Files
SoundGame Dev f0f0a9b50e 初始提交:3 款纯音频游戏 + 共享引擎 + 完整文档与资产管线
- 共享引擎(app/src/main):GestureEngine 6 手势识别、AudioEngine 三层音频
  (ExoPlayer BGM 交叉淡入 / 对白 ducking / SoundPool 低延迟)、Game/GameEngine
  状态机接口、MainActivity 全屏封面 + TalkBack
- 《声命线》storyline:末世互动广播剧,3 幕 8 抉择点 4 结局
- 《声东击西》reflex:听声辨位反应,12 波战斗 + BGM 三档 BPM 变速
- 《暗室》escape:3x3 网格密室逃脱,钥匙→铁柜→保险丝→电箱→大门谜题链
- 文档:setup(从零搭建)/ architecture(架构)/ engine-api(引擎 API)/
  asset-pipeline(资产流水线)/ games/*(三款游戏设计文档)
- 资产管线:Qwen3-TTS 对白 + 程序合成音效/BGM + Mureka BGM 的 gen 脚本与台账,
  全部 ogg 资产入库可复现
- env.d 环境脚本:android/tts 入库;sfx/mureka 含密钥不入库,仅提交 .example.sh 模板
2026-08-29 13:00:34 +08:00

88 lines
4.6 KiB
Python

#!/usr/bin/env python3
"""GPTQ int8 per-channel weight-only quantization of a decoder onnx. Captures each linear's input
activations (ORT), builds the Hessian H = AᵀA, and quantizes weights column-by-column with
inverse-Hessian error compensation (the OBQ/GPTQ update). Writes a W8 onnx. argv: <fp32_onnx> <out>
[Lslice]."""
import os, sys
import numpy as np, onnx
from onnx import TensorProto, helper, numpy_helper
import onnxruntime as ort
DEC, OUT = sys.argv[1], sys.argv[2]
LSL = int(sys.argv[3]) if len(sys.argv) > 3 else 768
LATS = np.load("/weka2/cj/clod/sames_fp8/calib_latents.npz")["latents"]
m = onnx.load(DEC, load_external_data=True); g = m.graph
inits = {i.name: i for i in g.initializer}; prod = {o: n for n in g.node for o in n.output}
def warr(n):
w = n.input[1]
if w in inits: return w, numpy_helper.to_array(inits[w]), False, None
p = prod.get(w)
if p and p.op_type == "Transpose" and p.input and p.input[0] in inits: return p.input[0], numpy_helper.to_array(inits[p.input[0]]), True, p
return None, None, None, None
linears = []
for n in g.node:
if n.op_type == "MatMul":
ws, W, vt, tn = warr(n)
if ws is not None and W.ndim == 2: linears.append((n, ws, W, vt, tn))
print(f"{len(linears)} linears; capturing activations (L={LSL}) ...", flush=True)
# --- capture inputs via ORT (add as temp outputs, then restore) ---
in_names = [n.input[0] for n, *_ in linears]
n0 = len(g.output)
existing = {o.name for o in g.output}
for t in in_names:
if t not in existing: g.output.append(helper.make_tensor_value_info(t, TensorProto.FLOAT, None))
onnx.save(m, "/weka2/cj/clod/sames_fp8/_gptq_cap.onnx", save_as_external_data=True, all_tensors_to_one_file=True, location="_gptq_cap.onnx.data", size_threshold=1024)
del g.output[n0:]
so = ort.SessionOptions(); so.graph_optimization_level = ort.GraphOptimizationLevel.ORT_DISABLE_ALL
sess = ort.InferenceSession("/weka2/cj/clod/sames_fp8/_gptq_cap.onnx", so, providers=["CUDAExecutionProvider", "CPUExecutionProvider"])
iname = sess.get_inputs()[0].name
Hs = {n.name: None for n, *_ in linears}
for li in range(LATS.shape[0]):
acts = sess.run(in_names, {iname: LATS[li:li + 1, :, :LSL].astype(np.float32)})
for (n, *_), a in zip(linears, acts):
A = a.reshape(-1, a.shape[-1]).astype(np.float64)
Hs[n.name] = A.T @ A if Hs[n.name] is None else Hs[n.name] + A.T @ A
print(f" latent {li} done", flush=True)
# --- GPTQ ---
def gptq(W, H, scale, pd=0.01):
W = W.astype(np.float64).copy(); cin = W.shape[1]; H = H.copy()
dead = np.diag(H) == 0; H[dead, dead] = 1.0; W[:, dead] = 0.0
H[np.diag_indices(cin)] += pd * np.mean(np.diag(H))
Hinv = np.linalg.cholesky(np.linalg.inv(H)).T # upper-tri Cholesky of H⁻¹
Qi = np.zeros(W.shape, dtype=np.int8); sc = scale
for i in range(cin):
w = W[:, i]; d = Hinv[i, i]
qi = np.clip(np.round(w / sc), -127, 127); q = qi * sc
Qi[:, i] = qi.astype(np.int8)
W[:, i:] -= np.outer((w - q) / d, Hinv[i, i:])
return Qi
new_nodes, new_inits = [], []
for (n, ws, W, vt, tn) in linears:
Wg = W if vt else W.T # -> [out, in]
scale = np.maximum(np.abs(Wg).max(axis=1) / 127.0, 1e-9).astype(np.float32) # per-output [out]
Qi = gptq(Wg, Hs[n.name], scale) # [out, in] int8
inits[ws].CopyFrom(numpy_helper.from_array(Qi if vt else Qi.T, ws))
pfx = n.name.strip("/").replace("/", "_"); qax = 0 if vt else 1
new_inits += [helper.make_tensor(f"{pfx}_wsc", TensorProto.FLOAT, [scale.size], scale.tolist()),
helper.make_tensor(f"{pfx}_wzp", TensorProto.INT8, [scale.size], [0] * scale.size)]
dq = f"{pfx}_wdq"
new_nodes.append(helper.make_node("DequantizeLinear", [ws, f"{pfx}_wsc", f"{pfx}_wzp"], [dq], name=f"{pfx}_DQw", axis=qax))
if vt:
for i, inp in enumerate(tn.input):
if inp == ws: tn.input[i] = dq
else: n.input[1] = dq
g.initializer.extend(new_inits); g.node.extend(new_nodes)
avail = {i.name for i in g.initializer} | {i.name for i in g.input} | {""}
order, rem = [], list(g.node)
while rem:
nx, prog = [], False
for nd in rem:
if all(i in avail for i in nd.input): order.append(nd); [avail.add(o) for o in nd.output]; prog = True
else: nx.append(nd)
rem = nx
if not prog: raise RuntimeError("topo stuck")
del g.node[:]; g.node.extend(order)
for f in (OUT, OUT + ".data"):
if os.path.exists(f): os.remove(f)
onnx.save(m, OUT, save_as_external_data=True, all_tensors_to_one_file=True, location=os.path.basename(OUT) + ".data", size_threshold=1024)
print(f"GPTQ int8 on {len(linears)} linears -> {OUT}", flush=True)