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swung0x48 c7e36986e7 [Fix] (ShaderTranspiler, DirectVulkan, MG_IntegrationTest): patch both of iterationRP's under-declared subgroup scratch arrays 
The previous commit's fingerprint was pinned to one array's incidental
dimensions - workgroup exactly 32x16x1, element exactly vec2, length
exactly 32 - which is the auto-exposure reduction and nothing else. The
pack ships the same idiom twice:

  - auto-exposure:  32x16 (512 invocations), shared vec2 prefixSumCache[32]
  - RTW warp:       1024 invocations,        shared float prefixSumCache[64]

so the warp kept writing 128 subgroups into 64 entries on an 8-lane
device and the retrace stayed bit-identically wrong (ssim 0.027902).

Key the fingerprint on the pack's idiom instead of one array's shape: a
workgroup array of 32-bit floats indexed by gl_SubgroupID, fed by a
subgroup scan, whose declared length is below ceil(invocations / native
width). Three properties keep that a targeted repair rather than a
general array resizer:

  - the index must BE gl_SubgroupID (through OpCopyObject, a signedness
    OpBitcast, or a spill whose every store is that id), so an index
    masked or clamped into range is left alone;
  - the >= 16-lane early-out is retained, so every module on the devices
    the pack was written for passes through byte-identical;
  - growth is certified against maxComputeSharedMemorySize using a
    natural-alignment layout model, and declined outright when a
    declaration cannot be sized, so a patched module can never fail
    pipeline creation where the original would not have.

Verified against the shaders the CI trace actually contains: of the 14
compute modules in the fixture exactly these two change, the other
twelve are byte-identical, and all fourteen pass spirv-val. The
integration scenario grows a second case for the 1024-invocation shape;
both abort with heap corruption when the patch is disabled.
 2026-08-19 16:36:06 -04:00
swung0x48 d8576a2ed3 [Fix] (DirectVulkan, ShaderTranspiler, MG_IntegrationTest, SelfTest, TraceReplay): use native subgroups and patch iterationRP's under-declared scratch 
iterationRP's Program 203 declares shared vec2 prefixSumCache[32] for a
512-invocation workgroup indexed by gl_SubgroupID; any device narrower
than 16 lanes partitions into more than 32 subgroups and the pack writes
shared memory out of bounds (heap corruption on lavapipe's CPU
rasterizer, ssim 0.028 on the CI retrace). Fix it where the fault lies -
in the fixture - and keep the GL contract sound everywhere else:

- FixIterationRPSubgroupScratchPass: fingerprint-gated SPIR-V pass that
  grows exactly that array to ceil(invocations/width) entries on sub-16-lane devices; every other module passes through byte-identical.
- DeriveNumSubgroupsPass stays default-on for the Adreno topology bug
  and is made spec-sound: pipelines request REQUIRE_FULL_SUBGROUPS
  whenever the workgroup shape makes the flag legal (computeFullSubgroups
  enabled, local_size_x a multiple of the native width, subgroup count
  within maxComputeWorkgroupSubgroups).
- EmulateSubgroupsPass: 32-lane virtual-subgroup lowering kept in-tree
  as a last resort, enabled only by MOBILEGL_MAGMA_EMULATE_SUBGROUP=1 on
  devices with no native subgroup support; fails closed on extended
  subgroup instructions and on modules whose added scratch would exceed
  maxComputeSharedMemorySize.
- IterationRPFirstReductionScenario skips gracefully outside the pack's
  16..256-lane source domain; the new IterationRPScratchFixScenario runs
  the fixture-shaped reduction on any width and asserts the exact
  width-independent total. DriverPost keeps reporting FAIL on
  out-of-domain devices.
- Program203 -> IterationRP rename throughout; the per-trace
  num_subgroups_quirk plumbing is removed from the trace replayer, JNI
  chain, and CI workflows.
