108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/*
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* Copyright (C) 2024 The Android Open Source Project
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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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*/
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#ifndef TNT_FILAMENT_BACKEND_COMMANDSTREAMVECTOR_H
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#define TNT_FILAMENT_BACKEND_COMMANDSTREAMVECTOR_H
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#include <backend/DriverApiForward.h>
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#include <utils/ostream.h>
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#include <initializer_list>
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#include <memory>
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#include <stddef.h>
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#include <stdint.h>
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namespace filament::backend {
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void* allocateFromCommandStream(DriverApi& driver, size_t size, size_t alignment) noexcept;
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class DescriptorSetOffsetArray {
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public:
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using value_type = uint32_t;
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using reference = value_type&;
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using const_reference = value_type const&;
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using size_type = uint32_t;
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using difference_type = int32_t;
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using pointer = value_type*;
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using const_pointer = value_type const*;
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using iterator = pointer;
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using const_iterator = const_pointer;
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DescriptorSetOffsetArray() noexcept = default;
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~DescriptorSetOffsetArray() noexcept = default;
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DescriptorSetOffsetArray(size_type size, DriverApi& driver) noexcept {
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mOffsets = (value_type *)allocateFromCommandStream(driver,
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size * sizeof(value_type), alignof(value_type));
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std::uninitialized_fill_n(mOffsets, size, 0);
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}
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DescriptorSetOffsetArray(std::initializer_list<uint32_t> list, DriverApi& driver) noexcept {
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mOffsets = (value_type *)allocateFromCommandStream(driver,
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list.size() * sizeof(value_type), alignof(value_type));
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std::uninitialized_copy(list.begin(), list.end(), mOffsets);
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}
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DescriptorSetOffsetArray(DescriptorSetOffsetArray const&) = delete;
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DescriptorSetOffsetArray& operator=(DescriptorSetOffsetArray const&) = delete;
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DescriptorSetOffsetArray(DescriptorSetOffsetArray&& rhs) noexcept
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: mOffsets(rhs.mOffsets) {
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rhs.mOffsets = nullptr;
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}
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DescriptorSetOffsetArray& operator=(DescriptorSetOffsetArray&& rhs) noexcept {
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if (this != &rhs) {
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mOffsets = rhs.mOffsets;
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rhs.mOffsets = nullptr;
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}
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return *this;
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}
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bool empty() const noexcept { return mOffsets == nullptr; }
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value_type* data() noexcept { return mOffsets; }
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const value_type* data() const noexcept { return mOffsets; }
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reference operator[](size_type n) noexcept {
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return *(data() + n);
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}
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const_reference operator[](size_type n) const noexcept {
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return *(data() + n);
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}
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void clear() noexcept {
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mOffsets = nullptr;
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}
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private:
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value_type *mOffsets = nullptr;
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};
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} // namespace filament::backend
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#if !defined(NDEBUG)
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utils::io::ostream& operator<<(utils::io::ostream& out, const filament::backend::DescriptorSetOffsetArray& rhs);
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#endif
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#endif //TNT_FILAMENT_BACKEND_COMMANDSTREAMVECTOR_H
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