1 // Copyright (C) 2022 Beken Corporation 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 #include <soc/soc.h> 18 #include "driver/jpeg_dec_types.h" 19 20 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 #define addJPEG_data_st (addJPEG_Reg0x9 & 0x100) 27 #define addJPEG_ycount (addJPEG_Reg0x9 & 0xff) 28 #define WORK_AREA_SIZE 4096 29 30 #define JD_SZBUF 1024 /* Size of stream input buffer */ 31 #define JD_FORMAT 0 /* Output pixel format 0:RGB888 (3 BYTE/pix), 1:RGB565 (1 WORD/pix) */ 32 #define JD_USE_SCALE 1 /* Use descaling feature for output */ 33 #define JD_TBLCLIP 1 /* Use table for saturation (might be a bit faster but increases 1K bytes of code size) */ 34 35 /*---------------------------------------------------------------------------*/ 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* Rectangular structure */ 42 typedef struct { 43 uint16_t left, right, top, bottom; 44 } JRECT; 45 46 47 /* Decompressor object structure */ 48 typedef struct JDEC JDEC; 49 struct JDEC { 50 uint16_t dctr; /* Number of bytes available in the input buffer */ 51 uint8_t* dptr; /* Current data read ptr */ 52 uint8_t* inbuf; /* Bit stream input buffer */ 53 uint8_t dmsk; /* Current bit in the current read byte */ 54 uint8_t scale; /* Output scaling ratio */ 55 uint8_t msx, msy; /* MCU size in unit of block (width, height) */ 56 uint8_t qtid[3]; /* Quantization table ID of each component */ 57 int16_t dcv[3]; /* Previous DC element of each component */ 58 uint16_t nrst; /* Restart inverval */ 59 uint16_t width, height; /* Size of the input image (pixel) */ 60 uint8_t* huffbits[2][2]; /* Huffman bit distribution tables [id][dcac] */ 61 uint16_t* huffcode[2][2]; /* Huffman code word tables [id][dcac] */ 62 uint8_t* huffdata[2][2]; /* Huffman decoded data tables [id][dcac] */ 63 int32_t* qttbl[4]; /* Dequantizer tables [id] */ 64 void* workbuf; /* Working buffer for IDCT and RGB output */ 65 uint8_t* mcubuf; /* Working buffer for the MCU */ 66 void* pool; /* Pointer to available memory pool */ 67 uint16_t sz_pool; /* Size of momory pool (bytes available) */ 68 uint16_t (*infunc)(JDEC*, uint8_t*, uint16_t);/* Pointer to jpeg stream input function */ 69 void* device; /* Pointer to I/O device identifiler for the session */ 70 }; 71 72 73 74 //static JDEC jdec; /* Decompression object */ 75 76 int jpg_dec_config(uint16_t xpixel, uint16_t ypixel, uint32_t length, unsigned char *input_buf, unsigned char * output_buf); 77 void jpeg_dec_block_int_en(bool auto_int_en); 78 void jpeg_dec_auto_frame_end_int_en(bool auto_int_en); 79 void jpeg_dec_auto_line_num_int_en(bool line_int_en, uint16_t line_num); 80 81 JRESULT JpegdecInit(void); 82 JRESULT jd_decomp(void); 83 84 int jpg_decoder_init(void); 85 86 int jpg_decoder_deinit(void); 87 88 #ifdef __cplusplus 89 } 90 #endif 91 92 93 94 95 96 97 98 99 100