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[Feature] (Remote): serve concurrent shared-memory clients in isolated workers
2026-10-01 12:53:27 -04:00
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[Feature] (Remote): expose a package-neutral embedded display server API
2026-10-01 12:31:57 -04:00
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[Feature] (EGL): Wayland window surfaces, presented through wl_shm
...
A Wayland client's window is its own wl_surface, and what the compositor shows is the wl_buffer
attached to it - but the pixels of a MobileGL frame are drawn where the backend is, on a split
build in another process on another OS. So far a wl_egl_window was taken for an X11 window and
its client-side address sent to the Android server (EGL_BAD_NATIVE_WINDOW at best), and under
glvnd a Wayland display never reached this vendor at all.
A window on a Wayland display - asked for as EGL_PLATFORM_WAYLAND, or a wl_display recognised by
its first word being wl_display_interface - is now a window surface in the EGL state at the
wl_egl_window's size with a pbuffer of that size behind it in the backend, whatever
MOBILEGL_IPC_SURFACE says. At every swap the frame is read back out of the default framebuffer
through this library's own glReadPixels (the application's read framebuffer, pack buffer and pack
state put back as they were), its rows flipped and swizzled into a wl_shm buffer, and attached,
damaged and committed on the application's wl_surface. Three buffers rotate on their release
events, dispatched on an event queue of the surface's own. libwayland-client is loaded at run
time, so neither the build nor the library depends on it. EGL_KHR_platform_wayland and
EGL_EXT_platform_wayland are announced on Linux.
Measured: glmark2-wayland runs its build scene at 13 FPS (400x300) and the window shows the frame
under kwin. A window resize is not followed yet; the surface keeps its creation size.
2026-10-01 12:25:20 -04:00
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[Fix] (EGL): a second display is served, and glvnd gets its answers from one table
...
Two defects, both found by asking the client directly rather than by reading its log.
The backend refused to initialize any EGLDisplay but the first - "already bound to a different
EGLDisplay" - and the field it compared against has no reader anywhere else in the tree: the domain
rule was the whole of the rule. What it cost was a compositor, which asks for the display it will
draw into AFTER probing another one. The probe succeeded, the real display was refused, and the
caller reported the refusal one layer up as "no usable DRM render device" - a message that names
where it stopped, not why.
The second: glvnd asks a vendor for entry points from two places. getProcAddress is how it builds
its own static EGL table, and getDispatchAddress is how it answers eglGetProcAddress for every name
it does not know itself - which is every extension entry point, the device queries among them. This
side answered the second from a GL-only table, so an application asking for eglQueryDeviceStringEXT
got a null for a function the vendor implements.
2026-10-01 12:22:55 -04:00
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[Feature] (EGL): MobileGL serves EGL through libglvnd
...
On a system with libglvnd the libEGL.so.1 an application links is a dispatcher, not an
implementation, and the supported way to be the implementation it talks to is to be a vendor
library it loads and routes to. On this machine it is also the ONLY way that reaches a caller which
does not link EGL directly: kwin goes through libepoxy, which dlopen()s libEGL.so.1 and dlsyms its
entry points at startup, so a library injected with LD_PRELOAD is invisible to it however loudly it
is named - measured, with the client in kwin's maps and not one call into it.
So this is the vendor half of that ABI: __egl_Main answers glvnd with the entry points by name, the
platforms this implementation serves, and the device it is associated with - the render node of the
machine, because that is what lets a compositor match its own node to the display it is about to
draw into, and because glvnd drops a vendor that does not answer at all.
Two details are the difference between a vendor that is loaded and a vendor that is used. glvnd
requires setDispatchIndex to exist even when a vendor has nothing to record, which this one has -
its entry points are the implementation, they never re-enter glvnd. And a vendor must hand over ITS
OWN entry points: with default visibility a reference inside this library resolves against the whole
process, where another libEGL that loaded first wins. That is what -Bsymbolic-functions is for;
declaring the entry points protected says the same thing but does not compile against the platform
headers, which declare them default.
2026-10-01 12:22:55 -04:00
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[Feature] (EGL): the platform and device extensions are one list, spelled once
...