 2026-08-19 09:48:11 -04:00
swung0x48 2b6c2b561c [Fix, Test] (DirectVulkan, ShaderTranspiler, TraceReplay): derive NumSubgroups behind opt-in quirk 2026-08-18 22:31:57 -04:00
swung0x48andClaude Fable 5 12c94111b5 [Fix, Test] (DirectVulkan, SelfTest, MG_IntegrationTest, TraceReplay): snapshot sampler/image feedback and add Program 203 diagnostics 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
 2026-08-18 03:04:09 -04:00
swung0x48 7769156cfc [Fix, Test] (ShaderTranspiler, WGL, TraceReplay): remove subgroup pack quirks and tune iterationRP 2026-08-17 01:55:17 -04:00
swung0x48 0ecfdff4e7 [Fix, Test] (MG_State, MG_Util, DirectVulkan, MG_Test): replay narrow-subgroup reductions correctly 2026-08-16 13:33:01 -04:00
swung0x48 6df5a6137f [CI] (trace-replay): run iterationRP only on DirectVulkan 2026-08-16 11:09:56 -04:00
swung0x48 b3794f4e6a [Feat] (MG_Impl, MG_State, MG_Util, DirectGLES, DirectVulkan, MG_Test): implement ARB_clear_buffer_object correctly 2026-08-16 01:12:28 -04:00
swung0x48 14d3901d30 [Chore, Test] (MG_State, MG_Util, DirectGLES, DirectVulkan): make SPIR-V validation task-local 2026-08-15 22:58:28 -04:00
swung0x48 d4766513e4 [Fix, Test] (DirectVulkan): replay Photon descriptor pressure correctly 2026-08-15 22:35:39 -04:00
swung0x48 72dc7aa6aa [Chore] (MG_Config, MG_State, MG_Util): gate SPIR-V validation at startup 2026-08-15 22:35:39 -04:00
swung0x48 9d1b280375 [Fix, Test] (MG_Util, MG_Test): rename Photon-conflicting MSL identifiers 2026-08-15 09:40:13 -04:00
swung0x48 8acd885594 [Fix, Test] (DirectVulkan): preserve viewport-index program metadata 2026-08-15 09:40:13 -04:00
swung0x48 10ff5e2b18 [Fix, Test] (DirectGLES, DirectVulkan): advertise indirect draw capabilities accurately 
- advertise GL_ARB_draw_indirect when supported
- gate GL_ARB_base_instance on complete non-zero firstInstance semantics
- synchronize Driver POST reporting
- add capability and extension-advertisement regression tests
 2026-08-15 06:30:44 -04:00
swung0x48 a6e52476f3 [Chore] (CMake): skip embedded SPIRV-Tools executables 2026-08-15 05:48:41 -04:00
swung0x48 0deff52a1b [Fix, Test] (DirectVulkan, trace-replay): replay quarter-turn surfaces correctly 2026-08-13 06:45:28 -04:00
swung0x48 50fefca959 Merge branch "feat/cts-viewport-array" into dev 2026-08-13 04:57:40 -04:00
swung0x48 42ad62b54c [Fix, Test] (MG_Util, MG_IntegrationTest): advertise the GL 4.3 VIEWPORT_BOUNDS_RANGE floor on a GLES driver that has no such query, instead of a range admitting no origin 2026-08-13 04:44:23 -04:00
swung0x48 f41403e227 [Feat, Test] (MG_Backend/DirectVulkan, MG_Test, MG_IntegrationTest): rasterize the viewport gl_ViewportIndex selects, instead of collapsing all sixteen onto viewport 0 2026-08-13 04:44:23 -04:00
swung0x48 5fbb17f6b9 [Feat, Fix, Test] (MG_State, MG_Impl, MG_Backend, MG_Test): give ARB_viewport_array real 16-element indexed state instead of eight stubs and a viewport-0 echo 2026-08-13 04:44:23 -04:00
swung0x48 92d8f7269b [Fix] (MG_IntegrationTest): drop the executable bit a copied-in scenario file carried 2026-08-13 04:29:23 -04:00
swung0x48 822e405c77 Merge branch "feat/vk-barrier-layer-ranges" into dev 2026-08-13 04:28:57 -04:00
swung0x48 b8233f9c4e [Fix, Test] (MG_Backend/DirectVulkan, MG_IntegrationTest): the barrier before every attachment transfer only ever moved layer 0, so a copy off a non-zero layer read a layout nothing had transitioned 2026-08-13 04:01:20 -04:00
swung0x48 595d140036 Merge branch "feat/cts-copyimage-magma-layers" into dev 2026-08-13 03:11:21 -04:00
