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rliimg add flip image example (#FS13745)

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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

Change-Id: Ia53933c9ad09d2a5b92af45eb7a1140b64b6ae01
This commit is contained in:
William Wilgus 2026-01-23 22:43:08 -05:00
parent 1194a968bd
commit a0bd28a408
1 changed files with 53 additions and 12 deletions
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65
apps/plugins/lua_scripts/rlimg.lua
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@ -672,6 +672,45 @@ function rotate_image(img)
rb.sleep(rb.HZ * 10)]]
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
w = img:width()
h = img:height()
--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")
--[[--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)
_lcd:update()
--restore the portion of the background we destroyed
_lcd:copy(screen_img, xr, yr, 1, 1)
d = d + i
if rb.get_plugin_action(0) == 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)]]
end -- flip_image
-- shows blitting with a mask
function blit_mask(dst)
local timer = _timer()
@ -826,12 +865,13 @@ function main_menu()
[6] = "Bouncing Ball (olive)",
[7] = "The Twist",
[8] = "Image Rotation",
[9] = "Long Text",
[10] = "Rainbow Image",
[11] = "Random Image",
[12] = "Clear Screen",
[13] = "Save Screen",
[14] = "Exit"
[9] = "Image Flip",
[10] = "Long Text",
[11] = "Rainbow Image",
[12] = "Random Image",
[13] = "Clear Screen",
[14] = "Save Screen",
[15] = "Exit"
}
local ft = {
[0] = exit_now, --if user cancels do this function
@ -846,16 +886,17 @@ function main_menu()
[6] = function(BOUNC) bounce_image(create_ball()) end,
[7] = function(TWIST) twist(get_logo()) end,
[8] = function(ROTAT) rotate_image(get_logo()) end,
[9] = long_text,
[10] = function(RAINB)
[9] = function(FLIP) flip_image(get_logo()) end,
[10] = long_text,
[11] = function(RAINB)
rainbow_img(_lcd()); _lcd:update(); rb.sleep(rb.HZ)
end,
[11] = function(RANDM)
[12] = function(RANDM)
random_img(_lcd()); _lcd:update(); rb.sleep(rb.HZ)
end,
[12] = function(CLEAR) _lcd:clear(BLACK); rock_lua() end,
[13] = function(SAVEI) _LCD:invert(); _img_save(_LCD, "/rocklua.bmp") end,
[14] = function(EXIT_) return true end
[13] = function(CLEAR) _lcd:clear(BLACK); rock_lua() end,
[14] = function(SAVEI) _LCD:invert(); _img_save(_LCD, "/rocklua.bmp") end,
[15] = function(EXIT_) return true end
}
if LCD_DEPTH < 2 then