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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. */
/** \file
* \ingroup imbcineon
*/
#include "logImageCore.h"
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "IMB_filetype.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "IMB_colormanagement.h"
#include "IMB_colormanagement_intern.h"
#include "BKE_global.h"
#include "MEM_guardedalloc.h"
static struct ImBuf *imb_load_dpx_cineon(
const uchar *mem, size_t size, int use_cineon, int flags, char colorspace[IM_MAX_SPACE])
{
ImBuf *ibuf;
LogImageFile *image;
int width, height, depth;
colorspace_set_default_role(colorspace, IM_MAX_SPACE, COLOR_ROLE_DEFAULT_FLOAT);
logImageSetVerbose((G.debug & G_DEBUG) ? 1 : 0);
image = logImageOpenFromMemory(mem, size);
if (image == NULL) {
printf("DPX/Cineon: error opening image.\n");
return NULL;
}
logImageGetSize(image, &width, &height, &depth);
ibuf = IMB_allocImBuf(width, height, 32, IB_rectfloat | flags);
if (ibuf == NULL) {
logImageClose(image);
return NULL;
}
if (!(flags & IB_test)) {
if (logImageGetDataRGBA(image, ibuf->rect_float, 1) != 0) {
logImageClose(image);
IMB_freeImBuf(ibuf);
return NULL;
}
IMB_flipy(ibuf);
}
logImageClose(image);
ibuf->ftype = use_cineon ? IMB_FTYPE_CINEON : IMB_FTYPE_DPX;
if (flags & IB_alphamode_detect) {
ibuf->flags |= IB_alphamode_premul;
}
return ibuf;
}
static int imb_save_dpx_cineon(ImBuf *ibuf, const char *filepath, int use_cineon, int flags)
{
LogImageFile *logImage;
float *fbuf;
float *fbuf_ptr;
uchar *rect_ptr;
int x, y, depth, bitspersample, rvalue;
if (flags & IB_mem) {
printf("DPX/Cineon: saving in memory is not supported.\n");
return 0;
}
logImageSetVerbose((G.debug & G_DEBUG) ? 1 : 0);
depth = (ibuf->planes + 7) >> 3;
if (depth > 4 || depth < 3) {
printf("DPX/Cineon: unsupported depth: %d for file: '%s'\n", depth, filepath);
return 0;
}
if (ibuf->foptions.flag & CINEON_10BIT) {
bitspersample = 10;
}
else if (ibuf->foptions.flag & CINEON_12BIT) {
bitspersample = 12;
}
else if (ibuf->foptions.flag & CINEON_16BIT) {
bitspersample = 16;
}
else {
bitspersample = 8;
}
logImage = logImageCreate(filepath,
use_cineon,
ibuf->x,
ibuf->y,
bitspersample,
(depth == 4),
(ibuf->foptions.flag & CINEON_LOG),
-1,
-1,
-1,
"Blender");
if (logImage == NULL) {
printf("DPX/Cineon: error creating file.\n");
return 0;
}
if (ibuf->rect_float != NULL && bitspersample != 8) {
/* Don't use the float buffer to save 8 BPP picture to prevent color banding
* (there's no dithering algorithm behind the #logImageSetDataRGBA function). */
fbuf = (float *)MEM_mallocN(sizeof(float[4]) * ibuf->x * ibuf->y,
"fbuf in imb_save_dpx_cineon");
for (y = 0; y < ibuf->y; y++) {
float *dst_ptr = fbuf + 4 * ((ibuf->y - y - 1) * ibuf->x);
float *src_ptr = ibuf->rect_float + 4 * (y * ibuf->x);
memcpy(dst_ptr, src_ptr, 4 * ibuf->x * sizeof(float));
}
rvalue = (logImageSetDataRGBA(logImage, fbuf, 1) == 0);
MEM_freeN(fbuf);
}
else {
if (ibuf->rect == NULL) {
IMB_rect_from_float(ibuf);
}
fbuf = (float *)MEM_mallocN(sizeof(float[4]) * ibuf->x * ibuf->y,
"fbuf in imb_save_dpx_cineon");
if (fbuf == NULL) {
printf("DPX/Cineon: error allocating memory.\n");
logImageClose(logImage);
return 0;
}
for (y = 0; y < ibuf->y; y++) {
for (x = 0; x < ibuf->x; x++) {
fbuf_ptr = fbuf + 4 * ((ibuf->y - y - 1) * ibuf->x + x);
rect_ptr = (uchar *)ibuf->rect + 4 * (y * ibuf->x + x);
fbuf_ptr[0] = (float)rect_ptr[0] / 255.0f;
fbuf_ptr[1] = (float)rect_ptr[1] / 255.0f;
fbuf_ptr[2] = (float)rect_ptr[2] / 255.0f;
fbuf_ptr[3] = (depth == 4) ? ((float)rect_ptr[3] / 255.0f) : 1.0f;
}
}
rvalue = (logImageSetDataRGBA(logImage, fbuf, 0) == 0);
MEM_freeN(fbuf);
}
logImageClose(logImage);
return rvalue;
}
bool imb_save_cineon(struct ImBuf *buf, const char *filepath, int flags)
{
return imb_save_dpx_cineon(buf, filepath, 1, flags);
}
bool imb_is_a_cineon(const uchar *buf, size_t size)
{
return logImageIsCineon(buf, size);
}
ImBuf *imb_load_cineon(const uchar *mem, size_t size, int flags, char colorspace[IM_MAX_SPACE])
{
if (!imb_is_a_cineon(mem, size)) {
return NULL;
}
return imb_load_dpx_cineon(mem, size, 1, flags, colorspace);
}
bool imb_save_dpx(struct ImBuf *buf, const char *filepath, int flags)
{
return imb_save_dpx_cineon(buf, filepath, 0, flags);
}
bool imb_is_a_dpx(const uchar *buf, size_t size)
{
return logImageIsDpx(buf, size);
}
ImBuf *imb_load_dpx(const uchar *mem, size_t size, int flags, char colorspace[IM_MAX_SPACE])
{
if (!imb_is_a_dpx(mem, size)) {
return NULL;
}
return imb_load_dpx_cineon(mem, size, 0, flags, colorspace);
}
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