swung0x48 b62d1f2078 [Fix, Test] (MG_Backend/DirectVulkan, MG_IntegrationTest): map a layered CopyImageSubData onto the axis each endpoint keeps its slices on, instead of copying slice 0 and calling it done 2026-08-13 02:49:57 -04:00
swung0x48 5e82ff968a Merge branch "feat/cts-rgb9e5-raw-transfer" into dev 2026-08-13 02:47:18 -04:00
swung0x48 6a80a82dd3 [Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_Backend/DirectVulkan, MG_Test): a packed texel whose client type already spells its storage word must cross glGetTexImage unencoded, or the RGB9_E5 shared exponent gets canonicalized 2026-08-13 02:41:37 -04:00
swung0x48 f9182a5ca3 Merge branch "fix/cts-copyimage-level-validation" into dev 2026-08-13 02:38:43 -04:00
swung0x48 f37b511fca [Fix, Test] (MG_Impl/GLImpl, MG_Backend/DirectVulkan, MG_Backend/DirectGLES, MG_Test, MG_IntegrationTest): a glCopyImageSubData to a mipmap level the texture never had is INVALID_VALUE, not a subresource handed to the driver 2026-08-13 02:28:55 -04:00
swung0x48 38027d21f8 Merge branch "feat/log-level-semantics" into dev 2026-08-13 02:19:26 -04:00
swung0x48 373aa44dd7 Merge branch "fix/cts-tess-ssbo-crash" into dev 2026-08-13 01:38:58 -04:00
swung0x48 96646df12e [Fix] (MG_Backend/DirectVulkan): review round - failure diagnostics take MGLOG_E, the once-per-patch-size success note takes MGLOG_D, and the per-draw refusal stays latched 2026-08-13 01:34:57 -04:00
swung0x48 f20b20e643 [Fix, Feat, Test] (MG_Backend/DirectVulkan, MG_Test): synthesize the pass-through tessellation control stage GL gives an evaluation-only program, and refuse the half-tessellated pipeline Mali dereferences null inside 2026-08-13 01:28:35 -04:00
swung0x48 2587814970 Merge branch "feat/cts-image-format-qualifier" into dev 2026-08-12 19:23:51 -04:00
swung0x48 43398e33e8 [Fix, Test] (MG_Util, MG_IntegrationTest): review round - anchor a clone only behind a real definition, decline the atomic-image shape, and say what the software lanes cannot falsify 2026-08-12 19:12:39 -04:00
swung0x48 b7557d6615 [Feat, Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_IntegrationTest): bake the bound image format into the ESSL a format-less image declaration needs 2026-08-12 18:56:31 -04:00
swung0x48 bce34d7fac Merge branch "feat/cts-followup-fp64-ds-imgbuf" into dev 2026-08-12 17:56:13 -04:00
swung0x48 f91857266f [Fix, Test] (MG_Backend/DirectGLES, MG_Test): the tessellation stages never got the flat qualifier an ES linker compares across both sides of every integer interface 2026-08-12 17:50:31 -04:00
swung0x48 49cb1be0fd [Fix, Test] (MG_Backend/DirectGLES, MG_IntegrationTest): a shader writing a buffer texture through an image unit left the CPU shadow stale, so every map and readback after it saw the old bytes 2026-08-12 17:50:31 -04:00
swung0x48 a51c68bb2c [Fix, Test] (MG_Util, MG_IntegrationTest): a 64-bit float constant was read as 32 bits, so every comparison against a round double became an epsilon test against zero 2026-08-12 17:50:25 -04:00
swung0x48 1c723a6cfc Merge branch "feat/cts-image-targets" into dev 2026-08-12 16:52:34 -04:00
swung0x48 44805bfa07 [Fix, Test] (MG_Util, MG_Backend/DirectVulkan, MG_IntegrationTest): adversarial review - the rewritten 1D-array image collided with a module's own 2D-array one and left an invalid duplicate type; pin the component order, keep the subject kinds in a truncated matrix 2026-08-12 16:49:59 -04:00
