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[Refactor] (P13 W5 S2): MG_Backend/DirectGLES's record-arm guards name MOBILEGL_BUILD_RECORD_ARM.

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swung0x48
2026-10-06 10:51:25 -04:00
parent 2a8bb7e659
commit 036d1ac36e
8 changed files with 229 additions and 229 deletions
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MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
+10 -10
View File
@@ -32,7 +32,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
return draw == EGL_NO_SURFACE && read == EGL_NO_SURFACE && ctx == EGL_NO_CONTEXT;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// ID-54 / ID-67 (v1, under ID-52/ID-59's grant for this file). Which VIRTUAL (dpy, draw,
// read, ctx) the process's one native ES context is currently bound FOR, on the apply
// thread. DirectGLES has one native context and one native surface (g_Context, g_Surface)
@@ -860,7 +860,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
Int maxSamples = 0;
const SizeT formatIndex = static_cast<SizeT>(logicalFormat);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// C6 / ID-52: read the ROLE's own cache. Under split that is the server's private backend
// (ActiveBackendFormatCaps), not pActiveBackendObject, which holds the client's mirror.
const FormatCapabilityCache* activeCaps = ActiveBackendFormatCaps();
@@ -962,7 +962,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
Bool BackendObject_DirectGLES::LatchIfGpuFaulted() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
return LatchIfGuiltyBeforeApply();
#else
return false;
@@ -1085,7 +1085,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
ResetEGLRuntimeState();
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// ID-54 / ID-67: as for the window surface - InitPbufferSurface bound natively. The pull
// arm below is the original statement, byte for byte (G1).
const Bool created = BackendObject::CreateEGLPbufferSurface(surface, width, height);
@@ -1139,7 +1139,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (!DirectGLES::ReleaseCurrent()) {
return false;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
NoteNativeContextGone();
#endif
return BackendObject::MakeEGLCurrent(dpy, draw, read, ctx);
@@ -1212,7 +1212,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (!BackendObject::MakeEGLCurrent(dpy, draw, read, ctx)) {
(void)DirectGLES::ReleaseCurrent();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
NoteNativeContextGone();
#endif
return false;
@@ -1267,7 +1267,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
void BackendObject_DirectGLES::ReleaseEGLResources() {
const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
DestroyEGLContext();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
NoteNativeContextGone();
#endif
m_suspendedWindowSurfaces.clear();
@@ -1295,7 +1295,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
m_suspendedWindowSurfaces.push_back(client);
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// The native binding moved onto the placeholder: the next make-current binds for real.
NoteNativeContextGone();
#endif
@@ -1327,7 +1327,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (surface == EGL_NO_SURFACE) return false;
native->second = surface;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
NoteNativeContextGone();
#endif
MGLOG_I("DirectGLES: %zu suspended window surface(s) rebuilt on server window %p (%ux%u)", suspended.size(),
@@ -1366,7 +1366,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// every object the client had built - which a multi-window client hit on its first closed
// popup.
(void)surface;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
NoteNativeContextGone();
#endif
}
MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+141 -141
View File
File diff suppressed because it is too large Load Diff
MobileGL/MG_Backend/DirectGLES/DirectGLES.h
+2 -2
View File
@@ -30,7 +30,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
Bool ReadTextureLevelTight(GLuint texture, TextureTarget target, TextureUploadTarget uploadTarget,
TextureInternalFormat logicalFormat, GLint level, const IntVec3& logicalExtent,
Bool sourceUsesImageCarrier, GLenum format, GLenum type, Vector<Uint8>& bytes);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
Bool ReadTextureImageWire(const MG_Pipe::MGPReadbackInfo& info, Vector<Uint8>& bytes);
// Whether the NATIVE texture currently holds `level` of `uploadTarget` at `logicalExtent`
// (glGetTexLevelParameteriv). False for a level the driver never allocated - one defined after
@@ -432,7 +432,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// native context already current on this thread IS that one - so the single-context world pays
// nothing for it. Called from the bind_context path on the apply thread.
