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/**
*
* ***** 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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
* cineon.c
* contributors: joeedh
* I hearby donate this code and all rights to the Blender Foundation.
* $Id$
*/
#include <stdio.h>
#include <string.h> /*for memcpy*/
#include "logImageLib.h"
#include "cineonlib.h"
#include "dpxlib.h"
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "MEM_guardedalloc.h"
static struct ImBuf *imb_load_dpx_cineon(unsigned char *mem, int use_cineon, int size, int flags)
{
ImBuf *ibuf;
LogImageFile *image;
int x, y;
unsigned short *row;
int width, height, depth;
float *frow;
image = logImageOpenFromMem(mem, size, use_cineon);
if (!image) {
printf("no image!\n");
return NULL;
}
logImageGetSize(image, &width, &height, &depth);
if (depth != 3) { /*need to do greyscale loading eventually.*/
logImageClose(image);
return NULL;
}
if (width == 0 && height == 0) {
logImageClose(image);
return NULL;
}
ibuf = IMB_allocImBuf(width, height, 32, IB_rectfloat | flags, 0);
row = MEM_mallocN(sizeof(unsigned short)*width*depth, "row in cineon_dpx.c");
for (y = 0; y < height; y++) {
unsigned int index = (width) * (height-y-1);
index = index * 4;
frow = &ibuf->rect_float[index];
logImageGetRowBytes(image, row, y);
for (x=0; x<width; x++) {
unsigned short *upix = &row[x*depth];
float *fpix = &frow[x*4];
fpix[0] = ((float)upix[0]) / 65535.0f;
fpix[1] = ((float)upix[1]) / 65535.0f;
fpix[2] = ((float)upix[2]) / 65535.0f;
fpix[3] = 1.0f;
}
}
MEM_freeN(row);
logImageClose(image);
if (flags & IB_rect) {
IMB_rect_from_float(ibuf);
}
return ibuf;
}
static int imb_save_dpx_cineon(ImBuf *buf, char *filename, int use_cineon, int flags)
{
LogImageByteConversionParameters conversion;
int width, height, depth;
LogImageFile* logImage;
unsigned short* line, *pixel;
int i, j;
int index;
float *fline;
conversion.blackPoint = 95;
conversion.whitePoint = 685;
conversion.gamma = 1;
/*
* Get the drawable for the current image...
*/
width = buf->x;
height = buf->y;
depth = 3;
if (!buf->rect_float) return 0;
logImageSetVerbose(0);
logImage = logImageCreate(filename, use_cineon, width, height, depth);
if (!logImage) return 0;
logImageSetByteConversion(logImage, &conversion);
index = 0;
line = MEM_mallocN(sizeof(unsigned short)*depth*width, "line");
/*note that image is flipped when sent to logImageSetRowBytes (see last passed parameter).*/
for (j = 0; j < height; ++j) {
fline = &buf->rect_float[width*j*4];
for (i=0; i<width; i++) {
float *fpix, fpix2[3];
/*we have to convert to cinepaint's 16-bit-per-channel here*/
pixel = &line[i*depth];
fpix = &fline[i*4];
memcpy(fpix2, fpix, sizeof(float)*3);
if (fpix2[0]>=1.0f) fpix2[0] = 1.0f; else if (fpix2[0]<0.0f) fpix2[0]= 0.0f;
if (fpix2[1]>=1.0f) fpix2[1] = 1.0f; else if (fpix2[1]<0.0f) fpix2[1]= 0.0f;
if (fpix2[2]>=1.0f) fpix2[2] = 1.0f; else if (fpix2[2]<0.0f) fpix2[2]= 0.0f;
pixel[0] = (unsigned short)(fpix2[0] * 65535.0f); /*float-float math is faster*/
pixel[1] = (unsigned short)(fpix2[1] * 65535.0f);
pixel[2] = (unsigned short)(fpix2[2] * 65535.0f);
}
logImageSetRowBytes(logImage, (const unsigned short*)line, height-1-j);
}
logImageClose(logImage);
MEM_freeN(line);
return 1;
}
short imb_savecineon(struct ImBuf *buf, char *myfile, int flags)
{
return imb_save_dpx_cineon(buf, myfile, 1, flags);
}
int imb_is_cineon(void *buf)
{
return cineonIsMemFileCineon(buf);
}
ImBuf *imb_loadcineon(unsigned char *mem, int size, int flags)
{
if(imb_is_cineon(mem))
return imb_load_dpx_cineon(mem, 1, size, flags);
return NULL;
}
short imb_save_dpx(struct ImBuf *buf, char *myfile, int flags)
{
return imb_save_dpx_cineon(buf, myfile, 0, flags);
}
short imb_is_dpx(void *buf)
{
return dpxIsMemFileCineon(buf);
}
ImBuf *imb_loaddpx(unsigned char *mem, int size, int flags)
{
if(imb_is_dpx(mem))
return imb_load_dpx_cineon(mem, 0, size, flags);
return NULL;
}
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