A vendor string and an eglQueryString answer have to agree, and they are read by two different
parties: the system's libglvnd reads the first to decide which vendor a platform request should be
routed to, and an application reads the second before it decides to make that request at all. Kept
apart they drift, and the drift has a signature - a library that is loaded, initialized, and never
called, while the caller reports that it found no provider for a function it never reached.
The list gains the device family for the same reason: a compositor asks which devices exist and
reads the DRM node off one before it asks for a display on it, so an implementation that answers
"no devices" is one it cannot use no matter how well the implementation draws.
2026-10-01 12:22:54 -04:00
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[Fix] (MG_Remote, P11 T0): the T0 POST also checks what the CPU writes through the held lock after the import and its first GPU use, in both directions - Mali-G1-Ultra passed the old single round (the import cleans the CPU cache) while its GPU saw 0/1024 post-import words, so T0 was granted and create-indirect-in-world-align1024 x Magma lost every Flywheel object on inproc/spawn (0.867/0.848); it now fails there and runs T2 (0.999984), and the Redmi passes both rounds and keeps T0
2026-09-30 10:21:46 -04:00
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[Merge] (trace): take dev's create-indirect-in-world-align1024 fixture (a derived trace replacing the original create-indirect capture) and register its documentation-only derived_from key
2026-09-30 10:21:46 -04:00
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[Test] (trace): replace the create-indirect fixture with minecraft-1.21.1-neoforge-create-indirect-in-world-align1024, a derived trace and not the original capture - the desktop capture bound Flywheel's scatter lists at 16-byte SSBO offsets that Adreno 830 and Mali's Vulkan driver (64) reject, and fixture_tools/realign_buffer_ranges.cpp moves the 1,270 binds off a 1024-byte boundary onto 1024-aligned slots (3,812 calls inserted, target call 504631 -> 508443, host SSIM unchanged to 9 digits on both backends)
2026-09-30 10:00:26 -04:00
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[Docs] (P8): CONTRACT-P8 (the rules P8 landed, each with its code anchor and its test), rulings ID-P8-14..18 (MD + MF and the create-indirect fixture's alignment, SE, SV, the dev merge, the wave 2 integration gate) and the debts wave 2 hands on
2026-09-30 07:55:50 -04:00
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[Merge] (P8): integrate wave 2 package MF - the push flush ladder gets dev's Adreno 830 queued-ring-copy guard (FlushPendingRangesFrom, create-instancing x Espryt x monolith 0.870 -> 0.99998 on the Redmi), and both G5 scripts pin the two reviewed ladder bodies under ID-P8-14
2026-09-30 07:12:50 -04:00
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[Merge] (P8): integrate wave 2 package SV - Magma's 3D native mip blit uses one layer, the depth/stencil mip decline gets its tally row, 1D depth mips decline by name, and the wire arm issues glDispatchComputeIndirect natively
...
