// Copyright 2017 The NXT 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 "backend/vulkan/VulkanBackend.h"

#include "backend/Commands.h"

#include <spirv-cross/spirv_cross.hpp>

namespace backend {
namespace vulkan {

    nxtProcTable GetNonValidatingProcs();
    nxtProcTable GetValidatingProcs();

    void Init(nxtProcTable* procs, nxtDevice* device) {
        *procs = GetValidatingProcs();
        *device = reinterpret_cast<nxtDevice>(new Device);
    }

    // Device

    Device::Device() {
    }

    Device::~Device() {
    }

    BindGroupBase* Device::CreateBindGroup(BindGroupBuilder* builder) {
        return new BindGroup(builder);
    }
    BindGroupLayoutBase* Device::CreateBindGroupLayout(BindGroupLayoutBuilder* builder) {
        return new BindGroupLayout(builder);
    }
    BlendStateBase* Device::CreateBlendState(BlendStateBuilder* builder) {
        return new BlendState(builder);
    }
    BufferBase* Device::CreateBuffer(BufferBuilder* builder) {
        return new Buffer(builder);
    }
    BufferViewBase* Device::CreateBufferView(BufferViewBuilder* builder) {
        return new BufferView(builder);
    }
    CommandBufferBase* Device::CreateCommandBuffer(CommandBufferBuilder* builder) {
        return new CommandBuffer(builder);
    }
    ComputePipelineBase* Device::CreateComputePipeline(ComputePipelineBuilder* builder) {
        return new ComputePipeline(builder);
    }
    DepthStencilStateBase* Device::CreateDepthStencilState(DepthStencilStateBuilder* builder) {
        return new DepthStencilState(builder);
    }
    FramebufferBase* Device::CreateFramebuffer(FramebufferBuilder* builder) {
        return new Framebuffer(builder);
    }
    InputStateBase* Device::CreateInputState(InputStateBuilder* builder) {
        return new InputState(builder);
    }
    PipelineLayoutBase* Device::CreatePipelineLayout(PipelineLayoutBuilder* builder) {
        return new PipelineLayout(builder);
    }
    QueueBase* Device::CreateQueue(QueueBuilder* builder) {
        return new Queue(builder);
    }
    RenderPassBase* Device::CreateRenderPass(RenderPassBuilder* builder) {
        return new RenderPass(builder);
    }
    RenderPipelineBase* Device::CreateRenderPipeline(RenderPipelineBuilder* builder) {
        return new RenderPipeline(builder);
    }
    SamplerBase* Device::CreateSampler(SamplerBuilder* builder) {
        return new Sampler(builder);
    }
    ShaderModuleBase* Device::CreateShaderModule(ShaderModuleBuilder* builder) {
        auto module = new ShaderModule(builder);

        spirv_cross::Compiler compiler(builder->AcquireSpirv());
        module->ExtractSpirvInfo(compiler);

        return module;
    }
    SwapChainBase* Device::CreateSwapChain(SwapChainBuilder* builder) {
        return new SwapChain(builder);
    }
    TextureBase* Device::CreateTexture(TextureBuilder* builder) {
        return new Texture(builder);
    }
    TextureViewBase* Device::CreateTextureView(TextureViewBuilder* builder) {
        return new TextureView(builder);
    }

    void Device::TickImpl() {
    }

    // Buffer

    Buffer::Buffer(BufferBuilder* builder)
        : BufferBase(builder) {
    }

    Buffer::~Buffer() {
    }

    void Buffer::SetSubDataImpl(uint32_t, uint32_t, const uint32_t*) {
    }

    void Buffer::MapReadAsyncImpl(uint32_t, uint32_t, uint32_t) {
    }

    void Buffer::UnmapImpl() {
    }

    void Buffer::TransitionUsageImpl(nxt::BufferUsageBit, nxt::BufferUsageBit) {
    }

    // Queue

    Queue::Queue(QueueBuilder* builder)
        : QueueBase(builder) {
    }

    Queue::~Queue() {
    }

    void Queue::Submit(uint32_t, CommandBuffer* const*) {
    }

    // Texture

    Texture::Texture(TextureBuilder* builder)
        : TextureBase(builder) {
    }

    Texture::~Texture() {
    }

    void Texture::TransitionUsageImpl(nxt::TextureUsageBit, nxt::TextureUsageBit) {
    }

    // SwapChain

    SwapChain::SwapChain(SwapChainBuilder* builder)
        : SwapChainBase(builder) {
        const auto& im = GetImplementation();
        im.Init(im.userData, nullptr);
    }

    SwapChain::~SwapChain() {
    }

    TextureBase* SwapChain::GetNextTextureImpl(TextureBuilder* builder) {
        return GetDevice()->CreateTexture(builder);
    }
}
}