Increased SPI frequency from 5Mhz to 10MHz
Fork of RA8875 by
GraphicsDisplayJPEG.h@115:c9862fd0c689, 2016-05-16 (annotated)
- Committer:
- WiredHome
- Date:
- Mon May 16 02:05:37 2016 +0000
- Revision:
- 115:c9862fd0c689
- Child:
- 125:7a0b70f56550
Jpeg rendering - not yet working, just an intermediate check-point.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
WiredHome | 115:c9862fd0c689 | 1 | /// Wrapping ChaN's TJpgDec into this graphics engine |
WiredHome | 115:c9862fd0c689 | 2 | /// |
WiredHome | 115:c9862fd0c689 | 3 | |
WiredHome | 115:c9862fd0c689 | 4 | #ifndef GraphicsDisplayJPEG_H |
WiredHome | 115:c9862fd0c689 | 5 | #define GraphicsDisplayJPEG_H |
WiredHome | 115:c9862fd0c689 | 6 | |
WiredHome | 115:c9862fd0c689 | 7 | /*----------------------------------------------------------------------------/ |
WiredHome | 115:c9862fd0c689 | 8 | / TJpgDec - Tiny JPEG Decompressor include file (C)ChaN, 2012 |
WiredHome | 115:c9862fd0c689 | 9 | /----------------------------------------------------------------------------*/ |
WiredHome | 115:c9862fd0c689 | 10 | #ifndef _TJPGDEC |
WiredHome | 115:c9862fd0c689 | 11 | #define _TJPGDEC |
WiredHome | 115:c9862fd0c689 | 12 | |
WiredHome | 115:c9862fd0c689 | 13 | /*---------------------------------------------------------------------------*/ |
WiredHome | 115:c9862fd0c689 | 14 | /* System Configurations */ |
WiredHome | 115:c9862fd0c689 | 15 | |
WiredHome | 115:c9862fd0c689 | 16 | #define JD_SZBUF 512 /* Size of stream input buffer */ |
WiredHome | 115:c9862fd0c689 | 17 | #define JD_FORMAT 1 /* Output pixel format 0:RGB888 (3 BYTE/pix), 1:RGB565 (1 WORD/pix) */ |
WiredHome | 115:c9862fd0c689 | 18 | #define JD_USE_SCALE 1 /* Use descaling feature for output */ |
WiredHome | 115:c9862fd0c689 | 19 | #define JD_TBLCLIP 1 /* Use table for saturation (might be a bit faster but increases 1K bytes of code size) */ |
WiredHome | 115:c9862fd0c689 | 20 | |
WiredHome | 115:c9862fd0c689 | 21 | /*---------------------------------------------------------------------------*/ |
WiredHome | 115:c9862fd0c689 | 22 | |
WiredHome | 115:c9862fd0c689 | 23 | #include "DisplayDefs.h" |
WiredHome | 115:c9862fd0c689 | 24 | |
WiredHome | 115:c9862fd0c689 | 25 | /* Error code */ |
WiredHome | 115:c9862fd0c689 | 26 | typedef enum { |
WiredHome | 115:c9862fd0c689 | 27 | JDR_OK = noerror, /* 0: Succeeded */ |
WiredHome | 115:c9862fd0c689 | 28 | JDR_INTR = external_abort, /* 1: Interrupted by output function */ |
WiredHome | 115:c9862fd0c689 | 29 | JDR_INP = bad_parameter, /* 2: Device error or wrong termination of input stream */ |
WiredHome | 115:c9862fd0c689 | 30 | JDR_MEM1 = not_enough_ram, /* 3: Insufficient memory pool for the image */ |
WiredHome | 115:c9862fd0c689 | 31 | JDR_MEM2 = not_enough_ram, /* 4: Insufficient stream input buffer */ |
WiredHome | 115:c9862fd0c689 | 32 | JDR_PAR = bad_parameter, /* 5: Parameter error */ |
WiredHome | 115:c9862fd0c689 | 33 | JDR_FMT1 = not_supported_format, /* 6: Data format error (may be damaged data) */ |
WiredHome | 115:c9862fd0c689 | 34 | JDR_FMT2 = not_supported_format, /* 7: Right format but not supported */ |
