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\cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \clshdng10000\cltxlrtb\clftsWidth3\clwWidth1842\clshdngraw10000 \cellx2835\clvertalt\clbrdrt
\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \clshdng10000\cltxlrtb\clftsWidth3\clwWidth6096\clshdngraw10000 \cellx8931\pard\plain
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874 Date\cell Revision Version\cell Description\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow0\irowband0\ts11\trgaph108\trleft-108\trhdr\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \clshdng10000\cltxlrtb\clftsWidth3\clwWidth1101\clshdngraw10000 \cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\clshdng10000\cltxlrtb\clftsWidth3\clwWidth1842\clshdngraw10000 \cellx2835\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\clshdng10000\cltxlrtb\clftsWidth3\clwWidth6096\clshdngraw10000 \cellx8931\row }\trowd \irow1\irowband1\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1
\trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth1101\clshdrawnil \cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1842\clshdrawnil \cellx2835
\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6096\clshdrawnil \cellx8931\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0
{\insrsid10634874 8/12/97\cell 1\cell First version of document\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow1\irowband1\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1
\trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1
\clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1101\clshdrawnil \cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1
\clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1842\clshdrawnil \cellx2835\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6096\clshdrawnil \cellx8931\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 10/12/97\cell 1.1\cell Removed CONE references as no work should be necessary\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow2\irowband2\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1101\clshdrawnil \cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth1842\clshdrawnil \cellx2835\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6096\clshdrawnil \cellx8931\row
}\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 9/4/03\cell 1.2\cell 24 bpp unpacked video mode added \endash EColor16MU\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow3\irowband3\lastrow \ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv
\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth1101\clshdrawnil \cellx993\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1842\clshdrawnil \cellx2835
\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6096\clshdrawnil \cellx8931\row }\pard\plain
\s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189374}Glossary{\*\bkmkend _Toc492189374}
\par }\trowd \irow0\irowband0\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1
\trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701
\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\pard\plain
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874 BITGDI\cell The screen and bitmap specific graphics drawing component\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow0\irowband0\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 BMCONV\cell Program for converting bitmaps between }{\insrsid10634874 Symbian}{\insrsid10634874
and Windows formats\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow1\irowband1\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb
\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb
\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 CRT\cell Cathode Ray Tube - TV style computer monitor\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow2\irowband2\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Ecolor16\cell }{\insrsid10634874 Symbian}{\insrsid10634874
display mode using a 4 bit index into a colour palette\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow3\irowband3\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl
\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl
\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Ecolor256\cell }{\insrsid10634874 Symbian}{\insrsid10634874
display mode using an 8 bit index into a colour palette\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow4\irowband4\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl
\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl
\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Ecolor64K\cell }{\insrsid10634874 Symbian}{\insrsid10634874
display mode using 16 bits to represent an RGB value (5,6,5)\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow5\irowband5\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl
\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl
\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Ecolor16M\cell }{\insrsid10634874 Symbian}{\insrsid10634874
display mode using 24 bits to exactly represent an RGB value (8,8,8)\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow6\irowband6\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1
\trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1
\clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1
\clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Ecolor16MU\cell }{\insrsid10634874 Symbian}{\insrsid10634874
display mode using 24 bits to exactly represent an RGB value (8,8,8). 32 memory bits are occupied.\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow7\irowband7\ts11\trgaph108\trleft-108
\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt
\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1
\clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Egray256\cell }{\insrsid10634874 Symbian}{
