private bool CreateLayerTextures(bool useMipmaps, OVRPlugin.Sizei size, bool isHdr)
{
if (isExternalSurface)
{
if (externalSurfaceObject == System.IntPtr.Zero)
{
externalSurfaceObject = OVRPlugin.GetLayerAndroidSurfaceObject(layerId);
if (externalSurfaceObject != System.IntPtr.Zero)
{
Debug.LogFormat("GetLayerAndroidSurfaceObject returns {0}", externalSurfaceObject);
if (externalSurfaceObjectCreated != null)
{
externalSurfaceObjectCreated();
}
}
}
return(false);
}
bool needsCopy = false;
if (stageCount <= 0)
{
return(false);
}
// For newer SDKs, blit directly to the surface that will be used in compositing.
if (layerTextures == null)
{
layerTextures = new LayerTexture[texturesPerStage];
}
for (int eyeId = 0; eyeId < texturesPerStage; ++eyeId)
{
if (layerTextures[eyeId].swapChain == null)
{
layerTextures[eyeId].swapChain = new Texture[stageCount];
}
if (layerTextures[eyeId].swapChainPtr == null)
{
layerTextures[eyeId].swapChainPtr = new IntPtr[stageCount];
}
for (int stage = 0; stage < stageCount; ++stage)
{
Texture sc = layerTextures[eyeId].swapChain[stage];
IntPtr scPtr = layerTextures[eyeId].swapChainPtr[stage];
if (sc != null && scPtr != IntPtr.Zero && size.w == sc.width && size.h == sc.height)
{
continue;
}
if (scPtr == IntPtr.Zero)
{
scPtr = OVRPlugin.GetLayerTexture(layerId, stage, (OVRPlugin.Eye)eyeId);
}
if (scPtr == IntPtr.Zero)
{
continue;
}
var txFormat = (isHdr) ? TextureFormat.RGBAHalf : TextureFormat.RGBA32;
if (currentOverlayShape != OverlayShape.Cubemap && currentOverlayShape != OverlayShape.OffcenterCubemap)
{
sc = Texture2D.CreateExternalTexture(size.w, size.h, txFormat, useMipmaps, true, scPtr);
}
#if UNITY_2017_1_OR_NEWER
else
{
sc = Cubemap.CreateExternalTexture(size.w, txFormat, useMipmaps, scPtr);
}
#endif
layerTextures[eyeId].swapChain[stage] = sc;
layerTextures[eyeId].swapChainPtr[stage] = scPtr;
needsCopy = true;
}
}
return(needsCopy);
}