WiredHome | 115:c9862fd0c689 | 35 | JDR_FMT3 = not_supported_format /* 8: Not supported JPEG standard */ |
WiredHome | 115:c9862fd0c689 | 36 | } JRESULT; |
WiredHome | 115:c9862fd0c689 | 37 | |
WiredHome | 115:c9862fd0c689 | 38 | |
WiredHome | 115:c9862fd0c689 | 39 | |
WiredHome | 115:c9862fd0c689 | 40 | /* Rectangular structure */ |
WiredHome | 115:c9862fd0c689 | 41 | typedef struct { |
WiredHome | 115:c9862fd0c689 | 42 | loc_t left, right, top, bottom; |
WiredHome | 115:c9862fd0c689 | 43 | } JRECT; |
WiredHome | 115:c9862fd0c689 | 44 | |
WiredHome | 115:c9862fd0c689 | 45 | |
WiredHome | 115:c9862fd0c689 | 46 | |
WiredHome | 115:c9862fd0c689 | 47 | /* Decompressor object structure */ |
WiredHome | 115:c9862fd0c689 | 48 | typedef struct JDEC JDEC; |
WiredHome | 115:c9862fd0c689 | 49 | struct JDEC { |
WiredHome | 115:c9862fd0c689 | 50 | uint16_t dctr; /* Number of bytes available in the input buffer */ |
WiredHome | 115:c9862fd0c689 | 51 | uint8_t * dptr; /* Current data read ptr */ |
WiredHome | 115:c9862fd0c689 | 52 | uint8_t * inbuf; /* Bit stream input buffer */ |
WiredHome | 115:c9862fd0c689 | 53 | uint8_t dmsk; /* Current bit in the current read byte */ |
WiredHome | 115:c9862fd0c689 | 54 | uint8_t scale; /* Output scaling ratio */ |
WiredHome | 115:c9862fd0c689 | 55 | uint8_t msx, msy; /* MCU size in unit of block (width, height) */ |
WiredHome | 115:c9862fd0c689 | 56 | uint8_t qtid[3]; /* Quantization table ID of each component */ |
WiredHome | 115:c9862fd0c689 | 57 | int16_t dcv[3]; /* Previous DC element of each component */ |
WiredHome | 115:c9862fd0c689 | 58 | uint16_t nrst; /* Restart inverval */ |
WiredHome | 115:c9862fd0c689 | 59 | uint16_t width, height; /* Size of the input image (pixel) */ |
WiredHome | 115:c9862fd0c689 | 60 | uint8_t * huffbits[2][2]; /* Huffman bit distribution tables [id][dcac] */ |
WiredHome | 115:c9862fd0c689 | 61 | uint16_t * huffcode[2][2]; /* Huffman code word tables [id][dcac] */ |
WiredHome | 115:c9862fd0c689 | 62 | uint8_t * huffdata[2][2]; /* Huffman decoded data tables [id][dcac] */ |
WiredHome | 115:c9862fd0c689 | 63 | int32_t * qttbl[4]; /* Dequaitizer tables [id] */ |
WiredHome | 115:c9862fd0c689 | 64 | void * workbuf; /* Working buffer for IDCT and RGB output */ |
WiredHome | 115:c9862fd0c689 | 65 | uint8_t * mcubuf; /* Working buffer for the MCU */ |
WiredHome | 115:c9862fd0c689 | 66 | void * pool; /* Pointer to available memory pool */ |
WiredHome | 115:c9862fd0c689 | 67 | uint16_t sz_pool; /* Size of momory pool (bytes available) */ |
WiredHome | 115:c9862fd0c689 | 68 | uint16_t (*infunc)(JDEC * jd, uint8_t * buffer, uint16_t bufsize);/* Pointer to jpeg stream input function */ |
WiredHome | 115:c9862fd0c689 | 69 | void * device; /* Pointer to I/O device identifiler for the session */ |
WiredHome | 115:c9862fd0c689 | 70 | }; |
WiredHome | 115:c9862fd0c689 | 71 | |
WiredHome | 115:c9862fd0c689 | 72 | |
WiredHome | 115:c9862fd0c689 | 73 | #endif /* _TJPGDEC */ |
WiredHome | 115:c9862fd0c689 | 74 | |
WiredHome | 115:c9862fd0c689 | 75 | #endif // GraphicsDisplayJPEG_H |