mirror of
https://github.com/BinomialLLC/basis_universal.git
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84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
// basisu_basis_file.h
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// Copyright (C) 2024 Binomial LLC. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "../transcoder/basisu_file_headers.h"
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#include "basisu_backend.h"
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namespace basisu
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{
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class basisu_file
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{
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BASISU_NO_EQUALS_OR_COPY_CONSTRUCT(basisu_file);
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public:
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basisu_file()
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{
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}
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void clear()
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{
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m_comp_data.clear();
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clear_obj(m_header);
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m_images_descs.clear();
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m_header_file_ofs = 0;
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m_slice_descs_file_ofs = 0;
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m_kv_data_file_ofs = 0;
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m_kv_data_file_size = 0;
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m_endpoint_cb_file_ofs = 0;
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m_selector_cb_file_ofs = 0;
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m_tables_file_ofs = 0;
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m_first_image_file_ofs = 0;
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m_total_file_size = 0;
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}
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bool init(const basisu_backend_output& encoder_output,
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basist::basis_texture_type tex_type,
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uint32_t userdata0, uint32_t userdata1,
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bool y_flipped, uint32_t us_per_frame,
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const basist::key_value_vec &key_values);
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const uint8_vec &get_compressed_data() const { return m_comp_data; }
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private:
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basist::basis_file_header m_header;
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basisu::vector<basist::basis_slice_desc> m_images_descs;
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uint8_vec m_comp_data;
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uint32_t m_header_file_ofs; // Header file ofs
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uint32_t m_slice_descs_file_ofs; // Slice descs file ofs
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uint32_t m_kv_data_file_ofs; // Key-value file ofs
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uint32_t m_kv_data_file_size; // Key-value file size
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uint32_t m_endpoint_cb_file_ofs; // Endpoint CB file ofs
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uint32_t m_selector_cb_file_ofs; // Selector CB file ofs
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uint32_t m_tables_file_ofs; // Huffman tables file ofs
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uint32_t m_first_image_file_ofs; // First image data file ofs
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uint32_t m_total_file_size; // Total file size file ofs
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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);
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bool create_image_descs(const basisu_backend_output& encoder_output);
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void create_comp_data(const basisu_backend_output& encoder_output, const uint8_vec& kv_data);
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void fixup_crcs();
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bool check_key(const uint8_vec& k);
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bool create_key_value_data(uint8_vec& kv_data, const basist::key_value_vec& key_values);
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};
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} // namespace basisu
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