init

app/images/icons/Makefile

@@ -0,0 +1,42 @@
+BROWSER_SIZES := 16 24 32 48 64
+#ANDROID_SIZES := 72 96 144 192
+# FIXME: The ICO is limited to 8 icons due to a Chrome bug:
+#        https://bugs.chromium.org/p/chromium/issues/detail?id=1381393
+ANDROID_SIZES := 96 144 192
+WEB_ICON_SIZES := $(BROWSER_SIZES) $(ANDROID_SIZES)
+
+#IOS_1X_SIZES := 20 29 40 76 # No such devices exist anymore
+IOS_2X_SIZES := 40 58 80 120 152 167
+IOS_3X_SIZES := 60 87 120 180
+ALL_IOS_SIZES := $(IOS_1X_SIZES) $(IOS_2X_SIZES) $(IOS_3X_SIZES)
+
+ALL_ICONS := \
+	$(ALL_IOS_SIZES:%=novnc-ios-%.png) \
+	novnc.ico
+
+all: $(ALL_ICONS)
+
+# Our testing shows that the ICO file need to be sorted in largest to
+# smallest to get the apporpriate behviour
+WEB_ICON_SIZES_REVERSE := $(shell echo $(WEB_ICON_SIZES) | tr ' ' '\n' | sort -nr | tr '\n' ' ')
+WEB_BASE_ICONS := $(WEB_ICON_SIZES_REVERSE:%=novnc-%.png)
+.INTERMEDIATE: $(WEB_BASE_ICONS)
+
+novnc.ico: $(WEB_BASE_ICONS)
+	convert $(WEB_BASE_ICONS) "$@"
+
+# General conversion
+novnc-%.png: novnc-icon.svg
+	convert -depth 8 -background transparent \
+		-size $*x$* "$(lastword $^)" "$@"
+
+# iOS icons use their own SVG
+novnc-ios-%.png: novnc-ios-icon.svg
+	convert -depth 8 -background transparent \
+		-size $*x$* "$(lastword $^)" "$@"
+
+# The smallest sizes are generated using a different SVG
+novnc-16.png novnc-24.png novnc-32.png: novnc-icon-sm.svg
+
+clean:
+	rm -f *.png