\insrsid10634874 display mode using 8 bits to represent a grey value (0-black, 255-white)\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow8\irowband8\ts11\trgaph108\trleft-108\trbrdrt
\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt
\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb
\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 EIKON\cell Policy-dependent graphical controls component
\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow9\irowband9\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 FBSERV\cell Font and Bitmap server - handles loading and storing bitmaps and fonts\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow10\irowband10\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 FORM\cell Text formatting component\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow11\irowband11\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Gamma correction\cell A scheme to compensate for a display\rquote s non-linear voltage to intensity ratio
\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow12\irowband12\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1
\trbrdrr\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1
\clbrdrr\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 GDI\cell The common abstract graphics classes component\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow13\irowband13\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 High-colour\cell Common display mode using 15/16 bits to represent an RGB value (5,5,5/5,6,5)\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow14\irowband14\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 LCD\cell Liquid Crystal Display - Laptop style computer monitor\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow15\irowband15\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Netscape\cell A popular Web browser\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow16\irowband16\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 NextStep\cell A Unix-based operating system\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow17\irowband17\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 RGB\cell Three byte value specifying components of a colour (Red, Green & Blue)\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow18\irowband18\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 TRgb\cell }{\insrsid10634874 Symbian}{\insrsid10634874 class representing an RGB value\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow19\irowband19\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 True-colour\cell Common display mode using 24 bits to represent an RGB value (8,8,8)\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow20\irowband20\ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 WSERV\cell Window server - handles multiple application UI events\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow21\irowband21\lastrow \ts11\trgaph108\trleft-108\trbrdrt\brdrs\brdrw15\brdrcf1 \trbrdrl\brdrs\brdrw15\brdrcf1 \trbrdrb\brdrs\brdrw15\brdrcf1 \trbrdrr
\brdrs\brdrw15\brdrcf1 \trbrdrh\brdrs\brdrw15\brdrcf1 \trbrdrv\brdrs\brdrw15\brdrcf1 \trftsWidth1\trpaddl108\trpaddr108\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr
\brdrs\brdrw15\brdrcf1 \cltxlrtb\clftsWidth3\clwWidth1809\clshdrawnil \cellx1701\clvertalt\clbrdrt\brdrs\brdrw15\brdrcf1 \clbrdrl\brdrs\brdrw15\brdrcf1 \clbrdrb\brdrs\brdrw15\brdrcf1 \clbrdrr\brdrs\brdrw15\brdrcf1
\cltxlrtb\clftsWidth3\clwWidth6946\clshdrawnil \cellx8647\row }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {
\insrsid10634874 {\*\bkmkstart _Toc492189375}Introduction{\*\bkmkend _Toc492189375}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874
The aim of this project is to provide EPOC32 support for colour display devices. This requires work at a number of levels - from supporting colour bitmaps through to \'93colouring\'94
the built-in applications. Whilst most interfaces support the notion of a full-colour \'93RGB\'94
value, currently there is no code for displaying anything other than four and sixteen shades of grey (including black & white). This project aims to implement colour support in such a way as to be transparent to applications and EPOC32 com
ponents not directly involved in the project.
\par }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189376}Requirements
{\*\bkmkend _Toc492189376}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874
The primary requirement is to allow the user to specify the use of a particular colour, as described by a TRgb, and have that colour rendered on a machine\rquote s display device as closely as possible to the colour specified.
\par
\par A related requirement is to allow arrays of colours to be stored as bitmaps and displayed at a later date in the same manner. It should also be possible to import colour bitmaps from a PC.
\par
\par The policy-dependent layer of EPOC32 - EIKON - should use colour in its display of controls and allow the user to change those colours, storing the user\rquote s current \'93palette\'94 of control colours.
\par }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189377}Functional spec
{\*\bkmkend _Toc492189377}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874 Required functionality categorised by component:
\par
\par }{\b\insrsid10634874 GDI}{\insrsid10634874 - Provision of TRgb functions for handling EColor256, EColor64, EColor16M and EColor16MU display mode colours, based on fixed palettes, is desirable.
\par
\par }{\b\insrsid10634874 BMCONV}{\insrsid10634874 - Allow conversion between windows bitmaps and }{\insrsid10634874 Symbian}{\insrsid10634874 bitmaps in any of the available display modes and back again (the framework for this is already in place).
\par
\par }{\b\insrsid10634874 FBSERV}{\insrsid10634874 - Extend support for loading, saving and reading from bitmaps to include EColor16 and EColor256 modes.
