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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* 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.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#include "GLTFResourceManager.hpp"
#include "DefaultRawMemoryAllocator.hpp"
#include "Align.hpp"
#include "GraphicsAccessories.hpp"
namespace Diligent
{
namespace GLTF
{
RefCntAutoPtr<ResourceManager> ResourceManager::Create(IRenderDevice* pDevice,
const CreateInfo& CI)
{
return RefCntAutoPtr<ResourceManager>{MakeNewRCObj<ResourceManager>()(pDevice, CI)};
}
ResourceManager::ResourceManager(IReferenceCounters* pRefCounters,
IRenderDevice* pDevice,
const CreateInfo& CI) :
TBase{pRefCounters},
m_DefaultAtlasDesc{CI.DefaultAtlasDesc},
m_DefaultAtlasName{CI.DefaultAtlasDesc.Desc.Name != nullptr ? CI.DefaultAtlasDesc.Desc.Name : "GLTF texture atlas"}
{
if (m_DefaultAtlasDesc.Desc.Type != RESOURCE_DIM_TEX_2D &&
m_DefaultAtlasDesc.Desc.Type != RESOURCE_DIM_TEX_2D_ARRAY &&
m_DefaultAtlasDesc.Desc.Type != RESOURCE_DIM_UNDEFINED)
{
LOG_ERROR_AND_THROW(GetResourceDimString(m_DefaultAtlasDesc.Desc.Type), " is not a valid resource dimension for a texture atlas");
}
if (m_DefaultAtlasDesc.Desc.Width > 0 &&
m_DefaultAtlasDesc.Desc.Height > 0 &&
m_DefaultAtlasDesc.Desc.Type != RESOURCE_DIM_UNDEFINED &&
m_DefaultAtlasDesc.Desc.MipLevels == 0)
{
m_DefaultAtlasDesc.Desc.MipLevels = ComputeMipLevelsCount(m_DefaultAtlasDesc.Desc.Width, m_DefaultAtlasDesc.Desc.Height);
}
m_DefaultAtlasDesc.Desc.Name = m_DefaultAtlasName.c_str();
m_BufferSuballocators.resize(CI.NumBuffSuballocators);
for (Uint32 i = 0; i < CI.NumBuffSuballocators; ++i)
{
CreateBufferSuballocator(pDevice, CI.BuffSuballocators[i], &m_BufferSuballocators[i]);
}
m_Atlases.reserve(CI.NumTexAtlases);
for (Uint32 i = 0; i < CI.NumTexAtlases; ++i)
{
RefCntAutoPtr<IDynamicTextureAtlas> pAtlas;
CreateDynamicTextureAtlas(pDevice, CI.TexAtlases[i], &pAtlas);
m_Atlases.emplace(CI.TexAtlases[i].Desc.Format, std::move(pAtlas));
}
}
RefCntAutoPtr<ITextureAtlasSuballocation> ResourceManager::FindAllocation(const char* CacheId)
{
RefCntAutoPtr<ITextureAtlasSuballocation> pAllocation;
if (CacheId != nullptr && *CacheId != 0)
{
std::lock_guard<std::mutex> Lock{m_TexAllocationsMtx};
auto it = m_TexAllocations.find(CacheId);
if (it != m_TexAllocations.end())
{
pAllocation = it->second.Lock();
if (!pAllocation)
m_TexAllocations.erase(it);
}
}
return pAllocation;
}
RefCntAutoPtr<ITextureAtlasSuballocation> ResourceManager::AllocateTextureSpace(
TEXTURE_FORMAT Fmt,
Uint32 Width,
Uint32 Height,
const char* CacheId,
IObject* pUserData)
{
RefCntAutoPtr<ITextureAtlasSuballocation> pAllocation;
if (CacheId != nullptr && *CacheId != 0)
{
pAllocation = FindAllocation(CacheId);
}
if (!pAllocation)
{
decltype(m_Atlases)::iterator cache_it; // NB: can't initialize it without locking the mutex
{
std::lock_guard<std::mutex> Lock{m_AtlasesMtx};
cache_it = m_Atlases.find(Fmt);
if (cache_it == m_Atlases.end())
{
// clang-format off
DEV_CHECK_ERR(m_DefaultAtlasDesc.Desc.Width > 0 &&
m_DefaultAtlasDesc.Desc.Height > 0 &&
m_DefaultAtlasDesc.Desc.Type != RESOURCE_DIM_UNDEFINED,
"Default texture description is not initialized");
// clang-format on
auto AtalsCreateInfo = m_DefaultAtlasDesc;
AtalsCreateInfo.Desc.Format = Fmt;
RefCntAutoPtr<IDynamicTextureAtlas> pAtlas;
CreateDynamicTextureAtlas(nullptr, AtalsCreateInfo, &pAtlas);
DEV_CHECK_ERR(pAtlas, "Failed to create new texture atlas");
cache_it = m_Atlases.emplace(Fmt, std::move(pAtlas)).first;
}
}
// Allocate outside of mutex
cache_it->second->Allocate(Width, Height, &pAllocation);
pAllocation->SetUserData(pUserData);
}
if (CacheId != nullptr && *CacheId != 0)
{
std::lock_guard<std::mutex> Lock{m_TexAllocationsMtx};
// Note that the same allocation may potentially be created by more
// than one thread if it has not been found in the cache originally
m_TexAllocations.emplace(CacheId, pAllocation);
}
return pAllocation;
}
} // namespace GLTF
} // namespace Diligent
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