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@ -195,6 +195,7 @@ function show(no)
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rcount = rcount + 1
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fb:refresh(1)
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end
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slot_visible = slot;
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end
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function goto(no)
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@ -209,6 +210,21 @@ function goto(no)
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end
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end
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function modify_gamma(offset)
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local slot = slot_visible
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local gamma = cache[slot].dc:getGamma();
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if gamma == -1 then
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gamma = 1
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end
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print("modify_gamma slot="..slot.." gamma="..gamma.." offset="..offset)
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gamma = gamma + offset;
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cache[slot].dc:setGamma( gamma );
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optarg["G"] = gamma; -- for next page
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cache[slot].page:draw(cache[slot].dc, cache[slot].bb, 0, 0)
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fb:blitFullFrom(cache[slot].bb)
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fb:refresh(0)
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end
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function mainloop()
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while 1 do
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local ev = input.waitForEvent()
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@ -224,6 +240,10 @@ function mainloop()
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print(cache)
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elseif ev.code == KEY_BACK then
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return
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elseif ev.code == KEY_UP then
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modify_gamma( 0.2 )
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elseif ev.code == KEY_DOWN then
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modify_gamma( -0.2 )
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end
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local nsecs, nusecs = util.gettime()
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local dur = (nsecs - secs) * 1000000 + nusecs - usecs
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