Defines three new functions

Declares three new functions
Calls the three new functions
Collects data for CIELab, sets the color_space for EYCC and CMYK
This commit is contained in:
szukw000 2015-07-30 23:31:12 +00:00
parent 75a33de3bc
commit 238f4419ab
4 changed files with 365 additions and 47 deletions

View File

@ -305,6 +305,7 @@ void color_sycc_to_rgb(opj_image_t *img)
}/* color_sycc_to_rgb() */
#if defined(OPJ_HAVE_LIBLCMS2) || defined(OPJ_HAVE_LIBLCMS1)
#ifdef OPJ_HAVE_LIBLCMS1
/* Bob Friesenhahn proposed:*/
#define cmsSigXYZData icSigXYZData
@ -561,5 +562,253 @@ else
#endif
}/* color_apply_icc_profile() */
#endif /* OPJ_HAVE_LIBLCMS2 || OPJ_HAVE_LIBLCMS1 */
void color_apply_conversion(opj_image_t *image)
{
int *row;
int enumcs, numcomps;
image->color_space = OPJ_CLRSPC_SRGB;
numcomps = image->numcomps;
if(numcomps != 3)
{
fprintf(stderr,"%s:%d:\n\tnumcomps %d not handled. Quitting.\n",
__FILE__,__LINE__,numcomps);
return;
}
row = (int*)image->icc_profile_buf;
enumcs = row[0];
if(enumcs == 14)// CIELab
{
int *L, *a, *b, *red, *green, *blue;
int *src0, *src1, *src2, *dst0, *dst1, *dst2;
double rl, ol, ra, oa, rb, ob, prec0, prec1, prec2;
double minL, maxL, mina, maxa, minb, maxb;
unsigned int default_type;
unsigned int i, max;
cmsHPROFILE in, out;
cmsHTRANSFORM transform;
cmsUInt16Number RGB[3];
cmsCIELab Lab;
in = cmsCreateLab4Profile(NULL);
out = cmsCreate_sRGBProfile();
transform =
cmsCreateTransform(in, TYPE_Lab_DBL, out, TYPE_RGB_16,
INTENT_PERCEPTUAL, 0);
#ifdef HAVE_LIBLCMS2
cmsCloseProfile(in);
cmsCloseProfile(out);
#endif
if(transform == NULL)
{
#ifdef HAVE_LIBLCMS1
cmsCloseProfile(in);
cmsCloseProfile(out);
#endif
return;
}
prec0 = (double)image->comps[0].prec;
prec1 = (double)image->comps[1].prec;
prec2 = (double)image->comps[2].prec;
default_type = row[1];
if(default_type == 0x44454600)// DEF : default
{
rl = 100; ra = 170; rb = 200;
ol = 0;
oa = pow(2, prec1 - 1);
ob = pow(2, prec2 - 2) + pow(2, prec2 - 3);
}
else
{
rl = row[2]; ra = row[4]; rb = row[6];
ol = row[3]; oa = row[5]; ob = row[7];
}
L = src0 = image->comps[0].data;
a = src1 = image->comps[1].data;
b = src2 = image->comps[2].data;
max = image->comps[0].w * image->comps[0].h;
red = dst0 = (int*)malloc(max * sizeof(int));
green = dst1 = (int*)malloc(max * sizeof(int));
blue = dst2 = (int*)malloc(max * sizeof(int));
minL = -(rl * ol)/(pow(2, prec0)-1);
maxL = minL + rl;
mina = -(ra * oa)/(pow(2, prec1)-1);
maxa = mina + ra;
minb = -(rb * ob)/(pow(2, prec2)-1);
maxb = minb + rb;
for(i = 0; i < max; ++i)
{
Lab.L = minL + (double)(*L) * (maxL - minL)/(pow(2, prec0)-1); ++L;
Lab.a = mina + (double)(*a) * (maxa - mina)/(pow(2, prec1)-1); ++a;
Lab.b = minb + (double)(*b) * (maxb - minb)/(pow(2, prec2)-1); ++b;
cmsDoTransform(transform, &Lab, RGB, 1);
*red++ = RGB[0];
*green++ = RGB[1];
*blue++ = RGB[2];
}
cmsDeleteTransform(transform);
#ifdef HAVE_LIBLCMS1
cmsCloseProfile(in);
cmsCloseProfile(out);
#endif
free(src0); image->comps[0].data = dst0;
free(src1); image->comps[1].data = dst1;
free(src2); image->comps[2].data = dst2;
image->color_space = OPJ_CLRSPC_SRGB;
image->comps[0].prec = 16;
image->comps[1].prec = 16;
image->comps[2].prec = 16;
