Lines Matching refs:alpha

3644 // premultiplied alpha, so 50% opaque 100% saturated red is 0x7F7F_0000 and a
3711 // from non-premultiplied alpha to premultiplied alpha.
3715   // Multiplying by 0x101 (twice, once for alpha and once for color) converts
3720   // and alpha of 0x80 and 0x81:
3738 // from premultiplied alpha to non-premultiplied alpha.
3761 // from 4x16LE non-premultiplied alpha to 4x8 premultiplied alpha.
3779 // from 4x8 premultiplied alpha to 4x16LE non-premultiplied alpha.
3836 // wuffs_base__pixel_alpha_transparency is a pixel format's alpha channel
3838 // pixel. An RGBA pixel format (with alpha) can still have fully opaque pixels.
5092 // channels, working in premultiplied alpha. Ties favor the smaller index.
16637         // Convert to premultiplied alpha.
16693   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16746   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16784   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16828   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16861   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16893   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16919   // Calculate the inverse of the src-alpha: how much of the dst to keep.
16960     uint32_t alpha = argb & 0xFF000000;
16962         d, alpha | (r5 << 11) | (g6 << 5) | (b5 << 0));
17312     // Calculate the inverse of the src-alpha: how much of the dst to keep.
17368     // Calculate the inverse of the src-alpha: how much of the dst to keep.
17453     // Calculate the inverse of the src-alpha: how much of the dst to keep.
17573     // Calculate the inverse of the src-alpha: how much of the dst to keep.
17660     // Calculate the inverse of the src-alpha: how much of the dst to keep.
17985     // Calculate the inverse of the src-alpha: how much of the dst to keep.
18033     // Calculate the inverse of the src-alpha: how much of the dst to keep.
18108     // Calculate the inverse of the src-alpha: how much of the dst to keep.
18186     // Calculate the inverse of the src-alpha: how much of the dst to keep.
18261     // Calculate the inverse of the src-alpha: how much of the dst to keep.