// Copyright 2020-2021 Beken // // 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. #include "jpeg_ll.h" #define JPEG_QUANT_TABLE_LEN 32 static const uint32_t jpeg_quant_table[JPEG_QUANT_TABLE_LEN] = { 0x07060608, 0x07080506, 0x09090707, 0x140c0a08, 0x0b0b0c0d, 0x1312190c, 0x1a1d140f, 0x1a1d1e1f, 0x24201c1c, 0x2220272e, 0x1c1c232c, 0x2c293728, 0x34343130, 0x39271f34, 0x3c32383d, 0x3234332e, 0x0c090909, 0x0d180c0b, 0x2132180d, 0x3232211c, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232, 0x32323232 }; void jpeg_ll_init_quant_table(jpeg_hw_t *hw) { uint32_t reg_addr; for (uint32_t i = 0; i < JPEG_QUANT_TABLE_LEN; i++) { reg_addr = JPEG_R_QUANT_TABLE + i * 4; REG_WRITE(reg_addr, (uint32_t)jpeg_quant_table[i]); } }