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// Copyright 2017 The Dawn Authors
//
// 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.
#ifndef DAWNNATIVE_BINDGROUPLAYOUT_H_
#define DAWNNATIVE_BINDGROUPLAYOUT_H_
#include "common/Constants.h"
#include "dawn_native/CachedObject.h"
#include "dawn_native/Error.h"
#include "dawn_native/Forward.h"
#include "dawn_native/dawn_platform.h"
#include <array>
#include <bitset>
namespace dawn_native {
MaybeError ValidateBindGroupLayoutDescriptor(DeviceBase*,
const BindGroupLayoutDescriptor* descriptor);
class BindGroupLayoutBase : public CachedObject {
public:
BindGroupLayoutBase(DeviceBase* device, const BindGroupLayoutDescriptor* descriptor);
~BindGroupLayoutBase() override;
static BindGroupLayoutBase* MakeError(DeviceBase* device);
struct LayoutBindingInfo {
std::array<wgpu::ShaderStage, kMaxBindingsPerGroup> visibilities;
std::array<wgpu::BindingType, kMaxBindingsPerGroup> types;
std::array<wgpu::TextureComponentType, kMaxBindingsPerGroup> textureComponentTypes;
std::array<wgpu::TextureViewDimension, kMaxBindingsPerGroup> textureDimensions;
std::bitset<kMaxBindingsPerGroup> hasDynamicOffset;
std::bitset<kMaxBindingsPerGroup> multisampled;
std::bitset<kMaxBindingsPerGroup> mask;
};
const LayoutBindingInfo& GetBindingInfo() const;
// Functors necessary for the unordered_set<BGLBase*>-based cache.
struct HashFunc {
size_t operator()(const BindGroupLayoutBase* bgl) const;
};
struct EqualityFunc {
bool operator()(const BindGroupLayoutBase* a, const BindGroupLayoutBase* b) const;
};
uint32_t GetDynamicBufferCount() const;
uint32_t GetDynamicUniformBufferCount() const;
uint32_t GetDynamicStorageBufferCount() const;
private:
BindGroupLayoutBase(DeviceBase* device, ObjectBase::ErrorTag tag);
LayoutBindingInfo mBindingInfo;
uint32_t mDynamicUniformBufferCount = 0;
uint32_t mDynamicStorageBufferCount = 0;
};
} // namespace dawn_native
#endif // DAWNNATIVE_BINDGROUPLAYOUT_H_
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