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authorShelley Chen <shchen@google.com>2020-07-10 14:52:43 -0700
committerJulius Werner <jwerner@chromium.org>2020-07-15 20:23:07 +0000
commit31a37887392e81e8a24eca83f4b261019c05ebd5 (patch)
treeb9256963b5c73c8cd0e4719faaba55c7c7c97f83 /Documentation/lib/flashmap.md
parentdf5571dc9d94717a3eb32c56c950715b504c1b52 (diff)
cbgfx: Add blend functions to calculate transparency
Up until now we have no way of adding transparency into our firmware screens. Add set_blend() and clear_blend() functions to store alpha value and rgb values to calculate alpha blending in calculate_colors(). BUG=b:144969091,b:160839199 BRANCH=puff TEST=dut-control power_state:rec press ctrl-d Ensure background is dimmed when dialog pops up Change-Id: I95468f27836d34ab80392727d726a69c09dc168e Signed-off-by: Shelley Chen <shchen@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43358 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
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