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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/thebes/genTables.py
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/thebes/genTables.py')
-rw-r--r--gfx/thebes/genTables.py22
1 files changed, 22 insertions, 0 deletions
diff --git a/gfx/thebes/genTables.py b/gfx/thebes/genTables.py
new file mode 100644
index 000000000..0e902c52a
--- /dev/null
+++ b/gfx/thebes/genTables.py
@@ -0,0 +1,22 @@
+#!/usr/bin/python
+
+from __future__ import print_function
+import sys
+
+def table_generator(f):
+ return ",\n".join([", ".join(["0x%2.2x" % h for h in [f(i) for i in range(r,r+16)]]) for r in range(0, 65536, 16)])
+
+def generate(output):
+ output.write("const uint8_t gfxUtils::sPremultiplyTable[256*256] = {\n");
+ output.write(table_generator(lambda i: ((i / 256) * (i % 256) + 254) / 255) + "\n")
+ output.write("};\n");
+ output.write("const uint8_t gfxUtils::sUnpremultiplyTable[256*256] = {\n");
+ output.write(table_generator(lambda i: (i % 256) * 255 / ((i / 256) if (i / 256) > 0 else 255) % 256) + "\n")
+ output.write("};\n");
+
+if __name__ == '__main__':
+ if len(sys.argv) != 2:
+ print("Usage: genTables.py <header.h>", file=sys.stderr)
+ sys.exit(1)
+ with open(sys.argv[1], 'w') as f:
+ generate(f)