60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
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import struct, os
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IN_PATH = r"K:\ghidra\Crusader_Decomp\binary\Crusader - No Remorse Memdump Weapons.bin"
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OUT_PATH = r"K:\ghidra\Crusader_Decomp\binary\vram_weapons.bmp"
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W, H = 1024, 512
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with open(IN_PATH, 'rb') as f:
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data = f.read()
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exp = W * H * 2
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if len(data) < exp:
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print(f"Warning: expected {exp} bytes, got {len(data)} bytes")
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# read pixels (little-endian 16bpp)
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count = min(len(data) // 2, W * H)
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pixels = [None] * (W * H)
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for i in range(count):
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off = i * 2
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val = data[off] | (data[off+1] << 8)
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b = (val & 0x1F) << 3
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g = ((val >> 5) & 0x1F) << 3
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r = ((val >> 10) & 0x1F) << 3
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pixels[i] = (r, g, b)
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# fill remaining if any
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for i in range(count, W*H):
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pixels[i] = (0,0,0)
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# BMP row padding
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row_bytes_unpadded = 3 * W
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row_size = (row_bytes_unpadded + 3) // 4 * 4
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pixel_data = bytearray()
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for y in range(H-1, -1, -1):
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row_start = y * W
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for x in range(W):
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r,g,b = pixels[row_start + x]
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pixel_data.extend(bytes((b, g, r)))
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pad = row_size - row_bytes_unpadded
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if pad:
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pixel_data.extend(b"\x00" * pad)
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# headers
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bfType = b'BM'
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bfSize = 14 + 40 + len(pixel_data)
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bfReserved1 = 0
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bfReserved2 = 0
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bfOffBits = 14 + 40
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bmp = bytearray()
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bmp.extend(bfType)
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bmp.extend(struct.pack('<IHHI', bfSize, bfReserved1, bfReserved2, bfOffBits))
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# DIB header (BITMAPINFOHEADER)
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biSize = 40
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biWidth = W
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biHeight = H
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biPlanes = 1
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biBitCount = 24
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biCompression = 0
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biSizeImage = len(pixel_data)
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biXPelsPerMeter = 2835
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biYPelsPerMeter = 2835
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biClrUsed = 0
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biClrImportant = 0
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bmp.extend(struct.pack('<IIIHHIIIIII', biSize, biWidth, biHeight, biPlanes, biBitCount, biCompression, biSizeImage, biXPelsPerMeter, biYPelsPerMeter, biClrUsed, biClrImportant))
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bmp.extend(pixel_data)
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with open(OUT_PATH, 'wb') as f:
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f.write(bmp)
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print('Wrote', OUT_PATH, 'bytes=', len(bmp))
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