internal static bool ConvertTexturesToReadableFormat(TexturePropertyData texturePropertyData,
MB_AtlasesAndRects[] resultAtlasesAndRectSlices,
bool[] hasTexForProperty, List <ShaderTextureProperty> textureShaderProperties,
MB3_TextureCombiner combiner,
MB2_LogLevel logLevel,
List <Texture2D> createdTemporaryTextureAssets,
MB2_EditorMethodsInterface textureEditorMethods)
{
for (int propIdx = 0; propIdx < hasTexForProperty.Length; propIdx++)
{
if (!hasTexForProperty[propIdx])
{
continue;
}
TextureFormat format = texturePropertyData.formats[propIdx];
if (!textureEditorMethods.TextureImporterFormatExistsForTextureFormat(format))
{
Debug.LogError("Could not find target importer format matching " + format);
return(false);
}
int numSlices = resultAtlasesAndRectSlices.Length;
int targetWidth = (int)texturePropertyData.sizes[propIdx].x;
int targetHeight = (int)texturePropertyData.sizes[propIdx].y;
for (int sliceIdx = 0; sliceIdx < numSlices; sliceIdx++)
{
Texture2D sliceTex = resultAtlasesAndRectSlices[sliceIdx].atlases[propIdx];
Debug.Assert(sliceTex != null, "sliceIdx " + sliceIdx + " " + propIdx);
if (sliceTex != null)
{
if (!MBVersion.IsTextureReadable(sliceTex))
{
textureEditorMethods.SetReadWriteFlag(sliceTex, true, true);
}
bool isAsset = textureEditorMethods.IsAnAsset(sliceTex);
if (logLevel >= MB2_LogLevel.trace)
{
Debug.Log("Considering format of texture: " + sliceTex + " format:" + sliceTex.format);
}
if ((sliceTex.width != targetWidth || sliceTex.height != targetHeight) ||
(!isAsset && sliceTex.format != format))
{
// Do this the horrible hard way. It is only possible to resize textures in TrueColor formats,
// And only possible to switch formats using the Texture importer.
// Create a resized temporary texture asset in ARGB32 format. Then set its texture format and reimport
resultAtlasesAndRectSlices[sliceIdx].atlases[propIdx] = textureEditorMethods.CreateTemporaryAssetCopy(textureShaderProperties[propIdx], sliceTex, targetWidth, targetHeight, format, logLevel);
createdTemporaryTextureAssets.Add(resultAtlasesAndRectSlices[sliceIdx].atlases[propIdx]);
}
else if (sliceTex.format != format)
{
textureEditorMethods.ConvertTextureFormat_PlatformOverride(sliceTex, format, textureShaderProperties[propIdx].isNormalMap);
}
}
else
{
}
if (resultAtlasesAndRectSlices[sliceIdx].atlases[propIdx].format != format)
{
Debug.LogError("Could not convert texture to format " + format +
". This can happen if the target build platform in build settings does not support textures in this format." +
" It may be necessary to switch the build platform in order to build texture arrays in this format.");
return(false);
}
}
}
return(true);
}
