From 068b64ca763f1729078f522916a04190ca5d6635 Mon Sep 17 00:00:00 2001
From: "FeRD (Frank Dana)" <[email protected]>
Date: Mon, 3 Dec 2018 11:09:03 -0500
Subject: [PATCH] guicast/bccmdl.py: Use python3

This change updates the print statements in guicast/bccmdl.py
to use Python 3 semantics (with Python 2 compatibility retained
via an added __future__ import), and updates the Makefile to
run the script using the python3 interpreter.

`python3 < bccmdl.py` with this patch applied outputs a set of
files identical to those produced by the previous invocation of
`python2.7 < bccmdl.py`
---
 cinelerra-5.1/guicast/Makefile  |   2 +-
 cinelerra-5.1/guicast/bccmdl.py | 108 ++++++++++++++++----------------
 2 files changed, 56 insertions(+), 54 deletions(-)

diff --git a/cinelerra-5.1/guicast/Makefile b/cinelerra-5.1/guicast/Makefile
index 1c3822f3..15442cfb 100644
--- a/cinelerra-5.1/guicast/Makefile
+++ b/cinelerra-5.1/guicast/Makefile
@@ -95,7 +95,7 @@ $(shell echo $(OBJS) > $(OBJDIR)/objs)
 all: $(OUTPUT) $(UTILS)
 
 $(BCXFER):	bccmdl.py bcxfer.C bcxfer.h
-	python2.7 < ./bccmdl.py
+	python3 < ./bccmdl.py
 	+$(MAKE) -C xfer
 
 $(OUTPUT): $(OBJS) $(BCXFER)
diff --git a/cinelerra-5.1/guicast/bccmdl.py b/cinelerra-5.1/guicast/bccmdl.py
index 6b5b9363..1ebb9ca0 100755
--- a/cinelerra-5.1/guicast/bccmdl.py
+++ b/cinelerra-5.1/guicast/bccmdl.py
@@ -1,5 +1,8 @@
 #!/bin/python
 
+# Retain python2 compatibility
+from __future__ import print_function
+
 base = {
   "rgb8": {
     "i8": {
@@ -608,10 +611,10 @@ def is_float(nm):
 
 def gen_xfer_proto(fd, pfx, cls, fr_cmdl, to_cmdl):
   global dtype, ctype
-  print >>fd, "%svoid %sxfer_%s_to_%s" % (pfx, cls, fr_cmdl[3:], to_cmdl[3:]),
+  print("%svoid %sxfer_%s_to_%s" % (pfx, cls, fr_cmdl[3:], to_cmdl[3:]), end=' ', file=fd)
   ityp = dtype[fr_cmdl];  fr_typ = ctype[ityp];
   otyp = dtype[to_cmdl];  to_typ = ctype[otyp];
-  print >>fd, "(unsigned y0, unsigned y1)",
+  print("(unsigned y0, unsigned y1)", end=' ', file=fd)
 