Bool MakeNativeContextCurrentForBoundToken();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P14: the server's backend turn moved to the calling apply thread (ServerLoop.cpp's
// BackendTurnLock). Takes the backend's GL ownership for this thread and drops every
// binding shadow, which still describes the previous holder's native context.
MobileGL/MG_Backend/DirectGLES/Managers.cpp
+57 -57
View File
@@ -1378,7 +1378,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// The four hostBytes sites read the same in both builds. The non-split expansion is the
// ORIGINAL EXPRESSION, character for character - `raw - offset` - so a push or verify build
// compiles exactly what it compiled before R-11 and the split arm is the only new behaviour.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
#define MGL_SERVER_STAGED_ADOPT(res, width, bytes, offset, size) \
ServerStaged().Adopt(&(res), (width), (bytes), (offset), (size))
#define MGL_SERVER_STAGED_DROP(res) ServerStaged().Drop(&(res))
@@ -1403,7 +1403,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (start >= end || hostBase == nullptr) return;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
MGL_SERVER_STAGED_REQUIRE(resource, hostBase, start, end, "upload_range");
#endif
BindBufferId(TempBufferTarget, resource.id);
@@ -1980,7 +1980,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
auto* glesResource = static_cast<GLESBufferResource*>(resource.get());
if (glesResource->contextGeneration != g_bufferContextGeneration) {
glesResource->id = 0; // id belonged to a destroyed context
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
RetireT0Import(*glesResource); // P11 B2: its GL store died with that context
#endif
return;
@@ -1998,7 +1998,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
g_GLESFuncs.glDeleteBuffers(1, &glesResource->id);
glesResource->id = 0;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P11 B2: a T0 store's AHardwareBuffer goes only after a fence behind the delete.
RetireT0Import(*glesResource);
#endif
@@ -2105,7 +2105,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
void Ops_H_Respecify(MG_Pipe::MGPipeHandle res, const MG_Pipe::MGPResourceDesc& desc,
const void* initialBytes) {
auto* resource = FindBufferResourceForHandle(res);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P13 W4a (§1.4): ON MONOLITH'S RECORD ARM THE TWIN IS MINTED HERE, not lazily at
// the first draw. The record arm's readers have no frontend object to re-read a
// base from, so the base this call carries - the client's shadow, for an orphaning
@@ -2148,7 +2148,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
MGL_SERVER_STAGED_DROP(*resource);
resource->hostBytes = nullptr;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P8-C: whatever a shader wrote belonged to the store this call replaces.
resource->serverGpuWritten = false;
resource->contentSinceRespecify = false;
@@ -2171,7 +2171,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
resource->id = 0;
resource->immutableStorage = false;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P11 B2: a respecified T0 store ends here on the server's side too. Its
// AHardwareBuffer is released only after a fence behind the delete (or at once
// when the store's context is already gone) - never under a frame in flight,
@@ -2212,7 +2212,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
const SizeT offset = static_cast<SizeT>(MG_Pipe::MGPipeSubDataBufferOffset(record));
const SizeT size = static_cast<SizeT>(MG_Pipe::MGPipeSubDataBufferSize(record));
auto* resource = FindBufferResourceForHandle(res);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// R-11 / ID-52 item 3: under an ACTIVE TRANSPORT this record's bytes are the ONLY
// delivery of the buffer's content - the client sends no companion pointer and the
// server has no MappedData to fall back on. But the twin is created LAZILY at the
@@ -2310,7 +2310,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// ("these bytes, at this base") and the drain takes this mutex to lift them.
resource->hostBytes =
MGL_SERVER_STAGED_ADOPT(*resource, ResourceWidthOf(res), bytes, offset, size);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (size != 0) resource->contentSinceRespecify = true;
#endif
}
@@ -2373,7 +2373,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
const std::lock_guard<std::mutex> lock(resource->pendingMutex);
resource->hostBytes = MGL_SERVER_STAGED_ADOPT(*resource, ResourceWidthOf(res), bytes,
start, end - start);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (end > start) resource->contentSinceRespecify = true;
#endif
}
@@ -2406,7 +2406,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// The kill-switch arm's own Memcpy, and the one that passes
// GL_MAP_INVALIDATE_RANGE_BIT - i.e. the one that tells the driver the old
// bytes are dead. Bytes outside the staged coverage are exactly the ones
@@ -2433,7 +2433,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
void Ops_H_Readback(MG_Pipe::MGPipeHandle res, const MG_Pipe::MGPReadback& record) {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// An empty capture may conservatively request a writeback before
// any draw materialized this buffer. Resolve its staged resource
// exactly as a GPU consumer would, then return the real bytes.
