mesa: Autogenerate most of format_pack.c

We were auto-generating it before.  The problem was that the autogeneration
tool we were using was called "copy, paste, and edit".  Let's use a more
sensible solution.

Signed-off-by: Jason Ekstrand <[email protected]>

v2 by Samuel Iglesias <[email protected]>
- Remove format_pack.c as it is now autogenerated
- Add usage of INDENT_FLAGS in Makefile.am
- Remove trailing blank line

v3 by Samuel Iglesias <[email protected]>
- Merge format_convert.py into format_parser.py
   - Adapt pack_*_* function generations
- Fix out-of-tree build

v4 by Samuel Iglesias <[email protected]>
- _get_datatype() is now a helper function

v5 by Samuel Iglesias <[email protected]>
- format_pack.c.mako is now format_pack.py, with the template code
  inlined. It now auto-generates format_pack.c
- Simplify Makefile.am change.
- Modify SConscript to build format_pack.c with scons.
- Remove run_mako.py
- Add format_pack.c to gitignore

v6 by Samuel Iglesias <[email protected]>:
- Don't allow float to non-normalized integer format conversions.
- Add non-normalized formats support for ubyte packing functions. Merge
the previously separated patch.
- Add clamping for non-normalized integer formats in pack_ubyte*()

v7 by Samuel Iglesias <[email protected]>:
- Add assert to check that sRGB formats are 8-bit size.

Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/mesa/Makefile.am b/src/mesa/Makefile.am
index 8d8082ae36a..6b00310032f 100644
--- a/src/mesa/Makefile.am
+++ b/src/mesa/Makefile.am
@@ -83,6 +83,7 @@ BUILT_SOURCES = \
 	main/get_hash.h \
         main/format_info.c \
 	$(BUILDDIR)main/git_sha1.h \
+	main/format_pack.c \
 	$(BUILDDIR)program/program_parse.tab.c \
 	$(BUILDDIR)program/lex.yy.c
 CLEANFILES = \
@@ -106,6 +107,14 @@ main/format_info.c: main/formats.csv                                    \
                    $< > [email protected];                                         \
 	mv [email protected] $@;
 
+main/format_pack.c: main/format_pack.py main/formats.csv		\
+                    main/format_parser.py
+	$(AM_V_GEN)set -e;						\
+	$(PYTHON2) $(PYTHON_FLAGS)					\
+			$(srcdir)/main/format_pack.py			\
+			$(srcdir)/main/formats.csv			\
+		| $(INDENT) $(INDENT_FLAGS) > $@;
+
 main/formats.c: main/format_info.c
 
 noinst_LTLIBRARIES = $(ARCH_LIBS)