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[Fix] (DirectVulkan): support UBO instance arrays as arrayed descriptors - uniform Block{...}b[N] reflected as one binding with descriptorCount=N, per-element GL block mapping, per-element buffer infos and dynamic offsets; non-UBO descriptor arrays now fail program creation cleanly instead of continuing corrupt

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swung0x48
2026-07-26 18:30:41 -04:00
parent 450215d12c
commit 63f0756644
4 changed files with 173 additions and 48 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.h
+10
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@@ -59,6 +59,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
Vector<DescriptorBindingKind> bindingKinds;
Vector<Uint32> dynamicBindings;
Vector<Int> uniformBlockIndexByBinding;
// Descriptor count per binding (1 except for UBO instance arrays, which occupy one
// binding with descriptorCount = N).
Vector<Uint16> bindingDescriptorCounts;
// Per-element GL uniform block indices for arrayed UBO bindings (count > 1);
// element 0 of a non-arrayed binding stays in uniformBlockIndexByBinding.
UnorderedMap<Uint32, Vector<Int>> arrayedUniformBlockIndicesByBinding;
Vector<String> samplerNameByBinding;
Vector<Int> samplerUniformLocationByBinding;
Vector<TextureTarget> samplerTextureTargetByBinding;
@@ -97,6 +103,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
bindingKinds = std::move(other.bindingKinds);
dynamicBindings = std::move(other.dynamicBindings);
uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
bindingDescriptorCounts = std::move(other.bindingDescriptorCounts);
arrayedUniformBlockIndicesByBinding = std::move(other.arrayedUniformBlockIndicesByBinding);
samplerNameByBinding = std::move(other.samplerNameByBinding);
samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);
@@ -141,6 +149,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
bindingKinds = std::move(other.bindingKinds);
dynamicBindings = std::move(other.dynamicBindings);
uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
bindingDescriptorCounts = std::move(other.bindingDescriptorCounts);
arrayedUniformBlockIndicesByBinding = std::move(other.arrayedUniformBlockIndicesByBinding);
samplerNameByBinding = std::move(other.samplerNameByBinding);
samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);