From 10e39a23311d392e916b02ed9f551d8eee214047 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Sat, 24 Jan 2009 10:19:29 +0000
Subject: jpeg2000 commit missed the 2 most important files.

---
 source/blender/imbuf/intern/jp2.c | 736 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 736 insertions(+)
 create mode 100644 source/blender/imbuf/intern/jp2.c

(limited to 'source/blender/imbuf/intern/jp2.c')

diff --git a/source/blender/imbuf/intern/jp2.c b/source/blender/imbuf/intern/jp2.c
new file mode 100644
index 00000000000..6217cd6bea2
--- /dev/null
+++ b/source/blender/imbuf/intern/jp2.c
@@ -0,0 +1,736 @@
+/**
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * Contributor(s): Campbell Barton
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifdef WITH_OPENJPEG
+
+#include "BLI_blenlib.h"
+
+#include "imbuf.h"
+#include "imbuf_patch.h"
+
+#include "IMB_imbuf_types.h"
+#include "IMB_imbuf.h"
+#include "IMB_allocimbuf.h"
+#include "IMB_jp2.h"
+
+#include "openjpeg.h"
+
+#define JP2_FILEHEADER_SIZE 14
+
+static char JP2_HEAD[]= {0x0, 0x0, 0x0, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A};
+
+/* We only need this because of how the presets are set */
+typedef struct img_folder{
+	/** The directory path of the folder containing input images*/
+	char *imgdirpath;
+	/** Output format*/
+	char *out_format;
+	/** Enable option*/
+	char set_imgdir;
+	/** Enable Cod Format for output*/
+	char set_out_format;
+	/** User specified rate stored in case of cinema option*/
+	float *rates;
+}img_fol_t;
+
+static int checkj2p(unsigned char *mem) /* J2K_CFMT */
+{
+	return memcmp(JP2_HEAD, mem, 12) ? 0 : 1;
+}
+
+int imb_is_a_jp2(void *buf)
+{	
+	return checkj2p(buf);
+}
+
+
+/**
+sample error callback expecting a FILE* client object
+*/
+void error_callback(const char *msg, void *client_data) {
+	FILE *stream = (FILE*)client_data;
+	fprintf(stream, "[ERROR] %s", msg);
+}
+/**
+sample warning callback expecting a FILE* client object
+*/
+void warning_callback(const char *msg, void *client_data) {
+	FILE *stream = (FILE*)client_data;
+	fprintf(stream, "[WARNING] %s", msg);
+}
+/**
+sample debug callback expecting no client object
+*/
+void info_callback(const char *msg, void *client_data) {
+	(void)client_data;
+	fprintf(stdout, "[INFO] %s", msg);
+}
+
+
+
+struct ImBuf *imb_jp2_decode(unsigned char *mem, int size, int flags)
+{
+	struct ImBuf *ibuf = 0;
+	int use_float = 0; /* for precissions higher then 8 use float */
+	unsigned char *rect= NULL;
+	float *rect_float= NULL;
+	
+	long signed_offsets[4] = {0,0,0,0};
+	int float_divs[4];
+	
+	int index;
+	
+	int w, h, depth;
+	
+	opj_dparameters_t parameters;	/* decompression parameters */
+	
+	opj_event_mgr_t event_mgr;		/* event manager */
+	opj_image_t *image = NULL;
+	
+	int i;
+	
+	opj_dinfo_t* dinfo = NULL;	/* handle to a decompressor */
+	opj_cio_t *cio = NULL;
+
+	if (checkj2p(mem) == 0) return(0);
+
+	/* configure the event callbacks (not required) */
+	memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
+	event_mgr.error_handler = error_callback;
+	event_mgr.warning_handler = warning_callback;
+	event_mgr.info_handler = info_callback;
+
+
+	/* set decoding parameters to default values */
+	opj_set_default_decoder_parameters(&parameters);
+
+
+	/* JPEG 2000 compressed image data */
+
+	/* get a decoder handle */
+	dinfo = opj_create_decompress(CODEC_JP2);
+
+	/* catch events using our callbacks and give a local context */