 def gen_xfer_fn(fd, fr_cmdl, to_cmdl):
   global layout, dtype, adata
@@ -620,7 +623,7 @@ def gen_xfer_fn(fd, fr_cmdl, to_cmdl):
   # xfr fn header
   gen_xfer_proto(fd, "", class_qual, fr_cmdl, to_cmdl);
   # xfr fn body
-  print >>fd, "{"
+  print("{", file=fd)
   # loops / pointer preload
   in_xfer = "flat" if not is_planar(fr_cmdl) else \
     fr_cmdl[3:] if is_yuv(fr_cmdl) else \
@@ -628,52 +631,52 @@ def gen_xfer_fn(fd, fr_cmdl, to_cmdl):
   out_xfer = "flat" if not is_planar(to_cmdl) else \
     to_cmdl[3:] if is_yuv(to_cmdl) else \
     "rgbp" if not has_alpha(to_cmdl) else "rgbap"
-  print >>fd, " xfer_%s_row_out(%s) xfer_%s_row_in(%s)" % \
-     (out_xfer, ctype[otyp], in_xfer, ctype[ityp],)
+  print(" xfer_%s_row_out(%s) xfer_%s_row_in(%s)" % (out_xfer, ctype[otyp], in_xfer, ctype[ityp]), file=fd)
+
   # load inp
   if( is_float(to_cmdl) and is_yuv(fr_cmdl) ):
-    for ic in layout[fr_cmdl]: print >>fd, "%s" % (base[ic][ityp]['r']),
+    for ic in layout[fr_cmdl]: print("%s" % (base[ic][ityp]['r']), end=' ', file=fd)
     if( ityp == "i8" ):
-      print >>fd, "\n float r, g, b; YUV::yuv.yuv_to_rgb_8(r, g, b, y, u, v);",
+      print("\n float r, g, b; YUV::yuv.yuv_to_rgb_8(r, g, b, y, u, v);", end=' ', file=fd)
     elif( ityp == "i16" ):
-      print >>fd, "\n float r, g, b; YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);",
+      print("\n float r, g, b; YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);", end=' ', file=fd)
     if( has_alpha(fr_cmdl) or has_alpha(to_cmdl) ):
       if( not has_alpha(fr_cmdl) ):
-        print >>fd, " z_float fa = 1;",
+        print(" z_float fa = 1;", end=' ', file=fd)
       elif( ityp == "i8" ):
-        print >>fd, " float fa = fclp(a,256);",
+        print(" float fa = fclp(a,256);", end=' ', file=fd)
       elif( ityp == "i16" ):
-        print >>fd, " float fa = fclp(a,65536);",
+        print(" float fa = fclp(a,65536);", end=' ', file=fd)
   else:
-    for ic in layout[fr_cmdl]: print >>fd, "%s" % (base[ic][otyp]['r']),
+    for ic in layout[fr_cmdl]: print("%s" % (base[ic][otyp]['r']), end=' ', file=fd)
     if( has_alpha(to_cmdl) and not has_alpha(fr_cmdl) ):
-      print >>fd, "%s" % (adata[otyp]),
-  print >>fd, ""
+      print("%s" % (adata[otyp]), end=' ', file=fd)
+  print("", file=fd)
   # xfer
   if( is_rgb(fr_cmdl) and is_yuv(to_cmdl) ):
     if( otyp == "i8" ):
-      print >>fd, " int32_t y, u, v;  YUV::yuv.rgb_to_yuv_8(r, g, b, y, u, v);"
+      print(" int32_t y, u, v;  YUV::yuv.rgb_to_yuv_8(r, g, b, y, u, v);", file=fd)
     elif( otyp == "i16" ):
-      print >>fd, " int32_t y, u, v;  YUV::yuv.rgb_to_yuv_16(r, g, b, y, u, v);"
+      print(" int32_t y, u, v;  YUV::yuv.rgb_to_yuv_16(r, g, b, y, u, v);", file=fd)
   elif( is_yuv(fr_cmdl) and is_rgb(to_cmdl)):
     if( otyp == "i8" ):
-      print >>fd, " int32_t r, g, b;  YUV::yuv.yuv_to_rgb_8(r, g, b, y, u, v);"
+      print(" int32_t r, g, b;  YUV::yuv.yuv_to_rgb_8(r, g, b, y, u, v);", file=fd)
     elif( otyp == "i16" ):
-      print >>fd, " int32_t r, g, b;  YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);"
+      print(" int32_t r, g, b;  YUV::yuv.yuv_to_rgb_16(r, g, b, y, u, v);", file=fd)
   # blend
   if( has_bgcolor(fr_cmdl,to_cmdl) ):
-    print >>fd, "%s" % (base["bbg"][otyp])
+    print("%s" % (base["bbg"][otyp]), file=fd)
   elif( has_alpha(fr_cmdl) and not has_alpha(to_cmdl) ):
     if( is_rgb(to_cmdl) ):
-      print >>fd, "%s" % (base["brgb"][otyp])
+      print("%s" % (base["brgb"][otyp]), file=fd)
     elif( is_yuv(to_cmdl) ):
-      print >>fd, "%s" % (base["byuv"][otyp])
+      print("%s" % (base["byuv"][otyp]), file=fd)
   # store out
   for oc in layout[to_cmdl]:
-    print >>fd, "%s" % (base[oc][otyp]['w']),
-  print >>fd, "xfer_end"
-  print >>fd, "}"
-  print >>fd, ""
+    print("%s" % (base[oc][otyp]['w']), end=' ', file=fd)
+  print("xfer_end", file=fd)
+  print("}", file=fd)
+  print("", file=fd)
 
