//--------------------------------------------------------------------------------------
// File: WICTextureLoader.h
//
// Function for loading a WIC image and creating a Direct3D runtime texture for it
// (auto-generating mipmaps if possible)
//
// Note: Assumes application has already called CoInitializeEx
//
// Warning: CreateWICTexture* functions are not thread-safe if given a d3dContext instance for
//          auto-gen mipmap support.
//
// Note these functions are useful for images created as simple 2D textures. For
// more complex resources, DDSTextureLoader is an excellent light-weight runtime loader.
// For a full-featured DDS file reader, writer, and texture processing pipeline see
// the 'Texconv' sample and the 'DirectXTex' library.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
// http://go.microsoft.com/fwlink/?LinkId=248929
//--------------------------------------------------------------------------------------

#pragma once

#include <d3d11_1.h>

#include <cstdint>

namespace DirectX
{
#ifndef WIC_LOADER_FLAGS_DEFINED
#define WIC_LOADER_FLAGS_DEFINED
    enum WIC_LOADER_FLAGS : uint32_t
    {
        WIC_LOADER_DEFAULT      = 0,
        WIC_LOADER_FORCE_SRGB   = 0x1,
        WIC_LOADER_IGNORE_SRGB  = 0x2,
        WIC_LOADER_FORCE_RGBA32 = 0x10,
    };
#endif

    // Standard version
    HRESULT CreateWICTextureFromMemory(
        _In_ ID3D11Device* d3dDevice,
        _In_reads_bytes_(wicDataSize) const uint8_t* wicData,
        _In_ size_t wicDataSize,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView,
        _In_ size_t maxsize = 0) noexcept;

    HRESULT CreateWICTextureFromFile(
        _In_ ID3D11Device* d3dDevice,
        _In_z_ const wchar_t* szFileName,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView,
        _In_ size_t maxsize = 0) noexcept;

    // Standard version with optional auto-gen mipmap support
    HRESULT CreateWICTextureFromMemory(
        _In_ ID3D11Device* d3dDevice,
        _In_opt_ ID3D11DeviceContext* d3dContext,
        _In_reads_bytes_(wicDataSize) const uint8_t* wicData,
        _In_ size_t wicDataSize,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView,
        _In_ size_t maxsize = 0) noexcept;

    HRESULT CreateWICTextureFromFile(
        _In_ ID3D11Device* d3dDevice,
        _In_opt_ ID3D11DeviceContext* d3dContext,
        _In_z_ const wchar_t* szFileName,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView,
        _In_ size_t maxsize = 0) noexcept;

    // Extended version
    HRESULT CreateWICTextureFromMemoryEx(
        _In_ ID3D11Device* d3dDevice,
        _In_reads_bytes_(wicDataSize) const uint8_t* wicData,
        _In_ size_t wicDataSize,
        _In_ size_t maxsize,
        _In_ D3D11_USAGE usage,
        _In_ unsigned int bindFlags,
        _In_ unsigned int cpuAccessFlags,
        _In_ unsigned int miscFlags,
        _In_ unsigned int loadFlags,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

    HRESULT CreateWICTextureFromFileEx(
        _In_ ID3D11Device* d3dDevice,
        _In_z_ const wchar_t* szFileName,
        _In_ size_t maxsize,
        _In_ D3D11_USAGE usage,
        _In_ unsigned int bindFlags,
        _In_ unsigned int cpuAccessFlags,
        _In_ unsigned int miscFlags,
        _In_ unsigned int loadFlags,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

    // Extended version with optional auto-gen mipmap support
    HRESULT CreateWICTextureFromMemoryEx(
        _In_ ID3D11Device* d3dDevice,
        _In_opt_ ID3D11DeviceContext* d3dContext,
        _In_reads_bytes_(wicDataSize) const uint8_t* wicData,
        _In_ size_t wicDataSize,
        _In_ size_t maxsize,
        _In_ D3D11_USAGE usage,
        _In_ unsigned int bindFlags,
        _In_ unsigned int cpuAccessFlags,
        _In_ unsigned int miscFlags,
        _In_ unsigned int loadFlags,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

    HRESULT CreateWICTextureFromFileEx(
        _In_ ID3D11Device* d3dDevice,
        _In_opt_ ID3D11DeviceContext* d3dContext,
        _In_z_ const wchar_t* szFileName,
        _In_ size_t maxsize,
        _In_ D3D11_USAGE usage,
        _In_ unsigned int bindFlags,
        _In_ unsigned int cpuAccessFlags,
        _In_ unsigned int miscFlags,
        _In_ unsigned int loadFlags,
        _Outptr_opt_ ID3D11Resource** texture,
        _Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;
}