Add porygon.py

porygon.py

@@ -0,0 +1,100 @@
+#!/usr/bin/env python3
+# Copyright 2018 Kiyoshi Aman
+#
+# 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 sys
+
+from PyQt5.QtGui import QImage, QPixmap, QPainter, QGuiApplication
+
+def linear1(tile):
+    data = bytearray()
+
+    for y in range(8):
+        byte = 0
+
+        for x in range(8):
+            if tile.pixelIndex(x, y) > 0:
+                byte += 2**x
+
+        data.append(byte)
+
+    return bytes(data)
+
+def linear2(tile):
+    data = bytearray()
+
+    for y in range(8):
+        bp1 = 0
+        bp2 = 0
+
+        for x in range(8):
+            pixel = tile.pixelIndex(x, y)
+
+            a = pixel % 2
+            b = int(pixel / 2)
+            if a == 1:
+                bp1 += 2**x
+            if b == 1:
+                bp2 += 2**x
+
+        data.extend((bp1, bp2))
+
+    return bytes(data)
+
+def planar2(tile):
+    data = bytearray()
+
+    for y in range(8):
+        byte = 0
+
+        for x in range(4):
+            pixel = tile.pixelIndex(x, y)
+            byte = byte & (pixel << (4 - x))
+
+        data.append(byte)
+        byte = 0
+
+        for x in range(4, 8):
+            pixel = tile.pixelIndex(x, y)
+            byte = byte & (pixel << (8 - x))
+
+        data.append(byte)
+
+    return bytes(data)
+
+# Add new formats to this dict as they are implemented.
+formats = {
+    '1bpp':    linear1,
+    'linear2': linear2,
+    'planar2': planar2,
+    'nes2':    planar2,
+    'gb2':     linear2,
+    'snes2':   linear2,
+    'gbc2':    linear2,
+}
+
+def main():
+    app = QGuiApplication(sys.argv)
+
+    if len(sys.argv < 3):
+        print(
+            '''Usage: porygon.py image format
+
+            image is an image file in PNG.
+
+            format is one of the supported formats:
+            '''
+        )
+        for format in formats.keys():
+            print('* {}'.format(format))

readme.txt

@@ -1,5 +1,5 @@
-Smeargle 0.2.1 readme
--------------------
+Smeargle 0.3.0 readme
+---------------------
 Usage: smeargle.py font.json script.txt
 
 font.json is a JSON document which describes the font and provides a mapping
@@ -38,7 +38,18 @@ in the map.
     }
 }
 
+porygon.py
+----------
+Usage: porygon.py image format
+
+This script converts the image into the target format. Run porygon.py without
+arguments to see what formats are available.
+
 Changelog:
+0.3.0
+* Added porygon.py script. Linear 1 & 2 and planar 2 bits-per-pixel formats
+  are supported.
+
 0.2.2
 * Removed binary output. It wasn't emitting anything actually useful to anyone.
 * Emit index map as hex.