mirror of
https://github.com/MobileGL-Dev/MobileGL
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66 lines
5.3 KiB
Markdown
66 lines
5.3 KiB
Markdown
# Package c0e — the contract and the wire (P5e; lands first, inert)
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Read in this order, all of it: `PACKAGE-PREAMBLE-P5E.md`, `INTEGRATOR-DECISIONS-P5E.md`,
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`BRIEF-P5E.md` (§0, §1, §2 "c0e", §3, §6), `CONTRACT-P5E-draft.md` (all of it — you are landing it),
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then the scout reports your rows come from (`scout-S6.md` for the wait classes / knobs / caps bit,
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`scout-S5.md` for `set_shader_buffers`' encoding and bit 13, `scout-S4.md` for `set_program_bindings`
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/ `LinkStatus`, `scout-S3.md` for the image `Access` decode, `scout-S1.md` for `kDrawClientArrays`,
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`scout-S7.md` for the seam declarations). All are in `//wsl.localhost/Arch/home/swung/w7/notes/p5e/`.
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Your slug is `c0e`; your tree is `~/w7/p5e-c0e` (built, on branch `p5e/c0e` at `2fde7034`).
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## Deliverables (all inert: no behaviour changes; unit + integration-split + gens stay green; G1 0/0/0/0)
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1. `MobileGL/MG_Remote/CONTRACT-P5E.md` — the draft, edited into its landed form: apply the 19 rulings
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as decided in `INTEGRATOR-DECISIONS-P5E.md` (they mostly match the draft's recommendations),
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make every `file:line` resolve at the HEAD of your branch (run `gens`; the doc-citation lint covers
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`MG_Remote/CONTRACT-P5*.md`), remove "draft" wording, keep the voice of CONTRACT-P5C.
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2. `MobileGL/MG_Pipe/PipeCalls.def`: the `WaitClass` column on every row exactly as CONTRACT-P5E §2.2
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(kWaitNone / kWaitApplied / kWaitReply / kWaitPresent / kWaitByPredicate…), `SetProgramBindings`
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(opcode 80) appended in S4's shape. Extend the generator(s) that read the def (`scripts/gen_pipe.py`
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and whatever emits the wire/route/thunk tables — find them) so that `MGPipeWaitClassFor(op)` is
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generated, the new op has its codec layout / thunk / table slot / route row (null route, refused
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by name until pg lands), and every `--check` / `--self-test` stays green with the regenerated
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`MobileGL/MG_Pipe/generated/*.inc` committed. The ABI fingerprint (`SessionRings.h`) must change
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with the new opcode; pin it.
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3. `MobileGL/MG_Pipe/MGPipeTypes.h`: `kCapRunAheadApply` (bit 10, MGPCapBit), `MGPProgramBindings`
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+ its tail PODs, `MGPProgramDesc::LinkStatus` in the spare bytes, `kDrawClientArrays` draw flag,
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`kMGPipeMaxBufferBindingPoints` (84; pinned against `BufferState.h`'s constant where both are
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visible), `MGP_ASSERT_POD` sizes; `MGPipeValueTypes.h`: `MGPipeImageAccess` enum with
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encode/decode (the client encode in `ImageEmit.h` already exists — move/alias, do not duplicate).
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4. `MobileGL/MG_Pipe/MGPipe.h`: subsystem bit 13 (`kMGPipeSubsystemBufferBindings`), default mask
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`0x3fff`; `MG_Impl/Pipe/SetHashSuppressor.h`: the three `SetShaderBuffers` class slots;
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`MG_Impl/Pipe/Tracker.h`: bits 15-17 mapped to subsystem 13 (`MGPipeSubsystemForDirty`);
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`TrackerTest.cpp`'s bit table; `MG_Pipe/FieldOwnership.def` re-annotations (retiring phase P5e
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on the rows the brief names); `MG_Pipe/Coverage.def` rows as the contract lists.
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5. `MobileGL/Config.h` / `ConfigLoader.cpp`: `IpcTable::RunAhead` (`MOBILEGL_IPC_RUN_AHEAD`, default
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1, forced 0 under `PipeVerify`, logged in the IPC line), `IpcTable::PresentCredit`
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(`MOBILEGL_IPC_PRESENT_CREDIT`, default 1, range 1..8).
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6. Seam declarations in `MobileGL/MG_Pipe/PipeApply.h` (+ `.cpp` bodies that assert "not landed" by
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name, never silently succeed): `MGPipeApplierCurrentRecordIsBarriered()`,
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`MGPipeBarriered(op, payload, applierState)` (the static column half implemented here; the
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XFB/client-array halves read the fields the contract names), the sb applier fields
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(`BoundShaderBuffers[3]`, `Start/Count/WritableMask[3]`, `ShaderBuffersSerial`) and
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`MGPipeApplySetShaderBuffers` declaration, the pg fields on `MGPipeShaderCsoRecord`
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(`BlockBindings`, `SamplerUnits`, `StorageOverrides`, `BindingsSerial`, `LinkStatus`) and
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`MGPipeApplySetProgramBindings` declaration, the by-handle sync signatures the family packages
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implement (`SyncTextureToBackendByHandle`, `SyncMipmapsToBackendByHandle`, `ResolveVaoTwin(handle)`,
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`ResolveProgramTwin(handle)`, `ResolveTextureTwin(handle)`, the FBO/RBO `SyncToBackendByHandle`
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overloads) — declared where the brief says (Managers.h ranges) with asserting bodies, so every
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package compiles against the same names from day one.
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7. `MobileGL/MG_Backend/Init.cpp`: `kMGPipeP5eRunAheadReady = false` and the DirectGLES arm that
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will publish bit 10 only when it is true (Magma never); `MagmaPipeIdentityTest` pins no bit 10.
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8. `MG_Test/Pipe/PipeCatalogueTest.cpp`: sizes, opcode 80, the null route pin, the wait-class table
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(every row's class asserted against the contract table by name).
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9. `docs/Disaggregated/ROADMAP.md`: the P5e row (status "进行中", the package list, the exit gate)
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inserted after P5d; `CURRENT_STAGE_PROGRESS.md` §1 row + §6 next-step line. Keep the citation lint green.
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## Red-once (execute, revert, record)
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- Flip one row's `WaitClass` in the def without regenerating → `gen_pipe.py --check` red.
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- Change the `MGPProgramBindings` POD size → `PipeCatalogueTest` red.
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- Publish bit 10 on the Magma arm → `MagmaPipeIdentityTest` red.
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## Gate
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`build`, `unit`, `isplit`, `gens` green; `strict` unchanged vs base (record its marker list in the
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report as the baseline the later packages must shrink). Commit in sensible slices (contract; def +
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generators + generated; types; knobs; seams + tests; docs).
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