return;
}
fprintf(stderr,"%s:%d:\n\tenumCS %d not handled. Ignoring.\n",
__FILE__,__LINE__, enumcs);
}// color_apply_conversion()
#endif // HAVE_LIBLCMS2 || HAVE_LIBLCMS1
void color_cmyk_to_rgb(opj_image_t *image)
{
int *R, *G, *B, *dst0, *dst1, *dst2;
int *sc, *sm, *sy, *sk, *src0, *src1, *src2, *src3;
float C, M, Y, K;
unsigned int w, h, max, prec, len, i;
w = image->comps[0].w;
h = image->comps[0].h;
prec = image->comps[0].prec;
if(prec != 8) return;
if(image->numcomps != 4) return;
max = w * h;
len = max * sizeof(int);
R = dst0 = (int*)malloc(len);
G = dst1 = (int*)malloc(len);
B = dst2 = (int*)malloc(len);
sc = src0 = image->comps[0].data;
sm = src1 = image->comps[1].data;
sy = src2 = image->comps[2].data;
sk = src3 = image->comps[3].data;
for(i = 0; i < max; ++i)
{
// CMYK and CMY values from 0 to 1
//
C = (float)(*sc++)/(float)255.;
M = (float)(*sm++)/(float)255;
Y = (float)(*sy++)/(float)255;
K = (float)(*sk++)/(float)255;
// CMYK -> CMY
//
C = ( C * ( (float)1. - K ) + K );
M = ( M * ( (float)1. - K ) + K );
Y = ( Y * ( (float)1. - K ) + K );
// CMY -> RGB : RGB results from 0 to 255
//
*R++ = (int)(unsigned char)(( (float)1. - C ) * (float)255.);
*G++ = (int)(unsigned char)(( (float)1. - M ) * (float)255.);
*B++ = (int)(unsigned char)(( (float)1. - Y ) * (float)255.);
}
free(src0); image->comps[0].data = dst0;
free(src1); image->comps[1].data = dst1;
free(src2); image->comps[2].data = dst2;
free(src3); image->comps[3].data = NULL;
image->numcomps = 3;
image->color_space = OPJ_CLRSPC_SRGB;
}// color_cmyk_to_rgb()
//
// This code has been adopted from sjpx_openjpeg.c of ghostscript
//
void color_esycc_to_rgb(opj_image_t *image)
{
int *s0, *s1, *s2, *src0, *src1, *src2;
int *r, *g, *b, *dst0, *dst1, *dst2;
int y, cb, cr, sign1, sign2, val;
unsigned int w, h, max, i;
int flip_value = (1 << (image->comps[0].prec-1));
int max_value = (~(-1 << image->comps[0].prec));
if(image->numcomps != 3) return;
w = image->comps[0].w;
h = image->comps[0].h;
s0 = src0 = image->comps[0].data;
s1 = src1 = image->comps[1].data;
s2 = src2 = image->comps[2].data;
sign1 = image->comps[1].sgnd;
sign2 = image->comps[2].sgnd;
max = w * h;
r = dst0 = (int*)malloc(max * sizeof(int));
g = dst1 = (int*)malloc(max * sizeof(int));
b = dst2 = (int*)malloc(max * sizeof(int));
for(i = 0; i < max; ++i)
{
y = *s0++; cb = *s1++; cr = *s2++;
if( !sign1) cb -= flip_value;
if( !sign2) cr -= flip_value;
val = (int)
((float)y - (float)0.0000368 * (float)cb
+ (float)1.40199 * (float)cr + (float)0.5);
if(val > max_value) val = max_value; else if(val < 0) val = 0;
*r++ = val;
val = (int)
((float)1.0003 * (float)y - (float)0.344125 * (float)cb
- (float)0.7141128 * (float)cr + (float)0.5);
if(val > max_value) val = max_value; else if(val < 0) val = 0;
*g++ = val;
val = (int)
((float)0.999823 * (float)y + (float)1.77204 * (float)cb
- (float)0.000008 *(float)cr + (float)0.5);
if(val > max_value) val = max_value; else if(val < 0) val = 0;
*b++ = val;
}
free(src0); image->comps[0].data = dst0;
free(src1); image->comps[1].data = dst1;
free(src2); image->comps[2].data = dst2;
image->numcomps = 3;
image->color_space = OPJ_CLRSPC_SRGB;
}// color_esycc_to_rgb()

