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Fixed issue when BC decompressing non-standard compressed rowPitch images

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This commit is contained in:
walbourn_cp 2014-09-11 15:23:33 -07:00
parent 209772f248
commit 15d1a22921
1 changed files with 3 additions and 3 deletions
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6
DirectXTex/DirectXTexCompress.cpp
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@ -110,7 +110,7 @@ static HRESULT _CompressBC( _In_ const Image& image, _In_ const Image& result, _
uint8_t* dptr = pDest;
size_t ph = std::min<size_t>( 4, image.height - h );
size_t w = 0;
for( size_t count = 0; count < result.rowPitch; count += blocksize, w += 4 )
for( size_t count = 0; (count < result.rowPitch) && (w < image.width); count += blocksize, w += 4 )
{
size_t pw = std::min<size_t>( 4, image.width - w );
assert( pw > 0 && ph > 0 );
@ -426,7 +426,7 @@ static HRESULT _DecompressBC( _In_ const Image& cImage, _In_ const Image& result
uint8_t* dptr = pDest;
size_t ph = std::min<size_t>( 4, cImage.height - h );
size_t w = 0;
for( size_t count = 0; count < cImage.rowPitch; count += sbpp, w += 4 )
for( size_t count = 0; (count < cImage.rowPitch) && (w < cImage.width); count += sbpp, w += 4 )
{
pfDecode( temp, sptr );
_ConvertScanline( temp, 16, format, cformat, 0 );
@ -512,7 +512,7 @@ bool _IsAlphaAllOpaqueBC( _In_ const Image& cImage )
const uint8_t *ptr = pPixels;
size_t ph = std::min<size_t>( 4, cImage.height - h );
size_t w = 0;
for( size_t count = 0; count < cImage.rowPitch; count += sbpp, w += 4 )
for( size_t count = 0; (count < cImage.rowPitch) && (w < cImage.width); count += sbpp, w += 4 )
{
pfDecode( temp, ptr );