@@ -2510,7 +2510,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// The shadow now matches the backend byte for byte; without this the next draw
// would see a newer serial and re-upload the readback over it.
resource->syncedChangeSerial = ResourceSerialOf(res);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P13 W4a: on monolith's record arm the base this twin reads IS the shadow the
// writeback just filled, so a whole-store readback is also the refresh
// SplitHostBytesForCpuRead would owe. (A copying store's copy is not the
@@ -3045,7 +3045,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
#endif // MOBILEGL_BUILD_DISAGGREGATED && __ANDROID__
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// ---- P5c (tx): the TEXTURE half of the resource family, staged server-side --------
//
// The buffer half's R-11 pattern (ServerStaged() above), for texture levels: the
@@ -3103,7 +3103,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// disaggregation did not compile. The narrower fix (guarding the macro block too) is wrong:
// that block also carries TextureDiagName and MGB_TEXTURE_RECORD_ARM_SELECTED, which the push
// flavour does need. Caught by the `flavours` gate step; see ID-124.
#endif // MOBILEGL_BUILD_DISAGGREGATED
#endif // MOBILEGL_BUILD_RECORD_ARM
// The inverse of MG_Pipe::MGPipeResourceTargetForTextureTarget, for the sync's
// target reads (ConvertTextureTargetToBackendGLEnum and MapToBackendTextureTarget
// both want the frontend enum).
@@ -3237,7 +3237,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
.Destroy = Ops_H_DestroyTracked,
.MapPersistent = Ops_H_MapPersistentTracked,
.UnmapPersistent = Ops_H_UnmapPersistent,
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
.TextureSubData = Ops_H_TextureSubData,
.TextureRespecify = Ops_H_TextureRespecify,
.TextureDestroy = Ops_H_TextureDestroy,
@@ -3683,7 +3683,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// allocator probe on a miss - and remembers the answer, which the minting overload
// was previously the only writer of. A null answer is deliberately never memoised
// (see the comment at HandleOf).
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c merge coordination (CONTRACT-P5C §3.1's named exemption): every caller of
// this function is a site whose handle-carrying records (set_shader_buffers /
// set_stream_output_targets) the client does not emit until sb, so the probe
@@ -3854,7 +3854,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P11 B2: the T0 half of the deferred-release drain, run right after it at both sync
// points (ProcessDeferredBufferReleases itself moves verbatim, G5). Retired imports whose
// fence signalled let go of their AHardwareBuffer; a deferred T0 destroy is retired once
@@ -3920,7 +3920,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
const auto* record = ResourceRecordOf(res);
if (record == nullptr) return false;
#if MOBILEGL_PIPE_VERIFY && !MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_PIPE_VERIFY && !MOBILEGL_BUILD_RECORD_ARM
MOBILEGL_ASSERT(!record->HasLiveHostWrites,
"MGPipeResourceRecord::HasLiveHostWrites is set, but this build has no producer "
"for it - P5 b1's producer is MGPSubData::HasLiveHostWrites and is split-only");
@@ -4003,7 +4003,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// fallback for the drains that have NO object (the readback flush), and it is
// nulled at both of those events.
