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author | Wladimir J. van der Laan <laanwj@gmail.com> | 2013-08-24 13:41:12 +0200 |
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committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2013-08-24 13:41:31 +0200 |
commit | 4593b97f2aa9d9d445651846ec64712a69fcb43c (patch) | |
tree | 53878e611329897a1d079ec35f5dec8c6ddbe5af /tools | |
parent | 654ba6e376db007ebb3e1d12bd02efebb3a5e6d1 (diff) |
fb: add tests for A8 and L8 texture formats
Try to find glquake lightmap bug...
Diffstat (limited to 'tools')
-rwxr-xr-x | tools/genmipmaps_l8.py | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/tools/genmipmaps_l8.py b/tools/genmipmaps_l8.py new file mode 100755 index 0000000..d810d05 --- /dev/null +++ b/tools/genmipmaps_l8.py @@ -0,0 +1,109 @@ +#!/usr/bin/python +''' +Generate 'ETC1' texture with mipmaps in dds format from an image file. +''' +# Copyright (c) 2012-2013 Wladimir J. van der Laan +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sub license, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice (including the +# next paragraph) shall be included in all copies or substantial portions +# of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +# DEALINGS IN THE SOFTWARE. +from __future__ import print_function, division, unicode_literals +import struct, sys, PIL, os +from PIL import Image +import argparse, tempfile +from subprocess import call + +DDS_MAGIC = 0x20534444 +DDS_UINT32 = b'<I' +FOURCC_ETC1 = struct.unpack(DDS_UINT32, b'ETC1')[0] # custom FOURCC +ETC1TOOL = 'etc1tool' # Android ETC1 tool, needs to be in PATH + +def main(): + parser = argparse.ArgumentParser(description='Generate mipmaps from image and compress to ETC1 dds.') + parser.add_argument('input', metavar='INFILE', type=str, + help='Input file (usually .png or .jpg)') + parser.add_argument('output', metavar='OUTFILE', type=str, + help='Output file (.dds)') + parser.add_argument('--a8', default=False, action='store_const', const=True, + help='Use A8 instead of L8 output') + args = parser.parse_args() + + img = Image.open(args.input) + orig_width = width = img.size[0] + orig_height = height = img.size[1] + img = img.convert('L') + assert(width > 0 and height > 0) + + (fd, tmpout) = tempfile.mkstemp(suffix='.png') + os.close(fd) # won't be using the already-opened fd + (fd, tmpout2) = tempfile.mkstemp(suffix='.pkm') + os.close(fd) + mip = 0 + mips = [] + while True: + print('Generating mip %i: %ix%i' % (mip, width, height)) + + data = img.tostring() + print(' size: %i' % len(data)) + mips.append(data) + + # Go to next mip level + if width == 1 and height == 1: # 1x1 reached + break + width = (width+1) >> 1 + height = (height+1) >> 1 + mip += 1 + img = img.resize((width, height), PIL.Image.ANTIALIAS) + + with open(args.output, 'wb') as f: + # Write dds header + hdrdata = [0] * (128//4) + hdrdata[0] = DDS_MAGIC # dwMagic + hdrdata[1] = 124 # dwSize + hdrdata[2] = 0x000A1007 # dwFlags (CAPS, WIDTH, HEIGHT, PIXELFORMAT, MIPMAPCOUNT, LINEARSIZE) + #hdrdata[2] = 0x0002100F # dwFlags gimp (CAPS, WIDTH, HEIGHT, PITCH, PIXELFORMAT, MIPMAPCOUNT) + hdrdata[3] = orig_height # dwHeight + hdrdata[4] = orig_width # dwWidth + hdrdata[5] = len(mips[0]) # dwPitchOrLinearSize + hdrdata[6] = 0 # dwDepth + hdrdata[7] = len(mips) # dwMipMapCount + hdrdata[19] = 32 # sPixelFormat.dwSize + if args.a8: + hdrdata[20] = 0x00000002 # sPixelFormat.dwFlags = DDPF_ALPHA + else: + hdrdata[20] = 0x00020000 # sPixelFormat.dwFlags = DDPF_LUMINANCE + hdrdata[21] = 0 # sPixelFormat.dwFourCC + hdrdata[22] = 8 # sPixelFormat.dwRGBBitCount + if args.a8: + hdrdata[23] = 0x00000000 # sPixelFormat.dwRBitMask + hdrdata[24] = 0 # sPixelFormat.dwGBitMask + hdrdata[25] = 0 # sPixelFormat.dwBBitMask + hdrdata[26] = 0x000000ff # sPixelFormat.dwAlphaBitMask + else: + hdrdata[23] = 0x000000ff # sPixelFormat.dwRBitMask + hdrdata[24] = 0 # sPixelFormat.dwGBitMask + hdrdata[25] = 0 # sPixelFormat.dwBBitMask + hdrdata[26] = 0x00000000 # sPixelFormat.dwAlphaBitMask + hdrdata[27] = 0x00401008 # sCaps.dwCaps1 (COMPLEX, TEXTURE, MIPMAP) + f.write(struct.pack(b'<32I', *hdrdata)) + for mip in mips: + f.write(mip) + +if __name__ == '__main__': + main() + |