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[Fix] (Review): scope the sample mask to a multisample target, version the sampled-set memo on completeness, clamp the mask word count, give the multisample placeholder every numeric domain, unwind the fixup revert one pass at a time, and bound the validator log

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swung0x48
2026-08-27 13:03:51 -04:00
parent 9e52a0b23e
commit 02cc0ce83c
15 changed files with 615 additions and 87 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.h
+14 -7
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@@ -179,11 +179,17 @@ namespace MobileGL::MG_Backend::DirectVulkan {
static MG_State::GLState::ITextureObject* ResolveSamplerTextureRaw(
const MG_State::GLState::ProgramObject& program,
const ProgramFactory::VkProgramObject& programObj, Uint32 binding, Uint32 element);
SharedPtr<MG_State::GLState::ITextureObject> GetFallbackTexture(TextureTarget target) const;
// The multisample arm of GetFallbackTexture. Separate object per target and no upload
// path: a multisample image cannot be written by a transfer, so its texels stay undefined
// - which is what GL promises for a texelFetch on an incomplete multisample texture.
SharedPtr<MG_State::GLState::ITextureObject> GetFallbackMultisampleTexture(TextureTarget target) const;
// `numericDomain` is the sampler's class, and it matters only for the multisample arm -
// see GetFallbackMultisampleTexture for why the single-sampled fallback can ignore it.
SharedPtr<MG_State::GLState::ITextureObject> GetFallbackTexture(
TextureTarget target, SamplerNumericDomain numericDomain) const;
// The multisample arm of GetFallbackTexture. One object per (target, numeric domain) and
// no upload path: a multisample image cannot be written by a transfer, so its texels stay
// undefined - which is what GL promises for a texelFetch on an incomplete multisample
// texture - and it cannot carry MUTABLE_FORMAT, so its format has to match the sampler's
// class outright rather than being reinterpreted at view time.
SharedPtr<MG_State::GLState::ITextureObject> GetFallbackMultisampleTexture(
TextureTarget target, SamplerNumericDomain numericDomain) const;
// ---- placeholders for UNBOUND image-backed descriptors -------------------------
// GL lets a program declare `samplerBuffer`, `imageBuffer` or `image2D` and bind nothing
// to the unit it names: the fetch is then undefined (GL 4.6 core 8.9 for an incomplete
@@ -297,8 +303,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
VkTextureManager* m_textureManager = nullptr;
VkSamplerManager* m_samplerManager = nullptr;
mutable SharedPtr<MG_State::GLState::ITextureObject> m_fallbackTexture2D;
mutable SharedPtr<MG_State::GLState::ITextureObject> m_fallbackTexture2DMultisample;
mutable SharedPtr<MG_State::GLState::ITextureObject> m_fallbackTexture2DMultisampleArray;
// Keyed by (arrayed, numeric domain); see GetFallbackMultisampleTexture. Lazily populated,
// never evicted - at most six tiny 1x1 images - and torn down with the manager.
mutable UnorderedMap<Uint32, SharedPtr<MG_State::GLState::ITextureObject>> m_fallbackMultisampleTextures;
// See AcquireUnboundTexelBufferView / GetUnboundStorageImageTexture. Both are lazily
// populated, never evicted (a program's declared formats are a fixed, tiny set) and torn
// down with the manager. The texel views are keyed by format AND by storage-vs-sampled