#175496 - Scribe - Sat Dec 04, 2010 5:00 pm
Hi guys,
I've just written a universal image converter to uncompressed xBGR 16bit for use with the DS.
I'm using libfat to load in these image files but am finding the use of fread is returning EOF too early. In my example the filesize should be 98312 bytes but it's falling 6156 bytes short.
I've confirmed that the image file size after conversion is correct and that the size data being fed in is also correct.
This leads me to assume the issue is with either libfat or the virtual fat system script I'm using to run this code on an emulator (I don't currently have a DS available).
The build steps for the virtual filesystem are thus:
build.bat =
Any ideas what could be causing this issue guys?
Many thanks
I've just written a universal image converter to uncompressed xBGR 16bit for use with the DS.
I'm using libfat to load in these image files but am finding the use of fread is returning EOF too early. In my example the filesize should be 98312 bytes but it's falling 6156 bytes short.
I've confirmed that the image file size after conversion is correct and that the size data being fed in is also correct.
This leads me to assume the issue is with either libfat or the virtual fat system script I'm using to run this code on an emulator (I don't currently have a DS available).
The build steps for the virtual filesystem are thus:
| Code: |
|
cd fcsrimage padbin.exe 512 ../NDS_Template.nds CALL build.bat image.img ..\Filesystem copy /b ..\NDS_Template.nds + image.img ..\NDS_Template.ds.gba dlditool.exe fcsr.dldi ..\NDS_Template.ds.gba cd .. |
build.bat =
| Code: |
|
@echo off REM REM based on davr http://blog.davr.org/ linux code and shell script REM by Troy(GPF) http://gpf.dcemu.co.uk REM echo Builds a FAT disk image from a given directory. IF "%1" == "" goto ERROR IF "%2" == "" goto ERROR for /f "tokens=3,4*" %%a in ( 'dir /w /s /-C %2 ^| tail -n 2 ^| head -n 1') do @set info=%%a set /A size="%info%+64" echo %size% if /I %size% LSS 10000 ( set /A size="10000" ) echo Creating image mkdosfs.exe %1 %size% add_to_disk_image.exe %1 %2 rem 'bless' the image so it is recognized by FCSR driver, and sets up SRAM overlay echo Blessing image bless.exe %1 echo "FAT12 image built as %1 from %2" goto :end :ERROR echo usage: build.bat name.img dirname goto :end :tobig echo directory size to large , remove some files and try again goto :end :end |
Any ideas what could be causing this issue guys?
Many thanks