# Conflicts:
# MobileGL/MG_IntegrationTest/CMakeLists.txt
2026-09-30 06:11:04 -04:00
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[Fix] (Espryt, P8-MF): the push arm's flush ladder keeps a partial range-invalidating map behind an upload-ring copy still queued on the store, as dev f973008c's pull arm does - FlushPendingRangesFrom's ring tier stamps ringCopyRetireSerial and InvalidateFlushAccessFor refuses tier 1 for a partial range while that copy is unretired (the whole-buffer orphan-map stays exempt); Adreno 830 loses the queued copy and create-instancing on the monolith arm drew terrain sections empty
2026-09-30 05:43:55 -04:00
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[Merge] (P8): integrate wave 2 package SE - the spawn/tcp default framebuffer publishes its surface to the client, the CPU mip arm declines on a driver-written base, D's case 3 runs on the Espryt split arms, the unmigrated-emulation name list is linted against its call sites, and the P8 notes' citations point at their content again
2026-09-30 05:24:11 -04:00
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[Test] (P8-SV): rename WireIndirectDispatchScenario's dispatch store member m_parameters -> m_groupCounts - gen_pipe_dirty_surface.py reads writes to shutter member names across all of MobileGL, and the name made NEW_PATCH_STATE's shutter look written outside its roots (self-test negative control 16 stopped tripping)
2026-09-30 04:42:06 -04:00
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[Merge] (P8): merge dev f973008c - the Espryt partial-flush fix for a queued ring copy on Adreno 830 (wave 2 MD), and dev's empty-binding uniform block fix deduplicated against P11's 7784d6bb (one code path), UnboundUniformBlockScenario registered on the split arms
2026-09-30 04:34:15 -04:00
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[Fix] (Espryt): a partial buffer flush no longer takes the range-invalidating map while an upload-ring copy into the same store may still be queued - Adreno 830 loses the queued copy, and create-instancing drew whole Embeddium terrain sections empty
2026-09-30 04:07:41 -04:00
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[Test] (P8-SE): the ForcedDs knob lanes run the default-framebuffer depth/stencil case again on all three arms (it was subtracted while red on spawn / tcp)
2026-09-30 03:55:01 -04:00
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[Fix] (Espryt, P8-SE): a spawn / tcp server publishes the default framebuffer's depth/stencil format (it has no frontend placeholder; the case leaves pending-fix for the three arms); the server CPU mip arm declines by name (generate-mipmap-store-declined) instead of filtering a store the driver wrote over, and E's refused-readback knob reaches it (CpuMipRefused. entries); WireIndirectDrawScenario case 3 runs on the Espryt split arms; copy-image-shadow-mirror goes and unmigrated_emulation_sites.py holds PipeCatalogueTest's list to the call sites
2026-09-30 03:44:29 -04:00
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[Test] (P8-SV): WireMipShapeScenario (3D chain on both backends x every arm, 1D depth decline on Magma split+spawn, the 3D chain under the validation layer inproc) and WireIndirectDispatchScenario (both backends x every arm, Magma gated .IndirectDispatch.), the MipmapDepthStencilAspect tally in F1's depth/stencil decline case, WireDeclinePeek, and the two parity rows
2026-09-30 03:44:03 -04:00
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[Fix] (Magma, P8-SV): the wire arm's 3D native mip blit uses one layer with the depth in its z offsets, the depth/stencil mip decline gets its WireDeclineTally row (MipmapDepthStencilAspect), the depth shader mip refuses 1D/1D-array/3D view types before the chain grows, and glDispatchComputeIndirect is issued as vkCmdDispatchIndirect from the wire store (P8-D's barrier rule, wdsp counter, two named declines)
2026-09-30 03:44:03 -04:00
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[Docs] (P8): wave 1 integrated - rulings ID-P8-5..13 (the survey, packages A-F, the integration gate, the wave 2 scope and the monolith defects left to P13), the survey note, open questions 9/11/15 answered, the debts and the P8 contract amendments, the P8 README table, PLAN-P8 wave 2 and the status page
2026-09-30 03:09:09 -04:00
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[Merge] (P8): integrate package E - a texture readback the Espryt driver refuses is answered from the split server's staged store, which now follows glCopyImageSubData (FollowCopy, client-box merge, sticky driver-written mark, named decline texture-readback-store-declined); CopyImageStoreReadbackScenario on both backends x every arm plus the extent-scoped StoreRead knob; the dead CopyImageSubData+RENDERBUFFER latch goes (census 79 -> 78)
