77 #include <jasper/jas_config.h> 103 #define JAS_IMAGE_KIBI (JAS_CAST(size_t, 1024)) 104 #define JAS_IMAGE_MEBI (JAS_IMAGE_KIBI * JAS_IMAGE_KIBI) 107 #define JAS_IMAGE_INMEMTHRESH (256 * JAS_IMAGE_MEBI) 113 #define JAS_IMAGE_CT_UNKNOWN 0x10000 114 #define JAS_IMAGE_CT_COLOR(n) ((n) & 0x7fff) 115 #define JAS_IMAGE_CT_OPACITY 0x08000 117 #define JAS_IMAGE_CT_RGB_R 0 118 #define JAS_IMAGE_CT_RGB_G 1 119 #define JAS_IMAGE_CT_RGB_B 2 121 #define JAS_IMAGE_CT_YCBCR_Y 0 122 #define JAS_IMAGE_CT_YCBCR_CB 1 123 #define JAS_IMAGE_CT_YCBCR_CR 2 125 #define JAS_IMAGE_CT_GRAY_Y 0 134 #define JAS_IMAGE_COORD_MAX INT_FAST32_MAX 135 #define JAS_IMAGE_COORD_MIN INT_FAST32_MIN 188 jas_stream_t *stream_;
228 jas_clrspc_t clrspc_;
230 jas_cmprof_t *cmprof_;
278 #define JAS_IMAGE_MAXFMTS 32 285 jas_image_t *(*decode)(jas_stream_t *in,
const char *opts);
288 int (*encode)(
jas_image_t *image, jas_stream_t *out,
const char *opts);
291 int (*validate)(jas_stream_t *in);
346 #define jas_image_width(image) \ 347 ((image)->brx_ - (image)->tlx_) 352 #define jas_image_height(image) \ 353 ((image)->bry_ - (image)->tly_) 359 #define jas_image_tlx(image) \ 366 #define jas_image_tly(image) \ 373 #define jas_image_brx(image) \ 380 #define jas_image_bry(image) \ 386 #define jas_image_numcmpts(image) \ 392 #define jas_image_clrspc(image) \ 398 #define jas_image_setclrspc(image, clrspc) \ 399 ((image)->clrspc_ = (clrspc)) 401 #define jas_image_cmpttype(image, cmptno) \ 402 ((image)->cmpts_[(cmptno)]->type_) 403 #define jas_image_setcmpttype(image, cmptno, type) \ 404 ((image)->cmpts_[(cmptno)]->type_ = (type)) 409 #define jas_image_cmptwidth(image, cmptno) \ 410 ((image)->cmpts_[cmptno]->width_) 415 #define jas_image_cmptheight(image, cmptno) \ 416 ((image)->cmpts_[cmptno]->height_) 421 #define jas_image_cmptsgnd(image, cmptno) \ 422 ((image)->cmpts_[cmptno]->sgnd_) 427 #define jas_image_cmptprec(image, cmptno) \ 428 ((image)->cmpts_[cmptno]->prec_) 433 #define jas_image_cmpthstep(image, cmptno) \ 434 ((image)->cmpts_[cmptno]->hstep_) 439 #define jas_image_cmptvstep(image, cmptno) \ 440 ((image)->cmpts_[cmptno]->vstep_) 445 #define jas_image_cmpttlx(image, cmptno) \ 446 ((image)->cmpts_[cmptno]->tlx_) 451 #define jas_image_cmpttly(image, cmptno) \ 452 ((image)->cmpts_[cmptno]->tly_) 458 #define jas_image_cmptbrx(image, cmptno) \ 459 ((image)->cmpts_[cmptno]->tlx_ + (image)->cmpts_[cmptno]->width_ * \ 460 (image)->cmpts_[cmptno]->hstep_) 466 #define jas_image_cmptbry(image, cmptno) \ 467 ((image)->cmpts_[cmptno]->tly_ + (image)->cmpts_[cmptno]->height_ * \ 468 (image)->cmpts_[cmptno]->vstep_) 535 static inline bool JAS_IMAGE_CDT_GETSGND(uint_least8_t dtype)
537 return (dtype >> 7) & 1;
541 static inline uint_least8_t JAS_IMAGE_CDT_SETSGND(
bool sgnd)
543 return (uint_least8_t)sgnd << 7;
547 static inline uint_least8_t JAS_IMAGE_CDT_GETPREC(uint_least8_t dtype)
553 static inline uint_least8_t JAS_IMAGE_CDT_SETPREC(uint_least8_t dtype)
559 static inline uint_least8_t jas_image_cmptdtype(
const jas_image_t *image,
unsigned cmptno)
561 return JAS_IMAGE_CDT_SETSGND(image->cmpts_[cmptno]->sgnd_) |
562 JAS_IMAGE_CDT_SETPREC(image->cmpts_[cmptno]->prec_);
570 unsigned numlutents,
const int_fast32_t *lutents,
unsigned dtype,
585 unsigned x,
unsigned y, int_fast32_t v);
657 #define jas_image_cmprof(image) ((image)->cmprof_) 692 #define jas_image_setcmprof(image, cmprof) ((image)->cmprof_ = cmprof) 698 jas_cmxform_intent_t intent);
709 #if defined(JAS_INCLUDE_JPG_CODEC) 711 JAS_DLLEXPORT
jas_image_t *jpg_decode(jas_stream_t *in,
