Re-export under the get_model_schema contract; restructure to the MODEL_SPEC layout

.gitattributes

@@ -36,3 +36,6 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 PaddleHelpers_coreml.pte filter=lfs diff=lfs merge=lfs -text
 PaddleHelpers_vulkan.pte filter=lfs diff=lfs merge=lfs -text
 PaddleHelpers_xnnpack.pte filter=lfs diff=lfs merge=lfs -text
+coreml/paddle_helpers_coreml_int8.pte filter=lfs diff=lfs merge=lfs -text
+vulkan/paddle_helpers_vulkan_fp16.pte filter=lfs diff=lfs merge=lfs -text
+xnnpack/paddle_helpers_xnnpack_int8.pte filter=lfs diff=lfs merge=lfs -text

README.md

@@ -1,6 +1,7 @@
 ---
 license: apache-2.0
 ---
+
 # Introduction
 
 This repository hosts the **PaddleOCR document helper models** — page-orientation
@@ -14,19 +15,32 @@ not an OCR model on their own.
 If you'd like to run these models in your own ExecuTorch runtime, refer to the
 [official documentation](https://pytorch.org/executorch/stable/index.html) for setup instructions.
 
+## Repository layout
+
+```
+<backend>/config.json                    # per-backend spec
+<backend>/paddle_helpers_<backend>_<precision>.pte
+```
+
 ## Methods
 
 The fused `.pte` exposes **four methods** (the `.pte` is pure tensor→tensor; the client
 does normalization, `argmax`/`softmax`, grid-sampling and the decode loop). All methods are
-**fixed-shape** — the exact input shapes below are also declared in `config.json`; there are
-no shape-discovery companion methods on this model.
+**fixed-shape** — the exact input shapes below are also declared in `config.json`, and since
+nothing here is dynamic the model carries no `get_model_schema` overrides; a client reads the
+signatures straight from ExecuTorch's `MethodMeta`.
 
 | method | source model | input | output | purpose |
 |---|---|---|---|---|
 | `orientation` | [PP-LCNet doc_ori](https://huggingface.co/PaddlePaddle/PP-LCNet_x1_0_doc_ori_safetensors) | `[1,3,224,224]` | `logits[1,4]` | page rotation **0 / 90 / 180 / 270°** (argmax) |
 | `dewarp` | [UVDoc](https://huggingface.co/PaddlePaddle/UVDoc_safetensors) | `[1,3,712,488]` | `grid[1,2,45,31]` | sampling grid → `grid_sample` to unwarp a curved/folded page |
-| `table_encode` | [SLANeXt](https://huggingface.co/PaddlePaddle/SLANeXt_wired_safetensors) | `[1,3,488,488]` | `feat[1,256,96]` | encode a cropped table image (run **once**) |
-| `table_decode_step` | SLANeXt decoder | `(feat[1,256,96], hidden[1,256], onehot[1,50])` | `(probs[1,50], hidden[1,256])` | one **autoregressive** structure-token step |
+| `table_encode` | [SLANet_plus](https://huggingface.co/PaddlePaddle/SLANet_plus_safetensors) | `[1,3,488,488]` | `feat[1,256,96]` | encode a cropped table image (run **once**) |
+| `table_decode_step` | SLANet_plus decoder | `(feat[1,256,96], hidden[1,256], onehot[1,50])` | `(probs[1,50], hidden[1,256])` | one **autoregressive** structure-token step |
+
+The table decode loop is data-dependent, so it stays on the client: run `table_encode` once,
+then call `table_decode_step` per token, feeding the previous step's hidden state back in and
+the chosen token back as a one-hot. The first step takes an **all-zero** one-hot — the exported
+decoder embeds its own start token.
 
