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    <div class="moz-cite-prefix">Thanks, it worked!<br>
      <br>
      Now I'm trying to solve the same problem on png output, <br>
      if a request is outside the extent it will return a trasparent
      png, and that is ok, <br>
      when I request a tile that is half-in and half-out the extent, the
      half-out part <br>
      should be transparent instead of white.<br>
      <br>
      Any suggestion on how to solve this?<br>
      <br>
      Daniele<br>
      <br>
      <br>
      <br>
      <br>
      On 27. 12. 12 12:03, thomas bonfort wrote:<br>
    </div>
    <blockquote
cite="mid:CAOM3y2gALgUYq9CQheQSDUwSC8zWLkTgB6Ub8ZDNhcStWCk7kg@mail.gmail.com"
      type="cite">
      <div dir="ltr">imageio_jpeg.c, around line 200: also extract alpha
        along with red,green,blue. if alpha=0, set pixptrs to 255
        instead of *r,*g,*b.
        <div><br>
        </div>
        <div>--</div>
        <div style="">thomas</div>
      </div>
      <div class="gmail_extra">
        <br>
        <br>
        <div class="gmail_quote">On Thu, Dec 27, 2012 at 11:36 AM,
          Daniele Debernardi <span dir="ltr"><<a
              moz-do-not-send="true" href="mailto:daniele@geosar.ch"
              target="_blank">daniele@geosar.ch</a>></span> wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000">
              <div>Hi, <br>
                I tried with your suggestion to use a mixed image format
                but with unsuccessful results.<br>
                For my case I just need to force that black background
                color to white, is there anyplace in<br>
                mapcache code where I can change it?<br>
                <br>
                Any suggestion on which part of the code I have to look
                would be enough.<br>
                <br>
                Thanks,<br>
                Daniele
                <div>
                  <div class="h5"><br>
                    <br>
                    On 19. 12. 12 12:47, thomas bonfort wrote:<br>
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              <div>
                <div class="h5">
                  <blockquote type="cite">Daniele,
                    <div>The background color isn't configurable,
                      although that could become a configurable option
                      with a bit of funding. Your other option might be
                      to use a "mixed" image format, which will use JPEG
                      compression for complete tiles, and png with a
                      transparent background for tiles that are
                      half-in/half-out.</div>
                    <div><br>
                    </div>
                    <div>regards,</div>
                    <div>thomas</div>
                    <div class="gmail_extra"><br>
                      <br>
                      <div class="gmail_quote">On Wed, Dec 19, 2012 at
                        12:26 PM, Daniele Debernardi <span dir="ltr"><<a
                            moz-do-not-send="true"
                            href="mailto:daniele@geosar.ch"
                            target="_blank">daniele@geosar.ch</a>></span>
                        wrote:<br>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">
                          <div bgcolor="#FFFFFF" text="#000000"> Hi,<br>
                            <span
style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:start;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:normal;text-transform:none;font-size:15px;white-space:normal;font-family:Calibri;word-spacing:0px">there

                              is a possibility to change the background
                              color of the area outside of the extent of
                              the cache<br>
                              when the tile is merged toghether?<br>
                              <br>
                              example:<br>
                              when i request a tile with an extent that
                              is half outsite the map extent and half
                              inside, mapcache generates<br>
                              a tile with the half outsite of the map
                              with black background and i would like to
                              change it to white.<br>
                              <br>
                              Thanks in advance<br>
                              <br>
                            </span> </div>
                          <br>
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                          <br>
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