 # output code file
 class_qual = "BC_Xfer::"
@@ -681,9 +684,9 @@ xfn = "xfer/xfer.h"
 fd = open(xfn, "w")
 xid = "".join([chr(x) if chr(x).isalnum() else '_' for x in range(256)])
 xid = "__" + xfn.upper()[xfn.rfind("/")+1:].translate(xid) + "__"
-print >>fd, "#ifndef %s" % xid
-print >>fd, "#define %s" % xid
-print >>fd, ""
+print("#ifndef %s" % xid, file=fd)
+print("#define %s" % xid, file=fd)
+print("", file=fd)
 xfd = open("bcxfer.h")
 fd.write(xfd.read())
 xfd.close()
@@ -693,57 +696,56 @@ for fr_cmdl in cmodels:
   for to_cmdl in cmodels:
     otyp = dtype[to_cmdl]
     if( is_specialized(fr_cmdl, to_cmdl) ):
-      print >>fd, "  void %s(unsigned y0, unsigned y1);" % (special[(fr_cmdl, to_cmdl)])
+      print("  void %s(unsigned y0, unsigned y1);" % (special[(fr_cmdl, to_cmdl)]), file=fd)
       continue
     if( ityp is None or otyp is None ): continue
     gen_xfer_proto(fd, "  ", "", fr_cmdl, to_cmdl);
-    print >>fd, ";"
+    print(";", file=fd)
 # end of class definition
-print >>fd, "};"
-print >>fd, ""
-print >>fd, "#endif"
+print("};", file=fd)
+print("", file=fd)
+print("#endif", file=fd)
 fd.close()
 xfn = xfn[:xfn.rfind(".h")]
 
 # xfer functions
 for fr_cmdl in cmodels:
   fd = open(xfn + "_" + fr_cmdl + ".C", "w")
-  print >>fd, "#include \"xfer.h\""
-  print >>fd, ""
+  print("#include \"xfer.h\"", file=fd)
+  print("", file=fd)
   for to_cmdl in cmodels:
     gen_xfer_fn(fd, fr_cmdl, to_cmdl)
   fd.close()
 
 fd = open(xfn + ".C", "w")
 # transfer switch
-print >>fd, "#include \"xfer.h\""
-print >>fd, ""
-print >>fd, "void %sxfer()" % class_qual
-print >>fd, "{"
+print("#include \"xfer.h\"", file=fd)
+print("", file=fd)
+print("void %sxfer()" % class_qual, file=fd)
+print("{", file=fd)
 mx_no = mx_bcmdl + 1
-print >>fd, "  static xfer_fn xfns[%d][%d] = {" % (mx_no, mx_no)
+print("  static xfer_fn xfns[%d][%d] = {" % (mx_no, mx_no), file=fd)
 for fr_no in range(mx_no):
   fr_cmdl = bcmodels.get(fr_no)
   ityp = dtype[fr_cmdl]
-  print >>fd, "  { // %s" % (fr_cmdl.upper() if ityp else "None")
+  print("  { // %s" % (fr_cmdl.upper() if ityp else "None"), file=fd)
   n = 0
   for to_no in range(mx_no):
     to_cmdl = bcmodels.get(to_no)
     otyp = dtype[to_cmdl]
     xfn = special[(fr_cmdl, to_cmdl)] if( is_specialized(fr_cmdl, to_cmdl) ) else \
       "xfer_%s_to_%s" % (fr_cmdl[3:], to_cmdl[3:]) if ( ityp and otyp ) else None
-    if( n > 72 ): print >>fd, ""; n = 0
-    if( n == 0 ): print >>fd, "   ",; n += 4
+    if( n > 72 ): print("", file=fd); n = 0
+    if( n == 0 ): print("   ", end=' ', file=fd); n += 4
     fn = "&%s%s" % (class_qual, xfn) if( xfn ) else "0"
-    print >>fd, "%s, " % (fn),
+    print("%s, " % (fn), end=' ', file=fd)
     n += len(fn) + 3
-  print >>fd, "}, "
-print >>fd, "  }; "
-print >>fd, "  xfn = xfns[in_colormodel][out_colormodel];"
-print >>fd, "  xfer_slices(out_w*out_h/0x80000+1);"
-print >>fd, "}"
-print >>fd, ""
-print >>fd, "#include \"bcxfer.C\""
-print >>fd, ""
+  print("}, ", file=fd)
+print("  }; ", file=fd)
+print("  xfn = xfns[in_colormodel][out_colormodel];", file=fd)
+print("  xfer_slices(out_w*out_h/0x80000+1);", file=fd)
+print("}", file=fd)
+print("", file=fd)
+print("#include \"bcxfer.C\"", file=fd)
+print("", file=fd)
 fd.close()
-
-- 
2.19.2