/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.
#include "StdAfx.h"
#include "DX12Base.hpp"

int g_nPrintDX12 = 0;

namespace DX12
{
    //---------------------------------------------------------------------------------------------------------------------
    UINT GetDXGIFormatSize(DXGI_FORMAT format)
    {
        switch (format)
        {
        case DXGI_FORMAT_UNKNOWN:
            return 0;

        case DXGI_FORMAT_R32G32B32A32_TYPELESS:
        case DXGI_FORMAT_R32G32B32A32_FLOAT:
        case DXGI_FORMAT_R32G32B32A32_UINT:
        case DXGI_FORMAT_R32G32B32A32_SINT:
            return 16;

        case DXGI_FORMAT_R32G32B32_TYPELESS:
        case DXGI_FORMAT_R32G32B32_FLOAT:
        case DXGI_FORMAT_R32G32B32_UINT:
        case DXGI_FORMAT_R32G32B32_SINT:
            return 12;

        case DXGI_FORMAT_R16G16B16A16_TYPELESS:
        case DXGI_FORMAT_R16G16B16A16_FLOAT:
        case DXGI_FORMAT_R16G16B16A16_UNORM:
        case DXGI_FORMAT_R16G16B16A16_UINT:
        case DXGI_FORMAT_R16G16B16A16_SNORM:
        case DXGI_FORMAT_R16G16B16A16_SINT:
        case DXGI_FORMAT_R32G32_TYPELESS:
        case DXGI_FORMAT_R32G32_FLOAT:
        case DXGI_FORMAT_R32G32_UINT:
        case DXGI_FORMAT_R32G32_SINT:
        case DXGI_FORMAT_R32G8X24_TYPELESS:
        case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
        case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
        case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
            return 8;

        case DXGI_FORMAT_R10G10B10A2_TYPELESS:
        case DXGI_FORMAT_R10G10B10A2_UNORM:
        case DXGI_FORMAT_R10G10B10A2_UINT:
        case DXGI_FORMAT_R11G11B10_FLOAT:
        case DXGI_FORMAT_R8G8B8A8_TYPELESS:
        case DXGI_FORMAT_R8G8B8A8_UNORM:
        case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
        case DXGI_FORMAT_R8G8B8A8_UINT:
        case DXGI_FORMAT_R8G8B8A8_SNORM:
        case DXGI_FORMAT_R8G8B8A8_SINT:
        case DXGI_FORMAT_R16G16_TYPELESS:
        case DXGI_FORMAT_R16G16_FLOAT:
        case DXGI_FORMAT_R16G16_UNORM:
        case DXGI_FORMAT_R16G16_UINT:
        case DXGI_FORMAT_R16G16_SNORM:
        case DXGI_FORMAT_R16G16_SINT:
        case DXGI_FORMAT_R32_TYPELESS:
        case DXGI_FORMAT_D32_FLOAT:
        case DXGI_FORMAT_R32_FLOAT:
        case DXGI_FORMAT_R32_UINT:
        case DXGI_FORMAT_R32_SINT:
        case DXGI_FORMAT_R24G8_TYPELESS:
        case DXGI_FORMAT_D24_UNORM_S8_UINT:
        case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
        case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
        case DXGI_FORMAT_B8G8R8A8_UNORM:
        case DXGI_FORMAT_B8G8R8X8_UNORM:
        case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
        case DXGI_FORMAT_B8G8R8A8_TYPELESS:
        case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
        case DXGI_FORMAT_B8G8R8X8_TYPELESS:
        case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
        case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
        case DXGI_FORMAT_R8G8_B8G8_UNORM:
        case DXGI_FORMAT_G8R8_G8B8_UNORM:
            return 4;