swung0x48 257fcbfd0b [Fix, Test] (MG_Util, MG_Backend/DirectVulkan, MG_IntegrationTest): review round - one module parse for the shaders with no 1D-array image, per-kind values the combined case can name, and the invariants two shared buffers rest on 2026-08-12 16:43:29 -04:00
swung0x48 2b46a3db96 [Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_Backend/DirectVulkan): the two image target kinds a compute dispatch could not read - 1D-array on ES, imageBuffer on Vulkan 2026-08-12 16:11:10 -04:00
swung0x48 0b36621069 Merge branch "feat/cts-diag-wave" into dev 2026-08-12 15:33:43 -04:00
swung0x48 9ee2e0a1db [Fix] (MG_Backend/DirectGLES): re-push the texture parameters a regenerated driver texture has lost, instead of trusting caches that outlived it 2026-08-12 15:22:39 -04:00
swung0x48 6b6623ae72 [Fix, Test] (MG_Backend, MG_Impl, MG_State): advertise the uniform-block and stencil-texturing strings a 4.0 context hides behind, forward DEPTH_STENCIL_TEXTURE_MODE to both backends, and stop a reserved transform feedback name passing for an object 2026-08-12 15:12:01 -04:00
swung0x48 a6e029734b [Test, Doc] (MG_IntegrationTest, MG_Backend/DirectGLES): review wave - stop the skip paths leaking their GL objects, normalise the clip enables a neighbouring scenario leaves behind, and state what the software lanes cannot falsify 2026-08-12 13:57:32 -04:00
swung0x48 e7d6bfddac [Fix, Test] (MG_Backend/DirectGLES, MG_State, MG_Util): publish the real default framebuffer depth/stencil format, forward the clip distance enables, and stop trusting a stale format probe for non-2D depth attachments 2026-08-12 13:34:39 -04:00
swung0x48 f2c879528f Merge branch "feat/es-ds-readback" into dev 2026-08-12 12:12:49 -04:00
swung0x48 e005c8b6cb [Test] (tools/trace_replay): drop the minecraft-26.2-main-menu fixture 2026-08-12 11:07:38 -04:00
swung0x48 535b5e3095 Merge branch "feat/cts-xfb-respec-compressed" into dev 2026-08-12 10:35:09 -04:00
swung0x48 1b05a84928 [Fix, Test] (MG_State, MG_Backend, MG_Impl, MG_Test): review wave - hand the mapping back instead of renewing it, retire an immutable ES store on respecify, and tag glTexStorage2D levels too 2026-08-12 10:32:39 -04:00
swung0x48 7ccb762936 [Fix, Test] (MG_Impl, MG_Test): a persistently mapped unpack buffer is a legal source for the compressed uploads too 2026-08-12 09:24:57 -04:00
swung0x48 442e7eec1c [Docs] (MG_IntegrationTest): the capture-buffer note described a bug that is fixed and pinned elsewhere now 2026-08-12 09:22:17 -04:00
swung0x48 2787d15706 [Fix] (MG_Impl): the compressed sub-image bounds check added two application-supplied ints 2026-08-12 09:19:50 -04:00
swung0x48 74ce58a6c7 [Fix] (MG_Backend/DirectGLES): a declined map renewal left the respecify pointing at immutable storage 2026-08-12 09:17:54 -04:00
swung0x48 bb122ebd4f [Test] (MG_IntegrationTest): the DSA enable-disable-attributes case, reassembled where it can be stepped through 2026-08-12 08:56:13 -04:00
swung0x48 9b0ed5b3af [Fix, Feat, Test] (MG_Impl, MG_Test): a specific compressed internalformat now tags the level it defines, and the compressed sub-image entry points stopped being stubs 2026-08-12 08:52:01 -04:00
swung0x48 0e31c1481b [Fix, Test] (MG_State, MG_Backend/DirectVulkan, MG_Backend/DirectGLES, MG_IntegrationTest): a respecified capture buffer left the transform feedback writing one store and the readback reading another 2026-08-12 08:42:45 -04:00
swung0x48 811f32760e [CI] (test): gate the retrace pipeline on the integration lane - build-retrace and trace-cases now need it 2026-08-12 08:41:19 -04:00