const auto liveHostBase = [&resource, &bufferObject]() -> const Uint8* {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// M-2 / codex 3 / ID-52 item 3: under an ACTIVE TRANSPORT the server's staged
// copy (resource->hostBytes, filled by MGL_SERVER_STAGED_ADOPT in Ops_H_SubData /
// Ops_H_FlushRange) is the ONLY authoritative base. Preferring the frontend
@@ -4120,7 +4120,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// application ORPHANED the gap is its own undefined content and the upload is
// legal (ResourceContentIsDeclared, above). RequireCoverage is a no-op for the
// legacy arm's MappedData() and for a non-copying store.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (ResourceContentIsDeclared(res)) {
MGL_SERVER_STAGED_REQUIRE(*resource, liveHostBase(), 0, poolSize,
"pool_reuse_whole_store");
@@ -4152,7 +4152,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// D-N keeps this call here for P3a. It can queue ranges and move the record, so
// everything below is read AFTER it.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (hd, CONTRACT-P5C §3.8): under an active transport the frontend accessor is a
// layer-1 surface ("buffer-legacy-arm") and the client's own pre-verb
// persistent-map push is the only producer; the call is skipped outright. Under
@@ -4205,7 +4205,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// the last orphan". With no coverage and a clear bit the store is undefined by the
// application's own declaration and the upload stays a pure NULL reallocation.
const Bool shadowHasContent =
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
MG_Config::DataArmIsRecord()
? (record->Desc.HasDefinedContent != 0 ||
(ServerStaged().CopiesIntoServerStorage() ? ServerStaged().CoveredRunCount(resource) != 0
@@ -4226,7 +4226,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// the bytes it did not write are undefined by its own glBufferData(NULL) - the rule at
// ResourceContentIsDeclared. Round 2 refused that idiom and aborted six joint entries.
const auto requireWholeStoreCoverage = [&]() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (initialData != nullptr && record->Desc.HasDefinedContent != 0) {
MGL_SERVER_STAGED_REQUIRE(*resource, static_cast<const Uint8*>(initialData), 0,
size, "respecify_whole_store");
@@ -4933,7 +4933,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
return true;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// THE SAFETY ARGUMENT P4a MADE AND NEVER RAN (P3b/P4b espryt D1 slice 5).
//
// "Running the legacy arm" is a real answer in a monolith and a POSTPONED CRASH under a
@@ -5087,7 +5087,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
"MOBILEGL_PIPE_PUSH leaves kMGPipeSubsystemFramebuffer (bit 9) clear (or refuses "
"it) and MOBILEGL_PIPE_LEGACY_MEMOS=0 disables the pre-handle g_fboSynced* arm");
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord() &&
verdict != BufferImpl::PipeSubsystemArmVerdict::Handles) {
StopOnTransportWithoutRecordArm(
@@ -5132,7 +5132,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
"refuses it) and MOBILEGL_PIPE_LEGACY_MEMOS=0 disables the pre-handle texture "
"cheap-gate trio");
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord() &&
verdict != BufferImpl::PipeSubsystemArmVerdict::Handles) {
StopOnTransportWithoutRecordArm(
@@ -5168,7 +5168,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
"it) and MOBILEGL_PIPE_LEGACY_MEMOS=0 disables UnitSamplerLookupMemo's WeakPtr "
"arm and SamplerPassMemo's raw-pointer rows");
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord() &&
verdict != BufferImpl::PipeSubsystemArmVerdict::Handles) {
StopOnTransportWithoutRecordArm(
@@ -5197,7 +5197,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
"MOBILEGL_PIPE_PUSH leaves kMGPipeSubsystemPrograms (bit 12) clear and "
"MOBILEGL_PIPE_LEGACY_MEMOS=0 disables g_programTwinLookupMemo");
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord() &&
verdict != BufferImpl::PipeSubsystemArmVerdict::Handles) {
StopOnTransportWithoutRecordArm(
@@ -5478,7 +5478,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// MGPipeSlots().FindByLifetimeId, which is a hash lookup. HandleOf answers
// identically - the same allocator probe on a miss - and remembers the answer; a
// null answer is deliberately never memoised (SlotTables.h, at HandleOf).
