| 92 | } |
| 93 | |
| 94 | bool GPUBufferVulkan::OnInit() |
| 95 | { |
| 96 | const bool useSRV = IsShaderResource(); |
| 97 | const bool useUAV = IsUnorderedAccess(); |
| 98 | |
| 99 | // Setup buffer description |
| 100 | VkBufferCreateInfo bufferInfo; |
| 101 | RenderToolsVulkan::ZeroStruct(bufferInfo, VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO); |
| 102 | bufferInfo.size = _desc.Size; |
| 103 | bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| 104 | bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT; |
| 105 | if (useSRV && !(_desc.Flags & GPUBufferFlags::Structured)) |
| 106 | bufferInfo.usage |= VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT; |
| 107 | if (useUAV || EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::RawBuffer | GPUBufferFlags::Structured)) |
| 108 | bufferInfo.usage |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT; |
| 109 | if (useUAV) |
| 110 | bufferInfo.usage |= VK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT; |
| 111 | if (EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::Argument)) |
| 112 | bufferInfo.usage |= VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT; |
| 113 | if (EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::Argument) && useUAV) |
| 114 | bufferInfo.usage |= VK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT; // For some reason, glslang marks indirect uav buffers (UpdateProbesInitArgs, IndirectArgsBuffer) as Storage Texel Buffers |
| 115 | if (EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::VertexBuffer)) |
| 116 | bufferInfo.usage |= VK_BUFFER_USAGE_VERTEX_BUFFER_BIT; |
| 117 | if (EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::IndexBuffer)) |
| 118 | bufferInfo.usage |= VK_BUFFER_USAGE_INDEX_BUFFER_BIT; |
| 119 | if (IsStaging() || EnumHasAnyFlags(_desc.Flags, GPUBufferFlags::UnorderedAccess)) |
| 120 | bufferInfo.usage |= VK_BUFFER_USAGE_TRANSFER_SRC_BIT; |
| 121 | |
| 122 | // Create buffer |
| 123 | VmaAllocationCreateInfo allocInfo = {}; |
| 124 | switch (_desc.Usage) |
| 125 | { |
| 126 | case GPUResourceUsage::Dynamic: |
| 127 | allocInfo.usage = VMA_MEMORY_USAGE_CPU_TO_GPU; |
| 128 | break; |
| 129 | case GPUResourceUsage::StagingUpload: |
| 130 | allocInfo.usage = VMA_MEMORY_USAGE_CPU_ONLY; |
| 131 | break; |
| 132 | case GPUResourceUsage::StagingReadback: |
| 133 | allocInfo.usage = VMA_MEMORY_USAGE_GPU_TO_CPU; |
| 134 | break; |
| 135 | case GPUResourceUsage::Staging: |
| 136 | allocInfo.usage = VMA_MEMORY_USAGE_CPU_COPY; |
| 137 | break; |
| 138 | default: |
| 139 | allocInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; |
| 140 | } |
| 141 | const VkResult result = vmaCreateBuffer(_device->Allocator, &bufferInfo, &allocInfo, &_buffer, &_allocation, nullptr); |
| 142 | LOG_VULKAN_RESULT_WITH_RETURN(result); |
| 143 | #if GPU_ENABLE_RESOURCE_NAMING |
| 144 | VK_SET_DEBUG_NAME(_device, _buffer, VK_OBJECT_TYPE_BUFFER, GetName()); |
| 145 | #endif |
| 146 | _memoryUsage = _desc.Size; |
| 147 | Access = 0; |
| 148 | |
| 149 | // Check if set initial data |
| 150 | if (_desc.InitData) |
| 151 | { |
nothing calls this directly
no test coverage detected