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@ -40,5 +40,8 @@
extern void color_sycc_to_rgb(opj_image_t *img);
extern void color_apply_icc_profile(opj_image_t *image);
extern void color_apply_conversion(opj_image_t *image);
extern void color_cmyk_to_rgb(opj_image_t *image);
extern void color_esycc_to_rgb(opj_image_t *image);
#endif /* _OPJ_COLOR_H_ */

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@ -1349,10 +1349,6 @@ int main(int argc, char **argv)
/* Close the byte stream */
opj_stream_destroy(l_stream);
if(image->color_space == OPJ_CLRSPC_SYCC){
color_sycc_to_rgb(image); /* FIXME */
}
if( image->color_space != OPJ_CLRSPC_SYCC
&& image->numcomps == 3 && image->comps[0].dx == image->comps[0].dy
&& image->comps[1].dx != 1 )
@ -1360,9 +1356,24 @@ int main(int argc, char **argv)
else if (image->numcomps <= 2)
image->color_space = OPJ_CLRSPC_GRAY;
if(image->color_space == OPJ_CLRSPC_SYCC){
color_sycc_to_rgb(image);
}
else
if(image->color_space == OPJ_CLRSPC_CMYK){
color_cmyk_to_rgb(image);
}
else
if(image->color_space == OPJ_CLRSPC_EYCC){
color_esycc_to_rgb(image);
}
if(image->icc_profile_buf) {
#if defined(OPJ_HAVE_LIBLCMS1) || defined(OPJ_HAVE_LIBLCMS2)
color_apply_icc_profile(image); /* FIXME */
if(image->icc_profile_len)
color_apply_icc_profile(image);
else
color_apply_conversion(image);
#endif
free(image->icc_profile_buf);
image->icc_profile_buf = NULL; image->icc_profile_len = 0;

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@ -849,6 +849,8 @@ static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].cn, nr_channels);
return OPJ_FALSE;
}
if (info[i].asoc > 65534) continue;
if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].asoc - 1, nr_channels);
return OPJ_FALSE;
@ -966,7 +968,7 @@ static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
old_comps = image->comps;
new_comps = (opj_image_comp_t*)
opj_malloc(nr_channels * sizeof(opj_image_comp_t));
opj_calloc(nr_channels, sizeof(opj_image_comp_t));
if (!new_comps) {
/* FIXME no error code for opj_jp2_apply_pclr */
/* FIXME event manager error callback */
@ -1312,11 +1314,11 @@ static OPJ_BOOL opj_jp2_read_cdef( opj_jp2_t * jp2,
return OPJ_FALSE;
}
cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
cdef_info = (opj_jp2_cdef_info_t*) opj_calloc(1, l_value * sizeof(opj_jp2_cdef_info_t));
if (!cdef_info)
return OPJ_FALSE;
jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_calloc(1, sizeof(opj_jp2_cdef_t));
if(!jp2->color.jp2_cdef)
{
opj_free(cdef_info);
@ -1390,6 +1392,50 @@ static OPJ_BOOL opj_jp2_read_colr( opj_jp2_t *jp2,
opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
p_colr_header_data += 4;
if(jp2->enumcs == 14)/* CIELab */
{
OPJ_UINT32 *cielab;
OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
cielab[0] = 14; /* enumcs */
if(p_colr_header_size == 7)/* default values */
{
rl = ra = rb = ol = oa = ob = 0;
il = 0x00443530; /* D50 */
cielab[1] = 0x44454600;/* DEF */
}
else
if(p_colr_header_size == 35)
{
opj_read_bytes(p_colr_header_data, &rl, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &ol, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &ra, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &oa, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &rb, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &ob, 4);
p_colr_header_data += 4;
opj_read_bytes(p_colr_header_data, &il, 4);
p_colr_header_data += 4;
cielab[1] = 0;
}
cielab[2] = rl; cielab[4] = ra; cielab[6] = rb;
cielab[3] = ol; cielab[5] = oa; cielab[7] = ob;
cielab[8] = il;
jp2->color.icc_profile_buf = (unsigned char*)cielab;
jp2->color.icc_profile_len = 0;
}
jp2->color.jp2_has_colr = 1;
}
else if (jp2->meth == 2) {
@ -1452,6 +1498,9 @@ OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
p_image->color_space = OPJ_CLRSPC_SYCC;
else if (jp2->enumcs == 24)
p_image->color_space = OPJ_CLRSPC_EYCC;
else
if (jp2->enumcs == 12)
p_image->color_space = OPJ_CLRSPC_CMYK;
else
p_image->color_space = OPJ_CLRSPC_UNKNOWN;
@ -1840,14 +1889,14 @@ OPJ_BOOL opj_jp2_setup_encoder( opj_jp2_t *jp2,
opj_event_msg(p_manager, EVT_WARNING, "Multiple alpha channels specified. No cdef box will be created.\n");
}
if (alpha_count == 1U) { /* if here, we know what we can do */
jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_calloc(1, sizeof(opj_jp2_cdef_t));
if(!jp2->color.jp2_cdef) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to setup the JP2 encoder\n");
return OPJ_FALSE;
}
/* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
/* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(image->numcomps * sizeof(opj_jp2_cdef_info_t));
jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_calloc(1, image->numcomps * sizeof(opj_jp2_cdef_info_t));
if (!jp2->color.jp2_cdef->info) {
/* memory will be freed by opj_jp2_destroy */
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to setup the JP2 encoder\n");
@ -2767,6 +2816,12 @@ OPJ_BOOL opj_jp2_get_tile( opj_jp2_t *p_jp2,
p_image->color_space = OPJ_CLRSPC_GRAY;
else if (p_jp2->enumcs == 18)
p_image->color_space = OPJ_CLRSPC_SYCC;
else
if (p_jp2->enumcs == 24)
p_image->color_space = OPJ_CLRSPC_EYCC;
else
if (p_jp2->enumcs == 12)
p_image->color_space = OPJ_CLRSPC_CMYK;
else
p_image->color_space = OPJ_CLRSPC_UNKNOWN;