godot/modules/gltf/extensions/gltf_document_extension_texture_webp.cpp

/**************************************************************************/
/*  gltf_document_extension_texture_webp.cpp                              */
/**************************************************************************/
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "gltf_document_extension_texture_webp.h"

// Import process.
Error GLTFDocumentExtensionTextureWebP::import_preflight(Ref<GLTFState> p_state, Vector<String> p_extensions) {
	if (!p_extensions.has("EXT_texture_webp")) {
		return ERR_SKIP;
	}
	return OK;
}

Vector<String> GLTFDocumentExtensionTextureWebP::get_supported_extensions() {
	Vector<String> ret;
	ret.push_back("EXT_texture_webp");
	return ret;
}

Error GLTFDocumentExtensionTextureWebP::parse_image_data(Ref<GLTFState> p_state, const PackedByteArray &p_image_data, const String &p_mime_type, Ref<Image> r_image) {
	if (p_mime_type == "image/webp") {
		return r_image->load_webp_from_buffer(p_image_data);
	}
	return OK;
}

String GLTFDocumentExtensionTextureWebP::get_image_file_extension() {
	return ".webp";
}

Error GLTFDocumentExtensionTextureWebP::parse_texture_json(Ref<GLTFState> p_state, const Dictionary &p_texture_json, Ref<GLTFTexture> r_gltf_texture) {
	if (!p_texture_json.has("extensions")) {
		return OK;
	}
	const Dictionary &extensions = p_texture_json["extensions"];
	if (!extensions.has("EXT_texture_webp")) {
		return OK;
	}
	const Dictionary &texture_webp = extensions["EXT_texture_webp"];
	ERR_FAIL_COND_V(!texture_webp.has("source"), ERR_PARSE_ERROR);
	r_gltf_texture->set_src_image(texture_webp["source"]);
	return OK;
}

Vector<String> GLTFDocumentExtensionTextureWebP::get_saveable_image_formats() {
	Vector<String> ret;
	ret.push_back("Lossless WebP");
	ret.push_back("Lossy WebP");
	return ret;
}

PackedByteArray GLTFDocumentExtensionTextureWebP::serialize_image_to_bytes(Ref<GLTFState> p_state, Ref<Image> p_image, Dictionary p_image_dict, const String &p_image_format, float p_lossy_quality) {
	if (p_image_format == "Lossless WebP") {
		p_image_dict["mimeType"] = "image/webp";
		return p_image->save_webp_to_buffer(false);
	} else if (p_image_format == "Lossy WebP") {
		p_image_dict["mimeType"] = "image/webp";
		return p_image->save_webp_to_buffer(true, p_lossy_quality);
	}
	ERR_FAIL_V(PackedByteArray());
}

Error GLTFDocumentExtensionTextureWebP::save_image_at_path(Ref<GLTFState> p_state, Ref<Image> p_image, const String &p_file_path, const String &p_image_format, float p_lossy_quality) {
	if (p_image_format == "Lossless WebP") {
		p_image->save_webp(p_file_path, false);
		return OK;
	} else if (p_image_format == "Lossy WebP") {
		p_image->save_webp(p_file_path, true, p_lossy_quality);
		return OK;
	}
	return ERR_INVALID_PARAMETER;
}

Error GLTFDocumentExtensionTextureWebP::serialize_texture_json(Ref<GLTFState> p_state, Dictionary p_texture_json, Ref<GLTFTexture> p_gltf_texture, const String &p_image_format) {
	Dictionary ext_texture_webp;
	ext_texture_webp["source"] = p_gltf_texture->get_src_image();
	Dictionary texture_extensions;
	texture_extensions["EXT_texture_webp"] = ext_texture_webp;
	p_texture_json["extensions"] = texture_extensions;
	p_state->add_used_extension("EXT_texture_webp", true);
	return OK;
}