mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-10-10 20:09:03 +00:00
5d846ab503
But keep a namespace alias to avoid breaking project that depend on the previous namespace name while they get updated. Bug: dawn:824 Change-Id: I1e99c4d0d2acf7644a225a88d07806d1a64478e6 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75540 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Corentin Wallez <cwallez@chromium.org>
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// Copyright 2019 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.
|
|
|
|
#include "dawn_wire/WireDeserializeAllocator.h"
|
|
|
|
#include <algorithm>
|
|
|
|
namespace dawn::wire {
|
|
WireDeserializeAllocator::WireDeserializeAllocator() {
|
|
Reset();
|
|
}
|
|
|
|
WireDeserializeAllocator::~WireDeserializeAllocator() {
|
|
Reset();
|
|
}
|
|
|
|
void* WireDeserializeAllocator::GetSpace(size_t size) {
|
|
// Return space in the current buffer if possible first.
|
|
if (mRemainingSize >= size) {
|
|
char* buffer = mCurrentBuffer;
|
|
mCurrentBuffer += size;
|
|
mRemainingSize -= size;
|
|
return buffer;
|
|
}
|
|
|
|
// Otherwise allocate a new buffer and try again.
|
|
size_t allocationSize = std::max(size, size_t(2048));
|
|
char* allocation = static_cast<char*>(malloc(allocationSize));
|
|
if (allocation == nullptr) {
|
|
return nullptr;
|
|
}
|
|
|
|
mAllocations.push_back(allocation);
|
|
mCurrentBuffer = allocation;
|
|
mRemainingSize = allocationSize;
|
|
return GetSpace(size);
|
|
}
|
|
|
|
void WireDeserializeAllocator::Reset() {
|
|
for (auto allocation : mAllocations) {
|
|
free(allocation);
|
|
}
|
|
mAllocations.clear();
|
|
|
|
// The initial buffer is the inline buffer so that some allocations can be skipped
|
|
mCurrentBuffer = mStaticBuffer;
|
|
mRemainingSize = sizeof(mStaticBuffer);
|
|
}
|
|
} // namespace dawn::wire
|