#pragma once
// Shim for the DirectX 7 <d3d.h> on non-Windows targets: the <ddraw.h> surface description 40250
// EterImageLib/DXTCImage.cpp copies straight out of a .dds file (the 124 bytes after the "DDS " magic).
//
// PORT: lpSurface is a pointer in <ddraw.h>, 4 bytes in the 32-bit client; it is a DWORD here so the
// structure keeps the on-disk layout on 64-bit targets.
#include "../win32/windows.h"

#define DDSD_CAPS 0x00000001l
#define DDSD_HEIGHT 0x00000002l
#define DDSD_WIDTH 0x00000004l
#define DDSD_PITCH 0x00000008l
#define DDSD_PIXELFORMAT 0x00001000l
#define DDSD_MIPMAPCOUNT 0x00020000l
#define DDSD_LINEARSIZE 0x00080000l

#define DDPF_ALPHAPIXELS 0x00000001l
#define DDPF_FOURCC 0x00000004l
#define DDPF_RGB 0x00000040l
#define DDPF_ALPHAPREMULT 0x00008000l

typedef struct _DDCOLORKEY
{
	DWORD dwColorSpaceLowValue;
	DWORD dwColorSpaceHighValue;
} DDCOLORKEY;

typedef struct _DDPIXELFORMAT
{
	DWORD dwSize;
	DWORD dwFlags;
	DWORD dwFourCC;
	union
	{
		DWORD dwRGBBitCount;
		DWORD dwYUVBitCount;
		DWORD dwZBufferBitDepth;
		DWORD dwAlphaBitDepth;
		DWORD dwLuminanceBitCount;
		DWORD dwBumpBitCount;
		DWORD dwPrivateFormatBitCount;
	};
	union
	{
		DWORD dwRBitMask;
		DWORD dwYBitMask;
		DWORD dwStencilBitDepth;
		DWORD dwLuminanceBitMask;
		DWORD dwBumpDuBitMask;
		DWORD dwOperations;
	};
	union
	{
		DWORD dwGBitMask;
		DWORD dwUBitMask;
		DWORD dwZBitMask;
		DWORD dwBumpDvBitMask;
	};
	union
	{
		DWORD dwBBitMask;
		DWORD dwVBitMask;
		DWORD dwStencilBitMask;
		DWORD dwBumpLuminanceBitMask;
	};
	union
	{
		DWORD dwRGBAlphaBitMask;
		DWORD dwYUVAlphaBitMask;
		DWORD dwLuminanceAlphaBitMask;
		DWORD dwRGBZBitMask;
		DWORD dwYUVZBitMask;
	};
} DDPIXELFORMAT;

typedef struct _DDSCAPS2
{
	DWORD dwCaps;
	DWORD dwCaps2;
	DWORD dwCaps3;
	DWORD dwCaps4;
} DDSCAPS2;

typedef struct _DDSURFACEDESC2
{
	DWORD dwSize;
	DWORD dwFlags;
	DWORD dwHeight;
	DWORD dwWidth;
	union
	{
		LONG lPitch;
		DWORD dwLinearSize;
	};
	union
	{
		DWORD dwBackBufferCount;
		DWORD dwDepth;
	};
	union
	{
		DWORD dwMipMapCount;
		DWORD dwRefreshRate;
		DWORD dwSrcVBHandle;
	};
	DWORD dwAlphaBitDepth;
	DWORD dwReserved;
	DWORD lpSurface;
	union
	{
		DDCOLORKEY ddckCKDestOverlay;
		DWORD dwEmptyFaceColor;
	};
	DDCOLORKEY ddckCKDestBlt;
	DDCOLORKEY ddckCKSrcOverlay;
	DDCOLORKEY ddckCKSrcBlt;
	DDPIXELFORMAT ddpfPixelFormat;
	DDSCAPS2 ddsCaps;
	DWORD dwTextureStage;
} DDSURFACEDESC2, *LPDDSURFACEDESC2;

static_assert(sizeof(DDPIXELFORMAT) == 32 && sizeof(DDSURFACEDESC2) == 124, "the .dds header layout");