\par
\par }{\b\insrsid10634874 BITGDI}{\insrsid10634874
- Support for drawing to bitmaps (class CFbsBitmapDevice) in EColor16 and EColor256 modes. Support for drawing to screen (class CFbsScreenDevice) in EColor16 and EColor256 modes in the appropriate platform format (hardware-dependent screen device driver
s). EColor16 mode should use an EGA palette consisting of the three primary colours and the three secondary colours in full and half brightness along with four shades of grey (including black & white).
\par
\par }{\b\insrsid10634874 WSERV}{\insrsid10634874 - Allow clients to use CFbsScreenDevice objects of the appropriate mode for the hardware present.
\par
\par }{\b\insrsid10634874 FORM}{\insrsid10634874 - Support for colour usage in FORM classes. (This shouldn\rquote t require any extra work.)
\par
\par }{\b\insrsid10634874 EIKON}{\insrsid10634874 - Allow applications and users control over the colours used for drawing UI elements.
\par
\par }{\b\insrsid10634874 Applications}{\insrsid10634874 - Support for colour usage generally.
\par }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189378}Timescale estimates
{\*\bkmkend _Toc492189378}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874 Timescales estimated by component:
\par
\par }{\b\insrsid10634874 GDI}{\insrsid10634874 \tab \tab - \'bd week
\par
\par }{\b\insrsid10634874 BMCONV}{\insrsid10634874 \tab - \'bd week
\par
\par }{\b\insrsid10634874 FBSERV}{\insrsid10634874 \tab - 1\'bd weeks
\par
\par }{\b\insrsid10634874 BITGDI}{\insrsid10634874 \tab - 3 weeks
\par
\par }{\b\insrsid10634874 WSERV}{\insrsid10634874 \tab - 4 weeks
\par
\par }{\b\insrsid10634874 FORM}{\insrsid10634874 \tab \tab - \'bd week
\par
\par }{\b\insrsid10634874 EIKON}{\insrsid10634874 \tab \tab - 4 weeks
\par
\par }{\b\insrsid10634874 Applications}{\insrsid10634874 \tab - Beyond the scope of this project
\par
\par }{\b\insrsid10634874 Total}{\insrsid10634874 \tab \tab - 14 weeks
\par }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189379}Omissions
{\*\bkmkend _Toc492189379}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\insrsid10634874
Variable palettes. Commonly supported colour schemes offer variable palettes for 16 and 256 colour modes. This enables (at least for 256 colour systems) applications to approach a more realistic display of images imported from high- or true-colour syste
ms. This functionality is unnecessary at this time.
\par
\par Gamma correction. Given that our primary targets are hand-held devices with LCD, gamma correction would seem to be overkill as far as this project is concerned. It is really only appropriate for WYSIWYG CRTs and high-end laptop LCD displays.
\par
\par Dithering. There are many dithering schemes possible that can give some improvement on the colours available. They operate on a per-pixel basis and can slow drawing code down dramatically. As such they are not considered appropriate for this project.
\par }\pard\plain \s1\ql \li0\ri0\sb480\sa200\keepn\widctlpar\faauto\outlinelevel0\adjustright\rin0\lin0\itap0 \b\f1\fs28\lang2057\langfe1033\kerning28\cgrid\langnp2057\langfenp1033 {\insrsid10634874 {\*\bkmkstart _Toc492189380}Discussion
{\*\bkmkend _Toc492189380}
\par }\pard\plain \ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 \fs20\lang2057\langfe1033\cgrid\langnp2057\langfenp1033 {\b\insrsid10634874 Schemes for colour implementation
\par }{\insrsid10634874
\par Both 16 and 256 colour modes use a hardware palette. The main choice to be made for the low-level is whether this palette is fixed or variable.
To retain acceptable clarity of display EIKON would require a number of colours to be guaranteed present. This could be accomplished in one of two ways. Reserve a fraction of the palette entries for the system, or have the whole palette fixed.
\par
\par The fir
st choice gives the user more power to display imported pictures more accurately because they can find the n (where n is the number of non-system palette entries) most common colours in their picture and set the palette appropriately. This is generally o
f use to picture viewer programs, although some interesting effects can be produced by animating the palette (of interest to games programmers and the like).