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed twin resolution, named debt inside
// the scope - P3b/P4b rekeys the sampler-view registry onto handles.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -6357,7 +6357,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// recorded shadow base for such a resource read freed memory; hostBytes is nulled
// at adoption for the same reason, so the fallback below is a null and a refusal
// rather than a stale read.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
const Bool sourceGpuWritten =
MG_Config::DataArmIsRecord() && resource->serverGpuWritten;
if (sourceGpuWritten) {
@@ -6939,7 +6939,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
const MG_Pipe::MGPipeHandle rearmRes =
TextureResourceSubsystemEnabled()
? [&]() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed resolution, named
// debt inside the scope - P3b/P4b rekeys the registry.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -7038,7 +7038,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// A shared image's EGLImage lives exactly as long as the name it was bound to.
m_sharedImage = nullptr;
#endif
@@ -7162,7 +7162,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
static inline GLint s_skipImages = 0;
};
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
void ExerciseDefaultUnpackScopeForTesting() {
const ScopedDefaultUnpackState scope;
}
@@ -7850,7 +7850,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// read). Sites that were previously correct only because every writer of a handle-note happens
// to be transport-gated now say so themselves, so a future by-handle noter cannot quietly
// re-open ID-107's hole somewhere else.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
#define MGB_TEXTURE_RECORD_ARM_SELECTED() \
(MG_Config::DataArmIsRecord() && TextureResourceSubsystemEnabled())
#else
@@ -8008,7 +8008,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
StampViewSyncKeys(stateTextureObject);
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5e (tx2): see the declaration for the split between what the record answers and what
// the wire still cannot say about a view.
void BackendTextureObject::SyncTextureViewToBackendByRecord(
@@ -8552,7 +8552,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
pushedStorage->Desc.ImageBindableHint != 0 ||
(pushedStorage->Desc.BindMask & MG_Pipe::kMGPipeBindShaderImage) != 0;
if (pushedWantsImageBindableStorage && !m_imageBindableStorageRequired) {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5e (tx2), ruling 1's arm: under a transport the re-dirty half is a NAMED
// refusal at its entry (§5.2) instead of a walk of the client's level shadows;
// the push-monolith build keeps the frontend transition exactly as it is.
@@ -9458,7 +9458,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
region.Z + static_cast<Int32>(region.D)}};
}
} else
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// tx: with an active transport the rect list is the record's (the
// pendingUpload arm above) or nothing - the server's GPU-dirty mark
// is whole-level and has no scatter refinement to hand out, and the
@@ -9501,7 +9501,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
region.Z + static_cast<Int32>(region.D)}});
}
} else
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// With an active transport and no record behind the level, the
// server's own whole-level GPU-dirty mark is the whole story (the
// same reason the rect list above is not read here).
@@ -10041,7 +10041,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
#undef MGB_LEVEL_TEXEL_SIZE
#undef MGB_LEVEL_BYTE_SIZE
#undef MGB_LEVEL_TEXELS
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
#undef MGB_STAGED_TEXTURE_LIVE
#endif
@@ -10055,7 +10055,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
MG_Pipe::MGPipeHandle res = m_pushedSyncHandle;
if (MG_Pipe::MGPipeHandleIsNull(res)) {
if (!stateTextureObject) return nullptr;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed resolution, named debt inside the
// scope - the by-handle arm above is what retires it.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -10889,7 +10889,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
SharedPtr<TextureImpl::BackendTextureObject> backendTextureObject;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed twin resolution (and the mint on
// a first attach), named debt inside the scope - P3b/P4b rekeys the registry.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -10946,7 +10946,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
} else if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed twin resolution (and the mint on
// a first attach), named debt inside the scope - P3b/P4b rekeys the registry.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -11284,7 +11284,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// push-monolith arm keeps the frontend sync it had at f6cfcbd3, token for token,
// because tx2's record arm inside SyncMipmapsToBackend is itself selected by
// `Transport != Monolith` and cannot answer here.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord()) {
backendTextureObject->SyncMipmapsToBackendByHandle(surface.Res);
// From here on every draw, clear and blit into this framebuffer can write the
@@ -11373,7 +11373,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// GLContext (RecordError) and the by-handle form deliberately does not, because
// under a transport there is no application on this side to report it to. On the
// push-monolith arm there is, so the monolith arm keeps the object form.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord()) {
backendRenderbufferObject->SyncToBackendByHandle(surface.Res);
} else
@@ -11425,7 +11425,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// (the three-channel colour-renderable widening). GL answers such a read with 1.0, but
// the storage holds whatever the draw wrote there, so the readback has to overwrite it.
