<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7654.12"> <TITLE>Who can explain the diff between Xserver-1.6.4 version and >1.7 version about the ExaGetPixmapAddress?</TITLE> </HEAD> <BODY>  <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">Hi</FONT><FONT SIZE=2 FACE="Arial">,</FONT> <FONT SIZE=2 FACE="Arial">all,</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us">        <FONT SIZE=2 FACE="Arial">About the</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT COLOR="#000000" SIZE=2 FACE="Courier New">exaGetPixmapOffset</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New"> function in exa.c, please see below,</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New">In Xserver 1.6.4</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New"> version</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New">, describe</FONT><FONT COLOR="#000000" SIZE=2 FACE="Courier New"> as:</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">static _X_INLINE void*</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">ExaGetPixmapAddress(PixmapPtr p)</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">{</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    ExaPixmapPriv(p);</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    if (pExaPixmap->offscreen</FONT><FONT SIZE=2 FACE="Arial"> && pExaPixmap->fb_ptr)</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us">        <FONT SIZE=2 FACE="Arial">return pExaPixmap->fb_ptr;</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    else</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us">        <FONT SIZE=2 FACE="Arial">return pExaPixmap->sys_ptr;</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">}</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">/**</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * the beginning of the given pixmap.</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> *</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * Note that drivers are free to, and</FONT> <FONT SIZE=2 FACE="Arial">often do, munge this offset as necessary</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * for handing to the hardware -- for example, translating it into a different</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * aperture.  This function may need to be extended in the future if we grow</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * support for having multiple card-accessible offscreen, such as an AGP memory</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * pool alongside the framebuffer pool.</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> */</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">unsigned long</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">exaGetPixmapOffset(PixmapPtr pPix)</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">{</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    ExaScreenPriv (pPix->drawable.pScreen);</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    return ((unsigned long)ExaGetPix</FONT><FONT SIZE=2 FACE="Arial">mapAddress(pPix) -</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us">        <FONT SIZE=2 FACE="Arial">    (unsigned long)pExaScr->info->memoryBase);</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">}</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New">In</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT COLOR="#000000" SIZE=2 FACE="Courier New">></FONT><FONT COLOR="#000000" SIZE=2 FACE="Courier New"></FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT COLOR="#000000" SIZE=2 FACE="Courier New">Xserver 1.</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New">7</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New"> version</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT COLOR="#000000" SIZE=2 FACE="Courier New">, describ</FONT><FONT COLOR="#000000" SIZE=2 FACE="Courier New">e</FONT><FONT COLOR="#000000" SIZE=2 FACE="Courier New"> as</FONT><FONT COLOR="#000000" SIZE=2 FACE="Courier New">:</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">/**</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * the beginning of the given pixmap.</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> *</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * Note that drivers are free to, and often do, munge this offset as necessary</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * for handing to the hardware -- for example, t</FONT><FONT SIZE=2 FACE="Arial">ranslating it into a different</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * aperture.  This function may need to be extended in the future if we grow</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * support for having multiple card-accessible offscreen, such as an AGP memory</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> * pool alongside the framebuffer pool.</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial"> */</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">unsigned long</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">exaGetPixm</FONT><FONT SIZE=2 FACE="Arial">apOffset(PixmapPtr pPix)</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">{</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    ExaScreenPriv (pPix->drawable.pScreen);</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    ExaPixmapPriv (pPix);</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">    return (CARD8 *)pExaPixmap->fb_ptr - pExaScr->info->memoryBase;</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">}</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> <BR> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">Who can explain the change? Why del</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">the</FONT> <FONT SIZE=2 FACE="Arial">the part of sys</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">_ptr</FONT> <FONT SIZE=2 FACE="Arial">in > 1.7 version?</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">Thanks,</FONT></SPAN></P> <P DIR=LTR><SPAN LANG="en-us"><FONT SIZE=2 FACE="Arial">Hunk Cui</FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P> </BODY> </HTML>