Function Create2DTexture

trinity/Tr2ImageIOHelpers.cpp:94–129

namespace Tr2ImageIOHelpers
{
bool Create2DTexture( ImageIO::HostBitmap& bitmap, Tr2TextureAL& out, uint32_t& memoryUse, Tr2PrimaryRenderContext& renderContext, Tr2RenderContextEnum::BufferUsage usage )
{
	CCP_STATS_ZONE( __FUNCTION__ );

	if( !bitmap.IsValid() )
	{
		return false;
	}

	BeTimer create;

	const unsigned trueMipLevelCount = bitmap.GetTrueMipCount();

	std::vector<Tr2SubresourceData> initData( trueMipLevelCount * bitmap.GetArraySize() );

	for( unsigned j = 0; j < bitmap.GetArraySize(); ++j )
	{
		for( unsigned i = 0; i != trueMipLevelCount; ++i )
		{
			Tr2SubresourceData& srd = initData[i + j * trueMipLevelCount];

			srd.m_sysMem = const_cast<char*>( bitmap.GetMipRawData( i, j ) );
			srd.m_sysMemSlicePitch = bitmap.GetMipSize( i );
			srd.m_sysMemPitch = bitmap.GetMipPitch( i );

			if( !srd.m_sysMem )
			{
				return false;
			}

			memoryUse += srd.m_sysMemSlicePitch;
		}
	}

	return !FAILED( out.Create( bitmap, Tr2GpuUsage::SHADER_RESOURCE, Tr2CpuUsage::READ, &initData[0], renderContext ) );
}

bool CreateTexture( ImageIO::HostBitmap& bitmap, Tr2TextureAL& out, uint32_t& memoryUse, Tr2PrimaryRenderContext& renderContext, Tr2RenderContextEnum::BufferUsage usage )
{