Load BMP failed

[qtbui159]

I have a 32bit c program use this code.

VipsImage* in1 = vips_image_new_from_file("a1.bmp", nullptr); //a1.bmp is 181MB
VipsImage* in2 = vips_image_new_from_file("a2.bmp", nullptr); //a2.bmp is 350MB

in2 is NULL, so i call vips_error_buffer.I got error message like

magick2vips: libMagick error: MemoryAllocationFailed "a2.bmp" @ error/bmp.c/ReadBMPImage/1001
magick2vips: unable to read file "a2.bmp"

How can i fix this error?

[jcupitt]

Hi @qtbui159, can you share the file that's failing to load?

[jcupitt]

I made a windows VM and it seems to work for me without any modification:

jcupi@DESKTOP-HGI6HBR MINGW64 /f
$ unzip -qq Downloads/vips-dev-w64-all-8.15.0.zip

jcupi@DESKTOP-HGI6HBR MINGW64 /f
$ cd vips-dev-8.15/

jcupi@DESKTOP-HGI6HBR MINGW64 /f/vips-dev-8.15
$ ./bin/vipsheader.exe /f/Pictures/a1.bmp
F:/Pictures/a1.bmp: 11928x7984 uchar, 3 bands, srgb, magickload

jcupi@DESKTOP-HGI6HBR MINGW64 /f/vips-dev-8.15
$ ./bin/vips.exe magickload /f/Pictures/a1.bmp x.jpg

jcupi@DESKTOP-HGI6HBR MINGW64 /f/vips-dev-8.15
$ ./bin/vips.exe copy /f/Pictures/a1.bmp x.jpg

jcupi@DESKTOP-HGI6HBR MINGW64 /f/vips-dev-8.15
$

Which zip did you download?

[jcupitt]

Ahhhh! I just noticed you wrote:

I have a 32bit c program use this code.

I would not use the 32-bit version unless you have a very specific need. Use the 64-bit library.

[qtbui159]

host operate system is 32bit windows. So i can only use 32-bit version. I download zip that name is vips-dev-w32-all-8.14.5.zip

[jcupitt]

Imagemagick needs over 2gb of RAM to load your BMP, so it's just not possible on a 32-bit machine.

You need to either use a 64-bit machine, use smaller BMP images, or use another file format. PNG would be fine, for example.

[qtbui159]

thx.got it.

[bkocev]

Hi,

is there way to load bmp images using the web distribution of libvips? I.e., without using the "*all" distribution, which depends on ImageMagic?

Thanks,
Bojan.

[jcupitt]

Sorry, no, libvips uses imagemagick to load BMP.