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DirectXTex/Auxiliary/DirectXTexXboxDDS.cpp

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//--------------------------------------------------------------------------------------
// File: DirectXTexXboxDDS.cpp
//
// DirectXTex Auxilary functions for saving "XBOX" Xbox variants of DDS files
//
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
//--------------------------------------------------------------------------------------
#include "DirectXTexP.h"
#include "DirectXTexXbox.h"
#include "DDS.h"
#if defined(_GAMING_XBOX) || defined(_USE_GXDK)
#include "gxdk.h"
#else
#include "xdk.h"
#endif
using namespace DirectX;
using namespace Xbox;
namespace
{
//-------------------------------------------------------------------------------------
// Decodes DDS header using XBOX extended header (variant of DX10 header)
//-------------------------------------------------------------------------------------
HRESULT DecodeDDSHeader(
_In_reads_bytes_(size) const uint8_t* pSource,
size_t size,
DirectX::TexMetadata& metadata,
_Out_opt_ DDSMetaData* ddPixelFormat,
_Out_opt_ XboxTileMode* tmode,
_Out_opt_ uint32_t* dataSize,
_Out_opt_ uint32_t* baseAlignment)
{
if (!pSource)
return E_INVALIDARG;
if (tmode)
{
*tmode = c_XboxTileModeInvalid;
}
if (dataSize)
{
*dataSize = 0;
}
if (baseAlignment)
{
*baseAlignment = 0;
}
metadata = {};
if (ddPixelFormat)
{
*ddPixelFormat = {};
}
if (size < DDS_MIN_HEADER_SIZE)
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
// DDS files always start with the same magic number ("DDS ")
auto const dwMagicNumber = *reinterpret_cast<const uint32_t*>(pSource);
if (dwMagicNumber != DDS_MAGIC)
{
return E_FAIL;
}
auto pHeader = reinterpret_cast<const DDS_HEADER*>(reinterpret_cast<const uint8_t*>(pSource) + sizeof(uint32_t));
// Verify header to validate DDS file
if (pHeader->size != sizeof(DDS_HEADER)
|| pHeader->ddspf.size != sizeof(DDS_PIXELFORMAT))
{
return E_FAIL;
}
metadata.mipLevels = pHeader->mipMapCount;
if (metadata.mipLevels == 0)
metadata.mipLevels = 1;
// Check for XBOX extension
if (!(pHeader->ddspf.flags & DDS_FOURCC)
|| (MAKEFOURCC('X', 'B', 'O', 'X') != pHeader->ddspf.fourCC))
{
// We know it's a DDS file, but it's not an XBOX extension
return S_FALSE;
}
// Buffer must be big enough for both headers and magic value
if (size < DDS_XBOX_HEADER_SIZE)
{
return E_FAIL;
}
auto xboxext = reinterpret_cast<const DDS_HEADER_XBOX*>(
reinterpret_cast<const uint8_t*>(pSource) + DDS_MIN_HEADER_SIZE);
metadata.arraySize = xboxext->arraySize;
if (metadata.arraySize == 0)
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
metadata.format = xboxext->dxgiFormat;
if (!IsValid(metadata.format))
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
static_assert(static_cast<int>(TEX_MISC_TEXTURECUBE) == static_cast<int>(DDS_RESOURCE_MISC_TEXTURECUBE), "DDS header mismatch");
metadata.miscFlags = xboxext->miscFlag & ~static_cast<uint32_t>(TEX_MISC_TEXTURECUBE);
switch (xboxext->resourceDimension)
{
case DDS_DIMENSION_TEXTURE1D:
if ((pHeader->flags & DDS_HEIGHT) && pHeader->height != 1)
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
metadata.width = pHeader->width;
metadata.height = 1;
metadata.depth = 1;
metadata.dimension = TEX_DIMENSION_TEXTURE1D;
break;
case DDS_DIMENSION_TEXTURE2D:
if (xboxext->miscFlag & DDS_RESOURCE_MISC_TEXTURECUBE)
{
metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
metadata.arraySize *= 6;
}
metadata.width = pHeader->width;
