| /* |
| * MVKResource.mm |
| * |
| * Copyright (c) 2014-2019 The Brenwill Workshop Ltd. (http://www.brenwill.com) |
| * |
| * 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. |
| */ |
| |
| #include "MVKResource.h" |
| #include "MVKCommandBuffer.h" |
| |
| |
| struct MVKBindDeviceMemoryInfo { |
| VkStructureType sType; |
| void* pNext; |
| union { |
| VkBuffer buffer; |
| VkImage image; |
| }; |
| VkDeviceMemory memory; |
| VkDeviceSize memoryOffset; |
| }; |
| |
| |
| #pragma mark MVKResource |
| |
| VkResult MVKResource::bindDeviceMemory(MVKDeviceMemory* mvkMem, VkDeviceSize memOffset) { |
| // Don't do anything with a non-zero offset into a dedicated allocation. |
| if (mvkMem && mvkMem->isDedicatedAllocation() && memOffset) { |
| _deviceMemory = nullptr; |
| return VK_SUCCESS; |
| } |
| _deviceMemory = mvkMem; |
| _deviceMemoryOffset = memOffset; |
| return VK_SUCCESS; |
| } |
| |
| VkResult MVKResource::bindDeviceMemory2(const void* pBindInfo) { |
| auto* mvkBindInfo = (const MVKBindDeviceMemoryInfo*)pBindInfo; |
| return bindDeviceMemory((MVKDeviceMemory*)mvkBindInfo->memory, mvkBindInfo->memoryOffset); |
| } |
| |
| // Returns whether the specified global memory barrier requires a sync between this |
| // texture and host memory for the purpose of the host reading texture memory. |
| bool MVKResource::needsHostReadSync(VkPipelineStageFlags srcStageMask, |
| VkPipelineStageFlags dstStageMask, |
| VkMemoryBarrier* pMemoryBarrier) { |
| #if MVK_IOS |
| return false; |
| #endif |
| #if MVK_MACOS |
| return (mvkIsAnyFlagEnabled(dstStageMask, (VK_PIPELINE_STAGE_HOST_BIT)) && |
| mvkIsAnyFlagEnabled(pMemoryBarrier->dstAccessMask, (VK_ACCESS_HOST_READ_BIT)) && |
| isMemoryHostAccessible() && !isMemoryHostCoherent()); |
| #endif |
| } |
| |