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Support: jpeg decoder on esp32c2 (#525)
* Extend s/w jpeg decoder functions for chips missing rom tjpgd Also, disabled camera_init and capture from example for chips not supporting camera Signed-off-by: Vikram <vikram.dattu@espressif.com> * Extend CI build support for C3 and C2 Signed-off-by: Vikram <vikram.dattu@espressif.com> --------- Signed-off-by: Vikram <vikram.dattu@espressif.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /*----------------------------------------------------------------------------/ | ||
| / TJpgDec - Tiny JPEG Decompressor include file (C)ChaN, 2012 | ||
| /----------------------------------------------------------------------------*/ | ||
| #ifndef _TJPGDEC | ||
| #define _TJPGDEC | ||
| /*---------------------------------------------------------------------------*/ | ||
| /* System Configurations */ | ||
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| #define JD_SZBUF 512 /* Size of stream input buffer */ | ||
| #define JD_FORMAT 0 /* Output pixel format 0:RGB888 (3 BYTE/pix), 1:RGB565 (1 WORD/pix) */ | ||
| #define JD_USE_SCALE 1 /* Use descaling feature for output */ | ||
| #define JD_TBLCLIP 1 /* Use table for saturation (might be a bit faster but increases 1K bytes of code size) */ | ||
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| /*---------------------------------------------------------------------------*/ | ||
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
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| /* These types must be 16-bit, 32-bit or larger integer */ | ||
| typedef int INT; | ||
| typedef unsigned int UINT; | ||
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| /* These types must be 8-bit integer */ | ||
| typedef char CHAR; | ||
| typedef unsigned char UCHAR; | ||
| typedef unsigned char BYTE; | ||
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| /* These types must be 16-bit integer */ | ||
| typedef short SHORT; | ||
| typedef unsigned short USHORT; | ||
| typedef unsigned short WORD; | ||
| typedef unsigned short WCHAR; | ||
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| /* These types must be 32-bit integer */ | ||
| typedef long LONG; | ||
| typedef unsigned long ULONG; | ||
| typedef unsigned long DWORD; | ||
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| /* Error code */ | ||
| typedef enum { | ||
| JDR_OK = 0, /* 0: Succeeded */ | ||
| JDR_INTR, /* 1: Interrupted by output function */ | ||
| JDR_INP, /* 2: Device error or wrong termination of input stream */ | ||
| JDR_MEM1, /* 3: Insufficient memory pool for the image */ | ||
| JDR_MEM2, /* 4: Insufficient stream input buffer */ | ||
| JDR_PAR, /* 5: Parameter error */ | ||
| JDR_FMT1, /* 6: Data format error (may be damaged data) */ | ||
| JDR_FMT2, /* 7: Right format but not supported */ | ||
| JDR_FMT3 /* 8: Not supported JPEG standard */ | ||
| } JRESULT; | ||
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| /* Rectangular structure */ | ||
| typedef struct { | ||
| WORD left, right, top, bottom; | ||
| } JRECT; | ||
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| /* Decompressor object structure */ | ||
| typedef struct JDEC JDEC; | ||
| struct JDEC { | ||
| UINT dctr; /* Number of bytes available in the input buffer */ | ||
| BYTE* dptr; /* Current data read ptr */ | ||
| BYTE* inbuf; /* Bit stream input buffer */ | ||
| BYTE dmsk; /* Current bit in the current read byte */ | ||
| BYTE scale; /* Output scaling ratio */ | ||
| BYTE msx, msy; /* MCU size in unit of block (width, height) */ | ||
| BYTE qtid[3]; /* Quantization table ID of each component */ | ||
| SHORT dcv[3]; /* Previous DC element of each component */ | ||
| WORD nrst; /* Restart inverval */ | ||
| UINT width, height; /* Size of the input image (pixel) */ | ||
| BYTE* huffbits[2][2]; /* Huffman bit distribution tables [id][dcac] */ | ||
| WORD* huffcode[2][2]; /* Huffman code word tables [id][dcac] */ | ||
| BYTE* huffdata[2][2]; /* Huffman decoded data tables [id][dcac] */ | ||
| LONG* qttbl[4]; /* Dequaitizer tables [id] */ | ||
| void* workbuf; /* Working buffer for IDCT and RGB output */ | ||
| BYTE* mcubuf; /* Working buffer for the MCU */ | ||
| void* pool; /* Pointer to available memory pool */ | ||
| UINT sz_pool; /* Size of momory pool (bytes available) */ | ||
| UINT (*infunc)(JDEC*, BYTE*, UINT);/* Pointer to jpeg stream input function */ | ||
| void* device; /* Pointer to I/O device identifiler for the session */ | ||
| }; | ||
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| /* TJpgDec API functions */ | ||
| JRESULT jd_prepare (JDEC*, UINT(*)(JDEC*,BYTE*,UINT), void*, UINT, void*); | ||
| JRESULT jd_decomp (JDEC*, UINT(*)(JDEC*,void*,JRECT*), BYTE); | ||
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| #ifdef __cplusplus | ||
| } | ||
| #endif | ||
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| #endif /* _TJPGDEC */ |
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