blob: 07731509b56d964576be684e78585ca97869e466 [file] [log] [blame]
// 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_native/PassResourceUsageTracker.h"
#include "dawn_native/Buffer.h"
#include "dawn_native/Texture.h"
namespace dawn_native {
PassResourceUsageTracker::PassResourceUsageTracker(PassType passType) : mPassType(passType) {
}
void PassResourceUsageTracker::BufferUsedAs(BufferBase* buffer, wgpu::BufferUsage usage) {
// std::map's operator[] will create the key and return 0 if the key didn't exist
// before.
mBufferUsages[buffer] |= usage;
}
void PassResourceUsageTracker::TextureUsedAs(TextureBase* texture, wgpu::TextureUsage usage) {
// std::map's operator[] will create the key and return 0 if the key didn't exist
// before.
mTextureUsages[texture] |= usage;
}
// Returns the per-pass usage for use by backends for APIs with explicit barriers.
PassResourceUsage PassResourceUsageTracker::AcquireResourceUsage() {
PassResourceUsage result;
result.passType = mPassType;
result.buffers.reserve(mBufferUsages.size());
result.bufferUsages.reserve(mBufferUsages.size());
result.textures.reserve(mTextureUsages.size());
result.textureUsages.reserve(mTextureUsages.size());
for (auto& it : mBufferUsages) {
result.buffers.push_back(it.first);
result.bufferUsages.push_back(it.second);
}
for (auto& it : mTextureUsages) {
result.textures.push_back(it.first);
result.textureUsages.push_back(it.second);
}
mBufferUsages.clear();
mTextureUsages.clear();
return result;
}
} // namespace dawn_native