Add png2c, embedder of images in PNG format

utils/png2c.py

@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# DISTRHO Plugin Framework (DPF)
+# Copyright (C) 2012-2019 Filipe Coelho <falktx@falktx.com>
+#
+# Permission to use, copy, modify, and/or distribute this software for any purpose with
+# or without fee is hereby granted, provided that the above copyright notice and this
+# permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+# TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+# NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+import os, sys
+
+# -----------------------------------------------------
+
+def png2c(namespace, filenames):
+
+    fdH = open("%s.hpp" % namespace, "w")
+    fdH.write("/* (Auto-generated binary data file). */\n")
+    fdH.write("\n")
+    fdH.write("#ifndef BINARY_%s_HPP\n" % namespace.upper())
+    fdH.write("#define BINARY_%s_HPP\n" % namespace.upper())
+    fdH.write("\n")
+    fdH.write("namespace %s\n" % namespace)
+    fdH.write("{\n")
+
+    fdC = open("%s.cpp" % namespace, "w")
+    fdC.write("/* (Auto-generated binary data file). */\n")
+    fdC.write("\n")
+    fdC.write("#include \"%s.hpp\"\n" % namespace)
+    fdC.write("\n")
+
+    tempIndex = 1
+
+    for filename in filenames:
+        shortFilename = filename.rsplit(os.sep, 1)[-1].split(".", 1)[0]
+        shortFilename = shortFilename.replace("-", "_")
+
+        pngData = open(filename, 'rb').read()
+
+        print("Generating data for \"%s\"" % (filename))
+
+        fdH.write("    extern const char* %sData;\n" % shortFilename)
+        fdH.write("    const unsigned int %sDataSize = %i;\n" % (shortFilename, len(pngData)))
+
+        if tempIndex != len(filenames):
+            fdH.write("\n")
+
+        fdC.write("static const unsigned char temp_%s_%i[] = {\n" % (shortFilename, tempIndex))
+
+        curColumn = 1
+        fdC.write(" ")
+
+        for data in pngData:
+            if curColumn == 0:
+                fdC.write(" ")
+
+            fdC.write(" %3u," % data)
+
+            if curColumn > 20:
+                fdC.write("\n ")
+                curColumn = 1
+            else:
+                curColumn += 1
+
+        fdC.write("};\n")
+        fdC.write("const char* %s::%sData = (const char*)temp_%s_%i;\n" % (namespace, shortFilename, shortFilename, tempIndex))
+
+        if tempIndex != len(filenames):
+            fdC.write("\n")
+
+        tempIndex += 1
+
+    fdH.write("}\n")
+    fdH.write("\n")
+    fdH.write("#endif // BINARY_%s_HPP\n" % namespace.upper())
+    fdH.write("\n")
+    fdH.close()
+
+    fdC.write("\n")
+    fdC.close()
+
+# -----------------------------------------------------
+
+if __name__ == '__main__':
+    if len(sys.argv) != 3:
+        print("Usage: %s <namespace> <artwork-folder>" % sys.argv[0])
+        quit()
+
+    namespace = sys.argv[1].replace("-","_")
+    artFolder = sys.argv[2]
+
+    if not os.path.exists(artFolder):
+        print("Folder '%s' does not exist" % artFolder)
+        quit()
+
+    # find png files
+    pngFiles = []
+
+    for root, dirs, files in os.walk(artFolder):
+        for name in [name for name in files if name.lower().endswith(".png")]:
+            pngFiles.append(os.path.join(root, name))
+
+    pngFiles.sort()
+
+    # create code now
+    png2c(namespace, pngFiles)