 ## Backends, precision & latency (warm)
 
@@ -49,3 +63,6 @@ the compatibility note in the
 [ExecuTorch GitHub repository](https://github.com/pytorch/executorch/blob/main/runtime/COMPATIBILITY.md).
 If you work with React Native ExecuTorch, the library constants guarantee compatibility with the
 runtime used behind the scenes.
+
+These models were exported with ExecuTorch 1.3.1 and **no forward compatibility** is
+guaranteed; older runtimes may not load them.

config.json

@@ -0,0 +1,3 @@
+{
+  "modelName": "paddle-helpers"
+}

coreml/config.json

@@ -0,0 +1,132 @@
+{
+  "$schema": "https://huggingface.co/software-mansion/react-native-executorch-spec/resolve/main/config.schema.json",
+  "model": "paddle_helpers",
+  "family": "paddleocr",
+  "capabilities": [
+    "classification"
+  ],
+  "backend": "coreml",
+  "license": "apache-2.0",
+  "variants": [
+    {
+      "file": "paddle_helpers_coreml_int8.pte",
+      "precision": "int8",
+      "quantized": true,
+      "default": true,
+      "size_bytes": 11939898,
+      "methods": {
+        "dewarp": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                712,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                2,
+                45,
+                31
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "orientation": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                224,
+                224
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                4
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_decode_step": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_encode": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                488,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            }
+          ]
+        }
+      }
+    }
+  ]
+}

coreml/paddle_helpers_coreml_int8.pte

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51148b0b5665d872673ce595fa03f631a508b8012cf341713333dd3682e417eb
+size 11939898

vulkan/config.json

@@ -0,0 +1,132 @@
+{
+  "$schema": "https://huggingface.co/software-mansion/react-native-executorch-spec/resolve/main/config.schema.json",
+  "model": "paddle_helpers",
+  "family": "paddleocr",
+  "capabilities": [
+    "classification"
+  ],
+  "backend": "vulkan",
+  "license": "apache-2.0",
+  "variants": [
+    {
+      "file": "paddle_helpers_vulkan_fp16.pte",
+      "precision": "fp16",
+      "quantized": false,
+      "default": true,
+      "size_bytes": 23114952,
+      "methods": {
+        "dewarp": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                712,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                2,
+                45,
+                31
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "orientation": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                224,
+                224
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                4
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_decode_step": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_encode": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                488,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            }
+          ]
+        }
+      }
+    }
+  ]
+}

vulkan/paddle_helpers_vulkan_fp16.pte

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:47c4d68fa04b34eb39e3be88a3094f402aa81044a6e4e793a7ece9d46f87a911
+size 23114952

xnnpack/config.json

@@ -0,0 +1,132 @@
+{
+  "$schema": "https://huggingface.co/software-mansion/react-native-executorch-spec/resolve/main/config.schema.json",
+  "model": "paddle_helpers",
+  "family": "paddleocr",
+  "capabilities": [
+    "classification"
+  ],
+  "backend": "xnnpack",
+  "license": "apache-2.0",
+  "variants": [
+    {
+      "file": "paddle_helpers_xnnpack_int8.pte",
+      "precision": "int8",
+      "quantized": true,
+      "default": true,
+      "size_bytes": 27753160,
+      "methods": {
+        "dewarp": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                712,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                2,
+                45,
+                31
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "orientation": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                224,
+                224
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                4
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_decode_step": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                50
+              ],
+              "dtype": "float32"
+            },
+            {
+              "shape": [
+                1,
+                256
+              ],
+              "dtype": "float32"
+            }
+          ]
+        },
+        "table_encode": {
+          "inputs": [
+            {
+              "shape": [
+                1,
+                3,
+                488,
+                488
+              ],
+              "dtype": "float32"
+            }
+          ],
+          "outputs": [
+            {
+              "shape": [
+                1,
+                256,
+                96
+              ],
+              "dtype": "float32"
+            }
+          ]
+        }
+      }
+    }
+  ]
+}

xnnpack/paddle_helpers_xnnpack_int8.pte

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+oid sha256:6db4ccb6c1fae046309665dbfd323556cf74a960a8baac5ad4bb5538960a0711
+size 27753160