BLEND_ALPHA_CO
BLEND_ALPHA_CO(p, color.red, color.green, color.blue, alpha);
BLEND_ALPHA_CO(p, color.red, color.green, color.blue, alpha);
BLEND_ALPHA_CO(p, colors->r, colors->g, colors->b, alpha);
BLEND_ALPHA_CO(p, colors->r, colors->g, colors->b, alpha);
BLEND_ALPHA_CO(p, color.red, color.green, color.blue, alpha);
BLEND_ALPHA_CO(p, color.red, color.green, color.blue, alpha);
BLEND_ALPHA_CO(p, c.r, c.g, c.b, alpha);
BLEND_ALPHA_CO(p, c.r, c.g, c.b, alpha);
BLEND_ALPHA_CO(p, c.r, c.g, c.b, alpha);
BLEND_ALPHA_CO(p, c.r, c.g, c.b, alpha);
BLEND_ALPHA_CO(p, c.r, c.g, c.b, alpha);