118 строки
3.9 KiB
C++
118 строки
3.9 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexD3D12X.cpp
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//
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// DirectXTex Auxilary functions for creating resouces from XboxImage containers
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// via the CreatePlacedResourceX API
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//
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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//-------------------------------------------------------------------------------------
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#include "DirectXTexP.h"
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#include "DirectXTexXbox.h"
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#if !(defined(_XBOX_ONE) && defined(_TITLE)) && !defined(_GAMING_XBOX)
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#error This module only supports Xbox exclusive apps
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#endif
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#ifdef _GAMING_XBOX
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#include <xmem.h>
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#endif
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using namespace Xbox;
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using Microsoft::WRL::ComPtr;
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namespace
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{
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//--------------------------------------------------------------------------------------
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// Default XMemAlloc attributes for texture loading
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//--------------------------------------------------------------------------------------
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const uint64_t c_XMemAllocAttributes = MAKE_XALLOC_ATTRIBUTES(
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eXALLOCAllocatorId_MiddlewareReservedMin,
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0,
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XALLOC_MEMTYPE_GRAPHICS_WRITECOMBINE_GPU_READONLY,
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XALLOC_PAGESIZE_64KB,
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XALLOC_ALIGNMENT_64K
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#ifdef _GAMING_XBOX
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, 0
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#endif
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);
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}
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//=====================================================================================
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// Entry-points
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//=====================================================================================
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//-------------------------------------------------------------------------------------
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// Create a texture resource
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT Xbox::CreateTexture(
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ID3D12Device* d3dDevice,
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const XboxImage& xbox,
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ID3D12Resource** ppResource,
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void** grfxMemory)
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{
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if (!d3dDevice || !ppResource || !grfxMemory)
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return E_INVALIDARG;
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*grfxMemory = nullptr;
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*ppResource = nullptr;
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if (!xbox.GetPointer() || !xbox.GetAlignment() || !xbox.GetSize() || xbox.GetTileMode() == c_XboxTileModeInvalid)
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return E_INVALIDARG;
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// Allocate graphics memory
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*grfxMemory = XMemAlloc(xbox.GetSize(), c_XMemAllocAttributes);
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if (!*grfxMemory)
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return E_OUTOFMEMORY;
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// Copy tiled data into graphics memory
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memcpy(*grfxMemory, xbox.GetPointer(), xbox.GetSize());
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// Create texture resource
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auto& metadata = xbox.GetMetadata();
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D3D12_RESOURCE_DESC desc = {};
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desc.Width = static_cast<UINT>(metadata.width);
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desc.Height = static_cast<UINT>(metadata.height);
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desc.MipLevels = static_cast<UINT16>(metadata.mipLevels);
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desc.DepthOrArraySize = (metadata.dimension == DirectX::TEX_DIMENSION_TEXTURE3D) ? static_cast<UINT16>(metadata.depth) : static_cast<UINT16>(metadata.arraySize);
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desc.Format = metadata.format;
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desc.Flags = D3D12_RESOURCE_FLAG_NONE;
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desc.SampleDesc.Count = 1;
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desc.SampleDesc.Quality = 0;
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desc.Dimension = static_cast<D3D12_RESOURCE_DIMENSION>(metadata.dimension);
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desc.Layout = static_cast<D3D12_TEXTURE_LAYOUT>(0x100 | xbox.GetTileMode());
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HRESULT hr = d3dDevice->CreatePlacedResourceX(
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reinterpret_cast<D3D12_GPU_VIRTUAL_ADDRESS>(*grfxMemory),
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&desc,
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D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE,
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nullptr,
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IID_GRAPHICS_PPV_ARGS(ppResource));
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if (FAILED(hr))
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{
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XMemFree(*grfxMemory, c_XMemAllocAttributes);
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*grfxMemory = nullptr;
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}
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return hr;
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}
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//-------------------------------------------------------------------------------------
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// Free allocated graphics memory
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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void Xbox::FreeTextureMemory(ID3D12Device* d3dDevice, void* grfxMemory)
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{
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UNREFERENCED_PARAMETER(d3dDevice); // used only for overload resolution
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if (grfxMemory)
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{
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XMemFree(grfxMemory, c_XMemAllocAttributes);
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}
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}
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