\par The second choice simplifies the low-level colour support design and reduces the development time o
f such a system. Given the minuscule size of a 16 colour palette it would seem more appropriate to simply use the EGA colour palette anyway. This consists of the three primary and three secondary colours at full and half brightness along with black, whi
te and light & dark grey.
\par
\par As for 256 colours, the Netscape Web browser uses the \'93Netscape colour cube\'94 [http://the-light.com/colclick.html] on 256 colour systems to give a generally acceptable default palette with a good distribution of colours that will m
ake most pictures recognisable, if not photo quality. This consists of all combinations of component values increasing in steps of 51 from 0 to 255. This gives a 6x6x6 colour cube, i.e. 216 colours. The remaining spaces could be filled with more grey s
h
ades or possibly more green/lighter colours as the eye is more sensitive to these shades. To experience this with Netscape or Internet Explorer, set your PC display mode to 256 colours and surf the web. The 40 extra colours could be composed of 10 extra
greys to make a total of 16 grey-shades (including black & white) and 10 extra each of the three primaries. This scheme works well because it uses the values 0x11, 0x22, 0x44, 0x55, 0x77, 0x88, 0xaa, 0xbb, 0xdd and 0x33 which complement the 6x6x6 values
of 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff. Furthermore, if the palette is arranged properly then inverting a colour simply requires the inverting of its palette index. This is achieved by centring the colours in the palette. An example layout might be:
\par
\par }\trowd \irow0\irowband0\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrs\brdrw15
\clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Colour range\cell Colours in range\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow0\irowband0
\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr
\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\trowd \irow1\irowband1
\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr
\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Grey 1 (0x11, 0x11, 0x11), \'85, Extra Grey 5 (0x77, 0x77, 0x77),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow1\irowband1\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655
\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Red 1 (0x11,0,0), \'85, Extra Red 5 (0x77,0,0),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874
\trowd \irow2\irowband2\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Green 1 (0,0x11,0), \'85, Extra Green 5 (0,0x77,0),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874
\trowd \irow3\irowband3\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Blue 1 (0,0,0x11), \'85, Extra Blue 5 (0,0,0x77),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874
\trowd \irow4\irowband4\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Netscape Colour Cube colour 0, \'85, Netscape Colour Cube colour 215\cell 216\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow5\irowband5\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655
\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Blue 6 (0,0,0x88), \'85, Extra Blue 10 (0,0,0xee),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow6\irowband6\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655
\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Green 6 (0,0x88,0), \'85, Extra Green 10 (0,0xee,0),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow7\irowband7\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655
\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Red 6 (0x88,0,0), \'85, Extra Red 10 (0xee,0,0),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874
\trowd \irow8\irowband8\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Extra Grey 6 (0x88,0x88,0x88), \'85, Extra Grey 10 (0xee,0xee,0xee),\cell 5\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow9\irowband9\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655
\row }\trowd \irow10\irowband10\lastrow \ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil
\cellx7655\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Total\cell 256\cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow10\irowband10\lastrow
\ts11\trgaph107\trleft-107\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrs\brdrw15 \clbrdrr
\brdrnone \cltxlrtb\clftsWidth3\clwWidth6204\clshdrawnil \cellx6097\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1558\clshdrawnil \cellx7655\row }\pard
\ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 {\insrsid10634874
\par
\par }{\b\insrsid10634874 Mapping an RGB value that exists in the palette to its colour palette index
\par }{\insrsid10634874
\par With small palette sizes based on an algorithmic distribution such as the EColor16 and EColor256 palettes suggested above, it is possible to identify an RGB value as actually being in the palette. Identifying component values characteristic of entries in
the palette is very quick and of constant order with respect to palette size. An example of this would be looking for RGB entries that have components that are all multiples of 0x33, identifying it as a member of the Netscape Colour Cube.}{
\b\insrsid10634874
\par
\par Mapping an arbitrary RGB value to a colour palette index
\par }{\insrsid10634874
\par The use of a palette in a system where the user has the ability to request any 24 bit RGB value requires a palette mapping scheme. This matches the requested RGB to the nearest available one in the palette. One
way to achieve this is to use a scheme such as the Colour Manager on Apple computers [http://devworld.apple.com/ngs/lpp/adrpub/docs/dev/techsupport/insidemac/AdvancedColor/AdvancedColor-393.html].
