Convert from make to meson

Meson makes cross compilation easier. Replace the make-based build
system with meson.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

4 files changed, 64 insertions, 42 deletions

diff --git a/data/frames/.gitignore b/data/frames/.gitignore
deleted file mode 100644
index 2c0a1ff..0000000
--- a/data/frames/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: CC0-1.0
-
-*.bin
diff --git a/data/frames/Makefile b/data/frames/Makefile
deleted file mode 100644
index 026cbdd..0000000
--- a/data/frames/Makefile
+++ /dev/null
@@ -1,17 +0,0 @@
-# SPDX-License-Identifier: CC0-1.0
-
-frames=$(patsubst %.pnm.gz,%.pnm,$(wildcard *.pnm.gz))
-
-all:
-	./gen-lut.py
-
-clean:
-	@rm -f *.bin
-
-%.pnm: %.pnm.gz
-	gzip -dk $<
-
-install: $(frames)
-	mkdir -p $(INSTALL_DIR)/frames/
-	mv $(frames) $(INSTALL_DIR)/frames/
-	cp *.bin $(INSTALL_DIR)/frames/
diff --git a/data/frames/gen-lut.py b/data/frames/gen-lut.py
index c3591f9..bd371a4 100755
--- a/data/frames/gen-lut.py
+++ b/data/frames/gen-lut.py
@@ -2,37 +2,38 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 # SPDX-FileCopyrightText: 2016 Renesas Electronics Corporation
 
+import argparse
 import math
 import sys
 
-clu_configs = (
-    ('zero', {
+clu_configs = {
+    'zero': {
         'scale': 0.0,
         'a': 0.0,
         'freq': 1.0,
         'weights': (1.0, 1.0, 1.0)
-    } ),
-    ('identity', {
+    },
+    'identity': {
         'scale': 1.0,
         'a': 0.0,
         'freq': 1.0,
         'weights': (1.0, 1.0, 1.0)
-    } ),
+    },
     # Keep the three weights different to generate an anisothropic
     # look up table.
-    ('wave', {
+    'wave': {
         'scale': 1.0,
         'a': 0.1,
         'freq': 3.0,
         'weights': (1.0, 2.0, 3.0)
-    } ),
-)
+    },
+}
 
-lut_configs = (
-    ('zero',     0.0, 1.0, 1.0, 1.0),
-    ('identity', 1.0, 1.0, 1.0, 1.0),
-    ('gamma',    1.0, 0.5, 1.0, 2.0),
-)
+lut_configs = {
+    'zero':     (0.0, 1.0, 1.0, 1.0),
+    'identity': (1.0, 1.0, 1.0, 1.0),
+    'gamma':    (1.0, 0.5, 1.0, 2.0),
+}
 
 def clu_value(x, y, z, scale, a, freq, weights):
     x = x / 16.
@@ -54,9 +55,9 @@ def generate_clu(config):
     for z in range(17):
         for y in range(17):
             for x in range(17):
-                clu.extend(clu_value(x, y, z, **config[1]))
+                clu.extend(clu_value(x, y, z, **config))
 
-    open('clu-%s.bin' % config[0], 'wb').write(clu)
+    return clu
 
 
 def gamma(vin, gamma, scale):
@@ -65,18 +66,31 @@ def gamma(vin, gamma, scale):
 def generate_lut(config):
     lut = bytearray()
     for i in range(256):
-        lut.extend([gamma(i, g, config[1]) for g in config[2:]])
+        lut.extend([gamma(i, g, config[0]) for g in config[1:]])
         lut.append(0)
 
-    open('lut-%s.bin' % config[0], 'wb').write(lut)
+    return lut
 
 
 def main(argv):
-    for config in clu_configs:
-        generate_clu(config)
-
-    for config in lut_configs:
-        generate_lut(config)
+    # Parse command line arguments
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--output', '-o', metavar='file', type=str,
+                        help='Output file name. Defaults to standard output if not specified.')
+    parser.add_argument('--type', '-t', dest='table_type', type=str, required=True,
+                        choices=['clu', 'lut'], help='Select the look up table type.')
+    parser.add_argument('table', type=str,
+                        help='Table contents')
+    args = parser.parse_args(argv[1:])
+
+    out = open(args.output, 'wb')
+
+    if args.table_type == 'clu':
+        table = generate_clu(clu_configs[args.table])
+    else:
+        table = generate_lut(lut_configs[args.table])
+
+    out.write(table)
 
     return 0
 
diff --git a/data/frames/meson.build b/data/frames/meson.build
new file mode 100644
index 0000000..f4ec8e3
--- /dev/null
+++ b/data/frames/meson.build
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: CC0-1.0
+
+gen_lut = find_program('./gen-lut.py')
+gzip = find_program('gzip')
+
+tables = [
+    ['clu', 'identity'],
+    ['clu', 'wave'],
+    ['clu', 'zero'],
+    ['lut', 'gamma'],
+    ['lut', 'identity'],
+    ['lut', 'zero'],
+]
+
+foreach table : tables
+    name = '@0@-@1@.bin'.format(table[0], table[1])
+    custom_target(output : name,
+                  command : [gen_lut, '-o', '@OUTPUT@', '-t', table[0], table[1]],
+                  install : true,
+                  install_dir : 'frames')
+endforeach
+
+custom_target(input : files('frame-reference-1024x768.pnm.gz'),
+              output : 'frame-reference-1024x768.pnm',
+              capture : true,
+              command : [gzip, '-cd', '@INPUT@'],
+              install : true,
+              install_dir : 'frames')