metadata.height = pHeader->height;
metadata.depth = 1;
metadata.dimension = TEX_DIMENSION_TEXTURE2D;
break;
case DDS_DIMENSION_TEXTURE3D:
if (!(pHeader->flags & DDS_HEADER_FLAGS_VOLUME))
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
if (metadata.arraySize > 1)
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
metadata.width = pHeader->width;
metadata.height = pHeader->height;
metadata.depth = pHeader->depth;
metadata.dimension = TEX_DIMENSION_TEXTURE3D;
break;
default:
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
if (static_cast<XboxTileMode>(xboxext->tileMode) == c_XboxTileModeInvalid)
{
return HRESULT_FROM_WIN32(ERROR_INVALID_DATA);
}
#if defined(_GAMING_XBOX_SCARLETT) || defined(_USE_SCARLETT)
else if (!(xboxext->tileMode & XBOX_TILEMODE_SCARLETT))
{
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
#else
else if (xboxext->tileMode & XBOX_TILEMODE_SCARLETT)
{
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
#endif
static_assert(static_cast<int>(TEX_MISC2_ALPHA_MODE_MASK) == static_cast<int>(DDS_MISC_FLAGS2_ALPHA_MODE_MASK), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_UNKNOWN) == static_cast<int>(DDS_ALPHA_MODE_UNKNOWN), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_STRAIGHT) == static_cast<int>(DDS_ALPHA_MODE_STRAIGHT), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_PREMULTIPLIED) == static_cast<int>(DDS_ALPHA_MODE_PREMULTIPLIED), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_OPAQUE) == static_cast<int>(DDS_ALPHA_MODE_OPAQUE), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_CUSTOM) == static_cast<int>(DDS_ALPHA_MODE_CUSTOM), "DDS header mismatch");
metadata.miscFlags2 = xboxext->miscFlags2;
if (tmode)
{
*tmode = static_cast<XboxTileMode>(xboxext->tileMode & ~XBOX_TILEMODE_SCARLETT);
}
if (baseAlignment)
*baseAlignment = xboxext->baseAlignment;
if (dataSize)
*dataSize = xboxext->dataSize;
// Handle DDS-specific metadata
if (ddPixelFormat)
{
ddPixelFormat->size = pHeader->ddspf.size;
ddPixelFormat->flags = pHeader->ddspf.flags;
ddPixelFormat->fourCC = pHeader->ddspf.fourCC;
ddPixelFormat->RGBBitCount = pHeader->ddspf.RGBBitCount;
ddPixelFormat->RBitMask = pHeader->ddspf.RBitMask;
ddPixelFormat->GBitMask = pHeader->ddspf.GBitMask;
ddPixelFormat->BBitMask = pHeader->ddspf.BBitMask;
ddPixelFormat->ABitMask = pHeader->ddspf.ABitMask;
}
return S_OK;
}
}
//=====================================================================================
// Entry-points
//=====================================================================================
//-------------------------------------------------------------------------------------
// Encodes DDS file header (magic value, header, XBOX extended header)
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::EncodeDDSHeader(
const XboxImage& xbox,
uint8_t* pDestination,
size_t maxsize) noexcept
{
if (!pDestination)
return E_INVALIDARG;
if (maxsize < DDS_XBOX_HEADER_SIZE)
return E_NOT_SUFFICIENT_BUFFER;
*reinterpret_cast<uint32_t*>(pDestination) = DDS_MAGIC;
auto header = reinterpret_cast<DDS_HEADER*>(reinterpret_cast<uint8_t*>(pDestination) + sizeof(uint32_t));
memset(header, 0, sizeof(DDS_HEADER));
header->size = sizeof(DDS_HEADER);
header->flags = DDS_HEADER_FLAGS_TEXTURE;
header->caps = DDS_SURFACE_FLAGS_TEXTURE;
auto& metadata = xbox.GetMetadata();
if (metadata.mipLevels > 0)
{
header->flags |= DDS_HEADER_FLAGS_MIPMAP;
if (metadata.mipLevels > UINT32_MAX)
return E_INVALIDARG;
