From: Antonio Ospite Date: Sun, 6 May 2012 21:24:40 +0000 (+0200) Subject: picoproj: add a note about image dimensions and native resolution X-Git-Tag: v0.1.3~38 X-Git-Url: https://git.ao2.it/libam7xxx.git/commitdiff_plain/a90e2ac0541712553638996d2247046fe5b35001?hp=-c picoproj: add a note about image dimensions and native resolution Also print a warning when the user supplies a big image, picoproj does not perform any rescale so the device may just display a wrong picture or even hang. --- a90e2ac0541712553638996d2247046fe5b35001 diff --git a/doc/man/picoproj.1.txt b/doc/man/picoproj.1.txt index c60fe16..ce56f0e 100644 --- a/doc/man/picoproj.1.txt +++ b/doc/man/picoproj.1.txt @@ -15,7 +15,9 @@ SYNOPSIS DESCRIPTION ----------- -picoproj(1) is a minimal example to show how to use libam7xxx to display a static image. +picoproj(1) is a minimal example to show how to use libam7xxx to display +a static image; it will not perform any image rescaling or conversion, images +larger than the device native resolution can be wrongly displayed. OPTIONS diff --git a/examples/picoproj.c b/examples/picoproj.c index 105169c..2c1b257 100644 --- a/examples/picoproj.c +++ b/examples/picoproj.c @@ -209,6 +209,10 @@ int main(int argc, char *argv[]) goto cleanup; } + if ((unsigned int)width > device_info.native_width || + (unsigned int)height > device_info.native_height) + fprintf(stderr, "WARNING: image not fitting the native resolution, it may be displayed wrongly!\n"); + ret = am7xxx_send_image(dev, format, width, height, image, size); if (ret < 0) { perror("am7xxx_send_image");