        case DXGI_FORMAT_R8G8_TYPELESS:
        case DXGI_FORMAT_R8G8_UNORM:
        case DXGI_FORMAT_R8G8_UINT:
        case DXGI_FORMAT_R8G8_SNORM:
        case DXGI_FORMAT_R8G8_SINT:
        case DXGI_FORMAT_R16_TYPELESS:
        case DXGI_FORMAT_R16_FLOAT:
        case DXGI_FORMAT_D16_UNORM:
        case DXGI_FORMAT_R16_UNORM:
        case DXGI_FORMAT_R16_UINT:
        case DXGI_FORMAT_R16_SNORM:
        case DXGI_FORMAT_R16_SINT:
        case DXGI_FORMAT_B5G6R5_UNORM:
        case DXGI_FORMAT_B5G5R5A1_UNORM:
        case DXGI_FORMAT_B4G4R4A4_UNORM:
            return 2;

        case DXGI_FORMAT_R8_TYPELESS:
        case DXGI_FORMAT_R8_UNORM:
        case DXGI_FORMAT_R8_UINT:
        case DXGI_FORMAT_R8_SNORM:
        case DXGI_FORMAT_R8_SINT:
        case DXGI_FORMAT_A8_UNORM:
            return 1;
        }

        DX12_NOT_IMPLEMENTED;
        return 0;
    }

    //---------------------------------------------------------------------------------------------------------------------
    D3D12_CLEAR_VALUE GetDXGIFormatClearValue(DXGI_FORMAT format, bool depth)
    {
        D3D12_CLEAR_VALUE clearValue;

        clearValue.Color[0] = 0.0f;
        clearValue.Color[1] = 0.0f;
        clearValue.Color[2] = 0.0f;
        clearValue.Color[3] = 0.0f;

        switch (format)
        {
        case DXGI_FORMAT_R32G32B32A32_TYPELESS:
            format = DXGI_FORMAT_R32G32B32A32_FLOAT;
            break;

        case DXGI_FORMAT_R32G32B32_TYPELESS:
            format = DXGI_FORMAT_R32G32B32_FLOAT;
            break;

        case DXGI_FORMAT_R32_TYPELESS:
            format = depth ? DXGI_FORMAT_D32_FLOAT : DXGI_FORMAT_R32_FLOAT;
            break;

        case DXGI_FORMAT_R16G16_TYPELESS:
            format = DXGI_FORMAT_R16G16_FLOAT;
            break;

        case DXGI_FORMAT_R16G16B16A16_TYPELESS:
            format = DXGI_FORMAT_R16G16B16A16_FLOAT;
            break;

        case DXGI_FORMAT_R32G32_TYPELESS:
        case DXGI_FORMAT_R32G8X24_TYPELESS:
        case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
        case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
            format = DXGI_FORMAT_R32G32_FLOAT;
            break;

        case DXGI_FORMAT_R24G8_TYPELESS:
        case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
        case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
            format = DXGI_FORMAT_D24_UNORM_S8_UINT;
            break;

        case DXGI_FORMAT_R10G10B10A2_TYPELESS:
            format = DXGI_FORMAT_R10G10B10A2_UNORM;
            break;

        case DXGI_FORMAT_R8G8B8A8_TYPELESS:
        case DXGI_FORMAT_B8G8R8A8_TYPELESS:
        case DXGI_FORMAT_B8G8R8X8_TYPELESS:
            format = DXGI_FORMAT_R8G8B8A8_UNORM;
            break;

        case DXGI_FORMAT_R8G8_TYPELESS:
            format = DXGI_FORMAT_R8G8_UNORM;
            break;

        case DXGI_FORMAT_R16_TYPELESS:
            format = depth ? DXGI_FORMAT_D16_UNORM : DXGI_FORMAT_R16_FLOAT;
            break;

        case DXGI_FORMAT_R8_TYPELESS:
            format = DXGI_FORMAT_R8_UNORM;
            break;
        }

        clearValue.Format = format;
        return clearValue;
    }

    ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

    //---------------------------------------------------------------------------------------------------------------------
    DeviceObject::DeviceObject(Device* device)
        : AzRHI::ReferenceCounted()
        , m_Device(device)
        , m_IsInitialized(false)
    {
    }

    //---------------------------------------------------------------------------------------------------------------------
    DeviceObject::~DeviceObject()
    {
        DX12_LOG("DX12 object destroyed: %p", this);
    }
}