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magpie.py
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magpie.py
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# converts the CuNNy model to an MagpieFX effect
# this code sucks, maybe tidy up one day™..
import sys
import numpy as np
import pickle
import argparse
from collections import OrderedDict
from pathlib import Path
parser = argparse.ArgumentParser()
parser.add_argument('model', type=str)
args = parser.parse_args()
with open(args.model, 'rb') as f:
m = pickle.load(f)
N = sum(1 for x in m.keys() if 'conv' in x and 'weight' in x)
D = next(m[x] for x in m if 'cin' in x and 'weight' in x).shape[0]
RGB = m.get('rgb', False)
CRELU = m.get('crelu', False)
QUANT = m.get('quant', False)
QUANT_8 = m.get('quant-8', False)
SIZE = m.get('size', 0)
stem = Path(args.model).stem
name = stem[:stem.rfind('-')]
# thanks vim
OPENBR = '{'
CLOSEBR = '}'
ndr = lambda *d: np.ndindex(*d)
shader = []
shader_buf = ''
indent_lvl = 0
def flush():
global shader, shader_buf
shader += [shader_buf]
shader_buf = ''
def S(txt, end='\n', t=0):
global shader, shader_buf, indent_lvl
if t < 0:
indent_lvl += t
tabs = indent_lvl * '\t'
shader_buf += tabs + ('\n' + tabs).join(txt.split('\n')) + end
if t > 0:
indent_lvl += t
if len(shader_buf) > 1024:
flush()
def fmt(v, n=3):
return f'{v:.{n}e}' # enough for fp16
def weight(ws, x, y, ich, och, d, iidx, oidx, l):
w = [fmt(v.item()) for v in ws[(4*oidx):(4*(1+oidx)), (4*iidx):(4*(1+iidx)),
y, x].swapaxes(0, 1).ravel()]
wstr = ', '.join(w)
return f'mul({l}, M4({wstr}))' if ich >= 4 else f'mul({l}, M3x4({wstr}))' \
if ich == 3 else f'V4({wstr}) * {l}'
header = """//!MAGPIE EFFECT
//!VERSION 4
//!SORT_NAME __SORT__
//!TEXTURE
Texture2D INPUT;
//!TEXTURE
//!WIDTH INPUT_WIDTH * 2
//!HEIGHT INPUT_HEIGHT * 2
Texture2D OUTPUT;
//!SAMPLER
//!FILTER POINT
SamplerState SP;
//!SAMPLER
//!FILTER LINEAR
SamplerState SL;
//!COMMON
#define O(t, x, y) t.SampleLevel(SP, pos + float2(x, y) * pt, 0)
#define V4 min16float4
#define M4 min16float4x4
"""
imgs = {}
def allocimgs(ins, n):
global header, imgs
out = []
for name, ref in imgs.items():
if len(out) == n:
break
if ref == 0:
out += [name]
imgs[name] += 1
for i in range(len(out), n):
name = f'T{len(imgs)}'
header += '//!TEXTURE\n'
header += '//!WIDTH INPUT_WIDTH\n'
header += '//!HEIGHT INPUT_HEIGHT\n'
fmt = 'R8G8B8A8_SNORM' if CRELU else 'R8G8B8A8_UNORM'
fmt = fmt if QUANT else 'R16G16B16A16_FLOAT'
header += f'//!FORMAT {fmt}\n'
header += f'Texture2D {name};\n'
header += '\n'
imgs[name] = 1
out += [name]
for inv in ins:
if inv in imgs:
imgs[inv] -= 1
return out
npass = 0
def prelude(ps, ins, sz, stype, nouts=1, loadfn=False, save=None,
multiout=False, signed=False):
global header, npass
npass += 1
S(f'//!PASS {npass}')
S(f'//!DESC {ps} ({sz[1]}x{sz[0]})')
shuffle = ps == 'out-shuffle'
S(f'//!BLOCK_SIZE {16 if shuffle else 8}')
S(f'//!NUM_THREADS 64')
addins = ins
if shuffle:
addins = ['INPUT'] + addins
S(f'//!IN ' + ', '.join(addins))
if shuffle:
S(f'//!OUT OUTPUT')
else:
save = allocimgs(ins, len(save))
S(f'//!OUT {", ".join(save)}')
if loadfn:
for i, inv in enumerate(ins):
fn = f'O({inv}, x, y)'
if inv == 'INPUT':
if not RGB:
fn = f'dot(float3(0.299, 0.587, 0.114), {fn}.rgb)'
else:
fn = f'{fn}.rgb'
S(f'#define L{i}(x, y) {stype}({fn})')
return save
def write(ps, k, actfn, ins):
ws = m[k+'weight']
sz = ws.shape
inv = ins[0]
crelup = CRELU and inv != 'INPUT'
if QUANT_8 and ps != 'in':
ws = ws.clip(-1., 1.)
