Refactor high quality texture import

* Only two texture import modes for low/high quality now:
  * S3TC/BPTC
  * ETC2/ASTC
* Makes sense given this is the general preferred and most compatible combination in most platforms.
* Removed lossy_quality from VRAM texture compression options. It was unused everywhere.
* Added a new "high_quality" option to texture import. When enabled, it uses BPTC/ASTC (BC7/ASTC4x4) instead of S3TC/ETC2 (DXT1-5/ETC2,ETCA).
* Changed MacOS export settings so required texture formats depend on the architecture selected.

This solves the following problems:

* Makes it simpler to import textures as high quality, without having to worry about the specific format used.
* As the editor can now run on platforms such as web, Mac OS with Apple Silicion and Android, it should no longer be assumed that S3TC/BPTC is available by default for it.

1 files changed, 4 insertions, 0 deletions

diff --git a/servers/rendering/renderer_rd/storage_rd/utilities.cpp b/servers/rendering/renderer_rd/storage_rd/utilities.cpp
index d2f5e6f224..cabac4e9ee 100644
--- a/servers/rendering/renderer_rd/storage_rd/utilities.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/utilities.cpp
@@ -286,6 +286,10 @@ bool Utilities::has_os_feature(const String &p_feature) const {
 		return true;
 	}
 
+	if (p_feature == "astc" && RD::get_singleton()->texture_is_format_supported_for_usage(RD::DATA_FORMAT_ASTC_4x4_UNORM_BLOCK, RD::TEXTURE_USAGE_SAMPLING_BIT)) {
+		return true;
+	}
+
 	return false;
 }