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.

4 files changed, 30 insertions, 12 deletions

diff --git a/platform/android/export/export_plugin.cpp b/platform/android/export/export_plugin.cpp
index a23f7d1d02..9ebb8aa102 100644
--- a/platform/android/export/export_plugin.cpp
+++ b/platform/android/export/export_plugin.cpp
@@ -1711,6 +1711,7 @@ Vector<EditorExportPlatformAndroid::ABI> EditorExportPlatformAndroid::get_enable
 
 void EditorExportPlatformAndroid::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) const {
 	r_features->push_back("etc2");
+	r_features->push_back("astc");
 
 	Vector<ABI> abis = get_enabled_abis(p_preset);
 	for (int i = 0; i < abis.size(); ++i) {
diff --git a/platform/ios/export/export_plugin.cpp b/platform/ios/export/export_plugin.cpp
index 87b599bc81..c6f7ec09b1 100644
--- a/platform/ios/export/export_plugin.cpp
+++ b/platform/ios/export/export_plugin.cpp
@@ -43,6 +43,7 @@
 void EditorExportPlatformIOS::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) const {
 	// Vulkan and OpenGL ES 3.0 both mandate ETC2 support.
 	r_features->push_back("etc2");
+	r_features->push_back("astc");
 
 	Vector<String> architectures = _get_preset_architectures(p_preset);
 	for (int i = 0; i < architectures.size(); ++i) {
diff --git a/platform/macos/export/export_plugin.cpp b/platform/macos/export/export_plugin.cpp
index 5c20016aa5..bb96308a75 100644
--- a/platform/macos/export/export_plugin.cpp
+++ b/platform/macos/export/export_plugin.cpp
@@ -48,16 +48,18 @@
 #endif
 
 void EditorExportPlatformMacOS::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) const {
-	if (p_preset->get("texture_format/s3tc")) {
+	r_features->push_back(p_preset->get("binary_format/architecture"));
+	String architecture = p_preset->get("binary_format/architecture");
+
+	if (architecture == "universal" || architecture == "x86_64") {
 		r_features->push_back("s3tc");
-	}
-	if (p_preset->get("texture_format/etc")) {
-		r_features->push_back("etc");
-	}
-	if (p_preset->get("texture_format/etc2")) {
+		r_features->push_back("bptc");
+	} else if (architecture == "arm64") {
 		r_features->push_back("etc2");
+		r_features->push_back("astc");
+	} else {
+		ERR_PRINT("Invalid architecture");
 	}
-	r_features->push_back(p_preset->get("binary_format/architecture"));
 }
 
 bool EditorExportPlatformMacOS::get_export_option_visibility(const EditorExportPreset *p_preset, const String &p_option, const HashMap<StringName, Variant> &p_options) const {
@@ -210,10 +212,6 @@ void EditorExportPlatformMacOS::get_export_options(List<ExportOption> *r_options
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "privacy/removable_volumes_usage_description", PROPERTY_HINT_PLACEHOLDER_TEXT, "Provide a message if you need to use removable volumes"), ""));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::DICTIONARY, "privacy/removable_volumes_usage_description_localized", PROPERTY_HINT_LOCALIZABLE_STRING), Dictionary()));
 
-	r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "texture_format/s3tc"), true));
-	r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "texture_format/etc"), false));
-	r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "texture_format/etc2"), false));
-
 	String run_script = "#!/usr/bin/env bash\n"
 						"unzip -o -q \"{temp_dir}/{archive_name}\" -d \"{temp_dir}\"\n"
 						"open \"{temp_dir}/{exe_name}.app\" --args {cmd_args}";
@@ -1766,6 +1764,24 @@ bool EditorExportPlatformMacOS::has_valid_export_configuration(const Ref<EditorE
 		}
 	}
 
+	String architecture = p_preset->get("binary_format/architecture");
+
+	if (architecture == "universal" || architecture == "x86_64") {
+		const String bc_error = test_bc();
+		if (!bc_error.is_empty()) {
+			valid = false;
+			err += bc_error;
+		}
+	} else if (architecture == "arm64") {
+		const String etc_error = test_etc2();
+		if (!etc_error.is_empty()) {
+			valid = false;
+			err += etc_error;
+		}
+	} else {
+		ERR_PRINT("Invalid architecture");
+	}
+
 	// Look for export templates (official templates, check only is custom templates are not set).
 	if (!dvalid || !rvalid) {
 		dvalid = exists_export_template("macos.zip", &err);
diff --git a/platform/windows/display_server_windows.cpp b/platform/windows/display_server_windows.cpp
index 89a7114583..ebd0733c55 100644
--- a/platform/windows/display_server_windows.cpp
+++ b/platform/windows/display_server_windows.cpp
@@ -1626,7 +1626,7 @@ Vector2i DisplayServerWindows::ime_get_selection() const {
 	ImmGetCompositionStringW(wd.im_himc, GCS_COMPSTR, string, length);
 
 	int32_t utf32_cursor = 0;
-	for (int32_t i = 0; i < length / sizeof(wchar_t); i++) {
+	for (int32_t i = 0; i < length / int32_t(sizeof(wchar_t)); i++) {
 		if ((string[i] & 0xfffffc00) == 0xd800) {
 			i++;
 		}