\par
\par Create an inverse look-up table by generating a table of a
ll 9, 12 or 15 bit RGB values and calculate all the palette indexes for them. Then an RGB gets its components (R, G & B) truncated to 3, 4 or 5 bits and concatenated to form the table index and the matching palette index is used for that colour. 3 = poo
r
resolution (too poor), 4 = okay resolution (probably acceptable), 5 = good resolution (perhaps too much). 3 bits for each component (9 bit RGB values) needs an inverse look-up table of 512 bytes. 4 bits for each component (12 bit RGB values) needs a ta
ble of 4 Kbytes. 5 bits for each component (15 bit RGB values) needs a table of 32 Kbytes.
\par
\par E.g. for a 12 bit RGB inverse palette index lookup table
\par }\trowd \irow0\irowband0\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrs\brdrw15
\clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt
\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15
\cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 Blue\cell Green\cell Red\cell Palette index\cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow0\irowband0\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15
\trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone
\clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt
\brdrs\brdrw15 \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\trowd \irow1\irowband1\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15
\trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone
\clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127
\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0x0\cell 0x0\cell 0x0\cell I}
{\sub\insrsid10634874 0}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow1\irowband1\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb
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\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil
\cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 \'85\cell
\'85\cell \'85\cell I}{\sub\insrsid10634874 1}{\insrsid10634874 \'85 I}{\sub\insrsid10634874 14}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow2\irowband2
\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr
\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone
\clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0x0\cell 0x0\cell 0xf\cell I}{\sub\insrsid10634874 15}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874
\trowd \irow3\irowband3\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone
\clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401
\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0x0\cell 0x1\cell 0x0\cell I}{\sub\insrsid10634874 16}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {
\insrsid10634874 \trowd \irow4\irowband4\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt
\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15
\cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 \'85\cell \'85\cell \'85\cell I}{\sub\insrsid10634874 17}{\insrsid10634874 \'85 I}{\sub\insrsid10634874 254}{
\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow5\irowband5\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr
\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt
\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0x0\cell 0xf\cell 0xf\cell I}{
\sub\insrsid10634874 255}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow6\irowband6\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb
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\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil
\cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0x1\cell 0x0
\cell 0x0\cell I}{\sub\insrsid10634874 256}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow7\irowband7\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl
\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil
\cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone
\cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard
\ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 \'85\cell \'85\cell \'85\cell I}{\sub\insrsid10634874 257}{\insrsid10634874 \'85 I}{\sub\insrsid10634874 4094}{\insrsid10634874 \cell }\pard
\ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow8\irowband8\ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15
\trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb
\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone
\clbrdrl\brdrnone \clbrdrb\brdrnone \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\trowd \irow9\irowband9\lastrow \ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr
\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl
\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127
\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\pard \ql \li0\ri0\widctlpar\intbl\faauto\adjustright\rin0\lin0 {\insrsid10634874 0xf\cell 0xf\cell 0xf
\cell I}{\sub\insrsid10634874 4095}{\insrsid10634874 \cell }\pard \ql \li0\ri0\widctlpar\intbl\aspalpha\aspnum\faauto\adjustright\rin0\lin0 {\insrsid10634874 \trowd \irow9\irowband9\lastrow \ts11\trgaph107\trleft0\trbrdrt\brdrs\brdrw15 \trbrdrl
\brdrs\brdrw15 \trbrdrb\brdrs\brdrw15 \trbrdrr\brdrs\brdrw15 \trftsWidth1\trpaddl107\trpaddr107\trpaddfl3\trpaddfr3 \clvertalt\clbrdrt\brdrnone \clbrdrl\brdrs\brdrw15 \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil
\cellx709\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone \cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx1418\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrnone
\cltxlrtb\clftsWidth3\clwWidth709\clshdrawnil \cellx2127\clvertalt\clbrdrt\brdrnone \clbrdrl\brdrnone \clbrdrb\brdrs\brdrw15 \clbrdrr\brdrs\brdrw15 \cltxlrtb\clftsWidth3\clwWidth1274\clshdrawnil \cellx3401\row }\pard
\ql \li0\ri0\widctlpar\faauto\adjustright\rin0\lin0\itap0 {\insrsid10634874
\par In this case the 4096 palette indexes are not all unique and map onto the actual 256 colours in the palette. This technique may \'93hide\'94
colours that are close together (differ only in the least significant four bits of each component) but have exact matches in the palette. However, the lookup time is O(1), not O(n) where n is the size of the palette, and the resolving power is equal to
a
palette of 4096 colours. For exact matching of the user-defined RGB value UrUgUb the minimum value of Abs(Ur-Pr) + Abs(Ug-Pg) + Abs(Ub-Pb) would have to be calculated for all palette entries PrPgPb. It could be argued that the Abs() should be replaced
by squaring the differences. This would then give more weight to palette entries that are closer across the three RGB components rather than ones that differ by more but only in one component.