header->mipMapCount = static_cast<uint32_t>(metadata.mipLevels);
if (header->mipMapCount > 1)
header->caps |= DDS_SURFACE_FLAGS_MIPMAP;
}
switch (metadata.dimension)
{
case TEX_DIMENSION_TEXTURE1D:
if (metadata.width > UINT32_MAX)
return E_INVALIDARG;
header->width = static_cast<uint32_t>(metadata.width);
header->height = header->depth = 1;
break;
case TEX_DIMENSION_TEXTURE2D:
if (metadata.height > UINT32_MAX
|| metadata.width > UINT32_MAX)
return E_INVALIDARG;
header->height = static_cast<uint32_t>(metadata.height);
header->width = static_cast<uint32_t>(metadata.width);
header->depth = 1;
if (metadata.IsCubemap())
{
header->caps |= DDS_SURFACE_FLAGS_CUBEMAP;
header->caps2 |= DDS_CUBEMAP_ALLFACES;
}
break;
case TEX_DIMENSION_TEXTURE3D:
if (metadata.height > UINT32_MAX
|| metadata.width > UINT32_MAX
|| metadata.depth > UINT32_MAX)
return E_INVALIDARG;
header->flags |= DDS_HEADER_FLAGS_VOLUME;
header->caps2 |= DDS_FLAGS_VOLUME;
header->height = static_cast<uint32_t>(metadata.height);
header->width = static_cast<uint32_t>(metadata.width);
header->depth = static_cast<uint32_t>(metadata.depth);
break;
default:
return E_FAIL;
}
size_t rowPitch, slicePitch;
ComputePitch(metadata.format, metadata.width, metadata.height, rowPitch, slicePitch, CP_FLAGS_NONE);
if (slicePitch > UINT32_MAX
|| rowPitch > UINT32_MAX)
return E_FAIL;
if (IsCompressed(metadata.format))
{
header->flags |= DDS_HEADER_FLAGS_LINEARSIZE;
header->pitchOrLinearSize = static_cast<uint32_t>(slicePitch);
}
else
{
header->flags |= DDS_HEADER_FLAGS_PITCH;
header->pitchOrLinearSize = static_cast<uint32_t>(rowPitch);
}
memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_XBOX, sizeof(DDS_PIXELFORMAT));
// Setup XBOX extended header
auto xboxext = reinterpret_cast<DDS_HEADER_XBOX*>(reinterpret_cast<uint8_t*>(header) + sizeof(DDS_HEADER));
memset(xboxext, 0, sizeof(DDS_HEADER_XBOX));
xboxext->dxgiFormat = metadata.format;
xboxext->resourceDimension = metadata.dimension;
if (metadata.arraySize > UINT32_MAX)
return E_INVALIDARG;
static_assert(static_cast<int>(TEX_MISC_TEXTURECUBE) == static_cast<int>(DDS_RESOURCE_MISC_TEXTURECUBE), "DDS header mismatch");
xboxext->miscFlag = metadata.miscFlags & ~static_cast<uint32_t>(TEX_MISC_TEXTURECUBE);
if (metadata.miscFlags & TEX_MISC_TEXTURECUBE)
{
xboxext->miscFlag |= TEX_MISC_TEXTURECUBE;
assert((metadata.arraySize % 6) == 0);
xboxext->arraySize = static_cast<UINT>(metadata.arraySize / 6);
}
else
{
xboxext->arraySize = static_cast<UINT>(metadata.arraySize);
}
static_assert(static_cast<int>(TEX_MISC2_ALPHA_MODE_MASK) == static_cast<int>(DDS_MISC_FLAGS2_ALPHA_MODE_MASK), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_UNKNOWN) == static_cast<int>(DDS_ALPHA_MODE_UNKNOWN), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_STRAIGHT) == static_cast<int>(DDS_ALPHA_MODE_STRAIGHT), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_PREMULTIPLIED) == static_cast<int>(DDS_ALPHA_MODE_PREMULTIPLIED), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_OPAQUE) == static_cast<int>(DDS_ALPHA_MODE_OPAQUE), "DDS header mismatch");
static_assert(static_cast<int>(TEX_ALPHA_MODE_CUSTOM) == static_cast<int>(DDS_ALPHA_MODE_CUSTOM), "DDS header mismatch");
xboxext->miscFlags2 = metadata.miscFlags2;
#if defined(_GAMING_XBOX_SCARLETT) || defined(_USE_SCARLETT)
xboxext->tileMode = static_cast<uint32_t>(xbox.GetTileMode()) | XBOX_TILEMODE_SCARLETT;
#else
xboxext->tileMode = static_cast<uint32_t>(xbox.GetTileMode());
#endif
xboxext->baseAlignment = xbox.GetAlignment();
