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https://github.com/opencv/opencv.git
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Alexander Smorkalov
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* riscv_init.c - RISC-V Vector optimized filter functions
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*
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* Copyright (c) 2023 Google LLC
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* Written by Dragoș Tiselice <dtiselice@google.com>, May 2023.
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* Filip Wasil <f.wasil@samsung.com>, March 2025.
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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*/
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#include "../pngpriv.h"
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#ifdef PNG_READ_SUPPORTED
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#if PNG_RISCV_RVV_IMPLEMENTATION == 1
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#include <riscv_vector.h>
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#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
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# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
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#endif
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void
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png_init_filter_functions_rvv(png_structp pp, unsigned int bpp)
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{
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png_debug(1, "in png_init_filter_functions_rvv");
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pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_rvv;
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if (bpp == 3)
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{
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pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_rvv;
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pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth3_rvv;
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pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_rvv;
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}
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else if (bpp == 4)
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{
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pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_rvv;
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pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = png_read_filter_row_paeth4_rvv;
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pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_rvv;
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}
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}
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#endif /* PNG_RISCV_RVV_IMPLEMENTATION == 1 */
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#endif /* PNG_READ_SUPPORTED */
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