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Source/Engine/Content/Assets/Shader.cpp

@@ -0,0 +1,62 @@
+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#include "Shader.h"
+#include "Engine/Core/Log.h"
+#include "Engine/Content/Upgraders/ShaderAssetUpgrader.h"
+#include "Engine/Content/Factories/BinaryAssetFactory.h"
+#include "Engine/Serialization/MemoryReadStream.h"
+
+REGISTER_BINARY_ASSET(Shader, "FlaxEngine.Shader", ::New<ShaderAssetUpgrader>(), false);
+
+Shader::Shader(const SpawnParams& params, const AssetInfo* info)
+    : ShaderAssetTypeBase<BinaryAsset>(params, info)
+{
+    ASSERT(GPUDevice::Instance);
+    _shader = GPUDevice::Instance->CreateShader(info->Path);
+    ASSERT(_shader);
+    GPU = _shader;
+}
+
+Shader::~Shader()
+{
+    Delete(_shader);
+}
+
+Asset::LoadResult Shader::load()
+{
+    // Special case for Null renderer that doesn't need shaders
+    if (GPUDevice::Instance->GetRendererType() == RendererType::Null)
+    {
+        return LoadResult::Ok;
+    }
+
+    // Load shader cache (it may call compilation or gather cached data)
+    ShaderCacheResult shaderCache;
+    if (LoadShaderCache(shaderCache))
+    {
+        LOG(Error, "Cannot load \'{0}\' shader cache.", ToString());
+        return LoadResult::Failed;
+    }
+    MemoryReadStream shaderCacheStream(shaderCache.Data.Get(), shaderCache.Data.Length());
+
+    // Create shader from cache
+    if (_shader->Create(shaderCacheStream))
+    {
+        LOG(Error, "Cannot load shader \'{0}\'", ToString());
+        return LoadResult::Failed;
+    }
+
+#if COMPILE_WITH_SHADER_COMPILER
+    RegisterForShaderReloads(this, shaderCache);
+#endif
+    return LoadResult::Ok;
+}
+
+void Shader::unload(bool isReloading)
+{
+#if COMPILE_WITH_SHADER_COMPILER
+    UnregisterForShaderReloads(this);
+#endif
+
+    _shader->ReleaseGPU();
+}