xboxext->dataSize = xbox.GetSize();
#ifdef _GXDK_VER
xboxext->xdkVer = _GXDK_VER;
#elif defined(_XDK_VER)
xboxext->xdkVer = _XDK_VER;
#endif
return S_OK;
}
//-------------------------------------------------------------------------------------
// Obtain metadata from DDS file in memory/on disk
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::GetMetadataFromDDSMemory(
const uint8_t* pSource,
size_t size,
TexMetadata& metadata,
bool& isXbox)
{
return Xbox::GetMetadataFromDDSMemoryEx(pSource, size, metadata, isXbox, nullptr);
}
_Use_decl_annotations_
HRESULT Xbox::GetMetadataFromDDSMemoryEx(
const uint8_t* pSource,
size_t size,
TexMetadata& metadata,
bool& isXbox,
DDSMetaData* ddPixelFormat)
{
if (!pSource || !size)
return E_INVALIDARG;
isXbox = false;
HRESULT hr = DecodeDDSHeader(pSource, size, metadata, ddPixelFormat, nullptr, nullptr, nullptr);
if (hr == S_FALSE)
{
hr = DirectX::GetMetadataFromDDSMemoryEx(pSource, size, DirectX::DDS_FLAGS_NONE, metadata, ddPixelFormat);
}
else if (SUCCEEDED(hr))
{
isXbox = true;
}
return hr;
}
_Use_decl_annotations_
HRESULT Xbox::GetMetadataFromDDSFile(
const wchar_t* szFile,
TexMetadata& metadata,
bool& isXbox)
{
return Xbox::GetMetadataFromDDSFileEx(szFile, metadata, isXbox, nullptr);
}
_Use_decl_annotations_
HRESULT Xbox::GetMetadataFromDDSFileEx(
const wchar_t* szFile,
TexMetadata& metadata,
bool& isXbox,
DDSMetaData* ddPixelFormat)
{
if (!szFile)
return E_INVALIDARG;
isXbox = false;
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
#else
ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
#endif
if (!hFile)
{
return HRESULT_FROM_WIN32(GetLastError());
}
// Get the file size
FILE_STANDARD_INFO fileInfo;
if (!GetFileInformationByHandleEx(hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo)))
{
return HRESULT_FROM_WIN32(GetLastError());
}
// File is too big for 32-bit allocation, so reject read (4 GB should be plenty large enough for a valid DDS file)
if (fileInfo.EndOfFile.HighPart > 0)
{
return HRESULT_FROM_WIN32(ERROR_FILE_TOO_LARGE);
}
// Need at least enough data to fill the standard header and magic number to be a valid DDS
if (fileInfo.EndOfFile.LowPart < DDS_MIN_HEADER_SIZE)
{
return E_FAIL;
}
// Read the header in (including extended header if present)
uint8_t header[DDS_XBOX_HEADER_SIZE] = {};
DWORD bytesRead = 0;
if (!ReadFile(hFile.get(), header, DDS_XBOX_HEADER_SIZE, &bytesRead, nullptr))
{
return HRESULT_FROM_WIN32(GetLastError());
}
HRESULT hr = DecodeDDSHeader(header, bytesRead, metadata, ddPixelFormat, nullptr, nullptr, nullptr);
if (hr == S_FALSE)
{
hr = DirectX::GetMetadataFromDDSMemoryEx(header, bytesRead, DirectX::DDS_FLAGS_NONE, metadata, ddPixelFormat);
}
else if (SUCCEEDED(hr))
{
isXbox = true;
}
return hr;
}
//-------------------------------------------------------------------------------------
// Load a DDS file in memory
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::LoadFromDDSMemory(
const uint8_t* pSource,
size_t size,
TexMetadata* metadata,
XboxImage& xbox)
{
return Xbox::LoadFromDDSMemoryEx(pSource, size, metadata, nullptr, xbox);
}
_Use_decl_annotations_
HRESULT Xbox::LoadFromDDSMemoryEx(
const uint8_t* pSource,
size_t size,
TexMetadata* metadata,
DDSMetaData* ddPixelFormat,
XboxImage& xbox)
{
if (!pSource || !size)
return E_INVALIDARG;
xbox.Release();
TexMetadata mdata;
uint32_t dataSize;
uint32_t baseAlignment;
XboxTileMode tmode;
HRESULT hr = DecodeDDSHeader(pSource, size, mdata, ddPixelFormat, &tmode, &dataSize, &baseAlignment);
