| /* |
| * MVKCodec.h |
| * |
| * Copyright (c) 2018 Chip Davis for CodeWeavers |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| #pragma once |
| |
| #include "MVKFoundation.h" |
| |
| #include <string> |
| |
| |
| #pragma mark Texture data codecs |
| |
| /** |
| * This is the base class implemented by all codecs supported by MoltenVK. |
| * Objects of this class are used to decompress texture data for upload to a |
| * 3D texture. |
| */ |
| class MVKCodec { |
| |
| public: |
| |
| /** Decompresses compressed texture data for upload. */ |
| virtual void decompress(void* pDest, const void* pSrc, const VkSubresourceLayout& destLayout, const VkSubresourceLayout& srcLayout, VkExtent3D extent) = 0; |
| |
| /** Destructor. */ |
| virtual ~MVKCodec() = default; |
| |
| }; |
| |
| /** Returns an appropriate codec for the given format, or nullptr if the format is not supported. */ |
| std::unique_ptr<MVKCodec> mvkCreateCodec(VkFormat format); |
| |
| /** Returns whether or not the given format can be decompressed. */ |
| bool mvkCanDecodeFormat(VkFormat format); |