Lines Matching full:alpha

240       - The device supports clipping/blending using the alpha channel of
241 	the framebuffer or VGA signal. Alpha blending makes no sense for
245       - The device supports alpha blending using a global alpha value.
246 	Alpha blending makes no sense for destructive overlays.
249       - The device supports clipping/blending using the inverted alpha
250 	channel of the framebuffer or VGA signal. Alpha blending makes no
302       - Use the alpha channel of the framebuffer to clip or blend
304 	output = framebuffer pixel * alpha + video pixel * (1 - alpha).
305 	The actual alpha depth depends on the framebuffer pixel format.
308       - Use a global alpha value to blend the framebuffer with video
309 	images. The blend function is: output = (framebuffer pixel * alpha
310 	+ video pixel * (255 - alpha)) / 255. The alpha value is
317       - Like ``V4L2_FBUF_FLAG_LOCAL_ALPHA``, use the alpha channel of the
319 	but with an inverted alpha value. The blend function is: output =
320 	framebuffer pixel * (1 - alpha) + video pixel * alpha. The actual
321 	alpha depth depends on the framebuffer pixel format.