if (hr == S_FALSE)
{
// It's a DDS, but not an XBOX variant
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
if (FAILED(hr))
{
return hr;
}
if (!dataSize || !baseAlignment)
{
return E_FAIL;
}
if (size <= DDS_XBOX_HEADER_SIZE)
{
return E_FAIL;
}
// Copy tiled data
const size_t remaining = size - DDS_XBOX_HEADER_SIZE;
if (remaining < dataSize)
{
return HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
hr = xbox.Initialize(mdata, tmode, dataSize, baseAlignment);
if (FAILED(hr))
return hr;
assert(xbox.GetPointer() != nullptr);
memcpy(xbox.GetPointer(), reinterpret_cast<const uint8_t*>(pSource) + DDS_XBOX_HEADER_SIZE, dataSize);
if (metadata)
memcpy(metadata, &mdata, sizeof(TexMetadata));
return S_OK;
}
//-------------------------------------------------------------------------------------
// Load a DDS file from disk
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::LoadFromDDSFile(
const wchar_t* szFile,
TexMetadata* metadata,
XboxImage& xbox)
{
return Xbox::LoadFromDDSFileEx(szFile, metadata, nullptr, xbox);
}
_Use_decl_annotations_
HRESULT Xbox::LoadFromDDSFileEx(
const wchar_t* szFile,
TexMetadata* metadata,
DDSMetaData* ddPixelFormat,
XboxImage& xbox)
{
if (!szFile)
return E_INVALIDARG;
xbox.Release();
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
#else
ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
#endif
if (!hFile)
{
return HRESULT_FROM_WIN32(GetLastError());
}
// Get the file size
FILE_STANDARD_INFO fileInfo;
if (!GetFileInformationByHandleEx(hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo)))
{
return HRESULT_FROM_WIN32(GetLastError());
}
// File is too big for 32-bit allocation, so reject read (4 GB should be plenty large enough for a valid DDS file)
if (fileInfo.EndOfFile.HighPart > 0)
{
return HRESULT_FROM_WIN32(ERROR_FILE_TOO_LARGE);
}
// Need at least enough data to fill the standard header and magic number to be a valid DDS
if (fileInfo.EndOfFile.LowPart < DDS_MIN_HEADER_SIZE)
{
return E_FAIL;
}
// Read the header in (including extended header if present)
uint8_t header[DDS_XBOX_HEADER_SIZE] = {};
DWORD bytesRead = 0;
if (!ReadFile(hFile.get(), header, DDS_XBOX_HEADER_SIZE, &bytesRead, nullptr))
{
return HRESULT_FROM_WIN32(GetLastError());
}
TexMetadata mdata;
XboxTileMode tmode;
uint32_t dataSize;
uint32_t baseAlignment;
HRESULT hr = DecodeDDSHeader(header, bytesRead, mdata, ddPixelFormat, &tmode, &dataSize, &baseAlignment);
if (hr == S_FALSE)
{
// It's a DDS, but not an XBOX variant
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
if (FAILED(hr))
return hr;
if (!dataSize || !baseAlignment)
{
return E_FAIL;
}
// Read tiled data
const DWORD remaining = fileInfo.EndOfFile.LowPart - DDS_XBOX_HEADER_SIZE;
if (remaining == 0)
return E_FAIL;
if (remaining < dataSize)
{
return HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
hr = xbox.Initialize(mdata, tmode, dataSize, baseAlignment);
if (FAILED(hr))
return hr;
assert(xbox.GetPointer() != nullptr);
if (!ReadFile(hFile.get(), xbox.GetPointer(), dataSize, &bytesRead, nullptr))
{
xbox.Release();
return HRESULT_FROM_WIN32(GetLastError());
}
if (metadata)
memcpy(metadata, &mdata, sizeof(TexMetadata));
return S_OK;
}
//-------------------------------------------------------------------------------------
// Save a DDS file to memory
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::SaveToDDSMemory(const XboxImage& xbox, Blob& blob)
{
if (!xbox.GetPointer() || !xbox.GetSize() || !xbox.GetAlignment())
