Saia PCD7.D410VTCF Manual
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Contents
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Saia-Burgess Controls Ltd.Bahnhofstrasse 18 I CH-3280 Murten I SwitzerlandT +41 (0)26 672 71 11 I F +41 (0)26 672 74 99Saia MicroBrowser panels PCD7.D4xxVxxx Manual&user guide VGA MB panel 26-858 E1– Rev12.docpage 56/59- Copy of GifList.txt under M1_FLASH/Config/-- In LOG.TXT (UBT_FS/LOG.TXT) for checkingStart Process Gif{PATH]M1_FLASH:/Webpages{FILE]Stop Process Gif21.6.2. Gif file decompression into video cache at start using dummy first page Put all gifs into a dummy first teq page.This solution allows decompression of gif files into video cache before showing the real first page of theproject.Advantage: Decompression is finished when you show the first page of the projectDisadvantage: You wait until the end of decompression before displaying the first page.Tip: Display a dummy page containing:- a text “Please wait while loading pictures”- and ViewJump_onTimeout macro which jumps to the right first page of the project21.6.3. Gif file decompression: evaluation/calculationAvailable for solution of sections 21.6.1 and 21.6.2How to evaluate the number of gifs in video cache based on number of pixels in the gif pictures?.Total video cache (permanent and flushable) is 16 MBytes. Including 4.. 6 Mbytes for permanent.Remaining ~ 10 -12 Mbyte are at disposal.Examples of calculation of number of pictures using permanent video cache of 4 MbytesExample 1: Pixel number for pictures is 640 x 480 pixels (full screen).12 000 000 Byte / (640 x 480)x2 = 19 that means max 19 gif files can be in cacheExample 2: Pixel number for pictures is ~ 120 x 120 pixels12 000 000 Byte / (120 x 120)x2 = that means max 400 gif files can be in cacheRemark: The ratio between the size of the gif file and the number of pixels is not a “constant” |
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