swung0x48 01381a0404 Merge branch "feat/cts-baseinstance-dsa-bufstorage" into dev 2026-08-12 08:23:57 -04:00
swung0x48 0f02b0fdb1 [Fix] (MG_Util): the POST base-instance row described an emulation that no longer exists 2026-08-12 08:22:26 -04:00
swung0x48 3be02abf47 [Fix] (MG_Impl): multisample renderbuffers ignored the integer formats own sample limit 2026-08-12 08:17:11 -04:00
swung0x48 f91d6b676c [Fix] (MG_Impl): the per-stage atomic-counter-buffer limits answered GL_INVALID_ENUM instead of their zero 2026-08-12 08:12:32 -04:00
swung0x48 1ebf191f94 [Fix, Test] (MG_Backend/DirectGLES, MG_Util): baseInstance reached the shader but never the vertex fetch 2026-08-12 08:12:27 -04:00
swung0x48 ccad803023 Merge branch "feat/cts-vab-current-attrib" into dev 2026-08-12 07:40:47 -04:00
swung0x48 21159caf31 [Fix, Test] (MG_Util, MG_Backend/DirectGLES): transform feedback captured nothing at all from an interface block 2026-08-12 07:38:50 -04:00
swung0x48 ea4819a21d [Fix, Test] (MG_State, MG_IntegrationTest): an array vertex input occupies one location per element, not one location in total 2026-08-12 07:36:12 -04:00
swung0x48 6b882b3ccf Merge branch "feat/fp64-demote-to-fp32" into dev 2026-08-12 06:42:23 -04:00
swung0x48 96bd36c50b [Docs] (README): the MOBILEGL_ADVERTISE_FP64 switch 2026-08-12 06:41:54 -04:00
swung0x48 46fbd837b3 [Fix, Test] (MG_State, MG_Impl, MG_IntegrationTest): a double uniform initializer no longer reads zero 2026-08-12 06:41:54 -04:00
swung0x48 796a57a115 [Feat, Test] (MG_Backend, MG_Util, MG_Impl): report the fp64 tier at startup, decline 64-bit vertex formats everywhere, advertise GL_ARB_gpu_shader_fp64 only on request 2026-08-12 06:25:35 -04:00
swung0x48 62a2dae5ba [Fix, Test] (MG_Impl, MG_State, MG_IntegrationTest): glUniform*d stores what the demoted shader reads 2026-08-12 06:20:11 -04:00
swung0x48 532836c058 [Feat, Test] (MG_Util): demote every 64-bit float in a shader to 32 bits, with the block layout re-derived 2026-08-12 06:11:50 -04:00
swung0x48 2fced2241b [Fix, Test] (MG_Util, MG_State, MG_Backend): the GL 4.3 vertex binding model - array vertex inputs, zero binding strides, instance divisors, and formats ES refuses 2026-08-12 05:36:00 -04:00
swung0x48 21b5fc2d92 Merge branch 'feat/cts-draw-parameters' into dev 2026-08-12 04:24:54 -04:00
swung0x48 1f753ab5fa [Test] (MG_IntegrationTest): the draw-parameter builtins, read back out of the shader the draw produced 2026-08-12 04:18:08 -04:00
swung0x48 3ed9501be5 [Fix, Feat, Test] (MG_Backend/DirectGLES, MG_Test): the draw-parameter builtins never reached the draws that carry them, and glMultiDrawArraysIndirectCount had no backend at all 2026-08-12 04:18:08 -04:00
swung0x48 7311251f30 [Fix] (MG_Util, MG_Backend/DirectVulkan): GL reads gl_BaseVertex as zero on a non-indexed draw where Vulkan's builtin hands over firstVertex 2026-08-12 04:18:07 -04:00
swung0x48 7625cf450d [Fix, Test] (MG_Impl, MG_IntegrationTest): a block count may not exceed its binding points, and an atomic-counter buffer size must survive division by them 2026-08-12 02:38:04 -04:00
swung0x48 450eb209b6 [Fix, Test] (MG_State, MG_Impl): the program interface of a separable program is its own first and last stage, not vertex and fragment 2026-08-12 02:38:04 -04:00
swung0x48 8c5c39b3c3 [Feat, Test] (MG_Impl): glBindTextures and glBindImageTextures were no-op stubs while GL_ARB_multi_bind was advertised 2026-08-12 02:38:03 -04:00
