Convert an sf::BlendMode::Factor constant to the corresponding OpenGL constant.
| 87 | |
| 88 | // Convert an sf::BlendMode::Factor constant to the corresponding OpenGL constant. |
| 89 | std::uint32_t factorToGlConstant(sf::BlendMode::Factor blendFactor) |
| 90 | { |
| 91 | // clang-format off |
| 92 | switch (blendFactor) |
| 93 | { |
| 94 | case sf::BlendMode::Factor::Zero: return GL_ZERO; |
| 95 | case sf::BlendMode::Factor::One: return GL_ONE; |
| 96 | case sf::BlendMode::Factor::SrcColor: return GL_SRC_COLOR; |
| 97 | case sf::BlendMode::Factor::OneMinusSrcColor: return GL_ONE_MINUS_SRC_COLOR; |
| 98 | case sf::BlendMode::Factor::DstColor: return GL_DST_COLOR; |
| 99 | case sf::BlendMode::Factor::OneMinusDstColor: return GL_ONE_MINUS_DST_COLOR; |
| 100 | case sf::BlendMode::Factor::SrcAlpha: return GL_SRC_ALPHA; |
| 101 | case sf::BlendMode::Factor::OneMinusSrcAlpha: return GL_ONE_MINUS_SRC_ALPHA; |
| 102 | case sf::BlendMode::Factor::DstAlpha: return GL_DST_ALPHA; |
| 103 | case sf::BlendMode::Factor::OneMinusDstAlpha: return GL_ONE_MINUS_DST_ALPHA; |
| 104 | } |
| 105 | // clang-format on |
| 106 | |
| 107 | sf::err() << "Invalid value for sf::BlendMode::Factor! Fallback to sf::BlendMode::Factor::Zero." << std::endl; |
| 108 | assert(false); |
| 109 | return GL_ZERO; |
| 110 | } |
| 111 | |
| 112 | |
| 113 | // Convert an sf::BlendMode::Equation constant to the corresponding OpenGL constant. |