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[Fix] (MG_Backend, MG_Impl, ShaderTranspiler, MG_Test): support iterationRP custom images and storage format reinterpretation

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swung0x48
2026-07-20 02:35:30 -04:00
parent 8bc4808b1a
commit e5388c0e7e
33 changed files with 2382 additions and 88 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateFactory.cpp
+97 -3
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@@ -66,6 +66,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
Vector<SizeT> bindingBaseOffsets;
Vector<Uint32> bindingAttributeLocations;
Vector<Bool> bindingUsesClientMemory;
Vector<VertexStreamConversion> bindingConversions;
Uint32 unsupportedAttribMask = 0;
for (Uint32 location = 0; location < MG_State::GLState::VertexArrayObject::MAX_VERTEX_ATTRIBS; ++location) {
@@ -74,8 +75,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
continue;
}
const auto vkFormat = ToVkVertexFormat(attr.Type, attr.Size, attr.Normalized, attr.IsInteger, attr.IsBgra);
if (vkFormat == VK_FORMAT_UNDEFINED) {
const VkFormat sourceVkFormat =
ToVkVertexFormat(attr.Type, attr.Size, attr.Normalized, attr.IsInteger, attr.IsBgra);
if (sourceVkFormat == VK_FORMAT_UNDEFINED) {
MGLOG_E("Unsupported vertex attribute layout (location=%u, type=%s, size=%d): the array is "
"enabled but cannot be mapped to a VkFormat",
location, MG_Util::ConvertDataTypeToString(attr.Type).c_str(), attr.Size);
@@ -83,6 +85,33 @@ namespace MobileGL::MG_Backend::DirectVulkan {
continue;
}
VkFormat vkFormat = sourceVkFormat;
VertexStreamConversion conversion = VertexStreamConversion::None;
if (!SupportsVertexBufferFormat(vkFormat)) {
if (IsScaledIntegerVertexFormat(vkFormat)) {
const VkFormat fallbackFormat = ToFloat32VertexFormat(attr.Size);
if (fallbackFormat != VK_FORMAT_UNDEFINED && SupportsVertexBufferFormat(fallbackFormat)) {
vkFormat = fallbackFormat;
conversion = VertexStreamConversion::ScaledIntegerToFloat32;
MGLOG_W("Vertex attribute location=%u format=%d lacks "
"VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT; using float32 stream format=%d "
"(type=%s size=%d normalized=%s integer=%s)",
location, static_cast<Int>(sourceVkFormat), static_cast<Int>(vkFormat),
MG_Util::ConvertDataTypeToString(attr.Type).c_str(), attr.Size,
attr.Normalized ? "true" : "false", attr.IsInteger ? "true" : "false");
}
}
if (conversion == VertexStreamConversion::None) {
MGLOG_E("Unsupported Vulkan vertex format (location=%u, format=%d, type=%s, size=%d): "
"VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT is unavailable and no semantic fallback exists",
location, static_cast<Int>(sourceVkFormat),
MG_Util::ConvertDataTypeToString(attr.Type).c_str(), attr.Size);
unsupportedAttribMask |= (1u << location);
continue;
}
}
const SizeT attribByteSize = GetAttributeByteSize(attr.Type, attr.Size, attr.IsBgra);
if (attribByteSize == 0) {
MGLOG_E("Vertex attribute with unknown component size (location=%u, type=%s): the array is "
@@ -92,8 +121,28 @@ namespace MobileGL::MG_Backend::DirectVulkan {
continue;
}
const Uint32 stride =
const Uint32 sourceStride =
attr.Stride > 0 ? static_cast<Uint32>(attr.Stride) : static_cast<Uint32>(attribByteSize);
const Bool packedAttribute = attr.Type == DataType::Int2101010Rev ||
attr.Type == DataType::Uint2101010Rev;
const SizeT requiredAlignment = packedAttribute ? attribByteSize : GetComponentSize(attr.Type);
if (conversion == VertexStreamConversion::None && requiredAlignment > 1 &&
((sourceStride % requiredAlignment) != 0 || (attr.Offset % requiredAlignment) != 0)) {
// GL accepts arbitrary byte strides and offsets. Core Vulkan vertex fetches do not
// unless VK_EXT_legacy_vertex_attributes is available, so deinterleave this one
// attribute into a tightly packed transient stream without changing its format.
