MINUS_SRC_ALPHA }
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}
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{
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}
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void glBlender::enable(BlendFactor srcFactor, BlendFactor dstFactor)
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{
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glEnable(GL_BLEND);
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glBlendFunc(m_factor_map.at(srcFactor), m_factor_map.at(dstFactor));
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}
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void glBlender::disable()
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{
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glDisable(GL_BLEND);
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}
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} // namespace lt
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