+	opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+
+	/* setup the decoder decoding parameters using the current image and user parameters */
+	opj_setup_decoder(dinfo, &parameters);
+
+	/* open a byte stream */
+	cio = opj_cio_open((opj_common_ptr)dinfo, mem, size);
+
+	/* decode the stream and fill the image structure */
+	image = opj_decode(dinfo, cio);
+	
+	if(!image) {
+		fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+		opj_destroy_decompress(dinfo);
+		opj_cio_close(cio);
+		return NULL;
+	}
+
+	/* close the byte stream */
+	opj_cio_close(cio);
+
+
+	if((image->numcomps * image->x1 * image->y1) == 0)
+	{
+		fprintf(stderr,"\nError: invalid raw image parameters\n");
+		return NULL;
+	}
+	
+	w = image->comps[0].w;	    
+	h = image->comps[0].h;
+	
+	switch (image->numcomps) {
+	case 1: /* Greyscale */
+	case 3: /* Color */
+		depth= 24; 
+		break;
+	default: /* 2 or 4 - Greyscale or Color + alpha */
+		depth= 32; /* greyscale + alpha */
+		break;
+	}
+	
+	
+	i = image->numcomps;
+	if (i>4) i= 4;
+	
+	while (i) {
+		i--;
+		
+		if (image->comps[i].prec > 8)
+			use_float = 1;
+		
+		if (image->comps[i].sgnd)
+			signed_offsets[i]=  1 << (image->comps[i].prec - 1); 
+		
+		/* only needed for float images but dosnt hurt to calc this */
+		float_divs[i]= (1<<image->comps[i].prec)-1;
+	}
+	
+	if (use_float) {
+		ibuf= IMB_allocImBuf(w, h, depth, IB_rectfloat, 0);
+		rect_float = ibuf->rect_float;
+	} else {
+		ibuf= IMB_allocImBuf(w, h, depth, IB_rect, 0);
+		rect = (unsigned char *) ibuf->rect;
+	}
+	
+	if (ibuf==NULL) {
+		if(dinfo)
+			opj_destroy_decompress(dinfo);
+		return NULL;
+	}
+	
+	ibuf->ftype = JP2;
+	
+	if (use_float) {
+		rect_float = ibuf->rect_float;
+		
+		if (image->numcomps < 3) {
+			/* greyscale 12bits+ */
+			for (i = 0; i < w * h; i++, rect_float+=4) {
+				index = w * h - ((i) / (w) + 1) * w + (i) % (w);
+				
+				rect_float[0]= rect_float[1]= rect_float[2]= (float)(image->comps[0].data[index] + signed_offsets[0]) / float_divs[0];
+				
+				if (image->numcomps == 2)
+					rect_float[3]= (image->comps[1].data[index] + signed_offsets[1]) / float_divs[1];
+				else
+					rect_float[3]= 1.0f;
+			}
+		} else {
+			/* rgb or rgba 12bits+ */
+			for (i = 0; i < w * h; i++, rect_float+=4) {
+				index = w * h - ((i) / (w) + 1) * w + (i) % (w);
+				
+				rect_float[0]= (float)(image->comps[0].data[index] + signed_offsets[0]) / float_divs[0];
+				rect_float[1]= (float)(image->comps[1].data[index] + signed_offsets[1]) / float_divs[1];
+				rect_float[2]= (float)(image->comps[2].data[index] + signed_offsets[2]) / float_divs[2];
+				
+				if (image->numcomps >= 4)
+					rect_float[3]= (float)(image->comps[2].data[index] + signed_offsets[3]) / float_divs[3];
+				else
+					rect_float[3]= 1.0f;
+			}
+		}
+		
+	} else {
+		
+		if (image->numcomps < 3) {
+			/* greyscale */
+			for (i = 0; i < w * h; i++, rect+=4) {
+				index = w * h - ((i) / (w) + 1) * w + (i) % (w);
+				
+				rect_float[0]= rect_float[1]= rect_float[2]= (image->comps[0].data[index] + signed_offsets[0]);
+				
+				if (image->numcomps == 2)
+					rect[3]= image->comps[1].data[index] + signed_offsets[1];
+				else
+					rect[3]= 255;
+			}
+		} else {
+			/* 8bit rgb or rgba */
+			for (i = 0; i < w * h; i++, rect+=4) {
+				int index = w * h - ((i) / (w) + 1) * w + (i) % (w);
+				
+				rect[0]= image->comps[0].data[index] + signed_offsets[0];
+				rect[1]= image->comps[1].data[index] + signed_offsets[1];