Bool IsAlphaWidenedFallbackReadAttachment() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord()) {
const auto* record = MG_Pipe::MGPipeApplier().ReadFramebuffer();
return record && IsAlphaWidenedColorSurface(record->ReadSurface);
@@ -11439,7 +11439,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
}
Bool IsFixedPointFallbackReadAttachment() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord()) {
const auto* record = MG_Pipe::MGPipeApplier().ReadFramebuffer();
return record && record->ReadSurface.Kind != MG_Pipe::kMGPipeSurfaceKindNone &&
@@ -11612,7 +11612,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// P5c (hd): with an active transport the handle is the caller's
// (m_pushedSyncHandle), never the client allocator's - see SyncToBackend.
const MG_Pipe::MGPipeHandle fbo =
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
MG_Config::DataArmIsRecord()
? m_pushedSyncHandle
:
@@ -11790,7 +11790,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// is never probed (T2). A null there means a caller reached this arm without a
// record, which the null-record refusal below names.
const MG_Pipe::MGPipeHandle fbo =
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
MG_Config::DataArmIsRecord()
? m_pushedSyncHandle
:
@@ -12072,7 +12072,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// Verify that the backend object's name and parameters match the frontend attachment state
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed twin resolution, named
// debt inside the scope - P3b/P4b rekeys the registry.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -12093,7 +12093,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
"Attachment texture level mismatch between GLES and state object.");
} else if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): frontend-keyed twin resolution, named
// debt inside the scope - P3b/P4b rekeys the registry.
const MG_Pipe::MGPipeFrontendKeyedRegistryScope frontendKeyedRegistry;
@@ -12242,7 +12242,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
fbo.Slot, fbo.Gen);
return;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// Kept in step for the monolith-glue overloads that still resolve their record
// through it (SyncReadBufferToBackend's push arm).
m_pushedSyncHandle = fbo;
@@ -13098,7 +13098,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// outside the frontend's array, which cannot be addressed at all.
Uint BoundImageUnitFormat(Int unit) {
if (unit < 0 || unit >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) return 0;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5e (fb, §5.4): the format-less image bake asks what format the APPLICATION
// named at this unit, and under a transport the record is the only statement of
// it - MGPImageView::InternalFormat is that same GLenum, copied by the client
@@ -15230,7 +15230,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// nine-clause rebuild condition reads on the handle arm; the clause COUNT does not
// shrink, its inputs move (D-H5).
if (ProgramSubsystemEnabled()) {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): MONOLITH GLUE ONLY. This is the frontend-keyed
// lookup the phase exists to retire, and it survives here for the reason
// ruling 1 (ID-81) gives: under Transport=monolith the push build keeps its
@@ -15582,7 +15582,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// the values are taken from the object, which in monolith are the very
// values the client content-addressed, so the picture stays right while
// the gap is visible rather than silent.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): the registration probe below resolves the
// sampler's handle by frontend identity - frontend-keyed twin resolution,
// named debt inside the scope - P3b/P4b rekeys the registry onto handles.
@@ -15838,7 +15838,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
const MG_Pipe::MGPipeResourceRecord* pushedRecord = nullptr;
if (TextureResourceSubsystemEnabled()) {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (G6, CONTRACT-P5C §5.4): the renderbuffer's handle is resolved by
// frontend identity below - frontend-keyed twin resolution, named debt inside
// the scope - P3b/P4b rekeys the registry onto handles.
