115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
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// Copyright 2017 The NXT Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef BACKEND_COMMON_BUFFER_H_
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#define BACKEND_COMMON_BUFFER_H_
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#include "Forward.h"
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#include "RefCounted.h"
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#include "nxt/nxtcpp.h"
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namespace backend {
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class BufferBase : public RefCounted {
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public:
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BufferBase(BufferBuilder* builder);
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uint32_t GetSize() const;
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nxt::BufferUsageBit GetAllowedUsage() const;
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nxt::BufferUsageBit GetUsage() const;
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static bool IsUsagePossible(nxt::BufferUsageBit allowedUsage, nxt::BufferUsageBit usage);
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bool IsTransitionPossible(nxt::BufferUsageBit usage) const;
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bool IsFrozen() const;
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bool HasFrozenUsage(nxt::BufferUsageBit usage) const;
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void TransitionUsageImpl(nxt::BufferUsageBit usage);
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// NXT API
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BufferViewBuilder* CreateBufferViewBuilder();
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void SetSubData(uint32_t start, uint32_t count, const uint32_t* data);
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void TransitionUsage(nxt::BufferUsageBit usage);
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void FreezeUsage(nxt::BufferUsageBit usage);
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private:
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virtual void SetSubDataImpl(uint32_t start, uint32_t count, const uint32_t* data) = 0;
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DeviceBase* device;
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uint32_t size;
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nxt::BufferUsageBit allowedUsage = nxt::BufferUsageBit::None;
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nxt::BufferUsageBit currentUsage = nxt::BufferUsageBit::None;
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bool frozen = false;
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};
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class BufferBuilder : public RefCounted {
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public:
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BufferBuilder(DeviceBase* device);
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bool WasConsumed() const;
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// NXT API
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BufferBase* GetResult();
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void SetAllowedUsage(nxt::BufferUsageBit usage);
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void SetInitialUsage(nxt::BufferUsageBit usage);
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void SetSize(uint32_t size);
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private:
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friend class BufferBase;
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DeviceBase* device;
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uint32_t size;
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nxt::BufferUsageBit allowedUsage = nxt::BufferUsageBit::None;
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nxt::BufferUsageBit currentUsage = nxt::BufferUsageBit::None;
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int propertiesSet = 0;
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bool consumed = false;
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};
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class BufferViewBase : public RefCounted {
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public:
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BufferViewBase(BufferViewBuilder* builder);
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BufferBase* GetBuffer();
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uint32_t GetSize() const;
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uint32_t GetOffset() const;
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private:
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Ref<BufferBase> buffer;
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uint32_t size;
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uint32_t offset;
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};
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class BufferViewBuilder : public RefCounted {
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public:
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BufferViewBuilder(DeviceBase* device, BufferBase* buffer);
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bool WasConsumed() const;
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// NXT API
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BufferViewBase* GetResult();
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void SetExtent(uint32_t offset, uint32_t size);
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private:
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friend class BufferViewBase;
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DeviceBase* device;
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Ref<BufferBase> buffer;
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uint32_t offset = 0;
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uint32_t size = 0;
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int propertiesSet = 0;
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bool consumed = false;
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};
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}
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#endif // BACKEND_COMMON_BUFFER_H_
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