+				rect[2]= image->comps[2].data[index] + signed_offsets[2];
+				
+				if (image->numcomps >= 4)
+					rect[3]= image->comps[2].data[index] + signed_offsets[3];
+				else
+					rect[3]= 255;
+			}
+		}
+	}
+	
+	/* free remaining structures */
+	if(dinfo) {
+		opj_destroy_decompress(dinfo);
+	}
+	
+	/* free image data structure */
+	opj_image_destroy(image);
+	
+	if (flags & IB_rect) {
+		IMB_rect_from_float(ibuf);
+	}
+	
+	return(ibuf);
+}
+
+//static opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
+/* prec can be 8, 12, 16 */
+
+#define UPSAMPLE_8_TO_12(_val) ((_val<<4) | (_val & ((1<<4)-1)))
+#define UPSAMPLE_8_TO_16(_val) ((_val<<8)+_val)
+
+#define DOWNSAMPLE_FLOAT_TO_8BIT(_val)	(_val)<=0.0f?0: ((_val)>=1.0f?255: (int)(255.0f*(_val)))
+#define DOWNSAMPLE_FLOAT_TO_12BIT(_val)	(_val)<=0.0f?0: ((_val)>=1.0f?4095: (int)(4095.0f*(_val)))
+#define DOWNSAMPLE_FLOAT_TO_16BIT(_val)	(_val)<=0.0f?0: ((_val)>=1.0f?65535: (int)(65535.0f*(_val)))
+
+
+/*
+2048x1080 (2K) at 24 fps or 48 fps, or 4096x2160 (4K) at 24 fps; 3×12 bits per pixel, XYZ color space
+
+    * In 2K, for Scope (2.39:1) presentation 2048x858 pixels of the imager is used
+    * In 2K, for Flat (1.85:1) presentation 1998x1080 pixels of the imager is used
+*/
+
+/* ****************************** COPIED FROM image_to_j2k.c */
+
+/* ----------------------------------------------------------------------- */
+#define CINEMA_24_CS 1302083	/*Codestream length for 24fps*/
+#define CINEMA_48_CS 651041		/*Codestream length for 48fps*/
+#define COMP_24_CS 1041666		/*Maximum size per color component for 2K & 4K @ 24fps*/
+#define COMP_48_CS 520833		/*Maximum size per color component for 2K @ 48fps*/
+
+
+static int initialise_4K_poc(opj_poc_t *POC, int numres){
+	POC[0].tile  = 1; 
+	POC[0].resno0  = 0; 
+	POC[0].compno0 = 0;
+	POC[0].layno1  = 1;
+	POC[0].resno1  = numres-1;
+	POC[0].compno1 = 3;
+	POC[0].prg1 = CPRL;
+	POC[1].tile  = 1;
+	POC[1].resno0  = numres-1; 
+	POC[1].compno0 = 0;
+	POC[1].layno1  = 1;
+	POC[1].resno1  = numres;
+	POC[1].compno1 = 3;
+	POC[1].prg1 = CPRL;
+	return 2;
+}
+
+void cinema_parameters(opj_cparameters_t *parameters){
+	parameters->tile_size_on = false;
+	parameters->cp_tdx=1;
+	parameters->cp_tdy=1;
+	
+	/*Tile part*/
+	parameters->tp_flag = 'C';
+	parameters->tp_on = 1;
+
+	/*Tile and Image shall be at (0,0)*/
+	parameters->cp_tx0 = 0;
+	parameters->cp_ty0 = 0;
+	parameters->image_offset_x0 = 0;
+	parameters->image_offset_y0 = 0;
+
+	/*Codeblock size= 32*32*/
+	parameters->cblockw_init = 32;	
+	parameters->cblockh_init = 32;
+	parameters->csty |= 0x01;
+
+	/*The progression order shall be CPRL*/
+	parameters->prog_order = CPRL;
+
+	/* No ROI */
+	parameters->roi_compno = -1;
+
+	parameters->subsampling_dx = 1;		parameters->subsampling_dy = 1;
+
+	/* 9-7 transform */
+	parameters->irreversible = 1;
+
+}
+
+void cinema_setup_encoder(opj_cparameters_t *parameters,opj_image_t *image, img_fol_t *img_fol){
+	int i;
+	float temp_rate;
+
+	switch (parameters->cp_cinema){
+	case CINEMA2K_24:
+	case CINEMA2K_48:
+		if(parameters->numresolution > 6){
+			parameters->numresolution = 6;
+		}
+		if (!((image->comps[0].w == 2048) || (image->comps[0].h == 1080))){
+			fprintf(stdout,"Image coordinates %d x %d is not 2K compliant.\nJPEG Digital Cinema Profile-3 "
+				"(2K profile) compliance requires that at least one of coordinates match 2048 x 1080\n",
+				image->comps[0].w,image->comps[0].h);
+			parameters->cp_rsiz = STD_RSIZ;
