initial commit, 4.5 stable

thirdparty/basis_universal/encoder/basisu_basis_file.h

@@ -0,0 +1,70 @@
+// basisu_basis_file.h
+// Copyright (C) 2024 Binomial LLC. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#pragma once
+#include "../transcoder/basisu_file_headers.h"
+#include "basisu_backend.h"
+
+namespace basisu
+{
+	class basisu_file
+	{
+		BASISU_NO_EQUALS_OR_COPY_CONSTRUCT(basisu_file);
+
+	public:
+		basisu_file()
+		{
+		}
+
+		void clear()
+		{
+			m_comp_data.clear();
+
+			clear_obj(m_header);
+			m_images_descs.clear();
+
+			m_header_file_ofs = 0;
+			m_slice_descs_file_ofs = 0;
+			m_endpoint_cb_file_ofs = 0;
+			m_selector_cb_file_ofs = 0;
+			m_tables_file_ofs = 0;
+			m_first_image_file_ofs = 0;
+			m_total_file_size = 0;
+		}
+
+		bool init(const basisu_backend_output& encoder_output, basist::basis_texture_type tex_type, uint32_t userdata0, uint32_t userdata1, bool y_flipped, uint32_t us_per_frame);
+
+		const uint8_vec &get_compressed_data() const { return m_comp_data; }
+
+	private:
+		basist::basis_file_header m_header;
+		basisu::vector<basist::basis_slice_desc> m_images_descs;
+
+		uint8_vec m_comp_data;
+
+		uint32_t m_header_file_ofs;
+		uint32_t m_slice_descs_file_ofs;
+		uint32_t m_endpoint_cb_file_ofs;
+		uint32_t m_selector_cb_file_ofs;
+		uint32_t m_tables_file_ofs;
+		uint32_t m_first_image_file_ofs;
+		uint32_t m_total_file_size;
+
+		void create_header(const basisu_backend_output& encoder_output,  basist::basis_texture_type tex_type, uint32_t userdata0, uint32_t userdata1, bool y_flipped, uint32_t us_per_frame);
+		bool create_image_descs(const basisu_backend_output& encoder_output);
+		void create_comp_data(const basisu_backend_output& encoder_output);
+		void fixup_crcs();
+	};
+
+} // namespace basisu