imageviewer: Initial support for JPEG progressive images. Add lib sources

Added unmodified files from RAINBOW library by Attila Tarpai Full sources: https://github.com/Halicery/vc_rainbow Change-Id: I356486b6a332aa3f610ddcae57f8a2044653b051
2025-11-18 01:22:38 -05:00 · 2024-10-09 17:31:17 +03:00 · 2024-10-09 17:31:17 +03:00 · 64ad7354b6
commit 64ad7354b6
parent 772eff8ca6
6 changed files with 1339 additions and 0 deletions
--- a/apps/plugins/imageviewer/jpegp/jpeg81.h
+++ b/apps/plugins/imageviewer/jpegp/jpeg81.h
@ -0,0 +1,147 @@
+/*   Copyright (c) 2017 A. Tarpai 
+*   
+*   Permission is hereby granted, free of charge, to any person obtaining a copy
+*   of this software and associated documentation files (the "Software"), to deal
+*   in the Software without restriction, including without limitation the rights
+*   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+*   copies of the Software, and to permit persons to whom the Software is
+*   furnished to do so, subject to the following conditions:
+*   
+*   The above copyright notice and this permission notice shall be included in all
+*   copies or substantial portions of the Software.
+*   
+*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+*   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+*   SOFTWARE.
+*/
+
+enum JPEGENUM {
+	JPEGENUM_OK=1, 
+	JPEGENUMERR_MISSING_SOI = -999,	// file doesnt start with SOI 
+	JPEGENUMERR_UNKNOWN_SOF,		// differential frame?
+	JPEGENUMERR_COMP4,				// more than 4 components in file
+	JPEGENUMERR_MALLOC,				// malloc failed
+	JPEGENUMERR_NODHT,				// no DHT found
+	JPEGENUMERR_NODQT,				// no DQT found
+	JPEGENUMERR_QTREDEF,			// not implemented (*)
+	JPEGENUMERR_MARKERC8,			// JPG-1 extension?
+	JPEGENUMERR_MARKERDNL,			// DNL marker found (not supported)
+	JPEGENUMERR_ZEROY,				// Y in SOFn is zero (DNL?)
+	JPEGENUMERR_COMPNOTFOUND,		// Scan component selector (Csj) not found among Component identifiers (Ci)
+};
+
+typedef short TCOEF;	// 16-bit coefficients
+typedef TCOEF DU[64];	// The DATA UNIT
+typedef unsigned short TSAMP;	// Lossless 'coefficients' are unsigned 
+
+struct CABACSTATE  {	// borrowed from the AVC decoder
+	int StateIdx;
+	int valMPS;
+};
+
+struct COMP {		// Image Component Info and variables 
+
+	// from SOF
+	int Ci;			// Component identifier
+	int Hi;			// Horizontal sampling factor
+	int Vi;			// Vertical sampling factor
+	int Qi;			// Quantization table destination selector
+
+	// Computed parameters
+	int du_w, du_h;		// width/height in data units for single scans and for idct/conversion
+	int du_size;        // = du_w * du_h
+	
+	int du_width;	  // total width in DU (storage and interleaved scans)
+	int du_total;     // -> for malloc 
+
+	// Component coefficient buffer
+	union {
+		DU *du;			// DCT: pointer to DU
+		TSAMP *samp;	// LL
+	};
+
+	// In scans
+	union {					// either/or
+		int DC;				// jpeg's differential encoded DC (per scan-component)
+		int EOBRUN;			// Only in AC-single scan (Huffman)
+	};
+
+	// Huffman
+		int *ACB;			// AC-'base-values'
+		unsigned char *ACS;	// AC-symbols
+		int *DCB;				
+		unsigned char *DCS;	
+
+	// Arithmetic
+		struct CABACSTATE *DCST;	// DC-statistical area
+		struct CABACSTATE *ACST;	// with -1 offset (we use 'k' itself for addressing)
+		struct CABACSTATE *LLST;
+		int U, L, Kx;
+		int DIFF;	// diff value for the previous DC
+
+	// Lossless 
+		short *diffAbove;	// stored DIFF for LOSSLESS (an MCU line - 1?)
+		int diffLeft[4+1];	// LineNo added (to fast test for zero)
+};
+
+
+struct JPEGD {		// The JPEG DECODER OBJECT
+
+	struct COMP Components[4];
+
+	// SOFn: Frame Header
+	int Nf;
+	int P;
+	int Y, X;	// "number of samples per line in the component with the maximum number of horizontal samples" and vertical
+	int SOF;		// save marker to make decisions
+	int QT[4][64];	// Q-tables from stream
+
+	void *jpeg_mem;				// <-- free me
+
+	int Hmax, Vmax;	// for conversion
+	int mcu_width;
+	int mcu_height;
+	int mcu_total;	// covers the whole image
+	
+	int HTB[2][4][16];					// Huffman 'base' values 
+	unsigned char HTS[2][4][256];		// Huffman 'symbol' values
+
+
+	int Ri;		// Restart interval
+	
+	void (*Reset_decoder)(struct JPEGD *j);	// huffman/arithmetic/lossless
+
+	// Actual Scan
+	int Ns;
+	struct COMP *ScanComponents[4];		// --> pointer to COMP in order of scan component definition 
+	int Ss, Se, Al, Ah;
+	int Al2; // =1<<Al
+
+	int ScanByte;
+	int ScanBit;
+	int (*Byte_in)(struct JPEGD *j);		// huffman/arithmetic
+	void (*DecodeDataUnit)(struct JPEGD *j, struct COMP *sc, TCOEF *coef); // DCT huffman/arithmetic
+
+
+	// LOSSLESS
+		int LineNo;	// Ri clears this
+		void (*decode_lossless)(struct JPEGD *j, struct COMP *C, int x, int y, TSAMP *coef);	// huffman/arithmetic
+
+	// Arith
+		// DAC, ArithmeticConditioning
+		int U[4], L[4], Kx[4];
+
+		unsigned short C;	//CodeRegister;					// C  <-- from bit stream
+		unsigned short A;	//ProbabilityIntervalRegister;	// A  <-- 
+
+		// AVC-style (JPEG 'statictical area')
+		struct CABACSTATE DCST[4][49];
+		struct CABACSTATE ACST[4][245];
+
+};
+
+extern int JPEGDecode(struct JPEGD *j);