huxi
157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
#ifndef _JPEG_DECODER_H_
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#define _JPEG_DECODER_H_
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#include "typedef.h"
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#include "system/task.h"
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#include "generic/rect.h"
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extern u16 QT_TBL[0x80];
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extern u16 STD_HUFFMAN_TBL[258];
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#define QTAB_ADDR ((s16 *)(QT_TBL))
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#define HTAB_DC0_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL)) // 0x30
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#define HTAB_AC0_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30)) // 0xd2
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#define HTAB_DC1_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30 + 0xd2)) // 0x30
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#define HTAB_AC1_ADDR ((u16 *)((u8*)STD_HUFFMAN_TBL + 0x30 + 0xd2 + 0x30)) // 0xd2
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#define JPG_SAMP_FMT_INVALID 0x0
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#define JPG_SAMP_FMT_YUV444 0x1
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#define JPG_SAMP_FMT_YUV422 0x2
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#define JPG_SAMP_FMT_YUV420 0x3
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#define jpg_be16_to_cpu(x) (((x)[0] << 8) | (x)[1])
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#define SINGLE_BUFFER_MODE 0x0
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#define DOUBLE_BUFFER_MODE 0x1
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enum {
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RGB888,
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RGB565,
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};
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struct jpeg_yuv {
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u8 *y;
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u8 *u;
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u8 *v;
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};
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struct jpeg_data {
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u8 *buf;
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u32 len;
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};
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struct jpeg_codec_handle {
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JL_JPG_TypeDef *reg;
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struct jpeg_decoder_fd *decoder_fd;
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OS_SEM sem;
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};
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enum std_markers {
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DQT = 0xDB,
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SOF = 0xC0,
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DHT = 0xC4,
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SOI = 0xD8,
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SOS = 0xDA,
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RST = 0xD0,
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RST7 = 0xD7,
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EOI = 0xD9,
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DRI = 0xDD,
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APP0 = 0xE0,
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};
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struct decoder_info {
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u16 x;
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u16 y;
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u16 x_mcu_num;
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u16 y_mcu_num;
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u16 x_mcu_cnt;
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u16 y_mcu_cnt;
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u8 mcu_h;
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u8 samp_Y;
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u8 htab_Y;
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u8 htab_Cr;
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u8 htab_Cb;
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u8 qtab_Y;
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u8 qtab_Cr;
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u8 qtab_Cb;
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u8 y_cnt;
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};
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typedef u8 *(*jpg_stream_input)(void *__fat_info, u32 *len, u32 offset_4k);
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struct jpeg_decoder_fd {
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void *parent;
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struct decoder_info info;
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struct jpeg_yuv yuv;
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struct jpeg_yuv yuv0;
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struct jpeg_yuv yuv1;
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struct jpeg_data data;
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u32 mcu_num;
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u32 head_len;
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u8 *stream;
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//u8 *stream_end;
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u8 *cur_stream;
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u32 bits_cnt;
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u32 cur_bits_cnt;
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u8 yuv_type;
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u8 last_rst_marker_seen;
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u8 DRI_enable;
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u8 next_rst;
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u8 rst_flag;
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u8 mcupnd_flag;
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u32 next_rst_bits_cnt;
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u32 restart_interval;
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u32 rst_mcu_cnt;
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u16 row_mcu_num;
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u8 rgb_format;
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u16 seg_idx;
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u16 seg_num;
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// u16 lcd_width;
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// u16 lcd_height;
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u16 need_dec_mcu_num;
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u8 data_out_mode;
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u8 buf_flag;
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u8 *fb;
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u8 *fb0;
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u8 *fb1;
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u8 *hbuf;
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u8 fend;
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u8 stop_flag;
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u8 head_buf[512];
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u8 fd_free_enable;
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void *fat_info;
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jpg_stream_input jpg_ginfo_cb;
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u32 fb_size;
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u8 *jpg_obuf;
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struct rect cur_draw;
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struct rect draw_rect;
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struct rect jpeg_rect;
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};
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int jpeg_dec_init(void *fat_info, u8 lcd_format, jpg_stream_input jpg_ginfo_cb);
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int jpeg_dec_start(struct rect *cur_draw, struct rect *draw_rect, struct rect *jpeg_rect, void *dec_out_buf);
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struct jpeg_decoder_fd *jpeg_dec_get_fd();
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void jpeg_dec_stop();
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void jpeg_dec_uninit();
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int jpeg_decoder_open(struct jpeg_decoder_fd *fd);
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int _jpeg_parse_header(struct jpeg_decoder_fd *fd, u8 *buf, int len);
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int jpeg_decode_area(struct jpeg_decoder_fd *decoder_fd);
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int jpeg_decoder_start(void *_fd);
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int jpeg_decoder_init(struct jpeg_decoder_fd *fd);
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int decoder_bits_pnd_handler(struct jpeg_decoder_fd *fd);
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int decoder_mcu_pnd_handler(struct jpeg_decoder_fd *fd);
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int jpeg_decoder_manual_start(void *_fd);
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int jpeg_decoder_close(void *fd);
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int jpeg_codec_init(void);
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extern u8 *jpg_ginfo(void *__fat_info, u32 *len, u32 offset_4k);
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int ui_jpeg_decoder_init();
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int ui_jpeg_decoder_uninit();
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#endif
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