SaveToDisk()

bool Spices::Transcoder::SaveToDisk ( ktxTexture2 * texture, const std::string & filePath )

static

Save a src image data to a ktx file.

Parameters

[in]	texture	ktxtexture.
[in]	filePath	saved ktx file path.

Returns

Returns true if finish all task.

Instance a ktxBasisParams. etc1s: unlosslessly compressed, host memory << device memory. uastc: losslessly compressed, host memory == device memory.

Set other BasisLZ / ETC1S or UASTC params to change default quality settings.

Write to disk.

Instance a ktxBasisParams. etc1s: unlosslessly compressed, host memory << device memory. uastc: losslessly compressed, host memory == device memory.

Set other BasisLZ / ETC1S or UASTC params to change default quality settings.

Write to disk.

Definition at line 77 of file Transcoder.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        ktxBasisParams                     params{0};
        params.structSize                = sizeof(params);
        params.uastc                     = KTX_TRUE;
        params.verbose                   = KTX_FALSE;
        params.noSSE                     = KTX_TRUE;
 
        // etc1s
        params.threadCount               = std::thread::hardware_concurrency();
        params.compressionLevel          = 0;
        params.qualityLevel              = 128;
        
        // uastc
        params.uastcFlags                = KTX_PACK_UASTC_LEVEL_FASTEST;
        params.uastcRDO                  = KTX_TRUE;
        params.uastcRDONoMultithreading  = KTX_TRUE;
 
        KTX_CHECK(ktxTexture2_CompressBasisEx(texture, &params))
 
        
        std::filesystem::create_directories(std::filesystem::path(filePath).parent_path());
        ktxTexture_WriteToNamedFile(ktxTexture(texture), filePath.c_str());
        ktxTexture_Destroy(ktxTexture(texture));
 
#if 0   // Disable auto mipmaps, we will manually generate mipmaps.
 
        KTX_CHECK(ktxTexture2_CreateFromNamedFile(filePath.c_str(), KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT, &texture))
        texture->generateMipmaps = KTX_TRUE;
        
        ktxTexture_WriteToNamedFile(ktxTexture(texture), filePath.c_str());
        ktxTexture_Destroy(ktxTexture(texture));
 
#endif
 
        return true;
    }