IRC log for #htc-linux on 20071020

01:27.54paulproteusHey all.  I'm using a Magician and successfully running an OpenMoko build.
01:28.20paulproteusWhat's the right way to get started building my own rootfs?
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08:07.51wildhi all
08:07.58wildcr2 are you there?
08:11.55wildi post my problem.... i appreciate if someone help me. With SD 64M or 1GB i have this problem in boot time (angstrom gpe and opie2): "mmcblk0: (4)asic3_mmc Spurious Data IRQ unknown partition table......" so kernel panic
08:12.03wildanyone can help me?
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10:22.04tsdogscr2: around?
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10:23.22tsdogsHow do I create a raster with multiple bands?
11:16.56cr2hi tsdogs
11:17.55cr2with 24bit RGB you already have 3 bands
11:19.23tsdogscr2: hi, ok but I start from gif so I only have 1 band, but now I know what the bands are for :)
11:20.32tsdogsI've been able to build the raster, though it takes forever and stresses my cpu/swap a lot to create a common palette for 10 images (with 100 memory is over :(
11:29.09cr2gdal_translate converts paletted into 3band
11:29.34cr2because for the warping you can't interpolate by palette entries.
11:29.59tsdogscr2: but I have a 1 band geotiff
11:30.29cr2and since the libtiff is not good enough (don't know why) to write compressed tiles at runtime, you must write uncompressed, and compress later.
11:31.15cr2tsdogs: i've found a 15000x15000 google image in ozf2 format
11:31.51cr2somebody has stitched it together :)
11:31.59tsdogscr2: I have Size is 10535x10504x1 Pixel Size = (1.190000,-1.190000)
11:32.43cr2ok, so you have paletted geotiff now. with mercator projection, and wgs84 datum.
11:33.02tsdogsyes, palette ain't perfect but it's usable for tests
11:33.03cr2look at 'tiffinfo' output
11:33.07cr2ok.
11:33.13cr2you have 128x128 tiles ?
11:33.24cr2and the overviews.
11:33.31cr2binary overviews.
11:34.52tsdogscr2: http://www.pastebin.ca/743365
11:35.03tsdogsyes
11:36.43cr2ok, that looks good.
11:37.08tsdogsI'm also able to display it with gdal (on qt)
11:37.33cr2great.
11:37.38tsdogsNow I need to implement the lon/lat to mercator translation and simply draw it on the screen.
11:37.58cr2but since you have 1.2m/pix how do you control the zoom level.
11:38.01tsdogswith roadmap I mean.
11:38.39cr2i've already forgot the maths behind zoom roadmap's numbers
11:38.52cr2you can covert to mercator at runtime
11:39.05cr2though it's an enormous cpu waste ;)
11:39.09tsdogs:) that should not be important right now, I can draw with actual zoom level
11:39.13cr2but it's easier for testing.
11:39.56cr2you can force the zoom level you need.
11:40.10cr2by just setting it to the needed values.
11:40.10tsdogsI was looking for the formula to translate from lon/lat to merc_x, merc_y but I think it's faster to ask you again :)
11:40.30cr2lon is easy, it's just scaling.
11:40.42cr2looking for a link
11:40.53tsdogscr2: should I use proj ?
11:41.11tsdogsit was something with cos and sin afair
11:44.09cr2no, it's log and tan
11:44.17cr2for the latitude.
11:44.33tsdogsok close enough :) cosine was used for the actual zoom level.
11:45.33tsdogsmercator is long/log(tan(pi/4+lat))
11:45.51tsdogshmm: log(tan(pi/4+lat))
11:47.06cr2yes, but i'm searching for the earth radius used for scaling.
11:47.23cr2it's R*log(tan(pi/4+lat))
11:47.41cr2to get it in meters.
11:48.03cr2http://proj.maptools.org/faq.html#sphere_as_wgs84
11:48.17cr2R=6378137
11:48.19tsdogscr2:  I actually was looking for long/lat -> merc_x/merc_y
11:48.39cr2merc_y=6378137*log(tan(pi/4+lat))
11:48.44tsdogsin pixels (but meters are ok too as I have the meter to pixel)
11:48.50tsdogsok
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11:50.06cr2merc_x=6378137*pi/180*lon
11:51.05tsdogsperfect
11:52.12tsdogsthx
11:53.25cr2lat is of course pi/180*lat
11:53.46cr2merc_y=6378137*log(tan(pi/4+pi/180*lat))
11:54.01tsdogsho ok,
11:54.57cr2btw, do you know how to do SetPixel for the windows device-dependent bitmap ?
11:55.12cr2created with CreateCompatibleBitmap.
11:57.27tsdogshmm, not sure, but I have some docs here around.
11:57.55tsdogslooking
11:58.16cr2it's a very similar problem :)
11:59.17tsdogscr2: what do you mean?
11:59.53cr2"Specifies the x-coordinate, in logical units, of the point to be set."
12:00.10tsdogsok I saw it.
12:00.32cr2the trick is to get the "logical units" right.
12:01.00cr2probably i need to call GetDeviceCaps
12:01.34tsdogsyes, and see the resolution (ex. the printer has 600dpi 1200dpi and so on)
12:01.40cr2ok, so i need to dig into the zoom calculation internals.
12:01.55cr2on the screen it's a bit lower :)
12:02.53tsdogscr2: there is also a getbitmapdimensionex
12:03.20cr2ok, since you'll use the wgs84 based geotiff, don't be surprised if something will be a bit shifted.
12:03.25cr2ok, thanks.
12:04.06tsdogsok
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14:18.35cr2lol
14:18.41cr2err:bitmap:X11DRV_DIB_SetImageBits Out of memory!
