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//! Blending modes for drawing (for render states)
// Enums
pub const Factor = enum(c_int) {
zero,
one,
srcColor,
oneMinusSrcColor,
dstColor,
oneMinusDstColor,
srcAlpha,
oneMinusSrcAlpha,
dstAlpha,
oneMinusDstAlpha
};
pub const Equation = enum(c_int) {
add,
subtract,
reverseSubtract
};
const BlendMode = @This();
// Preset blend modes
pub const BlendAlpha = BlendMode{
.color_src_factor = .srcAlpha,
.color_dst_factor = .oneMinusSrcAlpha,
.color_equation = .add,
.alpha_src_factor = .one,
.alpha_dst_factor = .oneMinusSrcAlpha,
.alpha_equation = .add
};
pub const BlendAdd = BlendMode{
.color_src_factor = .srcAlpha,
.color_dst_factor = .one,
.color_equation = .add,
.alpha_src_factor = .one,
.alpha_dst_factor = .one,
.alpha_equation = .add
};
pub const BlendMultiply = BlendMode{
.color_src_factor = .dstColor,
.color_dst_factor = .zero,
.color_equation = .add,
.alpha_src_factor = .dstColor,
.alpha_dst_factor = .zero,
.alpha_equation = .add
};
pub const BlendMin = BlendMode{
.color_src_factor = .one,
.color_dst_factor = .one,
.color_equation = .min,
.alpha_src_factor = .one,
.alpha_dst_factor = .one,
.alpha_equation = .min
};
pub const BlendMax = BlendMode{
.color_src_factor = .one,
.color_dst_factor = .one,
.color_equation = .max,
.alpha_src_factor = .one,
.alpha_dst_factor = .one,
.alpha_equation = .max
};
pub const BlendNone = BlendMode{
.color_src_factor = .one,
.color_dst_factor = .zero,
.color_equation = .add,
.alpha_src_factor = .one,
.alpha_dst_factor = .zero,
.alpha_equation = .add
};
const sfBlendMode = @import("../sfml_import.zig").c.sfBlendMode;
/// Bitcasts this blendmode to the csfml struct
/// For inner workings
pub fn _toCSFML(self: BlendMode) sfBlendMode {
return @bitCast(sfBlendMode, self);
}
color_src_factor: Factor,
color_dst_factor: Factor,
color_equation: Equation,
alpha_src_factor: Factor,
alpha_dst_factor: Factor,
alpha_equation: Equation
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