47 lines
1.9 KiB
C++
47 lines
1.9 KiB
C++
// File: basisu_global_selector_palette_helpers.h
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// Copyright (C) 2019 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.h"
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#include "basisu_etc.h"
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#include "transcoder/basisu_global_selector_palette.h"
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namespace basisu
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{
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const uint32_t cPixelBlockWidth = 4;
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const uint32_t cPixelBlockHeight = 4;
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const uint32_t cPixelBlockTotalPixels = cPixelBlockWidth * cPixelBlockHeight;
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struct pixel_block
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{
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color_rgba m_pixels[cPixelBlockHeight][cPixelBlockWidth]; // [y][x]
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const color_rgba &operator() (uint32_t x, uint32_t y) const { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; }
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color_rgba &operator() (uint32_t x, uint32_t y) { assert((x < cPixelBlockWidth) && (y < cPixelBlockHeight)); return m_pixels[y][x]; }
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const color_rgba *get_ptr() const { return &m_pixels[0][0]; }
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color_rgba *get_ptr() { return &m_pixels[0][0]; }
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void clear() { clear_obj(*this); }
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};
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typedef std::vector<pixel_block> pixel_block_vec;
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uint64_t etc1_global_selector_codebook_find_best_entry(const basist::etc1_global_selector_codebook &codebook,
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uint32_t num_src_pixel_blocks, const pixel_block *pSrc_pixel_blocks, const etc_block *pBlock_endpoints,
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uint32_t &palette_index, basist::etc1_global_palette_entry_modifier &palette_modifier,
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bool perceptual, uint32_t max_pal_entries, uint32_t max_modifiers);
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} // namespace basisu
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