2026-09-30 02:17:51 -04:00
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[Merge] (P8): integrate package D - the Magma wire arm issues glDraw*Indirect / glMultiDraw*Indirect[Count] natively from the wire store (vkCmdDraw*Indirect[Count]) instead of a CPU expansion behind a GPU-idle wait, with an INDIRECT_COMMAND_READ barrier once per shader write; windr[] PipeStats counters and WireIndirectDrawScenario on both backends x every arm
2026-09-30 01:28:20 -04:00
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[Merge] (P8): integrate package C - the Espryt split server refreshes its staged copy of a buffer a shader wrote before a CPU reader consumes it (storage/atomic/buffer-image marks, XFB captures into the copy; restart rewrite, multi-draw rebase, *IndirectCount, CPU-fed indirect fields, XFB scatter and fp64 narrowing read through SplitHostBytesForCpuRead); GpuWrittenDrawInputScenario (12 cases) on the Espryt split arms
2026-09-30 00:45:16 -04:00
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[Merge] (P8): integrate package B - Espryt glGenerateMipmap on the server: the record's generated window (BASE/MAX clip, B1) and RGB16F/RGB32F natively or on the server's CPU from the driver's level (B2), retiring both split generate-mipmap names; GenerateMipmapServerScenario on both backends x monolith/Split/Spawn/Tcp plus the forced-CPU arm
2026-09-30 00:01:29 -04:00
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[Merge] (P8): integrate package A - register the monolith-only cases on split/spawn/tcp (P8Coverage.cmake, five server-knob tcp supervisors), gate them with split_coverage.py and its exemption table, pin the tcp supervisor's Vulkan env
2026-09-29 23:37:12 -04:00
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[Docs] (P8-A): the note says what the census measured about the audit's 396 and DoublePrecision on tcp, and the knob-port comment names the split/verify one-port overlap
2026-09-29 23:18:08 -04:00
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[Fix] (Espryt, P8-E): a texture readback the driver refuses is answered from the server's staged store, which now follows glCopyImageSubData (FollowCopy, client-box merge, sticky driver-written mark, named decline); CopyImageStoreReadbackScenario on both backends x four arms plus the extent-scoped store-read knob; the dead CopyImageSubData+RENDERBUFFER latch goes (census 79 -> 78)
2026-09-29 22:43:02 -04:00
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[Fix] (Espryt, P8-C): the split server refreshes its staged copy of a buffer a shader wrote before a CPU reader consumes it - storage/atomic/buffer-image writes mark the server twin, XFB captures land in the copy, the restart rewrite, multi-draw rebase, *IndirectCount, CPU-fed indirect fields, XFB scatter and fp64 narrowing read through SplitHostBytesForCpuRead; GpuWrittenDrawInputScenario (12 cases) on the split arms
2026-09-29 22:38:33 -04:00
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[Test] (P8-F): give the mip shader-shape decline its own .ShaderMipDecline. tail - spawn_lane_parity.py holds each server-knob tail to exactly one case, and sharing .ShaderMip1. named two
2026-09-29 22:37:49 -04:00
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[Perf] (P8-D, Magma): the wire arm issues glDraw*Indirect / glMultiDraw*Indirect[Count] as vkCmdDraw*Indirect[Count] from the wire store instead of expanding them on the CPU behind a GPU-idle wait (create-indirect split: 321 waits / ~8 s -> 0), with an INDIRECT_COMMAND_READ barrier once per shader write; windr[] PipeStats counters, WireIndirectDrawScenario on both backends x every arm, notes/p8/D.md
2026-09-29 22:32:49 -04:00
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[Fix] (P8-A): the tcp lane's shared supervisor carries the Vulkan ICD and the three lavapipe iterationRP repairs, which Magma reads in the server - DirectVulkan.Tcp IterationRPProgram203 missed its golden output by one texel without them
2026-09-29 22:30:20 -04:00
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[Fix] (Espryt, P8-B): glGenerateMipmap on the server - the record's plan is the generated window (B1) and RGB16F/RGB32F generate natively or on the server's CPU from its own level (B2), retiring both split generate-mipmap names; GenerateMipmapServerScenario on both backends x monolith/Split/Spawn/Tcp plus the forced-CPU arm
2026-09-29 22:22:55 -04:00
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[Refactor] (P8-F): reclassify what our client cannot send - the multi-draw client-indices/instanced latches and Magma's client-vertex-array become ProtocolCorruption, Magma's mipmap-shader-format-or-shape becomes a named decline decided before the chain grows (with a knob-forced 3D case on split and spawn), and the three unpublished cap bits and the index-mirror sentinel are marked reserved
