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rliimg add flip image example (#FS13745) Try #2

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FS#13745 - Add transpose (like in python pillow module) and smooth resizing in rocklua

most of this is supplied 'require image'

flipping an image is built-in to the image generator function

add image flip example to rliimg

pushed the wrong script

Change-Id: I2c512a70ed26b0457e46f2f2a187d3365783af67
This commit is contained in:
William Wilgus 2026-01-24 01:43:58 -05:00
parent b3683c84d8
commit 2b6029ae8d
1 changed files with 16 additions and 10 deletions
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26
apps/plugins/lua_scripts/rlimg.lua
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@ -674,38 +674,44 @@ end -- rotate_image
function flip_image(img)
local blitop = _blit.BOR
local i = 1
local d = 0
local ximg
local x, y, w, h, xr, yr
local x, y, w, h
w = img:width()
h = img:height()
x = (_lcd.W - w) / 2
y = (_lcd.H - h) / 2
--make a copy of original screen for restoration
local screen_img -- = _lcd:duplicate()
screen_img =_img.new(w, h)
screen_img :copy(_LCD, 1, 1, xr, yr, w, h)
--_print.f("CW")
screen_img :copy(_LCD, 1, 1, x, y, w, h)
--[[--Profiling code
local timer = _timer.start()]]
while d >= 0 do
-- copy our flipped image onto the background
_lcd:copy(ximg, x, y, w, 1, 1, h, false, blitop)
if d == 0 then
_lcd:copy(img, x, y, 1, 1, w, h, false, blitop)
elseif d == 1 then
_lcd:copy(img, x, y, 1, 1, -w, h, false, blitop)
elseif d == 2 then
_lcd:copy(img, x, y, 1, 1, w, -h, false, blitop)
elseif d == 3 then
_lcd:copy(img, x, y, 1, 1, -w, -h, false, blitop)
d = -1
end
_lcd:update()
--restore the portion of the background we destroyed
_lcd:copy(screen_img, xr, yr, 1, 1)
_lcd:copy(screen_img, x, y, 1, 1)
d = d + i
if rb.get_plugin_action(0) == CANCEL_BUTTON then
if rb.get_plugin_action(rb.HZ) == CANCEL_BUTTON then
break;
end
end
_lcd:copy(ximg, x, y, 1, 1, w, h)
--[[-- Profiling code
_print.f("%d", _timer.stop(timer))
rb.sleep(rb.HZ * 10)]]