godot/thirdparty/basis_universal/basisu_basis_file.h

71 lines
2.1 KiB
C++

// basisu_basis_file.h
// Copyright (C) 2019 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;
std::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