| // Copyright 2019 The Amber 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 "src/vulkan/index_buffer.h" |
| |
| #include <cstring> |
| |
| #include "src/make_unique.h" |
| #include "src/vulkan/command_buffer.h" |
| #include "src/vulkan/device.h" |
| |
| namespace amber { |
| namespace vulkan { |
| |
| IndexBuffer::IndexBuffer(Device* device) : device_(device) {} |
| |
| IndexBuffer::~IndexBuffer() = default; |
| |
| Result IndexBuffer::SendIndexData(CommandBuffer* command, Buffer* buffer) { |
| if (transfer_buffer_) { |
| return Result( |
| "IndexBuffer::SendIndexData must be called once when it is created"); |
| } |
| |
| if (buffer->ElementCount() == 0) |
| return Result("IndexBuffer::SendIndexData |buffer| is empty"); |
| |
| transfer_buffer_ = |
| MakeUnique<TransferBuffer>(device_, buffer->GetSizeInBytes(), nullptr); |
| Result r = transfer_buffer_->AddUsageFlags(VK_BUFFER_USAGE_INDEX_BUFFER_BIT | |
| VK_BUFFER_USAGE_TRANSFER_DST_BIT); |
| if (!r.IsSuccess()) |
| return r; |
| |
| r = transfer_buffer_->Initialize(); |
| if (!r.IsSuccess()) |
| return r; |
| |
| std::memcpy(transfer_buffer_->HostAccessibleMemoryPtr(), |
| buffer->ValuePtr()->data(), buffer->GetSizeInBytes()); |
| |
| transfer_buffer_->CopyToDevice(command); |
| return {}; |
| } |
| |
| Result IndexBuffer::BindToCommandBuffer(CommandBuffer* command) { |
| if (!transfer_buffer_) { |
| return Result( |
| "IndexBuffer::BindToCommandBuffer |transfer_buffer_| is nullptr"); |
| } |
| |
| device_->GetPtrs()->vkCmdBindIndexBuffer(command->GetVkCommandBuffer(), |
| transfer_buffer_->GetVkBuffer(), 0, |
| VK_INDEX_TYPE_UINT32); |
| return {}; |
| } |
| |
| } // namespace vulkan |
| } // namespace amber |