@@ -16160,7 +16160,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// PipeTextureStorageRecordForRecord and CONTRACT-P5E.md §5.2.
const MG_Pipe::MGPipeResourceRecord* storage = PipeTextureStorageRecordForRecord(record);
if (storage == nullptr) return false;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// Never clean while bound to a shared image: see IsDrawSyncClean.
if (m_sharedImage != nullptr) return false;
#endif
MobileGL/MG_Backend/DirectGLES/Managers.h
+9 -9
View File
@@ -1150,7 +1150,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
GLESBufferResource* GetOrCreateBufferResourceForHandle(MG_Pipe::MGPipeHandle res);
GLESBufferResource* FindBufferResourceForHandle(MG_Pipe::MGPipeHandle res);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (hd): the staged-coverage assertion (StagedShadowStore::RequireCoverage) for a
// read of the server shadow outside the upload ladders - the indirect command-byte
// resolver. A no-op for a base that is not this resource's server shadow.
@@ -1324,7 +1324,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// conjunction in MultiDraw.cpp would satisfy in letter while giving the family two
// selectors that can drift apart. One definition, spelled at every site that reads it.
inline Bool VertexInputReadsRecords() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
return MG_Config::DataArmIsRecord() &&
VertexInputSubsystemEnabled();
#else
@@ -1366,7 +1366,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// Deletes GL buffers whose owning frontend objects died (possibly on a
// thread without a current ES context). Called from draw-time sync.
void ProcessDeferredBufferReleases();
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P11 B2: the T0 half of that drain - run right after it (retired AHardwareBuffers).
void ProcessDeferredT0Retires();
#endif
@@ -1828,7 +1828,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
} // namespace VertexArrayImpl
namespace TextureImpl {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// Drives the actual unpack save/restore helper without needing a texture upload.
void ExerciseDefaultUnpackScopeForTesting();
#endif
@@ -1966,7 +1966,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// parameter and sampler halves are unchanged and run on this name as on any other.
void SyncTextureViewToBackend(const SharedPtr<MG_State::GLState::ITextureObject>& stateTextureObject);
void StampViewSyncKeys(const SharedPtr<MG_State::GLState::ITextureObject>& stateTextureObject);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5e (tx2). THE VIEW ARM UNDER A TRANSPORT, and what it can and cannot answer.
//
// `Desc.ViewOf` names the storage owner BY HANDLE, so the STEADY question - "is my ES
@@ -2050,7 +2050,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
Bool IsDrawSyncClean(const MG_State::GLState::ITextureObject* t, Uint64 contextId,
Uint64 samplingGeneration) const {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// A shared image's texels move with its producer's presents, which nothing here
// sees: every use goes through SyncMipmapsToBackend's shared-image arm, which waits
// for a write that landed since the last one (SharedImageImpl::AcquireForSampling).
@@ -2365,7 +2365,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// glCopyImageSubData passes: it tries FollowCopyImageInStagedStore first and marks the store
// itself when that fails.
void NoteDriverSideTextureWriteByHandle(MG_Pipe::MGPipeHandle texture, Bool storeFollowsTheWrite = false);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P8-E (notes/p8/E.md): make glCopyImageSubData's texel-block move in the server's staged
// store too (StagedTextureStore::FollowCopy), so the destination level's bytes stay its
// content. Box in each image's own texel grid. False when the store cannot follow: a cube
@@ -2422,7 +2422,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// "one object is bound to BOTH bindings" skip, where the DRAW pass already did the
// attachment work and only glReadBuffer is READ-target-specific.
void SyncReadBufferToBackendByHandle(MG_Pipe::MGPipeHandle fbo);
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P5c (hd, CONTRACT-P5C §3.2): the framebuffer handle the CURRENT sync is keyed on.
// A caller applying a record sets it before SyncToBackend / SyncReadBufferToBackend,
// which then read the applier's record for THAT handle instead of probing the
@@ -3122,7 +3122,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// Same for gl_BaseVertex: only a program that reads it pays for the per-draw
// uniform write, and only such a program needs the reset after one.
Bool ReadsBaseVertex() const { return m_baseVertexUniformLocation >= 0; }
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// P8-C: same for the gl_BaseInstance uniform - which an indirect draw feeds from the
// command on the CPU only when the mg_IndirectParams view is absent.
