Function LoadDDS

trinityal/tests/WithValidRenderContextFixture.cpp:154–184

}

::testing::AssertionResult LoadDDS( const char* filePath, uint32_t& width, uint32_t& height, std::unique_ptr<uint8_t[]>& data )
{
	FILE* f;
	if( fopen_s( &f, filePath, "rb" ) )
	{
		return ::testing::AssertionFailure() << "failed to open file " << filePath;
	}
	ON_BLOCK_EXIT( [=] { fclose( f ); } );

	DDS_HEADER header;
	if( 1 != fread( &header, sizeof( header ), 1, f ) )
	{
		return ::testing::AssertionFailure() << "failed to read DDS header from " << filePath;
	}

	width = header.dwWidth;
	height = header.dwHeight;

	if( width * height * 4 != header.dwPitchOrLinearSize )
	{
		return ::testing::AssertionFailure() << "unexpected DDS file pixel format or pitch " << filePath;
	}

	data.reset( new uint8_t[header.dwPitchOrLinearSize] );

	if( header.dwPitchOrLinearSize != fread( data.get(), 1, header.dwPitchOrLinearSize, f ) )
	{
		return ::testing::AssertionFailure() << "failed to read DDS pixel values " << filePath;
	}
	return ::testing::AssertionSuccess();
}

::testing::AssertionResult CompareWithBitmap( const char* filePath, Tr2TextureAL& rt, Tr2RenderContextAL& renderContext )
{