if crelup:
ws = ws.reshape(sz[0], -1, 4, sz[2], sz[3])
half = ws.shape[1] // 2
ws = np.dstack((ws[:, :half], ws[:, half:])).reshape(sz)
och = sz[0]
ich = sz[1]
d = sz[2]
shuffle = ps == 'out-shuffle'
nouts = och // 4
stype = 'min16float' if ich == 1 else 'V3' if ich == 3 else 'V4'
cent = d // 2
cm = 2 if crelup else 1
nins = max(ich // 4 // cm, 1)
texs = [f'{ps}_{oidx}' for oidx in range(nouts)]
texs = prelude(ps, ins, sz, stype, nouts=nouts, loadfn=True, save=texs,
multiout=True, signed=(ps == 'out'))
if inv == 'INPUT' and RGB:
S(f'#define V3 min16float3')
S(f'#define M3x4 min16float3x4')
S(f'void Pass{npass}(uint2 blockStart, uint3 tid) {OPENBR}', t=1)
S(f'float2 pt = float2(GetInputPt());')
if shuffle:
S('uint2 gxy = (Rmp8x8(tid.x) << 1) + blockStart;')
else:
S('uint2 gxy = Rmp8x8(tid.x) + blockStart;')
S(f'uint2 sz = Get{"Output" if shuffle else "Input"}Size();')
S('if (gxy.x >= sz.x || gxy.y >= sz.y)')
S('\treturn;')
if shuffle:
S('float2 pos = ((gxy >> 1) + 0.5) * pt;')
else:
S('float2 pos = (gxy + 0.5) * pt;')
I = min(nins if d == 1 else 2, nins)
S(f'{stype} {", ".join(f"s{i}_{y}_{x}" for i, y, x in np.ndindex(I, d, d))};')
S(f'V4 {", ".join(f"r{o} = 0.0" for o in range(nouts))};')
for iidx in range(0, max(ich // 4, 1), I):
vi = min(I, nins - iidx)
sbuf = []
for i, y, x, j in ndr(vi // cm, d, d, cm):
si = iidx + cm*i + j
s = f'L{si // cm}({x - cent}.0, {y - cent}.0)'
sbuf += [f's{cm*i + j}_{y}_{x} = {s};']
if len(sbuf) == 3:
S(' '.join(sbuf))
sbuf = []
if sbuf:
S(' '.join(sbuf))
for i, y, x, j in ndr(vi // cm, d, d, cm):
si = iidx + cm*i + j
for o in range(nouts):
l = f's{cm*i + j}_{y}_{x}'
wstr = weight(ws, x, y, ich, och, d, si, o, l)
S(f'r{o} += {wstr};')
for o in range(nouts):
bn = k + 'bias'
if bn in m and not np.all(m[bn] < 1e-5):
b = [fmt(v.item()) for v in m[bn].ravel()[4*o:4*(o+1)]]
S(f'r{o} += V4({", ".join(b)});')
if actfn:
S(f'r{o} = {actfn.replace("T", "V4").replace("X", f"r{o}")};')
if shuffle:
continue
S(f'{texs[o]}[gxy] = r{o};')
if shuffle:
if not RGB:
S('static const float3x3 RY = {0.299, 0.587, 0.114, -0.169, -0.331, 0.5, 0.5, -0.419, -0.081},'
' YR = {1, -0.00093, 1.401687, 1, -0.3437, -0.71417, 1, 1.77216, 0.00099};')
S('float2 opt = float2(GetOutputPt());')
S('float2 fpos = (float2(gxy) + 0.5) * opt;')
if not RGB:
S('float3 yuv;')
for y, x in ndr(2, 2):
c = 'xyzw'[y*2 + x]
src = f'INPUT.SampleLevel(SL, fpos + float2({x}.0, {y}.0) * opt, 0).rgb'
if RGB:
l = f'saturate({src} + float3(r0.{c}, r1.{c}, r2.{c}))'
else:
S(f'yuv = mul(RY, {src});')
l = f'mul(YR, float3(saturate(yuv.r + r0.{c}), yuv.yz))'
S(f'OUTPUT[gxy + int2({x}, {y})] = float4({l}, 1.0);')
S(CLOSEBR, t=-1)
return texs
gpl = """
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
//
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
header = (f'// CuNNy {name.replace("-", " ")} - '
'https://github.com/funnyplanter/CuNNy\n' + gpl + '\n') + header
texs = ['INPUT']
nconv = 1
relu = 'max(X, 0.0)' if not CRELU else 'X'
for k_ in m:
suf = 'weight'
if not k_.endswith(suf):
continue
k_ = k_[:-len(suf)]
k = k_
pref = '_orig_mod.'
if k.startswith(pref):
k = k[len(pref):-1]
if k.startswith('cin'):
texs = write('in', k_, relu, texs)
elif k.startswith('conv'):
texs = write(f'conv{nconv}', k_, relu, texs)
nconv += 1
elif k.startswith('cout'):
texs = write('out-shuffle', k_, None, texs)
suf = name[name.rfind("NVL")+3:].replace('-', '')
suf += '-' if suf != '' else ''
shader = [header \
.replace('__SORT__', f'CuNNy-{suf}{SIZE:07}')] + shader
flush()
fp = f'test/CuNNy-{stem}.hlsl'
with open(fp, 'w') as f:
f.write(''.join(shader))
print(fp)