Bool ReadsBaseInstance() const { return m_baseInstanceUniformLocation >= 0; }
MobileGL/MG_Backend/DirectGLES/MultiDraw.cpp
+2 -2
View File
@@ -179,7 +179,7 @@ namespace MobileGL::MG_Backend::DirectGLES::MultiDrawImpl {
BoundIndexBufferView ResolveBoundIndexBuffer(IndexBufferQuestion question, const char* entry) {
BoundIndexBufferView view;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (BufferImpl::VertexInputReadsRecords()) {
const auto& st = MG_Pipe::MGPipeApplier();
const MG_Pipe::MGPipeHandle res = BufferImpl::ResolveDrawIndexBufferFromRecord(st).Res;
@@ -293,7 +293,7 @@ namespace MobileGL::MG_Backend::DirectGLES::MultiDrawImpl {
// an empty slot, and not the arm test (ID-110: the arm was decided by the transport
// above, never inferred from a null).
Uint BoundDrawIndirectBufferId() {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (MG_Config::DataArmIsRecord()) {
const MG_Pipe::MGPipeHandle res = MG_Pipe::MGPipeApplier().VerbIndirectBuffer;
if (MG_Pipe::MGPipeHandleIsNull(res)) return 0;
MobileGL/MG_Backend/DirectGLES/Utils.cpp
+7 -7
View File
@@ -37,7 +37,7 @@
#include <regex>
namespace MobileGL::MG_Backend::DirectGLES {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// read_pixels writes server reply scratch. The client refuses PACK_BUFFER before
// emission, so no frontend pack binding can affect this destination.
static const SharedPtr<MG_State::GLState::BufferObject>& SplitReadbackPackBuffer() {
@@ -108,7 +108,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
SizeT targetIndex,
Bool caveat,
FormatCapability capability) {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
const FormatCapabilityCache* activeCaps = ActiveBackendFormatCaps();
if (activeCaps == nullptr || targetIndex >= kFormatCapabilityTargetCount) {
return false;
@@ -123,7 +123,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
return false;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
const FormatCapabilityCache& cache = *activeCaps;
#else
const FormatCapabilityCache& cache = pActiveBackendObject->GetFormatCapabilities();
@@ -171,7 +171,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
using namespace MobileGL::MG_Util::TextureFormatProcessor;
const GLenum requestedInternalFormat = MG_Util::ConvertTextureInternalFormatToGLEnum(internalFormat);
Flags<PixelFormatNormalizeOptionBit> options;
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (ActiveBackendFormatCaps() == nullptr || ShouldUseCaveatFormat(internalFormat, targetIndex)) {
#else
if (!pActiveBackendObject || ShouldUseCaveatFormat(internalFormat, targetIndex)) {
@@ -269,7 +269,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
// not be resolved yet - a probe run then would latch "cannot tell" as "clean"
// forever. Once the backend exists, the first narrow-format image this process
// creates runs the probe on a live context.
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (ActiveBackendFormatCaps() == nullptr) {
return false;
}
@@ -315,7 +315,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
if (!TargetRequiresRenderableFormat(targetIndex)) {
return false;
}
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
if (ActiveBackendFormatCaps() != nullptr && !ShouldUseCaveatFormat(internalFormat, targetIndex)) {
return false;
}
@@ -2362,7 +2362,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
static Bool StoreClientRows(SizeT dstPixelBytes, SizeT swapGroupSize, GLsizei width, GLsizei sliceHeight,
GLsizei sliceCount, void* pixels, Bool applyPackImageParams, FillRow&& fillRow) {
const auto& pixelPackBufferObject =
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
MG_Config::DataArmIsRecord()
? SplitReadbackPackBuffer() :
#endif
MobileGL/MG_Backend/DirectGLES/Utils.h
+1 -1
View File
@@ -13,7 +13,7 @@
#include <MG_Util/Texture/TextureFormatProcessor.h>
namespace MobileGL::MG_Backend::DirectGLES {
#if MOBILEGL_BUILD_DISAGGREGATED
#if MOBILEGL_BUILD_RECORD_ARM
// C6 / ID-52 / CONTRACT-P5 table 3's pActiveBackendObject row. The format-capability cache of
// THIS ROLE's backend. Under an active transport the server's own private
// BackendObject_DirectGLES owns the context on the apply thread, so a backend-internal format