imagemagick: adds ptest for imagemagick

The logic used is :
- We check if the required tools are present or not
- We used magick to create an raw RGB file
- The created RGB is then converted to PNG using convert
- We re-gerenate RGB from PNG and compare the original and re-generated RGB
- Enabled the ptest in ptest-packagelists-meta-oe.inc as
  suggested by Gyorgy Sarvari and incorporated logging suggestion
- This was done as standard imagemagick test like drawtest requires manual
  internetion to verify the file

Signed-off-by: AshishKumar Mishra <ashishkumar.mishra@bmwtechworks.in>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/conf/include/ptest-packagelists-meta-oe.inc

@@ -16,6 +16,7 @@ PTESTS_FAST_META_OE = "\
     function2 \
     fwupd \
     gcab \
+    imagemagick \
     jemalloc \
     jq \
     leveldb \

meta-oe/recipes-support/imagemagick/imagemagick/imagemagick-ptest.sh

@@ -0,0 +1,132 @@
+#!/bin/sh
+#
+# ImageMagick ptest:
+# We ceate an BASERGB file for our usage using "magick"
+# We convert this RGB file to BASEPNG
+# Using BASEPNG we recreate RGB named REGENERATEDRGB
+#
+# BASERGB to BASEPNG to REGENERATEDRGB
+# - Then compare  BASERGB with REGENERATEDRGB
+#
+# 0) The convert command is deprecated in IMv7
+#    used "magick" instead of "convert"
+# 1) We are checking if the binaries are present in RFS or not
+# 2) We Created an RBG of size : WIDTH x HEIGHT pixels
+# 3) Return value is captured after every major actio to capture the status
+# 4) cmp -s is used to compare binary byte by byte data and
+#    capture only exit status
+# 5) Important parametsrs used are :
+#    -depth                     : How many bits for each colour pixel
+#    -alpha off  		: Don't consider transparency
+#    -define png:color-type=2   : Make PNG work with truecolour RGB
+#    -strip 			: Remove all non-pixel metadata og PNG
+#                                 so file is reproducible
+#    -set gamma 1.0             : No PNG brightness correction
+#     gradient:red-blue         : Data moves liberly from RED to Blue vertically
+
+
+WIDTH=16
+HEIGHT=16
+BASERGB=base.rgb
+BASEPNG=base.png
+REGENERATEDRGB=roundtrip.rgb
+
+echo "[DEBUG] Starting ImageMagick Ptest with ${WIDTH}x${HEIGHT} pixels "
+
+# Verify required binaries
+for bin in magick cmp wc rm; do
+    if [ -z "$(command -v "$bin" 2>/dev/null)" ]; then
+        echo "[ERROR] Required binary '$bin' not found $PATH"
+        exit 127
+    fi
+done
+
+
+# Generate raw RGB
+magick -size ${WIDTH}x${HEIGHT} gradient:red-blue \
+    -depth 8 -type TrueColor \
+    -alpha off -define png:color-type=2 \
+    -strip -set gamma 1.0 \
+    rgb:${BASERGB}
+
+returnvalue=$?
+if [ "$returnvalue" -ne 0 ]; then
+    echo "[FAIL] Failed to generate RGB pattern "
+    exit 1
+else
+    echo "[DEBUG] ${BASERGB} generated from gradient"
+fi
+
+
+# Convert raw RGB to PNG
+magick -depth 8 -size ${WIDTH}x${HEIGHT} rgb:${BASERGB} \
+    -type TrueColor -alpha off \
+    -define png:color-type=2 -strip -set gamma 1.0 \
+    ${BASEPNG}
+
+returnvalue=$?
+if [ $returnvalue -ne 0 ]; then
+    echo "[FAIL] Failed to convert RGB to PNG"
+    rm -f ${BASERGB}
+    exit 1
+else
+    echo "[DEBUG] ${BASEPNG} generated from ${BASERGB}"
+fi
+
+
+
+# Regenerate raw RGB from PNG
+magick ${BASEPNG} \
+    -size ${WIDTH}x${HEIGHT} -depth 8 -type TrueColor \
+    -alpha off -define png:color-type=2 \
+    -strip -set gamma 1.0 \
+    rgb:${REGENERATEDRGB}
+
+returnvalue=$?
+if [ $returnvalue -ne 0 ]; then
+    echo "[FAIL] Failed to regenerate RGB from PNG"
+    rm -f ${BASERGB} ${BASEPNG}
+    exit 1
+else
+    echo "[DEBUG] ${REGENERATEDRGB} generated from ${BASEPNG}"
+fi
+
+
+
+# Compare original and recreated RGB
+if cmp -s ${BASERGB} ${REGENERATEDRGB}; then
+    echo "[PASS] RGB data identical after PNG round-trip"
+    RESULT=0
+else
+    echo "[FAIL] RGB mismatch detected, printing their size "
+    echo "[INFO] Base RGB size: $(wc -c < ${BASERGB}) bytes"
+    echo "[INFO] Round-trip RGB size: $(wc -c < ${REGENERATEDRGB}) bytes"
+    RESULT=1
+fi
+
+
+
+# Checking the identify tool from imagemagick to get the PNG metadata
+# True is added in end to ensure that test script doesnt fail even if
+# identify fails for any reason
+echo "[DEBUG] PNG file info:"
+identify -verbose ${BASEPNG} | grep -E "Depth|Type|Colorspace" || true
+
+
+
+# Cleanup of files create by test code
+echo "[DEBUG] Cleaning up temporary files"
+rm -f ${BASERGB} ${BASEPNG} ${REGENERATEDRGB}
+returnvalue=$?
+echo "[DEBUG] Cleanup exit=$returnvalue"
+
+
+# Logging the final result
+if [ ${RESULT} -eq 0 ]; then
+    echo "[DEBUG]: imagemagick-ptest.sh sucessfull "
+else
+    echo "[DEBUG]: imagemagick-ptest.sh failed "
+fi
+
+
+exit ${RESULT}