const char *optstr);
712 JAS_DLLEXPORT
int jpg_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
713 JAS_DLLEXPORT
int jpg_validate(jas_stream_t *in);
716 #if defined(JAS_INCLUDE_MIF_CODEC) 718 JAS_DLLEXPORT
jas_image_t *mif_decode(jas_stream_t *in,
const char *optstr);
719 JAS_DLLEXPORT
int mif_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
720 JAS_DLLEXPORT
int mif_validate(jas_stream_t *in);
723 #if defined(JAS_INCLUDE_PNM_CODEC) 725 JAS_DLLEXPORT
jas_image_t *pnm_decode(jas_stream_t *in,
const char *optstr);
726 JAS_DLLEXPORT
int pnm_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
727 JAS_DLLEXPORT
int pnm_validate(jas_stream_t *in);
730 #if defined(JAS_INCLUDE_RAS_CODEC) 732 JAS_DLLEXPORT
jas_image_t *ras_decode(jas_stream_t *in,
const char *optstr);
733 JAS_DLLEXPORT
int ras_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
734 JAS_DLLEXPORT
int ras_validate(jas_stream_t *in);
737 #if defined(JAS_INCLUDE_BMP_CODEC) 739 JAS_DLLEXPORT
jas_image_t *bmp_decode(jas_stream_t *in,
const char *optstr);
740 JAS_DLLEXPORT
int bmp_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
741 JAS_DLLEXPORT
int bmp_validate(jas_stream_t *in);
744 #if defined(JAS_INCLUDE_JP2_CODEC) 746 JAS_DLLEXPORT
jas_image_t *jp2_decode(jas_stream_t *in,
const char *optstr);
747 JAS_DLLEXPORT
int jp2_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
748 JAS_DLLEXPORT
int jp2_validate(jas_stream_t *in);
751 #if defined(JAS_INCLUDE_JPC_CODEC) 753 JAS_DLLEXPORT
jas_image_t *jpc_decode(jas_stream_t *in,
const char *optstr);
754 JAS_DLLEXPORT
int jpc_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
755 JAS_DLLEXPORT
int jpc_validate(jas_stream_t *in);
758 #if defined(JAS_INCLUDE_PGX_CODEC) 760 JAS_DLLEXPORT
jas_image_t *pgx_decode(jas_stream_t *in,
const char *optstr);
761 JAS_DLLEXPORT
int pgx_encode(
jas_image_t *image, jas_stream_t *out,
const char *optstr);
762 JAS_DLLEXPORT
int pgx_validate(jas_stream_t *in);
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_image_getcmptbytype(const jas_image_t *image, jas_image_cmpttype_t ctype)
Get an image component by its type.
Definition: jas_image.c:1112
JAS_DLLEXPORT void jas_image_clearfmts(void)
Clear the table of image formats.
Definition: jas_image.c:666
Image class.
Definition: jas_image.h:202
JAS_DLLEXPORT int jas_image_readcmpt(jas_image_t *image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, jas_matrix_t *data)
Read a rectangular region of an image component.
Definition: jas_image.c:470
JAS_DLLEXPORT int jas_image_addcmpt(jas_image_t *image, int cmptno, const jas_image_cmptparm_t *cmptparm)
Add a component to an image.
Definition: jas_image.c:845
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_image_getfmt(jas_stream_t *in)
Get the format of image data in a stream.
Definition: jas_image.c:753
Image component class.
Definition: jas_image.h:160
JAS_DLLEXPORT jas_image_t * jas_image_create0(void)
Create an "empty" image.
Definition: jas_image.c:202
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_image_fmtfromname(const char *filename)
Guess the format of an image file based on its name.
Definition: jas_image.c:774
JAS_DLLEXPORT int jas_image_writecmpt2(jas_image_t *image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, const long *buf)
Write sample data in a component of an image.
Definition: jas_image.c:1177
JAS_DLLEXPORT void jas_image_writecmptsample(jas_image_t *image, unsigned cmptno, unsigned x, unsigned y, int_fast32_t v)
Write a component sample for an image.
Definition: jas_image.c:1089
Component parameters class.