conversion = VertexStreamConversion::Repack;
MGLOG_W("Vertex attribute location=%u uses Vulkan-incompatible alignment "
"(offset=%zu stride=%u required=%zu); using a tightly packed stream",
location, attr.Offset, sourceStride, requiredAlignment);
}
Uint32 stride = sourceStride;
if (conversion == VertexStreamConversion::Repack) {
stride = static_cast<Uint32>(attribByteSize);
} else if (conversion == VertexStreamConversion::ScaledIntegerToFloat32) {
stride = static_cast<Uint32>(attr.Size * static_cast<Int>(sizeof(Float)));
}
const VkVertexInputRate inputRate =
(attr.Divisor == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
@@ -103,6 +152,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
bindingBaseOffsets.push_back(attr.Buffer ? attr.Offset : 0);
bindingAttributeLocations.push_back(location);
bindingUsesClientMemory.push_back(attr.Buffer == nullptr);
bindingConversions.push_back(conversion);
builder.AddBinding(binding, stride, inputRate);
builder.AddAttribute(location, binding, vkFormat, 0);
}
@@ -117,6 +167,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
entry.bindingBaseOffsets = std::move(bindingBaseOffsets);
entry.bindingAttributeLocations = std::move(bindingAttributeLocations);
entry.bindingUsesClientMemory = std::move(bindingUsesClientMemory);
entry.bindingConversions = std::move(bindingConversions);
entry.unsupportedAttribMask = unsupportedAttribMask;
entry.state = state;
entry.state.pVertexBindingDescriptions = entry.bindings.empty() ? nullptr : entry.bindings.data();
@@ -282,4 +333,47 @@ namespace MobileGL::MG_Backend::DirectVulkan {
const SizeT componentSize = GetComponentSize(type);
return componentSize == 0 ? 0 : componentSize * static_cast<SizeT>(size);
}
Bool VertexInputStateFactory::IsScaledIntegerVertexFormat(VkFormat format) {
switch (format) {
case VK_FORMAT_R8_USCALED:
case VK_FORMAT_R8_SSCALED:
case VK_FORMAT_R8G8_USCALED:
case VK_FORMAT_R8G8_SSCALED:
case VK_FORMAT_R8G8B8_USCALED:
case VK_FORMAT_R8G8B8_SSCALED:
case VK_FORMAT_R8G8B8A8_USCALED:
case VK_FORMAT_R8G8B8A8_SSCALED:
case VK_FORMAT_R16_USCALED:
case VK_FORMAT_R16_SSCALED:
case VK_FORMAT_R16G16_USCALED:
case VK_FORMAT_R16G16_SSCALED:
case VK_FORMAT_R16G16B16_USCALED:
case VK_FORMAT_R16G16B16_SSCALED:
case VK_FORMAT_R16G16B16A16_USCALED:
case VK_FORMAT_R16G16B16A16_SSCALED:
return true;
default:
return false;
}
}
VkFormat VertexInputStateFactory::ToFloat32VertexFormat(Int componentCount) {
switch (componentCount) {
case 1: return VK_FORMAT_R32_SFLOAT;
case 2: return VK_FORMAT_R32G32_SFLOAT;
case 3: return VK_FORMAT_R32G32B32_SFLOAT;
case 4: return VK_FORMAT_R32G32B32A32_SFLOAT;
default: return VK_FORMAT_UNDEFINED;
}
}
Bool VertexInputStateFactory::SupportsVertexBufferFormat(VkFormat format) const {
if (m_physicalDevice == VK_NULL_HANDLE || format == VK_FORMAT_UNDEFINED) {
return false;
}
VkFormatProperties properties{};
vkGetPhysicalDeviceFormatProperties(m_physicalDevice, format, &properties);
return (properties.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT) != 0;
}
} // namespace MobileGL::MG_Backend::DirectVulkan