+		}
+	break;
+	
+	case CINEMA4K_24:
+		if(parameters->numresolution < 1){
+				parameters->numresolution = 1;
+			}else if(parameters->numresolution > 7){
+				parameters->numresolution = 7;
+			}
+		if (!((image->comps[0].w == 4096) || (image->comps[0].h == 2160))){
+			fprintf(stdout,"Image coordinates %d x %d is not 4K compliant.\nJPEG Digital Cinema Profile-4" 
+				"(4K profile) compliance requires that at least one of coordinates match 4096 x 2160\n",
+				image->comps[0].w,image->comps[0].h);
+			parameters->cp_rsiz = STD_RSIZ;
+		}
+		parameters->numpocs = initialise_4K_poc(parameters->POC,parameters->numresolution);
+		break;
+	case OFF:
+		/* do nothing */
+		break;
+	}
+
+	switch (parameters->cp_cinema){
+	case CINEMA2K_24:
+	case CINEMA4K_24:
+		for(i=0 ; i<parameters->tcp_numlayers ; i++){
+			temp_rate = 0 ;
+			if (img_fol->rates[i]== 0){
+				parameters->tcp_rates[0]= ((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+					(CINEMA_24_CS * 8 * image->comps[0].dx * image->comps[0].dy);
+			}else{
+				temp_rate =((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+					(img_fol->rates[i] * 8 * image->comps[0].dx * image->comps[0].dy);
+				if (temp_rate > CINEMA_24_CS ){
+					parameters->tcp_rates[i]= ((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+						(CINEMA_24_CS * 8 * image->comps[0].dx * image->comps[0].dy);
+				}else{
+					parameters->tcp_rates[i]= img_fol->rates[i];
+				}
+			}
+		}
+		parameters->max_comp_size = COMP_24_CS;
+		break;
+		
+	case CINEMA2K_48:
+		for(i=0 ; i<parameters->tcp_numlayers ; i++){
+			temp_rate = 0 ;
+			if (img_fol->rates[i]== 0){
+				parameters->tcp_rates[0]= ((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+					(CINEMA_48_CS * 8 * image->comps[0].dx * image->comps[0].dy);
+			}else{
+				temp_rate =((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+					(img_fol->rates[i] * 8 * image->comps[0].dx * image->comps[0].dy);
+				if (temp_rate > CINEMA_48_CS ){
+					parameters->tcp_rates[0]= ((float) (image->numcomps * image->comps[0].w * image->comps[0].h * image->comps[0].prec))/ 
+						(CINEMA_48_CS * 8 * image->comps[0].dx * image->comps[0].dy);
+				}else{
+					parameters->tcp_rates[i]= img_fol->rates[i];
+				}
+			}
+		}
+		parameters->max_comp_size = COMP_48_CS;
+		break;
+	case OFF:
+		/* do nothing */
+		break;
+	}
+	parameters->cp_disto_alloc = 1;
+}
+
+
+static opj_image_t* ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters) {
+	
+	unsigned char *rect;
+	float *rect_float;
+	
+	int subsampling_dx = parameters->subsampling_dx;
+	int subsampling_dy = parameters->subsampling_dy;
+	
+
+	int i, numcomps, w, h, prec;
+	int x,y, y_row;
+	OPJ_COLOR_SPACE color_space;
+	opj_image_cmptparm_t cmptparm[4];	/* maximum of 4 components */
+	opj_image_t * image = NULL;
+	
+	img_fol_t img_fol; /* only needed for cinema presets */
+	memset(&img_fol,0,sizeof(img_fol_t));
+	
+	if (ibuf->ftype & JP2_CINE) {
+		
+		if (ibuf->x==4096 || ibuf->y==2160)
+			parameters->cp_cinema= CINEMA4K_24;
+		else {
+			if (ibuf->ftype & JP2_CINE_48FPS) {
+				parameters->cp_cinema= CINEMA2K_48;
+			}
+			else {
+				parameters->cp_cinema= CINEMA2K_24;
+			}
+		}
+		if (parameters->cp_cinema){
+			img_fol.rates = (float*)MEM_mallocN(parameters->tcp_numlayers * sizeof(float), "jp2_rates");
+			for(i=0; i< parameters->tcp_numlayers; i++){
+				img_fol.rates[i] = parameters->tcp_rates[i];
+			}
+			cinema_parameters(parameters);