Definition: jas_image.h:243
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT uint_fast32_t jas_image_rawsize(const jas_image_t *image)
Get the raw size of an image (i.e., the nominal size of the image without any compression.
Definition: jas_image.c:816
int_fast32_t jas_image_cmpttype_t
Component type (e.g., color, opacity).
Definition: jas_image.h:145
JAS_DLLEXPORT jas_image_t * jas_image_copy(jas_image_t *image)
Clone an image.
Definition: jas_image.c:224
JAS_DLLEXPORT int jas_image_writecmpt(jas_image_t *image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, const jas_matrix_t *data)
Write a rectangular region of an image component.
Definition: jas_image.c:570
int_fast16_t jas_image_smpltype_t
Component sample data format (e.g., real/integer, signedness, precision).
Definition: jas_image.h:151
Image format-dependent operations.
Definition: jas_image.h:283
JAS_DLLEXPORT jas_image_t * jas_image_create(unsigned numcmpts, const jas_image_cmptparm_t *cmptparms, jas_clrspc_t clrspc)
Create an image.
Definition: jas_image.c:127
JAS_DLLEXPORT int jas_image_encode(jas_image_t *image, jas_stream_t *out, int fmt, const char *optstr)
Write an image to a stream in a specified format.
Definition: jas_image.c:454
JAS_DLLEXPORT int jas_image_readcmpt2(jas_image_t *image, unsigned cmptno, jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height, long *buf)
Read sample data in a component of an image.
Definition: jas_image.c:1142
int_fast32_t jas_image_coord_t
Image coordinate.
Definition: jas_image.h:133
JAS_DLLEXPORT jas_image_t * jas_image_decode(jas_stream_t *in, int fmt, const char *optstr)
Create an image from a stream in some specified format.
Definition: jas_image.c:416
JAS_DLLEXPORT int jas_image_readcmptsample(jas_image_t *image, unsigned cmptno, unsigned x, unsigned y)
Read a component sample for an image.
Definition: jas_image.c:1067
JAS_DLLEXPORT int jas_image_depalettize(jas_image_t *image, unsigned cmptno, unsigned numlutents, const int_fast32_t *lutents, unsigned dtype, unsigned newcmptno)
Depalettize an image.
Definition: jas_image.c:1025
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_image_strtofmt(const char *s)
Get the ID for the image format with the specified name.
Definition: jas_image.c:735
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_image_ishomosamp(const jas_image_t *image)
???
Definition: jas_image.c:1308
JAS_DLLEXPORT int jas_image_copycmpt(jas_image_t *dstimage, unsigned dstcmptno, jas_image_t *srcimage, unsigned srccmptno)
Copy a component from one image to another.
Definition: jas_image.c:974
JAS_DLLEXPORT jas_image_t * jas_image_chclrspc(jas_image_t *image, const jas_cmprof_t *outprof, jas_cmxform_intent_t intent)
Change the color space for an image.
Definition: jas_image.c:1458
int_fast16_t jas_image_colorspc_t
Color space (e.g., RGB, YCbCr).
Definition: jas_image.h:140
JAS_ATTRIBUTE_CONST JAS_DLLEXPORT const jas_image_fmtinfo_t * jas_image_lookupfmtbyid(int id)
Lookup image format information by the format ID.
Definition: jas_image.c:876
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT bool jas_image_cmpt_domains_same(const jas_image_t *image)
Test if all components are specified at the same positions in space.
Definition: jas_image.c:799
JAS_DLLEXPORT void jas_image_dump(jas_image_t *image, FILE *out)
Dump the information for an image (for debugging).
Definition: jas_image.c:997
JAS_DLLEXPORT int jas_image_addfmt(int id, const char *name, const char *ext, const char *desc, const jas_image_fmtops_t *ops)
Add entry to table of image formats.
Definition: jas_image.c:687
JAS_ATTRIBUTE_CONST JAS_DLLEXPORT const char * jas_image_fmttostr(int fmt)
Get the name of the image format with the specified ID.
Definition: jas_image.c:744
JAS_DLLEXPORT void jas_image_delcmpt(jas_image_t *image, unsigned cmptno)
Delete a component from an image.
Definition: jas_image.c:830
JAS_DLLEXPORT int jas_image_sampcmpt(jas_image_t *image, unsigned cmptno, unsigned newcmptno, jas_image_coord_t ho, jas_image_coord_t vo, jas_image_coord_t hs, jas_image_coord_t vs, int sgnd, unsigned prec)
???
Definition: jas_image.c:1211
Image format information.
Definition: jas_image.h:299
JAS_DLLEXPORT void jas_image_destroy(jas_image_t *image)
Deallocate any resources associated with an image.
Definition: jas_image.c:303
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT const jas_image_fmtinfo_t * jas_image_lookupfmtbyname(const char *name)
Lookup image format information by the format name.
Definition: jas_image.c:889