meta-oe/recipes-support/imagemagick/imagemagick/run-ptest

@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# run-ptest — ImageMagick ptest harness
+# POSIX-safe and BusyBox compatible
+
+PTDIR=$(dirname "$0")
+TESTDIR="$PTDIR"
+PASSCOUNT=0
+FAILCOUNT=0
+TOTAL=0
+
+echo "======================================="
+echo "ImageMagick ptest: Runtime Validation"
+echo "======================================="
+
+for t in "$TESTDIR"/*.sh; do
+    [ -x "$t" ] || chmod +x "$t"
+    TOTAL=$((TOTAL + 1))
+    echo
+    echo "[DEBUG] Launching test script $t"
+
+    if sh "$t" 2>&1; then
+        echo "PASS: $(basename "$t")"
+        PASSCOUNT=$((PASSCOUNT + 1))
+    else
+        rc=$?
+        if [ "$rc" -eq 77 ]; then
+            echo "SKIP: $(basename "$t")"
+        else
+            echo "FAIL: $(basename "$t")"
+            FAILCOUNT=$((FAILCOUNT + 1))
+        fi
+    fi
+
+done
+
+echo
+echo "======================================="
+echo "[SUMMARY] Total: $TOTAL | PASS: $PASSCOUNT | FAIL: $FAILCOUNT"
+echo "======================================="
+echo
+[ "$FAILCOUNT" -eq 0 ]
+

meta-oe/recipes-support/imagemagick/imagemagick_7.1.2-8.bb

@@ -12,11 +12,15 @@ DEPENDS = "lcms bzip2 jpeg libpng tiff zlib fftw freetype libtool"
 BASE_PV = "${@d.getVar('PV').split('-')[0]}"
 UPSTREAM_CHECK_GITTAGREGEX = "(?P<pver>([0-9][\.|_|-]?)+)"
 
-SRC_URI = "git://github.com/ImageMagick/ImageMagick.git;branch=main;protocol=https;tag=${PV}"
+SRC_URI = "git://github.com/ImageMagick/ImageMagick.git;branch=main;protocol=https;tag=${PV} \
+           file://run-ptest \
+           file://imagemagick-ptest.sh \
+"
+
 SRCREV = "a3b13d143fd7dea44cd71d31aa02f411b597688f"
 
 
-inherit autotools pkgconfig update-alternatives
+inherit autotools pkgconfig update-alternatives ptest
 export ac_cv_sys_file_offset_bits = "64"
 
 EXTRA_OECONF = "--program-prefix= --program-suffix=.im7 --without-perl --enable-largefile"
@@ -55,6 +59,13 @@ do_install:append:class-target() {
     fi
 }
 
+do_install_ptest() {
+    install -d ${D}${PTEST_PATH}
+    install -m 0755 ${UNPACKDIR}/run-ptest ${D}${PTEST_PATH}/
+    install -m 0755 ${UNPACKDIR}/imagemagick-ptest.sh ${D}${PTEST_PATH}/
+}
+
+
 FILES:${PN} += "${libdir}/ImageMagick-${BASE_PV}/config-Q16* \
                 ${datadir}/ImageMagick-7"