wip

modules/assets/private/shader.cpp

@@ -2,13 +2,18 @@
 
 namespace lt::assets {
 
+constexpr auto total_metadata_size =         //
+    sizeof(AssetMetadata::type)              //
+    + sizeof(AssetMetadata::version)         //
+    + sizeof(ShaderAsset::Metadata::type)    //
+    + sizeof(BlobMetadata::tag)              //
+    + sizeof(BlobMetadata::offset)           //
+    + sizeof(BlobMetadata::compression_type) //
+    + sizeof(BlobMetadata::compressed_size)  //
+    + sizeof(BlobMetadata::uncompressed_size);
+
 ShaderAsset::ShaderAsset(const std::filesystem::path &path): m_stream(path)
 {
-	constexpr auto total_metadata_size = //
-	    sizeof(AssetMetadata)            //
-	    + sizeof(Metadata)               //
-	    + sizeof(BlobMetadata);
-
 	ensure(m_stream.is_open(), "Failed to open shader asset at: {}", path.string());
 	const auto read = [this](auto &field) {
 		m_stream.read(std::bit_cast<char *>(&field), sizeof(field));
@@ -85,9 +90,10 @@ ShaderAsset::ShaderAsset(const std::filesystem::path &path): m_stream(path)
 		destination,
 		std::ios::binary | std::ios::trunc,
 	};
+
 	const auto code_blob_metadata = BlobMetadata {
 		.tag = std::to_underlying(BlobTag::code),
-		.offset = static_cast<size_t>(stream.tellp()) + sizeof(BlobMetadata),
+		.offset = total_metadata_size,
 		.compression_type = CompressionType::none,
 		.compressed_size = code_blob.size(),
 		.uncompressed_size = code_blob.size(),

modules/assets/private/shader.test.cpp

@@ -40,10 +40,15 @@ Suite packing = "shader_pack"_suite = [] {
 			dummy_blob.emplace_back(static_cast<std::byte>(idx));
 		}
 
-		const auto expected_size =          //
-		    sizeof(AssetMetadata)           //
-		    + sizeof(ShaderAsset::Metadata) //
-		    + sizeof(BlobMetadata)          //
+		const auto expected_size =                    //
+		    sizeof(AssetMetadata::type)               //
+		    + sizeof(AssetMetadata::version)          //
+		    + sizeof(ShaderAsset::Metadata::type)     //
+		    + sizeof(BlobMetadata::tag)               //
+		    + sizeof(BlobMetadata::offset)            //
+		    + sizeof(BlobMetadata::compression_type)  //
+		    + sizeof(BlobMetadata::compressed_size)   //
+		    + sizeof(BlobMetadata::uncompressed_size) //
 		    + dummy_blob.size();
 
 		ShaderAsset::pack(