14:18.59BabelOhi cr2 , it is a big big bit ;)
14:19.16cr2hi BabelO
14:19.46cr2it's just a great code
14:22.06BabelOcr2: i see message from yesturday evening, iwas at world rugby cup ;)
14:23.20cr2ok. but it's not bad to have some stable installation image anyway :)
14:33.37BabelOcr2: image at htcpxa are stable ;), if there is no zImage , maybe because i copy it to /boot in image itself
14:40.09BabelOcr2: and pcmcia tools are now in for qtopia
15:06.46zychowhat about linux on hermes? anything new?
15:19.48cr2zycho: the real progress will happen only after the ATI SD is done.
15:20.13cr2zycho: i'm working on the w2284 which is very close to w2282
15:20.55zychocool
15:21.00cr2but if i'll stay the only person working in this area, it'll take some time ;)
15:21.38cr2and i'm mainly interested in the clock part and suspend/resume
15:21.58zychohm, i think i can not help you :/
15:22.15cr2still, i've identified the I2C register block, and 2 others. probably related to the I2S sound.
15:22.31cr2zycho: in what area can you help ? :)
15:22.52zychohm, i think i can NOT help you :/
15:22.58cr2ok.
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15:37.51corvushi all
15:38.33corvusBabelo, cr2, kevin2, someone have seen goxboxlive?
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19:07.42paulproteusMornin', all.
19:09.42cr221:07 here
19:10.07paulproteusEr, right.
19:27.48paulproteusI got the screen of my Universal the *slightest* bit wet with rain, and now it doesn't seem to turn on.
19:28.07paulproteusWhen I take out the battery and plug it into USB power, I do get a red light on the front, which I suppose is probably a good sign.
19:34.46cr2the LCD does not turn on ?
19:35.06cr2what about USB ?
19:35.16cr2can you force it to boot in to the SPL ?
19:36.05paulproteuscr2, "what about USB" - meaning, does the PC it's attached to detect it over USB?  Let me see.
19:36.37paulproteusBTW, I mis-spoke; it's a Magician not a Universal.
19:36.56cr2ok.
19:39.03paulproteusNo, lsusb doesn't show it.
19:39.20paulproteusEven with the battery in I still get a red light at the top (where there is usually an orange light during charging).
19:42.49paulproteusHmm, that red light just turned off.
19:44.17cr2is your battery empty ?
19:44.54cr2red light usually means an empty battery.
19:46.22paulproteusIt wasn't empty last night but it could have discharged since maybe.
19:46.34paulproteusI have plugged it into USB.  The red light is on again (I haven't touched it since 10m ago).
19:46.48paulproteusI did leave it plugged into USB last night, for what it's worth, and it's still in this state.
19:48.44cr2do you have an AC charger ?
19:51.08paulproteusYes - I guess I'll try that.
20:03.09paulproteusFrom the wall it seems to not even display the red light.
20:04.07cr2strange
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22:03.22pH5_paulproteus: did you try the hard-reset? (keep camera + power buttons pressed while pressing the reset button, and keep them pressed for a while)
22:09.06paulproteuspH5_, Nope!
22:09.14paulproteusEr, where's the reset button?
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22:10.36paulproteusHey, it booted!
22:10.40paulproteusNo reset button required.
22:10.42paulproteusThank goodness.
22:10.54paulproteusI just left the battery out for 10m or so.
22:11.18paulproteusOkay, so is there a way to not have the annoying Windows re-install process every time the phone loses power?
22:16.00pH5_paulproteus: the reset button is on the bottom, right of the headset plug
22:16.19pH5_unfortunately, with wm2003 there is no way to avoid the re-install on every reboot
22:17.20paulproteusYes, that'd be nice. (-:
22:17.42paulproteuspH5_, I think I'm running your binary build on my Magician.
22:18.15paulproteusIf I want to start actually recompiling things, what's the right way to go about that?  I'm totally new to HTC Linux/Angstrom, but I did make an OpenMoko build using their system a few months back.
22:18.54paulproteusJust look up the Angstrom docs, or should I read something else too?
22:18.58pH5_paulproteus: nice, then you'll see that there is still much work to do :)
22:19.10pH5_paulproteus: building angstrom and openmoko is exactly the same
22:19.20paulproteusEr, I mean an OM build for Neo1973.
22:19.27paulproteusSo I haven't built any Angstrom anything.
22:19.37pH5_paulproteus: yup, but it uses the openembedded build system
22:19.41paulproteuspH5_, Yes, I agree, and I very much want to be in the future where it's done, and will help out where I can.
22:19.48pH5_you can just change DISTRO="openmoko" to DISTRO="angstrom" in your local.conf
22:19.51paulproteusI used the MokoMakefile, so it sort of magically set up everything.
22:20.03pH5_and change MACHINE="fic-gta01" to MACHINE="magician", and that's it.
22:20.28pH5_paulproteus: you should read the openmoko documentation and look inside the mokomakefile to understand what it actually is doing.
22:20.44paulproteuspH5_, Okay, wow, that sounds shockingly easy. (-:
22:20.48paulproteusI guess I'll do that!
22:21.15pH5_I'm regularly building for both magician(angstrom) and the neo(openmoko), there is really no difference whatsoever.
22:22.13pH5_actually, I meant "you should read the openembedded documentation"
22:22.47paulproteus*Oh*, that makes way more sense.
22:22.55paulproteusURL for something in particular?
22:23.53pH5_www.openembedded.org
22:24.01pH5_the "getting started" link, and http://www.openembedded.org/openembedded-user-manual
22:24.08pH5_for reference
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