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badtails flag to enable loading of legacy DXTn DDS files with incomplete mipchain tails

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This commit is contained in:
Chuck Walbourn
2016-09-11 14:29:10 -07:00
parent 04143d621c
commit 7275893dbe
4 changed files with 103 additions and 19 deletions
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5
Texconv/texconv.cpp
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@@ -55,6 +55,7 @@ enum OPTIONS // Note: dwOptions below assumes 64 or less options.
OPT_HFLIP,
OPT_VFLIP,
OPT_DDS_DWORD_ALIGN,
OPT_DDS_BAD_DXTN_TAILS,
OPT_USE_DX10,
OPT_NOLOGO,
OPT_TIMING,
@@ -116,6 +117,7 @@ SValue g_pOptions[] =
{ L"hflip", OPT_HFLIP },
{ L"vflip", OPT_VFLIP },
{ L"dword", OPT_DDS_DWORD_ALIGN },
{ L"badtails", OPT_DDS_BAD_DXTN_TAILS },
{ L"dx10", OPT_USE_DX10 },
{ L"nologo", OPT_NOLOGO },
{ L"timing", OPT_TIMING },
@@ -529,6 +531,7 @@ void PrintUsage()
wprintf( L"\n (DDS input only)\n");
wprintf( L" -t{u|f} TYPELESS format is treated as UNORM or FLOAT\n");
wprintf( L" -dword Use DWORD instead of BYTE alignment\n");
wprintf( L" -badtails Fix for older DXTn with bad mipchain tails\n");
wprintf( L" -xlum expand legacy L8, L16, and A8P8 formats\n");
wprintf( L"\n (DDS output only)\n");
wprintf( L" -dx10 Force use of 'DX10' extended header\n");
@@ -1178,6 +1181,8 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
ddsFlags |= DDS_FLAGS_LEGACY_DWORD;
if ( dwOptions & (DWORD64(1) << OPT_EXPAND_LUMINANCE) )
ddsFlags |= DDS_FLAGS_EXPAND_LUMINANCE;
if ( dwOptions & (DWORD64(1) << OPT_DDS_BAD_DXTN_TAILS) )
ddsFlags |= DDS_FLAGS_BAD_DXTN_TAILS;
hr = LoadFromDDSFile( pConv->szSrc, ddsFlags, &info, *image );
if ( FAILED(hr) )