+		}
+		
+		color_space= CLRSPC_SYCC;
+		prec= 12;
+		numcomps= 3;
+	}
+	else { 
+		/* Get settings from the imbuf */
+		color_space = (ibuf->ftype & JP2_YCC) ? CLRSPC_SYCC : CLRSPC_SRGB;
+		
+		if (ibuf->ftype & JP2_16BIT)		prec= 16;
+		else if (ibuf->ftype & JP2_12BIT)	prec= 12;
+		else 						prec= 8;
+		
+		/* 32bit images == alpha channel */
+		/* grayscale not supported yet */
+		numcomps= (ibuf->depth==32) ? 4 : 3;
+	}
+	
+	w= ibuf->x;
+	h= ibuf->y;
+	
+	
+	/* initialize image components */
+	memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t));
+	for(i = 0; i < numcomps; i++) {
+		cmptparm[i].prec = prec;
+		cmptparm[i].bpp = prec;
+		cmptparm[i].sgnd = 0;
+		cmptparm[i].dx = subsampling_dx;
+		cmptparm[i].dy = subsampling_dy;
+		cmptparm[i].w = w;
+		cmptparm[i].h = h;
+	}
+	/* create the image */
+	image = opj_image_create(numcomps, &cmptparm[0], color_space);
+	if(!image) {
+		printf("Error: opj_image_create() failed\n");
+		return NULL;
+	}
+
+	/* set image offset and reference grid */
+	image->x0 = parameters->image_offset_x0;
+	image->y0 = parameters->image_offset_y0;
+	image->x1 = parameters->image_offset_x0 + (w - 1) *	subsampling_dx + 1;
+	image->y1 = parameters->image_offset_y0 + (h - 1) *	subsampling_dy + 1;
+	
+	/* set image data */
+	rect = (unsigned char*) ibuf->rect;
+	rect_float= ibuf->rect_float;
+	
+	if (rect_float && rect && prec==8) {
+		/* No need to use the floating point buffer, just write the 8 bits from the char buffer */
+		rect_float= NULL;
+	}
+	
+	
+	if (rect_float) {
+		switch (prec) {
+		case 8: /* Convert blenders float color channels to 8,12 or 16bit ints */
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect_float+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i] = DOWNSAMPLE_FLOAT_TO_8BIT(rect_float[0]);
+					image->comps[1].data[i] = DOWNSAMPLE_FLOAT_TO_8BIT(rect_float[1]);
+					image->comps[2].data[i] = DOWNSAMPLE_FLOAT_TO_8BIT(rect_float[2]);
+					if (numcomps>3)
+						image->comps[3].data[i] = DOWNSAMPLE_FLOAT_TO_8BIT(rect_float[3]);
+				}
+			}
+			break;
+			
+		case 12:
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect_float+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i] = DOWNSAMPLE_FLOAT_TO_12BIT(rect_float[0]);
+					image->comps[1].data[i] = DOWNSAMPLE_FLOAT_TO_12BIT(rect_float[1]);
+					image->comps[2].data[i] = DOWNSAMPLE_FLOAT_TO_12BIT(rect_float[2]);
+					if (numcomps>3)
+						image->comps[3].data[i] = DOWNSAMPLE_FLOAT_TO_12BIT(rect_float[3]);
+				}
+			}
+			break;
+		case 16:
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect_float+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i] = DOWNSAMPLE_FLOAT_TO_16BIT(rect_float[0]);
+					image->comps[1].data[i] = DOWNSAMPLE_FLOAT_TO_16BIT(rect_float[1]);
+					image->comps[2].data[i] = DOWNSAMPLE_FLOAT_TO_16BIT(rect_float[2]);
+					if (numcomps>3)
+						image->comps[3].data[i] = DOWNSAMPLE_FLOAT_TO_16BIT(rect_float[3]);
+				}
+			}
+			break;
+		}
+	} else {
+		/* just use rect*/
+		switch (prec) {
+		case 8:
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i] = rect[0];
+					image->comps[1].data[i] = rect[1];
+					image->comps[2].data[i] = rect[2];
+					if (numcomps>3)
+						image->comps[3].data[i] = rect[3];
+				}
+			}
+			break;
+			
+		case 12: /* Up Sampling, a bit pointless but best write the bit depth requested */
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i]= UPSAMPLE_8_TO_12(rect[0]);