2026-09-29 22:15:29 -04:00
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[Test] (P8-A): register the monolith-only integration cases on the split, spawn and tcp arms (P8Coverage.cmake: 246 ambient cases, five server-knob lanes each on its own tcp supervisor), retire the ClientSideIndices and GuiBatch exclusions, and gate the rest with split_coverage.py and its exemption table
2026-09-29 22:14:31 -04:00
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[Docs] (Debts): the debt review - drop the closed E1, DualBlock and GetCaps-blobref rows (open question 24 closed, the blobref rule now a CONTRACT-P5 row-18 invariant), move the unmeasured M2 note to MEASUREMENTS, rewrite HyperOS / P11 RSS / named refusals, split the P12 row, merge the two CI rows, add three B2 rows, and mark each destination as needing a ruling or ready
2026-09-29 21:12:28 -04:00
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[Docs] (P11 B2): T0 is the default (the user, 2026-09-29) - CONTRACT-P11 B2's tier table, unset versus 0, the revision-5 fix-up; the knob rows in design/09
2026-09-29 20:15:29 -04:00
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[Test] (P11 B2): the unset knob on a stream and on a no-AHardwareBuffer shared-segment session - T2, no W/I fallback line, the fallback counted; the 0x80 ask accepted and 0x81 refused
2026-09-29 20:15:29 -04:00
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[Feat] (MG_Remote, P11 B2): T0 is the default - an unset MOBILEGL_IPC_ADOPT_TIER asks T0 (ask 0x80) and falls back to T2 quietly (MGLOG_D, still counted: client T0Fallbacks, server T0Refusals), while an explicit 0 keeps every named line; revision 5's schema comment and pin fixed up
2026-09-29 20:15:29 -04:00
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[Test] (Magma): UnboundUniformBlockScenario - a dispatch and a draw whose program declares a uniform block at an empty binding point (never bound, or its buffer deleted while bound) run and produce their fallback, and a buffer bound there afterwards is read, on both backends
2026-09-29 19:58:41 -04:00
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[Fix] (Magma): a uniform block declared at an empty binding point reads a zeroed block instead of dereferencing a null buffer
2026-09-29 19:55:53 -04:00
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[Docs] (P11 B2): CONTRACT-P11 - a buffer deleted while bound to an indexed point: the defect, the fix, Magma's behaviour before it, the tests with their red-once, and the G1 delta
2026-09-29 19:44:08 -04:00
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[Test] (P11 B2): DeletedBoundBufferScenario - a buffer deleted while bound to a storage, uniform, atomic-counter or transform-feedback point, its slot reused, then a dispatch and a draw, on monolith and Split/Spawn/Tcp for both backends; and the one-process arena pair as a regression
2026-09-29 19:32:19 -04:00
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[Fix] (Magma): a uniform block declared at an empty binding point reads a zeroed block on the monolith arm instead of dereferencing a null buffer, as the wire arm already does
2026-09-29 19:32:19 -04:00
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[Fix] (MG_State, P11 B2): glDeleteBuffers moves the bind-point generation of every indexed target it unbinds, and a transform-feedback object swap moves it too - the server's window no longer names a deleted buffer's handle after its slot is reused
2026-09-29 19:32:19 -04:00
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[Docs] (P11 B2): CONTRACT-P11 B2 - the Espryt split/spawn itest entries now pin MOBILEGL_ITEST_REQUIRE_GPU themselves
2026-09-29 19:12:46 -04:00
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[Test] (P11 B2): pin MOBILEGL_ITEST_REQUIRE_GPU=1 on every Espryt split/spawn itest environment, as the Magma and Espryt TCP lists do - a handshake-time Fatal fails there instead of skipping as a ctest pass
2026-09-29 18:57:04 -04:00
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[Docs] (P11 B2): CONTRACT-P11 B2 - M2 staying green on Espryt is consistent with the driver holding its own reference, not verified
2026-09-29 18:44:25 -04:00
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[Docs] (P11 B2): CONTRACT-P11 B2 - the tier table that replaces A1's shared-segment Fatal, revision 5, the Offer and its thread, POST, the staged-copy audit, lifetime, CPU reads, host and device gates with their red-once
2026-09-29 18:24:53 -04:00
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