upscaler test with coe initialized rom

4 files changed, 31 insertions, 0 deletions

diff --git a/test/upscaler/.gitignore b/test/upscaler/.gitignore
new file mode 100644
index 0000000..5c9a6b6
--- /dev/null
+++ b/test/upscaler/.gitignore
@@ -0,0 +1 @@
+*.coe
diff --git a/test/upscaler/bitmap-ball.py b/test/upscaler/bitmap-ball.py
new file mode 100755
index 0000000..85474f1
--- /dev/null
+++ b/test/upscaler/bitmap-ball.py
@@ -0,0 +1,28 @@
+#!/bin/python3
+
+from PIL import Image
+import sys
+
+# return array of 12-bit color values (0bRRRGGGBBB)
+def pixeldata():
+  image = Image.open(sys.argv[-1]) # use last argument as input image file
+  pixels = image.load()
+  pixarr = []
+  w,h = image.size
+  for x in range(w):
+    for y in range(h):
+      color = pixels[x, y]
+      crushed_color = ((color[0] >> 4) << 8 | (color[1] >> 4) << 4 | (color[2] >> 4) << 0)
+      pixarr.append(crushed_color)
+  return pixarr
+
+if __name__ == "__main__":
+  # get array of 12-bit pixels
+  pixels = pixeldata()
+  # coe file header
+  print("memory_initialization_radix=16;\nmemory_initialization_vector=", end='')
+  # format pixel value as 12-bit hexadecimal with padding seperated by comma and space
+  formatted_pixels = ','.join([f"{hex(c)[2:].zfill(3)}" for c in pixels])
+  print(f"{formatted_pixels};")
+
+
diff --git a/test/upscaler/img.png b/test/upscaler/img.png
new file mode 100644
index 0000000..946d624
--- /dev/null
+++ b/test/upscaler/img.png
diff --git a/test/upscaler/makefile b/test/upscaler/makefile
new file mode 100644
index 0000000..072d5b2
--- /dev/null
+++ b/test/upscaler/makefile
@@ -0,0 +1,2 @@
+img.coe: img.png
+	./bitmap-ball.py $< > $@