Lines Matching refs:alpha
57 blend_color(rgb_color& a, const rgb_color& b, float alpha)
59 float alphaInv = 1.0 - alpha;
60 a.red = (uint8)(b.red * alphaInv + a.red * alpha);
61 a.green = (uint8)(b.green * alphaInv + a.green * alpha);
62 a.blue = (uint8)(b.blue * alphaInv + a.blue * alpha);
74 if (fColor.alpha < 255) {
76 float alpha = fColor.alpha / 255.0;
79 blend_color(h, kAlphaHigh, alpha);
81 blend_color(l, kAlphaLow, alpha);
93 blend_color(h, kAlphaHigh, alpha);
95 blend_color(l, kAlphaLow, alpha);
109 blend_color(h, kAlphaHigh, alpha);
111 blend_color(l, kAlphaLow, alpha);