+					image->comps[1].data[i]= UPSAMPLE_8_TO_12(rect[1]);
+					image->comps[2].data[i]= UPSAMPLE_8_TO_12(rect[2]);
+					if (numcomps>3)
+						image->comps[3].data[i]= UPSAMPLE_8_TO_12(rect[3]);
+				}
+			}
+			break;
+		case 16:
+			for(y=h-1; y>=0; y--) {
+				y_row = y*w;
+				for(x=0; x<w; x++, rect+=4) {
+					i = y_row + x;
+				
+					image->comps[0].data[i]= UPSAMPLE_8_TO_16(rect[0]);
+					image->comps[1].data[i]= UPSAMPLE_8_TO_16(rect[1]);
+					image->comps[2].data[i]= UPSAMPLE_8_TO_16(rect[2]);
+					if (numcomps>3)
+						image->comps[3].data[i]= UPSAMPLE_8_TO_16(rect[3]);
+				}
+			}
+			break;
+		}
+	}
+	
+	/* Decide if MCT should be used */
+	parameters->tcp_mct = image->numcomps == 3 ? 1 : 0;
+	
+	if(parameters->cp_cinema){
+		cinema_setup_encoder(parameters,image,&img_fol);
+	}
+	
+	if (img_fol.rates)
+		MEM_freeN(img_fol.rates);
+	
+	return image;
+}
+
+
+/* Found write info at http://users.ece.gatech.edu/~slabaugh/personal/c/bitmapUnix.c */
+short imb_savejp2(struct ImBuf *ibuf, char *name, int flags) {
+	
+	int quality = ibuf->ftype & 0xff;
+	
+	int bSuccess;
+	opj_cparameters_t parameters;	/* compression parameters */
+	opj_event_mgr_t event_mgr;		/* event manager */
+	opj_image_t *image = NULL;
+	
+	/*
+	configure the event callbacks (not required)
+	setting of each callback is optionnal
+	*/
+	memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
+	event_mgr.error_handler = error_callback;
+	event_mgr.warning_handler = warning_callback;
+	event_mgr.info_handler = info_callback;
+	
+	/* set encoding parameters to default values */
+	opj_set_default_encoder_parameters(&parameters);
+	
+	/* compression ratio */
+	/* invert range, from 10-100, 100-1
+	* where jpeg see's 1 and highest quality (lossless) and 100 is very low quality*/
+	parameters.tcp_rates[0]= ((100-quality)/90.0f*99.0f) + 1;
+
+	
+	parameters.tcp_numlayers = 1; // only one resolution
+	parameters.cp_disto_alloc = 1;
+
+	image= ibuftoimage(ibuf, &parameters);
+	
+	
+	{			/* JP2 format output */
+		int codestream_length;
+		opj_cio_t *cio = NULL;
+		FILE *f = NULL;
+
+		/* get a JP2 compressor handle */
+		opj_cinfo_t* cinfo = opj_create_compress(CODEC_JP2);
+
+		/* catch events using our callbacks and give a local context */
+		opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);			
+
+		/* setup the encoder parameters using the current image and using user parameters */
+		opj_setup_encoder(cinfo, &parameters, image);
+
+		/* open a byte stream for writing */
+		/* allocate memory for all tiles */
+		cio = opj_cio_open((opj_common_ptr)cinfo, NULL, 0);
+
+		/* encode the image */
+		bSuccess = opj_encode(cinfo, cio, image, NULL); /* last arg used to be parameters.index but this deprecated */
+		
+		if (!bSuccess) {
+			opj_cio_close(cio);
+			fprintf(stderr, "failed to encode image\n");
+			return 0;
+		}
+		codestream_length = cio_tell(cio);
+
+		/* write the buffer to disk */
+		f = fopen(name, "wb");
+		
+		if (!f) {
+			fprintf(stderr, "failed to open %s for writing\n", name);
+			return 1;
+		}
+		fwrite(cio->buffer, 1, codestream_length, f);
+		fclose(f);
+		fprintf(stderr,"Generated outfile %s\n",name);
+		/* close and free the byte stream */
+		opj_cio_close(cio);
+		
+		/* free remaining compression structures */
+		opj_destroy_compress(cinfo);
+	}
+
+	/* free image data */
+	opj_image_destroy(image);
+	
+	return 1;
+}
+
+#endif /* WITH_OPENJPEG */
-- 
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