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Merge branch 'worktree-agent-a7bc533bede191e68' into dev

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swung0x48
2026-07-16 16:37:58 -04:00
parent 249c1ca574 62a0ad5639
commit 3ca57068a8
6 changed files with 198 additions and 11 deletions
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MobileGL/MG_Backend/DirectGLES/Managers.cpp
+14 -11
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@@ -2722,6 +2722,20 @@ namespace MobileGL::MG_Backend::DirectGLES {
effectiveSpirv = &loweredSpirv;
}
// ESSL stage-matches uniform blocks by member precision, but SPIRV-Cross prints
// a RelaxedPrecision member as explicit "mediump" in the vertex stage and as
// UNQUALIFIED (mediump-by-default) in the fragment stage; after
// ForceSupporterOutput swaps the fragment header to highp, that member reads
// back as highp and the ES driver refuses to link ("definitions of uniform
// block ... do not match"). Strip the hint from block structs so both stages
// declare the member highp; nothing else about emission changes.
Vector<unsigned int> uboPrecisionSpirv;
if (MG_Util::ShaderTranspiler::ShaderCompiler::StripUboMemberRelaxedPrecisionForEssl(
*effectiveSpirv, uboPrecisionSpirv) &&
!uboPrecisionSpirv.empty()) {
effectiveSpirv = &uboPrecisionSpirv;
}
MG_Util::ShaderTranspiler::SpvcSession spvcSession(*effectiveSpirv,
MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
@@ -2732,17 +2746,6 @@ namespace MobileGL::MG_Backend::DirectGLES {
ResolveBackendEsslVersion());
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_TRUE);
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, SPVC_FALSE);
// Emit against highp default precision in every stage. SPIRV-Cross's fragment
// default is mediump, under which a RelaxedPrecision struct member prints with
// NO qualifier; ForceSupporterOutput later swaps the header to highp, silently
// flipping such members to highp. A uniform-block member that stays explicitly
// "mediump" in the vertex stage then mismatches, and the ES driver refuses to
// link ("definitions of uniform block ... do not match"). With highp defaults
// every relaxed member is printed with an explicit qualifier in both stages.
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES_DEFAULT_FLOAT_PRECISION_HIGHP,
SPVC_TRUE);
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES_DEFAULT_INT_PRECISION_HIGHP,
SPVC_TRUE);
spvcSession.SetOptions(options);