public static TranscodeFormatTuple?GetFormatsForImage(
IMetaData meta,
ILevelInfo li,
bool linear = false
)
{
TranscodeFormatTuple?formats;
formats = TranscodeFormatHelper.GetPreferredFormat(
meta.hasAlpha,
li.isPowerOfTwo,
li.isSquare,
linear
);
if (!formats.HasValue && meta.hasAlpha)
{
// Fall back to transcode RGB-only to RGBA texture
formats = TranscodeFormatHelper.GetPreferredFormat(
false,
li.isPowerOfTwo,
li.isSquare,
linear
);
}
return(formats);
}
static void InitInternal()
{
initialized = true;
TranscodeFormatHelper.Init();
ktx_basisu_basis_init();
transcoderCountAvailable = UnityEngine.SystemInfo.processorCount;
}
protected virtual TranscodeFormatTuple?GetFormat(IMetaData meta, ILevelInfo li)
{
return(TranscodeFormatHelper.GetFormatsForImage(meta, li));
}
protected override IEnumerator LoadBytesRoutine(NativeArray <byte> data)
{
Texture2D texture = null;
var ktx = new KtxNativeInstance(data);
if (ktx.valid)
{
// TODO: Maybe do this somewhere more central
TranscodeFormatHelper.Init();
var formats = GetFormat(ktx, ktx);
if (formats.HasValue)
{
var gf = formats.Value.format;
#if KTX_VERBOSE
Debug.LogFormat("Transcode to GraphicsFormat {0} ({1})", gf, formats.Value.transcodeFormat);
#endif
Profiler.BeginSample("KtxTranscode");
var job = new KtxTranscodeJob();
var jobHandle = ktx.LoadBytesJob(
ref job,
formats.Value.transcodeFormat
);
Profiler.EndSample();
while (!jobHandle.IsCompleted)
{
yield return(null);
}
jobHandle.Complete();
if (job.result[0] == KtxErrorCode.KTX_SUCCESS)
{
Profiler.BeginSample("LoadBytesRoutineGPUupload");
uint width = ktx.baseWidth;
uint height = ktx.baseHeight;
if (formats.Value.format == GraphicsFormat.RGBA_DXT5_SRGB && !ktx.hasAlpha)
{
// ktx library automatically decides to use the smaller DXT1 instead of DXT5 if no alpha
gf = GraphicsFormat.RGBA_DXT1_SRGB;
}
texture = new Texture2D((int)width, (int)height, gf, TextureCreationFlags.None);
try {
ktx.LoadRawTextureData(texture);
}
catch (UnityException) {
Debug.LogError(ERR_MSG_TRANSCODE_FAILED);
texture = null;
}
Profiler.EndSample();
}
else
{
Debug.LogError(ERR_MSG_TRANSCODE_FAILED);
}
job.result.Dispose();
}
}
ktx.Unload();
OnTextureLoaded(texture);
}
IEnumerator Transcode(KtxNativeInstance ktx, bool linear)
{
// TODO: Maybe do this somewhere more central
TranscodeFormatHelper.Init();
var formats = GetFormat(ktx, ktx, linear);
if (formats.HasValue)
{
var gf = formats.Value.format;
#if KTX_VERBOSE
Debug.LogFormat("Transcode to GraphicsFormat {0} ({1})", gf, formats.Value.transcodeFormat);
#endif
Profiler.BeginSample("KtxTranscode");
var job = new KtxTranscodeJob();
var jobHandle = ktx.LoadBytesJob(
ref job,
formats.Value.transcodeFormat
);
Profiler.EndSample();
while (!jobHandle.IsCompleted)
{
yield return(null);
}
jobHandle.Complete();
if (job.result[0] == KtxErrorCode.KTX_SUCCESS)
{
Profiler.BeginSample("LoadBytesRoutineGPUupload");
uint width = ktx.baseWidth;
uint height = ktx.baseHeight;
if (formats.Value.format == GraphicsFormat.RGBA_DXT5_SRGB && !ktx.hasAlpha)
{
// ktx library automatically decides to use the smaller DXT1 instead of DXT5 if no alpha
#if UNITY_2018_3_OR_NEWER
gf = GraphicsFormat.RGBA_DXT1_SRGB;
#else
gf = GraphicsFormat.RGB_DXT1_SRGB;
#endif
}
try {
texture = ktx.LoadTextureData(gf);
}
catch (UnityException) {
Debug.LogError(ERR_MSG_TRANSCODE_FAILED);
texture = null;
}
Profiler.EndSample();
}
else
{
Debug.LogError(ERR_MSG_TRANSCODE_FAILED);
}
job.result.Dispose();
}
}
protected virtual TranscodeFormatTuple?GetFormat(IMetaData meta, ILevelInfo li, bool linear = false)
{
return(TranscodeFormatHelper.GetFormatsForImage(meta, li, linear));
}