\par
\par E.g. User RGB = (250,250,250) (very light grey). Closest pale
tte entries are (255,255,255) (white) and (250,250,235) (very light yellow). The first scheme could not differentiate between white and light yellow, whereas the second would choose white, which would seem the more appropriate choice.
\par However, squaring values would be much more costly than taking their absolute values, making this choice most undesirable.
\par }{\b\insrsid10634874
\par Future EColor256 support}{\insrsid10634874
\par
\par A possible problem with a fixed-palette 256 colour mode is that there may be a requirement for a variable-palette scheme in th
e future. As most of the colour handling is internal this difference is only an issue where the details are exposed to the user. There are functions defined in BITGDI: CFbsDevice::PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) & CFbsDevice::Ge
tPalette() that could signify the presence of the \'93EPOC32 EColor256 default palette\'94 by saying that it is not modifiable and returning NULL from GetPalette(), and telling the truth when the \'93EPOC32 EColor256 variable palette\'94 is implemented.}{
\b\insrsid10634874
\par }{\insrsid10634874
\par }{\b\insrsid10634874 EIKON level colour support}{\insrsid10634874
\par
\par Colour usage in controls might be implemented in EIKON through a control enabling the selection of particular colours for individual controls. Perhaps a file could contain defaults for a particular platform, stored in ROM. Then if a user wa
nts to change the colour of a control the EIKON server would store the changed options. Resetting a control to its default colour would delete that entry from the EIKON array of changed options. Controls could then call an EIKON function, providing an e
n
um entry, requesting their default colour. The array would be scanned and if no entry was found the ROM file would be scanned for the default. The control itself could have black & white defaults built in for the worst case of not finding an entry for i
t in the ROM file. This would support any cases whereby the control had been added at a later stage or it didn\rquote t need colour support. The enum values can easily be extended in future versions to accommodate new controls.
\par
\par }{\b\insrsid10634874 Gamma correction}{\insrsid10634874
\par
\par Gamma correction is explained at http://www.cgsd.com/papers/gamma_intro.html. An interesting site for checking gamma correction and hardware & software colour accuracy is http://colorcom.com/~colorcom/comput.html. This site places dithered black & white
rectangles next to grey rectangles and asks the user to step back 6 feet and decide which pair looks uniform. This then gives an estimate of the gamma correction of the display used. Gamma correction won\rquote
t be addressed by this project as it is judged to b
e not important enough. Also this site http://www.halted.com/online/cybermax.htm suggests that gamma correction for an LCD screen is more complicated than for a CRT, using a transfer-function more complicated than the traditional L = V ^ g, where L is li
g
ht intensity, V is input voltage and g is the gamma value. Gamma correction for a CRT basically involves raising the input values to the power of -g, thus cancelling out the gamma characteristics of the display device. Gamma correction for an LCD would
appear to be rather more complicated\'85
\par
\par }{\b\insrsid10634874 Other platforms}{\insrsid10634874
\par
\par The web site http://members.aol.com/pdcchrisd/wce/wce20scrn.htm has some interesting screen shots, although they must have been taken as bitmaps from a PC emulation.
\par
\par }}