Perhaps something to be included in the patch set from linux4sam,
I noticed the angstrom image was really ugly, when displayed by psplash.
As the lcd board is connected BGR, the weight and order of the colors in the framebuffer code has to be changed.
I've added a simple define to the code, so everything is converted and displayed properly.
My current bitbake script is:
Code:
DESCRIPTION = "Userspace framebuffer boot logo based on usplash."
SECTION = "base"
LICENSE = "GPL"
PV = "0.0+svn${SRCDATE}"
PR = "r4"
# You can create your own pslash-hand-img.h by doing
# ./make-image-header.sh <file>.png HAND
# and rename the resulting .h to pslash-hand-img.h
SRC_URI = "svn://svn.o-hand.com/repos/misc/trunk;module=psplash;proto=http \
file://psplash-hand-img.h \
file://psplash-init"
S = "${WORKDIR}/psplash"
SRC_URI_append_angstrom = " file://psplash-fb-bgr555.patch;patch=1 "
inherit autotools pkgconfig update-rc.d
FILES_${PN} += "/mnt/.psplash"
do_configure_append() {
cp ${WORKDIR}/psplash-hand-img.h ${S}/
}
do_install_prepend() {
install -d ${D}/mnt/.psplash/
install -d ${D}${sysconfdir}/init.d/
install -m 0755 ${WORKDIR}/psplash-init ${D}${sysconfdir}/init.d/psplash
}
INITSCRIPT_NAME = "psplash"
INITSCRIPT_PARAMS = "start 0 S . stop 20 0 1 6 ."
and the patch:
Code:
--- psplash-org/psplash-fb.c 2007-03-30 13:25:43.000000000 +0200
+++ psplash/psplash-fb.c 2008-06-29 14:59:17.000000000 +0200
@@ -17,4 +17,7 @@
#include "psplash.h"
+#define PIXEL_BGR555(r,g,b) ( (((b)&0xF8) << 7) | \
+ (((g)&0xF8) << 2) | \
+ (((r)&0xF8) >> 3) )
void
psplash_fb_destroy (PSplashFB *fb)
@@ -186,6 +189,8 @@
break;
case 16:
- *(volatile uint16 *) (fb->data + off)
- = ((red >> 3) << 11) | ((green >> 2) << 5) | (blue >> 3);
+// *(volatile uint16 *) (fb->data + off)
+// = ((red >> 3) << 11) | ((green >> 2) << 5) | (blue >> 3);
+ *(volatile uint16 *) (fb->data + off)
+ = PIXEL_BGR555(red, green, blue);
break;
default:
edit: fixed rgb order in macro call.
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