return E_INVALIDARG;
blob.Release();
HRESULT hr = blob.Initialize(DDS_XBOX_HEADER_SIZE + xbox.GetSize());
if (FAILED(hr))
return hr;
// Copy header
auto pDestination = blob.GetBufferPointer();
assert(pDestination);
hr = EncodeDDSHeader(xbox, pDestination, DDS_XBOX_HEADER_SIZE);
if (FAILED(hr))
{
blob.Release();
return hr;
}
// Copy tiled data
const size_t remaining = blob.GetBufferSize() - DDS_XBOX_HEADER_SIZE;
pDestination += DDS_XBOX_HEADER_SIZE;
if (!remaining)
{
blob.Release();
return E_FAIL;
}
if (remaining < xbox.GetSize())
{
blob.Release();
return E_UNEXPECTED;
}
memcpy(pDestination, xbox.GetPointer(), xbox.GetSize());
return S_OK;
}
//-------------------------------------------------------------------------------------
// Save a DDS file to disk
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Xbox::SaveToDDSFile(const XboxImage& xbox, const wchar_t* szFile)
{
if (!szFile || !xbox.GetPointer() || !xbox.GetSize() || !xbox.GetAlignment())
return E_INVALIDARG;
// Create DDS Header
uint8_t header[DDS_XBOX_HEADER_SIZE] = {};
HRESULT hr = EncodeDDSHeader(xbox, header, DDS_XBOX_HEADER_SIZE);
if (FAILED(hr))
return hr;
// Create file and write header
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
ScopedHandle hFile(safe_handle(CreateFile2(szFile,
GENERIC_WRITE, 0, CREATE_ALWAYS, nullptr)));
#else
ScopedHandle hFile(safe_handle(CreateFileW(szFile,
GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr)));
#endif
if (!hFile)
{
return HRESULT_FROM_WIN32(GetLastError());
}
DWORD bytesWritten;
if (!WriteFile(hFile.get(), header, static_cast<DWORD>(DDS_XBOX_HEADER_SIZE), &bytesWritten, nullptr))
{
return HRESULT_FROM_WIN32(GetLastError());
}
if (bytesWritten != DDS_XBOX_HEADER_SIZE)
{
return E_FAIL;
}
// Write tiled data
if (!WriteFile(hFile.get(), xbox.GetPointer(), static_cast<DWORD>(xbox.GetSize()), &bytesWritten, nullptr))
{
return HRESULT_FROM_WIN32(GetLastError());
}
if (bytesWritten != xbox.GetSize())
{
return E_FAIL;
}
return S_OK;
}
//--------------------------------------------------------------------------------------
// Adapters for /Zc:wchar_t- clients
#if defined(_MSC_VER) && !defined(_NATIVE_WCHAR_T_DEFINED)
namespace Xbox
{
HRESULT __cdecl GetMetadataFromDDSFile(
_In_z_ const __wchar_t* szFile,
_Out_ DirectX::TexMetadata& metadata,
_Out_ bool& isXbox)
{
return GetMetadataFromDDSFile(reinterpret_cast<const unsigned short*>(szFile), metadata, isXbox);
}
HRESULT __cdecl GetMetadataFromDDSFileEx(
_In_z_ const __wchar_t* szFile,
_Out_ DirectX::TexMetadata& metadata,
_Out_ bool& isXbox,
_Out_opt_ DirectX::DDSMetaData* ddPixelFormat)
{
return GetMetadataFromDDSFileEx(reinterpret_cast<const unsigned short*>(szFile), metadata, isXbox, ddPixelFormat);
}
HRESULT __cdecl LoadFromDDSFile(
_In_z_ const __wchar_t* szFile,
_Out_opt_ DirectX::TexMetadata* metadata,
_Out_ XboxImage& image)
{
return LoadFromDDSFile(reinterpret_cast<const unsigned short*>(szFile), metadata, image);
}
HRESULT __cdecl LoadFromDDSFileEx(
_In_z_ const __wchar_t* szFile,
_Out_opt_ DirectX::TexMetadata* metadata,
_Out_opt_ DirectX::DDSMetaData* ddPixelFormat,
_Out_ XboxImage& image)
{
return LoadFromDDSFileEx(reinterpret_cast<const unsigned short*>(szFile), metadata, ddPixelFormat, image);
}
HRESULT __cdecl SaveToDDSFile(_In_ const XboxImage& xbox, _In_z_ const __wchar_t* szFile)
{
return SaveToDDSFile(xbox, reinterpret_cast<const unsigned short*>(szFile));
}
}
#endif // !_NATIVE_WCHAR_T_DEFINED
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