swung0x48 64a0ea397c [Perf] (CI): rewrite one rolling ccache entry per job on the default branch instead of saving one per run 2026-08-12 01:56:17 -04:00
swung0x48 205d837942 [Fix, Test] (MG_Backend/DirectGLES, MG_Util, CI): keep an explicit LOD constant under a new avoid flag - folding the bias uniform into it kills the ANGLE llvmpipe JIT 2026-08-12 01:42:55 -04:00
swung0x48 b5e9339c66 [Fix] (MG_Util): the unsupported-buffer-textures log tells a too-old driver apart from one whose entry point failed to resolve 2026-08-12 01:24:41 -04:00
swung0x48 e310e3e9ff [Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_Test): resolve buffer textures through the entry point the tier ships, not the ES 3.2 core name; bound the OES retarget to an exact extension name 2026-08-12 01:24:40 -04:00
swung0x48 a0bf4a83bc [Fix, Test] (MG_Util, MG_Backend/DirectGLES, MG_Test, MG_IntegrationTest): detect buffer-texture support, emit the directive the driver advertises, and name the capability when it is missing 2026-08-12 01:24:40 -04:00
swung0x48 97facf777b [Fix] (MG_Backend/DirectVulkan): act on a failed binding remap, bound the storage-block array count, and correct the decline rationale review found describing the reverted mechanism 2026-08-12 01:09:56 -04:00
swung0x48 5cfbb716c0 Merge remote-tracking branch 'origin/dev' into feat/sampler-array-descriptors 2026-08-12 00:58:20 -04:00
swung0x48 64c3411d70 [Perf] (CI): restore unchanged trace fixtures from the Actions cache keyed on their Git LFS pointer oid, downloading only on a miss 2026-08-12 00:49:47 -04:00
swung0x48 f3a0d9e0a3 [Refactor] (CI): move the trace fixture LFS pointer and verification helpers into a shared library 2026-08-12 00:49:47 -04:00
swung0x48 068786e812 [Fix, Test] (MG_Backend/DirectVulkan, MG_IntegrationTest): a declined descriptor must refuse the draw, not just leave the layout - a multi-dimensional sampler array otherwise faulted in the shader 2026-08-12 00:45:36 -04:00
swung0x48 8e7cc62c24 [Test] (MG_Benchmark): a standing UnorderedMap observatory - the container's own shapes, measured through the alias so a future swap re-runs the same suite 2026-08-12 00:40:57 -04:00
swung0x48 d2a36d65a3 [Fix, Test] (MG_Backend/DirectVulkan, MG_IntegrationTest): a sampler uniform array is one binding with many descriptors too - Magma wrote only element zero, and declines the multi-dimensional shape loudly 2026-08-12 00:31:37 -04:00
swung0x48 a020de76e3 Merge remote-tracking branch 'origin/dev' into feat/sampler-array-descriptors 2026-08-12 00:18:51 -04:00
swung0x48 574634adfa [Fix, Test] (MG_Backend/DirectVulkan, MG_IntegrationTest): let the binding remap accept the descriptor arrays that now have per-element paths, and reserve image-info scratch for them 2026-08-12 00:14:18 -04:00
swung0x48 e71d715e1a [Fix, Test] (MG_Backend/DirectVulkan, MG_Util, MG_Test): VkProgramObject move dropped stageSpirvDigests - a robin-hood swap would pair one program's modules with another's digests; sanity tests assert key identity, not iteration counts 2026-08-12 00:11:56 -04:00
swung0x48 7b946fd527 [Fix] (MG_Backend/DirectVulkan, MG_Util): RenderPassEntry needs move assignment - robin-hood probing swaps entries, so mapped types must be swappable 2026-08-12 00:11:55 -04:00
swung0x48 8f3ce5f5b7 [Fix] (MG_Backend/DirectGLES, MG_State, Docs): CopyImageSubData held a registry reference across a re-entrant sync; retarget container rationales at the new erase contract 2026-08-12 00:11:54 -04:00